Standard

octet(s)	content	value	meaning	notes
1-4	"grib" definition	71, 82, 73, 76	'GRIB'	Coded according to the International Alphabet Number 5
5-6	reserved
7	discipline	0	meteorological
8	grib edition number	2
9	total length of grib message in octets	varies

Standard

octet(s)	content	value	meaning
1-4	length of section in octets	21
5	section number	1
6	ID of originating center	7	National Weather Service - NCEP
8	ID of origin sub-center	14	MDL
10	GRIB master tables version number	1
11	GRIB local tables' version number	0
12	significance of reference time	1	start of forecast
13-14	Year	varies
15	Month	varies
16	Day	varies
17	Hour	0
18	Minute	0
19	Second	0
20	Production Status of Processed data in the GRIB message	0	operational product
21	Type of processed data in this GRIB message	1	forecast products

 

tstm03

octet(s)	content	value	meaning
1-4	length of section in octets	21
5	section number	1
6	ID of originating center	7	National Weather Service - NCEP
8	ID of origin sub-center	14	MDL
10	GRIB master tables version number	2
11	GRIB local tables' version number	1
12	significance of reference time	1	start of forecast
13-14	Year	varies
15	Month	varies
16	Day	varies
17	Hour	0
18	Minute	0
19	Second	0
20	Production Status of Processed data in the GRIB message	1	operational test product
21	Type of processed data in this GRIB message	1	forecast products

CONUS

octet(s)	content	value	meaning	notes
1-4	Length of the section	81
5	section number	3
6	Source of grid definition	0		Specified in Code - oct 3.13
7-10	Number of data points	3744965
11	Number of octets for optional list of numbers defining number of points	0	grid is regular; no appended data
12	Interpretation of list of numbers defining number of points	0	There is no appended list
13-14	Grid definition template number	30	Lambert Conformal	Can be Secant, Tangent, Conical, or Bipolar;
15	Shape of the Earth	1	Earth assumed spherical with radius specified (in m) by data producer
16	Scale factor of radius of spherical Earth	0
17-20	Scale value of radius of spherical Earth	6371200
21	Scale factor of major axis of oblate spheroid Earth	255
22-25	Scaled value of major axis of oblate spheroid Earth	255
26	Scale factor of minor axis of oblate spheroid Earth	255
27-30	Scaled value of minor axis of oblate spheroid Earth	255
31-34	Nx ― number of points along the x-axis	2345
35-38	Ny — number of points along the y-axis	1597
39-42	La1― latitude of first grid point	19229000
43-46	Lo1― longitude of first grid point	233723400
47	Resolution and component flags	48	i direction increments given; j direction increments given; Resolved u and v components of vector quantities relative to easterly and northerly directions	convert value to binary to read in table 3.3 (48 = 00110000)
48-51	LaD ― latitude where Dx and Dy are specified	25000000
52-55	LoV ― longitude of meridian parallel to y-axis along which latitude increases as the y-coordinate increases	265000000
56-59	Dx ― x-direction grid length	2539703		Grid length is in units of 10-3 m at the latitude specified by LaD
60-63	Dy ― y-direction grid length	2539703		Grid length is in units of 10-3 m at the latitude specified by LaD
64	Projection centre flag	0	North Pole is on the projection plane; Only one projection center is used	convert value to binary to read in table 3.5 (0 = 00000000)
65	Scanning mode	80	Points in the first row or column scan in the +i (+x) direction. Points in the first row or column scan in the +j (+y) direction.  Adjacent points in the j (x) direction are consecutive. Adjacent rows scan in the opposite direction.	convert value to binary to read in table 3.4 (64 = 01010000)
66	Latin 1 ― first latitude from the pole at which the secant cone cuts the sphere	25000000
70	Latin 2 ― second latitude from the pole at which the secant cone cuts the sphere	25000000
74-77	Latitude of the southern pole of projection	-90		For tstm03 this =0; for all others output read=4204967296 (for non-tstorm) Doesn't seem to be a valid entry; output degrib text=0-90; perhaps it is a bug in code for read-out for -90 value (after corrections)?;
78-81	Longitude of the southern pole of projection	0

CONUS (dryts03/dryts06)

octet(s)	content	value	meaning	notes
1-4	Length of the section	81
5	section number	3
6	Source of grid definition	0
7-10	Number of data points	3744965
11	Number of octets for optional list of numbers defining number of points	0	grid is regular; no appended data
12	Interpetation of list of numbers defining number of points	0	There is no appended list
13-14	Grid definition template number	30	Lambert Conformal
15	Shape of the Earth	6	Earth assumed spherical with radius = 6,371,229.0
16	Scale factor of radius of spherical Earth	0
17-20	Scale value of radius of spherical Earth	0
21	Scale factor of major axis of oblate spheroid Earth	0
22-25	Scaled value of major axis of oblate spheroid Earth	0
26	Scale factor of minor axis of oblate spheroid Earth	0
27-30	Scaled value of minor axis of oblate spheroid Earth	0
31-34	Nx ― number of points along the x-axis	2345
35-38	Ny — number of points along the y-axis	1597
39-42	La1― latitude of first grid point	19229000
43-46	Lo1― longitude of first grid point	233723400
47	Resolution and component flags	56	i direction increments given; j direction increments given; Resolved u and v components of vector quantities relative to the defined grid in the direction of increasing x and y (or i and j) coordinates, respectively	convert value to binary to read meaning in table 3.3 (56 =00111000)
48-51	LaD ― latitude where Dx and Dy are specified	25000000
52-55	LoV ― longitude of meridian parallel to y-axis along which latitude increases as the y-coordinate increases	265000000
56-59	Dx ― x-direction grid length	2539703
60-63	Dy ― y-direction grid length	2539703
64	Projection centre flag	0	North Pole is on the projection plane; Only one projection center is used
65	Scanning mode	64	Points in the first row or column scan in the +i (+x) direction; Points in the first row or column scan in the +j (+y) direction; Adjacent points in the i (x) direction are consecutive; All rows scan in the same direction; Points within odd rows are not offset in i(x) direction; Points within even rows are not offset in i(x) direction; Points are not offset in j(y) direction; Rows have Ni grid points and columns have Nj grid points	convert value to binary to read in table 3.4 (64 = 01000000)
66	Latin 1 ― first latitude from the pole at which the secant cone cuts the sphere	25000000
70	Latin 2 ― second latitude from the pole at which the secant cone cuts the sphere	25000000
74-77	Latitude of the southern pole of projection	0
78-81	Longitude of the southern pole of projection	0

Alaska

octet(s)	content	value	meaning	notes
1-4	Length of the section	65
5	section number	3
6	Source of grid definition	0	Specified in Code - oct 3.13
7-10	Number of data points	1822145
11	Number of octets for optional list of numbers defining number of points	0	grid is regular; no appended data
12	Interpretation of list of numbers defining number of points	0	There is no appended list
13-14	Grid definition template number	20	Polar Stereographic
15	Shape of the Earth	1	Earth assumed spherical with radius specified (in m) by data producer
16	Scale factor of radius of spherical Earth	0
17-20	Scale value of radius of spherical Earth	6371200
21	Scale factor of major axis of oblate spheroid Earth	255
22-25	Scaled value of major axis of oblate spheroid Earth	255
26	Scale factor of minor axis of oblate spheroid Earth	255
27-30	Scaled value of minor axis of oblate spheroid Earth	255
31-24	Nx ― number of points along the x-axis	1649
35-38	Ny ― number of points along the y-axis	1105
39-42	La1 ― latitude of first grid point	40530000
43-46	Lo1 ― longitude of first grid point	181429000
47	Resolution and component flags	48	i direction increments given; j direction increments given; Resolved u and v components of vector quantities relative to easterly and northerly directions	convert value to binary to read in table 3.3 (48 = 00110000)
48-51	LaD ― latitude where Dx and Dy are specified	60000000
52-55	LoV ― orientation of the grid	210000000		"LoV is the longitude value of the meridian which is parallel to the y-axis (or columns of the grid) along which latitude increases as the y-coordinate increases (the orientation longitude may or may not appear on a particular grid)."
56-59	Dx ― x-direction grid length	2976560		Grid length is in units of 10-3 m at the latitude specified by LaD
60-63	Dy ― y-direction grid length	2976560		Grid length is in units of 10-3 m at the latitude specified by LaD
64	Projection centre flag	0	North Pole is on the projection plane; Only one projection center is used	convert value to binary to read in table 3.5 (0 = 00000000)
65	Scanning mode	80	Points in the first row or column scan in the +i (+x) direction. Points in the first row or column scan in the +j  (+y) direction. Adjacent points in the j (x) direction are                  consecutive. Adjacent rows scan in the opposite direction.	convert value to binary to read in table 3.4 (64 = 01010000)

Hawaii

octet(s)	content	value	meaning	notes
1-4	Length of the section	72
5	section number	3
6	Source of grid definition	0	Specified in Code - oct 3.13
7-10	Number of data points	350625
11	Number of octets for optional list of numbers defining number of points	0	grid is regular; no appended data
12	Interpretation of list of numbers defining number of points	0	There is no appended list
13-14	Grid definition template number	10	Mercator
15	Shape of the Earth	1	Earth assumed spherical with radius specified (in m) by data producer
16	Scale factor of radius of spherical Earth	0
17-20	Scale value of radius of spherical Earth	6371200
21	Scale factor of major axis of oblate spheroid Earth	255
22-25	Scaled value of major axis of oblate spheroid Earth	255
26	Scale factor of minor axis of oblate spheroid Earth	255
27-30	Scaled value of minor axis of oblate spheroid Earth	255
31-34	Nj—number of points along a parallel	625
35-38	Nj—number of points along a meridian	561
39-42	La1 ― latitude of first grid point	14351500
43-46	Lo1 ― longitude of first grid point	195030500
47	Resolution and component flags	0	i direction increments not given, j direction increments not given, Resolved u and v components of vector quantities relative to easterly and northerly directions	convert value to binary to read meaning in table 3.3
48-51	LaD — latitude(s) at which the Mercator projection intersects the Earth (Latitude(s) where Di and Dj are specified)	20000000
52-55	La2 ― latitude of last grid point	26860500
56-59	Lo2 — longitude of last grid point	209959800
60	Scanning mode	64	Points in the first row or column scan in the +i (+x) direction. Points in the first row or column scan in the +j  (+y) direction. Adjacent points in the j (x) direction are consecutive. Adjacent rows scan in the opposite direction.	convert value to binary to read in table 3.4 (64 = 01010000)
61-64	Orientation of the grid, angle between i direction on the map and the Equator	200000000		Limited to the range of 0 to 90 degrees; if the angle of orientation of the grid is neither 0 nor 90 degrees, Di and Dj must be equal to each other
65-68	Dj — longitudinal direction grid length	2500000		Grid lengths are in units of 10-3 m, at the latitude specified by LaD
69-72	Dj ― latitudinal direction grid length	2500000		Grid lengths are in units of 10-3 m, at the latitude specified by LaD

Puerto Rico

octet(s)	content	value	meaning	notes
1-4	Length of the section	72
5	section number	3
6	Source of grid definition	0	Specified in Code - oct 3.13
7-10	Number of data points	76275
11	Number of octets for optional list of numbers defining number of points	0	grid is regular; no appended data
12	Interpretation of list of numbers defining number of points	0	There is no appended list
13-14	Grid definition template number	10	Mercator
15	Shape of the Earth	1	Earth assumed spherical with radius specified (in m) by data producer
16	Scale factor of radius of spherical Earth	0
17-20	Scale value of radius of spherical Earth	6371200
21	Scale factor of major axis of oblate spheroid Earth	255
22-25	Scaled value of major axis of oblate spheroid Earth	255
26	Scale factor of minor axis of oblate spheroid Earth	255
27-30	Scaled value of minor axis of oblate spheroid Earth	255
31-34	Nj—number of points along a parallel	339
35-38	Nj—number of points along a meridian	225
39-42	La1 ― latitude of first grid point	16977500
43-46	Lo1 ― longitude of first grid point	291972200
47	Resolution and component flags	0	i direction increments not given, j direction increments not given, Resolved u and v components of vector quantities relative to easterly and northerly directions	convert value to binary to read meaning in table 3.3
48-51	LaD — latitude(s) at which the Mercator projection intersects the Earth (Latitude(s) where Di and Dj are specified)	20000000
52-55	La2 ― latitude of last grid point	19522100
56-59	Lo2 — longitude of last grid point	296015600
60	Scanning mode	80	Points in the first row or column scan in the +i (+x) direction. Points in the first row or column scan in the +j  (+y) direction. Adjacent points in the j (x) direction are consecutive. Adjacent rows scan in the opposite direction.	convert value to binary to read in table 3.4 (64 = 01010000)
61-64	Orientation of the grid, angle between i direction on the map and the Equator	295000000		Limited to the range of 0 to 90 degrees; if the angle of orientation of the grid is neither 0 nor 90 degrees, Di and Dj must be equal to each other
65-68	Dj — longitudinal direction grid length	1250000		Grid lengths are in units of 10-3 m, at the latitude specified by LaD
69-72	Dj ― latitudinal direction grid length	1250000		Grid lengths are in units of 10-3 m, at the latitude specified by LaD

Oceanic

octet(s)	content	value	meaning	notes
1-4	Length of the section	72
5	section number	3
6	Source of grid definition	0	Specified in Code - oct 3.13
7-10	Number of data points	4573389
11	Number of octets for optional list of numbers defining number of points	0	grid is regular; no appended data
12	Interpretation of list of numbers defining number of points	0	There is no appended list
13-14	Grid definition template number	10	Mercator
15	Shape of the Earth	1	Earth assumed spherical with radius specified (in m) by data producer
16	Scale factor of radius of spherical Earth	0
17-20	Scale value of radius of spherical Earth	6371200
21	Scale factor of major axis of oblate spheroid Earth	255
22-25	Scaled value of major axis of oblate spheroid Earth	255
26	Scale factor of minor axis of oblate spheroid Earth	255
27-30	Scaled value of minor axis of oblate spheroid Earth	255
31-34	Nj—number of points along a parallel	2517
35-38	Nj—number of points along a meridian	1817
39-42	La1 ― latitude of first grid point	2177902848
43-46	Lo1 ― longitude of first grid point	129905800
47	Resolution and component flags	48	i direction increments given, j direction increments given, Resolved u and v components of vector quantities relative to easterly and northerly directions	convert value to binary to read meaning in table 3.3
48-51	LaD — latitude(s) at which the Mercator projection intersects the Earth (Latitude(s) where Di and Dj are specified)	20000000
52-55	La2 ― latitude of last grid point	80383000
56-59	Lo2 — longitude of last grid point	10689200
60	Scanning mode	80	Points in the first row or column scan in the +i (+x) direction. Points in the first row or column scan in the +j  (+y) direction. Adjacent points in the j (x) direction are  consecutive. Adjacent rows scan in the opposite direction.	convert value to binary to read in table 3.4 (64 = 01010000)
61-64	Orientation of the grid, angle between i direction on the map and the Equator	0		Limited to the range of 0 to 90 degrees; if the angle of orientation of the grid is neither 0 nor 90 degrees, Di and Dj must be equal to each other
65-68	Dj — longitudinal direction grid length	10000000		Grid lengths are in units of 10-3 m, at the latitude specified by LaD
69-72	Dj ― latitudinal direction grid length	10000000		Grid lengths are in units of 10-3 m, at the latitude specified by LaD

appt

octet(s)	content	value	meaning	notes
1-4	length of section in octets	34
5	section number	4
6-7	Number of coordinate values after template	0	no vertical discretization has occured for this data
8-9	product template	0	Analysis or forecast at a horizontal level or in a horizontal layer at a point in time
10	Parameter category	0	Temperature
11	Parameter number	21	Apparent Temperature ** : K : APTMP
12	Type of generating process	2	Forecast
13	Background generating process identifier	255
14	Analysis or forecast generating process identified	104	National Blend GRIB
15-16	Hours of observational data cutoff after reference time	65535
17	Minutes of observational data cutoff after reference time	255
18	Indicator of unit of time range	1	Hour
19-22	Forecast time in units defined by octet 18	varies
23	Type of first fixed surface	103	Specified Height Level Above Ground : m
24	Scale factor of first fixed surface	0
25-28	Scaled value of first fixed surface	2
29	Type of second fixed surfaced	255	Missing
30	Scale factor of second fixed surface	0
31-34	Scaled value of second fixed surfaces	0

cape

octet(s)	content	value	meaning	notes
1-4	length of section in octets	34
5	section number	4
6-7	Number of coordinate values after template	0	no vertical discretization has occured for this data
8-9	product template	0	Analysis or forecast at a horizontal level or in a horizontal layer at a point in time
10	Parameter category	7	Thermodynamic Stability indicies
11	Parameter number	6	Convective Available Potential Energy : J kg-1 : CAPE
12	Type of generating process	2	Forecast
13	Background generating process identifier	255
14	Analysis or forecast generating process identified	104	National Blend GRIB
15-16	Hours of observational data cutoff after reference time	65535
17	Minutes of observational data cutoff after reference time	255
18	Indicator of unit of time range	1	Hour
19-22	Forecast time in units defined by octet 18	varies
23	Type of first fixed surface	1	Ground or Water Surface
24	Scale factor of first fixed surface	0
25-28	Scaled value of first fixed surface	0
29	Type of second fixed surfaced	255	Missing
30	Scale factor of second fixed surface	0
31-34	Scaled value of second fixed surfaces	0

cig

octet(s)	content	value	meaning	notes
1-4	length of section in octets	34
5	section number	4
6-7	Number of coordinate values after template	0	no vertical discretization has occured for this data
8-9	product template	0	Analysis or forecast at a horizontal level or in a horizontal layer at a point in time
10	Parameter category	6	Cloud
11	Parameter number	13	Ceiling : m : CEIL
12	Type of generating process	2	Forecast
13	Background generating process identifier	255
14	Analysis or forecast generating process identified	104	National Blend GRIB
15-16	Hours of observational data cutoff after reference time	65535
17	Minutes of observational data cutoff after reference time	255
18	Indicator of unit of time range	1	Hour
19-22	Forecast time in units defined by octet 18	varies
23	Type of first fixed surface	215	Cloud ceiling
24	Scale factor of first fixed surface	0
25-28	Scaled value of first fixed surface	0
29	Type of second fixed surfaced	255	Missing
30	Scale factor of second fixed surface	0
31-34	Scaled value of second fixed surfaces	0

cigp_lt1000

octet(s)	content	value	meaning	notes
1-4	length of section in octets	47
5	section number	4
6-7	Number of coordinate values after template	0	no vertical discretization has occured for this data
8-9	product template	5	Probability forecasts at a horizontal level or in a horizontal layer at a point in time
10	Parameter category	6	Cloud
11	Parameter number	13	Ceiling : m : CEIL
12	Type of generating process	5	Probability Forecast
13	Background generating process identifier	255
14	Forecast generating process identified	108	Localized Aviation MOS Program (LAMP)
15-16	Hours after reference time data cutoff	65535
17	Minutes after reference time data cutoff	255
18	Indicator of unit of time range	1	Hour
19-22	Forecast time in units defined by octet 18	varies
23	Type of first fixed surface	215	Cloud ceiling
24	Scale factor of first fixed surface	0
25-28	Scaled value of first fixed surface	0
29	Type of second fixed surfaced	255	Missing
30	Scale factor of second fixed surface	0
31-34	Scaled value of second fixed surfaces	0
35	Forecastprobability number	3
36	Total number of forecast probabilities	7
37	Probability type	0	Probability of event below lower limit
38	Scale factor of lower limit	2
39-42	Scaled value of lower limit	30480
43	Scale factor of upper limit	255
44-47	Scaled value ofupper limit	255

cigp_lt500

octet(s)	content	value	meaning	notes
1-4	length of section in octets	47
5	section number	4
6-7	Number of coordinate values after template	0	no vertical discretization has occured for this data
8-9	product template	5	Probability forecasts at a horizontal level or in a horizontal layer at a point in time
10	Parameter category	6	Cloud
11	Parameter number	13	Ceiling : m : CEIL
12	Type of generating process	5	Probability Forecast
13	Background generating process identifier	255
14	Forecast generating process identified	108	Localized Aviation MOS Program (LAMP)
15-16	Hours after reference time data cutoff	65535
17	Minutes after reference time data cutoff	255
18	Indicator of unit of time range	1	Hour
19-22	Forecast time in units defined by octet 18	varies
23	Type of first fixed surface	215	Cloud ceiling
24	Scale factor of first fixed surface	0
25-28	Scaled value of first fixed surface	0
29	Type of second fixed surfaced	255	Missing
30	Scale factor of second fixed surface	0
31-34	Scaled value of second fixed surfaces	0
35	Forecastprobability number	2
36	Total number of forecast probabilities	7
37	Probability type	0	Probability of event below lower limit
38	Scale factor of lower limit	2
39-42	Scaled value of lower limit	15240
43	Scale factor of upper limit	255
44-47	Scaled value ofupper limit	255

cigp_lte3000

octet(s)	content	value	meaning	notes
1-4	length of section in octets	47
5	section number	4
6-7	Number of coordinate values after template	0	no vertical discretization has occured for this data
8-9	product template	5	Probability forecasts at a horizontal level or in a horizontal layer at a point in time
10	Parameter category	6	Cloud
11	Parameter number	13	Ceiling : m : CEIL
12	Type of generating process	5	Probability Forecast
13	Background generating process identifier	255
14	Forecast generating process identified	108	Localized Aviation MOS Program (LAMP)
15-16	Hours after reference time data cutoff	65535
17	Minutes after reference time data cutoff	255
18	Indicator of unit of time range	1	Hour
19-22	Forecast time in units defined by octet 18	varies
23	Type of first fixed surface	215	Cloud ceiling
24	Scale factor of first fixed surface	0
25-28	Scaled value of first fixed surface	0
29	Type of second fixed surfaced	255	Missing
30	Scale factor of second fixed surface	0
31-34	Scaled value of second fixed surfaces	0
35	Forecastprobability number	5
36	Total number of forecast probabilities	7
37	Probability type	0	Probability of event below lower limit
38	Scale factor of lower limit	2
39-42	Scaled value of lower limit	91450
43	Scale factor of upper limit	255
44-47	Scaled value ofupper limit	255

cldbse

octet(s)	content	value	meaning	notes
1-4	length of section in octets	34
5	section number	4
6-7	Number of coordinate values after template	0	no vertical discretization has occured for this data
8-9	product template	0	Analysis or forecast at a horizontal level or in a horizontal layer at a point in time
10	Parameter category	6	Cloud
11	Parameter number	13	Ceiling : m : CEIL
12	Type of generating process	2	Forecast
13	Background generating process identifier	255
14	Analysis or forecast generating process identified	104	National Blend GRIB
15-16	Hours of observational data cutoff after reference time	65535
17	Minutes of observational data cutoff after reference time	255
18	Indicator of unit of time range	1	Hour
19-22	Forecast time in units defined by octet 18	varies
23	Type of first fixed surface	2	Cloud Base Level
24	Scale factor of first fixed surface	0
25-28	Scaled value of first fixed surface	0
29	Type of second fixed surfaced	255	Missing
30	Scale factor of second fixed surface	0
31-34	Scaled value of second fixed surfaces	0

cwasp

octet(s)	content	value	meaning	notes
1-4	length of section in octets	36
5	section number	4
6-7	Number of coordinate values after template	0	no vertical discretization has occured for this data
8-9	product template	2	Derived forecasts based on all ensemble members at a horizontal level or in a horizontal layer at a point in time
10	Parameter category	19	Physical atmospheric properties
11	Parameter number	239	Craven-Wiedenfeld Aggregate Severe Parameter : Numeric : CWASP
12	Type of generating process	2	Forecast
13	Background generating process identifier	255
14	Forecast generating process identified	104	National Blend GRIB
15-16	Hours after reference time data cutoff	65535
17	Minutes after reference time data cutoff	255
18	Indicator of unit of time range	1	Hour
19-22	Forecast time in units defined by octet 18	varies
23	Type of first fixed surface	1	Ground or Water Surface
24	Scale factor of first fixed surface	0
25-28	Scaled value of first fixed surface	0
29	Type of second fixed surfaced	255	Missing
30	Scale factor of second fixed surface	0
31-34	Scaled value of second fixed surfaces	0
35	Derived forecast	241	NotFound
36	Number of forecasts in the ensemble	241

dewp

octet(s)	content	value	meaning	notes
1-4	length of section in octets	34
5	section number	4
6-7	Number of coordinate values after template	0	no vertical discretization has occured for this data
8-9	product template	0	Analysis or forecast at a horizontal level or in a horizontal layer at a point in time
10	Parameter category	0	Temperature
11	Parameter number	6	Dew Point Temperature : K : DPT
12	Type of generating process	2	Forecast
13	Background generating process identifier	255
14	Analysis or forecast generating process identified	104	National Blend GRIB
15-16	Hours of observational data cutoff after reference time	65535
17	Minutes of observational data cutoff after reference time	255
18	Indicator of unit of time range	1	Hour
19-22	Forecast time in units defined by octet 18	varies
23	Type of first fixed surface	103	Specified Height Level Above Ground : m
24	Scale factor of first fixed surface	0
25-28	Scaled value of first fixed surface	2
29	Type of second fixed surfaced	255	Missing
30	Scale factor of second fixed surface	0
31-34	Scaled value of second fixed surfaces	0

dryts03

octet(s)	content	value	meaning	notes
1-4	length of section in octets	71
5	section number	4
6-7	Number of coordinate values after template	0	no vertical discretization has occured for this data
8-9	product template	9	Probability forecasts at a horizontal level or in a horizontal layer in a continuous or non-continuous time interval
10	Parameter category	19	Physical atmospheric properties
11	Parameter number	237	Dry Thunderstorm Probability : % : DRYTPROB
12	Type of generating process	5	Probability Forecast
13	Background generating process identifier	0
14	Forecast generating process identifier	113	Products from NCEP SREF processing
15-16	Hours after reference time data cutoff	0
17	Minutes after reference time data cutoff	0
18	Indicator of unit of time range	1	Hour
19-22	Forecast time in units defined by octet 18	varies
23	Type of first fixed surface	1	Ground or Water Surface
24	Scale factor of first fixed surface	0
25-28	Scaled value of first fixed surface	0
29	Type of second fixed surfaced	255	Missing
30	Scale factor of second fixed surface	0
31-34	Scaled value of second fixed surfaces	0
35	Forecast probability number	0
36	Total number of forecast probabilities	21
37	Probability Type	1	Probability of event above upper limit
38	Scale factor of lower limit	0
39-42	Scaled value of lower limit	0
43	Scale factor of upper limit	0
44-47	Scaled value of upper limit	0
48-49	Year of end of overall time interval	varies
50	Month of end of overall time interval	varies
51	Day of end of overall time interval	varies
52	Hour of end of overall time interval	varies
53	Minute of end of overall time interval	varies
54	Second of end of overall time interval	varies
55	nnumber of time ranges specifications describing the time intervals used to calculate the statistically-processed field	1
56-59	Total number of data values missing in the statistical process	0
60	Statistical process used to calculate the processed field from the field at each time increment during the time range	1	Accumulation(see Note 1)
61	Type of time increment between successive fields used in the statistical processing	2	Successive times processed have same start time of forecast, forecast time is incremented.
62	Indicator of unit of time for time range over which statistical processing is done	1	Hour
63-66	Length of the time range over which statistical processing is done, in units defined by the previous octet	3
67	Indicator of unit of time for the increment between the successive fields used	1	Hour
68-71	Time increment between successive fields, in units defined by the previous octet	0

dswrf

octet(s)	content	value	meaning	notes
1-4	length of section in octets	34
5	section number	4
6-7	Number of coordinate values after template	0	no vertical discretization has occured for this data
8-9	product template	0	Analysis or forecast at a horizontal level or in a horizontal layer at a point in time
10	Parameter category	4	Short-wave radiation
11	Parameter number	7	Downward Short-Wave Radiation Flux : W m-2 : DSWRF
12	Type of generating process	2	Forecast
13	Background generating process identifier	255
14	Analysis or forecast generating process identified	104	National Blend GRIB
15-16	Hours of observational data cutoff after reference time	65535
17	Minutes of observational data cutoff after reference time	255
18	Indicator of unit of time range	1	Hour
19-22	Forecast time in units defined by octet 18	varies
23	Type of first fixed surface	1	Ground or Water Surface
24	Scale factor of first fixed surface	0
25-28	Scaled value of first fixed surface	0
29	Type of second fixed surfaced	255	Missing
30	Scale factor of second fixed surface	0
31-34	Scaled value of second fixed surfaces	0

echotop

octet(s)	content	value	meaning	notes
1-4	length of section in octets	34
5	section number	4
6-7	Number of coordinate values after template	0	no vertical discretization has occured for this data
8-9	product template	0	Analysis or forecast at a horizontal level or in a horizontal layer at a point in time
10	Parameter category	16	Forecast Radar Imagery
11	Parameter number	3	Echo Top (See Note 1) : m : RETOP
12	Type of generating process	2	Forecast
13	Background generating process identifier	255
14	Analysis or forecast generating process identified	104	National Blend GRIB
15-16	Hours of observational data cutoff after reference time	65535
17	Minutes of observational data cutoff after reference time	255
18	Indicator of unit of time range	1	Hour
19-22	Forecast time in units defined by octet 18	varies
23	Type of first fixed surface	3	Level of Cloud Tops
24	Scale factor of first fixed surface	0
25-28	Scaled value of first fixed surface	0
29	Type of second fixed surfaced	255	Missing
30	Scale factor of second fixed surface	0
31-34	Scaled value of second fixed surfaces	0

ellrod

octet(s)	content	value	meaning	notes
1-4	length of section in octets	34
5	section number	4
6-7	Number of coordinate values after template	0	no vertical discretization has occured for this data
8-9	product template	0	Analysis or forecast at a horizontal level or in a horizontal layer at a point in time
10	Parameter category	19	Physical atmospheric properties
11	Parameter number	238	Ellrod Index : ELLINX
12	Type of generating process	2	Forecast
13	Background generating process identifier	255
14	Analysis or forecast generating process identified	104	National Blend GRIB
15-16	Hours of observational data cutoff after reference time	65535
17	Minutes of observational data cutoff after reference time	255
18	Indicator of unit of time range	1	Hour
19-22	Forecast time in units defined by octet 18	varies
23	Type of first fixed surface	100	Isobaric Surface : Pa
24	Scale factor of first fixed surface	0
25-28	Scaled value of first fixed surface	40000
29	Type of second fixed surfaced	100	Isobaric Surface : Pa
30	Scale factor of second fixed surface	0
31-34	Scaled value of second fixed surfaces	30000

flatice01

octet(s)	content	value	meaning	notes
1-4	length of section in octets	58
5	section number	4
6-7	Number of coordinate values after template	0	no vertical discretization has occured for this data
8-9	product template	8	Average, accumulation, extreme values or other statistically processed values at a horizontal level or in a horizontal layer in a continuous or non-continuous time interval
10	Parameter category	1	Moisture
11	Parameter number	228	Flat Ice Accumulation (FRAM) : kg m-2 : FICEAC
12	Type of generating process	2	Forecast
13	Background generating process identifier	255
14	Analysis or forecast generating process identified	104	National Blend GRIB
15-16	Hours after reference time data cutoff	65535
17	Minutes after reference time data cutoff	255
18	Indicator of unit of time range	1	Hour
19-22	Forecast time in units defined by octet 18	varies
23	Type of first fixed surface	1	Ground or Water Surface
24	Scale factor of first fixed surface	0
25-28	Scaled value of first fixed surface	0
29	Type of second fixed surfaced	255	Missing
30	Scale factor of second fixed surface	0
31-34	Scaled value of second fixed surfaces	0
35-36	YearTime of end of overall time interval	varies
37	MonthTime of end of overall time interval	varies
38	DayTime of end of overall time interval	varies
39	HourTime of end of overall time interval	varies
40	MinuteTime of end of overall time interval	varies
41	SecondTime of end of overall time interval	varies
42	n - number of time ranges specifications describing the time intervals used to calculate the statistically-processed field	1
43-46	Total number of data values missing in statistical process	0
47	Statistical process used to calculate the processed field from the field at each time increment during the time range	1	Accumulation(see Note 1)
48	Type of time increment between successive fields used in the statistical processing	2	Successive times processed have same start time of forecast, forecast time is incremented.
49	Indicator of unit of time for time range over which statistical processing is done	1	Hour
50-53	Length of the time range over which statistical processing is done, in units defined by the previous octet	1
54	Indicator of unit of time for the increment between the successive fields used	1	Hour
55-58	Time increment between successive fields, in units defined by the previous octet	0

frzspray

octet(s)	content	value	meaning	notes
1-4	length of section in octets	34
5	section number	4
6-7	Number of coordinate values after template	0	no vertical discretization has occured for this data
8-9	product template	0	Analysis or forecast at a horizontal level or in a horizontal layer at a point in time
10	Parameter category	3	Mass
11	Parameter number	204	Y-gradient of Height : m-1 : HGTY
12	Type of generating process	2	Forecast
13	Background generating process identifier	255
14	Analysis or forecast generating process identified	104	National Blend GRIB
15-16	Hours of observational data cutoff after reference time	65535
17	Minutes of observational data cutoff after reference time	255
18	Indicator of unit of time range	1	Hour
19-22	Forecast time in units defined by octet 18	varies
23	Type of first fixed surface	1	Ground or Water Surface
24	Scale factor of first fixed surface	0
25-28	Scaled value of first fixed surface	0
29	Type of second fixed surfaced	255	Missing
30	Scale factor of second fixed surface	0
31-34	Scaled value of second fixed surfaces	0

haines_analysis

octet(s)	content	value	meaning	notes
1-4	length of section in octets	36
5	section number	4
6-7	Number of coordinate values after template	0	no vertical discretization has occured for this data
8-9	product template	2	Derived forecasts based on all ensemble members at a horizontal level or in a horizontal layer at a point in time
10	Parameter category	4	Short-wave radiation
11	Parameter number	2	Short-Wave Radiation Flux* : W m-2 : SWAVR
12	Type of generating process	0	Analysis
13	Background generating process identifier	255
14	Forecast generating process identified	104	National Blend GRIB
15-16	Hours after reference time data cutoff	65535
17	Minutes after reference time data cutoff	255
18	Indicator of unit of time range	1	Hour
19-22	Forecast time in units defined by octet 18	varies
23	Type of first fixed surface	200	Entire atmosphere (considered as a single layer)
24	Scale factor of first fixed surface	0
25-28	Scaled value of first fixed surface	0
29	Type of second fixed surfaced	255	Missing
30	Scale factor of second fixed surface	0
31-34	Scaled value of second fixed surfaces	0
35	Derived forecast	241	NotFound
36	Number of forecasts in the ensemble	241

ice24_50p

octet(s)	content	value	meaning	notes
1-4	length of section in octets	59
5	section number	4
6-7	Number of coordinate values after template	0	no vertical discretization has occured for this data
8-9	product template	10	Percentile forecasts at a horizontal level or in a horizontal layer in a continuous or non-continuous time interval
10	Parameter category	1	Moisture
11	Parameter number	228	Flat Ice Accumulation (FRAM) : kg m-2 : FICEAC
12	Type of generating process	2	Forecast
13	Background generating process identifier	255
14	Forecast generating process identifier	104	National Blend GRIB
15-16	Hours after reference time data cutoff	65535
17	Minutes after reference time data cutoff	255
18	Indicator of unit of time range	1	Hour
19-22	Forecast time in units defined by previous octet	varies
23	Type of first fixed surface	1	Ground or Water Surface
24	Scale factor of first fixed surface	0
25-28	Scaled value of first fixed surface	0
29	Type of second fixed surfaced	255	Missing
30	Scale factor of second fixed surface	0
31-34	Scaled value of second fixed surfaces	0
35	Percentile value	50
36-37	Year of end of overall time interval	varies
38	Month of end of overall time interval	varies
39	Day of end of overall time overall time interval	varies
40	Hour of end of overall time interval	varies
41	Minute of end overall time interval	0
42	Second of end of overall time interval	varies
43	nnumber of time ranges specifications describing the time intervals used to calculate the statistically-processed field	1
44-47	Total number of data values missing in the statistical process	0
48	Statistical process used to calculate the processed field from the field at each time increment during the time range	1	Accumulation(see Note 1)
49	Type of time increment between successive fields used in the statistical processing	2	Successive times processed have same start time of forecast, forecast time is incremented.
50	Indicator of unit of time range over which statistical processing is done	1	Hour
51-54	Length of the time range over which statistical processing is done, in units defined by the previous octet	24
55	Indicator of unit of time for the increment between the successive fields used	1	Hour
56-59	Time increment between successive fields, in units defined by the previous octet	24

ice24prb001

octet(s)	content	value	meaning	notes
1-4	length of section in octets	71
5	section number	4
6-7	Number of coordinate values after template	0	no vertical discretization has occured for this data
8-9	product template	9	Probability forecasts at a horizontal level or in a horizontal layer in a continuous or non-continuous time interval
10	Parameter category	1	Moisture
11	Parameter number	228	Flat Ice Accumulation (FRAM) : kg m-2 : FICEAC
12	Type of generating process	2	Forecast
13	Background generating process identifier	255
14	Forecast generating process identifier	104	National Blend GRIB
15-16	Hours after reference time data cutoff	65535
17	Minutes after reference time data cutoff	255
18	Indicator of unit of time range	1	Hour
19-22	Forecast time in units defined by octet 18	varies
23	Type of first fixed surface	1	Ground or Water Surface
24	Scale factor of first fixed surface	0
25-28	Scaled value of first fixed surface	0
29	Type of second fixed surfaced	255	Missing
30	Scale factor of second fixed surface	0
31-34	Scaled value of second fixed surfaces	0
35	Forecast probability number	255
36	Total number of forecast probabilities	255
37	Probability Type	1	Probability of event above upper limit
38	Scale factor of lower limit	255
39-42	Scaled value of lower limit	255
43	Scale factor of upper limit	3
44-47	Scaled value of upper limit	254
48-49	Year of end of overall time interval	varies
50	Month of end of overall time interval	varies
51	Day of end of overall time interval	varies
52	Hour of end of overall time interval	varies
53	Minute of end of overall time interval	varies
54	Second of end of overall time interval	varies
55	nnumber of time ranges specifications describing the time intervals used to calculate the statistically-processed field	1
56-59	Total number of data values missing in the statistical process	0
60	Statistical process used to calculate the processed field from the field at each time increment during the time range	1	Accumulation(see Note 1)
61	Type of time increment between successive fields used in the statistical processing	2	Successive times processed have same start time of forecast, forecast time is incremented.
62	Indicator of unit of time for time range over which statistical processing is done	1	Hour
63-66	Length of the time range over which statistical processing is done, in units defined by the previous octet	24
67	Indicator of unit of time for the increment between the successive fields used	1	Hour
68-71	Time increment between successive fields, in units defined by the previous octet	0

ice48_50p

octet(s)	content	value	meaning	notes
1-4	length of section in octets	59
5	section number	4
6-7	Number of coordinate values after template	0	no vertical discretization has occured for this data
8-9	product template	10	Percentile forecasts at a horizontal level or in a horizontal layer in a continuous or non-continuous time interval
10	Parameter category	1	Moisture
11	Parameter number	228	Flat Ice Accumulation (FRAM) : kg m-2 : FICEAC
12	Type of generating process	2	Forecast
13	Background generating process identifier	255
14	Forecast generating process identifier	104	National Blend GRIB
15-16	Hours after reference time data cutoff	65535
17	Minutes after reference time data cutoff	255
18	Indicator of unit of time range	1	Hour
19-22	Forecast time in units defined by previous octet	varies
23	Type of first fixed surface	1	Ground or Water Surface
24	Scale factor of first fixed surface	0
25-28	Scaled value of first fixed surface	0
29	Type of second fixed surfaced	255	Missing
30	Scale factor of second fixed surface	0
31-34	Scaled value of second fixed surfaces	0
35	Percentile value	50
36-37	Year of end of overall time interval	varies
38	Month of end of overall time interval	varies
39	Day of end of overall time overall time interval	varies
40	Hour of end of overall time interval	varies
41	Minute of end overall time interval	0
42	Second of end of overall time interval	varies
43	nnumber of time ranges specifications describing the time intervals used to calculate the statistically-processed field	1
44-47	Total number of data values missing in the statistical process	0
48	Statistical process used to calculate the processed field from the field at each time increment during the time range	1	Accumulation(see Note 1)
49	Type of time increment between successive fields used in the statistical processing	2	Successive times processed have same start time of forecast, forecast time is incremented.
50	Indicator of unit of time range over which statistical processing is done	1	Hour
51-54	Length of the time range over which statistical processing is done, in units defined by the previous octet	48
55	Indicator of unit of time for the increment between the successive fields used	1	Hour
56-59	Time increment between successive fields, in units defined by the previous octet	48

ice48prb001

octet(s)	content	value	meaning	notes
1-4	length of section in octets	71
5	section number	4
6-7	Number of coordinate values after template	0	no vertical discretization has occured for this data
8-9	product template	9	Probability forecasts at a horizontal level or in a horizontal layer in a continuous or non-continuous time interval
10	Parameter category	1	Moisture
11	Parameter number	228	Flat Ice Accumulation (FRAM) : kg m-2 : FICEAC
12	Type of generating process	2	Forecast
13	Background generating process identifier	255
14	Forecast generating process identifier	104	National Blend GRIB
15-16	Hours after reference time data cutoff	65535
17	Minutes after reference time data cutoff	255
18	Indicator of unit of time range	1	Hour
19-22	Forecast time in units defined by octet 18	varies
23	Type of first fixed surface	1	Ground or Water Surface
24	Scale factor of first fixed surface	0
25-28	Scaled value of first fixed surface	0
29	Type of second fixed surfaced	255	Missing
30	Scale factor of second fixed surface	0
31-34	Scaled value of second fixed surfaces	0
35	Forecast probability number	255
36	Total number of forecast probabilities	255
37	Probability Type	1	Probability of event above upper limit
38	Scale factor of lower limit	255
39-42	Scaled value of lower limit	255
43	Scale factor of upper limit	3
44-47	Scaled value of upper limit	254
48-49	Year of end of overall time interval	varies
50	Month of end of overall time interval	varies
51	Day of end of overall time interval	varies
52	Hour of end of overall time interval	varies
53	Minute of end of overall time interval	varies
54	Second of end of overall time interval	varies
55	nnumber of time ranges specifications describing the time intervals used to calculate the statistically-processed field	1
56-59	Total number of data values missing in the statistical process	0
60	Statistical process used to calculate the processed field from the field at each time increment during the time range	1	Accumulation(see Note 1)
61	Type of time increment between successive fields used in the statistical processing	2	Successive times processed have same start time of forecast, forecast time is incremented.
62	Indicator of unit of time for time range over which statistical processing is done	1	Hour
63-66	Length of the time range over which statistical processing is done, in units defined by the previous octet	48
67	Indicator of unit of time for the increment between the successive fields used	1	Hour
68-71	Time increment between successive fields, in units defined by the previous octet	0

ice72_50p

octet(s)	content	value	meaning	notes
1-4	length of section in octets	59
5	section number	4
6-7	Number of coordinate values after template	0	no vertical discretization has occured for this data
8-9	product template	10	Percentile forecasts at a horizontal level or in a horizontal layer in a continuous or non-continuous time interval
10	Parameter category	1	Moisture
11	Parameter number	228	Flat Ice Accumulation (FRAM) : kg m-2 : FICEAC
12	Type of generating process	2	Forecast
13	Background generating process identifier	255
14	Forecast generating process identifier	104	National Blend GRIB
15-16	Hours after reference time data cutoff	65535
17	Minutes after reference time data cutoff	255
18	Indicator of unit of time range	1	Hour
19-22	Forecast time in units defined by previous octet	varies
23	Type of first fixed surface	1	Ground or Water Surface
24	Scale factor of first fixed surface	0
25-28	Scaled value of first fixed surface	0
29	Type of second fixed surfaced	255	Missing
30	Scale factor of second fixed surface	0
31-34	Scaled value of second fixed surfaces	0
35	Percentile value	50
36-37	Year of end of overall time interval	varies
38	Month of end of overall time interval	varies
39	Day of end of overall time overall time interval	varies
40	Hour of end of overall time interval	varies
41	Minute of end overall time interval	0
42	Second of end of overall time interval	varies
43	nnumber of time ranges specifications describing the time intervals used to calculate the statistically-processed field	1
44-47	Total number of data values missing in the statistical process	0
48	Statistical process used to calculate the processed field from the field at each time increment during the time range	1	Accumulation(see Note 1)
49	Type of time increment between successive fields used in the statistical processing	2	Successive times processed have same start time of forecast, forecast time is incremented.
50	Indicator of unit of time range over which statistical processing is done	1	Hour
51-54	Length of the time range over which statistical processing is done, in units defined by the previous octet	72
55	Indicator of unit of time for the increment between the successive fields used	1	Hour
56-59	Time increment between successive fields, in units defined by the previous octet	72

ice72prb001

octet(s)	content	value	meaning	notes
1-4	length of section in octets	71
5	section number	4
6-7	Number of coordinate values after template	0	no vertical discretization has occured for this data
8-9	product template	9	Probability forecasts at a horizontal level or in a horizontal layer in a continuous or non-continuous time interval
10	Parameter category	1	Moisture
11	Parameter number	228	Flat Ice Accumulation (FRAM) : kg m-2 : FICEAC
12	Type of generating process	2	Forecast
13	Background generating process identifier	255
14	Forecast generating process identifier	104	National Blend GRIB
15-16	Hours after reference time data cutoff	65535
17	Minutes after reference time data cutoff	255
18	Indicator of unit of time range	1	Hour
19-22	Forecast time in units defined by octet 18	varies
23	Type of first fixed surface	1	Ground or Water Surface
24	Scale factor of first fixed surface	0
25-28	Scaled value of first fixed surface	0
29	Type of second fixed surfaced	255	Missing
30	Scale factor of second fixed surface	0
31-34	Scaled value of second fixed surfaces	0
35	Forecast probability number	255
36	Total number of forecast probabilities	255
37	Probability Type	1	Probability of event above upper limit
38	Scale factor of lower limit	255
39-42	Scaled value of lower limit	255
43	Scale factor of upper limit	3
44-47	Scaled value of upper limit	254
48-49	Year of end of overall time interval	varies
50	Month of end of overall time interval	varies
51	Day of end of overall time interval	varies
52	Hour of end of overall time interval	varies
53	Minute of end of overall time interval	varies
54	Second of end of overall time interval	varies
55	nnumber of time ranges specifications describing the time intervals used to calculate the statistically-processed field	1
56-59	Total number of data values missing in the statistical process	0
60	Statistical process used to calculate the processed field from the field at each time increment during the time range	1	Accumulation(see Note 1)
61	Type of time increment between successive fields used in the statistical processing	2	Successive times processed have same start time of forecast, forecast time is incremented.
62	Indicator of unit of time for time range over which statistical processing is done	1	Hour
63-66	Length of the time range over which statistical processing is done, in units defined by the previous octet	72
67	Indicator of unit of time for the increment between the successive fields used	1	Hour
68-71	Time increment between successive fields, in units defined by the previous octet	0

llturb

octet(s)	content	value	meaning	notes
1-4	length of section in octets	34
5	section number	4
6-7	Number of coordinate values after template	0	no vertical discretization has occured for this data
8-9	product template	0	Analysis or forecast at a horizontal level or in a horizontal layer at a point in time
10	Parameter category	19	Physical atmospheric properties
11	Parameter number	10	Turbulence : (See Table 4.208 for units) : TURB
12	Type of generating process	2	Forecast
13	Background generating process identifier	255
14	Analysis or forecast generating process identified	104	National Blend GRIB
15-16	Hours of observational data cutoff after reference time	65535
17	Minutes of observational data cutoff after reference time	255
18	Indicator of unit of time range	1	Hour
19-22	Forecast time in units defined by octet 18	varies
23	Type of first fixed surface	1	Ground or Water Surface
24	Scale factor of first fixed surface	0
25-28	Scaled value of first fixed surface	0
29	Type of second fixed surfaced	103	Specified Height Level Above Ground : m
30	Scale factor of second fixed surface	0
31-34	Scaled value of second fixed surfaces	1372

llwsdir

octet(s)	content	value	meaning	notes
1-4	length of section in octets	34
5	section number	4
6-7	Number of coordinate values after template	0	no vertical discretization has occured for this data
8-9	product template	0	Analysis or forecast at a horizontal level or in a horizontal layer at a point in time
10	Parameter category	2	Momentum
11	Parameter number	0	Wind Direction (from which blowing) : WDIR
12	Type of generating process	2	Forecast
13	Background generating process identifier	255
14	Analysis or forecast generating process identified	104	National Blend GRIB
15-16	Hours of observational data cutoff after reference time	65535
17	Minutes of observational data cutoff after reference time	255
18	Indicator of unit of time range	1	Hour
19-22	Forecast time in units defined by octet 18	varies
23	Type of first fixed surface	1	Ground or Water Surface
24	Scale factor of first fixed surface	0
25-28	Scaled value of first fixed surface	0
29	Type of second fixed surfaced	103	Specified Height Level Above Ground : m
30	Scale factor of second fixed surface	0
31-34	Scaled value of second fixed surfaces	610

llwshgt

octet(s)	content	value	meaning	notes
1-4	length of section in octets	34
5	section number	4
6-7	Number of coordinate values after template	0	no vertical discretization has occured for this data
8-9	product template	0	Analysis or forecast at a horizontal level or in a horizontal layer at a point in time
10	Parameter category	3	Mass
11	Parameter number	6	Geometric Height : m : DIST
12	Type of generating process	2	Forecast
13	Background generating process identifier	255
14	Analysis or forecast generating process identified	104	National Blend GRIB
15-16	Hours of observational data cutoff after reference time	65535
17	Minutes of observational data cutoff after reference time	255
18	Indicator of unit of time range	1	Hour
19-22	Forecast time in units defined by octet 18	varies
23	Type of first fixed surface	1	Ground or Water Surface
24	Scale factor of first fixed surface	0
25-28	Scaled value of first fixed surface	0
29	Type of second fixed surfaced	103	Specified Height Level Above Ground : m
30	Scale factor of second fixed surface	0
31-34	Scaled value of second fixed surfaces	610

llwsspd

octet(s)	content	value	meaning	notes
1-4	length of section in octets	34
5	section number	4
6-7	Number of coordinate values after template	0	no vertical discretization has occured for this data
8-9	product template	0	Analysis or forecast at a horizontal level or in a horizontal layer at a point in time
10	Parameter category	2	Momentum
11	Parameter number	1	Wind Speed : m s-1 : WIND
12	Type of generating process	2	Forecast
13	Background generating process identifier	255
14	Analysis or forecast generating process identified	104	National Blend GRIB
15-16	Hours of observational data cutoff after reference time	65535
17	Minutes of observational data cutoff after reference time	255
18	Indicator of unit of time range	1	Hour
19-22	Forecast time in units defined by octet 18	varies
23	Type of first fixed surface	1	Ground or Water Surface
24	Scale factor of first fixed surface	0
25-28	Scaled value of first fixed surface	0
29	Type of second fixed surfaced	103	Specified Height Level Above Ground : m
30	Scale factor of second fixed surface	0
31-34	Scaled value of second fixed surfaces	610

maxffwi

octet(s)	content	value	meaning	notes
1-4	length of section in octets	58
5	section number	4
6-7	Number of coordinate values after template	0	no vertical discretization has occured for this data
8-9	product template	8	Average, accumulation, extreme values or other statistically processed values at a horizontal level or in a horizontal layer in a continuous or non-continuous time interval
10	Parameter category	4	Short-wave radiation
11	Parameter number	4	Brightness Temperature : K : BRTMP
12	Type of generating process	2	Forecast
13	Background generating process identifier	255
14	Analysis or forecast generating process identified	104	National Blend GRIB
15-16	Hours after reference time data cutoff	65535
17	Minutes after reference time data cutoff	255
18	Indicator of unit of time range	1	Hour
19-22	Forecast time in units defined by octet 18	varies
23	Type of first fixed surface	1	Ground or Water Surface
24	Scale factor of first fixed surface	0
25-28	Scaled value of first fixed surface	2
29	Type of second fixed surfaced	255	Missing
30	Scale factor of second fixed surface	0
31-34	Scaled value of second fixed surfaces	0
35-36	YearTime of end of overall time interval	varies
37	MonthTime of end of overall time interval	varies
38	DayTime of end of overall time interval	varies
39	HourTime of end of overall time interval	varies
40	MinuteTime of end of overall time interval	varies
41	SecondTime of end of overall time interval	varies
42	n - number of time ranges specifications describing the time intervals used to calculate the statistically-processed field	1
43-46	Total number of data values missing in statistical process	0
47	Statistical process used to calculate the processed field from the field at each time increment during the time range	2	Maximum
48	Type of time increment between successive fields used in the statistical processing	2	Successive times processed have same start time of forecast, forecast time is incremented.
49	Indicator of unit of time for time range over which statistical processing is done	1	Hour
50-53	Length of the time range over which statistical processing is done, in units defined by the previous octet	6
54	Indicator of unit of time for the increment between the successive fields used	1	Hour
55-58	Time increment between successive fields, in units defined by the previous octet	0

maxhi

octet(s)	content	value	meaning	notes
1-4	length of section in octets	58
5	section number	4
6-7	Number of coordinate values after template	0	no vertical discretization has occured for this data
8-9	product template	8	Average, accumulation, extreme values or other statistically processed values at a horizontal level or in a horizontal layer in a continuous or non-continuous time interval
10	Parameter category	4	Short-wave radiation
11	Parameter number	2	Short-Wave Radiation Flux* : W m-2 : SWAVR
12	Type of generating process	2	Forecast
13	Background generating process identifier	255
14	Analysis or forecast generating process identified	104	National Blend GRIB
15-16	Hours after reference time data cutoff	65535
17	Minutes after reference time data cutoff	255
18	Indicator of unit of time range	1	Hour
19-22	Forecast time in units defined by octet 18	varies
23	Type of first fixed surface	200	Entire atmosphere (considered as a single layer)
24	Scale factor of first fixed surface	0
25-28	Scaled value of first fixed surface	0
29	Type of second fixed surfaced	255	Missing
30	Scale factor of second fixed surface	0
31-34	Scaled value of second fixed surfaces	0
35-36	YearTime of end of overall time interval	varies
37	MonthTime of end of overall time interval	varies
38	DayTime of end of overall time interval	varies
39	HourTime of end of overall time interval	varies
40	MinuteTime of end of overall time interval	varies
41	SecondTime of end of overall time interval	varies
42	n - number of time ranges specifications describing the time intervals used to calculate the statistically-processed field	1
43-46	Total number of data values missing in statistical process	0
47	Statistical process used to calculate the processed field from the field at each time increment during the time range	2	Maximum
48	Type of time increment between successive fields used in the statistical processing	2	Successive times processed have same start time of forecast, forecast time is incremented.
49	Indicator of unit of time for time range over which statistical processing is done	1	Hour
50-53	Length of the time range over which statistical processing is done, in units defined by the previous octet	6
54	Indicator of unit of time for the increment between the successive fields used	1	Hour
55-58	Time increment between successive fields, in units defined by the previous octet	0

maxref

octet(s)	content	value	meaning	notes
1-4	length of section in octets	58
5	section number	4
6-7	Number of coordinate values after template	0	no vertical discretization has occured for this data
8-9	product template	8	Average, accumulation, extreme values or other statistically processed values at a horizontal level or in a horizontal layer in a continuous or non-continuous time interval
10	Parameter category	16	Forecast Radar Imagery
11	Parameter number	198	Hourly Maximum of Simulated Reflectivity : dB : MAXREF
12	Type of generating process	2	Forecast
13	Background generating process identifier	255
14	Analysis or forecast generating process identified	104	National Blend GRIB
15-16	Hours after reference time data cutoff	65535
17	Minutes after reference time data cutoff	255
18	Indicator of unit of time range	1	Hour
19-22	Forecast time in units defined by octet 18	varies
23	Type of first fixed surface	103	Specified Height Level Above Ground : m
24	Scale factor of first fixed surface	0
25-28	Scaled value of first fixed surface	1000
29	Type of second fixed surfaced	255	Missing
30	Scale factor of second fixed surface	0
31-34	Scaled value of second fixed surfaces	0
35-36	YearTime of end of overall time interval	varies
37	MonthTime of end of overall time interval	varies
38	DayTime of end of overall time interval	varies
39	HourTime of end of overall time interval	varies
40	MinuteTime of end of overall time interval	varies
41	SecondTime of end of overall time interval	varies
42	n - number of time ranges specifications describing the time intervals used to calculate the statistically-processed field	1
43-46	Total number of data values missing in statistical process	0
47	Statistical process used to calculate the processed field from the field at each time increment during the time range	2	Maximum
48	Type of time increment between successive fields used in the statistical processing	2	Successive times processed have same start time of forecast, forecast time is incremented.
49	Indicator of unit of time for time range over which statistical processing is done	1	Hour
50-53	Length of the time range over which statistical processing is done, in units defined by the previous octet	1
54	Indicator of unit of time for the increment between the successive fields used	1	Hour
55-58	Time increment between successive fields, in units defined by the previous octet	0

maxrh

octet(s)	content	value	meaning	notes
1-4	length of section in octets	58
5	section number	4
6-7	Number of coordinate values after template	0	no vertical discretization has occured for this data
8-9	product template	8	Average, accumulation, extreme values or other statistically processed values at a horizontal level or in a horizontal layer in a continuous or non-continuous time interval
10	Parameter category	1	Moisture
11	Parameter number	27	Maximum Relative Humidity * : % : MAXRH
12	Type of generating process	2	Forecast
13	Background generating process identifier	255
14	Analysis or forecast generating process identified	104	National Blend GRIB
15-16	Hours after reference time data cutoff	65535
17	Minutes after reference time data cutoff	255
18	Indicator of unit of time range	1	Hour
19-22	Forecast time in units defined by octet 18	varies
23	Type of first fixed surface	103	Specified Height Level Above Ground : m
24	Scale factor of first fixed surface	0
25-28	Scaled value of first fixed surface	2
29	Type of second fixed surfaced	255	Missing
30	Scale factor of second fixed surface	0
31-34	Scaled value of second fixed surfaces	0
35-36	YearTime of end of overall time interval	varies
37	MonthTime of end of overall time interval	varies
38	DayTime of end of overall time interval	varies
39	HourTime of end of overall time interval	varies
40	MinuteTime of end of overall time interval	varies
41	SecondTime of end of overall time interval	varies
42	n - number of time ranges specifications describing the time intervals used to calculate the statistically-processed field	1
43-46	Total number of data values missing in statistical process	0
47	Statistical process used to calculate the processed field from the field at each time increment during the time range	2	Maximum
48	Type of time increment between successive fields used in the statistical processing	2	Successive times processed have same start time of forecast, forecast time is incremented.
49	Indicator of unit of time for time range over which statistical processing is done	1	Hour
50-53	Length of the time range over which statistical processing is done, in units defined by the previous octet	12
54	Indicator of unit of time for the increment between the successive fields used	1	Hour
55-58	Time increment between successive fields, in units defined by the previous octet	0

maxt

octet(s)	content	value	meaning	notes
1-4	length of section in octets	58
5	section number	4
6-7	Number of coordinate values after template	0	no vertical discretization has occured for this data
8-9	product template	8	Average, accumulation, extreme values or other statistically processed values at a horizontal level or in a horizontal layer in a continuous or non-continuous time interval
10	Parameter category	0	Temperature
11	Parameter number	4	Maximum Temperature* : K : TMAX
12	Type of generating process	2	Forecast
13	Background generating process identifier	255
14	Analysis or forecast generating process identified	104	National Blend GRIB
15-16	Hours after reference time data cutoff	65535
17	Minutes after reference time data cutoff	255
18	Indicator of unit of time range	1	Hour
19-22	Forecast time in units defined by octet 18	varies
23	Type of first fixed surface	103	Specified Height Level Above Ground : m
24	Scale factor of first fixed surface	0
25-28	Scaled value of first fixed surface	2
29	Type of second fixed surfaced	255	Missing
30	Scale factor of second fixed surface	0
31-34	Scaled value of second fixed surfaces	0
35-36	YearTime of end of overall time interval	varies
37	MonthTime of end of overall time interval	varies
38	DayTime of end of overall time interval	varies
39	HourTime of end of overall time interval	varies
40	MinuteTime of end of overall time interval	varies
41	SecondTime of end of overall time interval	varies
42	n - number of time ranges specifications describing the time intervals used to calculate the statistically-processed field	1
43-46	Total number of data values missing in statistical process	0
47	Statistical process used to calculate the processed field from the field at each time increment during the time range	2	Maximum
48	Type of time increment between successive fields used in the statistical processing	2	Successive times processed have same start time of forecast, forecast time is incremented.
49	Indicator of unit of time for time range over which statistical processing is done	1	Hour
50-53	Length of the time range over which statistical processing is done, in units defined by the previous octet	12
54	Indicator of unit of time for the increment between the successive fields used	1	Hour
55-58	Time increment between successive fields, in units defined by the previous octet	0

mixhgt

octet(s)	content	value	meaning	notes
1-4	length of section in octets	34
5	section number	4
6-7	Number of coordinate values after template	0	no vertical discretization has occured for this data
8-9	product template	0	Analysis or forecast at a horizontal level or in a horizontal layer at a point in time
10	Parameter category	19	Physical atmospheric properties
11	Parameter number	3	Mixed Layer Depth : m : MIXHT
12	Type of generating process	2	Forecast
13	Background generating process identifier	255
14	Analysis or forecast generating process identified	104	National Blend GRIB
15-16	Hours of observational data cutoff after reference time	65535
17	Minutes of observational data cutoff after reference time	255
18	Indicator of unit of time range	1	Hour
19-22	Forecast time in units defined by octet 18	varies
23	Type of first fixed surface	200	Entire atmosphere (considered as a single layer)
24	Scale factor of first fixed surface	0
25-28	Scaled value of first fixed surface	0
29	Type of second fixed surfaced	255	Missing
30	Scale factor of second fixed surface	0
31-34	Scaled value of second fixed surfaces	0

mslp_cdf-50p

octet(s)	content	value	meaning	notes
1-4	length of section in octets	35
5	section number	4
6-7	Number of coordinate values after template	0	no vertical discretization has occured for this data
8-9	product template	6	Percentile forecasts at a horizontal level or in a horizontal layer at a point in time
10	Parameter category	3	Mass
11	Parameter number	1	Pressure Reduced to MSL : Pa : PRMSL
12	Type of generating process	2	Forecast
13	Background generating process identifier	255
14	Forecast generating process identified	104	National Blend GRIB
15-16	Hours after reference time data cutoff	65535
17	Minutes after reference time data cutoff	255
18	Indicator of unit of time range	1	Hour
19-22	Forecast time in units defined by octet 18	varies
23	Type of first fixed surface	101	Mean Sea Level
24	Scale factor of first fixed surface	0
25-28	Scaled value of first fixed surface	0
29	Type of second fixed surfaced	255	Missing
30	Scale factor of second fixed surface	0
31-34	Scaled value of second fixed surfaces	0
35	Percentile value	50

mxwbalft

octet(s)	content	value	meaning	notes
1-4	length of section in octets	37
5	section number	4
6-7	Number of coordinate values after template	0	no vertical discretization has occured for this data
8-9	product template	15	Average, accumulation, extreme values or other statistically-processed values over a spatial area at a horizontal level or in a horizontal layer at a point in time
10	Parameter category	0	Temperature
11	Parameter number	27	Wet Bulb Temperature : K : WETBT
12	Type of generating process	2	Forecast
13	Background generating process identifier	255
14	Analysis or forecast generating process identified	104	National Blend GRIB
15-16	Hours after reference time data cutoff	65535
17	Minutes after reference time data cutoff	255
18	Indicator of unit of time range	1	Hour
19-22	Forecast time in units defined by octet 18	varies
23	Type of first fixed surface	103	Specified Height Level Above Ground : m
24	Scale factor of first fixed surface	0
25-28	Scaled value of first fixed surface	610
29	Type of second fixed surfaced	100	Isobaric Surface : Pa
30	Scale factor of second fixed surface	0
31-34	Scaled value of second fixed surfaces	40000
35	Statistical process used within the spatial area defined by octet 36	241	NotFound
36	Type of spatial processing used to arrive at given data value from source data	241	NotFound
37	Number of data points used in spatial processing defined in octet 36	241

negengy

octet(s)	content	value	meaning	notes
1-4	length of section in octets	34
5	section number	4
6-7	Number of coordinate values after template	0	no vertical discretization has occured for this data
8-9	product template	0	Analysis or forecast at a horizontal level or in a horizontal layer at a point in time
10	Parameter category	7	Thermodynamic Stability indicies
11	Parameter number	201	Bourgoiun Negative Energy Layer (surface to freezing level) : J kg-1 : BNEGELAY
12	Type of generating process	2	Forecast
13	Background generating process identifier	255
14	Analysis or forecast generating process identified	104	National Blend GRIB
15-16	Hours of observational data cutoff after reference time	65535
17	Minutes of observational data cutoff after reference time	255
18	Indicator of unit of time range	1	Hour
19-22	Forecast time in units defined by octet 18	varies
23	Type of first fixed surface	1	Ground or Water Surface
24	Scale factor of first fixed surface	0
25-28	Scaled value of first fixed surface	0
29	Type of second fixed surfaced	4	Level of 0oC Isotherm
30	Scale factor of second fixed surface	0
31-34	Scaled value of second fixed surfaces	0

pdur

octet(s)	content	value	meaning	notes
1-4	length of section in octets	58
5	section number	4
6-7	Number of coordinate values after template	0	no vertical discretization has occured for this data
8-9	product template	8	Average, accumulation, extreme values or other statistically processed values at a horizontal level or in a horizontal layer in a continuous or non-continuous time interval
10	Parameter category	1	Moisture
11	Parameter number	234	Precipitation Duration : hour : PCPDUR
12	Type of generating process	2	Forecast
13	Background generating process identifier	255
14	Analysis or forecast generating process identified	104	National Blend GRIB
15-16	Hours after reference time data cutoff	65535
17	Minutes after reference time data cutoff	255
18	Indicator of unit of time range	1	Hour
19-22	Forecast time in units defined by octet 18	varies
23	Type of first fixed surface	1	Ground or Water Surface
24	Scale factor of first fixed surface	0
25-28	Scaled value of first fixed surface	0
29	Type of second fixed surfaced	255	Missing
30	Scale factor of second fixed surface	0
31-34	Scaled value of second fixed surfaces	0
35-36	YearTime of end of overall time interval	varies
37	MonthTime of end of overall time interval	varies
38	DayTime of end of overall time interval	varies
39	HourTime of end of overall time interval	varies
40	MinuteTime of end of overall time interval	varies
41	SecondTime of end of overall time interval	varies
42	n - number of time ranges specifications describing the time intervals used to calculate the statistically-processed field	1
43-46	Total number of data values missing in statistical process	0
47	Statistical process used to calculate the processed field from the field at each time increment during the time range	1	Accumulation(see Note 1)
48	Type of time increment between successive fields used in the statistical processing	2	Successive times processed have same start time of forecast, forecast time is incremented.
49	Indicator of unit of time for time range over which statistical processing is done	1	Hour
50-53	Length of the time range over which statistical processing is done, in units defined by the previous octet	12
54	Indicator of unit of time for the increment between the successive fields used	1	Hour
55-58	Time increment between successive fields, in units defined by the previous octet	0

pop06

octet(s)	content	value	meaning	notes
1-4	length of section in octets	71
5	section number	4
6-7	Number of coordinate values after template	0	no vertical discretization has occured for this data
8-9	product template	9	Probability forecasts at a horizontal level or in a horizontal layer in a continuous or non-continuous time interval
10	Parameter category	1	Moisture
11	Parameter number	8	Total Precipitation *** : kg m-2 : APCP
12	Type of generating process	2	Forecast
13	Background generating process identifier	255
14	Forecast generating process identifier	104	National Blend GRIB
15-16	Hours after reference time data cutoff	65535
17	Minutes after reference time data cutoff	255
18	Indicator of unit of time range	1	Hour
19-22	Forecast time in units defined by octet 18	varies
23	Type of first fixed surface	1	Ground or Water Surface
24	Scale factor of first fixed surface	0
25-28	Scaled value of first fixed surface	0
29	Type of second fixed surfaced	255	Missing
30	Scale factor of second fixed surface	0
31-34	Scaled value of second fixed surfaces	0
35	Forecast probability number	255
36	Total number of forecast probabilities	255
37	Probability Type	1	Probability of event above upper limit
38	Scale factor of lower limit	255
39-42	Scaled value of lower limit	255
43	Scale factor of upper limit	3
44-47	Scaled value of upper limit	254
48-49	Year of end of overall time interval	varies
50	Month of end of overall time interval	varies
51	Day of end of overall time interval	varies
52	Hour of end of overall time interval	varies
53	Minute of end of overall time interval	varies
54	Second of end of overall time interval	varies
55	nnumber of time ranges specifications describing the time intervals used to calculate the statistically-processed field	1
56-59	Total number of data values missing in the statistical process	0
60	Statistical process used to calculate the processed field from the field at each time increment during the time range	1	Accumulation(see Note 1)
61	Type of time increment between successive fields used in the statistical processing	2	Successive times processed have same start time of forecast, forecast time is incremented.
62	Indicator of unit of time for time range over which statistical processing is done	1	Hour
63-66	Length of the time range over which statistical processing is done, in units defined by the previous octet	6
67	Indicator of unit of time for the increment between the successive fields used	1	Hour
68-71	Time increment between successive fields, in units defined by the previous octet	0

posengy

octet(s)	content	value	meaning	notes
1-4	length of section in octets	34
5	section number	4
6-7	Number of coordinate values after template	0	no vertical discretization has occured for this data
8-9	product template	0	Analysis or forecast at a horizontal level or in a horizontal layer at a point in time
10	Parameter category	7	Thermodynamic Stability indicies
11	Parameter number	202	Bourgoiun Positive Energy Layer (2k ft AGL to 400 hPa) : J kg-1 : BPOSELAY
12	Type of generating process	2	Forecast
13	Background generating process identifier	255
14	Analysis or forecast generating process identified	104	National Blend GRIB
15-16	Hours of observational data cutoff after reference time	65535
17	Minutes of observational data cutoff after reference time	255
18	Indicator of unit of time range	1	Hour
19-22	Forecast time in units defined by octet 18	varies
23	Type of first fixed surface	103	Specified Height Level Above Ground : m
24	Scale factor of first fixed surface	0
25-28	Scaled value of first fixed surface	610
29	Type of second fixed surfaced	100	Isobaric Surface : Pa
30	Scale factor of second fixed surface	0
31-34	Scaled value of second fixed surfaces	40000

prb0p25frzn

octet(s)	content	value	meaning	notes
1-4	length of section in octets	71
5	section number	4
6-7	Number of coordinate values after template	0	no vertical discretization has occured for this data
8-9	product template	9	Probability forecasts at a horizontal level or in a horizontal layer in a continuous or non-continuous time interval
10	Parameter category	1	Moisture
11	Parameter number	53	Total Snowfall Rate Water Equivalent ** : kg m-2s-1 : TSRWE
12	Type of generating process	2	Forecast
13	Background generating process identifier	255
14	Forecast generating process identifier	104	National Blend GRIB
15-16	Hours after reference time data cutoff	65535
17	Minutes after reference time data cutoff	255
18	Indicator of unit of time range	1	Hour
19-22	Forecast time in units defined by octet 18	varies
23	Type of first fixed surface	1	Ground or Water Surface
24	Scale factor of first fixed surface	0
25-28	Scaled value of first fixed surface	0
29	Type of second fixed surfaced	255	Missing
30	Scale factor of second fixed surface	0
31-34	Scaled value of second fixed surfaces	0
35	Forecast probability number	255
36	Total number of forecast probabilities	255
37	Probability Type	1	Probability of event above upper limit
38	Scale factor of lower limit	255
39-42	Scaled value of lower limit	255
43	Scale factor of upper limit	7
44-47	Scaled value of upper limit	735
48-49	Year of end of overall time interval	varies
50	Month of end of overall time interval	varies
51	Day of end of overall time interval	varies
52	Hour of end of overall time interval	varies
53	Minute of end of overall time interval	varies
54	Second of end of overall time interval	varies
55	nnumber of time ranges specifications describing the time intervals used to calculate the statistically-processed field	1
56-59	Total number of data values missing in the statistical process	0
60	Statistical process used to calculate the processed field from the field at each time increment during the time range	1	Accumulation(see Note 1)
61	Type of time increment between successive fields used in the statistical processing	2	Successive times processed have same start time of forecast, forecast time is incremented.
62	Indicator of unit of time for time range over which statistical processing is done	1	Hour
63-66	Length of the time range over which statistical processing is done, in units defined by the previous octet	24
67	Indicator of unit of time for the increment between the successive fields used	1	Hour
68-71	Time increment between successive fields, in units defined by the previous octet	0

predomwx

octet(s)	content	value	meaning	notes
1-4	length of section in octets	34
5	section number	4
6-7	Number of coordinate values after template	0	no vertical discretization has occured for this data
8-9	product template	0	Analysis or forecast at a horizontal level or in a horizontal layer at a point in time
10	Parameter category	1	Moisture
11	Parameter number	226	Pblackominant Weather (see Note 1) : Numeric : PWTHER
12	Type of generating process	2	Forecast
13	Background generating process identifier	255
14	Analysis or forecast generating process identified	104	National Blend GRIB
15-16	Hours of observational data cutoff after reference time	65535
17	Minutes of observational data cutoff after reference time	255
18	Indicator of unit of time range	1	Hour
19-22	Forecast time in units defined by octet 18	varies
23	Type of first fixed surface	1	Ground or Water Surface
24	Scale factor of first fixed surface	0
25-28	Scaled value of first fixed surface	0
29	Type of second fixed surfaced	0	Reserved
30	Scale factor of second fixed surface	0
31-34	Scaled value of second fixed surfaces	0

prfzrn

octet(s)	content	value	meaning	notes
1-4	length of section in octets	47
5	section number	4
6-7	Number of coordinate values after template	0	no vertical discretization has occured for this data
8-9	product template	5	Probability forecasts at a horizontal level or in a horizontal layer at a point in time
10	Parameter category	1	Moisture
11	Parameter number	19	Precipitation Type : (See Table 4.201 for units) : PTYPE
12	Type of generating process	2	Forecast
13	Background generating process identifier	255
14	Forecast generating process identified	104	National Blend GRIB
15-16	Hours after reference time data cutoff	65535
17	Minutes after reference time data cutoff	255
18	Indicator of unit of time range	1	Hour
19-22	Forecast time in units defined by octet 18	varies
23	Type of first fixed surface	1	Ground or Water Surface
24	Scale factor of first fixed surface	0
25-28	Scaled value of first fixed surface	0
29	Type of second fixed surfaced	255	Missing
30	Scale factor of second fixed surface	0
31-34	Scaled value of second fixed surfaces	0
35	Forecastprobability number	1
36	Total number of forecast probabilities	1
37	Probability type	2	Probability of event between upper and lower limits (the range includes lower limit but no the upper limit)
38	Scale factor of lower limit	0
39-42	Scaled value of lower limit	3
43	Scale factor of upper limit	0
44-47	Scaled value ofupper limit	4

probiceprsnt

octet(s)	content	value	meaning	notes
1-4	length of section in octets	47
5	section number	4
6-7	Number of coordinate values after template	0	no vertical discretization has occured for this data
8-9	product template	5	Probability forecasts at a horizontal level or in a horizontal layer at a point in time
10	Parameter category	1	Moisture
11	Parameter number	232	Probability Cloud Ice Present : % : PROBCIP
12	Type of generating process	2	Forecast
13	Background generating process identifier	255
14	Forecast generating process identified	104	National Blend GRIB
15-16	Hours after reference time data cutoff	65535
17	Minutes after reference time data cutoff	255
18	Indicator of unit of time range	1	Hour
19-22	Forecast time in units defined by octet 18	varies
23	Type of first fixed surface	10	Entire Atmosphere
24	Scale factor of first fixed surface	0
25-28	Scaled value of first fixed surface	0
29	Type of second fixed surfaced	255	Missing
30	Scale factor of second fixed surface	0
31-34	Scaled value of second fixed surfaces	0
35	Forecastprobability number	1
36	Total number of forecast probabilities	1
37	Probability type	3	Probability of event above lower limit
38	Scale factor of lower limit	0
39-42	Scaled value of lower limit	0
43	Scale factor of upper limit	255
44-47	Scaled value ofupper limit	255

probrefzslt

octet(s)	content	value	meaning	notes
1-4	length of section in octets	47
5	section number	4
6-7	Number of coordinate values after template	0	no vertical discretization has occured for this data
8-9	product template	5	Probability forecasts at a horizontal level or in a horizontal layer at a point in time
10	Parameter category	1	Moisture
11	Parameter number	19	Precipitation Type : (See Table 4.201 for units) : PTYPE
12	Type of generating process	2	Forecast
13	Background generating process identifier	255
14	Forecast generating process identified	104	National Blend GRIB
15-16	Hours after reference time data cutoff	65535
17	Minutes after reference time data cutoff	255
18	Indicator of unit of time range	1	Hour
19-22	Forecast time in units defined by octet 18	varies
23	Type of first fixed surface	10	Entire Atmosphere
24	Scale factor of first fixed surface	0
25-28	Scaled value of first fixed surface	0
29	Type of second fixed surfaced	255	Missing
30	Scale factor of second fixed surface	0
31-34	Scaled value of second fixed surfaces	0
35	Forecastprobability number	1
36	Total number of forecast probabilities	1
37	Probability type	2	Probability of event between upper and lower limits (the range includes lower limit but no the upper limit)
38	Scale factor of lower limit	0
39-42	Scaled value of lower limit	8
43	Scale factor of upper limit	0
44-47	Scaled value ofupper limit	9

prrain

octet(s)	content	value	meaning	notes
1-4	length of section in octets	47
5	section number	4
6-7	Number of coordinate values after template	0	no vertical discretization has occured for this data
8-9	product template	5	Probability forecasts at a horizontal level or in a horizontal layer at a point in time
10	Parameter category	1	Moisture
11	Parameter number	19	Precipitation Type : (See Table 4.201 for units) : PTYPE
12	Type of generating process	2	Forecast
13	Background generating process identifier	255
14	Forecast generating process identified	104	National Blend GRIB
15-16	Hours after reference time data cutoff	65535
17	Minutes after reference time data cutoff	255
18	Indicator of unit of time range	1	Hour
19-22	Forecast time in units defined by octet 18	varies
23	Type of first fixed surface	1	Ground or Water Surface
24	Scale factor of first fixed surface	0
25-28	Scaled value of first fixed surface	0
29	Type of second fixed surfaced	255	Missing
30	Scale factor of second fixed surface	0
31-34	Scaled value of second fixed surfaces	0
35	Forecastprobability number	1
36	Total number of forecast probabilities	1
37	Probability type	2	Probability of event between upper and lower limits (the range includes lower limit but no the upper limit)
38	Scale factor of lower limit	0
39-42	Scaled value of lower limit	1
43	Scale factor of upper limit	0
44-47	Scaled value ofupper limit	2

prsleet

octet(s)	content	value	meaning	notes
1-4	length of section in octets	47
5	section number	4
6-7	Number of coordinate values after template	0	no vertical discretization has occured for this data
8-9	product template	5	Probability forecasts at a horizontal level or in a horizontal layer at a point in time
10	Parameter category	1	Moisture
11	Parameter number	19	Precipitation Type : (See Table 4.201 for units) : PTYPE
12	Type of generating process	2	Forecast
13	Background generating process identifier	255
14	Forecast generating process identified	104	National Blend GRIB
15-16	Hours after reference time data cutoff	65535
17	Minutes after reference time data cutoff	255
18	Indicator of unit of time range	1	Hour
19-22	Forecast time in units defined by octet 18	varies
23	Type of first fixed surface	1	Ground or Water Surface
24	Scale factor of first fixed surface	0
25-28	Scaled value of first fixed surface	0
29	Type of second fixed surfaced	255	Missing
30	Scale factor of second fixed surface	0
31-34	Scaled value of second fixed surfaces	0
35	Forecastprobability number	1
36	Total number of forecast probabilities	1
37	Probability type	2	Probability of event between upper and lower limits (the range includes lower limit but no the upper limit)
38	Scale factor of lower limit	0
39-42	Scaled value of lower limit	8
43	Scale factor of upper limit	0
44-47	Scaled value ofupper limit	9

prsnow

octet(s)	content	value	meaning	notes
1-4	length of section in octets	47
5	section number	4
6-7	Number of coordinate values after template	0	no vertical discretization has occured for this data
8-9	product template	5	Probability forecasts at a horizontal level or in a horizontal layer at a point in time
10	Parameter category	1	Moisture
11	Parameter number	19	Precipitation Type : (See Table 4.201 for units) : PTYPE
12	Type of generating process	2	Forecast
13	Background generating process identifier	255
14	Forecast generating process identified	104	National Blend GRIB
15-16	Hours after reference time data cutoff	65535
17	Minutes after reference time data cutoff	255
18	Indicator of unit of time range	1	Hour
19-22	Forecast time in units defined by octet 18	varies
23	Type of first fixed surface	1	Ground or Water Surface
24	Scale factor of first fixed surface	0
25-28	Scaled value of first fixed surface	0
29	Type of second fixed surfaced	255	Missing
30	Scale factor of second fixed surface	0
31-34	Scaled value of second fixed surfaces	0
35	Forecastprobability number	1
36	Total number of forecast probabilities	1
37	Probability type	2	Probability of event between upper and lower limits (the range includes lower limit but no the upper limit)
38	Scale factor of lower limit	0
39-42	Scaled value of lower limit	5
43	Scale factor of upper limit	0
44-47	Scaled value ofupper limit	7

ptstm06

octet(s)	content	value	meaning	notes
1-4	length of section in octets	58
5	section number	4
6-7	Number of coordinate values after template	0	no vertical discretization has occured for this data
8-9	product template	8	Average, accumulation, extreme values or other statistically processed values at a horizontal level or in a horizontal layer in a continuous or non-continuous time interval
10	Parameter category	19	Physical atmospheric properties
11	Parameter number	2	Thunderstorm Probability : % : TSTM
12	Type of generating process	5	Probability Forecast
13	Background generating process identifier	255
14	Analysis or forecast generating process identified	104	National Blend GRIB
15-16	Hours after reference time data cutoff	65535
17	Minutes after reference time data cutoff	255
18	Indicator of unit of time range	1	Hour
19-22	Forecast time in units defined by octet 18	varies
23	Type of first fixed surface	1	Ground or Water Surface
24	Scale factor of first fixed surface	0
25-28	Scaled value of first fixed surface	0
29	Type of second fixed surfaced	255	Missing
30	Scale factor of second fixed surface	0
31-34	Scaled value of second fixed surfaces	0
35-36	YearTime of end of overall time interval	varies
37	MonthTime of end of overall time interval	varies
38	DayTime of end of overall time interval	varies
39	HourTime of end of overall time interval	varies
40	MinuteTime of end of overall time interval	varies
41	SecondTime of end of overall time interval	varies
42	n - number of time ranges specifications describing the time intervals used to calculate the statistically-processed field	1
43-46	Total number of data values missing in statistical process	0
47	Statistical process used to calculate the processed field from the field at each time increment during the time range	1	Accumulation(see Note 1)
48	Type of time increment between successive fields used in the statistical processing	2	Successive times processed have same start time of forecast, forecast time is incremented.
49	Indicator of unit of time for time range over which statistical processing is done	1	Hour
50-53	Length of the time range over which statistical processing is done, in units defined by the previous octet	6
54	Indicator of unit of time for the increment between the successive fields used	1	Hour
55-58	Time increment between successive fields, in units defined by the previous octet	0

qpf06

octet(s)	content	value	meaning	notes
1-4	length of section in octets	58
5	section number	4
6-7	Number of coordinate values after template	0	no vertical discretization has occured for this data
8-9	product template	8	Average, accumulation, extreme values or other statistically processed values at a horizontal level or in a horizontal layer in a continuous or non-continuous time interval
10	Parameter category	1	Moisture
11	Parameter number	8	Total Precipitation *** : kg m-2 : APCP
12	Type of generating process	2	Forecast
13	Background generating process identifier	255
14	Analysis or forecast generating process identified	104	National Blend GRIB
15-16	Hours after reference time data cutoff	65535
17	Minutes after reference time data cutoff	255
18	Indicator of unit of time range	1	Hour
19-22	Forecast time in units defined by octet 18	varies
23	Type of first fixed surface	1	Ground or Water Surface
24	Scale factor of first fixed surface	0
25-28	Scaled value of first fixed surface	0
29	Type of second fixed surfaced	255	Missing
30	Scale factor of second fixed surface	0
31-34	Scaled value of second fixed surfaces	0
35-36	YearTime of end of overall time interval	varies
37	MonthTime of end of overall time interval	varies
38	DayTime of end of overall time interval	varies
39	HourTime of end of overall time interval	varies
40	MinuteTime of end of overall time interval	varies
41	SecondTime of end of overall time interval	varies
42	n - number of time ranges specifications describing the time intervals used to calculate the statistically-processed field	1
43-46	Total number of data values missing in statistical process	0
47	Statistical process used to calculate the processed field from the field at each time increment during the time range	1	Accumulation(see Note 1)
48	Type of time increment between successive fields used in the statistical processing	2	Successive times processed have same start time of forecast, forecast time is incremented.
49	Indicator of unit of time for time range over which statistical processing is done	1	Hour
50-53	Length of the time range over which statistical processing is done, in units defined by the previous octet	6
54	Indicator of unit of time for the increment between the successive fields used	1	Hour
55-58	Time increment between successive fields, in units defined by the previous octet	0

rh

octet(s)	content	value	meaning	notes
1-4	length of section in octets	34
5	section number	4
6-7	Number of coordinate values after template	0	no vertical discretization has occured for this data
8-9	product template	0	Analysis or forecast at a horizontal level or in a horizontal layer at a point in time
10	Parameter category	1	Moisture
11	Parameter number	1	Relative Humidity : % : RH
12	Type of generating process	2	Forecast
13	Background generating process identifier	255
14	Analysis or forecast generating process identified	104	National Blend GRIB
15-16	Hours of observational data cutoff after reference time	65535
17	Minutes of observational data cutoff after reference time	255
18	Indicator of unit of time range	1	Hour
19-22	Forecast time in units defined by octet 18	varies
23	Type of first fixed surface	103	Specified Height Level Above Ground : m
24	Scale factor of first fixed surface	0
25-28	Scaled value of first fixed surface	2
29	Type of second fixed surfaced	255	Missing
30	Scale factor of second fixed surface	0
31-34	Scaled value of second fixed surfaces	0

sigwv

octet(s)	content	value	meaning	notes
1-4	length of section in octets	34
5	section number	4
6-7	Number of coordinate values after template	0	no vertical discretization has occured for this data
8-9	product template	0	Analysis or forecast at a horizontal level or in a horizontal layer at a point in time
10	Parameter category	0	Temperature
11	Parameter number	3	Pseudo-Adiabatic Potential Temperature (or Equivalent Potential Temperature) : K : EPOT
12	Type of generating process	2	Forecast
13	Background generating process identifier	255
14	Analysis or forecast generating process identified	104	National Blend GRIB
15-16	Hours of observational data cutoff after reference time	65535
17	Minutes of observational data cutoff after reference time	255
18	Indicator of unit of time range	1	Hour
19-22	Forecast time in units defined by octet 18	varies
23	Type of first fixed surface	1	Ground or Water Surface
24	Scale factor of first fixed surface	0
25-28	Scaled value of first fixed surface	0
29	Type of second fixed surfaced	255	Missing
30	Scale factor of second fixed surface	0
31-34	Scaled value of second fixed surfaces	0

sky

octet(s)	content	value	meaning	notes
1-4	length of section in octets	34
5	section number	4
6-7	Number of coordinate values after template	0	no vertical discretization has occured for this data
8-9	product template	0	Analysis or forecast at a horizontal level or in a horizontal layer at a point in time
10	Parameter category	6	Cloud
11	Parameter number	1	Total Cloud Cover : % : TCDC
12	Type of generating process	2	Forecast
13	Background generating process identifier	255
14	Analysis or forecast generating process identified	104	National Blend GRIB
15-16	Hours of observational data cutoff after reference time	65535
17	Minutes of observational data cutoff after reference time	255
18	Indicator of unit of time range	1	Hour
19-22	Forecast time in units defined by octet 18	varies
23	Type of first fixed surface	1	Ground or Water Surface
24	Scale factor of first fixed surface	0
25-28	Scaled value of first fixed surface	0
29	Type of second fixed surfaced	255	Missing
30	Scale factor of second fixed surface	0
31-34	Scaled value of second fixed surfaces	0

slrblend

octet(s)	content	value	meaning	notes
1-4	length of section in octets	34
5	section number	4
6-7	Number of coordinate values after template	0	no vertical discretization has occured for this data
8-9	product template	0	Analysis or forecast at a horizontal level or in a horizontal layer at a point in time
10	Parameter category	1	Moisture
11	Parameter number	233	Snow Liquid ratio : kg kg-1 : SNOWLR
12	Type of generating process	2	Forecast
13	Background generating process identifier	255
14	Analysis or forecast generating process identified	104	National Blend GRIB
15-16	Hours of observational data cutoff after reference time	65535
17	Minutes of observational data cutoff after reference time	255
18	Indicator of unit of time range	1	Hour
19-22	Forecast time in units defined by octet 18	varies
23	Type of first fixed surface	1	Ground or Water Surface
24	Scale factor of first fixed surface	0
25-28	Scaled value of first fixed surface	0
29	Type of second fixed surfaced	255	Missing
30	Scale factor of second fixed surface	0
31-34	Scaled value of second fixed surfaces	0

snow06

octet(s)	content	value	meaning	notes
1-4	length of section in octets	58
5	section number	4
6-7	Number of coordinate values after template	0	no vertical discretization has occured for this data
8-9	product template	8	Average, accumulation, extreme values or other statistically processed values at a horizontal level or in a horizontal layer in a continuous or non-continuous time interval
10	Parameter category	1	Moisture
11	Parameter number	29	Total Snowfall *** : m : ASNOW
12	Type of generating process	2	Forecast
13	Background generating process identifier	255
14	Analysis or forecast generating process identified	104	National Blend GRIB
15-16	Hours after reference time data cutoff	65535
17	Minutes after reference time data cutoff	255
18	Indicator of unit of time range	1	Hour
19-22	Forecast time in units defined by octet 18	varies
23	Type of first fixed surface	1	Ground or Water Surface
24	Scale factor of first fixed surface	0
25-28	Scaled value of first fixed surface	0
29	Type of second fixed surfaced	255	Missing
30	Scale factor of second fixed surface	0
31-34	Scaled value of second fixed surfaces	0
35-36	YearTime of end of overall time interval	varies
37	MonthTime of end of overall time interval	varies
38	DayTime of end of overall time interval	varies
39	HourTime of end of overall time interval	varies
40	MinuteTime of end of overall time interval	varies
41	SecondTime of end of overall time interval	varies
42	n - number of time ranges specifications describing the time intervals used to calculate the statistically-processed field	1
43-46	Total number of data values missing in statistical process	0
47	Statistical process used to calculate the processed field from the field at each time increment during the time range	1	Accumulation(see Note 1)
48	Type of time increment between successive fields used in the statistical processing	2	Successive times processed have same start time of forecast, forecast time is incremented.
49	Indicator of unit of time for time range over which statistical processing is done	1	Hour
50-53	Length of the time range over which statistical processing is done, in units defined by the previous octet	6
54	Indicator of unit of time for the increment between the successive fields used	1	Hour
55-58	Time increment between successive fields, in units defined by the previous octet	0

snow24_50p

octet(s)	content	value	meaning	notes
1-4	length of section in octets	59
5	section number	4
6-7	Number of coordinate values after template	0	no vertical discretization has occured for this data
8-9	product template	10	Percentile forecasts at a horizontal level or in a horizontal layer in a continuous or non-continuous time interval
10	Parameter category	1	Moisture
11	Parameter number	29	Total Snowfall *** : m : ASNOW
12	Type of generating process	2	Forecast
13	Background generating process identifier	255
14	Forecast generating process identifier	104	National Blend GRIB
15-16	Hours after reference time data cutoff	65535
17	Minutes after reference time data cutoff	255
18	Indicator of unit of time range	1	Hour
19-22	Forecast time in units defined by previous octet	varies
23	Type of first fixed surface	1	Ground or Water Surface
24	Scale factor of first fixed surface	0
25-28	Scaled value of first fixed surface	0
29	Type of second fixed surfaced	255	Missing
30	Scale factor of second fixed surface	0
31-34	Scaled value of second fixed surfaces	0
35	Percentile value	50
36-37	Year of end of overall time interval	varies
38	Month of end of overall time interval	varies
39	Day of end of overall time overall time interval	varies
40	Hour of end of overall time interval	varies
41	Minute of end overall time interval	0
42	Second of end of overall time interval	varies
43	nnumber of time ranges specifications describing the time intervals used to calculate the statistically-processed field	1
44-47	Total number of data values missing in the statistical process	0
48	Statistical process used to calculate the processed field from the field at each time increment during the time range	1	Accumulation(see Note 1)
49	Type of time increment between successive fields used in the statistical processing	2	Successive times processed have same start time of forecast, forecast time is incremented.
50	Indicator of unit of time range over which statistical processing is done	1	Hour
51-54	Length of the time range over which statistical processing is done, in units defined by the previous octet	24
55	Indicator of unit of time for the increment between the successive fields used	1	Hour
56-59	Time increment between successive fields, in units defined by the previous octet	24

snow24prb180

octet(s)	content	value	meaning	notes
1-4	length of section in octets	71
5	section number	4
6-7	Number of coordinate values after template	0	no vertical discretization has occured for this data
8-9	product template	9	Probability forecasts at a horizontal level or in a horizontal layer in a continuous or non-continuous time interval
10	Parameter category	1	Moisture
11	Parameter number	29	Total Snowfall *** : m : ASNOW
12	Type of generating process	2	Forecast
13	Background generating process identifier	255
14	Forecast generating process identifier	104	National Blend GRIB
15-16	Hours after reference time data cutoff	65535
17	Minutes after reference time data cutoff	255
18	Indicator of unit of time range	1	Hour
19-22	Forecast time in units defined by octet 18	varies
23	Type of first fixed surface	1	Ground or Water Surface
24	Scale factor of first fixed surface	0
25-28	Scaled value of first fixed surface	0
29	Type of second fixed surfaced	255	Missing
30	Scale factor of second fixed surface	0
31-34	Scaled value of second fixed surfaces	0
35	Forecast probability number	255
36	Total number of forecast probabilities	255
37	Probability Type	1	Probability of event above upper limit
38	Scale factor of lower limit	255
39-42	Scaled value of lower limit	255
43	Scale factor of upper limit	4
44-47	Scaled value of upper limit	4572
48-49	Year of end of overall time interval	varies
50	Month of end of overall time interval	varies
51	Day of end of overall time interval	varies
52	Hour of end of overall time interval	varies
53	Minute of end of overall time interval	varies
54	Second of end of overall time interval	varies
55	nnumber of time ranges specifications describing the time intervals used to calculate the statistically-processed field	1
56-59	Total number of data values missing in the statistical process	0
60	Statistical process used to calculate the processed field from the field at each time increment during the time range	1	Accumulation(see Note 1)
61	Type of time increment between successive fields used in the statistical processing	2	Successive times processed have same start time of forecast, forecast time is incremented.
62	Indicator of unit of time for time range over which statistical processing is done	1	Hour
63-66	Length of the time range over which statistical processing is done, in units defined by the previous octet	24
67	Indicator of unit of time for the increment between the successive fields used	1	Hour
68-71	Time increment between successive fields, in units defined by the previous octet	0

snow48_50p

octet(s)	content	value	meaning	notes
1-4	length of section in octets	59
5	section number	4
6-7	Number of coordinate values after template	0	no vertical discretization has occured for this data
8-9	product template	10	Percentile forecasts at a horizontal level or in a horizontal layer in a continuous or non-continuous time interval
10	Parameter category	1	Moisture
11	Parameter number	29	Total Snowfall *** : m : ASNOW
12	Type of generating process	2	Forecast
13	Background generating process identifier	255
14	Forecast generating process identifier	104	National Blend GRIB
15-16	Hours after reference time data cutoff	65535
17	Minutes after reference time data cutoff	255
18	Indicator of unit of time range	1	Hour
19-22	Forecast time in units defined by previous octet	varies
23	Type of first fixed surface	1	Ground or Water Surface
24	Scale factor of first fixed surface	0
25-28	Scaled value of first fixed surface	0
29	Type of second fixed surfaced	255	Missing
30	Scale factor of second fixed surface	0
31-34	Scaled value of second fixed surfaces	0
35	Percentile value	50
36-37	Year of end of overall time interval	varies
38	Month of end of overall time interval	varies
39	Day of end of overall time overall time interval	varies
40	Hour of end of overall time interval	varies
41	Minute of end overall time interval	0
42	Second of end of overall time interval	varies
43	nnumber of time ranges specifications describing the time intervals used to calculate the statistically-processed field	1
44-47	Total number of data values missing in the statistical process	0
48	Statistical process used to calculate the processed field from the field at each time increment during the time range	1	Accumulation(see Note 1)
49	Type of time increment between successive fields used in the statistical processing	2	Successive times processed have same start time of forecast, forecast time is incremented.
50	Indicator of unit of time range over which statistical processing is done	1	Hour
51-54	Length of the time range over which statistical processing is done, in units defined by the previous octet	48
55	Indicator of unit of time for the increment between the successive fields used	1	Hour
56-59	Time increment between successive fields, in units defined by the previous octet	48

snow48prb180

octet(s)	content	value	meaning	notes
1-4	length of section in octets	71
5	section number	4
6-7	Number of coordinate values after template	0	no vertical discretization has occured for this data
8-9	product template	9	Probability forecasts at a horizontal level or in a horizontal layer in a continuous or non-continuous time interval
10	Parameter category	1	Moisture
11	Parameter number	29	Total Snowfall *** : m : ASNOW
12	Type of generating process	2	Forecast
13	Background generating process identifier	255
14	Forecast generating process identifier	104	National Blend GRIB
15-16	Hours after reference time data cutoff	65535
17	Minutes after reference time data cutoff	255
18	Indicator of unit of time range	1	Hour
19-22	Forecast time in units defined by octet 18	varies
23	Type of first fixed surface	1	Ground or Water Surface
24	Scale factor of first fixed surface	0
25-28	Scaled value of first fixed surface	0
29	Type of second fixed surfaced	255	Missing
30	Scale factor of second fixed surface	0
31-34	Scaled value of second fixed surfaces	0
35	Forecast probability number	255
36	Total number of forecast probabilities	255
37	Probability Type	1	Probability of event above upper limit
38	Scale factor of lower limit	255
39-42	Scaled value of lower limit	255
43	Scale factor of upper limit	4
44-47	Scaled value of upper limit	4572
48-49	Year of end of overall time interval	varies
50	Month of end of overall time interval	varies
51	Day of end of overall time interval	varies
52	Hour of end of overall time interval	varies
53	Minute of end of overall time interval	varies
54	Second of end of overall time interval	varies
55	nnumber of time ranges specifications describing the time intervals used to calculate the statistically-processed field	1
56-59	Total number of data values missing in the statistical process	0
60	Statistical process used to calculate the processed field from the field at each time increment during the time range	1	Accumulation(see Note 1)
61	Type of time increment between successive fields used in the statistical processing	2	Successive times processed have same start time of forecast, forecast time is incremented.
62	Indicator of unit of time for time range over which statistical processing is done	1	Hour
63-66	Length of the time range over which statistical processing is done, in units defined by the previous octet	48
67	Indicator of unit of time for the increment between the successive fields used	1	Hour
68-71	Time increment between successive fields, in units defined by the previous octet	0

snow72_50p

octet(s)	content	value	meaning	notes
1-4	length of section in octets	59
5	section number	4
6-7	Number of coordinate values after template	0	no vertical discretization has occured for this data
8-9	product template	10	Percentile forecasts at a horizontal level or in a horizontal layer in a continuous or non-continuous time interval
10	Parameter category	1	Moisture
11	Parameter number	29	Total Snowfall *** : m : ASNOW
12	Type of generating process	2	Forecast
13	Background generating process identifier	255
14	Forecast generating process identifier	104	National Blend GRIB
15-16	Hours after reference time data cutoff	65535
17	Minutes after reference time data cutoff	255
18	Indicator of unit of time range	1	Hour
19-22	Forecast time in units defined by previous octet	varies
23	Type of first fixed surface	1	Ground or Water Surface
24	Scale factor of first fixed surface	0
25-28	Scaled value of first fixed surface	0
29	Type of second fixed surfaced	255	Missing
30	Scale factor of second fixed surface	0
31-34	Scaled value of second fixed surfaces	0
35	Percentile value	50
36-37	Year of end of overall time interval	varies
38	Month of end of overall time interval	varies
39	Day of end of overall time overall time interval	varies
40	Hour of end of overall time interval	varies
41	Minute of end overall time interval	0
42	Second of end of overall time interval	varies
43	nnumber of time ranges specifications describing the time intervals used to calculate the statistically-processed field	1
44-47	Total number of data values missing in the statistical process	0
48	Statistical process used to calculate the processed field from the field at each time increment during the time range	1	Accumulation(see Note 1)
49	Type of time increment between successive fields used in the statistical processing	2	Successive times processed have same start time of forecast, forecast time is incremented.
50	Indicator of unit of time range over which statistical processing is done	1	Hour
51-54	Length of the time range over which statistical processing is done, in units defined by the previous octet	72
55	Indicator of unit of time for the increment between the successive fields used	1	Hour
56-59	Time increment between successive fields, in units defined by the previous octet	72

snow72prb180

octet(s)	content	value	meaning	notes
1-4	length of section in octets	71
5	section number	4
6-7	Number of coordinate values after template	0	no vertical discretization has occured for this data
8-9	product template	9	Probability forecasts at a horizontal level or in a horizontal layer in a continuous or non-continuous time interval
10	Parameter category	1	Moisture
11	Parameter number	29	Total Snowfall *** : m : ASNOW
12	Type of generating process	2	Forecast
13	Background generating process identifier	255
14	Forecast generating process identifier	104	National Blend GRIB
15-16	Hours after reference time data cutoff	65535
17	Minutes after reference time data cutoff	255
18	Indicator of unit of time range	1	Hour
19-22	Forecast time in units defined by octet 18	varies
23	Type of first fixed surface	1	Ground or Water Surface
24	Scale factor of first fixed surface	0
25-28	Scaled value of first fixed surface	0
29	Type of second fixed surfaced	255	Missing
30	Scale factor of second fixed surface	0
31-34	Scaled value of second fixed surfaces	0
35	Forecast probability number	255
36	Total number of forecast probabilities	255
37	Probability Type	1	Probability of event above upper limit
38	Scale factor of lower limit	255
39-42	Scaled value of lower limit	255
43	Scale factor of upper limit	4
44-47	Scaled value of upper limit	4572
48-49	Year of end of overall time interval	varies
50	Month of end of overall time interval	varies
51	Day of end of overall time interval	varies
52	Hour of end of overall time interval	varies
53	Minute of end of overall time interval	varies
54	Second of end of overall time interval	varies
55	nnumber of time ranges specifications describing the time intervals used to calculate the statistically-processed field	1
56-59	Total number of data values missing in the statistical process	0
60	Statistical process used to calculate the processed field from the field at each time increment during the time range	1	Accumulation(see Note 1)
61	Type of time increment between successive fields used in the statistical processing	2	Successive times processed have same start time of forecast, forecast time is incremented.
62	Indicator of unit of time for time range over which statistical processing is done	1	Hour
63-66	Length of the time range over which statistical processing is done, in units defined by the previous octet	72
67	Indicator of unit of time for the increment between the successive fields used	1	Hour
68-71	Time increment between successive fields, in units defined by the previous octet	0

snowlvl

octet(s)	content	value	meaning	notes
1-4	length of section in octets	34
5	section number	4
6-7	Number of coordinate values after template	0	no vertical discretization has occured for this data
8-9	product template	0	Analysis or forecast at a horizontal level or in a horizontal layer at a point in time
10	Parameter category	19	Physical atmospheric properties
11	Parameter number	236	Snow Level : m : SNOWLVL
12	Type of generating process	2	Forecast
13	Background generating process identifier	255
14	Analysis or forecast generating process identified	104	National Blend GRIB
15-16	Hours of observational data cutoff after reference time	65535
17	Minutes of observational data cutoff after reference time	255
18	Indicator of unit of time range	1	Hour
19-22	Forecast time in units defined by octet 18	varies
23	Type of first fixed surface	102	Specific Altitude Above Mean Sea Level : m
24	Scale factor of first fixed surface	0
25-28	Scaled value of first fixed surface	0
29	Type of second fixed surfaced	255	Missing
30	Scale factor of second fixed surface	0
31-34	Scaled value of second fixed surfaces	0

spc_sref_dryts03

octet(s)	content	value	meaning	notes
1-4	length of section in octets	71
5	section number	4
6-7	Number of coordinate values after template	0	no vertical discretization has occured for this data
8-9	product template	9	Probability forecasts at a horizontal level or in a horizontal layer in a continuous or non-continuous time interval
10	Parameter category	19	Physical atmospheric properties
11	Parameter number	237	Dry Thunderstorm Probability : % : DRYTPROB
12	Type of generating process	5	Probability Forecast
13	Background generating process identifier	0
14	Forecast generating process identifier	113	Products from NCEP SREF processing
15-16	Hours after reference time data cutoff	0
17	Minutes after reference time data cutoff	0
18	Indicator of unit of time range	1	Hour
19-22	Forecast time in units defined by octet 18	varies
23	Type of first fixed surface	1	Ground or Water Surface
24	Scale factor of first fixed surface	0
25-28	Scaled value of first fixed surface	0
29	Type of second fixed surfaced	255	Missing
30	Scale factor of second fixed surface	0
31-34	Scaled value of second fixed surfaces	0
35	Forecast probability number	0
36	Total number of forecast probabilities	21
37	Probability Type	1	Probability of event above upper limit
38	Scale factor of lower limit	0
39-42	Scaled value of lower limit	0
43	Scale factor of upper limit	0
44-47	Scaled value of upper limit	0
48-49	Year of end of overall time interval	varies
50	Month of end of overall time interval	varies
51	Day of end of overall time interval	varies
52	Hour of end of overall time interval	varies
53	Minute of end of overall time interval	varies
54	Second of end of overall time interval	varies
55	nnumber of time ranges specifications describing the time intervals used to calculate the statistically-processed field	1
56-59	Total number of data values missing in the statistical process	0
60	Statistical process used to calculate the processed field from the field at each time increment during the time range	1	Accumulation(see Note 1)
61	Type of time increment between successive fields used in the statistical processing	2	Successive times processed have same start time of forecast, forecast time is incremented.
62	Indicator of unit of time for time range over which statistical processing is done	1	Hour
63-66	Length of the time range over which statistical processing is done, in units defined by the previous octet	3
67	Indicator of unit of time for the increment between the successive fields used	1	Hour
68-71	Time increment between successive fields, in units defined by the previous octet	0

sst

octet(s)	content	value	meaning	notes
1-4	length of section in octets	34
5	section number	4
6-7	Number of coordinate values after template	0	no vertical discretization has occured for this data
8-9	product template	0	Analysis or forecast at a horizontal level or in a horizontal layer at a point in time
10	Parameter category	0	Temperature
11	Parameter number	0	Temperature : K : TMP
12	Type of generating process	2	Forecast
13	Background generating process identifier	255
14	Analysis or forecast generating process identified	104	National Blend GRIB
15-16	Hours of observational data cutoff after reference time	65535
17	Minutes of observational data cutoff after reference time	255
18	Indicator of unit of time range	1	Hour
19-22	Forecast time in units defined by octet 18	varies
23	Type of first fixed surface	1	Ground or Water Surface
24	Scale factor of first fixed surface	0
25-28	Scaled value of first fixed surface	0
29	Type of second fixed surfaced	255	Missing
30	Scale factor of second fixed surface	0
31-34	Scaled value of second fixed surfaces	0

temp

octet(s)	content	value	meaning	notes
1-4	length of section in octets	34
5	section number	4
6-7	Number of coordinate values after template	0	no vertical discretization has occured for this data
8-9	product template	0	Analysis or forecast at a horizontal level or in a horizontal layer at a point in time
10	Parameter category	0	Temperature
11	Parameter number	0	Temperature : K : TMP
12	Type of generating process	2	Forecast
13	Background generating process identifier	255
14	Analysis or forecast generating process identified	104	National Blend GRIB
15-16	Hours of observational data cutoff after reference time	65535
17	Minutes of observational data cutoff after reference time	255
18	Indicator of unit of time range	1	Hour
19-22	Forecast time in units defined by octet 18	varies
23	Type of first fixed surface	103	Specified Height Level Above Ground : m
24	Scale factor of first fixed surface	0
25-28	Scaled value of first fixed surface	2
29	Type of second fixed surfaced	255	Missing
30	Scale factor of second fixed surface	0
31-34	Scaled value of second fixed surfaces	0

trwdir

octet(s)	content	value	meaning	notes
1-4	length of section in octets	34
5	section number	4
6-7	Number of coordinate values after template	0	no vertical discretization has occured for this data
8-9	product template	0	Analysis or forecast at a horizontal level or in a horizontal layer at a point in time
10	Parameter category	2	Momentum
11	Parameter number	226	NotFound
12	Type of generating process	2	Forecast
13	Background generating process identifier	255
14	Analysis or forecast generating process identified	104	National Blend GRIB
15-16	Hours of observational data cutoff after reference time	65535
17	Minutes of observational data cutoff after reference time	255
18	Indicator of unit of time range	1	Hour
19-22	Forecast time in units defined by octet 18	varies
23	Type of first fixed surface	200	Entire atmosphere (considered as a single layer)
24	Scale factor of first fixed surface	0
25-28	Scaled value of first fixed surface	0
29	Type of second fixed surfaced	255	Missing
30	Scale factor of second fixed surface	0
31-34	Scaled value of second fixed surfaces	0

trwspd

octet(s)	content	value	meaning	notes
1-4	length of section in octets	34
5	section number	4
6-7	Number of coordinate values after template	0	no vertical discretization has occured for this data
8-9	product template	0	Analysis or forecast at a horizontal level or in a horizontal layer at a point in time
10	Parameter category	2	Momentum
11	Parameter number	225	NotFound
12	Type of generating process	2	Forecast
13	Background generating process identifier	255
14	Analysis or forecast generating process identified	104	National Blend GRIB
15-16	Hours of observational data cutoff after reference time	65535
17	Minutes of observational data cutoff after reference time	255
18	Indicator of unit of time range	1	Hour
19-22	Forecast time in units defined by octet 18	varies
23	Type of first fixed surface	200	Entire atmosphere (considered as a single layer)
24	Scale factor of first fixed surface	0
25-28	Scaled value of first fixed surface	0
29	Type of second fixed surfaced	255	Missing
30	Scale factor of second fixed surface	0
31-34	Scaled value of second fixed surfaces	0

vil

octet(s)	content	value	meaning	notes
1-4	length of section in octets	34
5	section number	4
6-7	Number of coordinate values after template	0	no vertical discretization has occured for this data
8-9	product template	0	Analysis or forecast at a horizontal level or in a horizontal layer at a point in time
10	Parameter category	15	Radar
11	Parameter number	3	Vertically-Integrated Liquid Water : kg m-2 : VIL
12	Type of generating process	2	Forecast
13	Background generating process identifier	255
14	Analysis or forecast generating process identified	104	National Blend GRIB
15-16	Hours of observational data cutoff after reference time	65535
17	Minutes of observational data cutoff after reference time	255
18	Indicator of unit of time range	1	Hour
19-22	Forecast time in units defined by octet 18	varies
23	Type of first fixed surface	10	Entire Atmosphere
24	Scale factor of first fixed surface	0
25-28	Scaled value of first fixed surface	0
29	Type of second fixed surfaced	255	Missing
30	Scale factor of second fixed surface	0
31-34	Scaled value of second fixed surfaces	0

vis

octet(s)	content	value	meaning	notes
1-4	length of section in octets	34
5	section number	4
6-7	Number of coordinate values after template	0	no vertical discretization has occured for this data
8-9	product template	0	Analysis or forecast at a horizontal level or in a horizontal layer at a point in time
10	Parameter category	19	Physical atmospheric properties
11	Parameter number	0	Visibility : m : VIS
12	Type of generating process	2	Forecast
13	Background generating process identifier	255
14	Analysis or forecast generating process identified	104	National Blend GRIB
15-16	Hours of observational data cutoff after reference time	65535
17	Minutes of observational data cutoff after reference time	255
18	Indicator of unit of time range	1	Hour
19-22	Forecast time in units defined by octet 18	varies
23	Type of first fixed surface	1	Ground or Water Surface
24	Scale factor of first fixed surface	0
25-28	Scaled value of first fixed surface	0
29	Type of second fixed surfaced	255	Missing
30	Scale factor of second fixed surface	0
31-34	Scaled value of second fixed surfaces	0

vis_cdf-50p

octet(s)	content	value	meaning	notes
1-4	length of section in octets	35
5	section number	4
6-7	Number of coordinate values after template	0	no vertical discretization has occured for this data
8-9	product template	6	Percentile forecasts at a horizontal level or in a horizontal layer at a point in time
10	Parameter category	19	Physical atmospheric properties
11	Parameter number	0	Visibility : m : VIS
12	Type of generating process	2	Forecast
13	Background generating process identifier	255
14	Forecast generating process identified	104	National Blend GRIB
15-16	Hours after reference time data cutoff	65535
17	Minutes after reference time data cutoff	255
18	Indicator of unit of time range	1	Hour
19-22	Forecast time in units defined by octet 18	varies
23	Type of first fixed surface	1	Ground or Water Surface
24	Scale factor of first fixed surface	0
25-28	Scaled value of first fixed surface	0
29	Type of second fixed surfaced	255	Missing
30	Scale factor of second fixed surface	0
31-34	Scaled value of second fixed surfaces	0
35	Percentile value	50

visp_lt1

octet(s)	content	value	meaning	notes
1-4	length of section in octets	47
5	section number	4
6-7	Number of coordinate values after template	0	no vertical discretization has occured for this data
8-9	product template	5	Probability forecasts at a horizontal level or in a horizontal layer at a point in time
10	Parameter category	19	Physical atmospheric properties
11	Parameter number	0	Visibility : m : VIS
12	Type of generating process	5	Probability Forecast
13	Background generating process identifier	255
14	Forecast generating process identified	108	Localized Aviation MOS Program (LAMP)
15-16	Hours after reference time data cutoff	65535
17	Minutes after reference time data cutoff	255
18	Indicator of unit of time range	1	Hour
19-22	Forecast time in units defined by octet 18	varies
23	Type of first fixed surface	1	Ground or Water Surface
24	Scale factor of first fixed surface	0
25-28	Scaled value of first fixed surface	0
29	Type of second fixed surfaced	255	Missing
30	Scale factor of second fixed surface	0
31-34	Scaled value of second fixed surfaces	0
35	Forecastprobability number	2
36	Total number of forecast probabilities	6
37	Probability type	0	Probability of event below lower limit
38	Scale factor of lower limit	2
39-42	Scaled value of lower limit	160934
43	Scale factor of upper limit	255
44-47	Scaled value ofupper limit	255

visp_lt3

octet(s)	content	value	meaning	notes
1-4	length of section in octets	47
5	section number	4
6-7	Number of coordinate values after template	0	no vertical discretization has occured for this data
8-9	product template	5	Probability forecasts at a horizontal level or in a horizontal layer at a point in time
10	Parameter category	19	Physical atmospheric properties
11	Parameter number	0	Visibility : m : VIS
12	Type of generating process	5	Probability Forecast
13	Background generating process identifier	255
14	Forecast generating process identified	108	Localized Aviation MOS Program (LAMP)
15-16	Hours after reference time data cutoff	65535
17	Minutes after reference time data cutoff	255
18	Indicator of unit of time range	1	Hour
19-22	Forecast time in units defined by octet 18	varies
23	Type of first fixed surface	1	Ground or Water Surface
24	Scale factor of first fixed surface	0
25-28	Scaled value of first fixed surface	0
29	Type of second fixed surfaced	255	Missing
30	Scale factor of second fixed surface	0
31-34	Scaled value of second fixed surfaces	0
35	Forecastprobability number	4
36	Total number of forecast probabilities	6
37	Probability type	0	Probability of event below lower limit
38	Scale factor of lower limit	2
39-42	Scaled value of lower limit	482803
43	Scale factor of upper limit	255
44-47	Scaled value ofupper limit	255

visp_lte5

octet(s)	content	value	meaning	notes
1-4	length of section in octets	47
5	section number	4
6-7	Number of coordinate values after template	0	no vertical discretization has occured for this data
8-9	product template	5	Probability forecasts at a horizontal level or in a horizontal layer at a point in time
10	Parameter category	19	Physical atmospheric properties
11	Parameter number	0	Visibility : m : VIS
12	Type of generating process	5	Probability Forecast
13	Background generating process identifier	255
14	Forecast generating process identified	108	Localized Aviation MOS Program (LAMP)
15-16	Hours after reference time data cutoff	65535
17	Minutes after reference time data cutoff	255
18	Indicator of unit of time range	1	Hour
19-22	Forecast time in units defined by octet 18	varies
23	Type of first fixed surface	1	Ground or Water Surface
24	Scale factor of first fixed surface	0
25-28	Scaled value of first fixed surface	0
29	Type of second fixed surfaced	255	Missing
30	Scale factor of second fixed surface	0
31-34	Scaled value of second fixed surfaces	0
35	Forecastprobability number	5
36	Total number of forecast probabilities	6
37	Probability type	0	Probability of event below lower limit
38	Scale factor of lower limit	2
39-42	Scaled value of lower limit	804673
43	Scale factor of upper limit	255
44-47	Scaled value ofupper limit	255

vrate

octet(s)	content	value	meaning	notes
1-4	length of section in octets	34
5	section number	4
6-7	Number of coordinate values after template	0	no vertical discretization has occured for this data
8-9	product template	0	Analysis or forecast at a horizontal level or in a horizontal layer at a point in time
10	Parameter category	2	Momentum
11	Parameter number	224	NotFound
12	Type of generating process	2	Forecast
13	Background generating process identifier	255
14	Analysis or forecast generating process identified	104	National Blend GRIB
15-16	Hours of observational data cutoff after reference time	65535
17	Minutes of observational data cutoff after reference time	255
18	Indicator of unit of time range	1	Hour
19-22	Forecast time in units defined by octet 18	varies
23	Type of first fixed surface	200	Entire atmosphere (considered as a single layer)
24	Scale factor of first fixed surface	0
25-28	Scaled value of first fixed surface	0
29	Type of second fixed surfaced	255	Missing
30	Scale factor of second fixed surface	0
31-34	Scaled value of second fixed surfaces	0

wdir

octet(s)	content	value	meaning	notes
1-4	length of section in octets	34
5	section number	4
6-7	Number of coordinate values after template	0	no vertical discretization has occured for this data
8-9	product template	0	Analysis or forecast at a horizontal level or in a horizontal layer at a point in time
10	Parameter category	2	Momentum
11	Parameter number	0	Wind Direction (from which blowing) : WDIR
12	Type of generating process	2	Forecast
13	Background generating process identifier	255
14	Analysis or forecast generating process identified	104	National Blend GRIB
15-16	Hours of observational data cutoff after reference time	65535
17	Minutes of observational data cutoff after reference time	255
18	Indicator of unit of time range	1	Hour
19-22	Forecast time in units defined by octet 18	varies
23	Type of first fixed surface	103	Specified Height Level Above Ground : m
24	Scale factor of first fixed surface	0
25-28	Scaled value of first fixed surface	10
29	Type of second fixed surfaced	255	Missing
30	Scale factor of second fixed surface	0
31-34	Scaled value of second fixed surfaces	0

tropical_blend

octet(s)	content	value	meaning	notes
1-4	length of section in octets	34
5	section number	4
6-7	Number of coordinate values after template	0	no vertical discretization has occured for this data
8-9	product template	0	Analysis or forecast at a horizontal level or in a horizontal layer at a point in time
10	Parameter category	2	Momentum
11	Parameter number	231	NotFound
12	Type of generating process	2	Forecast
13	Background generating process identifier	255
14	Analysis or forecast generating process identified	104	National Blend GRIB
15-16	Hours of observational data cutoff after reference time	65535
17	Minutes of observational data cutoff after reference time	255
18	Indicator of unit of time range	1	Hour
19-22	Forecast time in units defined by octet 18	varies
23	Type of first fixed surface	103	Specified Height Level Above Ground : m
24	Scale factor of first fixed surface	0
25-28	Scaled value of first fixed surface	10
29	Type of second fixed surfaced	255	Missing
30	Scale factor of second fixed surface	0
31-34	Scaled value of second fixed surfaces	0

wdir30

octet(s)	content	value	meaning	notes
1-4	length of section in octets	34
5	section number	4
6-7	Number of coordinate values after template	0	no vertical discretization has occured for this data
8-9	product template	0	Analysis or forecast at a horizontal level or in a horizontal layer at a point in time
10	Parameter category	2	Momentum
11	Parameter number	0	Wind Direction (from which blowing) : WDIR
12	Type of generating process	2	Forecast
13	Background generating process identifier	255
14	Analysis or forecast generating process identified	104	National Blend GRIB
15-16	Hours of observational data cutoff after reference time	65535
17	Minutes of observational data cutoff after reference time	255
18	Indicator of unit of time range	1	Hour
19-22	Forecast time in units defined by octet 18	varies
23	Type of first fixed surface	103	Specified Height Level Above Ground : m
24	Scale factor of first fixed surface	0
25-28	Scaled value of first fixed surface	30
29	Type of second fixed surfaced	255	Missing
30	Scale factor of second fixed surface	255
31-34	Scaled value of second fixed surfaces	4294967295

wdir30_cdf-50p

octet(s)	content	value	meaning	notes
1-4	length of section in octets	35
5	section number	4
6-7	Number of coordinate values after template	0	no vertical discretization has occured for this data
8-9	product template	6	Percentile forecasts at a horizontal level or in a horizontal layer at a point in time
10	Parameter category	2	Momentum
11	Parameter number	0	Wind Direction (from which blowing) : WDIR
12	Type of generating process	2	Forecast
13	Background generating process identifier	255
14	Forecast generating process identified	104	National Blend GRIB
15-16	Hours after reference time data cutoff	65535
17	Minutes after reference time data cutoff	255
18	Indicator of unit of time range	1	Hour
19-22	Forecast time in units defined by octet 18	varies
23	Type of first fixed surface	103	Specified Height Level Above Ground : m
24	Scale factor of first fixed surface	0
25-28	Scaled value of first fixed surface	30
29	Type of second fixed surfaced	255	Missing
30	Scale factor of second fixed surface	255
31-34	Scaled value of second fixed surfaces	4294967295
35	Percentile value	50

wdir_cdf-50p

octet(s)	content	value	meaning	notes
1-4	length of section in octets	35
5	section number	4
6-7	Number of coordinate values after template	0	no vertical discretization has occured for this data
8-9	product template	6	Percentile forecasts at a horizontal level or in a horizontal layer at a point in time
10	Parameter category	2	Momentum
11	Parameter number	0	Wind Direction (from which blowing) : WDIR
12	Type of generating process	2	Forecast
13	Background generating process identifier	255
14	Forecast generating process identified	104	National Blend GRIB
15-16	Hours after reference time data cutoff	65535
17	Minutes after reference time data cutoff	255
18	Indicator of unit of time range	1	Hour
19-22	Forecast time in units defined by octet 18	varies
23	Type of first fixed surface	103	Specified Height Level Above Ground : m
24	Scale factor of first fixed surface	0
25-28	Scaled value of first fixed surface	10
29	Type of second fixed surfaced	255	Missing
30	Scale factor of second fixed surface	0
31-34	Scaled value of second fixed surfaces	0
35	Percentile value	50

wgust

octet(s)	content	value	meaning	notes
1-4	length of section in octets	34
5	section number	4
6-7	Number of coordinate values after template	0	no vertical discretization has occured for this data
8-9	product template	0	Analysis or forecast at a horizontal level or in a horizontal layer at a point in time
10	Parameter category	2	Momentum
11	Parameter number	22	Wind Speed (Gust) : m s-1 : GUST
12	Type of generating process	2	Forecast
13	Background generating process identifier	255
14	Analysis or forecast generating process identified	104	National Blend GRIB
15-16	Hours of observational data cutoff after reference time	65535
17	Minutes of observational data cutoff after reference time	255
18	Indicator of unit of time range	1	Hour
19-22	Forecast time in units defined by octet 18	varies
23	Type of first fixed surface	103	Specified Height Level Above Ground : m
24	Scale factor of first fixed surface	0
25-28	Scaled value of first fixed surface	10
29	Type of second fixed surfaced	255	Missing
30	Scale factor of second fixed surface	0
31-34	Scaled value of second fixed surfaces	0

gust_cdf-50p

octet(s)	content	value	meaning	notes
1-4	length of section in octets	35
5	section number	4
6-7	Number of coordinate values after template	0	no vertical discretization has occured for this data
8-9	product template	6	Percentile forecasts at a horizontal level or in a horizontal layer at a point in time
10	Parameter category	2	Momentum
11	Parameter number	22	Wind Speed (Gust) : m s-1 : GUST
12	Type of generating process	2	Forecast
13	Background generating process identifier	255
14	Forecast generating process identified	104	National Blend GRIB
15-16	Hours after reference time data cutoff	65535
17	Minutes after reference time data cutoff	255
18	Indicator of unit of time range	1	Hour
19-22	Forecast time in units defined by octet 18	varies
23	Type of first fixed surface	103	Specified Height Level Above Ground : m
24	Scale factor of first fixed surface	0
25-28	Scaled value of first fixed surface	10
29	Type of second fixed surfaced	255	Missing
30	Scale factor of second fixed surface	0
31-34	Scaled value of second fixed surfaces	0
35	Percentile value	50

wspd

octet(s)	content	value	meaning	notes
1-4	length of section in octets	34
5	section number	4
6-7	Number of coordinate values after template	0	no vertical discretization has occured for this data
8-9	product template	0	Analysis or forecast at a horizontal level or in a horizontal layer at a point in time
10	Parameter category	2	Momentum
11	Parameter number	1	Wind Speed : m s-1 : WIND
12	Type of generating process	2	Forecast
13	Background generating process identifier	255
14	Analysis or forecast generating process identified	104	National Blend GRIB
15-16	Hours of observational data cutoff after reference time	65535
17	Minutes of observational data cutoff after reference time	255
18	Indicator of unit of time range	1	Hour
19-22	Forecast time in units defined by octet 18	varies
23	Type of first fixed surface	103	Specified Height Level Above Ground : m
24	Scale factor of first fixed surface	0
25-28	Scaled value of first fixed surface	10
29	Type of second fixed surfaced	255	Missing
30	Scale factor of second fixed surface	0
31-34	Scaled value of second fixed surfaces	0

tropical_blend

octet(s)	content	value	meaning	notes
1-4	length of section in octets	34
5	section number	4
6-7	Number of coordinate values after template	0	no vertical discretization has occured for this data
8-9	product template	0	Analysis or forecast at a horizontal level or in a horizontal layer at a point in time
10	Parameter category	2	Momentum
11	Parameter number	232	NotFound
12	Type of generating process	2	Forecast
13	Background generating process identifier	255
14	Analysis or forecast generating process identified	104	National Blend GRIB
15-16	Hours of observational data cutoff after reference time	65535
17	Minutes of observational data cutoff after reference time	255
18	Indicator of unit of time range	1	Hour
19-22	Forecast time in units defined by octet 18	varies
23	Type of first fixed surface	103	Specified Height Level Above Ground : m
24	Scale factor of first fixed surface	0
25-28	Scaled value of first fixed surface	10
29	Type of second fixed surfaced	255	Missing
30	Scale factor of second fixed surface	0
31-34	Scaled value of second fixed surfaces	0

wspd10_cdf-50p

octet(s)	content	value	meaning	notes
1-4	length of section in octets	35
5	section number	4
6-7	Number of coordinate values after template	0	no vertical discretization has occured for this data
8-9	product template	6	Percentile forecasts at a horizontal level or in a horizontal layer at a point in time
10	Parameter category	2	Momentum
11	Parameter number	1	Wind Speed : m s-1 : WIND
12	Type of generating process	2	Forecast
13	Background generating process identifier	255
14	Forecast generating process identified	104	National Blend GRIB
15-16	Hours after reference time data cutoff	65535
17	Minutes after reference time data cutoff	255
18	Indicator of unit of time range	1	Hour
19-22	Forecast time in units defined by octet 18	varies
23	Type of first fixed surface	103	Specified Height Level Above Ground : m
24	Scale factor of first fixed surface	0
25-28	Scaled value of first fixed surface	10
29	Type of second fixed surfaced	255	Missing
30	Scale factor of second fixed surface	0
31-34	Scaled value of second fixed surfaces	0
35	Percentile value	50

wspd30

octet(s)	content	value	meaning	notes
1-4	length of section in octets	34
5	section number	4
6-7	Number of coordinate values after template	0	no vertical discretization has occured for this data
8-9	product template	0	Analysis or forecast at a horizontal level or in a horizontal layer at a point in time
10	Parameter category	2	Momentum
11	Parameter number	1	Wind Speed : m s-1 : WIND
12	Type of generating process	2	Forecast
13	Background generating process identifier	255
14	Analysis or forecast generating process identified	104	National Blend GRIB
15-16	Hours of observational data cutoff after reference time	65535
17	Minutes of observational data cutoff after reference time	255
18	Indicator of unit of time range	1	Hour
19-22	Forecast time in units defined by octet 18	varies
23	Type of first fixed surface	103	Specified Height Level Above Ground : m
24	Scale factor of first fixed surface	0
25-28	Scaled value of first fixed surface	30
29	Type of second fixed surfaced	255	Missing
30	Scale factor of second fixed surface	0
31-34	Scaled value of second fixed surfaces	0