DeGRIB Simple Weather Table v2 and 3 - MDL

For convention sake, the fields of the weather string here are W=Weather type, C=Coverage type, I=Intensity, V=Visibility (not used), H=Hazard (not used). I use "C programming" convention to refer to which word. [0] refers to the 1st, [1] the 2nd, ... [4] the 5th.

To use this table, find the entry that it matches the most specifications of. In otherwords if it is W[0]=L, C[0]=SCT, use 1, but if C[0] is not in {SCT, SCHC, PATCHY, ISO, CHC}, use 9. If it matters, the precident is from left to right.

The "Simple Weather Code" is in the "Code" column.

In the following, the entries in blue were added to the Simple Weather 2 table in Feb. 2004 to create the Simple Weather 3 table.

W[0]	C[0]	W[1]	I[0]	Code	Label
*	*	*	*	0	No weather
L	SCT, SCHC, PATCHY, ISO, CHC	*	-, --	1	LoProb L-
L	SCT, SCHC, PATCHY, ISO, CHC	*	*	2	LoProb L
L	SCT, SCHC, PATCHY, ISO, CHC	*	+	3	LoProb L+
R	SCT, SCHC, PATCHY, ISO, CHC	*	-, --	4	LoProb R-
R	SCT, SCHC, PATCHY, ISO, CHC	*	*	5	LoProb R
R	SCT, SCHC, PATCHY, ISO, CHC	*	+	6	LoProb R+
T	SCT, SCHC, PATCHY, ISO, CHC	R	+	7	LoProb T+ R
R	SCT, SCHC, PATCHY, ISO, CHC	T	+	8	LoProb R+ T
R, T	SCT, SCHC, PATCHY, ISO, CHC	T, R	-, --	9	LoProb R/T-
T	SCT, SCHC, PATCHY, ISO, CHC	R	*	10	LoProb R/T
RW	SCT, SCHC, PATCHY, ISO, CHC	*	-, --	11	LoProb RW-
RW	SCT, SCHC, PATCHY, ISO, CHC	*	*	12	LoProb RW
RW	SCT, SCHC, PATCHY, ISO, CHC	*	+	13	LoProb RW+
T	SCT, SCHC, PATCHY, ISO, CHC	RW	+	14	LoProb T+ RW
RW, T	SCT, SCHC, PATCHY, ISO, CHC	T, RW	*	15	LoProb RW/T
RW	SCT, SCHC, PATCHY, ISO, CHC	T	+	16	LoProb RW+ T
RW, T	SCT, SCHC, PATCHY, ISO, CHC	T, RW	-, --	17	LoProb RW/T-
T	SCT, SCHC, PATCHY, ISO, CHC	*	*	18	LoProb T
T	SCT, SCHC, PATCHY, ISO, CHC	*	+	19	LoProb T+
L	*	*	-, --	20	HiProb L-
L	*	*	*	21	HiProb L
L	*	*	+	22	HiProb L+
R	*	*	-, --	23	HiProb R-
R	*	*	*	24	HiProb R
R	*	*	+	25	HiProb R+
T	*	R	+	26	HiProb T+ R
R	SCT, SCHC, PATCHY, ISO, CHC	T	*	27	?HiProb R/T?
T, R	*	R, T	*	27	HiProb R/T
R	*	T	+	28	HiProb R+ T
R, T	*	T, R	-, --	29	HiProb R/T-
RW	*	*	-, --	30	HiProb RW-
RW	*	*	*	31	HiProb RW
RW	*	*	+	32	HiProb RW+
RW, T	*	T, RW	*	33	HiProb RW/T
T	*	RW	+	34	HiProb T+ RW
RW	*	T	+	35	HiProb RW+ T
RW, T	*	T, RW	-, --	36	HiProb RW/T-
T	*	*	*	37	HiProb T
T	*	*	+	38	HiProb T+
R	SCT, SCHC, PATCHY, ISO, CHC	S, SW	-, --	39	LoProb R/S-
S	SCT, SCHC, PATCHY, ISO, CHC	R, RW	-, --	39	LoProb R/S-
R	SCT, SCHC, PATCHY, ISO, CHC	S, SW	*	40	LoProb R/S
S	SCT, SCHC, PATCHY, ISO, CHC	R, RW	*	40	LoProb R/S
R	SCT, SCHC, PATCHY, ISO, CHC	S, SW	+	41	LoProb R/S+
S	SCT, SCHC, PATCHY, ISO, CHC	R, RW	+	41	LoProb R/S+
RW	SCT, SCHC, PATCHY, ISO, CHC	S, SW	-, --	42	LoProb RW/SW-
SW	SCT, SCHC, PATCHY, ISO, CHC	R, RW	-, --	42	LoProb RW/SW-
RW	SCT, SCHC, PATCHY, ISO, CHC	S, SW	*	43	LoProb RW/SW
SW	SCT, SCHC, PATCHY, ISO, CHC	R, RW	*	43	LoProb RW/SW
RW	SCT, SCHC, PATCHY, ISO, CHC	S, SW	+	44	LoProb RW/SW+
SW	SCT, SCHC, PATCHY, ISO, CHC	R, RW	+	44	LoProb RW/SW+
R, IP	SCT, SCHC, PATCHY, ISO, CHC	IP, R	-, --	45	LoProb R/IP-
R, IP	SCT, SCHC, PATCHY, ISO, CHC	IP, R	*	46	LoProb R/IP-
R, IP	SCT, SCHC, PATCHY, ISO, CHC	IP, R	+	47	LoProb R/IP-
IP, S	SCT, SCHC, PATCHY, ISO, CHC	S, IP	-, --	48	LoProb S/IP-
IP, S	SCT, SCHC, PATCHY, ISO, CHC	S, IP	*	49	LoProb S/IP
IP, S	SCT, SCHC, PATCHY, ISO, CHC	S, IP	+	50	LoProb S/IP+
R	*	S, SW	-, --	51	HiProb R/S-
S	*	R, RW	-, --	51	HiProb R/S-
R	*	S, SW	*	52	HiProb R/S
S	*	R, RW	*	52	HiProb R/S
R	*	S, SW	+	53	HiProb R/S+
S	*	R, RW	+	53	HiProb R/S+
RW	*	S, SW	-, --	54	HiProb RW/SW-
SW	*	R, RW	-, --	54	HiProb RW/SW-
RW	*	S, SW	*	55	HiProb RW/SW
SW	*	R, RW	*	55	HiProb RW/SW
RW	*	S, SW	+	56	HiProb RW/SW+
SW	*	R, RW	+	56	HiProb RW/SW+
R, IP	*	IP, R	-, --	57	HiProb R/IP-
R, IP	*	IP, R	*	58	HiProb R/IP
R, IP	*	IP, R	+	59	HiProb R/IP+
IP, S	*	S, IP	-, --	60	HiProb S/IP-
IP, S	*	S, IP	*	61	HiProb S/IP
IP, S	*	S, IP	+	62	HiProb S/IP+
IP	SCT, SCHC, PATCHY, ISO, CHC	*	-, --	63	LoProb IP-
IP	SCT, SCHC, PATCHY, ISO, CHC	*	*	64	LoProb IP
IP	SCT, SCHC, PATCHY, ISO, CHC	*	+	65	LoProb IP+
ZL	SCT, SCHC, PATCHY, ISO, CHC	*	-, --	66	LoProb ZL-
ZL	SCT, SCHC, PATCHY, ISO, CHC	*	*	67	LoProb ZL
ZL	SCT, SCHC, PATCHY, ISO, CHC	*	+	68	LoProb ZL+
R, ZL	SCT, SCHC, PATCHY, ISO, CHC	ZL, R	-, --	69	LoProb R/ZL-
R, ZL	SCT, SCHC, PATCHY, ISO, CHC	ZL, R	*	70	LoProb R/ZL
R, ZL	SCT, SCHC, PATCHY, ISO, CHC	ZL, R	+	71	LoProb R/ZL+
ZR	SCT, SCHC, PATCHY, ISO, CHC	*	-, --	72	LoProb ZR-
ZR	SCT, SCHC, PATCHY, ISO, CHC	*	*	73	LoProb ZR
ZR	SCT, SCHC, PATCHY, ISO, CHC	*	+	74	LoProb ZR+
R, ZR	SCT, SCHC, PATCHY, ISO, CHC	ZR, R	-, --	75	LoProb R/ZR-
R, ZR	SCT, SCHC, PATCHY, ISO, CHC	ZR, R	*	76	LoProb R/ZR
R, ZR	SCT, SCHC, PATCHY, ISO, CHC	ZR, R	+	77	LoProb R/ZR+
ZR, IP	SCT, SCHC, PATCHY, ISO, CHC	IP, ZR	-, --	78	LoProb IP/ZR-
ZR, IP	SCT, SCHC, PATCHY, ISO, CHC	IP, ZR	*	79	LoProb IP/ZR
ZR, IP	SCT, SCHC, PATCHY, ISO, CHC	IP, ZR	+	80	LoProb IP/ZR+
IP	*	*	-, --	81	HiProb IP-
IP	*	*	*	82	HiProb IP
IP	*	*	+	83	HiProb IP+
ZL	*	*	-, --	84	HiProb ZL-
ZL	*	*	*	85	HiProb ZL
ZL	*	*	+	86	HiProb ZL+
R, ZL	*	ZL, R	-, --	87	HiProb R/ZL-
R, ZL	*	ZL, R	*	88	HiProb R/ZL
R, ZL	*	ZL, R	+	89	HiProb R/ZL+
ZR	*	*	-, --	90	HiProb ZR-
ZR	*	*	*	91	HiProb ZR
ZR	*	*	+	92	HiProb ZR+
R, ZR	*	ZR, R	-, --	93	HiProb R/ZR-
R, ZR	*	ZR, R	*	94	HiProb R/ZR
R, ZR	*	ZR, R	+	95	HiProb R/ZR+
ZR, IP	*	IP, ZR	-, --	96	HiProb IP/ZR-
ZR, IP	*	IP, ZR	*	97	HiProb IP/ZR
ZR, IP	*	IP, ZR	+	98	HiProb IP/ZR+
L, ZL	SCT, SCHC, PATCHY, ISO, CHC	ZL, L	-, --	99	LoProb L/ZL-
L, ZL	SCT, SCHC, PATCHY, ISO, CHC	ZL, L	*	100	LoProb L/ZL
L, ZL	SCT, SCHC, PATCHY, ISO, CHC	ZL, L	+	101	LoProb L/ZL+
L, ZL	*	ZL, L	-, --	102	HiProb L/ZL-
L, ZL	*	ZL, L	*	103	HiProb L/ZL
L, ZL	*	ZL, L	+	104	HiProb L/ZL+
SW	SCT, SCHC, PATCHY, ISO, CHC	*	-, --	105	LoProb SW-
SW	SCT, SCHC, PATCHY, ISO, CHC	*	*	106	LoProb SW
SW	SCT, SCHC, PATCHY, ISO, CHC	*	+	107	LoProb SW+
S	SCT, SCHC, PATCHY, ISO, CHC	*	-, --	108	LoProb S-
S	SCT, SCHC, PATCHY, ISO, CHC	*	*	109	LoProb S
S	SCT, SCHC, PATCHY, ISO, CHC	*	+	110	LoProb S+
SW	*	*	-, --	111	HiProb SW-
SW	*	*	*	112	HiProb SW
SW	*	*	+	113	HiProb SW+
S	*	*	-, --	114	HiProb S-
S	*	*	*	115	HiProb S
S	*	*	+	116	HiProb S+
F	*	*	*	117	F
F	*	*	+	118	F+
H	*	*	*	119	H
K	*	*	*	120	K
BS	*	*	*	121	BS
BD	*	*	*	122	BD
Added to the version 2 table on 2/2004 to create the version 3 table.
ZF	*	*	*	123	ZF
IF	*	*	*	124	IF
IC	*	*	*	125	IC
BN	*	*	*	126	BN
ZY	*	*	*	127	ZY
VA	*	*	*	128	VA
WP	*	*	*	129	WP

Note: "R : SCT, SCHC, PATCHY, ISO, CHC : T : *" should probably be 10 based on what was done for 27.

DeGRIB Simple Weather Table v2 and 3 - MDL

DeGRIB for NDFD