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Welcome to the RTMA/URMA VLab community!

The purpose of this community is to facilitate feedback and discussion on the RTMA/URMA system. 

Meeting notes are available under the Google Drive Folder linked above.

To learn more about our next upgrade, see the asset publication below.

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You can post to the precip issues forum by sending an email to qpe.rtma.urma.feedback.vlab@noaa.gov.  For all other issues, you can post by sending an email to rtma.feedback.vlab@noaa.gov.  Please note that you must have a user account to post to the forum.  If you do not have an account, please contact matthew.t.morris@noaa.gov.

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What's New

December 2017 Implementation Summary

Document

Overview of upgrade scheduled for December 2017. Note that this was originally scheduled for October 2017, but has been pushed back due to technical issues.

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Modified Date
10/31/17

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URMA winds in Ohio vs PA

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Jeffrey Craven, modified 1 Year ago.

URMA winds in Ohio vs PA

Youngling Posts: 90 Join Date: 9/24/12 Recent Posts
Hello all:  I was wondering if the Ohio DOT network is automatically rejected?   

The new URMA closely matches METARs in PA but still seems to drag down the winds from the first guess in nearby Ohio.   I have attached some examples from the past couple of days. 

JPC

Jeff Craven
Meteorologist in Charge
National Weather Service Forecast Office
Pittsburgh PA (WFO PBZ)
192 Shafer Road
Coraopolis/Moon Township
PA 15108
(412) 262-1591 ext 222 work
(412) 522-5176 mobile/text
@jpcstorm

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MM
Matthew Morris, modified 1 Year ago.

RE: URMA winds in Ohio vs PA

Youngling Posts: 158 Join Date: 12/6/17 Recent Posts
Hi Jeff,

The OHDOT provider is trusted, meaning these observations will be used in RTMA/URMA provided they pass the QC checks.  A subset of these stations are, however, flagged on the SDM reject list for wind: OH005, OH049, OH050, OH073, OH075, OH082, and OH099 [list is not exhaustive].

Thanks,
Matt

On Fri, Feb 24, 2023 at 3:56 PM VLab Notifications <VLab.Notifications@noaa.gov> wrote:
Hello all:  I was wondering if the Ohio DOT network is automatically rejected?   

The new URMA closely matches METARs in PA but still seems to drag down the winds from the first guess in nearby Ohio.   I have attached some examples from the past couple of days. 

JPC

Jeff Craven
Meteorologist in Charge
National Weather Service Forecast Office
Pittsburgh PA (WFO PBZ)
192 Shafer Road
Coraopolis/Moon Township
PA 15108
(412) 262-1591 ext 222 work
(412) 522-5176 mobile/text
@jpcstorm

--
Jeffrey Craven RTMA/URMA Discussion Group Virtual Lab Forum http://vlab.noaa.gov/web/715073/home/-/message_boards/view_message/27832564VLab.Notifications@noaa.gov


--
Matthew Morris
SAIC at NOAA/NWS/NCEP/EMC
5830 University Research Ct., Rm. 2038
College Park, MD 20740
301-683-3758

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  • 2011 RTMA Paper (Weather and Forecasting)

    The most recent peer-reviewed paper on the RTMA. Published in Weather and Forecasting in 2011.
    7 Visits

  • Public RTMA/URMA Viewer

    Another viewer of the current RTMA/URMA, with an archive going back 24 hours. This version is open to the public, but does not contain information about the (many) restricted obs used.
    52 Visits

  • RAP downscaling conference preprint (23rd IIPS)

    This link is to a presentation from the (then) RUC group on how the downscaling process works. Although we now use the RAP, HRRR, and NAM, the logic of the downscaling code is mostly unchanged from this point.
    2 Visits