NOUS41 KWBC 101900



Service Change Notice 17-14

National Weather Service Headquarters Silver Spring, MD

300 AM EST Fri Feb 10 2017


To:       Subscribers:

          -NOAA Weather Wire Service

          -Emergency Managers Weather Information Network


          Other NWS Partners, Users and Employees


From:     Dave Myrick

          Office of Science and Technology Integration


Subject:  Emergency Change to the HiResW snow

          Initialization: Effective February 14, 2017


The National Centers for Environmental Prediction (NCEP) is

making an emergency fix to the High-Resolution Window (HiResW)

model WRF-ARW system so the initial snow is properly ingested

into the model. This change will reduce a warm bias in 2 meter

temperature over snow-covered regions and, more generally, will

cool the near-surface environment over snow. The changes

will be made starting with the 12 UTC cycle on Tuesday, 

February 14, 2017.


Product output impacts will be as follows:


1.    Distributed via the following Web systems:

  -   data/nccf/com/hiresw/prod/hiresw.YYYYMMDD/




  Where YYYYMMDD is Year, Month, Day and CC is cycle


More information on the HiResW model can be found at:


2. All output distributed over NOAAPORT/SBN for the ARW members.


Send questions on these changes to:


   Matthew Pyle

   NWS/NCEP Environmental Modeling Center

   College Park, MD


   Carissa Klemmer

   NWS/NCEP Central Operations

   College Park, MD


NWS National Service Change Notices are online at: