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Service Change Notice 11-03

National Weather Service Headquarters Washington DC

720 AM EST Wed Jan 26 2011

TO: Subscribers:
 -Family of Services
 -NOAA Weather Wire Service
 -Emergency Managers Weather Information Network
 -NOAAPORT

Other NWS partners and NWS employees

FROM: James E. Hoke

Director, Hydrometeorological Prediction Center

SUBJECT:  Transition of HPC Probabilistic Freezing Temperature
  Charts from Experimental to Operational Effective
   March 1, 2011
 

Effective Tuesday, March 1, 2011, the National Centers for Environmental Prediction’s (NCEP) Hydrometeorological Prediction Center (HPC) will transition the HPC Probabilistic Freezing Temperature charts to operational status. These charts depict the probability of minimum near surface temperatures falling to 32 degrees Fahrenheit or less at 6 hour forecast intervals out through 156 hours. These products are derived from the National Digital Forecast Database (NDFD) temperature forecasts and the 2-meter temperature grid spread from the Global Forecast System (GFS) ensemble.

The products are available online at:

http://www.hpc.ncep.noaa.gov/prob32/

For more information, please contact:

Ed Danaher

Chief, HPC Development and Training Branch

5400 Auth Road

Camp Springs , MD 20746

(301) 763-8000, ext. 7354

edwin.danaher@noaa.gov

National Service Change Notices are online at:

http://www.weather.gov/os/notif.htm

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