NOUS41 KWBC 141832 
PNSWSH 

Public Information Statement
National Weather Service Headquarters Washington DC 
130 PM EST Fri Dec 14 2012

To:       Subscribers:
          -Family of Services 
          -NOAA Weather Wire Service 
          -Emergency Managers Weather Information Network  
          -NOAAPORT 
          Other NWS partners and NWS employees 

From:     James Hoke
          Director, Hydrometeorological Prediction Center

Subject:  Solicitation of Comments through March 15, 2013, 
          on the Experimental HPC Probabilistic Winter Weather 
		  Forecast (PWPF) Percentile Products 

The National Centers for Environmental Prediction’s (NCEP) 
Hydrometeorological Prediction Center (HPC) is soliciting 
comments on the Experimental HPC Probabilistic Winter Weather 
Forecast (PWPF) percentile products. The new percentile forecasts 
complement the existing probability of exceedance forecasts and 
are derived from the same probability distribution function. The 
percentile forecasts are available for snow and ice accumulations 
at the 5th, 10th, 25th, 50th, 75th, 90th, and 95th percentile 
levels over the CONUS.

Graphical representations of the products are online at:
   
www.hpc.ncep.noaa.gov/pwpf/wwd_percentiles.php?fpd=24&ptype=snow

www.hpc.ncep.noaa.gov/pwpf/wwd_percentiles.php?fpd=24&ptype=icez

The percentile data are available in GRIB2 format from the HPC 
ftp server at:

ftp://ftp.hpc.ncep.noaa.gov/pwpf/
 
The electronic survey as listed on the HPC webpage can be found 
at the following: 

www.hpc.ncep.noaa.gov/pwpf/wwd_percentiles.php?fpd=24&ptype=snow
This product is in the new and enhanced products/services catalog 
at the following:

https://products.weather.gov/viewExperimental.php?selrow=490

Comments regarding the HPC experimental PWPF percentiles should 
be sent by March 15, 2013, to:
      
NOAA/NCEP/HPC
David Novak (W/NP32)
College Park, Maryland 20740
301-683-1484
David.Novak@noaa.gov

NWS Public Information Statements are online at:

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

$$