NOUS41 KWBC 121515

PNSWSH

 

Service Change Notice 12-26

National Weather Service Headquarters Washington DC

1115 AM EDT Thu Jul 12 2012

 

To:      Subscribers:

         -Family of Services

         -NOAA Weather Wire Service

         -Emergency Managers Weather Information Network

         -NOAAPORT

         Other NWS partners and NWS employees

 

From:    Russell Schneider

         Director, Storm Prediction Center

 

Subject: General Thunderstorm Information Added to Storm

         Prediction Center (SPC) Day 3 Convective Outlook

         Effective September 25, 2012

 

Effective Tuesday, September 25, 2012, at approximately
1500 Coordinated Universal Time (UTC), the SPC will add general thunderstorm information to all SPC Day 3 Convective Outlooks. This includes changes to:

 

-National Digital Forecast Database (NDFD) products

-Points (PTS) product

-Redbook Graphic product

 

This change is for the Continental U.S. only and will not involve changes to World Meteorological Organization Headers or Advanced Weather Interactive Processing System IDs.

 

After this change, the SPC Day 3 Convective Outlook will contain the same information as the SPC Day 2 Convective Outlook, including a definition of the area of general thunderstorms along with the already existing defined area of risk of severe thunderstorms: Slight, Moderate or High.

 

A more detailed description of the SPC Convective Outlooks can be found at:

 

   http://www.spc.noaa.gov/misc/SPC_probotlk_info.html

 

For more information, please contact:

 

   Steven Weiss

   NCEP Storm Prediction Center

   steven.j.weiss@noaa.gov

 

or

 

   John Ferree

   Office of Climate Water and Weather Services

   john.t.ferree@noaa.gov

 

National Service Change Notices are online at:

 

  http://www.weather.gov/os/notif.htm

 

$$