SPC AC 210446

   Day 1 Convective Outlook  
   NWS Storm Prediction Center Norman OK
   1146 PM CDT Thu Mar 20 2025

   Valid 211200Z - 221200Z

   ...NO SEVERE THUNDERSTORM AREAS FORECAST...

   ...SUMMARY...
   Severe thunderstorms are not forecast today.

   ...Synopsis...
   A northwest flow regime will exist across the CONUS today, with
   multiple embedded waves. In general, minimal thunderstorm activity
   is forecast due to a relatively stable air mass due to high
   pressure. One such high will be situated over the Southeast and into
   the Gulf through the period, with minimal moisture return into
   southern TX. Another surface high will be centered over the Great
   Basin for much of the period. That said, thunderstorm chances will
   be limited to a small part of the Pacific Northwest, and from
   southeast SD across IA and into IL. Both areas will be beneath their
   respective shortwave troughs, with cool temperatures aloft
   supporting weak convection.

   ..Jewell/Lyons.. 03/21/2025

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   NOTE: THE NEXT DAY 1 OUTLOOK IS SCHEDULED BY 1300Z