SPC AC 170730

   Day 3 Convective Outlook  
   NWS Storm Prediction Center Norman OK
   0130 AM CST Fri Dec 17 2021

   Valid 191200Z - 201200Z

   ...NO SEVERE THUNDERSTORM AREAS FORECAST...

   ...SUMMARY...
   No severe thunderstorms are expected across the continental United
   States Sunday or Sunday Night.

   ...Synopsis...
   A positively tilted mid-level trough will move off the East Coast on
   Sunday with a secondary trough across northern Mexico. At the
   surface, a cold front will extend from a surface low across the
   western Atlantic through the Carolinas and Georgia and into the
   central Gulf of Mexico. 

   ...Eastern Carolinas and Southeast Georgia...
   A few thunderstorms may occur along the surface front from the
   eastern Carolinas into eastern Georgia during the day Sunday, but
   limited instability and shear should limit any severe weather
   threat. 

   ...South Texas...
   Elevated thunderstorms are possible in the post frontal airmass
   across south Texas Sunday afternoon/night ahead of the mid-level
   shortwave trough. Forecast soundings show enough buoyancy for
   thunderstorms and moderate to strong shear, but instability will
   likely remain too limited for any severe threat.

   ..Bentley.. 12/17/2021

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   NOTE: THE NEXT DAY 3 OUTLOOK IS SCHEDULED BY 0830Z