TZUTC: 0000   
   MSGID: 167840.weather@1:2320/105 2db09b80   
   PID: Synchronet 3.21a-Linux master/123f2d28a Jul 12 2025 GCC 12.2.0   
   TID: SBBSecho 3.28-Linux master/123f2d28a Jul 12 2025 GCC 12.2.0   
   BBSID: CAPCITY2   
   CHRS: ASCII 1   
   FORMAT: flowed   
   ACUS01 KWNS 220523   
   SWODY1   
   SPC AC 220521   
      
   Day 1 Convective Outlook   
   NWS Storm Prediction Center Norman OK   
   1121 PM CST Sun Dec 21 2025   
      
   Valid 221200Z - 231200Z   
      
   ...NO SEVERE THUNDERSTORM AREAS FORECAST...   
      
   ...SUMMARY...   
   Severe thunderstorms are not forecast today.   
      
   ...Discussion...   
      
   Midlevel short-wave trough, off the Pacific Northwest coast, is   
   forecast to advance inland around 23/00z before deamplifying as it   
   ejects into southwest Canada by the end of the period. Associated   
   surface front will also progress inland around 23/00z, and cooling   
   lower tropospheric profiles should lead to weak buoyancy along the   
   WA/OR coast. Low-topped convection may generate a flash or two of   
   lightning, but thunderstorms should otherwise remain quite sparse.   
      
   Late-evening water-vapor imagery depicts a weak short-wave trough   
   over northeast Mexico, lifting north in line with latest model   
   guidance. Deep southeasterly flow across south TX will maintain   
   moist profiles that should exhibit modest SBCAPE by late afternoon.   
   Forecast soundings also suggest deep-layer shear will remain quite   
   weak, and any convection that evolves across this region should   
   remain below severe levels.   
      
   ..Darrow/Squitieri.. 12/22/2025   
      
   $$   
      
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