TZUTC: 0000   
   MSGID: 167661.weather@1:2320/105 2da8b592   
   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 160539   
   SWODY1   
   SPC AC 160537   
      
   Day 1 Convective Outlook   
   NWS Storm Prediction Center Norman OK   
   1137 PM CST Mon Dec 15 2025   
      
   Valid 161200Z - 171200Z   
      
   ...THERE IS A MARGINAL RISK OF SEVERE THUNDERSTORMS IN THE PACIFIC   
   NORTHWEST...   
      
   ...SUMMARY...   
   Sporadic severe gusts may accompany isolated thunderstorms across   
   parts of the Pacific Northwest on Tuesday night.   
      
   ...Pacific Northwest...   
   A vigorous shortwave trough will approach the Pacific Northwest   
   coast through tonight before shifting inland over WA during the   
   early morning Wednesday. A deepening surface cyclone will move   
   across southern BC towards southwest AB, with a Pacific cold front   
   trailing south-southwestward. Low-topped convection is expected to   
   accompany the front, initially approaching the WA coast by late   
   evening. Surface-based buoyancy will remain meager, but strong   
   gradient winds will shift from the southwest to west-northwest as   
   the front passes. Sporadic lightning flashes and strong to severe   
   gusts may accompany passage of this low-topped squall before it   
   subsides inland in western WA/OR.   
      
   Intense lower-level flow will likely peak in the overnight to early   
   morning hours. Buoyancy should remain quite limited along and east   
   of the Cascades, but most guidance indicates broken low-topped   
   convection should spread east along/ahead of the front amid   
   pronounced large-scale ascent. Background gradient winds will likely   
   be capable of producing severe gusts, and some of these may be   
   coincident with sporadic lightning flashes.   
      
   ..Grams/Wendt.. 12/16/2025   
      
   $$   
      
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