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Turning Stormy in the Northwest

An active fall storm pattern developing in the Pacific Northwest this week will bring areas of heavy rain and high elevation snow. Northern California will benefit from rainfall this week that will aid firefighters given the recent large wildfires. Read More >

Mesoscale Discussion #986 issued at 1542 UTC
   MESOSCALE DISCUSSION 0986
   NWS STORM PREDICTION CENTER NORMAN OK
   1042 AM CDT FRI MAY 26 2006
 

  
   AREAS AFFECTED...THE CNTRL APPALACHIANS
 

  
   CONCERNING...SEVERE THUNDERSTORM POTENTIAL 
 

  
   VALID 261542Z - 261745Z
 

  
   A WW IS NOT ANTICIPATED IN THE NEAR TERM...BUT CONVECTIVE TRENDS/
   POTENTIAL IS BEING MONITORED.
 

  
   WEAKENING UPPER TROUGH CONTINUES TO SLOWLY SHIFT EASTWARD INTO/
   THROUGH THE LOWER GREAT LAKES/OHIO VALLEY REGION...AND LEADING EDGE
   OF STRONGER MID-LEVEL FORCING FOR UPWARD VERTICAL MOTION APPEARS TO
   BE SPREADING INTO THE CENTRAL APPALACHIANS.  BREAKS IN CLOUD COVER
   ...EVIDENT FROM PARTS OF SOUTH CENTRAL PENNSYLVANIA THROUGH THE
   MOUNTAINS OF NORTH CAROLINA...LIKELY WILL ALLOW SUFFICIENT HEATING
   FOR DESTABILIZATION AND INCREASING CONVECTIVE DEVELOPMENT THROUGH
   THE 17-19Z TIME FRAME. AS STORMS DEVELOP ALONG THE EASTERN SLOPES
   OF THE HIGHER TERRAIN...VERTICAL SHEAR BENEATH 30-40 KT CYCLONIC
   MID-LEVEL FLOW WILL BE FAVORABLE FOR AT LEAST BRIEF UPDRAFT ROTATION
   IN STRONGER CELLS.  CAPE IS GENERALLY WEAK...BUT COULD LOCALLY
   EXCEED 1000 J/KG...AND MAY SUPPORT A STORMS WITH HAIL APPROACHING OR
   BRIEFLY EXCEEDING SEVERE LIMITS.
 

  
   ..KERR.. 05/26/2006
 

  
   
   ATTN...WFO...CTP...LWX...RNK...PBZ...RLX...GSP...MRX...
   
   38118033 38737970 40197840 39297777 38417833 37007978
   35998139 35578243 35838290 36288312 36978195