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Mesoscale Discussion 439
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   MESOSCALE DISCUSSION 0439
   NWS STORM PREDICTION CENTER NORMAN OK
   0653 PM CDT FRI APR 10 2009
   
   AREAS AFFECTED...NERN TN/ERN KY/FAR SWRN VA
   
   CONCERNING...TORNADO WATCH 133...
   
   VALID 102353Z - 110100Z
   
   THE SEVERE WEATHER THREAT FOR TORNADO WATCH 133 CONTINUES.
   
   SEVERE/TORNADO THREAT HAS DIMINISHED ACROSS WW 133.  
   
   LATEST RADAR IMAGERY SHOWS AN INITIAL AREA OF RAIN/THUNDERSTORMS NOW
   MOVING ACROSS THE APPALACHIANS...LEAVING A RELATIVELY COOL/STABLE
   LOW-LEVEL AIRMASS IN ITS WAKE.  WHILE COLD AIR/STEEP LAPSE RATES
   ALOFT CONTINUE SPREADING ACROSS THIS REGION IN CONJUNCTION WITH THE
   UPPER CIRCULATION...ATTEMPTS AT CONVECTIVE REDEVELOPMENT BACK CLOSER
   TO THE COLD POOL HAVE BEEN WEAK -- LIMITED BY THE OVERALL LACK OF
   INSTABILITY.  EXPECT ANY REMAINING SEVERE POTENTIAL OVER VALID
   PORTIONS OF WW TO BE QUITE LIMITED.
   
   ..GOSS.. 04/10/2009
   
   
   ATTN...WFO...RNK...RLX...GSP...MRX...JKL...
   
   LAT...LON   35998380 36248411 36598378 37618212 37218154 36548156
               35948204 35998380 
   
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