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Mesoscale Discussion 625
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   MESOSCALE DISCUSSION 0625
   NWS STORM PREDICTION CENTER NORMAN OK
   0103 PM CDT WED APR 27 2011
   
   AREAS AFFECTED...SERN TN...FAR WRN NC
   
   CONCERNING...TORNADO WATCH 231...
   
   VALID 271803Z - 271900Z
   
   THE SEVERE WEATHER THREAT FOR TORNADO WATCH 231 CONTINUES.
   
   LATEST VIS SATELLITE IMAGERY SHOWS CLEARING SKIES ACROSS SERN TN AND
   FAR WRN NC...WHICH HAS ALLOWED SURFACE TEMPERATURES TO CLIMB INTO
   THE UPPER 70S OVER SRN PORTIONS OF WW 231. THE WARMING/DESTABILIZING
   BOUNDARY LAYER IS FAVORING INCREASING INSTABILITY/MLCAPE VALUES PER
   LATEST SFCOA GUIDANCE...WHICH WILL AID IN ONGOING THUNDERSTORM/MCS
   MAINTENANCE. THESE STORMS WILL CONTINUE TO POSE A THREAT FOR
   TORNADOES/DAMAGING WINDS GIVEN VERY FAVORABLE VWP AND RUC FORECAST
   WIND PROFILES. AN ADDITIONAL WW MAY BE ISSUED W OF WW 231 /REF
   UPCOMING ADDITIONAL MCD ADDRESSING THE UPSTREAM SVR WEATHER
   THREAT/...WHILE OVER SERN TN/FAR WRN NC...A NEW WATCH IS UNCERTAIN.
   HOWEVER...TRENDS IN DESTABILIZATION AND ONGOING CONVECTION WILL BE
   CLOSELY MONITORED OVER THE AREA.
   
   ..GARNER.. 04/27/2011
   
   
   ATTN...WFO...GSP...MRX...OHX...HUN...
   
   LAT...LON   35858581 36018361 34998362 34998589 35858581 
   
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Page last modified: April 27, 2011
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