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Mesoscale Discussion 240
MD 240 graphic
   
   MESOSCALE DISCUSSION 0240
   NWS STORM PREDICTION CENTER NORMAN OK
   1255 PM CST THU MAR 13 2003
   
   AREAS AFFECTED...NERN TN...WRN NC...VA...ERN WV...WRN MD
   
   CONCERNING...SEVERE THUNDERSTORM POTENTIAL 
   
   VALID 131855Z - 132100Z
   
   A WATCH ISSUANCE IS BEING CONSIDERED FOR PORTIONS OF THESE AREAS
   IN THE NEXT FEW HOURS.
   
   RECENT VIS IMAGERY INDICATES SHALLOW TOPPED CONVECTION
   INSTIGATING TO THE EAST OF A SHORTWAVE TROUGH AMIDST A
   DESTABILIZING AIRMASS IN MUCH OF VA...ERN WV...INTO MD. ERE CENT
   SURFACE ANALYSIS SHOWS A SFC LOW IN WRN VA WITH A PRESSURE FALL
   CENTER IN MUCH OF CNTRL VA. SURFACE TEMPERATURES RANGE FROM THE
   MID 70S/LOW 80S WITH DEWPOINTS FROM THE LOW 50S TO LOW
   60S...SFCOA FIELDS SHOW MUCAPE VALUES FROM 500-1000 J/KG. THE
   BOUNDARY LAYER AIRMASS IN THIS REGION IS EXPECTED TO CONTINUE TO
   DESTABILIZE AS INCREASING MOISTURE ADVECTION FROM SC/NC IS
   EXPECTED THRU THE AFTERNOON HOURS. GIVEN PROXIMITY OF ENTRANCE
   REGION TO MID-UPPER LVL SPEED MAXIMUM...EXPECTED INCREASING
   MOISTURE ADVECTION...ADDITIONAL INSOLATION...AND FCST 0-6KM WINDS
   FROM 45-55 KTS...SOME ORGANIZED CONVECTION IS LIKELY IN THE NEXT
   FEW HOURS.
   
   ..NADEN.. 03/13/2003
   
   
   ATTN...WFO...AKQ...CTP...LWX...RAH...RNK...PBZ...RLX...CAE...GSP...MRX...JKL...FFC...
   
   36387949 34368176 34758511 36288373 38168126 39817828
   39307689 37667703 
   
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