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Mesoscale Discussion 912
MD 912 graphic
   
   MESOSCALE DISCUSSION 0912
   NWS STORM PREDICTION CENTER NORMAN OK
   1238 PM CDT WED MAY 26 2004
   
   AREAS AFFECTED...ERN KY/WV/WRN AND CNTRL VA
   
   CONCERNING...SEVERE THUNDERSTORM POTENTIAL 
   
   VALID 261738Z - 261915Z
   
   TSTMS ARE EXPECTED TO INCREASE IN COVERAGE AND INTENSITY THROUGH THE
   AFTERNOON HOURS. CONVECTIVE TRENDS WILL BE MONITORED AND A WW MAY BE
   REQUIRED.
   
   TSTMS HAVE GRADUALLY INCREASED OVER THE MOUNTAINS OF FAR WRN VA OVER
   THE PAST HOUR FROM GILES COUNTY SWD INTO WASHINGTON COUNTY.
   MEANWHILE...LONG-LIVED SUPERCELL WITH A HISTORY OF LARGE HAIL
   PRODUCTION WAS LOCATED OVER MASON COUNTY WV MOVING ESEWD AT 40KTS.
   THOUGH HIGH CLOUDINESS IS TENDING TO OVERSPREAD REGION FROM THE
   W...PRESENCE OF DEWPOINTS IN THE 60S AND PARTIAL SUNSHINE IS
   CONTRIBUTING TO POCKETS OF MODERATE INSTABILITY WITH MLCAPES
   APPROACHING 1000-1500 J/KG. THIS COUPLED WITH STRONG WIND SHEAR
   PROFILE OBSERVED CURRENTLY ON CHARLESTON WV VWP SUGGESTS THE
   POTENTIAL FOR ORGANIZED TSTMS...INCLUDING SUPERCELLS WITH LARGE HAIL
   AND DAMAGING WINDS. 
   
   EXPECT WRN VA STORMS TO CONTINUE TO INTENSIFY AS THEY PROGRESS EWD
   THIS AFTERNOON. ADDITIONAL TSTMS CURRENTLY DEVELOPING DOWNSTREAM
   FROM ONGOING MCS WILL LIKELY MOVE OUT OF WW 293 WITHIN THE NEXT
   COUPLE OF HOURS. THUS...A NEW WW MAY BE REQUIRED E OF WW 293.
   
   ..MEAD.. 05/26/2004
   
   
   ATTN...WFO...AKQ...LWX...RNK...PBZ...RLX...MRX...JKL...
   
   39058155 38937704 36557875 36648417 
   
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