MESOSCALE DISCUSSION 0910
   NWS STORM PREDICTION CENTER NORMAN OK
   1155 AM CDT WED MAY 26 2004
   
   AREAS AFFECTED...WRN/CNTRL PA SWD INTO WV/WRN MD
   
   CONCERNING...SEVERE THUNDERSTORM POTENTIAL 
   
   VALID 261655Z - 261830Z
   
   TSTMS ARE EXPECTED TO INCREASE IN COVERAGE AND INTENSITY THIS
   AFTERNOON AND CONVECTIVE TRENDS WILL BE MONITORED FOR POSSIBLE WW
   ISSUANCE.
   
   OVER THE PAST HALF HOUR...DEEPER CONVECTIVE ELEMENTS HAVE DEVELOPED
   OVER ARMSTRONG AND BUTLER COUNTIES OF WRN PA WITH ADDITIONAL MORE
   MATURE CONVECTIVE ACTIVITY FARTHER S OVER EXTREME SERN OH AND WRN
   WV. THOUGH HIGH-LEVEL CLOUDS HAVE SLOWED DAYTIME HEATING...
   MESOANALYSIS SHOWS TEMPERATURES WARMING THROUGH THE 70S AHEAD OF
   WEAK COLD FRONT/WIND SHIFT THAT EXTENDED FROM EXTREME PA INTO CNTRL
   OH AS OF 16Z.
   
   CONTINUED HEATING/MOISTENING OF PRE-FRONTAL AIRMASS WILL AID IN
   ADDITIONAL DESTABILIZATION THROUGH THE AFTERNOON HOURS WITH MLCAPES
   APPROACHING 1000-1500 J/KG. MOREOVER...INCREASED FORCING FOR ASCENT
   AHEAD OF SHORTWAVE TROUGH MOVING ACROSS SRN IL/IND SHOULD PROMOTE AN
   INCREASE IN STORM COVERAGE AND INTENSITY. RELATIVELY STRONG AND DEEP
   UNIDIRECTIONAL WIND FIELDS WILL SUPPORT ORGANIZED TSTMS CAPABLE OF
   ISOLATED LARGE HAIL AND DAMAGING WINDS. CONVECTIVE TRENDS WILL
   CONTINUE TO BE MONITORED AND A WW MAY BE REQUIRED IN THE NEXT COUPLE
   OF HOURS.
   
   ..MEAD.. 05/26/2004
   
   
   ATTN...WFO...BGM...CTP...LWX...RNK...PBZ...RLX...
   
   39098162 41037968 41977833 41807614 40387730 38777935
   37848050 38318219