MESOSCALE DISCUSSION 0869
   NWS STORM PREDICTION CENTER NORMAN OK
   0835 PM CDT FRI MAY 13 2005
   
   AREAS AFFECTED...ERN OH...WRN PA AND  THE WV PANHANDLE
   
   CONCERNING...SEVERE THUNDERSTORM WATCH 272...
   
   VALID 140135Z - 140300Z
   
   LINE OF STRONG TO SVR THUNDERSTORMS IS ANTICIPATED TO WEAKEN AS IT
   MOVES OUT OF WW 272 AND INTO WV PANHANDLE AND WRN PA OVER THE NEXT
   HOUR. THE WRN MOST COUNTIES OF WRN PA/WV PANHANDLE MAY SEE A LIMITED
   SVR THREAT...BUT A NEW WW EAST OF WW 272 IS NOT ANTICIPATED.
   
   WELL ORGANIZED CONVECTIVE LINE NOW OVER THE ERN ROW OF COUNTIES IN
   OH SHOULD BEGIN TO WEAKEN AS IT MOVES INTO AN ENVIRONMENT OF LESS
   THAN 500 J/KG OF MUCAPE BASED ON THE 00Z PIT SOUNDING. DESPITE
   THIS...ENOUGH MOMENTUM MAY AID IN A SVR THREAT PERSISTING INTO THE
   WRN MOST COUNTIES OF PA...WV PANHANDLE THROUGH 03Z. ATTM CURRENT
   TRENDS INDICATE THAT THE SVR THREAT WILL MOVE EAST OF WW 272 BY 03Z.
   THUS WW 272 WILL LIKELY BE CANCELLED EARLY.
   
   ..CROSBIE.. 05/14/2005
   
   
   ATTN...WFO...BUF...CTP...PBZ...RLX...CLE...
   
   42007965 42037983 41848085 41288080 40898083 40338116
   39748144 39548126 39758005 40227930 41827956