MESOSCALE DISCUSSION 1395
   NWS STORM PREDICTION CENTER NORMAN OK
   1259 PM CDT THU JUL 05 2007
   
   AREAS AFFECTED...ERN IND/OH
   
   CONCERNING...SEVERE POTENTIAL...WATCH POSSIBLE 
   
   VALID 051759Z - 052000Z
   
   ...SEVERE THREAT APPEARS TO BE INCREASING ACROSS ERN IND THROUGH OH
   AND A WATCH MAY BE ISSUED LATER THIS AFTN...
   
   VISIBLE SATELLITE AND RADAR CONFIRM INCREASE IN STORMS ACROSS ERN
   IND AND NW OH AHEAD OF SHORTWAVE TROUGH APPROACHING FROM THE
   NORTHWEST. AIRMASS HAS BECOME MODERATELY UNSTABLE WITH MLCAPE VALUES
   ABOVE 1000-1500 J/KG. UPSTREAM PROFILER DATA FROM WOLCOTT IND/BLUE
   RIVER WI SHOW MODERATELY STRONG UNIDIRECTIONAL SHEAR FROM 30-45
   KT...AND THIS WILL SUPPORT MULTICELL ORGANIZATION AND SEVERE THREAT
   THIS AFTN. TEMPS ALOFT ARE COLDER THAN FARTHER EAST...BUT THE AREA
   IS A BIT FARTHER REMOVED FROM THE UPSTREAM VORT MAX NEAR GREEN BAY.
   SO...A WATCH WILL LIKELY BE NEEDED LATER THIS AFTN GIVEN INCREASING
   LARGE SCALE FORCING FOR ASCENT/DESTABILIZATION.
   
   ..TAYLOR.. 07/05/2007
   
   
   ATTN...WFO...PBZ...RLX...CLE...ILN...IWX...IND...
   
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