MESOSCALE DISCUSSION 1244
   NWS STORM PREDICTION CENTER NORMAN OK
   1233 PM CDT THU JUN 16 2011
   
   AREAS AFFECTED...OHIO VALLEY
   
   CONCERNING...SEVERE POTENTIAL...WATCH POSSIBLE 
   
   VALID 161733Z - 161830Z
   
   CONVECTIVE COVERAGE WILL GRADUALLY INCREASE THROUGH THE AFTERNOON
   ACROSS CNTRL/SRN OH...WITH OCCASIONAL STRONG TO SEVERE WINDS AND
   POTENTIALLY HAIL GIVEN A STRONGER UPDRAFT. 
   
   AMPLE SURFACE HEATING ACROSS CNTRL/SRN OH OWING TO BREAKS IN CLOUD
   COVER ARE GRADUALLY LEADING TO MARGINAL DESTABILIZATION ACROSS
   PORTIONS OF THE OH VALLEY...WITH AN INCREASE IN CONVECTION NOTED IN
   ADVANCE OF A MID LEVEL LOW OBSERVED ON WV IMAGERY /AS OF 1715Z/ NEAR
   THE MI/IND/OH BORDER. ALTHOUGH 12Z SOUNDINGS SHOW RELATIVELY WARM
   MID LEVELS...STEEPENING LOW LEVEL LAPSE RATES THIS AFTERNOON AND
   UNIDIRECTIONAL WINDS/STRAIGHT-LINE HODOGRAPHS MAY SUPPORT
   OCCASIONAL/BRIEF LOW TOPPED SPLITTING SUPERCELLS CAPABLE OF DMGG
   WINDS AND HAIL AS CONVECTION CONTINUES TO BECOME MORE ROBUST WITH
   TIME. CLOUD COVER ACROSS NWRN OH WILL GENERALLY LIMIT STRONGER
   SURFACE HEATING...WHILE A JUXTAPOSITION OF STRONGER SHEAR PROFILES
   AND MODEST DESTABILIZATION APPEARS MORE LIKELY ACROSS SRN/CNTRL OH.
   
   ..HURLBUT.. 06/16/2011
   
   
   ATTN...WFO...PBZ...RLX...CLE...ILN...IWX...
   
   LAT...LON   41588104 39528150 38808224 38818291 38888370 39408398
               40408405 41038358 41388257 41588104