MESOSCALE DISCUSSION 0611
   NWS STORM PREDICTION CENTER NORMAN OK
   0935 AM CDT SUN MAY 09 2004
   
   AREAS AFFECTED...CNTRL AND SRN LOWER MI...EXTREME NRN IND AND NRN OH
   
   CONCERNING...SEVERE THUNDERSTORM POTENTIAL 
   
   VALID 091435Z - 091530Z
   
   SRN LOWER MI...EXTREME NRN IND AND NRN OH WILL BE UPGRADED TO A
   SLIGHT RISK ON THE MORNING UPDATE. SEVERE STORMS ARE EXPECTED TO
   DEVELOP BY EARLY AFTERNOON WITH THREAT FOR HAIL AND ISOLATED
   DAMAGING WIND.
   
   THIS MORNING A QUASISTATIONARY FRONT EXTENDS ACROSS NRN OH WWD TO
   NEAR THE IND/MI BORDER. LOW LEVEL MOISTURE WITH SURFACE DEWPOINTS IN
   THE LOWER 60S EXIST IN WARM SECTOR S OF THE BOUNDARY UNDERNEATH
   STEEP MID LEVEL LAPSE RATES. LATEST VISIBLE IMAGERY SHOWS LITTLE IN
   THE WAY OF CLOUDS...SUGGESTING THIS AREA WILL RECEIVE SUBSTANTIAL
   HEATING THAT WILL CONTRIBUTE TO MODERATE INSTABILITY. WITH ONLY A
   WEAK CAP PRESENT...STORMS MAY DEVELOP BY 18Z.
   
   ..DIAL.. 05/09/2004
   
   
   ATTN...WFO...CLE...DTX...IWX...GRR...
   
   42848570 42038108 41128094 41248288 41848615