MESOSCALE DISCUSSION 0605
   NWS STORM PREDICTION CENTER NORMAN OK
   0733 PM CDT TUE APR 26 2011
   
   AREAS AFFECTED...CNTRL/NRN IN...FAR NWRN OH...SRN/CNTRL LOWER MI
   
   CONCERNING...TORNADO WATCH 216...
   
   VALID 270033Z - 270130Z
   
   THE SEVERE WEATHER THREAT FOR TORNADO WATCH 216 CONTINUES.
   
   LOCALIZED SVR THREAT CONTINUES ACROSS TORNADO WATCH 216...WITH
   THUNDERSTORM ACTIVITY REMAINING FAIRLY DISCRETE. UPPER IMPULSE
   /EVIDENT ON WATER VAPOR IMAGERY/ IS NOW ENTERING SRN LOWER MI...BUT
   WEAK INSTABILITY /MLCAPE AROUND 500 J/KG PER DTX SOUNDING/ HAS
   LIMITED AREAL COVERAGE OF CONVECTION. NONETHELESS...FAVORABLE
   LOW-LEVEL SHEAR PROFILES /0-1 KM BULK SHEAR 31 KTS PER GRR VWP/ WILL
   CONTINUE TO SUPPORT AT LEAST SOME POTENTIAL FOR A TORNADO OVER THE
   NEXT HR OR TWO WITH THE STRONGER UPDRAFTS. SUBJECTIVELY ANALYZED SFC
   COLD FRONT HAS RECENTLY MOVED INTO NWRN IN...WITH CONVECTION
   INITIATING BUT STRUGGLING TO INTENSIFY...AND A DIMINISHED THREAT
   ACROSS CNTRL AND PORTIONS OF NRN IN.
   
   ..ROGERS.. 04/27/2011
   
   
   ATTN...WFO...CLE...ILN...DTX...APX...IWX...GRR...IND...ILX...
   
   LAT...LON   39498483 39538782 40348697 41568593 42728592 43208616
               44308551 44278185 39498483