MESOSCALE DISCUSSION 2113
   NWS STORM PREDICTION CENTER NORMAN OK
   0729 PM CDT SAT SEP 03 2011
   
   AREAS AFFECTED...NRN IND...SRN MI...FAR NWRN OH
   
   CONCERNING...SEVERE THUNDERSTORM WATCH 829...
   
   VALID 040029Z - 040130Z
   
   THE SEVERE WEATHER THREAT FOR SEVERE THUNDERSTORM WATCH 829
   CONTINUES.
   
   THE THREAT OF DMGG WIND AND LARGE HAIL CONTINUES ACROSS NRN
   IND...SRN MI...AND FAR NWRN OH. SEVERE THREAT SHOULD GRADUALLY
   DIMINISH BY THE EXPIRATION TIME OF 04Z...AND AN ADDITIONAL WW WILL
   LIKELY NOT BE NECESSARY.
   
   WRN PORTIONS OF THE WW HAVE BEEN CANCELLED AS STABILIZATION HAS
   OCCURRED IN A RAIN COOLED AIR MASS. GIVEN THE ONSET OF DIURNAL
   COOLING...SURFACE-BASED CONVECTION IS BECOMING DECREASINGLY
   EVIDENT...AND AS LOW-LEVEL LAPSE RATES CONTINUE TO WEAKEN...THE
   THREAT OF DMGG WINDS WILL LESSEN OVER TIME. HOWEVER...A NARROW
   CORRIDOR ACROSS NRN IND INTO SERN MI /WHERE HOT MAXIMUM TEMPERATURES
   WERE OBSERVED/ STILL REMAINS SUFFICIENTLY UNSTABLE TO SUPPORT STRONG
   TO SEVERE THUNDERSTORM DEVELOPMENT OVER THE NEXT HOUR OR TWO.
   
   ..HURLBUT.. 09/04/2011
   
   
   ATTN...WFO...CLE...DTX...IWX...GRR...IND...
   
   LAT...LON   40588709 40888693 41998573 42958421 43868263 43838217
               43418218 42638273 42278316 41858341 41508418 40988594
               40608624 40588709