MESOSCALE DISCUSSION 0935
   NWS STORM PREDICTION CENTER NORMAN OK
   0455 PM CDT TUE MAY 24 2011
   
   AREAS AFFECTED...NERN/E-CNTRL MO...W-CNTRL IL
   
   CONCERNING...SEVERE THUNDERSTORM WATCH 359...
   
   VALID 242155Z - 242300Z
   
   THE SEVERE WEATHER THREAT FOR SEVERE THUNDERSTORM WATCH 359
   CONTINUES.
   
   REGIONAL RADAR IMAGERY INDICATES FORWARD PROPAGATING QLCS HAS
   UNDERGONE SIGNIFICANT WEAKENING DURING THE LAST HR AS IT ENCOUNTERS
   A MORE STABLE ENVIRONMENT. MEANWHILE OVER FAR S-SWRN PORTIONS OF THE
   WATCH...SWD TRAILING OUTFLOW BOUNDARY IS INTERCEPTING NWD RETURN OF
   RICH LOW-LEVEL MOISTURE /SURFACE DEWPOINTS IN THE MID TO UPR 60S/.
   RUC SOUNDINGS INDICATE AIRMASS WILL BE MODERATELY UNSTABLE AND
   UNCAPPED OVER THIS AREA...WHICH COULD FAVOR INITIATION OF NEW STORMS
   DURING THE NEXT FEW HRS. IF NEW ACTIVITY OCCURS...SHEAR PROFILES
   WOULD BE FAVORABLE FOR SUPERCELLS. OTHERWISE...AS QLCS CONTINUES TO
   DECAY DURING THE NEXT HR OR TWO OVER NERN/E-CNTRL MO AND W-CNTRL
   IL...THREAT FOR DAMAGING WINDS/LARGE HAIL SHOULD BEGIN TO WANE.
   
   ..GARNER.. 05/24/2011
   
   
   ATTN...WFO...ILX...LSX...SGF...EAX...
   
   LAT...LON   40239233 40139036 39519034 39518968 38218971 38009062
               38199079 38329237 38559279 39269231 40239233