MESOSCALE DISCUSSION 0930
   NWS STORM PREDICTION CENTER NORMAN OK
   0622 PM CDT TUE JUN 02 2009
   
   AREAS AFFECTED...ERN MO...CNTRL/SRN IL
   
   CONCERNING...SEVERE THUNDERSTORM WATCH 321...
   
   VALID 022322Z - 030045Z
   
   THE SEVERE WEATHER THREAT FOR SEVERE THUNDERSTORM WATCH 321
   CONTINUES.
   
   SVR TSTM WATCH 321 IS SET TO EXPIRE AT 01Z.  IT DOES NOT APPEAR THAT
   IT WILL NEED TO BE EXTENDED OR REPLACED.
   
   MCV IS EVIDENT 40 WNW KSPI AND IS MOVING VERY SLOWLY EWD ALONG THE
   PRIMARY SYNOPTIC FRONT SITUATED EWD INTO CNTRL IND.  THIS FEATURE
   MAY BE ENHANCING CONVECTIVE ACTIVITY ALONG NRN EDGES OF THE WW. 
   HOWEVER...TSTMS HAVE LARGELY BEEN SUB-SVR SINCE 22Z OWING TO WEAK
   MID-TROPOSPHERIC LAPSE RATES...WEAKENING DEEP LAYER SHEAR AND
   CONVECTIVE OVERTURNING.  TSTMS WILL CONTINUE TO BE SCTD ACROSS THE
   REGION FOR MOST OF THE EVENING...BUT ASIDE FROM AN ISOLD PULSE SVR
   STORM WITH DMGG WINDS/SMALL HAIL...DO NOT EXPECT WIDESPREAD SVR
   WEATHER.
   
   ..RACY.. 06/02/2009
   
   
   ATTN...WFO...PAH...ILX...LSX...
   
   LAT...LON   40049209 40218854 39248798 38018860 37709043 40049209