SPC MESOSCALE DISCUSSION 1253 FOR ECNTRL/SERN IA...EXTREME NERN MO
   AND EXTREME NWRN IL
   CONCERNING...SEVERE THUNDERSTORM WATCH 476...
   
   VALID 262246Z - 270100Z
   
   LINE OF TSTMS APPEARS TO HAVE DIMINISHED INTO A COUPLE TSTMS
   CLUSTERS ACROSS ERN IA.  SURFACE ANALYSIS INDICATES THAT A SMALL
   WEDGE OVER SERN IA WAS ABLE TO RECOVER FROM EARLIER MORNING MCS AND
   CURRENT TSTMS SHOULD BE MAINTAINED AS THEY MOVE SEWD INTO THE MS
   RVR VLY WITH THE POTENTIAL FOR DAMAGING WINDS.  SEVERE THREAT WILL
   LIKELY DIMINISH LATER THIS EVENING AS INSTABILITY WANES AND
   ACTIVITY MOVES INTO A MORE STABLE AIR MASS OVER NWRN IL.
   
   ..RACY.. 06/26/02