MESOSCALE DISCUSSION 1250
   NWS STORM PREDICTION CENTER NORMAN OK
   0945 PM CDT FRI JUN 19 2009
   
   AREAS AFFECTED...PARTS OF CENTRAL AND SRN IL
   
   CONCERNING...SEVERE THUNDERSTORM WATCH 480...
   
   VALID 200245Z - 200315Z
   
   THE SEVERE WEATHER THREAT FOR SEVERE THUNDERSTORM WATCH 480
   CONTINUES.
   
   THE SEVERE THREAT IS SLOWLY DIMINISHING ACROSS CENTRAL AND SRN IL.
   
   LATEST RADAR LOOP CONTINUES TO SHOW A BAND OF STORMS MOVING EWD
   ACROSS E CENTRAL IL AHEAD OF THE COLD FRONT...WITH ISOLATED BUT
   CURRENTLY SUB-SEVERE STORMS S OF THIS BAND OVER PARTS OF SRN IL. 
   OBJECTIVE ANALYSES SHOW A RAPIDLY STABILIZING AIRMASS ACROSS
   IL/INDIANA...IN RESPONSE TO BOTH THE WIDESPREAD PRIOR CONVECTION AND
   THE ONSET OF DIURNAL COOLING.
   
   DEEP-LAYER WIND FIELD REMAINS FAVORABLE...AND EXPECT THAT A FEW
   ISOLATED/STRONGER CELLS WILL EMERGE WITH TIME WHICH WILL BE CAPABLE
   OF PRODUCING ISOLATED SEVERE EVENTS.  HOWEVER...THREAT APPEARS
   LIMITED ENOUGH AT THIS POINT THAT NEW WW ISSUANCE IS NOT REQUIRED.
   
   ..GOSS.. 06/20/2009
   
   
   ATTN...WFO...IND...PAH...ILX...LSX...
   
   LAT...LON   39079106 39938859 40478751 38798748 38488781 38448866
               39039025 39079106