MESOSCALE DISCUSSION 0817
   NWS STORM PREDICTION CENTER NORMAN OK
   0605 PM CDT WED MAY 13 2009
   
   AREAS AFFECTED...SRN IL/SWRN INDIANA
   
   CONCERNING...TORNADO WATCH 294...
   
   VALID 132305Z - 140030Z
   
   THE SEVERE WEATHER THREAT FOR TORNADO WATCH 294 CONTINUES.
   
   LIMITED SEVERE/TORNADO THREAT CONTINUES ACROSS THE ERN HALF OF WW
   294.
   
   THUNDERSTORMS CONTINUE NEAR AND E OF THE PERSISTENT LOW-LEVEL
   CIRCULATION/MCV -- NOW CENTERED OVER SRN IL.  STORMS HAVE REMAINED
   GENERALLY WEAKER THAN ANTICIPATED...WITH THIS AREA STILL E OF THE
   HEIGHT FALLS ASSOCIATED WITH THE LARGER-SCALE UPPER TROUGH CROSSING
   THE N CENTRAL CONUS.  WITH A STRONG W-E INSTABILITY GRADIENT -- AND
   THUS MUCH WEAKER INSTABILITY E OF THE CURRENT WW...A NEW WW E OF WW
   294 IS NOT EXPECTED ATTM.
   
   ..GOSS.. 05/13/2009
   
   
   ATTN...WFO...LMK...IND...PAH...ILX...LSX...
   
   LAT...LON   37198935 37698971 39088865 39658707 38978587 38018655
               37198935