MESOSCALE DISCUSSION 0819
   NWS STORM PREDICTION CENTER NORMAN OK
   0705 PM CDT WED MAY 13 2009
   
   AREAS AFFECTED...NERN MO/SERN IA/W CENTRAL IL
   
   CONCERNING...TORNADO WATCH 293...
   
   VALID 140005Z - 140130Z
   
   THE SEVERE WEATHER THREAT FOR TORNADO WATCH 293 CONTINUES.
   
   SEVERE/TORNADO THREAT CONTINUES AS STORMS CONTINUE MOVING EWD ACROSS
   THE ERN HALF OF THE WW.
   
   STRONG/SEVERE STORMS CONTINUE...WITH A LARGE/PERSISTENTLY-ROTATING
   SUPERCELL CROSSING THE KNOX/CLARK/LEWIS COUNTY AREAS ATTM.  THIS
   STORM HAS A HISTORY OF PRODUCING A DAMAGING TORNADO...AND CONTINUES
   TO EXHIBIT STRONG ROTATION.  
   
   MODERATE INSTABILITY/AROUND 2000 J/KG MIXED-LAYER CAPE/ REMAINS IN
   PLACE AHEAD OF THE CONVECTIVE BAND...WHICH WILL FUEL ONGOING
   CONVECTION AND ASSOCIATED THREAT FOR HAIL AND DAMAGING WINDS. 
   ADDITIONALLY...WITH LOCALLY-BACKED/SLY SURFACE FLOW INVOF THE
   WNW-ESE WARM FRONT /STRETCHING FROM NERN MO TO SWRN
   INDIANA/...THREAT FOR TORNADOES WILL PERSIST OVER THE NEXT COUPLE OF
   HOURS.
   
   ..GOSS.. 05/14/2009
   
   
   ATTN...WFO...ILX...LSX...DVN...EAX...
   
   LAT...LON   39179231 39649300 40489196 41359221 42029069 41428973
               39298982 39179231