MESOSCALE DISCUSSION 0961
   NWS STORM PREDICTION CENTER NORMAN OK
   0310 PM CDT WED MAY 25 2011
   
   AREAS AFFECTED...SE MO...SRN IL...WRN KY
   
   CONCERNING...TORNADO WATCH 370...
   
   VALID 252010Z - 252145Z
   
   THE SEVERE WEATHER THREAT FOR TORNADO WATCH 370 CONTINUES.
   
   THE TORNADO THREAT IS EXPECTED TO MARKEDLY INCREASE ACROSS SE
   MO...FAR SRN IL...WRN KY OVER THE NEXT 1 TO 2 HOURS. SUPERCELLS WITH
   LONG-TRACK TORNADOES ARE FORECAST TO DEVELOP AND MOVE NEWD ACROSS
   TORNADO WATCH 370.
   
   NUMEROUS STRONG TO SEVERE THUNDERSTORMS ARE CURRENTLY ONGOING ACROSS
   THE WRN EDGE OF THE INSTABILITY AXIS FROM CNTRL MO SWD INTO NRN AR.
   AHEAD OF THIS ACTIVITY ACROSS THE WARM SECTOR...MLCAPE VALUES ARE
   ESTIMATED TO BE IN THE 2500 TO 4000 J/KG RANGE. AT MID-LEVELS...A 65
   TO 75 KT MID-LEVEL JET IS CURRENTLY LOCATED ACROSS AR WITH THE NOSE
   OF THE JET MOVING INTO WRN KY. THIS FEATURE IS ENHANCING THE LIFT
   AND STRONG DEEP LAYER SHEAR ALREADY IN PLACE CREATING AN ENVIRONMENT
   VERY FAVORABLE FOR SUPERCELLS AND TORNADOES. IN ADDITION...A 40 TO
   55 KT LOW-LEVEL JET IS LOCATED ACROSS ERN AR. AS THE LOW-LEVEL JET
   MOVES NEWD INTO WRN KY LATE THIS AFTERNOON...LOW-LEVEL SHEAR WILL BE
   VERY FAVORABLE FOR LONG-TRACK STRONG TORNADOES. THE MOST PERSISTENT
   AND DOMINANT SUPERCELLS MAY HAVE A POTENTIAL FOR VIOLENT TORNADOES.
   
   ..BROYLES.. 05/25/2011
   
   
   ATTN...WFO...LMK...OHX...PAH...MEG...LSX...LZK...SGF...
   
   LAT...LON   37758688 38058841 37939000 37229137 36779165 36509147
               36349090 36318951 36328877 36368781 36568726 36958675
               37758688