MESOSCALE DISCUSSION 0539
   NWS STORM PREDICTION CENTER NORMAN OK
   0509 PM CDT SAT APR 23 2011
   
   AREAS AFFECTED...SRN/SERN MO INTO SRN IL/WRN KY
   
   CONCERNING...SEVERE POTENTIAL...WATCH POSSIBLE 
   
   VALID 232209Z - 240015Z
   
   STORMS SHOULD PERSIST FOR SEVERAL MORE HOURS ACROSS SRN MO...MOVING
   EWD ACROSS THE MS RIVER BY EVENING WITH MAINLY A HAIL THREAT. A
   SEVERE THUNDERSTORM WATCH MAY BE NEEDED.
   
   SURFACE ANALYSIS SHOWS A BOUNDARY ACROSS NRN AR INTO SWRN KY...WITH
   RAIN COOLED AIR TO THE N. HOWEVER...A SWLY LOW LEVEL JET IS
   RESULTING IN ISENTROPIC LIFT N OF THE BOUNDARY. DEEP LAYER WIND
   FIELDS WILL CONTINUE TO FAVOR ORGANIZED SEVERE...AND THE MAIN THREAT
   SHOULD BE HAIL GIVEN A RELATIVELY STABLE BOUNDARY LAYER.
   HOWEVER...AREAS ALONG THE SURFACE BOUNDARY COULD SEE POTENTIALLY
   STRONG/DAMAGING WINDS ACROSS FAR NRN AR...THE MO BOOTHEEL INTO SWRN
   KY/FAR SRN IL IF CONVECTION TO THE WEST CAN CONGEAL INTO AN MCS.
   
   ..JEWELL.. 04/23/2011
   
   
   ATTN...WFO...OHX...PAH...MEG...LSX...LZK...SGF...TSA...
   
   LAT...LON   36778763 36318940 36149090 36239242 36459342 36989357
               37589272 37719140 37838946 37888841 37788772 37408729
               37038733 36778763