MESOSCALE DISCUSSION 0517
   NWS STORM PREDICTION CENTER NORMAN OK
   0114 PM CDT FRI APR 22 2011
   
   AREAS AFFECTED...SRN IND...NWRN KY
   
   CONCERNING...SEVERE POTENTIAL...WATCH LIKELY 
   
   VALID 221814Z - 221915Z
   
   SEVERE THUNDERSTORM WATCH IS LIKELY WITH LINEAR STORM MODES GIVING
   DAMAGING WINDS AND LARGE HAIL.
   
   A SMALL...LONG-LIVED MCS HAS BECOME STRONGER OVER SERN IL AND MAY BE
   ENCOUNTERING PARCELS CLOSER TO THE DESTABILIZING BOUNDARY LAYER
   ALONG THE OHIO RIVER.  ALTHOUGH STILL SLIGHTLY ELEVATED...POTENTIAL
   FOR DAMAGING WINDS WILL INCREASE AS THE STORMS CONTINUE ESE INTO SRN
   IND AND PERHAPS NWRN KY THROUGH THE AFTERNOON.
   
   ..RACY.. 04/22/2011
   
   
   ATTN...WFO...ILN...LMK...IND...PAH...ILX...
   
   LAT...LON   39148812 39308549 39028498 38308496 37868514 37918624
               38128734 38478848 39148812