MESOSCALE DISCUSSION 1430
   NWS STORM PREDICTION CENTER NORMAN OK
   1142 AM CDT TUE JUN 28 2011
   
   AREAS AFFECTED...SWRN AR...NERN TX...NRN LA...FAR SERN OK
   
   CONCERNING...SEVERE POTENTIAL...WATCH LIKELY 
   
   VALID 281642Z - 281815Z
   
   LARGE HAIL AND DAMAGING WIND GUSTS ARE EXPECTED ACROSS THE GREATER
   ARKLATEX AREA AND A WATCH IS LIKELY.
   
   STORMS OVER W CNTRL AR HAVE BECOME BETTER ORGANIZED ALONG WRN FRINGE
   OF EARLIER COLD POOL WHERE VERY STRONG INSTABILITY EXISTS. CONTINUED
   HEATING WILL LEAD TO FURTHER DESTABILIZATION AND UPDRAFT STRENGTH.
   RELATIVELY STEEP MID LEVEL LAPSE RATES AND AMPLE MOISTURE WILL LEAD
   TO LARGE HAIL...WHILE STEEPENING LOW LEVEL LAPSE RATES WITH TIME
   HELP DOWNBURST POTENTIAL WITH CONGEALING MULTICELLS.
   
   ..JEWELL.. 06/28/2011
   
   
   ATTN...WFO...JAN...LZK...SHV...TSA...FWD...OUN...
   
   LAT...LON   32099193 32029240 32239378 32839506 33909664 34219660
               34599612 34839531 34829428 34589299 34219234 33409200
               32099193