MESOSCALE DISCUSSION 0756
   NWS STORM PREDICTION CENTER NORMAN OK
   0318 PM CDT TUE MAY 21 2013
   
   AREAS AFFECTED...CNTRL INTO THE ARKLATEX
   
   CONCERNING...TORNADO WATCH 201...205...
   
   VALID 212018Z - 212145Z
   
   THE SEVERE WEATHER THREAT FOR TORNADO WATCH 201...205...CONTINUES.
   
   SUMMARY...A LINE OF SEVERE STORMS SHOULD CONTINUE TO BECOME BETTER
   ORGANIZED WITH WIDESPREAD DAMAGING WINDS LIKELY ACROSS NERN TX.
   OTHER STORMS SHOULD INCREASE IN COVERAGE FARTHER S ALONG OR JUST
   AHEAD OF THE COLD FRONT...WITH LARGE HAIL AND DAMAGING WINDS AND
   PERHAPS AN ISOLATED TORNADO.
   
   DISCUSSION...SEVERE STORMS CURRENTLY EXTEND FROM NEAR THE RED RIVER
   SWWD TOWARD THE DALLAS AREA...WITH A GENERAL UPSWING IN INTENSITY
   NOTED. WITH AMPLE INSTABILITY AHEAD OF THESE STORMS...THIS TREND
   SHOULD CONTINUE. GIVEN LINEAR STORM MODE...DAMAGING WINDS ARE LIKELY
   
   TO THE S...SUPERCELLS WERE RAPIDLY DEVELOPING NEAR THE SRN BORDER OF
   TORNADO WATCH 201...AND SHOULD CONTINUE INTO THE WATCH. THESE CELLS
   WILL HAVE A DISTINCT LARGE HAIL THREAT...AND COULD PRODUCE A TORNADO
   AS WELL BEFORE THE COLD FRONT OVERTAKES THEM. IF A SWD TREND IN
   DEVELOPMENT PERSISTS...NRN PORTIONS OF THE HOUSTON CWA MAY NEED TO
   BE INCLUDED IN A WATCH.
   
   ..JEWELL.. 05/21/2013
   
   
   ATTN...WFO...JAN...LZK...SHV...TSA...HGX...FWD...OUN...EWX...
   SJT...
   
   LAT...LON   31569202 31449527 31779528 30360002 30890004 31129942
               31559846 32179746 32709688 33239668 34179658 34549521
               34219522 34329201 31569202