MESOSCALE DISCUSSION 0672
   NWS STORM PREDICTION CENTER NORMAN OK
   0347 PM CDT SAT MAY 02 2009
   
   AREAS AFFECTED...NERN OK...SRN AR
   
   CONCERNING...SEVERE THUNDERSTORM WATCH 225...226...
   
   VALID 022047Z - 022145Z
   
   THE SEVERE WEATHER THREAT FOR SEVERE THUNDERSTORM WATCH
   225...226...CONTINUES.
   
   THUNDERSTORM CLUSTERS CONTINUE TO EVOLVE INVOF THE METROPLEX OF
   NCNTRL TX...IMMEDIATELY AHEAD OF COLD FRONT.  THIS ACTIVITY WILL
   PROGRESS ALONG/NORTH OF STATIONARY BOUNDARY THAT IS DRAPED ALONG THE
   RED RIVER INTO SRN AR.  WITH TIME A FEW DISCRETE SUPERCELLS SHOULD
   EVOLVE IN THE ARKLATEX REGION WHERE PARTIAL SUNSHINE HAS STEEPENED
   LOW LEVEL LAPSE RATES.  GREATEST RISK OF TORNADOES SHOULD BE WITH
   ISOLATED ACTIVITY AHEAD OF EVOLVING MCS CLUSTER OVER NCNTRL TX.
   
   ..DARROW.. 05/02/2009
   
   
   ATTN...WFO...JAN...LZK...SHV...FWD...
   
   LAT...LON   33679587 33719421 33809135 33079138 33039355 32689501
               32379609 32809686 33679587