MESOSCALE DISCUSSION 0746
   NWS STORM PREDICTION CENTER NORMAN OK
   0635 PM CDT WED MAY 11 2011
   
   AREAS AFFECTED...EASTERN OK/WESTERN AR/SOUTHEAST KS/SOUTHWEST MO
   
   CONCERNING...SEVERE THUNDERSTORM WATCH 280...284...
   
   VALID 112335Z - 120030Z
   
   THE SEVERE WEATHER THREAT FOR SEVERE THUNDERSTORM WATCH
   280...284...CONTINUES.
   
   AN EXTENSIVE SQUALL LINE WILL CONTINUE TO POSE A RISK FOR DAMAGING
   WINDS OVER THE NEXT FEW HOURS ACROSS FAR EASTERN OK INTO WESTERN
   AR/SOUTHWEST MO...BUT A GRADUAL WEAKENING TREND IS ANTICIPATED
   THROUGH EARLY/MID EVENING. AN ADDITIONAL WATCH IS NOT ANTICIPATED TO
   THE EAST OF WW 280...ALTHOUGH PORTIONS OF WW 280 WILL BE
   TEMPORALLY/SPATIALLY EXTENDED PRIOR TO 00Z SCHEDULED EXPIRATION.
   
   EXTENSIVE SQUALL LINE CONTINUES TO PROGRESS EAST-NORTHEASTWARD AT
   AROUND 35-40 KT INTO WESTERN AR/ACROSS FAR NORTHEAST OK AND FAR
   SOUTHEAST KS AS OF 2330Z. CLAREMORE OK RECENTLY REPORTED A MEASURED
   52 KT WIND GUST. WITH TIME...IN SPITE OF COLD POOL DRIVEN
   MOMENTUM...A GRADUAL DECOUPLING OF THE BOUNDARY LAYER AND
   INCREASINGLY MORE STABLE INFLOW SHOULD LEAD TO WEAKENING TREND OVER
   THE NEXT FEW HOURS.
   
   ..GUYER.. 05/11/2011
   
   
   ATTN...WFO...LZK...SGF...SHV...TSA...ICT...
   
   LAT...LON   37029576 37449495 37559352 35829223 34309260 32799512
               34379457 35909537 37029576