MESOSCALE DISCUSSION 1851
   NWS STORM PREDICTION CENTER NORMAN OK
   1021 AM CDT THU AUG 04 2011
   
   AREAS AFFECTED...SERN MO / NERN AR / FAR WRN KY / WRN TN / NRN MS
   
   CONCERNING...SEVERE THUNDERSTORM WATCH 726...
   
   VALID 041521Z - 041645Z
   
   THE SEVERE WEATHER THREAT FOR SEVERE THUNDERSTORM WATCH 726
   CONTINUES.
   
   AN ISOLATED THREAT FOR DAMAGING WINDS CONTINUED ALONG LEADING EDGE
   OF MCS COLD POOL ADVANCING TOWARD THE MS RIVER WITH ISOLATED SEVERE
   WEATHER POSSIBLE WITH MORE RECENT TSTM DEVELOPMENT OVER WRN TN.
   
   LONG-LIVED MCS APPEARS TO BE IN THE PROCESS OF DECAY OVER SRN MO AS
   SYSTEM COLD POOL HAS OVERWHELMED AMBIENT SHEAR WITH GUST FRONT
   SURGING WELL AHEAD OF PARENT UPDRAFTS.  SOME POTENTIAL STILL EXISTS
   FOR LOCALLY DAMAGING WIND GUSTS IN CONJUNCTION WITH ANY ROBUST
   UPDRAFT DEVELOPMENT THAT CAN OCCUR ALONG THE LEADING EDGE OF THE
   COLD POOL SURGING EWD TOWARD CGI.
   
   ELSEWHERE...ISOLATED TSTM DEVELOPMENT HAS RECENTLY OCCURRED S OF MKL
   AT THE INTERSECTION OF MERGING OUTFLOW BOUNDARIES.  HERE...VERTICAL
   SHEAR IS RATHER WEAK...BUT THE PRESENCE OF A WARMING/DESTABILIZING
   BOUNDARY LAYER MAY SUPPORT VIGOROUS UP/DOWNDRAFT DEVELOPMENT WITH AN
   ATTENDANT RISK FOR DAMAGING WINDS.
   
   ..MEAD.. 08/04/2011
   
   
   ATTN...WFO...OHX...PAH...MEG...
   
   LAT...LON   36838991 37258969 37198907 36818815 35668810 35138830
               34988916 35288957 35848984 36838991