MESOSCALE DISCUSSION 1934
   NWS STORM PREDICTION CENTER NORMAN OK
   0147 AM CDT THU AUG 20 2009
   
   AREAS AFFECTED...SERN KS / SWRN MO / NERN OK / NWRN AR
   
   CONCERNING...TORNADO WATCH 719...
   
   VALID 200647Z - 200815Z
   
   THE SEVERE WEATHER THREAT FOR TORNADO WATCH 719 CONTINUES.
   
   THE THREAT FOR SEVERE STORMS CAPABLE OF DAMAGING WINDS...HAIL AND
   PERHAPS A TORNADO CONTINUES ACROSS CNTRL/ERN PARTS OF WW AREA.
   
   A COMPLEX MESOSCALE CONVECTIVE SYSTEM CONTINUES ACROSS MUCH OF WW
   AREA AS OF 0635Z WITH THE MOST INTENSE STORMS OBSERVED OVER LABETTE
   COUNTY KS INTO CRAIG...MAYES...OKMULGEE AND CREEK COUNTIES IN NERN
   OK.  THE OK STORMS HAVE EXHIBITED SOME WEAKENING OVER THE PAST HALF
   HOUR...PERHAPS DUE TO INCREASING CONVECTIVE INHIBITION ACROSS WARM
   SECTOR.  HOWEVER...STRENGTHENING/DEEPENING COLD POOL ASSOCIATED WITH
   PRIMARY CONVECTIVE SYSTEM OVER SRN MO/SERN KS...AND APPROACH OF
   SYNOPTIC COLD FRONT...AND IT/S INTERACTION WITH 40-50 KT SWLY LLJ
   SHOULD SERVE TO SUSTAIN VIGOROUS UPDRAFTS CAPABLE OF DAMAGING WINDS
   AND HAIL.  VERY STRONG LOW-LEVEL SHEAR OBSERVED BY AREA
   PROFILERS/VWPS SUGGESTS THAT A TORNADO THREAT STILL EXISTS WITH ANY
   SURFACE-BASED STORMS THAT CAN REMAIN MORE DISCRETE.
   
   ..MEAD.. 08/20/2009
   
   
   ATTN...WFO...SGF...TSA...ICT...
   
   LAT...LON   36029606 37249564 37699497 37899448 37779377 37549326
               37009333 36449362 35709485 36029606