MESOSCALE DISCUSSION 1931
   NWS STORM PREDICTION CENTER NORMAN OK
   1025 PM CDT WED AUG 19 2009
   
   AREAS AFFECTED...ERN KS
   
   CONCERNING...SEVERE THUNDERSTORM WATCH 718...
   
   VALID 200325Z - 200500Z
   
   THE SEVERE WEATHER THREAT FOR SEVERE THUNDERSTORM WATCH 718
   CONTINUES.
   
   AN ISOLATED SEVERE THREAT WILL CONTINUE ACROSS THE CNTRL AND ERN
   PART OF WW 718. HAIL AND A FEW DAMAGING WIND GUSTS WILL BE POSSIBLE
   AS THE LINE OF STORMS MOVES SEWD ACROSS ERN KS OVERNIGHT. ALTHOUGH
   THE SEVERE THREAT MAY BECOME INCREASINGLY ISOLATED...WW ISSUANCE CAN
   NOT BE RULED OUT SOUTHEAST OF WW 718 INTO WRN MO LATER TONIGHT.
   
   A LINE OF STRONG THUNDERSTORMS IN NE KS IS LOCATED JUST AHEAD OF A
   COLD FRONT IN A GRADIENT OF LOW-LEVEL MOISTURE WHERE SFC DEWPOINTS
   IN THE MID 60S F ARE HELPING TO CREATE MODERATE INSTABILITY. THIS
   ALONG WITH LOW-LEVEL CONVERGENCE ALONG THE FRONT...LARGE-SCALE
   ASCENT WITH A PLAINS UPPER-LEVEL TROUGH AND A STRENGTHENING
   LOW-LEVEL JET WILL PROVIDE STRONG SUPPORT FOR THE CONVECTION SEWD
   OVERNIGHT. THE LATEST PROFILER AT HILLSBORO KS SHOWS 45 KT OF 0-6 KM
   SHEAR WHICH COMBINED WITH COLD AIR ALOFT IN THE BASE OF THE
   UPPER-LEVEL TROUGH WILL BE FAVORABLE FOR ISOLATED LARGE HAIL.
   ALTHOUGH THE ACTIVITY IS LIKELY SLIGHTLY ELEVATED...A FEW DAMAGING
   WIND GUSTS COULD OCCUR ALONG THE I-35 CORRIDOR IN ERN KS.
   
   ..BROYLES.. 08/20/2009
   
   
   ATTN...WFO...SGF...EAX...OAX...TOP...ICT...GID...
   
   LAT...LON   37299596 37329653 37479651 37499781 37409778 37409844
               38519845 38519790 40019791 39999533 39689535 39639552
               39439555 39399515 38989516 38959503 37399509 37399597
               37299596