MESOSCALE DISCUSSION 1735
   NWS STORM PREDICTION CENTER NORMAN OK
   0135 PM CDT FRI JUL 31 2009
   
   AREAS AFFECTED...CNTRL AND ERN SD...N CNTRL NEB
   
   CONCERNING...SEVERE POTENTIAL...WATCH UNLIKELY 
   
   VALID 311835Z - 312030Z
   
   STORMS WILL INCREASE ALONG A COLD FRONT WITH MARGINALLY SEVERE WIND
   GUSTS AND HAIL LIKELY. A WATCH IS NOT ANTICIPATED.
   
   A COLD FRONT CONTINUES TO SURGE SEWD ACROSS THE REGION ALONG WITH
   SURFACE HEATING AND NWD ADVECTION OF MID 50S F DEWPOINTS. WITH
   TIME...COOLING ALOFT WITH THE UPPER TROUGH...STRONG FORCING AND
   SURFACE HEATING WILL RESULT IN AN ERUPTION OF STORMS ALONG THE COLD
   FRONT. INSTABILITY LEVELS WILL REMAIN RELATIVELY LOW...BUT GIVEN
   STRONG DEEP LAYER WIND FIELDS AND STEEPENING LOW LEVEL LAPSE RATES
   THIS AFTERNOON STRONG TO SEVERE WIND GUSTS MAY OCCUR. SMALL HAIL MAY
   ALSO OCCUR WITH THE STRONGEST CORES. STORMS WILL MOVE QUICKLY SEWD
   AT 30-40 MPH REACHING SERN SD BY 00Z.
   
   ..JEWELL.. 07/31/2009
   
   
   ATTN...WFO...FSD...OAX...ABR...LBF...UNR...
   
   LAT...LON   44660020 45549931 45659843 45559792 45129762 44619725
               44029694 43209733 42539831 42179973 42110101 42130136
               42380178 42890167 43510127 44660020