MESOSCALE DISCUSSION 1042
   NWS STORM PREDICTION CENTER NORMAN OK
   0455 PM CDT SUN JUN 20 2010
   
   AREAS AFFECTED...N CNTRL WY/S CNTRL MT
   
   CONCERNING...SEVERE THUNDERSTORM WATCH 357...
   
   VALID 202155Z - 202300Z
   
   THE SEVERE WEATHER THREAT FOR SEVERE THUNDERSTORM WATCH 357
   CONTINUES.
   
   THREAT OF LARGE HAIL AND PERHAPS ISOLD DMGG WINDS CONTINUES FOR
   WW357. 
   
   18Z RIW SOUNDING SHOWED CONVECTIVE INHIBITION REMAINING OVER THE WW
   AREA...AND CONVECTION HAS MAINLY BEEN ELEVATED UP TIL THIS POINT.
   MODIFYING FOR CURRENT CONDITIONS...LITTLE...IF ANY CINH REMAINS AND
   STORMS ARE VERY LIKELY SURFACE BASED...OR NEAR SURFACE BASED. THIS
   WILL ALLOW A DMGG WIND THREAT TO DEVELOP IN ADDITION TO THE ONGOING
   THREAT OF LARGE HAIL AS LOW LEVEL LAPSE RATES CONTINUE TO STEEPEN.
   
   ..HURLBUT.. 06/20/2010
   
   
   ATTN...WFO...BYZ...RIW...TFX...
   
   LAT...LON   42530669 42490911 46711004 46710751 42530669