MESOSCALE DISCUSSION 0922
   NWS STORM PREDICTION CENTER NORMAN OK
   1037 AM CDT TUE MAY 24 2011
   
   AREAS AFFECTED...ERN CO...NW KS...SW NEB
   
   CONCERNING...SEVERE POTENTIAL...WATCH POSSIBLE 
   
   VALID 241537Z - 241700Z
   
   THE SEVERE THREAT SHOULD EXPAND NEWD ACROSS ERN CO INTO NW KS AND SW
   NEB BY EARLY THIS AFTERNOON. HAIL SHOULD BE THE PRIMARY THREAT BUT
   AN ISOLATED DAMAGING WIND GUST WILL ALSO BE POSSIBLE. WW ISSUANCE
   CAN NOT BE RULED OUT ACROSS THE REGION.
   
   A CLUSTER OF STRONG THUNDERSTORMS IS ONGOING ALONG THE PALMER DIVIDE
   AHEAD OF AN UPPER-LEVEL TROUGH LOCATED IN THE FOUR CORNERS REGION.
   INCREASING LARGE-SCALE ASCENT ASSOCIATED WITH THE UPPER-LEVEL TROUGH
   SHOULD RESULT IN A GRADUAL INCREASE IN CONVECTIVE COVERAGE OVER THE
   NEXT FEW HOURS. AS THE UPPER-LEVEL TROUGH APPROACHES FROM THE
   SOUTHWEST...STRONG DEEP LAYER SHEAR AND MODERATE DESTABILIZATION
   SHOULD RESULT IN AN INCREASE IN THE SEVERE THREAT EARLY THIS
   AFTERNOON. COLD TEMPS ALOFT WITH 500 MB TEMPS IN THE -14C TO 16C
   RANGE ALONG WITH STRONG DEEP LAYER SHEAR WILL FAVOR A HAIL THREAT
   WITH THE MORE INTENSE CELLS. AS THE CONVECTION INCREASES IN
   COVERAGE...AN ISOLATED WIND DAMAGE THREAT MAY ALSO DEVELOP
   ESPECIALLY IF A LINE-SEGMENT CAN ORGANIZE.
   
   ..BROYLES.. 05/24/2011
   
   
   ATTN...WFO...LBF...GLD...PUB...BOU...
   
   LAT...LON   40500089 40630265 40090388 39420456 38700422 38380280
               39520078 40500089