MESOSCALE DISCUSSION 1131
   NWS STORM PREDICTION CENTER NORMAN OK
   0552 PM CDT TUE MAY 27 2003
   
   AREAS AFFECTED...WRN SD/NEB...SERN WY...NERN CO
   
   CONCERNING...SEVERE THUNDERSTORM POTENTIAL 
   
   VALID 272252Z - 280045Z
   
   TSTMS MAY INCREASE ALONG/BEHIND SWD MOVING COLD FRONT OVER NEB...AND
   NEAR FRONT/LEE-TROUGH INTERSECTION ACROSS NRN CO OVER THE NEXT FEW
   HOURS. GENERALLY WEAK INSTABILITY AND SHEAR SHOULD KEEP THIS
   ACTIVITY LIMITED IN AREAL COVERAGE AND INTENSITY. NO WATCH IS
   ANTICIPATED AT THIS TIME.
   
   COMBINATION OF FRONTAL LIFT/UPPER DIFFLUENCE AND UPSLOPE FLOW SHOULD
   PROMOTE THE DEVELOPMENT OF A FEW MORE STORMS FROM SWRN SD...ACROSS
   THE NEB PNHDL AND WRN NEB...WWD TO SERN WY AND SWD ALONG THE FRONT
   RANGE OF CO. UNCAPPED 100MB MLCAPE ON THE ORDER OF 500 J/KG MAY
   SUPPORT A FEW VIGOROUS HIGH-BASED STORMS WITHIN WEAKLY SHEARED DEEP
   LAYER FLOW. STRENGTH OF MID LEVEL LAPSE RATES COULD SUPPORT SOME
   MARGINAL HAIL FROM THIS ACTIVITY WHILE DRY SUB CLOUD LAYER AND
   SURFACE DEWPOINT DEPRESSIONS AROUND 30F CONTRIBUTE TO POTENTIAL FOR
   A FEW STRONG DOWNDRAFTS. WHILE STORMS MAY BRIEFLY ORGANIZE/PERSIST
   ALONG THE BOUNDARIES AND/OR TERRAIN..OVERALL HAZARD FROM THIS
   CONVECTION CURRENTLY APPEARS TOO LIMITED FOR A WATCH.
   
   ..CARBIN.. 05/27/2003
   
   
   ATTN...WFO...LBF...UNR...PUB...BOU...CYS...
   
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