MESOSCALE DISCUSSION 2086
   NWS STORM PREDICTION CENTER NORMAN OK
   0320 PM CDT WED AUG 31 2011
   
   AREAS AFFECTED...SRN INTO E CNTRL MT
   
   CONCERNING...SEVERE POTENTIAL...WATCH POSSIBLE 
   
   VALID 312020Z - 312215Z
   
   STORMS SHOULD GRADUALLY INCREASE IN COVERAGE THROUGH THE
   EVENING...WITH SEVERE WIND AND MARGINAL HAIL POSSIBLE. A WW COULD BE
   NEEDED.
   
   VIS IMAGERY AND RADAR SHOW STORMS INCREASING ACROSS SWRN MT AND NWRN
   WY...IN A ZONE OF SWLY UPSLOPE FLOW...AND ALSO WHERE COOLING ALOFT
   CONTINUES. BOUNDARY LAYER DEWPOINTS IN THE 40S HAS GIVEN WAY TO
   MUCAPE TO ABOUT 1000-1500 J/KG. 
   
   WITH CONTINUED HEATING...AND LIFT WITH THE UPPER TROUGH...STORMS
   SHOULD CONTINUE TO INCREASE ALONG AND AHEAD OF THE COLD
   FRONT...WHERE CIN IS BEING ERODE BY DIFFERENTIAL COOLING. AMPLE
   FLOW/SHEAR EXISTS FOR FAST MOVING STORMS CAPABLE OF DAMAGING WIND
   GUSTS AND PERHAPS MARGINAL HAIL.
   
   ..JEWELL.. 08/31/2011
   
   
   ATTN...WFO...BYZ...GGW...TFX...
   
   LAT...LON   45930688 45330809 45100948 45191081 45841103 46810935
               47740820 48330715 48290629 47660559 46800578 45930688