MESOSCALE DISCUSSION 1937
   NWS STORM PREDICTION CENTER NORMAN OK
   0654 PM CDT WED AUG 10 2011
   
   AREAS AFFECTED...CO...NE...KS
   
   CONCERNING...SEVERE THUNDERSTORM WATCH 764...
   
   VALID 102354Z - 110100Z
   
   THE SEVERE WEATHER THREAT FOR SEVERE THUNDERSTORM WATCH 764
   CONTINUES.
   
   SEVERAL SUPERCELLS ARE LIKELY PRODUCING VERY LARGE HAIL AND SHOULD
   CONTINUE TO PLAGUE PARTS OF NERN CO AND THE NEB PNHDL AREA THIS
   EVENING WITHIN SEVERE TSTM WATCH 764. THIS ACTIVITY IS LIKELY BEING
   SUSTAINED BY LOW THROUGH MID LEVEL ISENTROPIC ASCENT AMIDST A
   MODERATELY UNSTABLE AIR MASS WHERE VERTICAL SHEAR AND STEEP LAPSE
   RATES REMAIN SUPPORTIVE OF STORM ROTATION AND HAIL PRODUCTION.
   
   LATEST TRENDS INDICATE THESE CELLS ARE MAINTAINING INTENSITY WHILE
   DEVELOPING SEWD AROUND 25-30KT. LOW LEVEL THETAE AXIS AND FAVORABLE
   STORM INFLOW UP TO 30KT IN THE SFC TO 2KM LAYER MAY RESULT IN STORMS
   SPREADING SOUTH OUT OF WW 746. WASHINGTON COUNTY COLORADO MAY BE
   ADDED INTO WW 764 PER RECENT COORDINATION WITH WFO BOU.
   HOWEVER...WITH TIME...STORMS MAY MOVE INTO PORTIONS OF NWRN KS WHERE
   AN ADDITIONAL WATCH MAY BE NEEDED.
   
   ..CARBIN.. 08/10/2011
   
   
   ATTN...WFO...GID...LBF...DDC...GLD...BOU...CYS...
   
   LAT...LON   39690343 41440395 42580369 42870058 40700013 39499973
               38709995 38640250 39100314 39690343