MESOSCALE DISCUSSION 1049
   NWS STORM PREDICTION CENTER NORMAN OK
   1234 PM CDT THU JUN 11 2009
   
   AREAS AFFECTED...CO FRONT RANGE
   
   CONCERNING...SEVERE POTENTIAL...WATCH POSSIBLE 
   
   VALID 111734Z - 111900Z
   
   THE THREAT FOR SEVERE STORMS INCLUDING SUPERCELLS IS POSSIBLE THIS
   AFTERNOON WITH THE THREAT FOR HAIL...DAMAGING WINDS AND PERHAPS A
   COUPLE OF TORNADOES.
   
   RECENT TRENDS IN VISIBLE SATELLITE...RADAR AND LIGHTNING DATA
   INDICATE DEEPENING CUMULUS/EARLY TSTM DEVELOPMENT OVER THE FRONT
   RANGE WITH THE STRONGEST UPDRAFTS OVER JEFFERSON COUNTY AS OF 1730Z.
   WATER VAPOR IMAGERY SUGGESTS THAT APPROACH OF MIDLEVEL IMPULSE OVER
   WRN CO IS LIKELY CONTRIBUTING TO THIS DEVELOPMENT.  WIDESPREAD
   CLOUDINESS HAS LIMITED HEATING OVER THE CO HIGH PLAINS SO FAR TODAY.
   HOWEVER...BREAKS IN THE CLOUDS COUPLED WITH THE PRESENCE OF STEEP
   MIDLEVEL LAPSE RATES AND DEWPOINTS IN THE LOW 50S SHOULD EVENTUALLY
   SUPPORT MLCAPE OF 500-1000 J/KG...AND AN INCREASE IN STORM COVERAGE
   AND INTENSITY.
   
   REGIONAL PROFILER NETWORK SHOWS THAT SOME INCREASE IN MID AND
   HIGH-LEVEL WIND FIELDS IS ASSOCIATED WITH THIS IMPULSE...RESULTING
   IN SUFFICIENT /30-40 KT/ DEEP-LAYER SHEAR FOR SUSTAINED/ROTATING
   UPDRAFTS.  HAIL AND LOCALLY DAMAGING WIND GUSTS WILL BE THE PRIMARY
   SEVERE THREATS...THOUGH A TORNADO OR TWO IS POSSIBLE WITH ANY
   STRONGER SUPERCELLS THAT MAY DEVELOP.
   
   ..MEAD.. 06/11/2009
   
   
   ATTN...WFO...PUB...BOU...
   
   LAT...LON   37400480 38270516 39250548 40090555 40670542 40870501
               40770437 40280367 38690354 37690345 37150367 37010423
               37400480