MESOSCALE DISCUSSION 2034
   NWS STORM PREDICTION CENTER NORMAN OK
   1234 PM CDT SAT SEP 29 2007
   
   AREAS AFFECTED...NWRN CO...NERN UT...SRN WY
   
   CONCERNING...SEVERE POTENTIAL...WATCH UNLIKELY 
   
   VALID 291734Z - 291900Z
   
   THUNDERSTORMS ARE EXPECTED TO INCREASE IN COVERAGE THIS AFTERNOON
   OVER PARTS OF UT/CO/WY.  STRONGER CELLS IN THIS REGION WILL POSE A
   THREAT OF DAMAGING WINDS.  WW NOT ANTICIPATED AT THIS TIME.
   
   MORNING SATELLITE LOOPS SHOW A VIGOROUS UPPER TROUGH MOVING EASTWARD
   ACROSS NV...AND STRONG SOUTHWESTERLY MID LEVEL JET NOSING INTO
   WY/CO.  LATEST AZC PROFILER DATA SHOWS WINDS OF 80+ KNOTS AS LOW AS
   6KM AND CONTINUING TO STRENGTHEN.  VISIBLE IMAGERY SHOWS A ZONE OF
   MOSTLY CLEAR SKIES AND STRONG HEATING FROM SOUTHWEST UT INTO
   SOUTH-CENTRAL WY WHERE TEMPERATURES ARE WARMING RAPIDLY THROUGH THE
   60S.  COLD TEMPERATURES ALOFT AND STEEP LOW/MID LEVEL LAPSE RATES
   ARE RESULTING IN MARGINAL MUCAPE UP TO 500 J/KG.  STRONG DRYING WILL
   OCCUR FROM THE SOUTHWEST THIS AFTERNOON AS UPPER TROUGH APPROACHES. 
   HOWEVER...SCATTERED THUNDERSTORMS ARE LIKELY AHEAD OF DRYING FROM
   WESTERN CO INTO SOUTH-CENTRAL WY.  STEEP LOW LEVEL LAPSE RATES MAY
   ALLOW DOWNWARD TRANSFER OF MID LEVEL MOMENTUM...LEADING TO ISOLATED
   DAMAGING WIND GUSTS IN STRONGER CELLS.
   
   ..HART.. 09/29/2007
   
   
   ATTN...WFO...BOU...CYS...RIW...GJT...
   
   41030970 41990908 43080765 42360607 40780618 39330653
   39060769 39810885