MESOSCALE DISCUSSION 1432
   NWS STORM PREDICTION CENTER NORMAN OK
   0603 PM CDT SAT JUL 04 2009
   
   AREAS AFFECTED...NERN NV...NWRN UT...SERN ID
   
   CONCERNING...SEVERE POTENTIAL...WATCH UNLIKELY 
   
   VALID 042303Z - 050000Z
   
   ISOLD STRONG TO SEVERE STORMS CAN BE EXPECTED OVER THE NEXT FEW
   HOURS...WITH PRIMARY THREATS OF DMGG WINDS/LARGE HAIL. DUE TO ISOLD
   NATURE...A WW IS NOT ANTICIPATED.
   
   THUNDERSTORMS HAVE INCREASED ACROSS NERN NV INTO SWRN ID AHEAD OF A
   WEAK VORT MAX MOVING INTO NERN NV. ABOVE NORMAL MOISTURE AND WEAK
   INSTABILITY SHOULD BE SUPPORTIVE OF ADDITIONAL DEVELOPMENT OVER THE
   HIGHER TERRAIN...ALTHOUGH DRIER AIR ADVECTING NEWD MAY LIMIT THE
   TEMPORAL THREAT COMPARED TO PREVIOUS DAYS. 30 KTS EFFECTIVE SHEAR
   WILL BE SUPPORTIVE OF BRIEF ROTATION...ESPECIALLY IN FAVORED TERRAIN
   INDUCED CIRCULATIONS. LARGE TEMPERATURE/DEW POINT SPREADS AND STEEP
   LOW LEVEL LAPSE RATES WILL LEAD TO ISOLD DMGG WIND GUSTS AS
   EVAPORATIVE COOLING/PRECIPITATION LOADING ENHANCES DOWNDRAFT WINDS.
   DOWNDRAFTS MAY ACCELERATE INTO LOWER VALLEYS TOWARDS GREATER
   INSTABILITY...AND MAY BE WELL REMOVED FROM THE PARENT STORM.
   
   ..HURLBUT.. 07/04/2009
   
   
   ATTN...WFO...SLC...PIH...BOI...LKN...
   
   LAT...LON   40241319 39601381 39421532 40001650 40841652 42281415
               43011365 43411351 43621179 43081122 41861282 40981300
               40241319