MESOSCALE DISCUSSION 0942
   NWS STORM PREDICTION CENTER NORMAN OK
   0644 PM CDT WED JUN 03 2009
   
   AREAS AFFECTED...NRN CA...SE ORE
   
   CONCERNING...SEVERE POTENTIAL...WATCH UNLIKELY 
   
   VALID 032344Z - 040115Z
   
   A SEVERE THREAT SHOULD CONTINUE ACROSS NRN CA AND SWRN ORE OVER THE
   NEXT FEW HOURS. HAIL AND DAMAGING WIND GUSTS WILL BE POSSIBLE WITH
   THE STRONGER CELLS. THE THREAT SHOULD REMAIN TOO ISOLATED TO WARRANT
   THE ISSUANCE OF A WW.
   
   THUNDERSTORMS HAVE BEEN INCREASING IN COVERAGE ACROSS NRN CA AND WRN
   ORE WHERE WATER VAPOR IMAGERY SUGGESTS A SHORTWAVE TROUGH EXISTS IN
   SLY FLOW NEAR THE NRN CA AND NWRN NV STATE-LINE. LIFT ASSOCIATED
   WITH THIS FEATURE ALONG WITH MODERATE VERTICAL SHEAR AND COLD AIR
   ALOFT WITH 500 MB TEMPS OF -14C TO -16C SHOULD BE SUFFICIENT FOR A
   FEW ROTATING STORMS WITH LARGE HAIL POTENTIAL. IN
   ADDITION...LOW-LEVEL LAPSE RATES ARE ALSO STEEP WHICH COMBINED WITH 
   20-25 KT OF FLOW AROUND 1 KM MAY SUPPORT ISOLATED DAMAGING WIND
   GUSTS. THE SEVERE THREAT SHOULD GRADUALLY DECREASE IN THE 0100Z TO
   0230Z TIMEFRAME AS THE CONVECTION CURRENTLY ON THE WRN EDGE OF
   INSTABILITY MOVES INTO THE MORE STABLE AIRMASS NEAR THE COAST.
   
   ..BROYLES.. 06/03/2009
   
   
   ATTN...WFO...MFR...STO...EKA...
   
   LAT...LON   39272267 39352333 40132377 41932414 42722398 43172326
               43402182 43302113 42832089 42232160 40852207 39992177
               39512221 39272267