SPC AC 111712
   
   DAY 2 CONVECTIVE OUTLOOK  
   NWS STORM PREDICTION CENTER NORMAN OK
   1112 AM CST WED FEB 11 2009
   
   VALID 121200Z - 131200Z
   
   ...NO SVR TSTM AREAS FORECAST...
   
   ...SYNOPSIS...
   
   VERY ACTIVE PATTERN WILL PERSIST ACROSS U.S. OVER THE NEXT FEW DAYS
   AS A SERIES OF UPPER FEATURES DIG SEWD INTO THE GREAT BASIN/CNTRL
   ROCKIES BEFORE EJECTING EWD INTO THE OH VALLEY.  ONE PARTICULARLY
   STRONG UPPER LOW WILL DIG INTO NRN CA LATE IN THE PERIOD WHICH WILL
   ENHANCE THUNDER POTENTIAL WITHIN POST FRONTAL ENVIRONMENT ALONG THE
   SWRN ORE/NRN CA COAST...PRIMARILY AFTER 06Z.  THIS ACTIVITY WILL BE
   RATHER SHALLOW AND PRIMARILY JUST OFFSHORE OVER THE PACIFIC WHERE
   BUOYANCY WILL BE HIGHER.  DOWNSTREAM...COLD MID LEVEL TEMPERATURES
   IN ASSOCIATION WITH A STRONG SHORTWAVE TROUGH WILL STEEPEN LAPSE
   RATES FROM UT INTO CO.  AFTERNOON HEATING OVER THE HIGHER ELEVATIONS
   WILL CERTAINLY ENHANCE CONVECTIVE POTENTIAL...THOUGH LIGHTNING
   SHOULD REMAIN QUITE SPARSE.  FARTHER EAST...LLJ WILL INCREASE
   MARKEDLY OVER THE NWRN GULF OF MEXICO LATE IN THE PERIOD WELL AHEAD
   OF APPROACHING SPEED MAX OVER WEST TX.  GRADUAL MOISTENING ATOP
   RETREATING CONTINENTAL AIRMASS WILL LIKELY RESULT IN A FEW MAINLY
   ELEVATED THUNDERSTORMS DURING THE LATTER HALF OF THE PERIOD.
   
   ..DARROW.. 02/11/2009
   
   CLICK TO GET WUUS02 PTSDY2 PRODUCT

   NOTE: THE NEXT DAY 2 OUTLOOK IS SCHEDULED BY 0700Z