Storm Prediction Center
Day 1 and Day 2 Fire Weather Outlooks

Day 1 Fire Weather Forecast graphic

Click for Day 1 FireWX Areal Outline Product

   ZCZC SPCFWDDY1 ALL
   FNUS21 KWNS 250836
   
   DAY 1 FIRE WEATHER OUTLOOK  
   NWS STORM PREDICTION CENTER NORMAN OK
   0336 AM CDT SUN OCT 25 2009
   
   VALID 251200Z - 261200Z
   
   ...NO CRITICAL AREAS...
   
   ...SYNOPSIS...
   BROAD MID/UPPER-LEVEL TROUGH OVER MUCH OF THE CONUS WILL SHARPEN
   ACROSS THE CNTRL STATES AS IMPULSES MOVING OVER THE ROCKIES AMPLIFY
   THROUGH EARLY MON. UPSTREAM RIDGE AXIS OFF THE PACIFIC NW COAST WILL
   SHIFT INLAND BECOMING CENTERED FROM THE NRN ROCKIES TO CNTRL CA. AT
   THE SURFACE...AN ANTICYCLONE WILL QUICKLY TRACK SEWD FROM SRN
   BRITISH COLUMBIA ACROSS THE NRN INTERMOUNTAIN WEST TO THE CNTRL
   ROCKIES.
   
   ...SRN CA COASTAL AREA...
   MID-LEVEL FLOW SHOULD GRADUALLY WEAKEN AS A BROAD TROUGH SHARPENS
   ALONG AND E OF THE ROCKIES. HOWEVER...SURFACE HIGH PRESSURE WILL
   BUILD INTO THE NRN INTERMOUNTAIN WEST/CNTRL ROCKIES AND LIKELY
   INCREASE THE PRESSURE GRADIENT ACROSS SRN CA SUN EVENING INTO EARLY
   MON. GUIDANCE DIFFERS WITH THE TIGHTNESS OF THE GRADIENT...LEADING
   TO UNUSUALLY LARGE SPREAD AMONGST SREF MEMBERS AND BELOW-AVERAGE
   CONFIDENCE OVERALL WITH THE STRENGTH OF OFFSHORE FLOW. CONSENSUS
   WOULD SUGGEST PREDOMINATELY WEAK TO LOCALIZED MODERATE OFFSHORE FLOW
   WILL RESULT IN POOR OVERNIGHT RH RECOVERY AFTER VALUES DROP TO
   BETWEEN 8 AND 15 PERCENT THIS AFTERNOON. THIS SHOULD PRODUCE
   MARGINAL TO LOCALIZED CRITICAL CONDITIONS IN FAVORED
   CANYONS/PASSES...PRIMARILY FROM THE SAN GABRIEL MTNS SWD.
   
   ..GRAMS.. 10/25/2009
   
   ...PLEASE SEE WWW.SPC.NOAA.GOV/FIRE FOR GRAPHIC PRODUCT...
   
      
Day 2 Fire Weather Forecast graphic

Click for Day 2 FireWX Areal Outline Product

   ZCZC SPCFWDDY2 ALL
   FNUS22 KWNS 250906
   
   DAY 2 FIRE WEATHER OUTLOOK  
   NWS STORM PREDICTION CENTER NORMAN OK
   0406 AM CDT SUN OCT 25 2009
   
   VALID 261200Z - 271200Z
   
   ...NO CRITICAL AREAS...
   
   ...SYNOPSIS...
   UPPER-LEVEL TROUGH OVER THE CNTRL CONUS WILL GRADUALLY PROGRESS
   EWD...WHILE A BROAD UPSTREAM TROUGH DEVELOPS FROM THE CANADIAN
   ROCKIES TO THE PACIFIC NW BY EARLY TUE. SURFACE ANTICYCLONE OVER THE
   CNTRL ROCKIES WILL QUICKLY WEAKEN LATE MON MORNING.
   
   ...SRN CA COASTAL AREA...
   WEAK TO LOCALLY MODERATE OFFSHORE FLOW SHOULD BE ONGOING AT 12Z
   MON...BUT WILL DIMINISH AS THE SURFACE PRESSURE GRADIENT RELAXES
   DURING THE MID/LATE MORNING. POOR OVERNIGHT RH RECOVERY WILL LEAD TO
   A LONG DURATION OF LOW RH THROUGH THE AFTERNOON...BEFORE NEUTRAL TO
   WEAK ONSHORE FLOW DEVELOPS. MUCH IMPROVED RH RECOVERY IS EXPECTED
   MON NIGHT.
   
   ..GRAMS.. 10/25/2009
   
   ...PLEASE SEE WWW.SPC.NOAA.GOV/FIRE FOR GRAPHIC PRODUCT...
   
      

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