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 260835
   
   DAY 1 FIRE WEATHER OUTLOOK  
   NWS STORM PREDICTION CENTER NORMAN OK
   0235 AM CST THU NOV 26 2009
   
   VALID 261200Z - 271200Z
   
   ...CRITICAL FIRE WEATHER AREA FOR SRN CA W OF COASTAL RANGE...
   
   ...SYNOPSIS...
   A MODERATE PRESSURE GRADIENT WILL BE IN PLACE OVER THE SWRN U.S. DUE
   TO HIGH PRESSURE CENTERED OVER THE GREAT BASIN AND CNTRL
   ROCKIES...RESULTING IN STRONG OFFSHORE WINDS THIS MORNING OVER SRN
   CA WITH CONTINUED LOW RH. DRY WEATHER WILL PERSIST INTO THE PLAINS
   STATES WITH LIGHT WINDS AND WEAK HIGH PRESSURE. FARTHER E...A LARGE
   UPPER TROUGH WILL RESULT IN RELATIVELY COOL CONDITIONS E OF THE MS
   RIVER...WITH MODERATELY LOW RH FOR THE GULF COAST REGION AND THE FL
   PANHANDLE.
   
   ...CRITICAL FIRE WEATHER AREA - SRN CA W OF COASTAL RANGE...
   
   PRIMARY CONDITIONS: STRONG WINDS EARLY AND LOW RH
   
   STRONG WIND GUSTS WILL BE ONGOING THIS MORNING ESPECIALLY THROUGH
   PASSES AND CANYONS. RH WILL DROP FURTHER INTO THE SINGLE DIGITS
   LATER TODAY...BUT WINDS WILL BE ON THE WANE AS THE PRESSURE GRADIENT
   DECREASES. THIS MAY RESULT IN LOCALIZED CRITICAL FIRE CONDITIONS
   DURING THE EARLY PART OF THE DAY W OF THE COASTAL RANGE. RH RECOVERY
   OVERNIGHT INTO FRI WILL BE RATHER POOR...AND WITH MUCH LIGHTER
   WINDS.
   
   ...GULF COAST STATES INTO NRN FL...
   HIGH PRESSURE WILL BUILD IN FROM THE W BEHIND THE UPPER TROUGH. HIGH
   TEMPERATURES WILL BE IN THE 50S AND 60S...RESULTING IN MIN RH
   READINGS INTO THE 30 PERCENT RANGE AS FAR S AS NRN FL. IN
   ADDITION...NWLY WINDS OF 10-15 MPH WILL BE COMMON.
   
   ..JEWELL.. 11/26/2009
   
   ...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 260836
   
   DAY 2 FIRE WEATHER OUTLOOK  
   NWS STORM PREDICTION CENTER NORMAN OK
   0236 AM CST THU NOV 26 2009
   
   VALID 271200Z - 281200Z
   
   ...NO CRITICAL AREAS...
   
   ...SYNOPSIS...
   AN UPPER TROUGH AXIS WILL BE LOCATED ALONG THE PACIFIC COAST FRIDAY
   AFTERNOON...WITH LOW PRESSURE DEVELOPING OVER THE GREAT BASIN. THIS
   WILL IN TURN RESULT IN ONSHORE FLOW ACROSS SRN CA. A LEE PRESSURE
   TROUGH WILL DEEPEN OVER THE HIGH PLAINS DURING THE AFTERNOON...AND
   WILL RESULT IN GUSTY SWLY WINDS FOR THE SRN PLAINS.
   
   MARGINALLY CRITICAL FIRE WEATHER CONDITIONS ARE LIKELY OVER MUCH OF
   FL DUE TO LOW RH AND DRY FUELS AS HIGH PRESSURE BUILDS IN FROM THE
   NW.
   
   ...FL...
   A DRY AIR MASS WILL BE IN PLACE IN A POST FRONTAL REGIME. NWLY WINDS
   NEAR 10 MPH ARE LIKELY WITH HIGHER GUSTS...AND RH IS LIKELY TO DROP
   INTO THE 30 PERCENT RANGE OVER THE INTERIOR OF THE PENINSULA.
   SIGNIFICANT MODEL DIFFERENCES EXIST WITH RESPECT TO THE MAGNITUDE OF
   THE RH DROP...WITH THE NAM MODEL SHOWING 20 PERCENT MIN RH FOR SRN
   FL...AND THE GFS INDICATING VALUES IN THE 35-40 PERCENT RANGE. GIVEN
   EXPECTED WINDS OF ONLY 10-15 MPH...ONLY A MARGINAL FIRE THREAT IS
   EXPECTED. THE GREATEST RELATIVE THREAT WILL BE OVER INTERIOR S AND
   ERN FL WHERE SIGNIFICANT RAINFALL DEFICITS EXIST.
   
   ...W TX...SW OK...
   SW WINDS OF 15-20 MPH ARE LIKELY FRI AFTERNOON AS A LEE TROUGH
   DEEPENS. A VERY DRY AIR MASS WILL BE IN PLACE WITH MIN RH RANGING
   FROM 10-15 PERCENT FROM ERN NM INTO W TX...AND 15-20 PERCENT INTO
   WRN OK. THIS MAY RESULT IN MARGINAL FIRE WEATHER CONDITIONS FOR A
   FEW HOURS.
   
   ..JEWELL.. 11/26/2009
   
   ...PLEASE SEE WWW.SPC.NOAA.GOV/FIRE FOR GRAPHIC PRODUCT...
   
      

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