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 030854
   
   DAY 1 FIRE WEATHER OUTLOOK  
   NWS STORM PREDICTION CENTER NORMAN OK
   0254 AM CST MON DEC 03 2007
   
   VALID 031200Z - 041200Z
   
   ...CRITICAL FIRE WEATHER AREA FOR CNTRL/ERN SC AND PORTIONS OF
   E-CNTRL/SERN GA...
   
   ...SYNOPSIS...
   AN UPPER-LEVEL TROUGH OVER THE GREAT LAKES/OH RIVER VALLEY WILL
   CONTINUE TO AMPLIFY EVOLVING INTO A CLOSED LOW CENTERED OVER NRN NEW
   ENGLAND BY EARLY TUE. A SHARP COLD FRONT WILL QUICKLY SWEEP THROUGH
   MID-ATLANTIC/SOUTHEAST THIS MORNING. STRONG NWLY WINDS WILL OCCUR IN
   ITS WAKE...BETWEEN EXPANSIVE SURFACE HIGH PRESSURE IN THE SRN
   PLAINS. IN THE SOUTHWEST...AN UPPER HIGH WILL BECOME ESTABLISHED
   OVER SRN CA. A SURFACE TROUGH WILL DEVELOP OFF THE BAJA/SRN CA COAST
   WITH HIGH PRESSURE REMAINING ANCHORED OVER THE FOUR CORNERS.
   
   ...CRITICAL FIRE WEATHER AREA - CNTRL/ERN SC AND PORTIONS OF
   E-CNTRL/SERN GA...
   
   PRIMARY CONDITIONS: STRONG WINDS / LOW RH / LONG-TERM DROUGHT
   
   EARLY MORNING SURFACE OBSERVATIONS INDICATE HIGH RH ACROSS THE
   REGION AS DEW POINTS HAVE HELD IN THE LOWER TO MIDDLE 60S. IN
   ADDITION...A COLD FRONT WILL AID IN PRODUCING SCATTERED LIGHT
   RAINFALL THROUGH 15Z. DESPITE THESE FACTORS...SIGNIFICANT DRYING
   WILL OCCUR AFTER FRONTAL PASSAGE AS SUBSIDENCE/DOWNSLOPE EFFECTS
   COMMENCE. ALTHOUGH COOLING WILL ALSO ENSUE IN THE LOW-LEVELS...THE
   STRONGEST COLD AIR ADVECTION WILL REMAIN FARTHER NORTH. AS A
   RESULT...RH VALUES WILL BECOME LOW /FROM 20 TO 30 PERCENT/ BY PEAK
   HEATING. SUSTAINED SURFACE WINDS OF 20 TO 25 MPH APPEAR LIKELY
   SUPPORTING A MODERATE DURATION OF CRITICAL CONDITIONS GIVEN
   PERVASIVE LONG-TERM DROUGHT.
   
   ...SRN CA COASTAL RANGE...
   AS A SURFACE TROUGH DEVELOPS OFFSHORE LATER TODAY...THE SURFACE
   PRESSURE GRADIENT WILL TIGHTEN EARLY TUE. THIS WILL LEAD TO MODEST
   OFFSHORE FLOW DESPITE LITTLE MID/UPPER-LEVEL SUPPORT FOR HIGH WINDS.
   LOCALLY GUSTY N/NELY WINDS TO AROUND 30 MPH SHOULD DEVELOP ACROSS
   FAVORED CANYONS/PASSES TOWARDS 12Z/TUE. THIS WILL STRENGTHEN DRYING
   AFTER RECENT RAINFALL AND PRODUCE POOR OVERNIGHT RH RECOVERY.
   
   ..GRAMS.. 12/03/2007
   
   ...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 030958
   
   DAY 2 FIRE WEATHER OUTLOOK  
   NWS STORM PREDICTION CENTER NORMAN OK
   0358 AM CST MON DEC 03 2007
   
   VALID 041200Z - 051200Z
   
   ...NO CRITICAL AREAS...
   
   ...SYNOPSIS...
   AS A CLOSED UPPER-LEVEL LOW OVER NRN NEW ENGLAND LIFTS NEWD ACROSS
   THE CANADIAN MARITIMES...A SECONDARY IMPULSE WILL DIG SWD FROM THE
   CANADIAN PRAIRIES INTO THE UPPER MIDWEST. THIS WILL EFFECTIVELY
   MAINTAIN A BROAD LARGE-SCALE TROUGH ACROSS MUCH OF THE CNTRL/ERN
   CONUS INTO EARLY WED. SURFACE RIDGING WILL BECOME SUPPRESSED ALONG
   THE GULF COAST AND FOUR CORNERS...WITH MUCH OF THE SRN CONUS
   EXPERIENCING LOW RH AND MODEST WINDS.
   
   ...SOUTHEAST...
   ALTHOUGH TEMPERATURES WILL BE MILD TUE AFTERNOON /GENERALLY IN THE
   UPPER 50S TO MIDDLE 60S/...RH WILL BECOME QUITE LOW GIVEN UPSTREAM
   DEW POINTS IN THE TEENS/20S OVER THE MID/LOWER MS AND LOWER OH RIVER
   VALLEYS ATTM. WIDESPREAD MIN RH VALUES OF 15 TO 25 PERCENT ARE
   EXPECTED FROM NRN FL NWD TO THE LOWER MID-ATLANTIC/TN RIVER VALLEY.
   THIS WILL ENHANCE THE FIRE WEATHER THREAT GIVEN PREVALENT LONG-TERM
   DROUGHT. HOWEVER...SUSTAINED SURFACE WINDS ARE EXPECTED TO REMAIN
   MODERATE AT BEST /AROUND 10 TO 15 MPH/.
   
   ...SRN CA COASTAL RANGE...
   LOCALLY GUSTY OFFSHORE WINDS WILL BE ONGOING TUE MORNING ALONG
   FAVORED CANYONS/PASSES SUPPORTING POOR OVERNIGHT RH RECOVERY. MODEL
   GUIDANCE INDICATES THE SURFACE PRESSURE GRADIENT WILL SLACKEN BY
   LATE MORNING AS HIGH PRESSURE WEAKENS OVER THE FOUR CORNERS. AS RH
   VALUES DROP TO AROUND 10 TO 15 PERCENT DURING THE
   AFTERNOON...SUSTAINED SURFACE WINDS SHOULD REMAIN BELOW 20 MPH
   MITIGATING A CRITICAL THREAT.
   
   ..GRAMS.. 12/03/2007
   
   ...PLEASE SEE WWW.SPC.NOAA.GOV/FIRE FOR GRAPHIC PRODUCT...
   
      

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