Storm Prediction Center
Day 1 and Day 2 Fire Weather Outlooks

Day 1 Fire Weather Forecast graphic

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   ZCZC SPCFWDDY1 ALL
   FNUS21 KWNS 260826
   
   DAY 1 FIRE WEATHER OUTLOOK  
   NWS STORM PREDICTION CENTER NORMAN OK
   0326 AM CDT MON OCT 26 2009
   
   VALID 261200Z - 271200Z
   
   ...NO CRITICAL AREAS...
   
   ...SYNOPSIS...
   AN UPPER-LEVEL TROUGH FROM THE N-CNTRL CONUS TO THE SRN ROCKIES WILL
   GRADUALLY PROGRESS EWD...WHILE A BROAD UPSTREAM TROUGH REACHES THE
   CANADIAN ROCKIES TO NRN CA/GREAT BASIN BY EARLY TUE. SURFACE
   ANTICYCLONE OVER THE CNTRL ROCKIES WILL WEAKEN AS IT SHIFTS SEWD
   ONTO THE SRN PLAINS.
   
   ...SRN CA COASTAL MTNS...
   RECENT MESONET OBSERVATIONS CONFIRM LOCALIZED CRITICAL CONDITIONS
   HAVE BEEN ONGOING WITH SUSTAINED OFFSHORE WINDS OF 15 TO 25
   MAINTAINING LITTLE RH RECOVERY /VALUES OF 8 TO 15 PERCENT/ IN
   FAVORED CANYONS/PASSES. WINDS WILL RAPIDLY DIMINISH AS THE SURFACE
   PRESSURE RELAXES SUBSTANTIALLY BETWEEN 12-18Z. NEVERTHELESS...A
   RATHER LONG DURATION OF LOW RH WILL CONTINUE THROUGH THE
   AFTERNOON/EVENING...BEFORE NEUTRAL TO WEAK ONSHORE FLOW DEVELOPS.
   
   ..GRAMS.. 10/26/2009
   
   ...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 260830
   
   DAY 2 FIRE WEATHER OUTLOOK  
   NWS STORM PREDICTION CENTER NORMAN OK
   0330 AM CDT MON OCT 26 2009
   
   VALID 271200Z - 281200Z
   
   ...CRITICAL FIRE WEATHER AREA FOR AZ...WRN NM...FOUR CORNERS...
   
   ...SYNOPSIS...
   MAJOR AMPLIFICATION OF A WRN CONUS UPPER-LEVEL TROUGH WILL OCCUR
   THROUGH THE DAY 2 PERIOD AS AN INTENSE NWLY MID-LEVEL JET /125 TO
   150 MPH AT 500 MB/ DIVES SWD ALONG THE CA COAST. MID-LEVEL W/SWLYS
   WILL STRENGTHEN DOWNSTREAM OF THE TROUGH AXIS AIDING IN THE
   DEEPENING OF A SURFACE CYCLONE THAT SHOULD BECOME CENTERED OVER THE
   FOUR CORNERS BY EARLY WED. ATTENDANT COLD FRONT SHOULD STRETCH FROM
   THE UT/AZ BORDER INTO SRN CA TUE AFTERNOON AND CONTINUE TO PUSH SEWD
   TOWARDS THE SRN ROCKIES/NRN BAJA CA.
   
   ...CRITICAL FIRE WEATHER AREA - AZ...WRN NM...FOUR CORNERS...
   
   PRIMARY CONDITIONS: VERY STRONG WINDS / LOW RH / ABNORMAL DRYNESS TO
   SEVERE DROUGHT
   
   LOW/MID-LEVEL W/SWLYS WILL INTENSIFY SUBSTANTIALLY TUE ACROSS THE
   SOUTHWEST DOWNSTREAM OF AN AMPLIFYING LARGE-SCALE TROUGH. AS THE
   MIXED BOUNDARY LAYER DEEPENS...SUSTAINED SURFACE WINDS OF 25 TO 35
   MPH WILL LIKELY BECOME WIDESPREAD BY MID/LATE AFTERNOON. AN
   ANTECEDENT DRY AIR MASS WILL BE MAINTAINED AHEAD OF A SHARP COLD
   FRONT WITH RH VALUES GENERALLY DROPPING TO BETWEEN 10 AND 15
   PERCENT. HIGH-END TO LOCALIZED EXTREME CONDITIONS APPEAR
   PROBABLE...ESPECIALLY INVOF MONGOLLON RIM IN AZ.
   
   ...PORTIONS OF THE SRN CA COASTAL RANGE...
   MARGINAL TO SHORT-DURATION CRITICAL CONDITIONS MAY DEVELOP INVOF
   HIGHER TERRAIN N/NW OF THE LOS ANGELES BASIN AROUND PEAK HEATING
   TUE. SUSTAINED N/NWLY SURFACE WINDS OF 20 TO 30 MPH SHOULD DEVELOP
   IN THE WAKE OF A COLD FRONT PASSAGE LATE MORNING/EARLY AFTERNOON ON
   TUE. DOWNSLOPE EFFECTS/DAYTIME HEATING WILL COMPENSATE FOR STRONG
   LOW-LEVEL CAA...AND SURFACE RH VALUES MAY BRIEFLY BECOME MARGINALLY
   LOW /AROUND 15 PERCENT/. CONTINUED CAA DURING THE EVENING/OVERNIGHT
   SHOULD AID IN MODEST RH RECOVERY DESPITE THE GUSTY NLY WINDS.
   
   ..GRAMS.. 10/26/2009
   
   ...PLEASE SEE WWW.SPC.NOAA.GOV/FIRE FOR GRAPHIC PRODUCT...
   
      

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