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 020725
   
   DAY 1 FIRE WEATHER OUTLOOK  
   NWS STORM PREDICTION CENTER NORMAN OK
   0225 AM CDT FRI OCT 02 2009
   
   VALID 021200Z - 031200Z
   
   ...NO CRITICAL AREAS...
   
   ...SYNOPSIS...
   PROGRESSIVE UPPER AIR PATTERN ACROSS THE CONUS WILL BE INFLUENCED
   MAINLY BY AN EXPANSIVE CYCLONE OVER THE MIDWEST MOVING INTO THE
   GREAT LAKES REGION WITH A COLD FRONT ARCING FROM THE GREAT LAKES TO
   THE WRN GULF COAST REGION.  BEHIND THIS SYSTEM...STRONG AND GUSTY
   NWLY WINDS WILL OCCUR OVER PORTIONS OF THE CNTRL PLAINS.  FURTHER
   W...ANOTHER IN A SERIES OF POTENT UPPER TROUGHS WILL MOVE INTO THE
   PACIFIC NW.
   
   ...PARTS OF S-CNTRL NEB/NRN KS...
   GUSTY NWLY WINDS WILL DEVELOP ON THE SWRN PERIPHERY OF MIDWEST/GRT
   LAKES CYCLONE BEGINNING LATE MORNING AND LASTING THROUGH THE LATE
   AFTERNOON HOURS.  AS MAX TEMPS REACH THE UPPER 50S TO MID
   60S...STEEP 0-2 KM LAPSE RATES WILL DEVELOP AND ENABLE DOWNWARD
   MOMENTUM TRANSPORT.  STRONG SUSTAINED WINDS 25-30 MPH ARE LIKELY
   WITH HIGHER GUSTS /35-45 MPH/.  ALTHOUGH CRITICALLY LOW RH IS
   FORECAST /GENERALLY AROUND 20 PERCENT--LOCALLY 15-20
   PERCENT/...SHORT DURATION/FLEETING NATURE OF LOWER RH IN COMBINATION
   WITH MARGINALIZED/GREEN FUELS WILL TEND TO MITIGATE AN OTHERWISE
   GREATER THREAT.
   
   ..SMITH.. 10/02/2009
   
   ...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 020841
   
   DAY 2 FIRE WEATHER OUTLOOK  
   NWS STORM PREDICTION CENTER NORMAN OK
   0341 AM CDT FRI OCT 02 2009
   
   VALID 031200Z - 041200Z
   
   ...CRITICAL FIRE WEATHER AREA FOR PORTIONS OF THE SRN GREAT BASIN /
   DESERT SW...
   
   ...SYNOPSIS...
   AN EQUATORWARD-MOVING PACIFIC NW UPPER JET AND ASSOCIATED SHORTWAVE
   TROUGH WILL INVOKE DOWNSTREAM STRENGTHENING OF FLOW FIELDS WITHIN
   THE SUB-TROPICAL BELT OF WSWLY/S OVER PARTS OF THE SWRN U.S.  THIS
   SPLIT FLOW PATTERN IMPINGING UPON THE AFOREMENTIONED REGION WILL BE
   SUPPORTIVE OF STRENGTHENING BOUNDARY LAYER FLOW DURING THE
   DAY--LEADING TO CRITICAL FIRE WEATHER CONDITIONS S OF A SEWD MOVING
   COLD FRONT OVER PORTIONS OF THE GREAT BASIN.  THE WRN U.S. SYSTEM
   AND A CUTOFF CYCLONE OVER THE UPPER GREAT LAKES WILL MAINTAIN A
   SEASONABLY STRONG ZONAL FLOW REGIME OVER THE SRN HALF OF THE LOWER
   48 AS UPPER TROUGHING AFFECTS THE NERN U.S.
   
   ...CRITICAL FIRE WEATHER AREA - PORTIONS OF THE SRN GREAT BASIN /
   DESERT SW...
   
   PRIMARY CONDITIONS: STRONG WINDS / LOW RH
   
   STRENGTHENING KINEMATIC FIELDS IN RESPONSE TO APPROACHING SHORTWAVE
   TROUGH FROM THE NW WILL LEAD TO STRONG SWLY SUSTAINED WINDS /20-25
   MPH/ WITH HIGHER GUSTS.  SREF MODEL GUIDANCE INDICATES THAT RH WILL
   LIKELY BE AOB 15 PERCENT S OF THE COLD FRONT AMIDST VERY STEEP
   SURFACE-H75 LAPSE RATES ACCORDING TO THE LATEST FORECAST SOUNDINGS. 
   WHILE SOME UNCERTAINTY REMAINS REGARDING THE SPATIAL EXTENT OF
   CRITICAL CONDITIONS OVER THE REGION...IT APPEARS THE GREATEST
   PROBABILITY OF STRONG WINDS/LOW RH WILL BE CENTERED INVOF THE SRN
   GREAT BASIN EXTENDING INTO THE MOJAVE DESERT.
   
   ..SMITH.. 10/02/2009
   
   ...PLEASE SEE WWW.SPC.NOAA.GOV/FIRE FOR GRAPHIC PRODUCT...
   
      

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