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 050758
   
   DAY 1 FIRE WEATHER OUTLOOK  
   NWS STORM PREDICTION CENTER NORMAN OK
   0258 AM CDT FRI SEP 05 2008
   
   VALID 051200Z - 061200Z
   
   ...CRITICAL FIRE WEATHER AREA FOR PARTS OF NWRN CA / SWRN OREGON...
   
   ...SYNOPSIS...
   A BROAD UPPER LONG-WAVE TROUGH IS CENTERED OVER THE N-CENTRAL STATES
   WITH AN UPPER RIDGE INFLUENCING THE E AND W COASTS.  A N-S PRESSURE
   GRADIENT ALONG PARTS OF THE PAC COASTLINE WILL EXIST AS A THERMAL
   TROUGH EXTENDS NWD TO PARTS OF NRN CA/SWRN OREGON.  CRITICAL
   CONDITIONS ARE ANTICIPATED TO OCCUR OVER PARTS OF NWRN CA INTO SWRN
   OREGON EARLY IN THE PERIOD BEFORE WINDS SLACKEN SOMEWHAT AND FIRE
   WEATHER CONDITIONS BECOME MORE TEMPERED.
   
   ...CRITICAL FIRE WEATHER AREA - PARTS OF NWRN CA / SWRN OREGON...
   
   PRIMARY CONDITIONS: GUSTY WINDS / LOW RH
   
   A CONTINUATION OF CRITICAL FIRE WEATHER CONDITIONS WILL LIKELY BE
   ONGOING THIS MORNING AS SUSTAINED NNELY-ENELY WINDS NEAR 20 MPH
   /GUSTS 25-35 MPH/ AFFECT MAINLY HIGHER TERRAIN.  FORECAST SOUNDINGS
   SUGGEST RH MAY AGAIN BE NEAR 20 PERCENT FOR SEVERAL HOURS.  RH WILL
   PROBABLY REMAIN LOW DURING THE DAYTIME...BUT WINDS WILL LIKELY
   WEAKEN BELOW CRITICAL LEVELS THUS ENDING A CRITICAL FIRE WEATHER
   THREAT.  A SIMILAR BUT LESS ROBUST SETUP APPEARS POSSIBLE FRIDAY
   NIGHT INTO SATURDAY MORNING.  THE LATEST DETERMINISTIC CONSENSUS
   INDICATES A WEAKER PRESSURE GRADIENT DURING THE OVERNIGHT HOURS
   FRIDAY NIGHT/SATURDAY MORNING COMPARED TO FRIDAY MORNING.  HOWEVER
   FORECAST SOUNDINGS SHOW ANALOGOUS LOW LEVEL FLOW.  THE POTENTIAL FOR
   GUSTY WINDS /ALBEIT SLIGHTLY WEAKER/ MAY SERVE TO ENHANCE AN
   OTHERWISE MORE LIMITED FIRE WEATHER THREAT COMPARED TO THE EARLY
   PART OF THE PERIOD.
   
   ..SMITH.. 09/05/2008
   
   ...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 050905
   
   DAY 2 FIRE WEATHER OUTLOOK  
   NWS STORM PREDICTION CENTER NORMAN OK
   0405 AM CDT FRI SEP 05 2008
   
   VALID 061200Z - 071200Z
   
   ...NO CRITICAL AREAS...
   
   ...SYNOPSIS...
   A BROAD UPPER LONG-WAVE TROUGH CENTERED OVER THE N-CENTRAL STATES
   AT THE START OF THE PERIOD WILL BEGIN TO SLOWLY SHIFT EWD AS A
   SERIES OF UPPER DISTURBANCES TRAVERSE ITS PERIPHERY.  AN UPPER
   RIDGE/S INFLUENCE WILL WANE OVER PARTS OF THE PACIFIC COAST DURING
   THE PERIOD AS A WEAK MID-LEVEL PERTURBATION MOVES TOWARDS THE
   AFOREMENTIONED REGION BY THE END OF THE PERIOD.  THERE IS SOME
   POTENTIAL FOR A FIRE WEATHER THREAT AFFECTING PARTS OF NWRN CA AND
   SWRN OREGON AS GUSTY WINDS RELATED TO A N-S PRESSURE GRADIENT RESIDE
   OVER PARTS OF THE PACIFIC COAST EARLY IN THE PERIOD.  BORDERLINE
   CRITICAL CONDITIONS MAY BE MET AT TIMES BUT ARE NOT ANTICIPATED TO
   BE LONG ENOUGH IN DURATION FOR AN OUTLOOK.
   
   ...PARTS OF SWRN OREGON / NWRN CA...
   GUSTY WINDS MAY OCCUR OVER HIGHER TERRAIN DURING THE MORNING HOURS
   SATURDAY CONCURRENTLY WITH SUFFICIENTLY LOW RH /NEAR 20 PERCENT/. 
   FORECAST SOUNDINGS SHOW SOME POTENTIAL FOR GUSTY NNE-ENELY OFFSHORE
   FLOW UP TO 25-30 MPH--SUPPORTING SOME CRITICAL FIRE WEATHER
   POTENTIAL.  DESPITE THIS...SUSTAINED WINDS ARE FORECAST TO GENERALLY
   REMAIN UNDER 20MPH.  AN UPGRADE TO A CRITICAL DESIGNATION MAY BECOME
   NECESSARY IF WINDS ARE FORECAST TO BE SLIGHTLY STRONGER/LONGER
   DURATION THAN ANTICIPATED SATURDAY MORNING.  HOWEVER A RELAXED FIRE
   WEATHER THREAT SHOULD DEVELOP DURING THE LATE MORNING INTO THE
   AFTERNOON AS GRADIENT WINDS WEAKEN.
   
   ..SMITH.. 09/05/2008
   
   ...PLEASE SEE WWW.SPC.NOAA.GOV/FIRE FOR GRAPHIC PRODUCT...
   
      

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