Storm Prediction Center
Day 1 and Day 2 Fire Weather Outlooks

Day 1 Fire Weather Forecast graphic

   ZCZC SPCFWDDY1 ALL
   FNUS21 KWNS 250801
   
   DAY 1 FIRE WEATHER OUTLOOK  
   NWS STORM PREDICTION CENTER NORMAN OK
   0301 AM CDT MON AUG 25 2003
   
   VALID 251200Z - 261200Z
   
   ...NO CRITICAL AREAS...
   
   ...SYNOPSIS...
   FAST ZONAL FLOW WILL CONTINUE OVER THE PACIFIC NW AND NRN TIER OF
   STATES.  IT WILL CONTINUE TO GET DRIER AND MORE UNSTABLE OVER THE
   NWRN U.S. AS THERMAL RIDGE BUILDS INTO WA AND OREGON...AND DOWNSLOPE
   FLOW CONTINUES OVER MT.  MOISTURE WILL BE ON THE INCREASE OVER THE
   SRN SIERRA WITH THUNDERSTORMS LIKELY THERE...AS MONSOONAL MOISTURE
   MAKES A RETURN NWD.
   
   ...CENTRAL AND ERN OREGON AND WASHINGTON...
   IT WILL BE WARM AND DRY TODAY FROM THE WRN SLOPES OF THE CASCADES
   INTO ERN WA AND OREGON...WHERE THERMAL RIDGE WILL BE LOCATED. 
   TEMPERATURES WARMING INTO THE 90S...LOW RH OF 15-25 PERCENT AND
   DEEPENING MIXED LAYERS WILL THUS RESULT IN INCREASED FIRE WEATHER
   THREAT.  SURFACE WINDS WILL BE GENERALLY UNDER 15 MPH THROUGH
   MIDDAY...BUT A WEAK COLD FRONT WILL MOVE THROUGH THE CASCADES REGION
   BY EARLY AFTERNOON...AND WINDS WILL SHIFT TO A WLY DIRECTION AT
   10-15 MPH AND GUSTY.  GIVEN DEEP MIXING HEIGHTS...HIGHER WIND GUSTS
   WILL BE LIKELY IN THE MOUNTAINS AND RIDGE TOPS...MOST LIKELY FROM
   15-25 MPH.  RH RECOVERIES WILL BE FAIR BY TUESDAY MORNING IN POST
   FRONTAL AIR MASS.
   
   ...SRN MT AND YELLOWSTONE VICINITY...
   IT WILL BE WARM AND DRY TODAY AS A DRY AND UNSTABLE AIR MASS REMAINS
   IN PLACE.  MIN RH VALUES NEAR 20 PERCENT ARE EXPECTED DURING THE
   AFTERNOON...WITH DEEP MIXING LAYERS.  HAINES INDICES WILL BE
   MODERATE IN THIS AREA. WIND SPEEDS OF 10-15 MPH ARE EXPECTED WITH
   AFTERNOON MIXING...AND GUSTS WILL NOT EXCEED THOSE VALUES GIVEN
   WEAKER FLOW ALOFT COMPARED TO YESTERDAY.  IN ADDITION...SCATTERED
   LIGHTNING STRIKES OCCURRED YESTERDAY AND LAST NIGHT IN AREAS WITH
   HIGH LIGHTNING IGNITION EFFICIENCIES.
   
   ...ERN MT INTO WRN ND...
   SURFACE PRESSURE GRADIENT BETWEEN LOW PRESSURE OVER THE ERN DAKOTAS
   AND CENTRAL MT WILL CAUSE NWLY WINDS AROUND 15 MPH WITH HIGHER
   GUSTS. RH LEVELS WILL AVERAGE BETWEEN 15-20 PERCENT.  LIGHTNING
   STRIKES HAVE OCCURRED IN THESE AREAS RECENTLY...WHERE FUELS ARE VERY
   DRY.
   
   ...NWRN MT...
   LOCALLY GUSTY WINDS OF 15-25 MPH WILL AGAIN BE POSSIBLE TODAY IN
   DOWNSLOPE REGIONS...BUT SUSTAINED WIND SPEEDS ON AVERAGE WILL BE
   QUITE A BIT LOWER.  RH WILL REMAIN LOW WITH VALUES LARGELY IN THE
   20% RANGE.
   
   ..JEWELL.. 08/25/2003
   
   ...PLEASE SEE WWW.SPC.NOAA.GOV/FIRE FOR GRAPHIC PRODUCT...
   
      
Day 2 Fire Weather Forecast graphic

   ZCZC SPCFWDDY2 ALL
   FNUS22 KWNS 250927
   
   DAY 2 FIRE WEATHER OUTLOOK  
   NWS STORM PREDICTION CENTER NORMAN OK
   0427 AM CDT MON AUG 25 2003
   
   VALID 261200Z - 271200Z
   
   ...CRITICAL FIRE WEATHER AREA FOR MUCH OF CENTRAL AND WRN
   MT...CENTRAL ID...
   
   ...SYNOPSIS...
   AN APPROACHING SHORTWAVE TROUGH WILL CAUSE THERMAL RIDGE TO MOVE EWD
   INTO WRN MT AND CENTRAL ID BY AFTERNOON...WITH A SURFACE WIND SHIFT
   BEHIND A COLD FRONT.  ENOUGH MOISTURE MIGHT BE PRESENT FOR ISOLATED
   DRY LIGHTNING AS WELL. WARM AND DRY CONDITIONS WILL CONTINUE OVER
   ERN WA AND OREGON AS WELL.  MONSOONAL MOISTURE WILL CONTINUE
   SPREADING NWD INTO THE CENTRAL GREAT BASIN WITH THUNDERSTORMS WITH
   WETTING RAINS THERE.
   
   ...CRITICAL FIRE WEATHER AREA 1 - CENTRAL AND WRN MT...CENTRAL ID...
   
   PRIMARY CONDITIONS: WARM AND DRY CONDITIONS FOLLOWED BY COLD FRONT
   WITH SHIFTING WINDS
   
   A COLD FRONT WILL MOVE THROUGH THE AREA TUESDAY...BRINGING A WIND
   SHIFT AND THE POSSIBILITY OF ISOLATED DRY STORMS.  THE MAIN COLD
   FRONT WILL EXTEND FROM NRN ID/NWRN MT AT MIDDAY...WHERE WINDS WILL
   SHIFT FROM SLY AT 10-15 MPH TO WLY AND INCREASE TO 15-20 MPH WITH
   HIGHER GUSTS.  THIS FRONT WILL CONTINUE EWD INTO CENTRAL MT BY 12Z
   WED MORNING WITH SIMILAR RESULTS.  CONDITIONS AHEAD OF THE COLD
   FRONT WILL BE WARM AND DRY...WITH STEEP LAPSE RATES AND LOW RH
   VALUES IN THE 15-25 PERCENT RANGE.  HAINES INDICES AHEAD OF THE
   FRONT WILL LARGELY BE IN THE MODERATE CATEGORY.  IN
   ADDITION...ISOLATED DRY THUNDERSTORMS CANNOT BE RULED
   OUT...ESSENTIALLY ANYWHERE WITHIN THE CRITICAL AREA.
   
   ..JEWELL.. 08/25/2003
   
   ...PLEASE SEE WWW.SPC.NOAA.GOV/FIRE FOR GRAPHIC PRODUCT...
   
      

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