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 290856
   
   DAY 1 FIRE WEATHER OUTLOOK  
   NWS STORM PREDICTION CENTER NORMAN OK
   0356 AM CDT SAT SEP 29 2007
   
   VALID 291200Z - 301200Z
   
   ...CRITICAL FIRE WEATHER AREA FOR MUCH OF AL/GA AND SC PIEDMONT/FL
   PANHANDLE...
   
   ...SYNOPSIS...
   A POTENT UPPER TROUGH WILL QUICKLY SHIFT EASTWARD TODAY OVER THE
   GREAT BASIN/ROCKIES...REACHING THE CENTRAL HIGH PLAINS SUNDAY
   MORNING. ASSOCIATED STRONG COLD FRONT WILL RESULT IN GUSTY
   WINDS/COOLER TEMPERATURES IN ITS WAKE...WITH WIDESPREAD SHOWERS AND
   THUNDERSTORMS ACROSS A LARGE PART OF THE ROCKIES AND
   NORTHERN/CENTRAL PLAINS. IN THE EAST...UPPER RIDGE/SURFACE HIGH
   PRESSURE WILL CONTRIBUTE TO MILD/DRY CONDITIONS ACROSS THE SOUTHEAST
   STATES.
   
   ...CRITICAL FIRE WEATHER AREA - MUCH OF AL/GA AND SC PIEDMONT/FL
   PANHANDLE...
   
   PRIMARY CONDITIONS: VERY LOW AFTERNOON RH/LONG TERM DROUGHT
   
   A SUNNY/MILD AND VERY DRY AFTERNOON IS EXPECTED OWING TO THE
   INFLUENCE OF THE UPPER RIDGE AND SURFACE HIGH PRESSURE. RH VALUES
   ARE LIKELY TO DROP INTO THE 25-30 PERCENT RANGE FOR SEVERAL HOURS
   DURATION THIS AFTERNOON...RESULTING IN A HEIGHTENED FIRE DANGER IN
   THE PRESENCE OF EXTREME-EXCEPTIONAL LONG TERM DROUGHT. A MODEST
   PRESSURE GRADIENT ON THE PERIPHERY OF THE SURFACE HIGH WILL SUPPORT
   SUSTAINED EAST/NORTHEAST WINDS AROUND 10 MPH IN MOST LOCALES THIS
   AFTERNOON.
   
   ...NORTHEAST AZ/SOUTHEAST UT...
   STRONG SOUTHWEST WINDS WILL CONTINUE MUCH OF THE DAY AHEAD OF THE
   COLD FRONT CROSSING UT/NORTHERN AZ...WITH A SUBSEQUENT WIND SHIFT TO
   WEST-NORTHWESTERLY EXPECTED BY LATE AFTERNOON/EARLY EVENING IN
   ASSOCIATION WITH THE FRONT. SUSTAINED WIND SPEEDS OF 20-30 MPH /WITH
   HIGHER GUSTS/ ARE LIKELY INTO EARLY EVENING. WHILE STRONG/GUSTY
   WINDS AND THE WIND SHIFT WILL RESULT IN AN ELEVATED FIRE DANGER...RH
   LEVELS WILL TEND TO BE MARGINAL AT 15-20 PERCENT.
   
   ...EASTERN WY/EASTERN CO INTO WESTERN SD/NEB PANHANDLE...
   BETWEEN THE UPSTREAM COLD FRONT AND HIGH PLAINS LEE
   TROUGH...STRONG/GUSTY SOUTHWEST WINDS AND MARGINALLY LOW RH VALUES
   ARE EXPECTED THIS AFTERNOON ACROSS THE NORTH CENTRAL HIGH PLAINS.
   ALTHOUGH INCREASING CLOUD COVER WILL BE A LIMITING
   FACTOR...SUFFICIENT BOUNDARY LAYER MIXING WILL SUPPORT SUSTAINED
   WIND SPEEDS OF 20-30 MPH THROUGH THE AFTERNOON...WITH GUSTS TO 40
   MPH POSSIBLE...PARTICULARLY ACROSS EASTERN WY WHERE THE DOWNSLOPE
   COMPONENT WILL BE GREATEST.
   
   ..GUYER.. 09/29/2007
   
   ...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 290942
   
   DAY 2 FIRE WEATHER OUTLOOK  
   NWS STORM PREDICTION CENTER NORMAN OK
   0442 AM CDT SAT SEP 29 2007
   
   VALID 301200Z - 011200Z
   
   ...NO CRITICAL AREAS...
   
   ...SYNOPSIS...
   LEAD SHORTWAVE TROUGH WILL TRANSITION NORTHEASTWARD FROM THE CENTRAL
   HIGH PLAINS TO THE WESTERN GREAT LAKES ON SUNDAY...WHILE A
   SECONDARY/MORE SUBSTANTIAL UPPER TROUGH DIGS SOUTHEASTWARD ALONG THE
   WEST COAST. EVEN WITH THE COLD FRONTAL PASSAGE ON DAY
   1...TEMPERATURES WILL QUICKLY MODERATE ACROSS THE GREAT BASIN AND
   ADJACENT WESTERN STATES AHEAD OF THE NEXT UPPER TROUGH. THIS
   SECONDARY SYSTEM WILL BRING GUSTY WINDS TO PORTIONS OF ORE/ID/NV AND
   NORTHERN CA ON SUNDAY...HOWEVER COOL TEMPERATURES AND/OR MOIST FUELS
   WILL PRECLUDE CRITICAL FIRE WEATHER CONDITIONS.
   
   FARTHER EAST...BROAD SYNOPTIC COLD FRONT WILL BE THE PRIMARY FOCUS
   FOR SHOWERS AND THUNDERSTORMS FROM THE UPPER MIDWEST INTO THE
   CENTRAL PLAINS. DRY CONDITIONS WILL CONTINUE ACROSS THE SOUTHEAST
   STATES...OWING TO THE PERSISTENCE OF THE UPPER RIDGE/SURFACE HIGH
   PRESSURE.
   
   ...SOUTHEAST STATES...
   UPPER RIDGE WILL REMAIN OVER THE REGION ON SUNDAY...WITH SURFACE
   HIGH PRESSURE EXTENDING FROM THE NORTHEAST STATES INTO AREAS
   ALONG/EAST OF THE APPALACHIANS. THIS SCENARIO WILL MAINTAIN A DRY
   AIRMASS ACROSS THE REGION...WITH RELATIVELY LOW RH AFTERNOON VALUES
   AROUND 30 PERCENT. EXPECTATIONS OF SLIGHTLY COOLER
   TEMPERATURES/HIGHER RH VALUES AND/OR SOMEWHAT LIGHTER WINDS SUGGEST
   THAT THE OVERALL FIRE DANGER WILL BE MORE MARGINAL AS COMPARED TO
   DAY 1/SATURDAY.
   
   ..GUYER.. 09/29/2007
   
   ...PLEASE SEE WWW.SPC.NOAA.GOV/FIRE FOR GRAPHIC PRODUCT...
   
      

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