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 190803
   
   DAY 1 FIRE WEATHER OUTLOOK  
   NWS STORM PREDICTION CENTER NORMAN OK
   0203 AM CST THU NOV 19 2009
   
   VALID 191200Z - 201200Z
   
   ...NO CRITICAL AREAS...
   
   ...SYNOPSIS...
   AN UPPER TROUGH OVER THE INTERMOUNTAIN WEST WILL WEAKEN AND QUICKLY
   PROGRESS EWD INTO THE CENTRAL U.S. OVERNIGHT. MEANWHILE...08Z WATER
   VAPOR IMAGERY SHOWS AN UPPER DISTURBANCE NEAR THE CA/AZ/MEXICO
   BORDER THAT WILL PROGRESS ESEWD INTO N CENTRAL MEXICO. AS THIS
   PASSES...OFFSHORE FLOW WILL BRIEFLY RETURN TO SRN CA TODAY.
   HOWEVER...A STRONGER UPPER TROUGH WILL BEGIN TO IMPACT THE WEST
   COAST OVERNIGHT...AND THE ASSOCIATED WIND SHIFT WILL QUICKLY END
   OFFSHORE FLOW FOR SRN CA.
   
   MEANWHILE FARTHER E...AN UPPER LOW IN THE UPPER MS VALLEY WILL
   FINALLY BEGIN TO EJECT ENEWD THROUGH THE GREAT LAKES
   REGION...DRIVING A COLD FRONT AT THE SURFACE EWD/OFFSHORE OF THE
   ATLANTIC LATE IN THE PERIOD. COOL/MOIST CONDITIONS WILL LIMIT THE
   FIRE THREAT ACROSS MUCH OF THE COUNTRY.
   
   ...SRN CA...
   08Z SURFACE ANALYSIS PLACES A WEAKENING COLD FRONT ACROSS SRN
   CA...WHICH WILL SLOWLY MOVE SWD AS HIGH PRESSURE ROUGHLY CENTERED
   OVER IDAHO SHIFTS TO THE S AND E IN ADVANCE OF AN APPROACHING UPPER
   TROUGH. NLY WINDS WILL SHIFT TO NELY TODAY...LEADING TO WARM AND DRY
   CONDITIONS WITH HUMIDITIES FALLING INTO THE TEENS AND SINGLE DIGITS.
   HOWEVER...A WEAKENING SURFACE PRESSURE GRADIENT AND STRONGER FLOW
   ALOFT QUICKLY SHIFTING E OF THE AREA WILL LIMIT STRONGER WINDS FROM
   ALIGNING WITH CRITICALLY LOW RELATIVE HUMIDITIES...WITH THE
   EXCEPTION OF ISOLATED STRONGER GUSTS IN FAVORABLY ORIENTED CANYONS
   AND PASSES. OFFSHORE FLOW WILL QUICKLY END BY EVENING AS UPPER WINDS
   SHIFT TO WLY IN ADVANCE OF AN UPPER TROUGH.
   
   ..HURLBUT.. 11/19/2009
   
   ...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 190844
   
   DAY 2 FIRE WEATHER OUTLOOK  
   NWS STORM PREDICTION CENTER NORMAN OK
   0244 AM CST THU NOV 19 2009
   
   VALID 201200Z - 211200Z
   
   ...NO CRITICAL AREAS...
   
   ...SYNOPSIS...
   A SIGNIFICANT PACIFIC UPPER TROUGH WILL PROGRESS EWD TO THE
   INTERMOUNTAIN WEST THROUGH THE PERIOD. THIS WILL DRIVE A COLD FRONT
   EWD/ESEWD...BECOMING ORIENTED ROUGHLY SWWD THROUGH CNTRL MT TO THE
   ID/WY BORDERS...SWD THROUGH WRN UT...THEN WWD THROUGH SRN NV/CA BY
   THE END OF THE PERIOD. AHEAD OF THE FRONT DURING THE
   AFTERNOON...GUSTY WINDS MAY ALIGN WITH MARGINAL RELATIVE HUMIDITIES
   ACROSS PORTIONS OF NV/UT...THOUGH COOL TEMPERATURES WILL PRECLUDE A
   CRITICAL OUTLOOK. WETTING RAINS MAY OCCUR AS FAR SOUTH AS SRN CA IN
   ASSOCIATION WITH THE SYSTEM. ELSEWHERE...CRITICAL CONDITIONS ARE NOT
   ANTICIPATED.
   
   ..HURLBUT.. 11/19/2009
   
   ...PLEASE SEE WWW.SPC.NOAA.GOV/FIRE FOR GRAPHIC PRODUCT...
   
      

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