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 070820
   
   DAY 1 FIRE WEATHER OUTLOOK  
   NWS STORM PREDICTION CENTER NORMAN OK
   0320 AM CDT FRI SEP 07 2007
   
   VALID 071200Z - 081200Z
   
   ...NO CRITICAL AREAS...
   
   ...SYNOPSIS...
   A MID/UPPER-LEVEL SHORT WAVE TROUGH OVER THE UPPER MIDWEST WILL LIFT
   RAPIDLY NEWD INTO SERN CANADA...WHILE AN UPSTREAM SHORT WAVE OVER
   BRITISH COLUMBIA WILL AMPLIFY SEWD ACROSS THE NRN ROCKIES. THESE
   FEATURES WILL EFFECTIVELY MAINTAIN A BROAD UPPER-LEVEL TROUGH ACROSS
   MUCH OF THE NRN CONUS...WITH AN EXPANSIVE RIDGE REMAINING ANCHORED
   OVER THE NERN PACIFIC.
   
   ...ERN SLOPES OF THE CASCADES/COLUMBIA BASIN OF WA...
   NWLY MID-LEVEL FLOW WILL INCREASE TO AOA 60 MPH AT 500 MB IN
   RESPONSE TO A SHORT WAVE TROUGH DIGGING SEWD TOWARDS THE NRN
   ROCKIES. EVEN WITH DOWNSLOPE EFFECTS RESULTING IN A STEEP LOW-LEVEL
   LAPSE RATE ENVIRONMENT...MODEL FORECAST SOUNDINGS CONTINUE TO DEPICT
   WEAK MID-LEVEL LAPSE RATES WHICH WILL LIKELY MITIGATE THE STRONGER
   FLOW ALOFT FROM BEING FULLY MIXED THROUGH THE BOUNDARY LAYER. AS A
   RESULT...SUSTAINED SURFACE WINDS SHOULD GENERALLY AVERAGE AROUND 15
   MPH AT PEAK HEATING...WITH TERRAIN EFFECTS AUGMENTING SPEEDS
   LOCALLY. WITH TEMPERATURES REACHING THE 70S TO LOWER 80S...RH VALUES
   WILL LIKELY BECOME MARGINALLY LOW /AROUND 20 PERCENT/.
   
   ..GRAMS.. 09/07/2007
   
   ...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 070939
   
   DAY 2 FIRE WEATHER OUTLOOK  
   NWS STORM PREDICTION CENTER NORMAN OK
   0440 AM CDT FRI SEP 07 2007
   
   VALID 081200Z - 091200Z
   
   ...NO CRITICAL AREAS...
   
   ...SYNOPSIS...
   THE UPPER-LEVEL PATTERN WILL REMAIN PROGRESSIVE ACROSS THE NRN
   CONUS. A SHORT WAVE TROUGH OVER THE NRN ROCKIES WILL EJECT EWD
   TOWARDS THE UPPER GREAT LAKES...WHILE AN UPSTREAM WAVE OVER SWRN
   CANADA DIGS SWD ACROSS THE PACIFIC NW/NRN ROCKIES. IN ADVANCE OF THE
   LATTER WAVE...A FRONTAL BOUNDARY WILL BECOME QUASI-STATIONARY OVER
   THE NRN GREAT BASIN. THE SURFACE PRESSURE GRADIENT WILL TIGHTEN TO
   THE N OF THIS BOUNDARY OWING TO HIGH PRESSURE BUILDING FROM THE NERN
   PACIFIC TOWARDS BRITISH COLUMBIA. AN INCREASINGLY DRY AIR MASS TO
   THE S OF THE FRONT WILL GRADUALLY EXPAND EWD OVER THE SRN GREAT
   BASIN/SWRN CONUS. HOWEVER...WEAK LOW-LEVEL WINDS SHOULD DETER ANY
   CRITICAL THREAT IN THIS REGION.
   
   IN THE SOUTHEAST...A CYCLONIC CIRCULATION SHOULD MOVE WWD AND
   APPROACH THE GA/SC COAST BY EARLY SUN. LOW-LEVEL E/NELYS SHOULD
   SLOWLY INTENSIFY ALONG THE COAST. FARTHER INLAND...WINDS WILL LIKELY
   REMAIN LIGHT WITH ABOVE-NORMAL TEMPERATURES LENDING TO A BRIEF
   DURATION OF LOW RH.
   
   ..GRAMS.. 09/07/2007
   
   ...PLEASE SEE WWW.SPC.NOAA.GOV/FIRE FOR GRAPHIC PRODUCT...
   
      

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