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 310858
   
   DAY 1 FIRE WEATHER OUTLOOK  
   NWS STORM PREDICTION CENTER NORMAN OK
   0358 AM CDT SUN AUG 31 2008
   
   VALID 311200Z - 011200Z
   
   ...CRITICAL FIRE WEATHER AREA FOR PORTIONS OF CA/GREAT BASIN...
   ...CRITICAL FIRE WEATHER AREA FOR PORTIONS OF THE NRN HIGH PLAINS...
   
   ...SYNOPSIS...
   A SEASONABLY STRONG UPPER TROUGH WILL DIG SEWD INTO THE GREAT BASIN
   TODAY. AHEAD OF THIS TROUGH...SWLY SFC WINDS WILL INCREASE OVER THE
   GREAT BASIN AND PORTIONS OF INTERIOR CA SUPPORTING THE DEVELOPMENT
   OF CRITICAL FIRE WEATHER CONDITIONS OVER THIS REGION. FURTHER
   EAST...A DEEPENING AREA OF SFC LOW PRESSURE OVER ND AND TIGHTENING
   OF THE PRESSURE GRADIENT OVER THE NRN PLAINS WILL SUPPORT MODERATE
   SLY WINDS OVER THE NRN/CENTRAL PLAINS. COMBINED WITH LOW RH
   READINGS...ANOTHER AREA OF CRITICAL FIRE WEATHER CONDITIONS WILL
   DEVELOP THIS AFTERNOON OVER THE NRN HIGH PLAINS. ELSEWHERE ACROSS
   THE NATION...NO OTHER CRITICAL FIRE WEATHER CONDITIONS ARE EXPECTED.
   
   ...CRITICAL FIRE WEATHER AREA - PORTIONS OF INTERIOR
   CA...CENTRAL/SRN NV...PORTIONS OF FAR WRN UT...
   
   PRIMARY CONDITIONS: SUSTAINED SWLY WINDS FROM 20-30 MPH WITH GUSTS
   OVER 40 MPH...MIN RH READINGS FROM 10-15 PERCENT
   
   AHEAD OF A SEASONABLY STRONG UPPER TROUGH/SFC COLD FRONT...ANOTHER
   DAY OF CRITICAL FIRE WEATHER CONDITIONS IS EXPECTED TODAY FROM
   CENTRAL CA NEWD INTO WCENTRAL/NWRN UT /WHERE AN AREA OF DEEPENING
   SFC LOW PRESSURE WILL BE LOCATED/. MODERATE SWLY WINDS FROM 20-30
   MPH WITH GUSTS OVER 40 MPH ARE EXPECTED GIVEN THE PRESENCE OF STEEP
   LOW-MID LEVEL LAPSE RATES AND MODERATE LOW-MID LEVEL WIND FIELDS. AS
   THE COLD FRONT MOVES THROUGH THE REGION...WINDS WILL SHIFT TO THE
   NW...WITH IMPROVING RH READINGS.
   
   ...CRITICAL FIRE WEATHER AREA - PORTIONS OF ND/SD...
   
   PRIMARY CONDITIONS: SUSTAINED SLY WINDS FROM 20-25 MPH WITH GUSTS
   OVER 30 MPH...MIN RH READINGS FROM 20-25 PERCENT
   
   SOUTH OF A STRENGTHENING AREA OF LOW PRESSURE OVER ND...A LEE TROUGH
   WILL EXTEND SWD INTO THE CENTRAL HIGH PLAINS. A MODERATE PRESSURE
   GRADIENT EAST OF THIS LEE TROUGH WILL PRODUCE SUSTAINED SLY WINDS
   FROM 20-25 MPH WITH HIGHER GUSTS. GIVEN WELL ABOVE NORMAL
   TEMPERATURES IN THE 90S AND LIMITED LOW LEVEL MOISTURE /AWAY FROM
   THE MAIN AXIS OF HIGHER DEWPTS IN CENTRAL SD/ MIN RH READINGS FROM
   20-25 PERCENT CAN BE EXPECTED.
   
   ...NRN CA...
   IN THE WAKE OF AN UPPER TROUGH...SFC HIGH PRESSURE WILL DEVELOP SEWD
   INTO THE PAC NW TONIGHT. INCREASING OFFSHORE WINDS WILL OCCUR IN
   RESPONSE TO OFFSHORE PRESSURE GRADIENT. GIVEN THE LIMITED DURATION
   OF THE LOW RH READINGS /LESS THAN 20 PERCENT/ LATE IN THE PERIOD
   WHEN SFC WINDS INCREASE...THE AREA WILL NOT BE INCLUDED IN A
   CRITICAL FIRE WEATHER OUTLOOK AREA.
   
   ..CROSBIE.. 08/31/2008
   
   ...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 310859
   
   DAY 2 FIRE WEATHER OUTLOOK  
   NWS STORM PREDICTION CENTER NORMAN OK
   0359 AM CDT SUN AUG 31 2008
   
   VALID 011200Z - 021200Z
   
   ...CRITICAL FIRE WEATHER AREA FOR A PORTION OF NRN/CENTRAL CA...
   
   ...SYNOPSIS...
   AN UPPER TROUGH WILL EJECT NEWD FROM THE ROCKIES INTO THE NRN PLAINS
   TOMORROW. AS A RESULT...A SFC COLD FRONT WILL MOVE SWD THROUGH THE
   HIGH PLAINS/ROCKIES REGION...ENDING CRITICAL FIRE WEATHER CONDITIONS
   OVER THE NRN PLAINS AND GREAT BASIN. IN THE WAKE OF THE UPPER
   TROUGH...SFC HIGH PRESSURE WILL BUILD SWD THROUGH NRN ROCKIES/GREAT
   BASIN. THE RESULT WILL BE AN INCREASE IN OFFSHORE WINDS MAINLY OVER
   THE HIGHER TERRAIN OF NRN/CENTRAL CA LEADING TO CRITICAL FIRE
   WEATHER CONDITIONS. ELSEWHERE ACROSS THEN NATION...NO OTHER CRITICAL
   FIRE WEATHER CONDITIONS ARE EXPECTED.
   
   ...CRITICAL FIRE WEATHER AREA - INTERIOR PORTIONS OF NRN/CENTRAL
   CA...
   
   PRIMARY CONDITIONS: SUSTAINED NELY WINDS FROM 20-30 MPH...MIN RH
   READINGS LESS THAN 15 PERCENT...POOR RH RECOVERY
   
   AS HIGH PRESSURE BUILDS SWD THROUGH THE GREAT BASIN/ROCKIES AND A
   SFC LOW PRESSURE TROUGH REMAINS ALONG THE CA COAST...A MODERATE
   OFFSHORE PRESSURE GRADIENT WILL DEVELOP THROUGH THE PERIOD. AS A
   RESULT...SUSTAINED NELY WINDS WILL AVERAGE AROUND 20 MPH WITH GUSTS
   UP TO 45 MPH IN THE HIGHER TERRAIN ESPECIALLY OVERNIGHT /AFTER
   02/00Z/. WARM TEMPERATURES COMBINED WITH DRY AIR /DEWPTS IN THE
   TEENS/20S/ WILL PRODUCE MIN RH READINGS FROM 10-15 PERCENT /LOWEST
   IN THE HIGHER TERRAIN/ LEADING TO A CRITICAL FIRE WEATHER THREAT.
   
   ...CENTRAL PLAINS...
   SOUTH OF A COLD FRONT MOVING THROUGH THE NRN PLAINS AND CENTRAL
   ROCKIES...SLY WINDS WILL REMAIN MODERATE TOMORROW OVER PORTIONS OF
   ERN CO/WRN KS AND WRN NEB. WARM TEMPERATURES IN THE 80S/90S COMBINED
   WITH DEWPTS IN THE 40/50S WILL PRODUCE MIN RH READINGS LESS THAN 20
   PERCENT. MARGINALLY LOW RH READINGS COMBINED WITH RELATIVELY HIGH
   FUEL MOISTURE VALUES WILL PRECLUDE A CRITICAL FIRE WEATHER OUTLOOK
   AREA.
   
   ..CROSBIE.. 08/31/2008
   
   ...PLEASE SEE WWW.SPC.NOAA.GOV/FIRE FOR GRAPHIC PRODUCT...
   
      

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