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 180850
   
   DAY 1 FIRE WEATHER OUTLOOK  
   NWS STORM PREDICTION CENTER NORMAN OK
   0350 AM CDT WED OCT 18 2006
   
   VALID 181200Z - 191200Z
   
   ...CRITICAL FIRE WEATHER AREA FOR PORTIONS OF SRN CA...
   
   ...SYNOPSIS...
   AN UPPER TROUGH OVER THE SWRN STATES WILL OPEN UP WHILE MOVING EWD
   INTO THE SRN PLAINS BY TONIGHT. IN THE WAKE OF THIS TROUGH...SFC
   HIGH PRESSURE WILL BUILD SWD THROUGH THE GREAT BASIN. THIS WILL
   SUPPORT AN INCREASING OFFSHORE PRESSURE GRADIENT AND SANTA ANA WIND
   EVENT OVER SRN CA THROUGH FRIDAY. THE STRONGEST WINDS ARE EXPECTED
   TO OCCUR THROUGH PASSES AND BELOW CANYONS EARLY THIS MORNING...AND
   AGAIN OVERNIGHT. ALONG WITH LOW RH READINGS...THESE CONDITIONS WILL
   SUPPORT A CRITICAL FIRE WEATHER THREAT. ELSEWHERE ACROSS THE
   NATION...A SFC COLD FRONT WILL MOVE SWD THROUGH THE SRN PLAINS AND
   SCT PRECIPITATION WILL AGAIN OCCUR ALONG MUCH OF THE GULF COAST.
   
   ...CRITICAL FIRE WEATHER AREA - COASTAL MTNS/VALLEYS OF SRN CA...
   
   PRIMARY CONDITIONS: SUSTAINED NELY WINDS FROM 25-35 MPH WITH GUSTS
   UP TO 50 MPH...MIN RH VALUE AROUND 15 PERCENT AND POOR RH RECOVERY
   
   A STRONG COLD FRONT WILL PUSH SWD ACROSS SRN CA THROUGH THE
   REMAINDER OF THE MORNING. IN THE WAKE OF THE COLD FRONT...AN
   INCREASING PRESSURE GRADIENT WILL SUPPORT NELY WINDS FROM 25-35 MPH
   WITH GUSTS UP TO 50 MPH EARLY THIS MORNING...ESPECIALLY OVER THE
   HIGHER TERRAIN. DRIER AIR WILL CONTINUE TO ADVECT INTO THE AREA FROM
   THE HIGH DESERTS. AS TEMPERATURES WARM BACK TO NEAR NORMAL...MIN RH
   READINGS WILL FALL TO AROUND 15 PERCENT. OVERNIGHT...WINDS ARE
   EXPECTED TO INCREASE AGAIN AS THE PRESSURE GRADIENT RE-STRENGTHENS.
   SUSTAINED SPEEDS OVER 25 MPH WITH GUSTS OVER 40 MPH ARE
   ANTICIPATED...WITH THE STRONGEST WINDS ANTICIPATED TO OCCUR BELOW
   PASSES/CANYONS.
   
   ...NRN/CENTRAL CA...
   OFFSHORE PRESSURE GRADIENT WILL BE WEAKER THAN FURTHER
   SOUTH...SUPPORTING ONLY MODEST OFFSHORE WINDS IN THE HIGHER TERRAIN
   EARLY THIS MORNING AND AGAIN LATE TONIGHT. SUSTAINED SPEEDS AROUND
   15 MPH WITH OCCASIONAL GUSTS OVER 25 MPH WILL BE POSSIBLE. LOW RH
   READINGS AROUND 15 PERCENT WILL BE POSSIBLE IN SOME INTERIOR
   LOCATIONS THIS AFTERNOON AS DRIER AIR COMBINES WITH WARMING
   TEMPERATURES.
   
   ...LOWER CO RIVER VALLEY...
   IN THE WAKE OF THE UPPER TROUGH/SFC COLD FRONT...NLY WINDS WILL
   INCREASE EARLY THIS MORNING OVER THE LOWER CO RIVER VALLEY. COOLER
   THAN NORMAL TEMPERATURES NEAR 80 F WILL COMBINE WITH LOW DEWPTS TO
   SUPPORT MIN RH READINGS NEAR 15 PERCENT. THE STRONGEST WINDS
   /SUSTAINED NEAR 20 MPH/ ARE ANTICIPATED TO RELAX BY THE AFTERNOON
   WHEN THE LOWEST RH READINGS WILL OCCUR. THEREFORE A CRITICAL FIRE
   WEATHER THREAT DOES NOT APPEAR LIKELY.
   
   ..CROSBIE.. 10/18/2006
   
   ...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 180851
   
   DAY 2 FIRE WEATHER OUTLOOK  
   NWS STORM PREDICTION CENTER NORMAN OK
   0351 AM CDT WED OCT 18 2006
   
   VALID 191200Z - 201200Z
   
   ...CRITICAL FIRE WEATHER AREA FOR PORTIONS OF SRN CA...
   
   ...SYNOPSIS...
   A BROAD UPPER TROUGH WILL BE DOMINANT OVER MOST OF THE CENTRAL/ERN
   CONUS TOMORROW. MEANWHILE...UPPER RIDGING WILL RESIDE OVER THE WRN
   CONUS SUPPORTING ABOVE NORMAL TEMPERATURES. AT THE SFC...HIGH
   PRESSURE WILL SLOWLY WEAKEN OVER THE GREAT BASIN. HOWEVER THE
   OFFSHORE GRADIENT WILL REMAIN SUFFICIENT TO SUPPORT A CONTINUATION
   OF CRITICAL FIRE WEATHER CONDITIONS TO PORTIONS OF SRN CA WHERE THE
   WARMEST TEMPERATURES/STRONGEST WINDS WILL EXIST.
   
   ...CRITICAL FIRE WEATHER AREA - COASTAL MTNS/VALLEYS OF SRN CA...
   
   PRIMARY CONDITIONS: SUSTAINED NELY WINDS FROM 20-30 MPH WITH GUSTS
   OVER 40 MPH BELOW PASSES/CANYONS...MIN RH READINGS AROUND 10
   PERCENT...POOR RH RECOVERY
   
   THE OFFSHORE GRADIENT WILL REMAIN MODERATE AT THE START OF THE DAY 2
   PERIOD /8-10 MB/ BETWEEN SRN NV AND THE SRN CA COAST. THIS SHOULD
   SUPPORT ANOTHER MORNING OF NELY WINDS OF 25+ MPH WITH GUSTS OVER 40
   MPH. MIN RH READINGS FROM 10-15 PERCENT ARE EXPECTED ACROSS MOST OF
   THE INTERIOR VALLEYS/MTNS DURING THE AFTERNOON AS A RESULT OF THE
   PRESENCE OF UPPER RIDGING COMBINED WITH DRY FLOW FROM THE HIGH
   DESERTS. SUSTAINED WINDS AROUND 20 MPH WITH GUSTS OVER 30 MPH WILL
   RE-INTENSIFY EARLY FRIDAY MORNING GIVEN THE REMNANT OFFSHORE
   PRESSURE GRADIENT. THESE WINDS WILL SUPPORT POOR RH RECOVERY
   OVERNIGHT...ESPECIALLY IN THE HIGHER TERRAIN.
   
   ..CROSBIE.. 10/18/2006
   
   ...PLEASE SEE WWW.SPC.NOAA.GOV/FIRE FOR GRAPHIC PRODUCT...
   
      

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