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 230943
   
   DAY 1 FIRE WEATHER OUTLOOK  
   NWS STORM PREDICTION CENTER NORMAN OK
   0343 AM CST FRI NOV 23 2007
   
   VALID 231200Z - 241200Z
   
   ...CRITICAL FIRE WEATHER AREA FOR COASTAL AREAS OF SOUTHERN CA...
   ...CRITICAL FIRE WEATHER AREA FOR SOUTHEAST CA AND THE LOWER CO
   RIVER VALLEY...
   
   ...SYNOPSIS...
   PRIMARY FIRE WEATHER CONCERN THROUGH THE WEEKEND WILL BE FOCUSED ON
   SOUTHERN CA. THE LARGE SCALE UPPER FLOW PATTERN WILL GRADUALLY SPLIT
   TODAY...HIGHLIGHTED BY AN UPPER TROUGH CENTERED OVER THE GREAT
   LAKES/NORTHEAST STATES...AND A SECONDARY IMPULSE SLIDING
   SOUTHEASTWARD OVER THE SOUTHWEST STATES. HIGH PRESSURE BUILDING
   ACROSS THE GREAT BASIN/INTERMOUNTAIN WEST WILL CAUSE THE OFFSHORE
   GRADIENT TO INCREASE ACROSS CA...LEADING TO A HEIGHTENED FIRE
   DANGER. OTHERWISE...THE INFLUENCE OF HIGH PRESSURE AND COOL/DRY
   CONDITIONS WILL LARGELY DOMINATE LOCALES EAST OF THE ROCKIES.
   
   ...CRITICAL FIRE WEATHER AREA - COASTAL AREAS OF SOUTHERN CA...
   
   PRIMARY CONDITIONS: STRONG/GUSTY OFFSHORE WINDS AND LOW RH/EXTREME
   DROUGHT
   
   OFFSHORE GRADIENT WILL STRENGTHEN THROUGH TONIGHT AS HIGH PRESSURE
   BUILDS ACROSS THE GREAT BASIN...ALL WHILE DEEP LAYER NORTHEASTERLY
   FLOW DEVELOPS IN THE WAKE OF THE SOUTHEAST-SHIFTING UPPER TROUGH.
   THE FIRE DANGER WILL INCREASE ACROSS SOUTHERN CA ACCORDINGLY AS
   WINDS STEADILY INCREASE AND OFFSHORE/DOWNSLOPE TRAJECTORIES LEAD TO
   A DRYING AIRMASS INTO SATURDAY. THE CULMINATION OF THE MODERATE TO
   POTENTIALLY STRONG OFFSHORE EVENT IS EXPECTED TONIGHT INTO THE FIRST
   PART OF SATURDAY...WITH THE POTENTIAL FOR 20-40 MPH SUSTAINED WINDS
   AND SIGNIFICANTLY HIGHER GUSTS THE LATTER HALF OF THE PERIOD FOR THE
   COASTAL RANGE AND ADJACENT COASTAL AREAS. GIVEN THE ORIENTATION OF
   THE OFFSHORE GRADIENT...WIND GUST POTENTIAL AND RESULTANT CRITICAL
   CONDITIONS APPEAR MOST LIKELY ACROSS VENTURA/LOS ANGELES
   COUNTIES...AS WELL AS ADJACENT PORTIONS OF ORANGE/RIVERSIDE AND SAN
   BERNARDINO COUNTIES. RH RECOVERY TONIGHT WILL BE VERY POOR.
   
   ...CRITICAL FIRE WEATHER AREA - SOUTHEAST CA AND THE LOWER CO RIVER
   VALLEY...
   
   PRIMARY CONDITIONS: STRONG/GUSTY WINDS AND LOW RH/EXTREME DROUGHT
   
   WITH HIGH PRESSURE ACROSS THE GREAT BASIN...DOWNSLOPE TRAJECTORIES
   WILL ALSO EXIST ACROSS THE LOWER CO RIVER VALLEY AND SOUTHEAST CA.
   NORTHERLY WINDS WILL BE INCREASING THIS AFTERNOON INTO
   SATURDAY...WITH THE POTENTIAL FOR SUSTAINED 15-30 MPH WINDS WITH
   HIGHER GUSTS. THE DOWNSLOPE TRAJECTORIES WILL LEAD TO A
   WARMING/DRYING AIRMASS INTO SATURDAY...WITH CRITICALLY LOW RH VALUES
   COUPLED WITH THE STRONG/GUSTY WINDS RESULTING IN A CRITICAL FIRE
   DANGER AS EXTREME DROUGHT CONTINUES.
   
   ..GUYER.. 11/23/2007
   
   ...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 231001
   
   DAY 2 FIRE WEATHER OUTLOOK  
   NWS STORM PREDICTION CENTER NORMAN OK
   0401 AM CST FRI NOV 23 2007
   
   VALID 241200Z - 251200Z
   
   ...CRITICAL FIRE WEATHER AREA FOR COASTAL AREAS OF SOUTHERN CA...
   ...CRITICAL FIRE WEATHER AREA FOR SOUTHEAST CA AND THE LOWER CO
   RIVER VALLEY...
   
   ...SYNOPSIS...
   SPLIT UPPER FLOW REGIME WILL CONTINUE ON SATURDAY...WITH AN ACTIVE
   NORTHERN STREAM/STRONG WESTERLIES ACROSS THE NORTHERN TIER OF
   STATES...WHILE AN UPPER TROUGH IN THE SOUTHERN STREAM CROSSES THE
   SOUTHERN ROCKIES/NORTHERN MEXICO. WHILE STRONG OFFSHORE/DOWNSLOPE
   WINDS ARE INITIALLY EXPECTED ACROSS SOUTHERN CA AND THE LOWER CO
   RIVER VALLEY...WEAKENING GREAT BASIN HIGH PRESSURE WILL LEAD TO A
   RELAXING GRADIENT THROUGH THE AFTERNOON/EVENING. OTHERWISE...HIGH
   PRESSURE WILL REMAIN PREVALENT FOR AREAS EAST OF THE ROCKIES.
   
   ...CRITICAL FIRE WEATHER AREA - COASTAL AREAS OF SOUTHERN CA...
   
   PRIMARY CONDITIONS: STRONG/GUSTY OFFSHORE WINDS AND LOW RH/EXTREME
   DROUGHT
   
   AS A MODERATELY STRONG OFFSHORE PRESSURE GRADIENT
   PERSISTS...STRONG/GUSTY WINDS WILL BE ONGOING SATURDAY MORNING FOR
   THE COASTAL AREAS OF SOUTHERN CA. SUSTAINED WINDS OF 20-40 MPH ARE
   LIKELY...WITH THE POTENTIAL FOR SIGNIFICANTLY HIGHER GUSTS. AS HIGH
   PRESSURE WEAKENS ACROSS THE GREAT BASIN DURING THE DAY...THE
   OFFSHORE GRADIENT SHOULD GRADUALLY RELAX DURING THE LATTER PART OF
   SATURDAY...WITH THE GUSTY WINDS DIMINISHING. EVEN SO...RELATIVELY
   MILD TEMPERATURES AND VERY LOW AFTERNOON RH VALUES /8-15 PERCENT/
   WILL NEVERTHELESS PERSIST AND RESULT IN A HIGH FIRE DANGER THROUGH
   THE PERIOD.
   
   ...CRITICAL FIRE WEATHER AREA - SOUTHEAST CA AND THE LOWER CO RIVER
   VALLEY...
   
   PRIMARY CONDITIONS: STRONG/GUSTY OFFSHORE WINDS AND LOW RH/EXTREME
   DROUGHT
   
   A HIGH FIRE DANGER WILL CONTINUE ACROSS SOUTHEAST CA AND THE LOWER
   CO RIVER VALLEY VIA STRONG/GUSTY WINDS AND LOW RH COUPLED WITH
   EXTREME DROUGHT. AS DOWNSLOPE TRAJECTORIES CONTINUE
   SATURDAY...SUSTAINED NORTHERLY WINDS OF 20-30 MPH ARE LIKELY...WITH
   CONSIDERABLY HIGHER GUSTS POSSIBLE THROUGH THE AFTERNOON. MILD
   TEMPERATURES IN THE 60S/70S ARE EXPECTED...ALONG WITH AFTERNOON RH
   VALUES AS LOW AS 8-15 PERCENT.
   
   ..GUYER.. 11/23/2007
   
   ...PLEASE SEE WWW.SPC.NOAA.GOV/FIRE FOR GRAPHIC PRODUCT...
   
      

Fire Weather/Forecast Products/Home