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 300842
   
   DAY 1 FIRE WEATHER OUTLOOK  
   NWS STORM PREDICTION CENTER NORMAN OK
   0242 AM CST THU NOV 30 2006
   
   VALID 301200Z - 011200Z
   
   ...CRITICAL FIRE WEATHER AREA FOR SRN CA COASTAL AREA...
   ...CRITICAL FIRE WEATHER AREA FOR LOWER RIO GRANDE VALLEY...
   
   ...SYNOPSIS...
   A POWERFUL UPPER-LEVEL LOW CENTERED OVER THE SRN HIGH PLAINS WILL
   INDUCE INTENSE CYCLOGENESIS TODAY AS IT LIFTS E/NEWD TOWARDS THE
   MID-MS RIVER VALLEY. AN ARCTIC COLD FRONT WILL CONTINUE TO PLOW SEWD
   FROM THE SRN PLAINS INTO THE WRN GULF OF MEXICO. BEHIND THIS
   SYSTEM...AN EXPANSIVE AREA OF HIGH PRESSURE ACROSS THE INTERMOUNTAIN
   WEST WILL WEAKEN AS AN ALBERTA CLIPPER TRACKS SEWD TOWARDS THE FAR
   NRN HIGH PLAINS.
   
   ...CRITICAL FIRE WEATHER AREA - SRN CA COASTAL AREA...
   
   PRIMARY CONDITIONS: VERY LOW RH / OFFSHORE WINDS / LONG-TERM DRYNESS
   
   ONGOING SANTA ANA WINDS WILL GRADUALLY SUBSIDE AS HIGH PRESSURE
   WEAKENS ACROSS THE ERN GREAT BASIN. HOWEVER...VERY LOW RH VALUES
   WILL CONTINUE WITH POOR OVERNIGHT RH RECOVERIES. THE GREATEST IMPACT
   WILL GENERALLY REMAIN IMMEDIATELY DOWNSLOPE OF THE COASTAL RANGE
   BELOW 2000 FT ELEVATION. HERE...TEMPERATURES WILL WARM INTO THE 60S
   TO LOWER 70S THIS AFTERNOON WITH MIN RH VALUES OF 2 TO 6 PERCENT.
   SUSTAINED WINDS SHOULD DROP BELOW 20 MPH IN MOST AREAS BY LATE
   AFTERNOON...BUT WILL REMAIN LOCALLY GUSTY IN FAVORED CANYONS/PASSES.
   
   ...CRITICAL FIRE WEATHER AREA - LOWER RIO GRANDE VALLEY...
   
   PRIMARY CONDITIONS: STRONG WINDS / LOW RH / HIGH KBDI
   
   AS AN ARCTIC COLD FRONT PUSHES THROUGH THE AREA LATER THIS
   MORNING...MUCH COOLER AND DRIER AIR WILL INVADE THE LOWER RIO GRANDE
   BY EARLY AFTERNOON. GUSTY NWLY WINDS WILL ACCOMPANY THE FRONTAL
   PASSAGE AND BE MAINTAINED THROUGH THE AFTERNOON. STRONG SUBSIDENCE
   IN THE WAKE OF THE OK/N TX UPPER LOW COMBINED WITH AN INTENSIFYING
   SURFACE PRESSURE GRADIENT WILL AID IN A 40 TO 50 MPH LOW-LEVEL JET
   DEVELOPING BY EARLY AFTERNOON. AS LOW-LEVEL LAPSE RATES
   STEEPEN...SUSTAINED SURFACE WINDS WILL REACH 25 TO 35 MPH WITH GUSTS
   AROUND 45 MPH. ALTHOUGH TEMPERATURES WILL COOL INTO THE 50S TO MID
   60S...DEW POINTS WILL RAPIDLY FALL INTO THE TEENS /PER UPSTREAM OBS
   ACROSS SW TX/. RH VALUES WILL DROP TO 15 TO 25 PERCENT.
   
   ..GRAMS.. 11/30/2006
   
   ...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 300938
   
   DAY 2 FIRE WEATHER OUTLOOK  
   NWS STORM PREDICTION CENTER NORMAN OK
   0338 AM CST THU NOV 30 2006
   
   VALID 011200Z - 021200Z
   
   ...CRITICAL FIRE WEATHER AREA FOR SRN CA COASTAL RANGE...
   
   ...SYNOPSIS...
   A POTENT AND COMPACT UPPER-LEVEL LOW EXPECTED TO BE IN VICINITY OF
   THE MID-MS RIVER VALLEY 12Z FRI...WILL LIFT NEWD AS AN UPSTREAM
   TROUGH AMPLIFIES ACROSS THE UPPER MIDWEST. THESE SYSTEMS WILL
   PROVIDE BROAD CYCLONIC UPPER-LEVEL FLOW ACROSS MUCH OF THE CONUS
   WITH A RIDGE ALONG THE W COAST. A WEAK SHORTWAVE TROUGH IS EXPECTED
   TO DROP SSEWD ACROSS THE NRN/CNTRL ROCKIES EARLY SATURDAY. BEHIND
   THIS SYSTEM...AN AREA OF SURFACE HIGH PRESSURE WILL BUILD SWD INTO
   THE PACIFIC NW/NRN GREAT BASIN.
   
   ...CRITICAL FIRE WEATHER AREA - SRN CA COASTAL RANGE...
   
   PRIMARY CONDITIONS: LOW RH / OFFSHORE WINDS / LONG-TERM DRYNESS
   
   OFFSHORE FLOW SHOULD CONTINUE TO WEAKEN FROM DAY 1 WITH A MODEST
   SURFACE PRESSURE GRADIENT ACROSS THE AREA. HOWEVER...POOR OVERNIGHT
   RH RECOVERIES SHOULD BE ONGOING AND RATHER LOW DAYTIME RH WILL
   CONTINUE ALONG AND IMMEDIATELY DOWNSLOPE OF THE COASTAL MTNS.
   TEMPERATURES WILL WARM INTO THE 60S TO MID 70S WITH MIN RH VALUES OF
   5 TO 10 PERCENT. WINDS ARE EXPECTED TO INCREASE EARLY SATURDAY
   /09-12Z/ AS THE SURFACE PRESSURE GRADIENT INTENSIFIES TO THE S OF
   HIGH PRESSURE EXPANDING INTO THE NRN GREAT BASIN. A SURGE OF
   SUSTAINED WINDS OF 20 TO 25 MPH WITH GUSTS APPROACHING 40 MPH SHOULD
   OCCUR ACROSS CANYONS/PASSES.
   
   ...LOWER CO RIVER VALLEY...
   DRY NLY FLOW WILL CONTINUE...WITH THE LOW-LEVEL AIR MASS SLOWLY
   MODIFYING FROM RELATIVELY COOL CONDITIONS OF WED/THU. TEMPERATURES
   WILL WARM BACK INTO THE 60S AS RH VALUES DROP TO AROUND 10 PERCENT
   DURING THE AFTERNOON. HOWEVER...AFTERNOON WINDS WILL BE FAIRLY
   WEAK...AROUND 10 MPH.
   
   ..GRAMS.. 11/30/2006
   
   ...PLEASE SEE WWW.SPC.NOAA.GOV/FIRE FOR GRAPHIC PRODUCT...
   
      

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