Storm Prediction Center
Day 1 and Day 2 Fire Weather Outlooks

Day 1 Fire Weather Forecast graphic

   ZCZC SPCFWDDY1 ALL
   FNUS21 KWNS 090828
   
   DAY 1 FIRE WEATHER OUTLOOK  
   NWS STORM PREDICTION CENTER NORMAN OK
   0228 AM CST MON FEB 09 2004
   
   VALID 091200Z - 101200Z
   
   ...NO CRITICAL AREAS...
   
   ...SYNOPSIS...
   BROAD POSITIVELY TILT UPPER TROUGH WILL REMAIN OVER THE CONUS TODAY.
   IN WRN PERIPHERY OF THE LONGWAVE TROUGH...EMBEDDED SHORTWAVE IMPULSE
   WILL SLIDE SEWD ACROSS CA/NV. AT THE SURFACE...STRONG HIGH PRESSURE
   WILL BUILD SEWD THROUGH THE PACIFIC NORTHWEST/GREAT BASIN...
   REINFORCING THE OFFSHORE FLOW ACROSS SRN CA. IN THE EAST...COLD
   FRONT WILL PUSH EWD ACROSS THE OHIO VALLEY/LOWER MISSISSIPPI VALLEY.
   
   ...SRN CA...
   ALTHOUGH THE BULK OF THE DAY WILL REMAIN BELOW CRITICAL FIRE WEATHER
   THRESHOLDS...INCREASING SANTA ANA WIND EVENT WILL CAUSE AN ELEVATED
   FIRE DANGER ACROSS SRN CA TONIGHT.
   
   OFFSHORE/DOWNSLOPE WINDS WILL INCREASE DRAMATICALLY TONIGHT AS
   OFFSHORE GRADIENT INCREASES OWING TO 1040 MB GREAT BASIN HIGH
   PRESSURE. N/NE WINDS TONIGHT WILL BE IN THE 20-30 MPH RANGE WITH
   SIGNIFICANTLY HIGHER GUSTS POSSIBLE. ASIDE FROM THE STRONG OFFSHORE
   GRADIENT /E.G. 8 MB LAS-SAN/...SANTA ANA SCENARIO WILL BE FURTHER
   AIDED BY NEARLY UNIDIRECTIONAL LOW TO MID LEVEL FLOW AND
   SUBSIDENCE/COLD ADVECTION IN WAKE OF PASSING UPPER TROUGH.
   
   IN ADDITION TO THE STRONG WINDS...DOWNSLOPE TRAJECTORIES OFF THE
   HIGHER TERRAIN WILL CONTINUE TO PROMOTE A WARM/DRY AIRMASS ACROSS
   SRN CA TODAY/TONIGHT. AFTERNOON TEMPERATURES WILL BE IN THE UPPER
   60S/LOWER 70S. RH VALUES COINCIDENT WITH PEAK HEATING WILL BE 10-15
   PERCENT...WITH VERY POOR RH RECOVERIES OVERNIGHT.
   
   ..GUYER.. 02/09/2004
   
   ...PLEASE SEE WWW.SPC.NOAA.GOV/FIRE FOR GRAPHIC PRODUCT...
   
      
Day 2 Fire Weather Forecast graphic

   ZCZC SPCFWDDY2 ALL
   FNUS22 KWNS 090833
   
   DAY 2 FIRE WEATHER OUTLOOK  
   NWS STORM PREDICTION CENTER NORMAN OK
   0233 AM CST MON FEB 09 2004
   
   VALID 101200Z - 111200Z
   
   ...CRITICAL FIRE WEATHER AREA FOR SRN CA...
   
   ...SYNOPSIS...
   MID/UPPER TROUGH ACROSS FAR SRN CA/BAJA AT THE ONSET OF THE PERIOD
   WILL MIGRATE EWD OVER NRN MEXICO. FURTHER NORTH...SEVERAL SHORTWAVE
   TROUGHS WILL MOVE ACROSS THE UPPER MISSISSIPPI VALLEY/NORTHEAST
   STATES. ALTHOUGH HIGH PRESSURE OVER THE PACIFIC NORTHWEST/GREAT
   BASIN MAY WEAKEN SLIGHTLY...STRONG OFFSHORE PRESSURE GRADIENT WILL
   NEVERTHELESS REMAIN ACROSS SRN CA THROUGH THE PERIOD.
   
   ...CRITICAL FIRE WEATHER AREA 1 - SRN CA...
   
   PRIMARY CONDITIONS: SANTA ANA WINDS / LOW RH / WARM TEMPERATURES
   
   SANTA ANA EVENT WILL BE ONGOING AT THE BEGINNING OF THE PERIOD. N/NE
   WINDS OF 20-30 MPH WITH SIGNIFICANTLY HIGHER GUSTS ARE EXPECTED BOTH
   TUESDAY MORNING AND AGAIN TUESDAY NIGHT/WEDNESDAY MORNING. IN
   ADDITION TO THE STRONG WINDS...OVERALL PERSISTENT PATTERN OF STRONG
   OFFSHORE GRADIENT WILL CONTINUE TO PROMOTE A WARM/DRY AIRMASS ACROSS
   SRN CA. AFTERNOON TEMPERATURES WILL AGAIN BE IN THE UPPER 60S/LOWER
   70S. RH VALUES COINCIDENT WITH PEAK HEATING WILL BE AS LOW AS 10
   PERCENT...WITH VERY POOR OVERNIGHT RH RECOVERIES TUESDAY NIGHT/
   WEDNESDAY MORNING.
   
   GIVEN LITTLE EXPECTED CHANGE IN THE OVERALL PATTERN...SANTA ANA
   WINDS AND AN ELEVATED FIRE DANGER WILL LIKELY PERSIST INTO WEDNESDAY
   AND THURSDAY.
   
   ..GUYER.. 02/09/2004
   
   ...PLEASE SEE WWW.SPC.NOAA.GOV/FIRE FOR GRAPHIC PRODUCT...
   
      

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