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 050653
   
   DAY 1 FIRE WEATHER OUTLOOK  
   NWS STORM PREDICTION CENTER NORMAN OK
   0153 AM CDT SUN APR 05 2009
   
   VALID 051200Z - 061200Z
   
   ...CRITICAL FIRE WEATHER AREA FOR SRN/CNTRL TX...
   
   ...SYNOPSIS...
   AN UPPER LOW AND ASSOCIATED SURFACE CYCLONE WILL MOVE EWD THROUGH
   THE MID MS/OH VALLEY REGIONS...THEN EWD TOWARDS THE ERN GREAT LAKES
   LATE IN THE PERIOD. THIS WILL DRIVE A COLD FRONT SEWD THROUGH THE MS
   VALLEY AND INTO THE WRN GULF BY EARLY AFTERNOON...THEN ACROSS THE
   SERN STATES...AND INTO THE APPALACHIANS BY EARLY MON MORNING.
   FOLLOWING THE FRONTAL PASSAGE IN TX...STRONG WINDS WILL ALIGN WITH
   LOW RHS ACROSS MUCH OF CNTRL AND SRN TX. 
   
   IN THE WEST...AMPLIFIED UPPER HIGH PRESSURE WILL DOMINATE...WITH
   WARM TEMPERATURES AT THE SURFACE. DRY CONDITIONS WILL CONTINUE IN
   THE SWRN STATES...ALTHOUGH GENERALLY WITH LIGHT WINDS. AN UPPER LOW
   WILL GRADUALLY MOVE TOWARDS THE CA COAST.
   
   ...CRITICAL FIRE WEATHER AREA - SRN/CNTRL TX...
   
   PRIMARY CONDITIONS: STRONG WINDS...LOW RH...SEVERE TO EXCEPTIONAL
   DROUGHT
   
   A COLD FRONT WILL PUSH SEWD THROUGH TX THIS MORNING...MOVING INTO
   THE WRN GULF BY EARLY AFTERNOON. STRONG NLY WINDS NEAR 15 TO 25 MPH
   WITH HIGHER GUSTS WILL FOLLOW...FIRST AFFECTING CNTRL TX...THEN
   SRN/SERN TX. A VERY DRY AIRMASS HAS BEEN SAMPLED UPSTREAM BY BOTH
   00Z SOUNDINGS AND GOES PWAT DATA...WHICH WILL ALLOW MILD
   TEMPERATURES AND LOW RHS DESPITE THE FRONTAL PASSAGE. HIGHS IN THE
   UPPER 60S TO MID 70S WITH RHS IN THE TEENS TO LOWER 20S ARE LIKELY
   ACROSS CNTRL TX...WHILE HIGHS IN THE LOWER 80S AND RHS IN THE MID
   20S TO LOWER 30S ARE POSSIBLE IN SRN TX. ALTHOUGH AREAS TO THE N
   WILL LIKELY ENCOUNTER STRONGER WINDS...COOLER TEMPERATURES WILL LEAD
   TO RH VALUES ABOVE CRITICAL THRESHOLDS.
   
   ...PORTIONS OF CNTRL VA/WRN MD/CNTRL PA...
   AS THE SURFACE LOW APPROACHES FROM THE W...MILD CONDITIONS WILL
   EXIST ACROSS MUCH OF THE ERN STATES IN SLY WINDS. TEMPERATURES WILL
   WARM INTO THE 60S AND 70S...WHILE RHS WILL DROP INTO THE MID 20S AND
   LOWER 30S. SLY WINDS NEAR 10 TO 15 MPH WILL BE POSSIBLE.
   
   ..HURLBUT.. 04/05/2009
   
   ...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 050731
   
   DAY 2 FIRE WEATHER OUTLOOK  
   NWS STORM PREDICTION CENTER NORMAN OK
   0231 AM CDT SUN APR 05 2009
   
   VALID 061200Z - 071200Z
   
   ...NO CRITICAL AREAS...
   
   ...SYNOPSIS...
   AN UPPER TROUGH WILL AMPLIFY OVER THE ERN CONUS. AT THE SURFACE...A
   LOW PRESSURE WILL DEEPEN OVER THE NERN STATES...WHILE A COLD FRONT
   INITIALLY EXTENDING SWD THROUGH THE APPALACHIANS AND SWWD INTO THE
   FL PANHANDLE PROGRESSES EWD...MOVING INTO THE OPEN ATLANTIC BY
   EVENING...AND THROUGH THE SRN FL PENINSULA OVERNIGHT. STRONG
   NLY/NWLY WINDS WILL AFFECT MUCH OF THE SRN STATES ALTHOUGH WITH
   MARGINAL RHS. FARTHER W OVER TX...RHS WILL BE CRITICAL ACROSS
   CNTRL/SRN TX...ALTHOUGH THE PRESSURE GRADIENT AND ASSOCIATED SURFACE
   WINDS WILL BE WEAKER THAN AREAS TO THE EAST.
   
   IN THE WEST...AN UPPER LOW WILL GRADUALLY BEGIN TO MOVE INTO CNTRL
   CA...AND GUSTY WINDS MAY ALIGN WITH LOW RHS IN SRN CA/NV AND AZ.
   MILD TEMPERATURES WILL PREVAIL ACROSS MUCH OF THE INTERMOUNTAIN WEST
   BENEATH STRONG UPPER RIDGING.
   
   ...CNTRL/SRN TX...
   NLY WINDS WILL CONTINUE FOLLOWING THE D1 FRONTAL PASSAGE.
   HOWEVER...WITH THE RAPID EWD/NEWD MOVEMENT OF LOW PRESSURE OVER THE
   ERN STATES...THE PRESSURE GRADIENT WILL QUICKLY WEAKEN OVER TX...AND
   WINDS WILL BE LIGHTER THAN THE PREVIOUS DAY. ADDITIONALLY...LOW
   LEVEL COLD ADVECTION WILL LEAD TO COOLER TEMPERATURES.
   HOWEVER...GIVEN A VERY DRY AIRMASS...TEMPERATURES IN THE MID 60S
   ACROSS CNTRL TX AND LOW TO MID 70S ACROSS SRN TX WILL STILL BE
   SUFFICIENT TO ALLOW RHS TO DROP INTO THE TEENS AND LOW TO MID 20S.
   WINDS NEAR 10 TO 15 MPH WILL STILL POSE A FIRE THREAT IN AN AREA
   THAT HAS BEEN PLAGUED BY SEVERE TO EXCEPTIONAL DROUGHT...AND THAT
   HAS RECEIVED LITTLE PRECIPITATION RECENTLY. 
   
   ...SRN CA/SRN NV/WRN AZ...
   MILD TEMPERATURES WILL CONTINUE ACROSS THESE AREAS AS AMPLIFIED
   UPPER HIGH PRESSURE LINGERS AHEAD OF AN UPPER LOW APPROACHING THE
   CNTRL CA COAST. RECENT MODEL TRENDS HAVE SLOWED THE EWD PROGRESSION
   OF THIS LOW...WHICH SEEMS REASONABLE GIVEN THE STRENGTH OF THE UPPER
   RIDGE. SHOULD A FASTER PROGRESSION BECOME FAVORED...STRONG SWLY
   WINDS OVERSPREADING THE SWRN STATES WILL COINCIDE WITH MAXIMUM
   HEATING/CRITICALLY LOW RHS...ALLOWING HIGHER GUSTS TO REACH THE
   SURFACE...WHILE THE PRESSURE GRADIENT AT THE SURFACE WILL INCREASE
   AS LOW PRESSURE DEVELOPS INVOF SRN CA. ANY CRITICAL OUTLINE IS
   HIGHLY DEPENDENT UPON THE SPEED OF THE UPPER TROUGH...AND THIS AREA
   WILL BE REEVALUATED TOMORROW.
   
   ..HURLBUT.. 04/05/2009
   
   ...PLEASE SEE WWW.SPC.NOAA.GOV/FIRE FOR GRAPHIC PRODUCT...
   
      

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