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 150627
   
   DAY 1 FIRE WEATHER OUTLOOK  
   NWS STORM PREDICTION CENTER NORMAN OK
   0127 AM CDT THU MAY 15 2008
   
   VALID 151200Z - 161200Z
   
   ...CRITICAL FIRE WEATHER AREA FOR SRN NV...SWRN UT...SRN CA...WRN
   AZ...
   
   ...SYNOPSIS...
   IN THE EAST...A NRN STREAM UPPER TROUGH WILL MERGE WITH A
   REDEVELOPING LOW IN THE SWRN STATES...BECOMING A LONG WAVE TROUGH
   AXIS EXTENDING FROM NERN ONTARIO ROUGHLY THROUGH BAJA CALIFORNIA. IN
   THE SOUTHEAST...HIGH PRESSURE WILL GRADUALLY BREAK DOWN...ALLOWING
   AN INCREASE IN SHOWERS AND THUNDERSTORMS...THAT WILL SLOWLY MOVE
   EWD. 
     
   MEANWHILE IN THE WEST...UPPER HIGH PRESSURE WILL CONTINUE TO
   AMPLIFY...LEADING TO ABOVE NORMAL TEMPERATURES NEAR THE WEST COAST.
   STRONG WINDS AROUND THE PERIPHERY OF THE HIGH AND THE REDEVELOPING
   LOW PRESSURE IN THE SWRN STATES WILL LEAD TO STRONG WINDS AND
   CRITICAL FIRE WEATHER CONDITIONS ACROSS SRN NV...SWRN UT...SRN
   CA...AND WRN AZ...ESPECIALLY NEAR THE LOWER CO RIVER VALLEY.
   
   ...CRITICAL FIRE WEATHER AREA - SRN NV...SWRN UT...SRN CA...WRN
   AZ...
   
   PRIMARY CONDITIONS: STRONG WINDS...LOW RH...DROUGHT
   
   A STRONG NLY TO NELY JET AXIS WILL DEVELOP BETWEEN AMPLIFYING UPPER
   HIGH PRESSURE THAT WILL BUILD ALONG THE WEST COAST...AND A
   REDEVELOPING AREA OF LOW PRESSURE LOCATED ROUGHLY INVOF NM. THIS
   WILL ALLOW SURFACE WIND SPEEDS NEAR 25 TO 35 MPH...WITH HIGHER
   SPEEDS THROUGH THE LOWER COLORADO RIVER VALLEY WHERE CHANNELING WILL
   ALLOW AN INCREASE IN SPEEDS. DEEP MIXING WILL ALLOW JET WINDS TO MIX
   TO THE SURFACE...WITH STRONG GUSTS LIKELY IN THE AFTERNOON. AS
   TEMPERATURES WARM INTO THE LOWER TO UPPER 90S ACROSS THE LOWER
   VALLEYS...RELATIVE HUMIDITIES WILL DROP INTO THE SINGLE DIGITS AND
   LOWER TEENS.
   
   ..HURLBUT.. 05/15/2008
   
   ...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 150628
   
   DAY 2 FIRE WEATHER OUTLOOK  
   NWS STORM PREDICTION CENTER NORMAN OK
   0128 AM CDT THU MAY 15 2008
   
   VALID 161200Z - 171200Z
   
   ...NO CRITICAL AREAS...
   
   ...SYNOPSIS...
   ALONG THE EAST COAST...LONG WAVE LOW PRESSURE WILL DOMINATE...WITH
   COOLER TEMPERATURES BEHIND THE COLD FRONT AND WIDESPREAD
   PRECIPITATION ALONG AND AHEAD OF THE FRONT...KEEPING HIGHER RELATIVE
   HUMIDITIES ACROSS THESE AREAS. 
   
   IN THE WEST...AN UPPER LOW WILL REMAIN NEARLY STATIONARY OVER NRN
   MEXICO...JUST SOUTH OF THE AZ/NM BORDERS. STRONG HIGH PRESSURE WILL
   BUILD ALONG THE WEST COAST...WITH ABOVE NORMAL TEMPERATURES MAINLY
   NEAR THE COASTAL STATES. 
   
   BETWEEN THE TWO SYSTEMS ACROSS THE NRN PLAINS...AN INCREASE IN THE
   PRESSURE GRADIENT WILL CREATE VERY WINDY CONDITIONS.
   
   ...NRN PLAINS...
   VERY WINDY CONDITIONS WILL BE LIKELY IN THE AFTERNOON AS THE
   PRESSURE GRADIENT INCREASES BETWEEN DOMINANT LOW PRESSURE IN THE
   EAST...AND STRENGTHENING HIGH PRESSURE IN THE WEST. WINDS NEAR 20 TO
   30 MPH WITH STRONGER GUSTS IN THE AFTERNOON CAN BE EXPECTED. ATTM
   INDICATIONS ARE THAT DESPITE TEMPERATURES WARMING INTO THE 70S AND
   80S...RELATIVE HUMIDITIES WILL BE MARGINAL. GIVEN VERY DRY AIRMASS
   SHOWN ON SATELLITE IMAGERY IN WATER VAPOR AND GOES PRECIPITABLE
   WATER...IT IS ENTIRELY POSSIBLE THAT RELATIVE HUMIDITIES WILL BE
   LOWER THAN MODEL PROGS...AND THIS AREA MAY NEED TO BE OUTLINED IN A
   CRITICAL BY TOMORROWS FORECAST.
   
   ..HURLBUT.. 05/15/2008
   
   ...PLEASE SEE WWW.SPC.NOAA.GOV/FIRE FOR GRAPHIC PRODUCT...
   
      

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