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 141855
   
   DAY 1 FIRE WEATHER OUTLOOK RESENT 1
   NWS STORM PREDICTION CENTER NORMAN OK
   0155 PM CDT MON SEP 14 2009
   
   VALID 141200Z - 151200Z
   
   ...CRITICAL FIRE WEATHER AREA FOR NERN NV/NRN UT/SRN ID...
   
   ...SYNOPSIS...
   ...RESENT PER REQUEST...
   
   AN UPPER TROUGH WILL MOVE EWD INTO THE GREAT BASIN...WHILE A SECOND
   UPPER LOW NEAR THE SRN ALBERTA/SASKATCHEWAN BORDER CONTINUES TO
   DRIFT NWD. MEANWHILE AT THE SURFACE...A TROUGH AXIS INITIALLY
   POSITIONED OVER ERN WA/ORE...WRN ID...AND NRN NV WILL SLOWLY SHIFT
   EWD THROUGH THE DAY AHEAD OF THE APPROACHING UPPER TROUGH...BECOMING
   ORIENTED ROUGHLY THROUGH WRN MT SWWD INTO ID/NV/CNTRL CA BY
   AFTERNOON. DRY THUNDERSTORMS WILL BE POSSIBLE ACROSS PORTIONS OF
   NV/UT/ID. RELATIVE HUMIDITIES ARE ANTICIPATED TO REMAIN ABOVE
   CRITICAL THRESHOLDS...WHILE WINDS AT THE SURFACE WILL BE
   SUBCRITICAL.
   
   ...CRITICAL FIRE WEATHER AREA - NERN NV/NRN UT/SRN ID...
   
   PRIMARY CONDITIONS: DRY THUNDERSTORMS
   
   AN UPPER TROUGH OBSERVED ON WV IMAGERY NEAR THE CA/ORE COASTS AS OF
   07Z WILL PROGRESS EWD AND BECOME MORE NEGATIVELY TILTED THROUGH THE
   DAY. ORIENTATION OF THE SYSTEM AND A SURFACE TROUGH AXIS WILL
   SUPPORT VERTICAL MOTION FOR THUNDERSTORM DEVELOPMENT THROUGH THE
   PERIOD...MAINLY OVER PORTIONS OF NERN NV/NRN UT/SRN ID. MID LEVEL
   MOISTURE REMAINS SUFFICIENT...WHILE COOLING ALOFT WITH THE APPROACH
   OF THE SYSTEM WILL FURTHER DESTABILIZE THE ATMOSPHERE...AND MAY
   FAVOR MORE WIDESPREAD COVERAGE OF STORMS COMPARED TO YESTERDAY. 00Z
   SOUNDINGS REFLECT DRY LOW LEVELS...PRIMARILY BELOW 600 MB...WHICH AS
   HEATING OCCURS AND LOW LEVEL LAPSE RATES BEGIN TO STEEPEN...DRY
   THUNDERSTORMS WILL BE POSSIBLE. GREATER MOISTURE OBSERVED ON RECENT
   PWAT IMAGERY IS GRADUALLY SHIFTING NEWD...AND A SHIFT FROM DRY TO
   WET THUNDERSTORMS WILL BEGIN TO OCCUR BY EVENING. STORMS WILL MOVE
   TO THE NNE.
   
   ..HURLBUT.. 09/14/2009
   
   ...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 141857
   
   DAY 2 FIRE WEATHER OUTLOOK RESENT 1
   NWS STORM PREDICTION CENTER NORMAN OK
   0157 PM CDT MON SEP 14 2009
   
   VALID 151200Z - 161200Z
   
   ...NO CRITICAL AREAS...
   
   ...SYNOPSIS...
   ...RESENT PER REQUEST...
   
   AN UPPER TROUGH WILL SLOWLY WEAKEN AND DRIFT ESEWD INTO SRN UT.
   ALTHOUGH THUNDERSTORMS WILL AFFECT MUCH OF THE INTERMOUNTAIN
   WEST...GREATER MOISTURE WILL STREAM NWD FROM THE FOUR CORNERS REGION
   AHEAD OF THE LOW...WHILE MOISTURE WILL LINGER FROM PREVIOUS ACTIVITY
   AS WELL. THUNDERSTORMS ARE PRIMARILY EXPECTED TO BE WET. UPPER
   RIDGING WILL BRIEFLY BUILD BEHIND THIS...ALLOWING HOT AND DRY
   CONDITIONS TO RETURN TO MUCH OF THE WRN COASTAL STATES...THOUGH WITH
   SUBCRITICAL WINDS. MEANWHILE ANOTHER UPPER TROUGH WILL APPROACH THE
   PACIFIC NORTHWESTERN COAST. STRONGER WINDS AND ANY LIGHTNING
   ACTIVITY WITH THIS SYSTEM WILL REMAIN OFFSHORE.
   
   ..HURLBUT.. 09/14/2009
   
   ...PLEASE SEE WWW.SPC.NOAA.GOV/FIRE FOR GRAPHIC PRODUCT...
   
      

Fire Weather/Forecast Products/Home