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 220853
   
   DAY 1 FIRE WEATHER OUTLOOK  
   NWS STORM PREDICTION CENTER NORMAN OK
   0353 AM CDT SUN JUL 22 2007
   
   VALID 221200Z - 231200Z
   
   ...NO CRITICAL AREAS...
   
   ...SYNOPSIS...
   UPPER RIDGE WILL REMAIN THE DOMINANT FEATURE FROM THE WEST COAST TO
   THE MISSISSIPPI VALLEY TODAY...WITH HOT/DRY CONDITIONS 
   PERSISTING FROM THE SOUTHWEST STATES TO THE NORTHERN PLAINS. IN THE
   EAST...CLOSED/CUT-OFF UPPER LOW IS FORECAST TO REMAIN
   QUASI-STATIONARY OVER THE CENTRAL APPALACHIANS/MID ATLANTIC STATES.
   
   ...CENTRAL/EASTERN NV AND WESTERN UT INTO CENTRAL/SOUTHERN ID AND
   SOUTHWEST MT/WESTERN WY...
   AS UPPER RIDGE CONTINUES TO DOMINATE THE WESTERN STATES...HOT AND
   DRY CONDITIONS WILL PREVAIL ACROSS THE GREAT BASIN AND ADJACENT
   PORTIONS OF THE INTERMOUNTAIN REGION. WINDS SPEEDS SHOULD BE LIGHTER
   IN COMPARISON TO SATURDAY...WITH LOCAL CIRCULATIONS/TERRAIN-DRIVEN
   REGIMES DOMINANT TODAY. EVEN THOUGH BROAD SCALE WINDS WILL BE
   LIGHT...THE HOT/DRY NATURE OF THE AIRMASS AND STEEP LAPSE RATE
   ENVIRONMENT WITH HIGH HAINES INDICES WILL SUPPORT PLUME DOMINATED
   FIRES...WITH POTENTIAL FOR LARGE/FAST FIRE GROWTH OF EXISTING FIRES
   DURING THE AFTERNOON.
   
   ..GUYER.. 07/22/2007
   
   ...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 221003
   
   DAY 2 FIRE WEATHER OUTLOOK  
   NWS STORM PREDICTION CENTER NORMAN OK
   0503 AM CDT SUN JUL 22 2007
   
   VALID 231200Z - 241200Z
   
   ...CRITICAL FIRE WEATHER AREA FOR FAR NORTHEAST NV/NORTHERN UT INTO
   CENTRAL/SOUTHERN ID AND SOUTHWEST MT/WESTERN WY FOR DRY
   THUNDERSTORMS...
   ...CRITICAL FIRE WEATHER AREA FOR PORTIONS OF CENTRAL/EASTERN ORE
   AND NORTHEAST CA FOR DRY THUNDERSTORMS...
   
   ...SYNOPSIS...
   RELATIVELY LITTLE FLUCTUATION IS ANTICIPATED ON THE LARGE SCALE INTO
   MONDAY. EXPANSIVE UPPER RIDGE WILL REMAIN DOMINANT FROM THE
   SOUTHWEST STATES INTO THE NORTHERN PLAINS...WHILE PERSISTENT
   CLOSED/CUT-OFF UPPER LOW REMAINS OVER THE MID ATLANTIC STATES. ON
   THE NORTHWEST PERIPHERY OF THE WESTERN STATES RIDGE...A SHORTWAVE
   TROUGH IS FORECAST TO CROSS THE PACIFIC NORTHWEST ON MONDAY. THIS
   FEATURE...ALONG WITH A NORTHWARD TRANSITION OF MONSOONAL
   MOISTURE...WILL LEAD TO INCREASING THUNDERSTORM COVERAGE ACROSS
   PORTIONS OF THE PACIFIC NORTHWEST AND NORTHERN INTERMOUNTAIN REGION
   MONDAY AFTERNOON/EVENING.
   
   ...CRITICAL FIRE WEATHER AREA - FAR NORTHEAST NV/NORTHERN UT INTO
   CENTRAL/SOUTHERN ID AND SOUTHWEST MT/WESTERN WY FOR DRY
   THUNDERSTORMS...
   
   PRIMARY CONDITIONS: DRY THUNDERSTORMS AND HOT/DRY CONDITIONS
   
   APPROACHING UPSTREAM SHORTWAVE TROUGH AND INCREASING MID LEVEL
   MOISTURE FROM THE SOUTH IS EXPECTED TO LEAD TO ISOLATED TO SCATTERED
   THUNDERSTORMS MONDAY AFTERNOON/EVENING FROM THE EASTERN GREAT BASIN
   INTO THE NORTHERN INTERMOUNTAIN REGION/CONTINENTAL DIVIDE VICINITY.
   GIVEN A HOT/WELL-MIXED DEEP BOUNDARY LAYER...AN APPRECIABLE PORTION
   OF THESE THUNDERSTORMS WILL BE DRY IN NATURE...WITH LIMITED RAINFALL
   AND NEW FIRE STARTS LIKELY GIVEN HIGH LIGHTNING IGNITION
   EFFICIENCIES. IMPACTS ON ONGOING FIRES MAY BE CONSIDERABLE AS
   WELL...AS THUNDERSTORM DOWNDRAFTS/CONVECTIVE OUTFLOWS MAY HAMPER
   FIRE CONTROL EFFORTS OF EXISTING FIRES VIA STRONG/GUSTY AND ERRATIC
   WINDS.
   
   ...CRITICAL FIRE WEATHER AREA - PORTIONS OF CENTRAL/EASTERN ORE AND
   NORTHEAST CA FOR DRY THUNDERSTORMS...
   
   PRIMARY CONDITIONS: DRY THUNDERSTORMS AND HOT/DRY CONDITIONS
   
   WITH APPROACHING SHORTWAVE TROUGH AND SUFFICIENT MID LEVEL
   MOISTURE...A RELATIVELY MORE MARGINAL POTENTIAL/COVERAGE FOR DRY
   THUNDERSTORMS WILL EXIST EAST OF THE CASCADES ACROSS PORTIONS OF
   CENTRAL/EASTERN ORE AND NORTHEAST CA MONDAY AFTERNOON/EVENING.
   ALTHOUGH STORMS MAY TEND TO BE ISOLATED IN NATURE...NEW FIRE
   IGNITIONS ARE A DISTINCT POSSIBILITY WITH LIMITED POTENTIAL FOR
   WETTING RAINS.
   
   ...MUCH OF NV/EASTERN ORE/SOUTHERN ID...
   OUTSIDE OF DRY THUNDERSTORM POTENTIAL...HOT AND DRY CONDITIONS WILL
   REMAIN ACROSS MUCH OF NV/EASTERN ORE/SOUTHERN ID. BROAD SCALE WINDS
   WILL BE LIGHT...WITH LOCAL/TERRAIN-DRIVEN REGIMES DOMINANT. GIVEN
   GENERALLY WEAK WINDS...THE HOT TEMPERATURES/STEEP LAPSE RATE
   ENVIRONMENT WITH HIGH HAINES INDICES WILL PROMOTE PLUME DOMINATED
   FIRES...WITH POTENTIAL FOR LARGE FIRE GROWTH OF EXISTING FIRES
   DURING THE AFTERNOON.
   
   ..GUYER.. 07/22/2007
   
   ...PLEASE SEE WWW.SPC.NOAA.GOV/FIRE FOR GRAPHIC PRODUCT...
   
      

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