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 180853
   
   DAY 1 FIRE WEATHER OUTLOOK  
   NWS STORM PREDICTION CENTER NORMAN OK
   0353 AM CDT TUE SEP 18 2007
   
   VALID 181200Z - 191200Z
   
   ...NO CRITICAL AREAS...
   
   ...SYNOPSIS...
   AN UPPER TROUGH WILL DROP SOUTHWARD ALONG THE BRITISH COLUMBIA COAST
   TODAY...SUPPORTING THE DEVELOPMENT OF A CLOSED UPPER LOW OVER THE
   PACIFIC NORTHWEST BY WEDNESDAY MORNING. AS THIS LOW DEEPENS OVER
   WESTERN ORE/WA...WARM SOUTHWEST FLOW WILL COMMENCE OVER MUCH OF THE
   GREAT BASIN AND ROCKIES THIS AFTERNOON...BRINING WARM...DRY...AND
   BREEZY CONDITIONS TO THE GREAT BASIN.
   
   ELSEWHERE ACROSS THE NATION...ANOTHER DAY OF BREEZY/MOIST SLY WINDS
   SPREADS ACROSS THE PLAINS AHEAD OF A COLD FRONT MOVING INTO THE
   UPPER MIDWEST LATE THIS AFTERNOON. FARTHER EAST...SURFACE HIGH
   PRESSURE LOCATED OVER NEW ENGLAND WILL LEAD TO TRANQUIL FIRE WEATHER
   CONDITIONS.
   
   ...GREAT BASIN...
   MID LEVEL WINDS WILL TURN SOUTHWESTERLY AND INCREASE THROUGH THE DAY
   AS AN UPPER LOW DEEPENS OVER WESTERN ORE/WA TODAY AND TONIGHT. BY
   LATE THIS AFTERNOON SOUTH/SOUTHWESTLY SURFACE WINDS WILL INCREASE TO
   10 TO 20 MPH /GUSTING TO 25 MPH/ WHILE RH FALLS TO NEAR 10 PERCENT.
   ISOLATED LOCATIONS MAY EXPERIENCE LOCALIZED CRITICAL CONDITIONS FOR
   A SHORT PERIOD LATE IN THE AFTERNOON...BUT A WIDESPREAD CRITICAL
   FIRE WEATHER SITUATION IS NOT EXPECTED.
   
   ..BRIGHT.. 09/18/2007
   
   ...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 180854
   
   DAY 2 FIRE WEATHER OUTLOOK  
   NWS STORM PREDICTION CENTER NORMAN OK
   0354 AM CDT TUE SEP 18 2007
   
   VALID 191200Z - 201200Z
   
   ...CRITICAL FIRE WEATHER AREA FOR THE GREAT BASIN AND NORTHERN
   PORTIONS OF THE COLORADO RIVER VALLEY...
   
   ...SYNOPSIS...
   A STRONG UPPER LOW/TROUGH WILL CONTINUE TO DROP SWD ALONG THE WEST
   COAST WEDNESDAY...REACHING THE SACRAMENTO VALLEY BY THE END OF THE
   PERIOD. STRONG SOUTHWEST FLOW AHEAD OF THIS SYSTEM WILL BRING
   CRITICAL FIRE WEATHER CONDITIONS TO A LARGE PORTION OF THE
   INTERMOUNTAIN WEST. UPPER RIDGING WILL DEVELOP OVER THE MIDSECTION
   OF THE COUNTRY WHILE A SURFACE COLD FRONT PUSHES INTO THE GREAT
   LAKES REGION...TRAILING SOUTHWESTWARD AND STALLING OVER THE CENTRAL
   PLAINS. HIGH PRESSURE AT THE SURFACE AND ALOFT WILL KEEP LIGHT WINDS
   AND MODERATE RH OVER MOST OF THE EAST.
   
   ...CRITICAL FIRE WEATHER AREA - GREAT BASIN/NRN COLORADO RIVER
   VALLEY...
   
   PRIMARY CONDITIONS: LOW RH AND VERY WINDY
   
   AS THE UPPER LOW MOVES FROM SOUTHERN ORE INTO NORTHERN CA WEDNESDAY
   AFTERNOON...A STRONG MID/UPPER LEVEL JET WILL EXTEND FROM CENTRAL CA
   TO SOUTHWESTERN WY. WHILE SOME HIGH CLOUDINESS MAY ACCOMPANY THE
   SYSTEM...THE AIRMASS SHOULD BE SUFFICIENTLY DRY AND WARM FOR
   SUBSTANTIAL BOUNDARY LAYER MIXING AND DOWNWARD MOMENTUM TRANSFER.
   THE SURFACE AIRMASS WILL REMAIN VERY DRY WITH MINIMUM RH BETWEEN 12
   AND 18 PERCENT AS WINDS RANGE FROM 20 TO 30 MPH AND GUST TO 40 MPH.
   TEMPERATURES WILL BE WARM AND REACH THE MID 90S IN THE COLORADO
   RIVER VALLEY AND THE UPPER 70S IN CENTRAL/NORTHERN SECTIONS OF THE
   GREAT BASIN. AS SUNSET APPROACHES...A STRONG SURFACE COLD FRONT WILL
   APPROACH FROM THE NORTHWEST...BRINGING MUCH COOLER TEMPERATURES AND
   RAPIDLY MODERATING RH TO WESTERN SECTIONS OF THE GREAT BASIN.
   
   ...SOUTHWESTERN WY...
   SIMILAR WEATHER CONDITIONS ARE EXPECTED TO EXTEND INTO SOUTHWESTERN
   WY...ALTHOUGH SURFACE WINDS SHOULD REMAIN MOSTLY BELOW 20 MPH.
   LOCALIZED CRITICAL CONDITIONS ARE EXPECTED AS THE MINIMUM RH FALLS
   TO 15 PERCENT AND WINDS GUST TO 25 MPH WEDNESDAY AFTERNOON.
   
   ..BRIGHT.. 09/18/2007
   
   ...PLEASE SEE WWW.SPC.NOAA.GOV/FIRE FOR GRAPHIC PRODUCT...
   
      

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