Storm Prediction Center
Day 1 and Day 2 Fire Weather Outlooks

   ZCZC SPCFWDDY1 ALL
   FNUS21 KWNS 010804
   
   DAY 1 FIRE WEATHER OUTLOOK  
   NWS STORM PREDICTION CENTER NORMAN OK
   0304 AM CDT THU SEP 01 2005
   
   VALID 011200Z - 021200Z
   
   ...NO CRITICAL AREAS...
   
   ...SYNOPSIS...
   A WARMING TREND WILL COMMENCE ACROSS THE NRN ROCKIES INTO THE NRN
   HIGH PLAINS THIS PERIOD. A SLOW-MOVING UPPER LOW OVER SRN MANITOBA
   WILL TRANSLATE EWD INTO THE NRN GREAT LAKES THROUGH THE FORECAST
   PERIOD. IN THE WAKE OF THIS SYSTEM...MID-LEVEL RIDGE AMPLIFIES
   ACROSS THE NRN ROCKIES WITH WARMING MID-LEVEL TEMPERATURES NWD FROM
   THE CENTRAL ROCKIES TOWARD MT. AN UPSTREAM MID-LEVEL TROUGH WILL
   APPROACH THE PACIFIC NW/BRITISH COLUMBIA COAST THIS AFTERNOON INTO
   THIS EVENING.  MID-LEVEL RIDGING WILL REMAIN IN PLACE ACROSS THE SRN
   TIER OF THE U.S.
   
   LARGE-SCALE WINDS WILL REMAIN GENERALLY LIGHT ACROSS THE WRN CONUS
   TODAY. SURFACE RIDGE IN PLACE EARLY THIS MORNING FROM COASTAL WA
   SEWD INTO THE CENTRAL HIGH PLAINS WILL MOVE EWD TO EXTEND FROM ND
   SSEWD TO ERN KS BY 02/00Z. A THERMAL TROUGH WILL DEVELOP FROM THE
   LOWER CO VALLEY NNWWD THROUGH THE CENTRAL VALLEYS OF CA AND INTO THE
   COLUMBIA BASIN. A LARGE REGION OF RH VALUES AOB 20 PERCENT WILL
   DEVELOP DURING THE PEAK HEATING HOURS THIS AFTERNOON ACROSS THE
   INTERMOUNTAIN WEST...BUT WITH SURFACE WINDS GENERALLY 15 MPH OR
   LESS.  
   
   SURFACE COLD FRONT OVER ERN WI/IL EARLY THIS MORNING WILL PROGRESS
   EWD INTO THE CENTRAL GREAT LAKES BY AFTERNOON. STRONG GRADIENT FLOW
   SOUTH OF SRN MANITOBA LOW COMBINED WITH STEEP LOW-LEVEL LAPSE RATES
   WILL RESULT IN STRONG SURFACE WINDS WITH DAYTIME MIXING. SUSTAINED
   WLY TO NWLY SURFACE WINDS OF 20-30 MPH ARE LIKELY FROM THE ERN
   DAKOTAS EWD ACROSS THE UPPER MS VALLEY. AIR MASS BEHIND COLD FRONT
   IS ONLY MODERATELY DRY...YIELDING AFTERNOON RH VALUES GENERALLY
   BETWEEN 30-35 PERCENT THROUGHOUT THE UPPER MS VALLEY. CONDITIONS ARE
   NOT EXPECTED TO EXCEED CRITICAL LEVELS.
   
   ..BANACOS.. 09/01/2005
   
   ...PLEASE SEE WWW.SPC.NOAA.GOV/FIRE FOR GRAPHIC PRODUCT...
   
      

   ZCZC SPCFWDDY2 ALL
   FNUS22 KWNS 010807
   
   DAY 2 FIRE WEATHER OUTLOOK  
   NWS STORM PREDICTION CENTER NORMAN OK
   0307 AM CDT THU SEP 01 2005
   
   VALID 021200Z - 031200Z
   
   ...NO CRITICAL AREAS...
   
   ...SYNOPSIS...
   DURING THE DAY 2 PERIOD...UPPER FLOW PATTERN IS EXPECTED TO AMPLIFY
   ACROSS THE CENTRAL/NRN INTERMOUNTAIN WEST. THERMAL RIDGE AT 700MB
   /+14C/ WILL EXPAND NWD FROM THE FOUR CORNERS REGION INTO MT. BROAD
   TROUGH WILL AMPLIFY OFF THE PAC NW COAST...WITH INCREASING SWLY
   MID-LEVEL FLOW ACROSS THE PAC NW STATES. SYNOPTIC PATTERN SHOULD
   INDUCE A MARINE PUSH INTO THE CASCADES OF WA/ORE WITH THERMAL SFC
   TROUGH SHIFTING EWD TO SWRN MT SWWD INTO THE WRN GREAT BASIN. STRONG
   PRESSURE GRADIENT MAY ALLOW FOR LOCAL DOWNSLOPE WINDS OF 20-30 MPH
   ALONG THE ERN SLOPES OF THE CASCADES. ANTECEDENT BOUNDARY LAYER AIR
   MASS IS NOT PARTICULARLY HOT...AND MODEL SOUNDINGS SUGGEST RH VALUES
   WILL REMAIN GENERALLY ABOVE 20 PERCENT ALONG THE ERN SLOPES OF THE
   CASCADES INTO THE COLUMBIA BASIN.
   
   ...NRN ROCKIES SWD INTO NRN GREAT BASIN...
   
   DOWNSTREAM OF UPPER TROUGH AXIS OFF THE PAC NW COAST...500MB FLOW
   WILL GRADUALLY INCREASE TO 25-30KT ACROSS THE NRN GREAT BASIN AND
   35-45 KT ACROSS ID INTO WRN/CENTRAL MT. WITH AFTERNOON
   HEATING/MIXING...AREAS OF 15-25 MPH SURFACE WINDS ARE POSSIBLE
   ACROSS WRN MT/SRN ID SWD INTO NRN/CENTRAL NV. WITH RH MINIMUMS AS
   LOW AS 10 PERCENT IN NV AND 15-20 PERCENT IN THE SNAKE RIVER VALLEY
   OF ID NEWD INTO WRN MT...REGION WILL NEED TO BE MONITORED FOR
   MARGINAL WIND-DRIVEN FIRE WEATHER THREAT. HIGH TEMPERATURES
   WILL RANGE FROM THE LOW TO MID 80S ACROSS WRN MT TO THE UPPER 80S TO
   LOWER 90S ACROSS LOWER ELEVATION AREAS OF SRN ID AND THE NRN GREAT
   BASIN.
   
   ..BANACOS.. 09/01/2005
   
   ...PLEASE SEE WWW.SPC.NOAA.GOV/FIRE FOR GRAPHIC PRODUCT...
   
      

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