Storm Prediction Center
Day 1 and Day 2 Fire Weather Outlooks

   ZCZC SPCFWDDY1 ALL
   FNUS21 KWNS 280756
   
   DAY 1 FIRE WEATHER OUTLOOK  
   NWS STORM PREDICTION CENTER NORMAN OK
   0256 AM CDT SUN AUG 28 2005
   
   VALID 281200Z - 291200Z
   
   ...CRITICAL FIRE WEATHER AREA FOR ERN AND CNTRL ORE/NERN CA/WRN
   ID/NW NV...
   
   ...SYNOPSIS...
   VIGOROUS UPPER TROUGH IS FORECAST TO MOVE INTO BC TODAY...WITH A
   VERY STRONG MID/UPPER LEVEL JET STREAK ALONG THE SRN PERIPHERY OF
   THE TROUGH. MID LEVEL WINDS WILL INCREASE TO AROUND 50 KT ACROSS
   ORE/WA BY TONIGHT...EVENTUALLY APPROACHING 80 KT WHEN THE MAIN JET
   MAX MOVES INTO THE PACIFIC NORTHWEST BY EARLY MON MORNING. A SFC
   COLD FRONT WILL MOVE ACROSS WRN PORTIONS OF WA/ORE TODAY...CAUSING A
   WIND SHIFT TO THE W/NW. AHEAD OF THE FRONT...STRONG S/SW WINDS WITH
   GUSTS ABOVE 30-35 MPH ARE POSSIBLE. CRITICAL FIRE WEATHER CONDITIONS
   ARE LIKELY DUE TO THE COMBINATION OF LOW RH VALUES AND STRONG WINDS.
   
   ...CRITICAL FIRE WEATHER AREA 1 - ERN AND CNTRL ORE/NERN CA/WRN
   ID/NW NV...
   
   PRIMARY CONDITIONS: SUSTAINED SFC WINDS OF 15-30 MPH WITH HIGHER
   GUSTS/MINIMUM RH VALUES BELOW 15 PERCENT/DRY FUELS/ABOVE NORMAL
   TEMPS
   
   SFC LOW PRESSURE WILL DEEPEN ACROSS ERN WA IN RESPONSE TO LARGE
   SCALE HEIGHT FALLS ASSOCIATED WITH APPROACHING TROUGH. AS SFC
   PRESSURE GRADIENT INCREASES AND DEEP MIXING COMMENCES WITHIN STEEP
   LAPSE RATE ENVIRONMENT...STRONGER MID LEVEL WINDS WILL BE
   TRANSPORTED TO THE SFC. SFC WINDS WILL INCREASE BY AFTN ACROSS
   CNTRL/ERN ORE AND NERN CA AHEAD OF THE FRONT...WITH THE STRONGEST
   WINDS ACROSS NW NV/ID DEVELOPING BETWEEN 00-03Z. MAX SFC TEMPS WILL
   RISE INTO THE 90S ACROSS ERN ORE/NWRN GREAT BASIN WITH LOWER 100S IN
   THE NRN CA VALLEYS. MEANWHILE...MINIMUM RH VALUES WILL FALL BETWEEN
   5-15 PERCENT. WITH NUMEROUS LARGE FIRES ACROSS THE OUTLOOK
   AREA...ANY INCREASE IN WIND OR CHANGE IN WIND DIRECTION WILL BE A
   FIRE WEATHER THREAT. LATEST FIRE DANGER CLASS OBSERVATIONS RANGE
   FROM HIGH TO EXTREME...WITH NO SIGNIFICANT PRECIPITATION EXPECTED
   TODAY.
   
   ..TAYLOR.. 08/28/2005
   
   ...PLEASE SEE WWW.SPC.NOAA.GOV/FIRE FOR GRAPHIC PRODUCT...
   
      

   ZCZC SPCFWDDY2 ALL
   FNUS22 KWNS 280957
   
   DAY 2 FIRE WEATHER OUTLOOK  
   NWS STORM PREDICTION CENTER NORMAN OK
   0457 AM CDT SUN AUG 28 2005
   
   VALID 291200Z - 301200Z
   
   ...CRITICAL FIRE WEATHER AREA FOR THE NRN SIERRA/GREAT BASIN/NRN AND
   CNTRL ROCKIES/NRN HIGH PLAINS...
   
   ...SYNOPSIS...
   COMBINATION OF STRONG WINDS AND LOW RH WILL CONTRIBUTE TO CRITICAL
   FIRE WEATHER CONDITIONS ACROSS A LARGE PORTION OF THE WEST. STRONG
   MID/UPPER LEVEL TROUGH AXIS WILL BE LOCATED ACROSS WRN WA/WRN ORE
   EARLY MONDAY MORNING...SHIFTING INTO CNTRL ALBERTA BY TUESDAY. SPEED
   MAX WILL ACCOMPANY THIS STORM SYSTEM WITH UPPER LEVEL WINDS
   INCREASING TO AROUND 70-80 KT OVER THE GREAT BASIN/NRN ROCKIES. MAIN
   SFC LOW WILL DEEPEN DURING THE DAYTIME HOURS WITH A COLD FRONT
   EXTENDING FROM WCNTRL MT/UPPER SNAKE RIVER PLAIN/WRN GREAT BASIN BY
   30/00Z. VERY STRONG SFC WINDS WILL DEVELOP AHEAD OF THE
   BOUNDARY...ALONG WITH WINDS SHIFTING FROM SW TO W TO NW IN THE
   VICINITY OF THE FRONT. IN ADDITION TO THE THREAT OF STRONG
   WINDS...ISOLD TO SCATTERED TSTMS WILL DEVELOP ACROSS ID/MT WITH THE
   THREAT OF DRY LIGHTNING.
   
   ...CRITICAL FIRE WEATHER AREA 1 - THE NRN SIERRA/GREAT BASIN/NRN AND
   CNTRL ROCKIES/NRN HIGH PLAINS...
   
   PRIMARY CONDITIONS: SUSTAINED SFC WINDS 20-35 MPH WITH HIGHER
   GUSTS/MINIMUM RH BELOW 15 PERCENT/LOW FUEL MOISTURE
   
   TEMPERATURES WILL BE MUCH COOLER BEHIND THE FRONT ACROSS WRN MT
   /GENERALLY IN THE 70S/ AND ASSOCIATED RH VALUES MAY BE MARGINAL FOR
   A CRITICAL FIRE WEATHER OUTLOOK. HOWEVER...VERY DRY FUELS AND STRONG
   WINDS MAY OFFSET THE HIGHER HUMIDITY. AHEAD OF THE
   FRONT...TEMPERATURES IN THE 80S/90S ARE FORECAST WITH MINIMUM RH
   VALUES FALLING BELOW 10 PERCENT IN SOME LOCATIONS. AS ON
   SUNDAY...HIGHER MOMEMTUM AIR AT MID LEVELS /30-35 KT/ WILL MIX DOWN
   TO THE SFC. WIDESPREAD GUSTY CONDITIONS WILL OCCUR WITH FREQUENT
   GUSTS OVER 30 MPH. LARGE SCALE ASCENT WILL ALSO INCREASE THE CHANCE
   FOR ISOLD/SCATTERED TSTMS...ESPECIALLY ACROSS THE HIGHER TERRAIN OF
   WRN MT/ID.
   
   ..TAYLOR.. 08/28/2005
   
   ...PLEASE SEE WWW.SPC.NOAA.GOV/FIRE FOR GRAPHIC PRODUCT...
   
      

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