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 080757
   
   DAY 1 FIRE WEATHER OUTLOOK  
   NWS STORM PREDICTION CENTER NORMAN OK
   0257 AM CDT SUN OCT 08 2006
   
   VALID 081200Z - 091200Z
   
   ...NO CRITICAL AREAS...
   
   ...SYNOPSIS...
   CLOSED UPPER-LEVEL LOWS OVER SRN CA AND SC WILL MOVE VERY SLOWLY
   EWD. A LARGE UPPER RIDGE ACROSS THE S-CNTRL CONUS NEWD INTO THE
   LOWER GREAT LAKES WILL DAMPEN AS WEAK HEIGHT FALLS SPREAD EWD AHEAD
   OF A SHORTWAVE TROUGH ROTATING NEWD FROM THE FAR NRN PLAINS. BEHIND
   THIS WAVE...ANOTHER IMPULSE IS FORECAST TO DROP S/SEWD INTO THE
   PACIFIC NW/NRN ROCKIES BY MONDAY MORNING. SURFACE HIGH PRESSURE WILL
   STRENGTHEN BEHIND THIS LATTER FEATURE ALONG THE SRN CANADIAN ROCKIES
   AND HELP MAINTAIN/INCREASE OFFSHORE FLOW ACROSS MUCH OF THE PACIFIC
   NW.
   
   ...PORTIONS OF NRN CA...
   MODEST DOWNSLOPE/OFFSHORE FLOW HAS DEVELOPED EARLY THIS MORNING
   ACROSS THE WRN SLOPES OF THE NRN SIERRAS AND COASTAL MTNS. THIS WILL
   SERVE TO MAINTAIN LOW-LEVEL DRYING TODAY ACROSS THE NRN SACRAMENTO
   VALLEY AND ADJACENT DOWNWIND LOCATIONS. WITH NEARLY FULL INSOLATION
   EXPECTED...TEMPERATURES SHOULD REACH THE 80S IN VALLEYS WITH 70S IN
   FOOTHILLS. DEW POINTS WILL LIKELY MIX INTO THE 20S TO MIDDLE 30S
   LEADING TO RH VALUES AROUND 10 TO 15 PERCENT BY LATE AFTERNOON.
   HOWEVER...WINDS ARE EXPECTED TO SLACKEN SOMEWHAT AND BE UNDER 20 MPH
   THIS AFTERNOON IN MOST LOCATIONS AS A WEAK THERMAL TROUGH DEVELOPS.
   SPEEDS SHOULD INCREASE AGAIN DURING THE EVENING/OVERNIGHT HOURS WITH
   A MODERATE SURFACE PRESSURE GRADIENT DEVELOPING. THIS COULD LEAD TO
   LOCALIZED CRITICAL CONDITIONS DURING THE EARLY EVENING...AND LIMITED
   RH RECOVERY OVERNIGHT.
   
   ..GRAMS.. 10/08/2006
   
   ...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 080921
   
   DAY 2 FIRE WEATHER OUTLOOK  
   NWS STORM PREDICTION CENTER NORMAN OK
   0421 AM CDT SUN OCT 08 2006
   
   VALID 091200Z - 101200Z
   
   ...CRITICAL FIRE WEATHER AREA FOR ERN WA SWWD INTO WRN ORE/EXTREME
   NRN CA...
   
   ...SYNOPSIS...
   SLOW-MOVING UPPER-LEVEL LOW OVER SRN CA IS FORECAST TO WEAKEN AND
   MOVE MORE RAPIDLY EWD REACHING THE SRN ROCKIES BY TUESDAY MORNING.
   MEANWHILE...A MID/UPPER-LEVEL SHORTWAVE TROUGH OVER THE PACIFIC
   NW/NRN ROCKIES SHOULD AMPLIFY AND BECOME A CLOSED LOW AROUND THE NRN
   GREAT BASIN REGION BY TUESDAY MORNING. A STRONG MID-LEVEL NELY SPEED
   MAX IS FORECAST TO DEVELOP FROM ERN WA SWWD INTO NRN CA. SURFACE LOW
   PRESSURE WILL STRENGTHEN TO THE S OF THIS FEATURE ACROSS CNTRL
   CA/SRN GREAT BASIN REGION. SURFACE HIGH PRESSURE WILL DROP SLOWLY
   SWD ALONG THE NRN ROCKIES/HIGH PLAINS LEADING TO A STRONG PRESSURE
   GRADIENT ACROSS MOST OF THE PACIFIC NW.
   
   ...CRITICAL FIRE WEATHER AREA - ERN WA SWWD INTO WRN ORE/EXTREME NRN
   CA...
   
   PRIMARY CONDITIONS: STRONG WINDS / LOW RH / LONG-TERM DRYNESS
   
   STRONG NELY WINDS WILL DEVELOP MONDAY IN CONJUCTION WITH
   STRENGTHENING MID-LEVEL FLOW AND AN INCREASE IN THE SURFACE PRESSURE
   GRADIENT. SUSTAINED SURFACE WINDS OF 20 TO 30 MPH APPEAR LIKELY OVER
   MUCH OF ERN/SRN WA SWWD ACROSS WRN ORE/FAR NRN CA. THE STRONGEST
   WINDS SHOULD OCCUR ON THE WRN SIDE OF THE CASCADES WITH GUSTS AROUND
   50 MPH POSSIBLE. THERE IS STILL SIGNIFICANT UNCERTAINTY IN MODEL
   FORECASTS WITH THE AMOUNT OF DRYING THAT WILL OCCUR. DOWNSLOPE
   WARMING SHOULD HELP COUNTERACT THE EFFECTS OF A COOLER UPSTREAM AIR
   MASS. TEMPERATURES SHOULD REACH THE 60S ACROSS THE COLUMBIA RIVER
   BASIN/GORGE TO AS HIGH AS THE MIDDLE 70S W OF THE CASCADES. IF DEW
   POINTS CAN FALL INTO THE MID TEENS AND 20S...RH VALUES WOULD DROP TO
   AROUND 15 TO 20 PERCENT. MODERATE TO STRONG DOWNSLOPE WINDS SHOULD
   CONTINUE OVERNIGHT W OF THE CASCADES/SISKIYOUS...SUPPORTING POOR RH
   RECOVERY.
   
   ..GRAMS.. 10/08/2006
   
   ...PLEASE SEE WWW.SPC.NOAA.GOV/FIRE FOR GRAPHIC PRODUCT...
   
      

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