FNUS76 KPQR 062315 FWSPQR SPOT FORECAST FOR SCOTT MOUNTAIN FIRE...USFS WNF NATIONAL WEATHER SERVICE PORTLAND OR 415 PM PDT MON SEP 6 2010 FORECAST IS BASED ON REQUEST TIME OF 1522 PDT ON SEPTEMBER 06. IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER SERVICE. .DISCUSSION...WEAK HIGH PRESSURE OVER OREGON TODAY IS SLOWLY GIVING WAY TO A FRONTAL SYSTEM WHICH IS PUSHING SOUTHWARD ACROSS WASHINGTON. A COLD FRONT WILL EVENTUALLY MOVE THROUGH OREGON TONIGHT AND TUESDAY...AS YET ANOTHER COLD UPPER LEVEL LOW MOVES SOUTHWARD FROM THE GULF OF ALASKA. THIS UPPER LOW WILL SETTLE OVER THE PACIFIC NORTHWEST TUESDAY AND WEDNESDAY...BRINGING AUTUMN-LIKE CONDITIONS AND THE POSSIBILITY OF ANOTHER ROUND OF WETTING RAIN FOR THE FIRE AREA. AS TEMPERATURES COOL DRAMATICALLY...WET SNOW WILL BECOME A POSSIBILITY DOWN TO AROUND 4500-5000 FT ELEVATION LATE TUESDAY THROUGH WEDNESDAY. THIS SYSTEM WILL EXIT EASTWARD THURSDAY... YIELDING A GRADUAL TREND TOWARD DRIER AND WARMER WEATHER FOR THE END OF THE WEEK...BUT TEMPERATURES WILL STILL STRUGGLE TO REACH NORMAL LEVELS FOR EARLY SEPTEMBER. ON AVERAGE...IT APPEARS THE BEST FORECAST FOR THE FIRE AREA WOULD BE FOR AROUND ONE QUARTER INCH COMBINED RAINFALL TUESDAY THROUGH WEDNESDAY. RIDGETOPS WILL HAVE THE BEST CHANCE OF RECEIVING ONE QUARTER INCH OR MORE. CHANCE OF WETTING RAIN (CWR) 0.25 INCHES OR GREATER. FORECAST WINDS ARE 10 MINUTE AVERAGES 20 FT ABOVE VEGETATION. THUNDERSTORMS IMPLY GUSTY AND ERRATIC WINDS. .TUESDAY... SKY/WEATHER.........MOSTLY CLOUDY WITH SHOWERS BECOMING LIKELY. CWR (%).............30 PERCENT. MAX TEMPERATURE.....52-56 HIGHEST ELEVATIONS...61-65 LOWEST. MIN HUMIDITY........45-55 PERCENT VALLEYS...55-65 PERCENT RIDGES. WIND (20 FT)........LIGHT WIND EARLY...BECOMING WEST TO SOUTHWEST 3-6 MPH IN THE AFTERNOON. TRANSPORT WIND......SOUTHWEST 3-6 MPH...INCREASING TO 10-20 MPH DURING THE AFTERNOON. MID-LEVEL HAINES....2 (VERY LOW). TIME (PDT) 10 AM NOON 2 PM 4 PM 6 PM TEMP............46-52 52-58 54-62 50-58 46-53 RH (%)..........65-80 55-65 50-60 65-75 80-90 20 FT WIND......VRBL 0-3 S-SW 1-3 S-SW 3-6 W-SW 2-4 W 1-4 MAX GUST..... 5 7 10 8 8 ***FORECAST WIND IS FOR RIDGE-TOPS. EXPECT UP-SLOPE CONDITIONS ELSEWHERE. USE THE APPROPRIATE WIND REDUCTION FACTOR FOR THE AREA OF CONCERN.*** .TUESDAY NIGHT... SKY/WEATHER.........MOSTLY CLOUDY. RAIN SHOWERS LIKELY...POSSIBLY MIXING WITH WET SNOW DOWN TO 4500 FT ELEVATION. MINOR ACCUMULATIONS POSSIBLE ON HIGHEST RIDGES. CWR (%).............30 PERCENT. MIN TEMPERATURE.....34-38...EXCEPT 30-34 RIDGES. MAX HUMIDITY........NEAR 100 PERCENT. WIND (20 FT)........WEST 2-5 MPH...DIMINISHING OVERNIGHT. TRANSPORT WIND......SOUTHWEST 10-20 MPH...EASING WEST TO SOUTHWEST 4-8 MPH OVERNIGHT. MID-LEVEL HAINES....2 (VERY LOW). .WEDNESDAY... SKY/WEATHER.........MOSTLY CLOUDY. SCATTERED SHOWERS...POSSIBLY MIXING WITH WET SNOW DOWN TO 4500 FT ELEVATION. MINOR ACCUMULATIONS POSSIBLE ON HIGHEST RIDGES. CWR (%).............20 PERCENT. (50 PERCENT COMBINED TUE-WED) MAX TEMPERATURE.....MID 40S HIGHEST ELEVATIONS...MID 50S LOWEST. MIN HUMIDITY........80-90 PERCENT RIDGES...65-75 PERCENT VALLEYS. WIND (20 FT)........LIGHT WIND EARLY...INCREASING NORTHWEST 5-10 MPH WITH RIDGETOP GUSTS 20-25 MPH DEVELOPING BY LATE AFTERNOON. TRANSPORT WIND......WEST TO NORTHWEST 3-6 MPH...INCREASING NORTH TO NORTHWEST 8-15 MPH BY AFTERNOON. MID-LEVEL HAINES....3 (VERY LOW). .EXTENDED... .THURSDAY...MOSTLY CLOUDY WITH A FEW LINGERING SHOWERS EARLY...THEN SOME PARTIAL CLEARING IN THE AFTERNOON. LOWS IN THE MID 30S TO LOWER 40S. HIGHS IN THE 50S AND LOWER 60S. MINIMUM RH 50 TO 65 PERCENT. NORTHWEST WIND 5 TO 15 MPH. .FRIDAY AND SATURDAY...PARTLY TO MOSTLY CLOUDY. LOWS IN THE UPPER 30S TO MID 40S. HIGHS MAINLY IN THE 60S. MINIMUM RH 35 TO 45 PERCENT. WEST TO NORTHWEST WIND 5 TO 15 MPH...STRONGEST EACH AFTERNOON. $$ FORECASTER...WEAGLE REQUESTED BY...BRENDA HALLMARK REASON FOR REQUEST...WILDFIRE .TAG 20100906.SCOTT.01/PQR