FNUS76 KPQR 052316 FWSPQR SPOT FORECAST FOR SCOTT MOUNTAIN FIRE...USFS WNF NATIONAL WEATHER SERVICE PORTLAND OR 416 PM PDT SUN SEP 5 2010 FORECAST IS BASED ON REQUEST TIME OF 1422 PDT ON SEPTEMBER 05. IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER SERVICE. .DISCUSSION...WEAK HIGH PRESSURE IS BUILDING INTO CENTRAL AND SOUTHERN OREGON THIS AFTERNOON AND EVENING...WHICH WILL LEAD TO A CALM AND CHILLY NIGHT FOR THE FIRE AREA. A WARM FRONT WILL MOVE ONSHORE INTO WASHINGTON AND NORTHERN OREGON MONDAY...BUT SHOULD NOT HAVE MUCH AFFECT ON THE FIRE OTHER THAN TO BRING SOME HIGH CLOUDS AND WARM UP THE TEMPERATURES A FEW DEGREES VERSUS SUNDAY. MEANWHILE AN UPPER LEVEL LOW OVER THE GULF OF ALASKA WILL DIVE SOUTHWARD...MOVING ONSHORE NEAR SOUTHERN OREGON TUESDAY NIGHT. THIS LOW WILL BRING A BETTER CHANCE FOR WETTING RAIN IN THE FIRE AREA TUESDAY NIGHT AND WEDNESDAY...BUT AT THIS POINT IT APPEARS WETTING RAIN WILL ONLY OCCUR WITHIN A NARROW AREA. THERE IS STILL A BIT OF UNCERTAINTY AS TO WHERE THIS BAND OF HEAVIER RAIN WOULD SET UP. NONETHELESS SCATTERED SHOWERS APPEAR LIKELY TUESDAY NIGHT AND WEDNESDAY...WITH UNSEASONABLY COOL TEMPERATURES AND WET SNOW POSSIBLY MIXING IN DOWN TO AROUND 4500-5000 FT ELEVATION. 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. .LABOR DAY (MONDAY)... SKY/WEATHER.........PARTLY SUNNY. CWR (%).............NEAR ZERO. MAX TEMPERATURE.....60-64 HIGHEST ELEVATIONS...68-72 LOWEST. MIN HUMIDITY........30-40 PERCENT. WIND (20 FT)........RIDGE-TOP - NORTH TO NORTHEAST 2-5 MPH IN THE MORNING THEN WEST TO NORTHWEST 5-10 MPH. AFTERNOON GUSTS 15-20 MPH EXPOSED LOCATIONS. SLOPE/VALLEY - LIGHT WIND THROUGH THE MORNING THEN UP-SLOPE OR UP-VALLEY 3 TO 8 MPH. AFTERNOON GUSTS TO 15 MPH EXPOSED OR PARTIALLY-SHELTERED AREAS. TRANSPORT WIND......NORTHEAST 4-8 MPH...BECOMING WEST TO NORTHWEST IN THE AFTERNOON. MID-LEVEL HAINES....4 (LOW). TIME (PDT) 10 AM NOON 2 PM 4 PM 6 PM TEMP............48-55 54-60 58-66 62-70 56-66 RH..............55-70 40-55 32-42 30-40 32-42 20 FT WIND......N-NE 2-4 N 3-6 NW 4-8 NW 5-10 NW 4-8 MAX GUST..... 8 12 15 18 15 ***FORECAST WIND IS FOR RIDGE-TOPS. EXPECT UP-SLOPE CONDITIONS ELSEWHERE. USE THE APPROPRIATE WIND REDUCTION FACTOR FOR THE AREA OF CONCERN.*** .MONDAY NIGHT... SKY/WEATHER.........INCREASING CLOUDS. A SLIGHT CHANCE OF SHOWERS LATE. CWR (%).............NEAR ZERO. MIN TEMPERATURE.....36-44. MAX HUMIDITY........90-100 PERCENT. WIND (20 FT)........DRAINAGE/DOWNSLOPE 0-3 MPH. TRANSPORT WIND......WEST TO NORTHWEST 4-8 MPH...BECOMING SOUTH TO SOUTHWEST 2-5 MPH OVERNIGHT. HAINES INDEX(MID)...2 (VERY LOW). .TUESDAY... SKY/WEATHER.........MOSTLY CLOUDY. SHOWERS BECOMING LIKELY. CWR (%).............30 PERCENT. MAX TEMPERATURE.....MID 50S HIGHEST ELEVATIONS...MID 60S LOWEST. MIN HUMIDITY........65-75 PERCENT. WIND (20 FT)........SOUTHEAST 0-2 MPH...BECOMING WEST TO NORTHWEST 3-6 MPH IN THE AFTERNOON. RIDGETOP GUSTS 10-15 MPH AFTER 1500. TRANSPORT WIND......SOUTHWEST 2-5 MPH...INCREASING TO 6-12 MPH DURING THE AFTERNOON. HAINES INDEX(MID)...2 (VERY LOW). .EXTENDED... .WEDNESDAY...MOSTLY CLOUDY WITH SHOWERS LIKELY. WET SNOW POSSIBLE DOWN TO 4500 FT ELEVATION. LOWS IN THE 30S AND LOWER 40S. HIGHS IN THE MID 40S TO MID 50S. MINIMUM RH 65 TO 80 PERCENT. LIGHT WIND EARLY...BECOMING NORTHWEST WIND 5 TO 10 MPH WITH RIDGETOP GUSTS TO 20 MPH DEVELOPING IN THE AFTERNOON. .THURSDAY...MOSTLY CLOUDY. CHANCE OF SHOWERS. LOWS IN THE MID 30S TO MID 40S. HIGHS IN THE 50S AND LOWER 60S. MINIMUM RH 50 TO 65 PERCENT. NORTHWEST WIND 5 TO 15 MPH. .FRIDAY...MOSTLY CLOUDY. SLIGHT CHANCE OF SHOWERS. LOWS IN THE UPPER 30S AND 40S. HIGHS IN THE UPPER 50S AND 60S. MINIMUM RH 40 TO 55 PERCENT. WEST TO NORTHWEST WIND 5 TO 15 MPH. $$ FORECASTER...WEAGLE REQUESTED BY...HEIDI GILLESPIE REASON FOR REQUEST...WILDFIRE .TAG 20100905.SCOTT.01/PQR