FNUS76 KSEW 211539 FWSSEW SPOT FORECAST FOR SCOUTS OUT...FT LEWIS FORESTRY NATIONAL WEATHER SERVICE SEATTLE WA 839 AM PDT MON SEP 21 2009 FORECAST IS BASED ON IGNITION TIME OF 1100 PDT ON SEPTEMBER 21. IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER SERVICE IN SEATTLE. .DISCUSSION...A BUILDING UPPER LEVEL RIDGE AND DEVELOPING LOW LEVEL EASTERLY FLOW WILL GIVE VERY DRY WEATHER AND A WARMING TREND TO THE AREA THROUGH MID WEEK. TEMPERATURES WILL AVERAGE WELL ABOVE NORMAL THROUGH WEDNESDAY. A WEAK DISTURBANCE WILL PASS BY TO NORTH WEDNESDAY NIGHT AND THURSDAY. AS THE DISTURBANCE PASSES...MARINE CLOUDS WILL PUSH INLAND AND LOWLAND TEMPERATURES WILL RETURN TO NEAR NORMAL. THE UPPER LEVEL RIDGE WILL REBUILD FRIDAY INTO NEXT WEEKEND BUT THE LOW LEVEL FLOW WILL REMAIN ONSHORE KEEPING DAYTIME HIGHS JUST A FEW DEGREES ABOVE NORMAL. NOTE...GRAY ARMY AIRFIELD AND OLYMPIA AIRPORT OBSERVATIONS USED IN MAKING THIS FORECAST. FORECAST FOR 20 FOOT WIND SPEED (VALLEYS AND RIDGE TOPS) ARE 10 MINUTE AVERAGES REFLECTING RAWS WINDS. .TODAY... SKY/WEATHER.........SUNNY. MAX TEMPERATURE.....58-62 DEGREES AT IGNITION WITH A MAX TEMP OF 75-78 DEGREES. MIN HUMIDITY........65-68 PERCENT AT IGNITION WITH A MIN RH OF 30-34 PERCENT. WIND (20 FT)........ SLOPE/VALLEY.......LIGHT AND VARIABLE WINDS 2 TO4 MPH AT IGNITION BECOMING NORTHEAST 4 TO 7 MPH THIS AFTERNOON. MIXING HEIGHT.......100 FT AGL INCREASING TO 2700 FT AGL LATE IN THE MORNING. TRANSPORT WINDS.....NORTHEAST 4 7 MPH. HAINES MID-LEVEL....5 OR MODERATE. HIGH-LEVEL...4 OR LOW. .TONIGHT... MIXING HEIGHT.......2700 FT AGL DECREASING TO 0 FT AGL LATE IN THE EVENING. TRANSPORT WINDS.....NORTHEAST 5 TO 8 MPH. $$ FORECASTER...PRANGE REQUESTED BY...DAN LEEPER TYPE OF REQUEST...PRESCRIBED .TAG 20090921.SCOUT.01/SEW