FNUS76 KSEW 211501 FWSSEW SPOT FORECAST FOR RANGE 87...FT LEWIS FORESTRY NATIONAL WEATHER SERVICE SEATTLE WA 801 AM PDT WED JUL 21 2010 FORECAST IS BASED ON IGNITION TIME OF 1300 PDT ON JULY 21. IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER SERVICE IN SEATTLE. .DISCUSSION...A WEAK UPPER LEVEL TROUGH OVER WESTERN WASHINGTON WILL BEGIN TO MOVE EAST TODAY. THE MARINE LAYER STRATUS OVER THE AREA ONCE AGAIN THIS MORNING WILL BREAKOUT ABOUT THE SAME TIME AS YESTERDAY...OR ABOUT 1300. AFTERNOON TEMPERATURES WILL EVENTUALLY REACH THE MID 70S. A WEAK UPPER RIDGE WILL TRY TO DEVELOP ON WEDNESDAY...WEAKENING THE INFLUENCE OF THE RECENT STUBBORN MARINE LAYER AND GIVING MORE SUNSHINE...BUT THEN ONSHORE FLOW WILL INCREASE AGAIN ON THURSDAY. FORECAST FOR 20 FOOT WIND SPEED (VALLEYS AND RIDGE TOPS) ARE 10 MINUTE AVERAGES REFLECTING RAWS WINDS. .TODAY... SKY/WEATHER.........MOSTLY CLOUDY WITH PATCHY FOG THEN BECOMING SUNNY AROUND IGNITION TIME. CWR.................0%. TEMPERATURE.........63 AT IGNITION...MAX 78. MIN HUMIDITY..................74 PERCENT AT IGNITION...MIN 48 PERCENT. WIND (20 FT)........NORTHWEST WINDS 3 TO 7 MPH. MIXING HEIGHT.......INCREASING TO 4200 FT AGL THIS AFTERNOON... STABLE ABOVE TRANSPORT WINDS.....NORTHWEST 7 TO 8 MPH. HAINES INDEX........MID-LEVEL....5 OR MODERATE. HIGH-LEVEL...4 OR LOW. .TONIGHT... MIN TEMPERATURE.....54. MAX HUMIDITY........100 PERCENT. WIND (EYE LEVEL)....NORTHWEST WINDS 3 TO 5 MPH SHIFTING TO THE SOUTHWEST LATE IN THE EVENING. WIND (20 FT)........NORTHWEST WINDS 3 TO 5 MPH SHIFTING TO THE SOUTHWEST LATE IN THE EVENING. MIXING HEIGHT.......4200 FT AGL DECREASING TO 200 FT AGL LATE IN THE EVENING. TRANSPORT WINDS.....NORTHWEST AROUND 8 MPH SHIFTING TO THE SOUTHWEST 12 TO 14 MPH LATE IN THE EVENING. $$ FORECASTER...BOWER REQUESTED BY...DAN LEEPER TYPE OF REQUEST...PRESCRIBED .TAG 20100721.RANGE.01/SEW