FNUS76 KSEW 311548
FWSSEW

SPOT FORECAST FOR TA -14 PRIAIRIE...FT LEWIS FORESTRY
NATIONAL WEATHER SERVICE SEATTLE WA
848 AM PDT MON AUG 31 2009

FORECAST IS BASED ON IGNITION TIME OF 1100 PDT ON AUGUST 31.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE IN SEATTLE.

.DISCUSSION...WEAK ONSHORE FLOW TODAY AND TONIGHT WILL MAINTAIN A
SHALLOW MARINE LAYER TO ABOUT 2000 FEET MSL. CLOUDS AND LIGHT FOG
ASSOCIATED WITH THE MARINE LAYER SHOULD BE BURNING OFF QUICKLY
AROUND IGNITION TIME WITH A SUNNY AFTERNOON EXPECTED. CLOUDS AND
FOG SHOULD RE-FORM LATE TONIGHT.

 FORECAST FOR 20 FOOT WIND SPEED (VALLEYS AND RIDGE TOPS) ARE 10
 MINUTE AVERAGES REFLECTING RAWS WINDS.

.TODAY...

SKY/WEATHER.........CLOUDS AND LIGHT FOG QUICKLY BURNING OFF
                    AROUND IGNITION TIME. SUNNY THIS AFTERNOON.
CWR.................0%.
MAX TEMPERATURE.....AROUND 77.
MIN HUMIDITY........44 PERCENT.
WIND (20 FT)........NORTH WINDS 3 TO 7 MPH...STRONGEST LATE IN
                    THE AFTERNOON.
MIXING HEIGHT.......1500 FT AGL AT IGNITION TIME...INCREASING TO
                    4000 FT AGL THIS AFTERNOON.
TRANSPORT WINDS.....NORTH AROUND 7 MPH.
HAINES INDEX........MID-LEVEL....4 OR LOW.
                    HIGH-LEVEL...2 OR VERY LOW.

.TONIGHT...

SKY/WEATHER.........MOSTLY CLEAR THIS EVENING. LOW CLOUDS AND
                    AREAS OF FOG RE-FORMING OVERNIGHT.
CWR.................0%.
WIND (20 FT)........NORTH WINDS 6 TO 7 MPH EARLY THIS EVENING...
                    THEN BECOMING NEARLY CALM AFTER SUNSET.
MIXING HEIGHT.......4000 FT AGL DECREASING TO 700 FT AGL LATE IN
                    THE EVENING.
TRANSPORT WINDS.....NORTH AROUND 6 MPH THIS EVENING...BECOMING
                    SOUTHWEST 3 MPH OVERNIGHT.
HAINES INDEX........MID-LEVEL....4 OR LOW.
                    HIGH-LEVEL...2 OR VERY LOW.

$$
FORECASTER...HANER
REQUESTED BY...DAN LEEPER
TYPE OF REQUEST...PRESCRIBED
.TAG 20090831.TA14P.01/SEW