FNUS76 KSEW 181510
FWSSEW

SPOT FORECAST FOR UPPER WEIR SWIFT...FT LEWIS FORESTRY
NATIONAL WEATHER SERVICE SEATTLE WA
810 AM PDT WED JUL 18 2012

FORECAST IS BASED ON IGNITION TIME OF 1300 PDT ON JULY 18.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE IN SEATTLE.

.DISCUSSION...A WELL-DEFINED MARINE LAYER WILL COVER THE BURN
AREA TODAY...LOWERING MIXING HEIGHTS BELOW JULY NORMALS AND
CAPPING THE MIXED LAYER WITH A STRONG INVERSION. MARINE CLOUDS
WILL HANG ON STUBBORNLY TODAY...WITH ONLY SOME SUN BREAKS EXPECTED
LATER THIS AFTERNOON. COOLER AND MORE HUMID CONDITIONS ARE
EXPECTED...COMPARED WITH TUESDAY AFTERNOON.

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

.TODAY...

SKY/WEATHER.........CLOUDY AT IGNITION TIME. REMAINING MOSTLY
                    CLOUDY THROUGH THE AFTERNOON WITH A FEW
                    SUN BREAKS AFTER 1500 PDT.
CWR.................0%.
MAX TEMPERATURE.....AROUND 72.
MIN HUMIDITY........59 PERCENT.
WIND (20 FT)........WEST-SOUTHWEST WINDS 3 TO 8 MPH.
MIXING HEIGHT.......PEAKING NEAR 2500 FT AGL THIS AFTERNOON.
TRANSPORT WINDS.....WEST-SOUTHWEST AROUND 8 MPH.
HAINES INDEX........HIGH-LEVEL...3 OR VERY LOW.
                    MID-LEVEL....4 OR LOW.

.TONIGHT...

WIND (20 FT)........WEST-SOUTHWEST WINDS 3 TO 8 MPH...BECOMING
                    LIGHT AFTER SUNSET.
MIXING HEIGHT.......FALLING TO 800 FT AGL AFTER SUNSET.
TRANSPORT WINDS.....WEST AROUND 9 MPH...BECOMING NORTHWEST
                    3 MPH AFTER SUNSET.

$$
FORECASTER...HANER
REQUESTED BY...DAN LEEPER
TYPE OF REQUEST...PRESCRIBED
.TAG 20120718.UPPER.01/SEW