FNUS76 KSEW 131437
FWSSEW

SPOT FORECAST FOR TA-6 PINE C...FT LEWIS FORESTRY
NATIONAL WEATHER SERVICE SEATTLE WA
737 AM PDT FRI JUL 13 2012

FORECAST IS BASED ON IGNITION TIME OF 1130 PDT ON JULY 13.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE IN SEATTLE.

...LATE AFTERNOON AND EVENING THUNDERSTORMS POSSIBLE IN THE
VICINITY OF THE BURN AREA...

.DISCUSSION...AN UPPER LEVEL LOW PRESSURE CENTER WAS CENTERED
DIRECTLY OVER WESTERN WASHINGTON THIS MORNING. IT WILL DRIFT SOUTH
THIS AFTERNOON. PROXIMITY OF THE LOW WILL LEAD TO THUNDERSTORM
DEVELOPMENT OVER THE CASCADES THIS AFTERNOON...THE STEERING FLOW
WILL LIKELY MOVE THUNDERSTORMS INTO THE BURN AREA AROUND EARLY-MID
EVENING. OTHERWISE...LOW-HANGING MARINE CLOUDS WILL BURN OFF
AROUND IGNITION TIME...BUT MID-LEVEL THUNDERSTORM DEBRIS CLOUDS
WILL MAINTAIN AT LEAST PARTLY CLOUDY AFTERNOON SKIES.

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

.TODAY...

SKY/WEATHER.........LOW CLOUDS AND FOG THIS MORNING...THEN BECOMING
                    PARTLY CLOUDY THIS AFTERNOON. SCATTERED LATE
                    AFTERNOON AND EVENING THUNDERSTORMS IN THE
                    VICINITY OF THE BURN AREA.
CWR.................LESS THAN 10%.
MAX TEMPERATURE.....AROUND 77.
MIN HUMIDITY........52 PERCENT.
WIND (20 FT)........SOUTHWEST WINDS 4 TO 8 MPH AROUND IGNITION
                    TIME...BECOMING NORTHWEST 4 TO 8 MPH AFTER
                    1400 PDT.
MIXING HEIGHT.......1600 FT AGL AT IGNITION TIME...PEAKING NEAR
                    3800 FT AGL THIS AFTERNOON.
TRANSPORT WINDS.....NORTH WINDS 4 TO 8 MPH.
HAINES INDEX........HIGH-LEVEL...4 OR LOW.
                    MID-LEVEL....4 OR LOW.

.TONIGHT...

WIND (20 FT)........NORTHWEST WINDS 5 TO 8 MPH THIS EVENING...
                    BECOMING SOUTHWEST 1 TO 3 MPH AFTER SUNSET.
                    ERRATIC AND GUSTY WINDS NEAR THUNDERSTORMS.
MIXING HEIGHT.......3800 FT AGL DECREASING TO 700 FT AGL AFTER
                    SUNSET.
TRANSPORT WINDS.....NORTHWEST AROUND 5 MPH...BECOMING LIGHT AFTER
                    SUNSET.

$$
FORECASTER...HANER
REQUESTED BY...DAN LEEPER
TYPE OF REQUEST...PRESCRIBED
.TAG 20120713.TA6PI.01/SEW