FNUS76 KSEW 121535
FWSSEW

SPOT FORECAST FOR TA 6 PRAIRIE SOUTHEAST...FORT LEWIS-MCCHORD
NATIONAL WEATHER SERVICE SEATTLE WA
835 AM PDT MON AUG 12 2013

FORECAST IS BASED ON IGNITION TIME OF 1200 PDT ON AUGUST 12.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE IN SEATTLE.

.DISCUSSION...UPPER LEVEL LOW PRESSURE OFF THE WASHINGTON COAST
WILL TRACK NORTH INTO VANCOUVER ISLAND THIS EVENING. A STABLE
MARINE LAYER WILL INHIBIT THUNDERSTORMS ACROSS THE LOWLANDS TODAY.
HOWEVER...A FEW ISOLATED THUNDERSTORMS COULD DEVELOP NEAR THE
CREST OF THE CASCADES AND OLYMPICS THIS AFTERNOON. HIGHER PRESSURE
ALOFT WILL BUILD IN FROM THE WEST THROUGH WEDNESDAY...SUPPORTING
A SLIGHT WARMING AND DRYING TREND ALONG WITH MORE SUNSHINE.
STRONGER ONSHORE FLOW AND SOME LIGHT SHOWERS MAY DEVELOP OVER THE
AREA BY THURSDAY INTO THE WEEKEND.

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

.TODAY...

SKY/WEATHER.........MOSTLY CLOUDY. SUNBREAKS LATE IN THE DAY.
CWR.................LESS THAN 10%.
MAX TEMPERATURE.....AROUND 73.
MIN HUMIDITY........52 PERCENT.
WIND (20 FT)........
 SLOPE/VALLEY.......SOUTHWEST WINDS 3 TO 4 MPH SHIFTING TO THE WEST
                    3 TO 6 MPH IN THE AFTERNOON.
MIXING HEIGHT.......1200 FT AGL INCREASING TO 4000-4300 FT AGL LATE
                    IN THE MORNING.
TRANSPORT WINDS.....SOUTHWEST AROUND 5 MPH.

.TONIGHT...

SKY/WEATHER.........PARTLY CLOUDY...BECOMING MOSTLY CLOUDY
                    AFTER MIDNIGHT.
CWR.................LESS THAN 10%.
MIN TEMPERATURE.....AROUND 51.
MAX HUMIDITY........90 TO 100 PERCENT.
WIND (20 FT)........
 SLOPE/VALLEY.......WEST WINDS 3 TO 5 MPH.

$$
FORECASTER...MERCER
REQUESTED BY...DAVE CLOUSE
TYPE OF REQUEST...PRESCRIBED
.TAG 20130812.TA6PR.01/SEW