Suppression Forecast
Issued by NWS Seattle/Tacoma, WA

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FNUS76 KSEW 031455
FWSSEW

SPOT FORECAST FOR TA 15...FORT LEWIS-MCCHORD
NATIONAL WEATHER SERVICE SEATTLE WA
755 AM PDT THU SEP 3 2015

FORECAST IS BASED ON IGNITION TIME OF 1200 PDT ON SEPTEMBER 03.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE IN SEATTLE.

.DISCUSSION...THE UPPER LEVEL LOW OVER SOUTHWEST BRITISH COLUMBIA
RESPONSIBLE FOR THIS PROLONGED EPISODE OF COOL AND WET WEATHER
WILL CONTINUE TO SLOWLY MOVE SOUTH THROUGH THE AREA TODAY BRINGING
MORE SHOWERS AND ISOLATED THUNDERSTORMS. IN ADDITION...SNOW LEVELS
ARE AROUND 5000 TO 6000 FT...WHICH MAY BRING SNOWFALL TO
ELEVATIONS ABOVE THAT. ONCE THE LOW REACHES SOUTHERN OREGON ON
FRIDAY CONDITIONS ARE EXPECTED TO START TO DRY OUT. SHORTWAVE
RIDGING IS EXPECTED TO BUILD OVER THE AREA SATURDAY...CONTINUING
THE DRY CONDITIONS AND WARMING TEMPERATURES TO NEAR OR SLIGHTLY
ABOVE AVERAGE. A WEAK WEATHER SYSTEM WILL MOVE INTO WESTERN
CANADA SUNDAY BRINGING CLOUDS AND ANOTHER CHANCE OF SHOWERS.

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

.TODAY...

SKY/WEATHER.........PARTLY SUNNY. CHANCE OF SHOWERS THROUGH THE
                    DAY. SLIGHT CHANCE OF THUNDERSTORMS IN THE
                    AFTERNOON.
CWR.................11 PERCENT.
MAX TEMPERATURE.....AROUND 66.
MIN HUMIDITY........52 PERCENT.
WIND (20 FT)........
 SLOPE/VALLEY.......SOUTH WINDS 6 TO 9 MPH SHIFTING TO THE
                    SOUTHWEST 5 TO 8 MPH IN THE AFTERNOON.
MIXING HEIGHT.......4500-5500 FT AGL.
TRANSPORT WINDS.....SOUTHWEST AROUND 7 MPH.

.TONIGHT...

SKY/WEATHER.........MOSTLY CLOUDY THEN BECOMING PARTLY CLOUDY.
                    CHANCE OF SHOWERS AND SLIGHT CHANCE OF
                    THUNDERSTORMS IN THE EVENING.
CWR.................LESS THAN 10%.
MIN TEMPERATURE.....AROUND 45.
MAX HUMIDITY........93 PERCENT.

.FRIDAY...

SKY/WEATHER.........PARTLY SUNNY.
CWR.................LESS THAN 10%.
MAX TEMPERATURE.....AROUND 67.
MIN HUMIDITY........43 PERCENT.
WIND (20 FT)........
 SLOPE/VALLEY.......NORTH WINDS 3 TO 9 MPH.
MIXING HEIGHT.......1200 FT AGL INCREASING TO 4000-4100 FT AGL LATE
                    IN THE MORNING.
TRANSPORT WINDS.....NORTHEAST AROUND 8 MPH.

.FORECAST DAYS 3 THROUGH 5...
.SATURDAY...
PARTLY CLOUDY. LOWS IN THE MID 40S. HIGHS 65 TO 75. NORTH WINDS
3 TO 7 MPH.
.SUNDAY...
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS. LOWS IN THE MID 40S. HIGHS
65 TO 75. SOUTH WINDS 3 TO 8 MPH.
.LABOR DAY...
MOSTLY CLOUDY. LOWS AROUND 50. HIGHS IN THE UPPER 60S. NORTH WINDS
3 TO 6 MPH.

$$
FORECASTER...BOWER
REQUESTED BY...NICK MILLER
TYPE OF REQUEST...PRESCRIBED
.TAG 20150903.TA15_.01/SEW


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