Suppression Forecast
Issued by NWS Seattle/Tacoma, WA

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FNUS76 KSEW 282238
FWSSEW

SPOT FORECAST FOR ALDER LAKE FIRE...USFS
NATIONAL WEATHER SERVICE SEATTLE WA
338 PM PDT FRI AUG 28 2015

FORECAST IS BASED ON REQUEST TIME OF 1523 PDT ON AUGUST 28.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE IN SEATTLE.

.DISCUSSION...A LOW PRESSURE SYSTEM OFF THE CALIFORNIA COAST WILL
TRACK INTO THE PACIFIC NORTHWEST ON SATURDAY. THIS SYSTEM WILL
BRING WINDY AND WET CONDITIONS TO WESTERN WASHINGTON LATER
TONIGHT THROUGH SATURDAY EVENING. RAIN AMOUNTS AROUND 1 INCH ARE
EXPECTED...EXCEEDING WETTING RAIN THRESHOLD. IN ADDITION...GIVEN
THE PROLONGED DRY CONDITIONS THIS SUMMER...STRESSED TREES MAY SHED
MORE FALLEN LIMBS THAN USUAL IN THE WINDY CONDITIONS SATURDAY - A
SAFETY ISSUE. THIS COOLER WETTER WEATHER PATTERN IS FORECAST TO
CONTINUE INTO NEXT WEEK WITH AT LEAST A COUPLE MORE SYSTEMS
MOVING ONSHORE. ADDITIONAL WETTING RAINFALL IS LIKELY SUNDAY
THROUGH EARLY NEXT WEEK.

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

.TONIGHT...

SKY/WEATHER.........CLOUDY. CHANCE OF SHOWERS IN THE EVENING...THEN
                    RAIN LIKELY AFTER MIDNIGHT.
CWR.................25 PERCENT.
MIN TEMPERATURE.....AROUND 56.
MAX HUMIDITY........100 PERCENT.
WIND (20 FT)........
 SLOPE/VALLEY.......NORTH WINDS 3 TO 4 MPH SHIFTING TO THE EAST 5
                    TO 8 MPH AFTER MIDNIGHT.
HAINES INDEX........2 OR VERY LOW.
LAL.................1.
RAINFALL AMOUNT.....0.15 INCHES.

.SATURDAY...

SKY/WEATHER.........CLOUDY. RAIN.
CWR.................100 PERCENT.
MAX TEMPERATURE.....AROUND 63.
MIN HUMIDITY........75 PERCENT.
WIND (20 FT)........
 SLOPE/VALLEY.......SOUTHWEST WINDS 5 TO 10 MPH INCREASING TO 8 TO 17
                    MPH WITH GUSTS TO AROUND 45 MPH IN THE
                    AFTERNOON.
HAINES INDEX........2 OR VERY LOW.
LAL.................1.
RAINFALL AMOUNT.....0.75 INCHES.

$$
FORECASTER...MERCER
REQUESTED BY...KATIE SANTINI
TYPE OF REQUEST...WILDFIRE
.TAG 20150828.ALDER.01/SEW


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