Suppression Forecast
Issued by NWS Seattle/Tacoma, WA

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FNUS76 KSEW 212215
FWSSEW

Spot Forecast for DRILL-EXERCISE SAR 7-22-17...Mercer Island CERT
National Weather Service Seattle WA
315 PM PDT Fri Jul 21 2017

Forecast is based on incident time of 1600 PDT on July 21.
If conditions become unrepresentative...contact the National Weather
Service.

Please contact our office at (206) 526-6095, if you have questions
or concerns with this forecast.

.DISCUSSION...A weak upper level disturbance and warm front will
brush northern portions of Western Washington tonight through
Saturday giving an increase in cloudiness, however conditions are
expected to remain VFR. After briefly clearing Saturday evening,
clouds with bases around 3000 feet to form after Midnight Saturday
night then to dissipate about midday Sunday.

.TONIGHT...

Sky/weather.........Mostly cloudy.
Chance of pcpn......10 percent.
Min temperature.....Around 61.
Max humidity........81 percent.
Surface winds.......Northwest winds 5 to 10 knots shifting to the
                    south after midnight.
10000 ft winds......West 20 to 25 knots.
Pcpn amount.........0.00 inches.
Ceiling (ft)........above 10000 feet falling to around 5000 feet with
                    a second layer at 8000 feet after midnight.
Visibility (sm).....Greater than 6 SM.

.SATURDAY...

Sky/weather.........Mostly cloudy.
Chance of pcpn......10 percent.
Max temperature.....Around 80.
Min humidity........56 percent.
Surface winds.......South winds 5 to 10 knots.
10000 ft winds......West-southwest 20 to 25 knots.
Pcpn amount.........0.00 inches.
Ceiling (ft)........4000 to 5000 feet with a second layer around 8000 feet.
                    The lower layer will scatter out after about Noon PDT.
Visibility (sm).....Greater than 6 SM.

.SATURDAY NIGHT...
Sky/Weather.........Partly cloudy, becoming cloudy after midnight.
Chance of pcpn......Near zero.
Min temperature.....Around 60.
Max humidity........About 85 percent.
Surface winds.......Variable less than 4 knots.
10000 ft winds......West 25-30 knots.
Pcpn amount.........0.00 inches.
Ceiling (ft)........Around 3000 feet after midnight.
Visibility (sm).....Greater than 6 SM.

.SUNDAY...
Sky/weather.........Morning clouds, then sunny by around Noon PDT.
Chance of pcpn......Near zero.
Max temperature.....78 to 80.
Min humidity........About 45 percent.
Surface winds.......Light becoming Northwest 8 to 12 knots after Noon.
10000 ft winds......Northwest 15-20 knots.
Pcpn amount.........0.00 inches.
Ceiling (kft).......3000 feet in the morning, no ceiling in the afternoon.
Visibility (sm).....Greater than 6 SM.

$$
Forecaster...Albrecht
Requested by...Jennifer Franklin
Type of request...SAR
.TAG 1713139.0/SEW



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