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FNUS76 KSEW 181255
FWSSEW

Spot Forecast for WIWFA June Session...WA-DNR
National Weather Service Seattle WA
555 AM PDT Wed Jun 18 2025

Forecast is based on forecast start time of 0600 PDT on June 18.
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 cold front will move across the site today,
bringing chances of showers and a slight uptick in westerly winds
this afternoon and evening in its wake. Patchy fog development
possible in the vicinity of the site during the overnight and
early morning hours. Drier conditions are expected on Thursday.

.TODAY...

Sky/weather.........Mostly cloudy (80-90 percent). Rain showers
                    likely through the day.
Chance of pcpn......70 percent.
Chance of lightning.14 percent.
Max temperature.....Around 64.
Min humidity........59 percent.
Surface winds (mph).Southwest winds 5 to 7 mph shifting to the west
                    6 to 8 mph in the afternoon.
Mixing Height.......1650 ft AGL rising to 3395 ft AGL by this
                    afternoon.
Transport Winds.....Southwest 6 to 8 mph becoming west 10 to 14
                    mph by the late morning.
Pcpn amount.........0.11 inches.

.TONIGHT...

Sky/weather.........Mostly cloudy (65-75 percent). Slight chance of
                    rain showers in the evening. Patchy fog developing
                    overnight.
Chance of pcpn......20 percent.
Chance of lightning.12 percent.
Min temperature.....Around 43.
Max humidity........97 percent.
Surface winds (mph).West wind 7 to 9 mph becoming light and variable
                    overnight.
Mixing Height.......3395 ft AGL decreasing to 1650 ft AGL overnight.
Transport Winds.....West winds 10 to 14 mph in the evening becoming
                    southwest 6 to 8 mph late.
Pcpn amount.........0.01 inches.

.JUNETEENTH...

Sky/weather.........Patchy fog in the morning, then becoming partly
                    sunny (60-70 percent).
Chance of pcpn......Less than 10 percent.
Chance of lightning.0 percent.
Max temperature.....Around 65.
Min humidity........49 percent.
Surface winds (mph).Northwest winds 4 to 7 mph increasing to 6 to
                    8 mph in the afternoon.
Mixing Height.......1650 ft AGL rising to 4300 ft AGL by late
                    morning.
Transport Winds.....Northwest around 6 to 8 mph.
Pcpn amount.........0.00 inches.

$$
Forecaster...Borth
Requested by...Ross A Avichouser
Type of request...OTHER
.TAG 2515582.2/SEW
.DELDT 06/18/25
.FormatterVersion 2.0.0
.EMAIL brandon.taylor@dnr.wa.gov,sean.kibbe@dnr.wa.gov,lois.anderson@dnr.wa.gov,ross.avichouser@dnr.wa.gov,krissy.mitchell@dnr.wa.gov