Brier Weather Station
Latitude N 47° 46' 49" Longitude W 122° 16' 48" Elevation 341 ft
220
FXUS66 KSEW 252128
AFDSEW
Area Forecast Discussion
National Weather Service Seattle WA
228 PM PDT Fri Sep 25 2026
.SYNOPSIS...
The strong low pressure system is making its way into the
Cascades. Winds have been strong this afternoon, but are on the
way down in the Puget Sound area. Elevated winds will continue
through the Strait of Juan de Fuca tonight. Drier conditions are
forecast for the weekend, with a return to unsettled weather
early in the week.
&&
.SHORT TERM /TONIGHT THROUGH SUNDAY NIGHT/...
The low has moved into the Cascades, with more lightning
activity now on the east side of the crest. Steady rain is still
progressing through King and Snohomish Counties on its way into
the Cascades, with scattered showers moving inland from the
coast. Winds are beginning to diminish throughout the Puget
Sound region, but strong westerly winds are still expected
through the Strait of Juan de Fuca this evening on the backside
of the front. Additional rain showers are likely through this
evening, with drier conditions expected overnight.
Due to the strong winds, there are a number of power outages
being reported in the region, as well as debris on area
roadways. Exercise caution navigating the region this evening
with these hazards and outages in place. Wind advisories are
still in effect until 5 PM local time for the south Sound region
and coast, and until 8 PM for the northern Olympic Peninsula
and Island County. Preliminary wind gust reports show speeds as
high as 58 mph on the coast near Westport and 38 mph for Sea-Tac
airport today.
Cloudy and cool, though drier weather is expected tomorrow.
Highs will struggle to get much above the low 60s. Morning lows
will be in the upper 30s in the Cascade foothills and 40s
throughout the Sound. More sun is expected on Sunday, but
temperatures will remain the same.
21
&&
.LONG TERM /MONDAY THROUGH FRIDAY/...
Zonal flow aloft will allow an additional system to drop into
the area Monday evening into Tuesday for renewed chances of rain
and breezy conditions. The models aren`t exactly sure what to do
with the middle of the week, though there is still some
semblance of convergence on zonal flow to weak ridging for that
time frame. Additional unsettled weather seems possible late in
the week as broad troughing returns to the eastern Pacific, as
indicated in the longer range ensemble analysis. Highs will be
in the low to mid 60s throughout the week.
21
&&
.AVIATION...
Upper level low will exit the region this evening with showers
tapering off. However, could still see shower activity with the
convergence zone in King and Snohomish counties, especially in
the Cascades. Ceilings are a mixed bag with VFR along the coast
and MVFR to IFR in the interior. Will continue to see pockets of
MVFR and IFR overnight, then becoming VFR Saturday afternoon
with high pressure and drier conditions. SW to W gusty winds to
20-30kt will continue this afternoon with highest winds
overnight through the Strait of Juan de Fuca. 33
KSEA...Showers, gusty winds and MVFR cigs through at least 00z
Sat, with winds easing thereafter. Brief IFR to LIFR conditions
are possible early Saturday from 14-17z. Expect VFR by the
afternoon with surface winds turning northerly. 33
&&
.MARINE...
Strong onshore flow is expected this evening with strongest
west winds through the Strait of Juan de Fuca - a Gale Warning
remains in effect. Winds elsewhere will gradually ease. The flow
will turn offshore on Saturday with weak high pressure. On
Sunday, an approaching frontal system will dissipate over the
offshore waters. A stronger frontal system will reach WA Monday
night and Tuesday with increasing south winds. 33
&&
.SEW WATCHES/WARNINGS/ADVISORIES...
WA...Wind Advisory until 5 PM PDT this afternoon for Foothills and
Valleys of Pierce and Southern King Counties-Foothills
and Valleys of Thurston and Lewis Counties-Grays Harbor
County Coast-Lowlands of Lewis and Southern Thurston
Counties-Lowlands of Pierce and Southern King Counties-
Middle Chehalis River Valley-Olympia and Southern Puget
Sound-Southern Hood Canal-Willapa and Black Hills.
Wind Advisory until 8 PM PDT this evening for Eastern Strait
of Juan de Fuca-Island County-Northern Washington Coast-
Port Townsend Area-Western Strait of Juan de Fuca.
PZ...Gale Warning until 5 AM PDT Saturday for Central U.S. Waters
Strait Of Juan De Fuca-East Entrance U.S. Waters Strait
Of Juan De Fuca-West Entrance U.S. Waters Strait Of Juan
De Fuca.
Small Craft Advisory until 5 AM PDT Saturday for Coastal
Waters From Cape Flattery To James Island 10 To 60 Nm-
Coastal Waters From Cape Flattery To James Island Out 10
Nm-Coastal Waters From James Island To Point Grenville 10
To 60 Nm-Coastal Waters From James Island To Point
Grenville Out 10 Nm-Coastal Waters From Point Grenville
To Cape Shoalwater 10 To 60 Nm-Coastal Waters From Point
Grenville To Cape Shoalwater Out 10 Nm-Northern Inland
Waters Including The San Juan Islands.
Small Craft Advisory until 11 PM PDT this evening for
Admiralty Inlet-Puget Sound and Hood Canal.
&&
$$
NWS SEW Office Area Forecast Discussion