Brier Weather Station
Latitude N 47° 46' 49" Longitude W 122° 16' 48" Elevation 341 ft
695
FXUS66 KSEW 271026
AFDSEW
Area Forecast Discussion
National Weather Service Seattle WA
226 AM PST Fri Feb 27 2026
.SYNOPSIS...
Mountain snow and spotty lowland rain showers will dwindle into
Friday night. A trend towards drier conditions then emerges
over the weekend and continue into the first half of next week
before the next front arrives around midweek. Near average
temperatures expected throughout the period.
&&
.SHORT TERM /TODAY THROUGH SUNDAY/...
The forecast has been a synonymous with a broken record the
last few days. However, pattern progression will be met here in
the short term - let`s dive in. An upper-low well offshore will
begin it`s gentle track landward today. Accompanying it to the
north is an upper-ridge stretching into the Bering Sea,
beginning to position itself over the Gulf of Alaska. We`ll
remain under northwesterly flow aloft as light spotty shower
activity continue today (snow for elevations above 3,000 ft). A
weak convergence zone may also develop into the evening across
the Puget Sound region but met with no impacts. Tonight,
conditions are slated to dry out completely with low
temperatures falling into the lower to upper 30s. NBM is showing
a 50-70% chance of overnight lows dropping below 32 F
throughout the Chehalis River valley along with a 30-40% chance
for the Cascade foothills on Saturday morning.
The aforementioned low center becomes well ingested into the
mean-flow later on Saturday into Sunday. Here, it`ll loom just
off the CA/OR coast with upper-level ridging over the Gulf of
Alaska. Conditions will remain dry and trend that way into next
week. High temperatures are to top out in the upper 40s to near
50 F with overnight lows cooling lower into the 30s each night.
&&
.LONG TERM /SUNDAY NIGHT THROUGH THURSDAY/...
Ensembles suggests the upper-level pattern will continue to progress
in the long-term forecast. The aforementioned cut off low will
track inland over N. California/S. Oregon on Sunday night -
early Monday morning. An upper-ridge will gradually position
over the PNW by early next week. Daytime highs are slated to
remain around average with cool overnight lows in the lower to
mid 30s. The next front looks to arrive around midweek with a
chance of widespread lowland rain and mountain snow.
&&
.AVIATION...
West to northwest flow aloft will continue through
today as the region remains on the periphery of a front located into
British Columbia. VFR/MVFR cigs exist early this morning, with the
majority of MVFR cigs across Puget Sound. Low end VFR to MVFR are
expected to continue through early afternoon, with VFR late
afternoon into the evening. Cigs will then lower again tonight into
Saturday morning. Light rain may occur at times, mainly north of
KPAE, into this afternoon, before drier conditions tonight. South to
southwest surface winds ranging between 5 to 12 kts through this
afternoon, with a few gusts to near 20 kts. Winds will ease tonight
and become northerly into early Saturday.
KSEA...MVFR cigs early this morning are expected to continue through
midday. Cigs will slowly lift towards low-end VFR, with brief MVFR
cigs, into this evening. Cigs lower again between 06-08z tonight.
S/SW surface winds of 7 to 12 kts through this afternoon will ease
this evening. Winds will then transition more NE on Saturday
morning. JD
&&
.MARINE...
Surface high pressure will build into the waters today,
with onshore flow gradually easing through this afternoon. Small
Craft Advisory wind gusts will continue at times for the central
Strait of Juan de Fuca today, with isolated SCA gusts for the
eastern Strait of Juan de Fuca. Winds will then transition more
northerly or weak offshore over the weekend. The next frontal system
looks to move into the waters Tuesday into Wednesday next week.
Seas will hover near 10 feet for the outer Coastal Waters through
today, before subsiding back into the 4 to 7 foot range over the
weekend through Tuesday. JD
&&
.HYDROLOGY...
No river flooding is expected during the next seven days.
&&
.SEW WATCHES/WARNINGS/ADVISORIES...
WA...Winter Weather Advisory until 4 AM PST early this morning for
Cascades of Snohomish and Northern King Counties-Cascades
of Whatcom and Skagit Counties.
PZ...Small Craft Advisory until 4 PM PST this afternoon for Central
U.S. Waters Strait Of Juan De Fuca-Coastal Waters From
Cape Flattery To James Island 10 To 60 Nm-Coastal Waters
From James Island To Point Grenville 10 To 60 Nm-Coastal
Waters From Point Grenville To Cape Shoalwater 10 To 60
Nm.
&&
$$
NWS SEW Office Area Forecast Discussion