Brier Weather Station
Latitude N 47° 46' 49" Longitude W 122° 16' 48" Elevation 341 ft
134
FXUS66 KSEW 251043
AFDSEW
Area Forecast Discussion
National Weather Service Seattle WA
243 AM PST Wed Feb 25 2026
.SYNOPSIS...
The next disturbance will cross the area on Wednesday, bringing
additional snow to the mountains and rain to the lowlands. After
showers linger later in the week, primarily in the northern
interior, a trend towards drier conditions emerge over the
weekend and continue into the first half of next week.
&&
.SHORT TERM /TODAY THROUGH FRIDAY/...
A stagnant pattern remains in the upper-levels of the
atmosphere. Upstream, a rex block is the culprit as a high
center stretches into the Bering Sea in concert with a cutoff
low on the southern periphery of the area of high pressure.
Closer to home, northwest flow regime aloft with high pressure
at the surface. Today will start off dry with patchy low clouds
and fog in the early morning. Then, the next frontal system will
arrive from of the NW, bringing a glancing blow of lowland rain
showers (primarily along the coast and Olympics) and mountain
snow mostly for the North Cascades - Stevens Pass northward.
Intense snowfall rates are not expected but instead rather
steady with snow totals ranging close to a foot for areas such
as Mt. Baker Ski area through Friday. Snow levels mainly 2,000
to 3,000 throughout the short-term forecast.
The upper-level pattern won`t vary much for the next few days.
Temperatures are forecast to remain seasonal with highs in the
upper 40s to near 50 F. Overnight lows are forecast to fall into
the mid 30s to lower 40s.
41
&&
.LONG TERM /FRIDAY NIGHT THROUGH TUESDAY/...
Ensembles suggests the upper-level pattern will progress in the
long-term forecast. The aforementioned cut off low will become
ingested in the mean-flow over the weekend as it tracks inland
over N. California/S. Oregon. 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.
&&
.AVIATION...
West to northwest flow over western WA today under
moderate onshore flow. The low level air mass remains moist with
BKN-OVC clouds around 3000-5000 ft, along with pockets of patchy
fog. Mainly VFR conditions expected this afternoon with showers
primarily in the north coast, Olympics and northern Cascades.
Little overall change moving into Wednesday night. 33
KSEA...VFR expected with ceilings between 3000-5000 ft. SE winds
around 5 kt becoming S/SW 10 kt by 18Z. 33
&&
.MARINE...
Moderate onshore flow prevails through Thursday with
winds gradually easing on Friday. Seas will also build over 10
ft on Friday, primarily over the outer Coastal Waters. The flow
will turn offshore over the weekend and continue into early
next week. 33
&&
.HYDROLOGY...
No river flooding is expected during the next seven days.
&&
.SEW WATCHES/WARNINGS/ADVISORIES...
WA...Winter Weather Advisory from 4 AM early this morning to 4 AM
PST Friday for Cascades of Snohomish and Northern King
Counties-Cascades of Whatcom and Skagit Counties.
PZ...Small Craft Advisory until 4 AM PST Thursday 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 from 10 AM this morning to 4 AM PST
Thursday 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.
&&
$$
NWS SEW Office Area Forecast Discussion