Brier Weather Station
Latitude N 47° 46' 49" Longitude W 122° 16' 48" Elevation 341 ft
014
FXUS66 KSEW 281610
AFDSEW
Area Forecast Discussion
National Weather Service Seattle WA
910 AM PDT Tue Apr 28 2026
.SYNOPSIS...
Another round of onshore flow and stratus clouds are expected
today, with light drizzle expected at times. High pressure noses
back in Wednesday and Thursday for clearing skies and warming
temperatures. Increased cloud cover is again expected late in
the week as a dry front moves through the region. Stronger high
pressure and offshore flow is indicated for next week.
&&
.SHORT TERM /TODAY THROUGH THURSDAY/...
Low clouds and stratus continue across western Washington this
morning as onshore flow continues. Expect another day of clouds
and isolated pockets of drizzle today with cooler temperatures
in the upper 50s and low 60s. Afternoon highs from Wednesday
through the end of the week are suggestive of minor HeatRisk.
After today, high pressure builds into the area for the middle
of the week, gradually decreasing the cloud cover and bringing
the temperatures back into the upper 60s and even low 70s by
Thursday. Outside of diurnal westerly winds through the Strait
of Juan de Fuca, much of the Puget Sound region should see light
northerly winds.
A dry front will progress through on Thursday as the high
pressure scoots east, bringing clouds back in the later half of
the day.
&&
.AVIATION...
High pressure remains offshore today with low level onshore flow at
the surface. A weak disturbance in the northerly flow may generate
isolated light showers, mainly within a wide band currently passing
through the eastern half of the Olympic Peninsula and portions of
the east side of the Sound. Wide range of cigs this morning with
pockets of VFR conditions in the far south and far north of the CWA,
the majority of forecast terminals seeing MVFR conditions and a
couple of isolated IFR locations...including PAE at the time of this
writing. General trend for lifting and scattering of low clouds
throughout the day today remains on track, with widespread VFR with
SCT-BKN around 5000 ft expected over most terminals by this evening.
Clouds will continue to lift and gradually scatter overnight and
into Wednesday morning...except perhaps along the coast, including
HQM. 33/18
KSEA...Lingering MVFR conditions with cigs right around 2500 ft and
some SCT low-level clouds generally 1000-1500 ft. Gradual
improvement throughout the day still expected, with SCT-BKN cigs
around 5000 ft this afternoon and the remainder of the TAF period.
S/SW wind up to 10 kt becoming W and NW/N around 5 kt after 00z.
33/18
&&
.MARINE...High pressure remains offshore with lower pressure
inland, maintaining onshore flow. A stronger onshore push is
forecast down the Strait of Juan de Fuca Thursday afternoon and
evening with cold front. 33
&&
.HYDROLOGY...
No river flooding is expected over the next 7 days.
&&
.SEW WATCHES/WARNINGS/ADVISORIES...
WA...None.
PZ...None.
&&
$$
NWS SEW Office Area Forecast Discussion