Brier Weather Station
Latitude N 47° 46' 49" Longitude W 122° 16' 48" Elevation 341 ft
557
FXUS66 KSEW 151017
AFDSEW
Area Forecast Discussion
National Weather Service Seattle WA
217 AM PST Thu Jan 15 2026
.SYNOPSIS...Dry and stable weather through early next week with
high pressure over the region.
&&
.SHORT TERM /TODAY THROUGH SATURDAY/...Strong high pressure
remains anchored over the Pac NW leading to dry and stable
weather across western WA. Poor mixing will lead to low clouds
trapped near the surface with only partial burnoff during the
afternoon. In the mountains, above the inversion, expect plenty
of sunshine. High temperatures will range in the 40s to near 50.
Lows will trend cooler and in the 30s Friday through the
weekend, with temps near freezing over the south sound. 33
&&
.LONG TERM /SATURDAY NIGHT THROUGH WEDNESDAY/...High pressure
will continue to bring dry and stable weather heading toward the
middle of next week. Very good agreement in the ensemble members
for high confidence. Lows will remain chilly and in the 30s
each morning. 33
&&
.AVIATION...A mix of low stratus and pockets of fog early this
morning. LIFR conditions in fog have developed from PAE northwards
and the Strait of Juan de Fuca. MVFR in low stratus for terminals
outside of fog. In addition to the low stratus, NE winds 5-8 kt
should hinder fog formation at these terminals. Ceilings will
continue a downward trend this morning, with IFR conditions expected
after 12Z. Improvement into VFR after 20Z-22Z for all
terminals. NE winds will continue to increase throughout the
morning and afternoon to 8-12 kt.
Clear skies and light to calm winds may create more favorable
conditions for fog development Thursday night. Current probabilities
for LIFR conditions in fog are between 20-30%.
KSEA...IFR conditions at the terminal with low stratus early this
morning. Expecting the combination of low stratus and NE winds to
prevent fog developing at the terminal. Ceilings are expected to
improve later this afternoon to VFR. NE winds today 8-13 kt.
There is some uncertainty whether Thursday night will bring another
low stratus event or fog. While skies look to remain mostly clear,
elevated NE winds may hinder fog development.
29
&&
.MARINE...Offshore flow through Friday with highest wind and
waves through the central/western Strait of Juan de Fuca - a
Small Craft Advisory is in effect. Offshore flow eases over the
weekend with generally light winds over the waters.
&&
.HYDROLOGY...No river flooding is expected over the next 7 days.
&&
.SEW WATCHES/WARNINGS/ADVISORIES...
WA...None.
PZ...Small Craft Advisory from 10 AM this morning to 10 AM PST
Friday for Central U.S. Waters Strait Of Juan De Fuca-
West Entrance U.S. Waters Strait Of Juan De Fuca.
&&
$$
NWS SEW Office Area Forecast Discussion