Brier Weather Station
Latitude N 47° 46' 49" Longitude W 122° 16' 48" Elevation 341 ft
666
FXUS66 KSEW 070351
AFDSEW
Area Forecast Discussion
National Weather Service Seattle WA
752 PM PST Fri Mar 6 2026
.SYNOPSIS...A warm front will bring widespread lowland rain and
mountain snow for the highest elevations tonight with showers
lingering into Saturday. A cooler system remains on track early next
week with heavy mountain snow and the potential for an early morning
rain/snow mix for parts of the interior lowlands.
&&
.SHORT TERM /TONIGHT THROUGH SUNDAY NIGHT/...A warm front continues
to influence conditions over W WA this evening as radar remains
active with much of the CWA seeing light to moderate showers. Temps
this evening have been slow to cool with most obs hovering right
around 50 degrees or just a degree or two cooler. With dewpoints in
the upper 40s, overnight lows may not budge too much from what is
currently being observed. Inherited forecast remains on track with
activity becoming more scattered overnight and into Saturday...but
never fully ending...before more uniform and consistent precip
returns with the anticipated cold front starting Sunday night.
No evening updates are anticipated. For additional forecast details,
please refer to the Previous Discussion section below. 18
From Previous Discussion...A warm front is clipping the area today
for light precipitation. With the warmer air mass the snow levels
are higher and around 5,000 ft. We`re in the warm sector tonight and
Saturday as the front lifts north and stalls over southern B.C.
Temperatures on Saturday will be mild and in the lower to mid 50s.
Rain chances increase on Sunday a cold front sags south into western
WA. It will be breezy as well with gusts to 15 to 30 mph. Snow
levels will drop Sunday night with a few inches of snow in the
Cascades including both Stevens and Snoqualmie Pass. 33
&&
.LONG TERM /MONDAY THROUGH FRIDAY/...The weather pattern is
cold and wet moving through next week with low snow levels.
Strong, moist, westerly flow will hammer the mountains with
potential for several feet of snow. Rates increase on Wednesday
and Thursday which could make travel over the mountains
difficult. Across the lowlands, with low snow levels, there is a
rain/snow mix in the forecast Mon-Fri. The low level flow will
remain onshore, though, which will help temperatures mostly stay
above freezing and thus limit impacts. Snow levels will be
rising on Wed and Thu and any snow would mostly affect areas
close to the mountains. 33
&&
.AVIATION... A surface warm front will continue to pass through the
terminals through the afternoon into tonight. Flow aloft will
continue to remain northwest with this system with an upper level
high well offshore. A mix of ceilings ranging from MVFR to LIFR as
light rain moves through the terminals, continuing into Saturday.
Ceilings expected to continue deteriorating overnight with the
majority of terminals expected to go IFR/LIFR after 09Z. Improvement
to MVFR for most terminals likely by Saturday late morning/early
afternoon. Southwest winds 8-15 kt gusting to 20-25 kt for Puget
Sound terminals tonight and will continue into Saturday.
KSEA...IFR cigs with lowered vis as light rain moves across the
terminal tonight. Improvement into MVFR likely after 19Z. Light rain
will continue through Saturday morning with activity tapering
throughout the day. Southwest winds 10-15 kt gusting to 20 kt
tonight into Saturday morning. Winds will increase Saturday
afternoon with gusts greater than 25 kt likely (80-85% chance) after
21Z.
HPR/29
&&
.MARINE...
A surface warm front will pass through the waters today into
Saturday. No significant weather is expected with this first system,
but rain and mist may lower visibilities to mariners at times. The
flow pattern will remain largely onshore this weekend into next
week. The next likelihood of impactful weather will come with the
first trough of a progressive pattern later this weekend into next
week. The next system Saturday night through Monday will send strong
westerlies through the Strait of Juan de Fuca, with a medium chance
of gale gusts occurring. The gusty winds are also expected to spread
into the coastal waters, and the Admiralty Inlet with more
confidence in the gusts affecting small craft at this time. Another
system midweek next week will also produce gusty winds across all
waters.
Seas through Saturday will range from 6 to 8 feet, further
increasing to 9-12 ft Sunday through next week.
HPR
&&
.HYDROLOGY...Heavy precipitation over the Olympics will force
rises on the Skokomish River with the potential for flooding
late next week. No other river flooding is expected during the
next seven days.
&&
.SEW WATCHES/WARNINGS/ADVISORIES...
WA...None.
PZ...None.
&&
$$
NWS SEW Office Area Forecast Discussion