Everett, Virginia 7 Day Weather Forecast

Wx Forecast - Wx Discussion - Wx Aviation

447
FXUS66 KSEW 060349
AFDSEW

Area Forecast Discussion
National Weather Service Seattle WA
849 PM PDT Fri Sep 5 2025

.SYNOPSIS...A low pressure system will remain offshore over the
weekend and will move inland early next week, maintaining chances
for showers and thunderstorms across western Washington. Weak
ridging may allow for brief drying towards the end of next week,
but an active pattern looks to continue heading into next weekend.

&&

.SHORT TERM /TONIGHT THROUGH SUNDAY NIGHT/...Generally dry
conditions this evening, although a few showers have developed
with S/SE flow aloft over the Olympic and Kitsap Peninsula. Haze
and smoke will continue tonight for most of Western Washington
as well. Will need to continue to monitor the potential for
showers as early as Saturday morning, but particularly later
Saturday into Saturday night. Otherwise, no major changes to the
forecast this evening.

Previous discussion...As a high amplitude ridge
slowly shifts east of the Cascades and an upper level trough
deepens offshore, ripples in the southerly flow aloft will bring
several rounds of showers and thunderstorms over the next several
days. Latest radar imagery shows a band of showers slowly moving
north over southwestern Washington as a weak shortwave lifts
across the region. A thick layer of wildfire smoke aloft has
inhibited convection with this round of showers, and will likely
limit high temperatures today to the upper 70s and low 80s across
the lowlands and in the mid 60s along the coast.

Another weak shortwave will move north across western Washington
tonight into Saturday morning, generating another round of showers
mainly near the Puget Sound southward. As the day progresses, a
stronger shortwave will ripple northward in the southerly flow
aloft, bringing another round of showers and thunderstorms
northward in the afternoon and evening hours. Thunderstorm
activity is favored to initiate over the Cascades near Mt.
Rainier, though some strikes cannot be ruled out over the lowlands
Saturday evening as the precipitation fills in over the lowlands
and tracks northward. Increased onshore flow and cloudier skies
combined with thick wildfire smoke will limit temperatures
Saturday to the 60s and 70s.

The upper level low offshore will creep closer to the coast on
Sunday, bringing another shortwave northward with continued
chances for showers and thunderstorms. A cooling trend will
continue under cloudy skies, with highs peaking near the 70 degree
mark across much of the lowlands on Sunday. The trough axis will
shift inland on Monday, bringing more of the same with chances of
additional showers and isolated thunderstorm activity.

&&

.LONG TERM /MONDAY THROUGH FRIDAY/...Forecast models continue to
show good agreement over cooler and unsettled conditions
continuing into mid-week as the trough stalls overhead on Tuesday.
Forecast confidence decreases into the middle of next week, with
ensembles maintaining a chance of showers through the week while
deterministic models still show a weak ridge building overhead.
This could allow for a day of dry conditions across western
Washington before more incoming precipitation. Temperatures are
favored to remain below normal through the forecast period,
peaking in the 60s to mid 70s for most areas.

15


&&

.AVIATION...An upper ridge east of the Cascades and an upper trough
offshore will continue to produce south to southeast flow aloft over
Western Washington. An upper level disturbance will produce elevated
instability for isolated showers and thunderstorms across southern
portions of the area late tonight into Saturday morning. Weak low
level onshore flow will pull low stratus and patchy fog inland
across the interior lowlands again Saturday morning.

KSEA...Hazy/smoky conditions will persist with increasing high and
mid level clouds. Convective activity is expected to remain south of
the terminal through 12Z tonight. Another period of LIFR/IFR stratus
is likely 12Z-18Z Saturday morning. Surface winds W/NW 4 to 7 knots
this afternoon will shift to S/SW 6 knots or less tonight.

27/McMillian

&&

.MARINE...A weak surface ridge will remain over the coastal and
offshore waters into Saturday with lower pressure over the interior
producing light onshore flow. A weak trough will gradually move into
the coastal waters early next week, but will produce little in the
way of impacts. 27

&&

.FIRE WEATHER...Increasing onshore flow will increase the RH
values across the area including the foothills today. There is a
chance of showers over the weekend with a chance (20-35%) of
widespread thunderstorms in the late afternoon and evening
Saturday, mainly focused in the Cascades. There is also a slight
chance for thunderstorms starting as early as later this
afternoon for the very southern end of the west slopes of the
Cascades. The main hazards with these thunderstorms are erratic
winds, brief downpours, and lightning. Confidence continues to
remains low with exact coverage and intensity of the convective
activity. The pattern looks to turn cool and showery through the
middle of next week and will keep the fire danger suppressed.

Felton/Mazurkiewicz

&&

.SEW WATCHES/WARNINGS/ADVISORIES...
WA...Air Quality Alert until noon PDT Saturday for Cascades of
     Snohomish and Northern King Counties-Cascades of Southern
     King County-City of Seattle-Downtown Everett / Marysville
     Area-Eastside-Foothills and Valleys of Central King
     County-Foothills and Valleys of Pierce and Southern King
     Counties-Foothills and Valleys of Snohomish and Northern
     King Counties-Foothills and Valleys of the North Cascades-
     Lowlands of Pierce and Southern King Counties-Lowlands of
     Western Skagit and Northwestern Snohomish Counties-
     Shoreline / Lynnwood / South Everett Area.
PZ...None.

&&

$$