Brier Weather Station
Latitude N 47° 46' 49" Longitude W 122° 16' 48" Elevation 341 ft
033
FXUS66 KSEW 301006
AFDSEW
Area Forecast Discussion
National Weather Service Seattle WA
306 AM PDT Thu Jul 30 2026
.SYNOPSIS...
Dry and warm conditions continue today across Western
Washington, with even warmer temperatures Friday. The next
disturbance shifts over the area late Friday through Saturday,
bringing cooler and cloudy conditions along with showers and
isolated thunderstorms. High pressure returns early next week,
bringing back dry and warmer conditions.
&&
.SHORT TERM /TODAY THROUGH SATURDAY/...
Dry and steadily warmer temperatures will continue across
western Washington through the next several days as low pressure
remains off the B.C. coast and gradually rising heights across
the region. Modest onshore flow continues in the lower levels of
the atmosphere each of these days, maintaining some degree of
clouds each morning that give way to mostly sunny skies in the
afternoon. Temperatures through the interior climb through into
the 70s today, with cool nights limiting the HeatRisk to minor
levels. Even with the warmest day of the week on Friday, as
temperatures reach the lower 80s, will maintain only a minor
risk of heat-releated illness.
Ensemble guidance continues to favor a shift in the pattern
late Friday into Saturday across the region, as the next upper
low shifts inland. This will usher the arrival of a more solid
cloud deck, cooler temperatures, and even some rainfall chances.
These rain chances will be highest along the coast and in the
Olympics, but a potential Puget Sound Convergence Zone behind
the system will also be another focus for shower chances. Gusty
southerly wind gusts also develop across much of the lowlands,
with gusts to 20-25 mph expected. There`s also around a 15-20%
chance for an isolated thunderstorm or two, especially closer to
the North Cascades
&&
.LONG TERM /SATURDAY NIGHT THROUGH WEDNESDAY/...
Any lingering showers likely come to end Sunday as the upper
low departs the region and heights again begin to rise. High
pressure builds across the interior during the early portions of
next week with steadily warmer temperatures. Expect highs in the
interior to again reach the 80s with a few spots approaching 90
Tuesday. This will largely maintain Minor HeatRisk for the early
part of next week, though chances increase to around 40-50%
Tuesday and Wednesday for some areas of Moderate HeatRisk for
the Seattle area south through Lewis County.
&&
.AVIATION...
Southwesterly flow aloft with weak low level onshore flow into
Friday. Areas of MVFR ceilings west of Puget Sound until 18z
otherwise mostly clear skies.
KSEA...Mostly clear skies through Friday morning. Variable wind
5 knots or less becoming southwest 4 to 8 knots around 15z,
west southwest 4 to 8 knots around 22z and northerly 4 to 8
knots after 04z. Felton
&&
.MARINE...
High pressure over the waters through Friday. Another
weak system will reach the waters Friday night and Saturday. High
pressure will rebuild over the coastal waters Sunday and remain in
place through Monday.
Gale force winds are likely in the Central and Eastern Strait
of Juan de Fuca late Saturday afternoon into Saturday evening.
Seas mostly in the 3 to 5 foot range over the inner coastal
waters and 4 to 6 feet over the outer coastal waters into the
first part of next week. Felton
&&
.FIRE WEATHER...
Next elevated fire weather conditions Friday with warmer and
drier weather with minimum relative humidity values approaching
30 percent in the Black Hills and SW Interior lowlands, SE
Puget Sound lowlands, and Cascade valleys. A system Saturday
will ease fire weather concerns with wetting rains north coast
and North Cascades. Slight chance, less than 15 percent, of
thunderstorms in the North Cascades near the Canadian border.
Another round of elevated fire weather concerns beginning Monday
and continuing through the week with above normal temperatures
and low late day minimum relative humidities. Felton
&&
.SEW WATCHES/WARNINGS/ADVISORIES...
WA...None.
PZ...Small Craft Advisory until 5 AM PDT early this morning for
Central U.S. Waters Strait Of Juan De Fuca-East Entrance
U.S. Waters Strait Of Juan De Fuca.
&&
$$
NWS SEW Office Area Forecast Discussion