Bellingham, Virginia 7 Day Weather Forecast

Wx Forecast - Wx Discussion - Wx Aviation

292
FXUS66 KSEW 141544
AFDSEW

Area Forecast Discussion
National Weather Service Seattle WA
844 AM PDT Sun Jun 14 2026

.SYNOPSIS...
A dry and warm airmass associated with a strong upper level ridge
will settle over western Washington through Monday.
Temperatures peaking in the 80s and 90s will bring widespread
Moderate HeatRisk to the region today and again Monday.
Offshore flow will bring lower relative humidities and elevated
fire danger. The ridge will weaken on Tuesday, resulting in
increased onshore flow and seasonable temperatures through the
rest of the week.

&&

.SHORT TERM /TODAY THROUGH TUESDAY/...
No significant forecast updates this morning. Temperatures are
a bit warmer than expected so far, already with temperatures
across the metro and the southwest interior a few degrees on
either side of 70 this morning. Forecast for Seattle will be in
the upper 80s, just short of 90 for today. 62

Infrared satellite imagery depicts high level
cirrus clouds advecting in from British Columbia. Winds have
remained light overnight with offshore flow along the coast. A
strong upper level ridge remains anchored offshore, bringing hot
and dry conditions through Monday. Temperatures will climb into
the 80s and 90s today and Monday during peak heating hours as a
thermal trough moves in, hottest into the mid 90s in interior
southwest Washington. Widespread Moderate HeatRisk is expected
both Sunday and Monday. Record temperatures will likely be
broken today and again on Monday along the I-5 corridor,
particularly in Seattle and Olympia. Little to no overnight
relief is expected with temperatures only briefly dropping into
the 50s and 60s for lows both tonight and Monday night. Record
warm low temperatures are also likely to be broken in Seattle
and Olympia as temperatures along I-5 from Everett to Olympia
may only drop to 65 degrees overnight tonight and Monday night.
Know the signs of heat related illnesses and take precautions to
stay safe from the heat! Vulnerable populations and those who
do not have access to air conditioning are especially
susceptible to heat. The only exception to the heat on Monday
will be when the thermal trough will shifts eastward Sunday
night into Monday, bringing a reprieve from the heat for the
coast with highs in the 70s.

The upper level ridge flattens late Monday into Tuesday,
allowing for a brief break from the heat. Tuesday`s highs will
be much closer to normal for this time of the year as onshore
flow ensues with zonal flow aloft. Confidence is low but with
onshore flow, a Puget Sound Convergence Zone could set up late
in the day Tuesday. Have kept 10-20% chances for rain (mainly
drizzle) from the NBM in the forecast for east of Puget Sound
for Tuesday evening into early Wednesday morning.

&&

.LONG TERM /TUESDAY NIGHT THROUGH SATURDAY/...
Onshore flow continues throughout the week with zonal flow aloft
and near normal to slightly warmer than normal temperatures. The
upper level ridge may amplify slightly again by mid to late
week, with forecast highs generally in the 70s to low 80s. We
could see a return to temperatures in the low to mid 80s along
the I-5 corridor depending on how amplified the upper level
ridge gets. Chances for precipitation are very low (less than
10%) mid to late in the week given the persistent dry and
stable airmass.

&&

.AVIATION...
High pressure and offshore flow will lead to dry
and stable conditions across western Washington. VFR conditions
will prevail through the TAF period. Winds N/NE, becoming 5-10
kt this afternoon. Winds become less than 5 kt after 06Z this
evening.

KSEA...VFR conditions today with increasing high clouds tonight.
N/NE winds up to 5-10 kt with a few gusts up to 15 kt possible
this afternoon. Winds become light E overnight.

&&

.MARINE...
Offshore flow today with a thermal trough along the
coast. The thermal trough will shift east of the Cascades on
Monday with a return to onshore flow. Expect strong winds with
possible gales through the strait of Juan de Fuca Monday night
and Tuesday. Onshore flow prevails through the rest of the week
with strongest winds and highest seas over the outer coastal
waters. Highest winds through the strait will be during the
afternoon and evening hours each day. 33

&&

.FIRE WEATHER...
Dry conditions and much warmer than normal temperatures over
the next two days will bring elevated fire weather concerns
through Monday. A persistent upper level ridge remains over the
area with offshore flow today. Widespread high temperatures in
the 80s and 90s are expected today and Monday with low relative
humidity values. The lowest minimum relative humidity values are
expected over the southwest Interior where humidities may drop
to 15 to 20 percent both this afternoon and again on Monday
afternoon. Even though fine fuels have not reached critical
thresholds, this rapid drying will create elevated fire concerns
especially for dry grassy/shrubby areas, as well as piles of
dead fuels. Offshore flow today into Monday will prevent good
relative humidity recoveries overnight. Relative humidities
improve with the return of onshore flow Tuesday. Low level
onshore flow and seasonable temperatures throughout the week
will ease fire weather concerns.


&&

.CLIMATE...
SeaTac is forecast to reach 87-89 degrees on Sunday, June 14,
which would break the current record of 86 degrees set back in
1988. NBM probabilities for highs of 90 degrees or warmer at
SeaTac on Sunday are at 5%. SeaTac is forecast to reach 90-92
degrees on Monday, June 15, which would break the current record
of 88 degrees set back in 1963. While it is not the most likely
outcome, two consecutive days of 90 degrees or warmer cannot be
completed ruled out. This is very rare at SeaTac during the
first half of June; the last time that occurred is June 6-7,
2003.

Olympia is also likely to break record high temperatures on
Sunday, June 14 and Monday, June 15. Forecast highs on both
days are currently at 94 degrees. This would break two daily
record highs, as the current record high for June 14 is 88
degrees set back in 1999, and the current record high for June
15 is 88 degrees set back in 1963.

Even Hoquiam is likely to break a record high temperature on
Sunday, June 14. The current forecast suggests Hoquiam will peak
near 87 degrees on Sunday, which would break the current record
high of 79 degrees set back in 1988.

-23

&&

.SEW WATCHES/WARNINGS/ADVISORIES...
WA...Heat Advisory until 5 AM PDT Tuesday for City of Seattle-
     Downtown Everett / Marysville Area-Eastern Kitsap County-
     Eastern Strait of Juan de Fuca-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 Thurston and Lewis Counties-Foothills and
     Valleys of the North Cascades-Foothills of the Western
     and Southern Olympic Peninsula-Island County-Lake
     Crescent Area Including US 101-Lower Chehalis River
     Valley-Lowlands of Lewis and Southern Thurston Counties-
     Lowlands of Pierce and Southern King Counties-Lowlands of
     Western Skagit and Northwestern Snohomish Counties-
     Lowlands of Western Whatcom County-Middle Chehalis River
     Valley-Northern Hood Canal-Olympia and Southern Puget
     Sound-Port Townsend Area-San Juan County-Shoreline /
     Lynnwood / South Everett Area-Southern Hood Canal-Willapa
     and Black Hills.

PZ...None.

&&

$$