Marine Weather Net

Central U.S. Waters Strait of Juan de Fuca Marine Forecast


TONIGHT

W
WINDS
10 - 15
KNOTS

TUE

W
WINDS
5 - 10
KNOTS

TUE NIGHT

W
WINDS
5 KNOTS

WED

NE
WINDS
5 KNOTS

The Marine Weather Forecast In Detail:
PZZ131 Forecast Issued: 133 PM PDT Mon Oct 05 2026

Tonight...W Wind 10 To 15 Kt, Easing To 5 To 10 Kt Late. Waves Around 3 Ft. Areas Of Dense Fog Late This Evening And Overnight.
Tue...W Wind 5 To 10 Kt, Becoming Nw In The Afternoon. Waves Around 2 Ft Or Less. Areas Of Dense Fog In The Morning.
Tue Night...W Wind Around 5 Kt. Waves Around 2 Ft Or Less.
Wed...Ne Wind Around 5 Kt. Waves Around 2 Ft Or Less.
Wed Night...N Wind Around 5 Kt. Waves Around 2 Ft Or Less.
Thu...E Wind 5 To 10 Kt, Becoming Ne In The Afternoon. Waves Around 2 Ft Or Less.
Thu Night...W Wind 5 To 10 Kt, Rising To 15 To 20 Kt After Midnight. Waves Around 2 Ft Or Less, Then 3 To 4 Ft After Midnight.
Fri...W Wind 15 To 20 Kt, Rising To 25 To 30 Kt In The Afternoon. Waves 4 To 6 Ft.
Fri Night...W Wind 25 To 30 Kt, Easing To 20 To 25 Kt After Midnight. Waves 5 To 7 Ft, Subsiding To 3 To 5 Ft After Midnight.
Sat...Sw Wind 5 To 10 Kt, Backing To Ne In The Afternoon. Waves 3 To 4 Ft.
Sat Night...Ne Wind 5 To 10 Kt. Waves Around 3 Ft In The Evening, Then Around 2 Ft Or Less.
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Area Forecast Discussion
National Weather Service Seattle WA
216pm PDT Monday Oct 5 2026

Synopsis
Zonal flow to weak ridging aloft and onshore flow at the surface will maintain seasonably warm conditions across western Washington through much of the week, with morning clouds and fog followed by afternoon sun breaks. Chances for rain increase towards Friday into the weekend alongside cooler temperatures as troughing develops over the Pacific Northwest.

Short Term - Tonight Through Wednesday Night
The overall weather pattern look to remain fairly similar through Thursday as mostly zonal flow trends towards slightly higher 500 mb heigheights by mid-week as the ridge over the southwestern U.S. expands. What that translates to for the Pacific Northwest is a routine pattern of morning clouds and fog, giving way to sunnier afternoons with high clouds overhead. Chances for fog will be greatest today as light winds will this afternoon and tonight, and continued moisture will help promote the redevelopment of the marine layer and areas of dense fog. Slightly stronger winds Tuesday and Wednesday may help to trend things towards stratus and less fog by mid-week, but areas of patchy fog will still remain possible in the sheltered valleys.

Temperatures will remain seasonably warm across the area with highs in the mid 60s to low 70s. Lows remain in the upper 40s to mid 50s.

Long Term - Thursday Through Monday
Upper level ridging looks to gain its greatest influence across Washington on Thursday, therefore also forecast to be the warmest day of the week with highs in the upper 60s to mid 70s.

Most models agree on the development of an upper level trough digging into the Pacific Northwest Friday into the weekend. There will be some slight chances for showers across portions of the area but widespread rain does not look very likely with this system. There remains some uncertainty in the exact timing but Friday into Saturday have the best chances at this time. But an increase in clouds and an increase in winds is to be expected. Cooler temperatures also looks to be in store with highs dipping into the upper 50s to low 60s this weekend, with lows in the upper 30s to mid 40s.

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Marine
Onshore flow will likely continue through the week with high pressure remaining offshore. Several areas of fog will be likely next couple of mornings with ample moisture in each of the pushes. A weak push this afternoon is expected to bring wind gusts up to 15-20 kt in the central Strait of Juan de Fuca. The southwestern coastal waters will also see pockets of similar wind gusts through the first part of the week. The next organized frontal system on Friday will likely bring small craft winds to the coastal waters, and a chance for gale gusts to portions of the Strait of Juan de Fuca.

Seas through Wednesday hold at 4-6 ft, and increase to 6-10 ft late this week with the late week systems passing through.

HPR

NOAA Seattle WA Office: Watches - Warnings - Advisories
WA...None. PZ...None.