Coastal Waters Forecast
Issued by NWS Seattle/Tacoma, WA

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859
FZUS56 KSEW 110942
CWFSEW

Coastal Waters Forecast for Washington
National Weather Service Seattle WA
242 AM PDT Mon Aug 11 2025

Inland waters of western Washington and the northern and central
Washington coastal waters including the Olympic Coast National
Marine Sanctuary

PZZ100-112245-
242 AM PDT Mon Aug 11 2025

.SYNOPSIS FOR THE NORTHERN AND CENTRAL WASHINGTON COASTAL AND INLAND
WATERS...High pressure will remain over the coastal waters through
Wednesday night then weaken Thursday. A thermally induced surface
trough along the coast will move over the inland waters today and
remain through Tuesday. The trough will shift east of the Cascades
Tuesday night. A front will reach the coastal waters Friday.

$$

PZZ150-112245-
Coastal Waters From Cape Flattery To James Island Out 10 Nm-
242 AM PDT Mon Aug 11 2025

.TODAY...N wind 5 to 10 kt, becoming NW 15 to 20 kt. Seas 7 to
9 ft. Wave Detail: W 9 ft at 11 seconds and SW 2 ft at
17 seconds. Widespread dense fog early this morning, then areas
of dense fog late this morning.
.TONIGHT...NW wind 10 to 15 kt. Seas 7 to 8 ft. Wave Detail: W
8 ft at 10 seconds and SW 2 ft at 17 seconds.
.TUE...NW wind 5 to 10 kt, rising to 10 to 15 kt in the
afternoon. Seas 7 to 8 ft. Wave Detail: W 7 ft at 10 seconds and
SW 2 ft at 17 seconds.
.TUE NIGHT...NW wind 15 to 20 kt, easing to 10 to 15 kt after
midnight. Seas 7 to 8 ft. Wave Detail: W 8 ft at 9 seconds and SW
2 ft at 17 seconds.
.WED...W wind 5 to 10 kt. Seas 6 to 8 ft. Wave Detail: W 7 ft at
9 seconds and SW 2 ft at 16 seconds.
.WED NIGHT...W wind 5 to 10 kt. Seas 5 to 6 ft. Wave Detail: W
5 ft at 8 seconds and SW 2 ft at 15 seconds.
.THU...S wind around 5 kt. Seas 4 to 5 ft. Wave Detail: W 4 ft at
9 seconds and SW 2 ft at 15 seconds. A chance of rain.
.THU NIGHT...S wind around 5 kt. Seas 3 to 4 ft. Wave Detail: W
4 ft at 9 seconds and SW 2 ft at 15 seconds. A chance of rain.
.FRI...S wind 5 to 10 kt. Seas 4 to 5 ft. Wave Detail: W 5 ft at
8 seconds and SW 2 ft at 14 seconds. Rain likely.
.FRI NIGHT...S wind 5 to 10 kt. Seas around 5 ft. Wave Detail: W
5 ft at 9 seconds and SW 2 ft at 14 seconds. Rain likely.

$$

PZZ153-112245-
Coastal Waters From James Island To Point Grenville Out 10 Nm-
242 AM PDT Mon Aug 11 2025

.TODAY...N wind 5 to 10 kt, becoming NW 15 to 20 kt late. Seas
7 to 9 ft. Wave Detail: W 8 ft at 11 seconds and SW 2 ft at
18 seconds. Widespread dense fog early this morning, then areas
of dense fog late this morning.
.TONIGHT...NW wind 15 to 20 kt, becoming N 5 to 10 kt after
midnight. Seas 6 to 8 ft. Wave Detail: W 7 ft at 11 seconds and
SW 2 ft at 17 seconds.
.TUE...NW wind 5 to 10 kt, rising to 10 to 15 kt in the
afternoon. Seas 6 to 8 ft. Wave Detail: W 7 ft at 10 seconds and
SW 2 ft at 17 seconds.
.TUE NIGHT...NW wind 15 to 20 kt, easing to 10 to 15 kt after
midnight. Seas 6 to 8 ft. Wave Detail: W 8 ft at 10 seconds and
SW 2 ft at 17 seconds.
.WED...NW wind 5 to 10 kt. Seas 5 to 8 ft. Wave Detail: W 7 ft at
9 seconds and SW 2 ft at 16 seconds.
.WED NIGHT...NW wind 5 to 10 kt. Seas 5 to 6 ft. Wave Detail: W
5 ft at 8 seconds and SW 2 ft at 15 seconds. A chance of rain
after midnight.
.THU...SW wind around 5 kt. Seas 4 to 5 ft. Wave Detail: W 4 ft
at 8 seconds and SW 2 ft at 15 seconds. A chance of rain.
.THU NIGHT...S wind around 5 kt. Seas 3 to 4 ft. Wave Detail: W
4 ft at 9 seconds and SW 2 ft at 15 seconds. A chance of rain.
.FRI...S wind 5 to 10 kt. Seas 4 to 5 ft. Wave Detail: W 5 ft at
8 seconds and SW 2 ft at 14 seconds. Rain likely.
.FRI NIGHT...S wind 5 to 10 kt. Seas 5 to 6 ft. Wave Detail: W
5 ft at 9 seconds and SW 2 ft at 14 seconds. Rain likely.

$$

PZZ156-112245-
Coastal Waters From Point Grenville To Cape Shoalwater Out 10 Nm-
242 AM PDT Mon Aug 11 2025

.TODAY...N wind 5 to 10 kt, becoming NW 10 to 15 kt late. Seas
7 to 9 ft. Wave Detail: W 8 ft at 10 seconds and SW 2 ft at
18 seconds. Widespread dense fog early this morning, then areas
of dense fog late this morning.
.TONIGHT...NW wind 10 to 15 kt, becoming N 5 to 10 kt after
midnight. Seas 6 to 8 ft. Wave Detail: W 7 ft at 10 seconds and
SW 2 ft at 17 seconds.
.TUE...N wind around 5 kt, becoming NW 10 to 15 kt in the
afternoon. Seas 6 to 8 ft. Wave Detail: W 7 ft at 10 seconds and
SW 2 ft at 17 seconds.
.TUE NIGHT...NW wind 15 to 20 kt, easing to 10 to 15 kt after
midnight. Seas 6 to 8 ft. Wave Detail: W 8 ft at 10 seconds and
SW 2 ft at 17 seconds.
.WED...NW wind 10 to 15 kt. Seas 5 to 8 ft. Wave Detail: W 7 ft
at 9 seconds and SW 2 ft at 16 seconds.
.WED NIGHT...NW wind 5 to 10 kt. Seas 4 to 6 ft. Wave Detail: W
5 ft at 8 seconds and SW 2 ft at 15 seconds. A chance of rain
after midnight.
.THU...SW wind around 5 kt. Seas 4 to 5 ft. Wave Detail: W 4 ft
at 8 seconds and SW 2 ft at 15 seconds. A chance of rain in the
morning.
.THU NIGHT...SW wind 5 to 10 kt. Seas 3 to 4 ft. Wave Detail: W
4 ft at 8 seconds and SW 2 ft at 15 seconds. A chance of rain
after midnight.
.FRI...S wind 5 to 10 kt. Seas 4 to 6 ft. Wave Detail: W 5 ft at
8 seconds and SW 2 ft at 14 seconds. Rain likely.
.FRI NIGHT...S wind 5 to 10 kt. Seas 5 to 6 ft. Wave Detail: W
5 ft at 9 seconds and SW 2 ft at 14 seconds. Rain likely.

$$

PZZ170-112245-
Coastal Waters From Cape Flattery To James Island 10 To 60 Nm-
242 AM PDT Mon Aug 11 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TUESDAY NIGHT...

.TODAY...N wind 15 to 25 kt. Seas 9 to 12 ft, subsiding to 8 to
10 ft this afternoon. Wave Detail: W 11 ft at 11 seconds and SW 2
ft at 17 seconds. Widespread dense fog early this morning. Areas
of dense fog late this morning.
.TONIGHT...NW wind 15 to 20 kt. Seas 8 to 10 ft. Wave Detail: W
9 ft at 10 seconds and SW 2 ft at 17 seconds.
.TUE...NW wind 20 to 25 kt. Seas 8 to 10 ft. Wave Detail: NW 10
ft at 10 seconds and SW 3 ft at 17 seconds.
.TUE NIGHT...NW wind 20 to 25 kt. Seas 8 to 11 ft. Wave Detail:
NW 10 ft at 9 seconds and SW 3 ft at 17 seconds.
.WED...NW wind 15 to 20 kt, becoming W 10 to 15 kt in the
afternoon. Seas 6 to 9 ft. Wave Detail: NW 8 ft at 8 seconds and
SW 3 ft at 16 seconds.
.WED NIGHT...W wind 10 to 15 kt, easing to 5 to 10 kt after
midnight. Seas 5 to 7 ft. Wave Detail: W 6 ft at 8 seconds and SW
3 ft at 15 seconds.
.THU...SW wind 5 to 10 kt. Seas 4 to 5 ft. Wave Detail: W 4 ft at
9 seconds and SW 3 ft at 15 seconds. A chance of rain in the
afternoon.
.THU NIGHT...S wind 5 to 10 kt. Seas 4 to 5 ft. Wave Detail: W
5 ft at 8 seconds and SW 3 ft at 15 seconds. A chance of rain.
.FRI...S wind around 10 kt. Seas 5 to 6 ft. Wave Detail: W 5 ft
at 8 seconds and SW 3 ft at 14 seconds. Rain likely.
.FRI NIGHT...S wind around 10 kt. Seas around 6 ft. Wave Detail:
W 5 ft at 9 seconds and SW 2 ft at 14 seconds. Rain likely.

$$

PZZ173-112245-
Coastal Waters From James Island To Point Grenville 10 To 60 Nm-
242 AM PDT Mon Aug 11 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TUESDAY NIGHT...

.TODAY...N wind 20 to 25 kt easing to 15 to 20 kt late this
morning and afternoon. Seas 9 to 12 ft. Wave Detail: NW 12 ft at
10 seconds and SW 2 ft at 17 seconds. Areas of dense fog this
morning.
.TONIGHT...NW wind 15 to 20 kt. Seas 8 to 10 ft. Wave Detail: NW
10 ft at 10 seconds and SW 2 ft at 17 seconds.
.TUE...NW wind 15 to 20 kt, rising to 20 to 25 kt in the
afternoon. Seas 8 to 11 ft. Wave Detail: NW 10 ft at 10 seconds
and SW 3 ft at 17 seconds.
.TUE NIGHT...NW wind 20 to 25 kt. Seas 9 to 11 ft. Wave Detail:
NW 11 ft at 9 seconds and SW 3 ft at 17 seconds.
.WED...NW wind 20 to 25 kt, easing to 10 to 15 kt in the
afternoon. Seas 8 to 10 ft, subsiding to 7 to 8 ft in the
afternoon. Wave Detail: NW 9 ft at 8 seconds and SW 3 ft at
16 seconds.
.WED NIGHT...NW wind 10 to 15 kt, easing to 5 to 10 kt after
midnight. Seas 6 to 7 ft. Wave Detail: W 6 ft at 8 seconds and SW
3 ft at 15 seconds. A chance of rain after midnight.
.THU...SW wind 5 to 10 kt. Seas 4 to 6 ft. Wave Detail: W 5 ft at
9 seconds and SW 3 ft at 15 seconds. A chance of rain.
.THU NIGHT...S wind 5 to 10 kt. Seas 4 to 6 ft. Wave Detail: W
5 ft at 8 seconds and SW 3 ft at 15 seconds. A chance of rain.
.FRI...SW wind around 10 kt. Seas 5 to 6 ft. Wave Detail: W 5 ft
at 8 seconds and SW 3 ft at 14 seconds. Rain likely.
.FRI NIGHT...SW wind around 10 kt. Seas around 6 ft. Wave Detail:
W 5 ft at 9 seconds and SW 2 ft at 14 seconds. Rain likely,
mainly in the evening.

$$

PZZ176-112245-
Coastal Waters From Point Grenville To Cape Shoalwater 10 To
60 Nm-
242 AM PDT Mon Aug 11 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TUESDAY NIGHT...

.TODAY...N wind 15 to 20 kt. Seas 9 to 11 ft. Wave Detail:
NW 11 ft at 10 seconds and SW 2 ft at 17 seconds. Widespread
dense fog early this morning, then areas of dense fog late this
morning.
.TONIGHT...NW wind 15 to 20 kt. Seas 8 to 9 ft. Wave Detail: NW
10 ft at 10 seconds and SW 2 ft at 17 seconds.
.TUE...NW wind 15 to 20 kt. Seas 8 to 10 ft. Wave Detail: NW 10
ft at 10 seconds and SW 3 ft at 17 seconds.
.TUE NIGHT...NW wind 15 to 20 kt. Seas 8 to 10 ft. Wave Detail:
NW 10 ft at 10 seconds and SW 3 ft at 17 seconds.
.WED...NW wind 15 to 20 kt, easing to 10 to 15 kt in the
afternoon. Seas 7 to 9 ft. Wave Detail: NW 8 ft at 9 seconds and
SW 3 ft at 16 seconds.
.WED NIGHT...NW wind 10 to 15 kt. Seas 6 to 7 ft. Wave Detail: NW
6 ft at 8 seconds and SW 3 ft at 15 seconds. A chance of rain
after midnight.
.THU...SW wind 5 to 10 kt. Seas 4 to 6 ft. Wave Detail: NW 5 ft
at 8 seconds and SW 3 ft at 15 seconds. A chance of rain in the
afternoon.
.THU NIGHT...SW wind 5 to 10 kt. Seas 4 to 6 ft. Wave Detail: W
5 ft at 8 seconds and SW 3 ft at 15 seconds. A chance of rain.
.FRI...SW wind around 10 kt. Seas 5 to 6 ft. Wave Detail: W 6 ft
at 8 seconds and SW 3 ft at 14 seconds. Rain likely.
.FRI NIGHT...SW wind around 10 kt. Seas around 6 ft. Wave Detail:
W 6 ft at 9 seconds and SW 2 ft at 14 seconds. Rain likely,
mainly in the evening.

$$

PZZ130-112245-
West Entrance U.S. Waters Strait Of Juan De Fuca-
242 AM PDT Mon Aug 11 2025

.TODAY...SE wind 5 to 15 kt, backing to NW late. Seas 4 to 6 ft.
Wave Detail: W 7 ft at 10 seconds. Widespread dense fog early this
morning, then patchy fog late this morning.
.TONIGHT...NW wind 5 to 15 kt. Seas 4 to 6 ft. Wave Detail: W 7
ft at 11 seconds.
.TUE...E wind around 5 kt, backing to NW 10 to 15 kt in the
afternoon. Seas 4 to 6 ft. Wave Detail: W 6 ft at 10 seconds.
.TUE NIGHT...W wind 15 to 20 kt, easing to 5 to 10 kt after
midnight. Seas 4 to 6 ft. Wave Detail: W 6 ft at 9 seconds.
.WED...W wind 5 to 10 kt. Seas 3 to 5 ft. Wave Detail: W 5 ft at
9 seconds.
.WED NIGHT...W wind 5 to 10 kt. Seas 3 to 5 ft. Wave Detail: W
5 ft at 8 seconds.
.THU...SW wind 5 to 10 kt. Seas 3 to 4 ft. Wave Detail: W 3 ft at
8 seconds. A chance of rain.
.THU NIGHT...SW wind 5 to 10 kt, backing to S after midnight.
Seas around 3 ft. Wave Detail: W 3 ft at 9 seconds. A chance of
rain.
.FRI...SE wind 5 to 10 kt. Seas 3 to 4 ft. Wave Detail: W 4 ft at
8 seconds. Rain likely.
.FRI NIGHT...S wind 5 to 10 kt. Seas 3 to 4 ft. Wave Detail: SW
4 ft at 9 seconds. Rain.

$$

PZZ131-112245-
Central U.S. Waters Strait Of Juan De Fuca-
242 AM PDT Mon Aug 11 2025

.TODAY...E wind 5 to 10 kt. Waves around 3 ft. Areas of dense fog
early this morning.
.TONIGHT...W wind 5 to 10 kt. Waves around 3 ft.
.TUE...NE wind 5 to 10 kt, backing to W in the afternoon. Waves
around 3 ft.
.TUE NIGHT...W wind 20 to 25 kt. Waves 4 to 6 ft.
.WED...W wind 10 to 15 kt. Waves around 3 ft.
.WED NIGHT...W wind 15 to 20 kt. Waves 3 to 5 ft.
.THU...W wind 5 to 10 kt, rising to 10 to 15 kt in the afternoon.
Waves around 3 ft in the morning, then around 2 ft or less.
.THU NIGHT...W wind 10 to 15 kt, easing to 5 to 10 kt after
midnight. Waves around 3 ft. A chance of rain after midnight.
.FRI...SE wind 5 to 10 kt. Waves around 2 ft or less. Rain
likely.
.FRI NIGHT...SW wind 5 to 10 kt. Waves around 2 ft or less. Rain
likely.

$$

PZZ132-112245-
East Entrance U.S. Waters Strait Of Juan De Fuca-
242 AM PDT Mon Aug 11 2025

.TODAY...NW wind 5 to 10 kt. Waves around 2 ft or less. Areas of
dense fog early this morning.
.TONIGHT...W wind 10 to 15 kt, becoming NW around 5 kt after
midnight. Waves around 2 ft or less.
.TUE...NE wind around 5 kt, veering to S in the afternoon. Waves
around 2 ft or less.
.TUE NIGHT...W wind 20 to 25 kt. Waves 3 to 4 ft, building to
4 to 6 ft after midnight.
.WED...SW wind 5 to 10 kt. Waves around 3 ft in the morning, then
around 2 ft or less.
.WED NIGHT...W wind 15 to 20 kt, easing to 10 to 15 kt after
midnight. Waves 3 to 4 ft.
.THU...S wind 5 to 10 kt. Waves around 2 ft or less.
.THU NIGHT...SW wind 5 to 10 kt. Waves around 2 ft or less. A
chance of rain after midnight.
.FRI...S wind 5 to 10 kt. Waves around 2 ft or less. A chance of
rain in the morning, then rain likely in the afternoon.
.FRI NIGHT...S wind 5 to 10 kt. Waves around 2 ft or less. Rain
likely.

$$

PZZ134-112245-
Admiralty Inlet-
242 AM PDT Mon Aug 11 2025

.TODAY...NW wind 10 to 15 kt, easing to 5 to 10 kt this
afternoon. Waves around 2 ft or less.
.TONIGHT...NW wind 5 to 15 kt. Waves around 2 ft or less.
.TUE...N wind 5 to 10 kt. Waves around 2 ft or less.
.TUE NIGHT...NW wind 10 to 20 kt. Waves 2 or 3 ft.
.WED...SW wind 5 to 10 kt. Waves around 2 ft or less.
.WED NIGHT...NW wind 5 to 10 kt. Waves around 2 ft or less.
.THU...SE wind around 5 kt. Waves around 2 ft or less.
.THU NIGHT...NW wind around 5 kt, backing to S after midnight.
Waves around 2 ft or less. A chance of rain after midnight.
.FRI...SE wind 5 to 10 kt. Waves around 2 ft or less. A chance of
rain in the morning, then rain likely in the afternoon.
.FRI NIGHT...S wind 5 to 10 kt. Waves around 2 ft or less. Rain
likely.

$$

PZZ133-112245-
Northern Inland Waters Including The San Juan Islands-
242 AM PDT Mon Aug 11 2025

.TODAY...NW wind 10 to 15 kt, easing to 5 to 10 kt late. Waves
around 2 ft or less.
.TONIGHT...NW wind 5 to 10 kt. Waves around 2 ft or less.
.TUE...NW wind 5 to 10 kt. Waves around 2 ft or less.
.TUE NIGHT...SW wind 5 to 10 kt. Waves around 2 ft or less.
.WED...SW wind 5 to 10 kt. Waves around 2 ft or less.
.WED NIGHT...SW wind 5 to 10 kt. Waves around 2 ft or less.
.THU...S wind 5 to 10 kt. Waves around 2 ft or less.
.THU NIGHT...S wind around 5 kt. Waves around 2 ft or less. A
chance of rain after midnight.
.FRI...SE wind 5 to 10 kt. Waves around 2 ft or less. A chance of
rain in the morning, then rain likely in the afternoon.
.FRI NIGHT...S wind 5 to 10 kt. Waves around 2 ft or less. Rain
likely.

$$

PZZ135-112245-
Puget Sound and Hood Canal-
242 AM PDT Mon Aug 11 2025

.TODAY...N wind 5 to 10 kt. Waves 1 ft or less.
.TONIGHT...N wind 5 to 10 kt. Waves 1 ft or less.
.TUE...N wind 5 to 10 kt. Waves 1 ft or less.
.TUE NIGHT...N wind 5 to 10 kt backing to W after midnight. Waves
1 ft or less.
.WED...S wind 5 to 10 kt. Waves 1 ft or less.
.WED NIGHT...SW wind 5 to 10 kt. Waves 1 ft or less.
.THU...S wind 5 to 10 kt. Waves 1 ft or less.
.THU NIGHT...W wind 5 to 10 kt, backing to S after midnight.
Waves 1 ft or less. A chance of rain after midnight.
.FRI...S wind 5 to 10 kt. Waves 1 ft or less. A chance of rain in
the morning, then rain likely in the afternoon.
.FRI NIGHT...S wind 5 to 10 kt. Waves 1 ft or less. Rain likely.

$$

PZZ110-112245-
Grays Harbor Bar-
242 AM PDT Mon Aug 11 2025

Combined seas 6 to 8 feet. Bar conditions moderate. Maximum ebb
currents will occur around 630 AM and 700 PM today and 700 AM
Tuesday. The morning ebbs will be strong.

$$