Coastal Waters Forecast
Issued by NWS Seattle/Tacoma, WA

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019
FZUS56 KSEW 202148
CWFSEW

Coastal Waters Forecast for Washington
National Weather Service Seattle WA
248 PM PDT Thu Aug 20 2026

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

PZZ100-211100-
248 PM PDT Thu Aug 20 2026

.SYNOPSIS FOR THE NORTHERN AND CENTRAL WASHINGTON COASTAL AND
INLAND WATERS...Broad high pressure over the waters will weaken
Friday. A weak surface low will move into the coastal waters
Saturday with the associated front moving through the inland
waters Saturday morning. The low will dissipate Saturday night.
High pressure will rebuild Sunday and remain over the area through
Monday. A frontal system will pass over the waters on Tuesday.

$$

PZZ150-211100-
Coastal Waters From Cape Flattery To James Island Out 10 Nm-
248 PM PDT Thu Aug 20 2026

.TONIGHT...NW wind around 5 kt. Seas 4 to 5 ft. Wave Detail: W
4 ft at 11 seconds.
.FRI...S wind around 5 kt. Seas around 4 ft. Wave Detail: W 4 ft
at 9 seconds.
.FRI NIGHT...S wind 5 to 10 kt. Seas 3 to 4 ft. Wave Detail: W
4 ft at 9 seconds. A chance of showers after midnight.
.SAT...S wind 5 to 10 kt, rising to 10 to 15 kt in the afternoon.
Seas 3 to 4 ft. Wave Detail: SW 3 ft at 8 seconds and S 3 ft at
9 seconds. A chance of showers.
.SAT NIGHT...S wind 5 to 10 kt. Seas 3 to 4 ft. Wave Detail: S
3 ft at 8 seconds and W 3 ft at 8 seconds. A chance of showers in
the evening.
.SUN...SW wind around 5 kt. Seas around 3 ft. Wave Detail: W 3 ft
at 8 seconds and S 2 ft at 10 seconds.
.SUN NIGHT...NW wind around 5 kt. Seas around 3 ft. Wave Detail:
W 3 ft at 8 seconds.
.MON...N wind 5 to 10 kt. Seas around 3 ft. Wave Detail: NW 3 ft
at 7 seconds.
.MON NIGHT...NW wind 5 to 10 kt. Seas 3 to 4 ft. Wave Detail: NW
4 ft at 5 seconds.
.TUE...W wind around 5 kt. Seas 3 to 4 ft. Wave Detail: W 3 ft at
7 seconds and SW 2 ft at 17 seconds.
.TUE NIGHT...NW wind 5 to 10 kt. Seas 3 to 5 ft. Wave Detail: W
4 ft at 6 seconds and SW 2 ft at 16 seconds.

$$

PZZ153-211100-
Coastal Waters From James Island To Point Grenville Out 10 Nm-
248 PM PDT Thu Aug 20 2026

.TONIGHT...NW wind around 5 kt. Seas 4 to 5 ft. Wave Detail: W
5 ft at 10 seconds.
.FRI...S wind around 5 kt. Seas 4 to 5 ft. Wave Detail: W 4 ft at
9 seconds.
.FRI NIGHT...S wind 5 to 10 kt. Seas 3 to 4 ft. Wave Detail: W
4 ft at 9 seconds. A chance of showers after midnight.
.SAT...S wind 10 to 15 kt. Seas 3 to 4 ft. Wave Detail: S 3 ft at
7 seconds and W 4 ft at 8 seconds. A chance of showers.
.SAT NIGHT...S wind 5 to 10 kt. Seas 3 to 4 ft. Wave Detail: S
3 ft at 8 seconds and W 3 ft at 8 seconds.
.SUN...SW wind around 5 kt, veering to W in the afternoon. Seas
3 to 4 ft. Wave Detail: W 3 ft at 7 seconds and S 2 ft at
10 seconds.
.SUN NIGHT...NW wind 5 to 10 kt. Seas 3 to 4 ft. Wave Detail: W
4 ft at 8 seconds.
.MON...N wind 5 to 10 kt. Seas 3 to 4 ft. Wave Detail: NW 4 ft at
6 seconds.
.MON NIGHT...NW wind 10 to 15 kt, easing to 5 to 10 kt after
midnight. Seas 3 to 5 ft. Wave Detail: NW 5 ft at 5 seconds.
.TUE...NW wind 5 to 10 kt. Seas 3 to 4 ft. Wave Detail: W 3 ft at
7 seconds and SW 2 ft at 17 seconds.
.TUE NIGHT...NW wind 5 to 10 kt. Seas 3 to 4 ft. Wave Detail: W
4 ft at 6 seconds and SW 2 ft at 16 seconds.

$$

PZZ156-211100-
Coastal Waters From Point Grenville To Cape Shoalwater Out 10 Nm-
248 PM PDT Thu Aug 20 2026

.TONIGHT...NW wind around 5 kt. Seas 4 to 5 ft. Wave Detail: W
4 ft at 9 seconds.
.FRI...S wind around 5 kt, veering to SW in the afternoon. Seas
3 to 4 ft. Wave Detail: W 4 ft at 9 seconds.
.FRI NIGHT...S wind 5 to 10 kt. Seas 3 to 4 ft. Wave Detail: W
4 ft at 8 seconds and SW 2 ft at 14 seconds. A chance of showers
after midnight.
.SAT...S wind 10 to 15 kt, rising to 15 to 20 kt in the
afternoon. Seas 3 to 5 ft. Wave Detail: SW 4 ft at 7 seconds. A
chance of showers in the morning.
.SAT NIGHT...S wind 10 to 15 kt, easing to 5 to 10 kt after
midnight. Seas 4 to 6 ft, subsiding to 3 to 4 ft after midnight.
Wave Detail: S 4 ft at 7 seconds and W 3 ft at 8 seconds.
.SUN...SW wind 5 to 10 kt, veering to W in the afternoon. Seas
3 to 4 ft. Wave Detail: W 3 ft at 7 seconds and SW 2 ft at
14 seconds.
.SUN NIGHT...NW wind 10 to 15 kt. Seas 3 to 5 ft. Wave Detail: NW
4 ft at 7 seconds.
.MON...N wind 5 to 10 kt, becoming NW 10 to 15 kt in the
afternoon. Seas 3 to 4 ft. Wave Detail: NW 4 ft at 6 seconds.
.MON NIGHT...NW wind 10 to 15 kt. Seas 3 to 5 ft. Wave Detail: N
5 ft at 5 seconds.
.TUE...NW wind 5 to 10 kt. Seas 3 to 4 ft. Wave Detail: NW 4 ft
at 6 seconds and SW 2 ft at 17 seconds.
.TUE NIGHT...NW wind 10 to 15 kt. Seas 4 to 5 ft. Wave Detail: N
4 ft at 6 seconds and SW 2 ft at 16 seconds.

$$

PZZ170-211100-
Coastal Waters From Cape Flattery To James Island 10 To 60 Nm-
248 PM PDT Thu Aug 20 2026

.TONIGHT...NW wind around 5 kt. Seas 4 to 5 ft. Wave Detail: W
5 ft at 9 seconds and S 2 ft at 15 seconds.
.FRI...S wind around 5 kt. Seas 4 to 5 ft. Wave Detail: NW 5 ft
at 9 seconds and S 2 ft at 15 seconds.
.FRI NIGHT...S wind around 5 kt. Seas 4 to 5 ft. Wave Detail: W
4 ft at 8 seconds and S 2 ft at 14 seconds.
.SAT...S wind 5 to 10 kt. Seas around 4 ft. Wave Detail: W 4 ft
at 8 seconds and SE 3 ft at 9 seconds. A chance of showers.
.SAT NIGHT...S wind 5 to 10 kt, veering to SW after midnight.
Seas around 4 ft. Wave Detail: W 4 ft at 8 seconds and S 3 ft at
9 seconds.
.SUN...W wind around 5 kt. Seas 3 to 4 ft. Wave Detail: W 3 ft at
8 seconds and S 2 ft at 10 seconds.
.SUN NIGHT...NW wind 5 to 10 kt. Seas 3 to 4 ft. Wave Detail: NW
4 ft at 8 seconds and S 2 ft at 13 seconds.
.MON...N wind 5 to 10 kt. Seas 3 to 4 ft. Wave Detail: NW 4 ft at
7 seconds and S 2 ft at 16 seconds.
.MON NIGHT...NW wind 10 to 15 kt, easing to 5 to 10 kt after
midnight. Seas 4 to 5 ft. Wave Detail: NW 5 ft at 5 seconds and S
2 ft at 16 seconds.
.TUE...NW wind 5 to 10 kt. Seas 4 to 5 ft. Wave Detail: NW 4 ft
at 7 seconds and S 2 ft at 16 seconds.
.TUE NIGHT...NW wind 5 to 10 kt. Seas 4 to 5 ft. Wave Detail: NW
5 ft at 6 seconds and SW 2 ft at 15 seconds.

$$

PZZ173-211100-
Coastal Waters From James Island To Point Grenville 10 To 60 Nm-
248 PM PDT Thu Aug 20 2026

.TONIGHT...NW wind 5 to 10 kt. Seas 5 to 6 ft. Wave Detail: W
5 ft at 9 seconds and SW 2 ft at 15 seconds.
.FRI...SW wind around 5 kt. Seas around 5 ft. Wave Detail: NW
5 ft at 9 seconds and S 2 ft at 15 seconds.
.FRI NIGHT...S wind 5 to 10 kt. Seas 4 to 5 ft. Wave Detail: NW
4 ft at 9 seconds and SW 2 ft at 14 seconds.
.SAT...S wind 5 to 10 kt. Seas 4 to 5 ft. Wave Detail: NW 4 ft at
8 seconds and SE 3 ft at 9 seconds. A chance of showers.
.SAT NIGHT...S wind 5 to 10 kt, veering to W after midnight. Seas
4 to 5 ft. Wave Detail: W 4 ft at 8 seconds and SE 3 ft at
9 seconds.
.SUN...NW wind 5 to 10 kt. Seas 3 to 4 ft. Wave Detail: W 4 ft at
7 seconds and S 2 ft at 10 seconds.
.SUN NIGHT...NW wind 5 to 10 kt. Seas 3 to 4 ft. Wave Detail: NW
4 ft at 7 seconds and S 2 ft at 14 seconds.
.MON...N wind 10 to 15 kt. Seas 4 to 5 ft. Wave Detail: N 4 ft at
6 seconds and S 2 ft at 16 seconds.
.MON NIGHT...NW wind 10 to 15 kt. Seas 4 to 5 ft. Wave Detail: NW
5 ft at 6 seconds and S 2 ft at 16 seconds.
.TUE...NW wind 5 to 10 kt. Seas 4 to 5 ft. Wave Detail: NW 5 ft
at 6 seconds and S 2 ft at 16 seconds.
.TUE NIGHT...NW wind around 10 kt. Seas 4 to 6 ft. Wave Detail:
NW 5 ft at 6 seconds and SW 2 ft at 15 seconds.

$$

PZZ176-211100-
Coastal Waters From Point Grenville To Cape Shoalwater 10 To
60 Nm-
248 PM PDT Thu Aug 20 2026

.TONIGHT...NW wind 5 to 10 kt. Seas 5 to 6 ft. Wave Detail: NW
5 ft at 9 seconds and SW 2 ft at 15 seconds.
.FRI...SW wind around 5 kt. Seas 4 to 5 ft. Wave Detail: NW 5 ft
at 8 seconds and SW 2 ft at 15 seconds.
.FRI NIGHT...S wind 5 to 10 kt. Seas 4 to 5 ft. Wave Detail: NW
4 ft at 8 seconds and S 2 ft at 14 seconds.
.SAT...S wind 10 to 15 kt. Seas 4 to 5 ft. Wave Detail: SE 4 ft
at 7 seconds and NW 4 ft at 8 seconds. A chance of showers in the
morning.
.SAT NIGHT...SW wind 5 to 10 kt, veering to W after midnight.
Seas 4 to 5 ft. Wave Detail: NW 4 ft at 8 seconds and SE 4 ft at
8 seconds.
.SUN...NW wind 5 to 10 kt. Seas 3 to 4 ft. Wave Detail: W 4 ft at
7 seconds and S 2 ft at 11 seconds.
.SUN NIGHT...N wind 10 to 15 kt. Seas 3 to 5 ft. Wave Detail: N
5 ft at 5 seconds and SW 2 ft at 14 seconds.
.MON...N wind 10 to 15 kt. Seas 4 to 5 ft. Wave Detail: NW 5 ft
at 6 seconds and SW 2 ft at 16 seconds.
.MON NIGHT...NW wind 10 to 15 kt. Seas 5 to 6 ft. Wave Detail: NW
6 ft at 6 seconds and SW 2 ft at 16 seconds.
.TUE...NW wind 5 to 10 kt. Seas 4 to 5 ft. Wave Detail: NW 5 ft
at 6 seconds and S 2 ft at 16 seconds.
.TUE NIGHT...NW wind around 10 kt. Seas 5 to 6 ft. Wave Detail:
NW 5 ft at 6 seconds and SW 2 ft at 15 seconds.

$$

PZZ130-211100-
West Entrance U.S. Waters Strait Of Juan De Fuca-
248 PM PDT Thu Aug 20 2026

.TONIGHT...W wind around 5 kt. Seas 3 to 4 ft. Wave Detail: W
4 ft at 10 seconds.
.FRI...W wind around 5 kt. Seas 3 to 4 ft. Wave Detail: W 3 ft at
9 seconds.
.FRI NIGHT...W wind 5 to 10 kt. Seas around 3 ft. Wave Detail: W
3 ft at 8 seconds. A chance of showers after midnight.
.SAT...W wind 5 to 10 kt. Seas around 3 ft. Wave Detail: W 3 ft
at 8 seconds. A chance of showers in the morning, then showers
likely in the afternoon.
.SAT NIGHT...W wind 5 to 10 kt. Seas around 3 ft. Wave Detail: W
3 ft at 7 seconds. A chance of showers in the evening, then a
chance of rain after midnight.
.SUN...W wind around 5 kt. Seas around 3 ft in the morning, then
around 2 ft or less. Wave Detail: W 2 ft at 7 seconds.
.SUN NIGHT...W wind 5 to 10 kt. Seas around 2 ft or less. Wave
Detail: W 2 ft at 7 seconds.
.MON...E wind around 5 kt, backing to N in the afternoon. Seas
around 2 ft or less. Wave Detail: W 2 ft at 8 seconds.
.MON NIGHT...W wind 5 to 10 kt. Seas around 3 ft. Wave Detail: W
3 ft at 7 seconds.
.TUE...W wind 5 to 10 kt. Seas around 3 ft. Wave Detail: W 3 ft
at 7 seconds.
.TUE NIGHT...W wind 5 to 10 kt. Seas 3 to 4 ft. Wave Detail: W
3 ft at 6 seconds.

$$

PZZ131-211100-
Central U.S. Waters Strait Of Juan De Fuca-
248 PM PDT Thu Aug 20 2026

.TONIGHT...W wind around 5 kt. Waves around 2 ft or less.
.FRI...W wind 5 to 10 kt. Waves around 2 ft or less.
.FRI NIGHT...W wind 15 to 20 kt. Waves 3 to 4 ft. A chance of
showers after midnight.
.SAT...W wind 15 to 20 kt, easing to 10 to 15 kt in the
afternoon. Waves 3 to 4 ft. A chance of showers in the morning,
then showers likely in the afternoon.
.SAT NIGHT...W wind 10 to 15 kt. Waves around 3 ft. A chance of
showers in the evening.
.SUN...W wind 5 to 10 kt. Waves around 2 ft or less.
.SUN NIGHT...W wind 5 to 10 kt. Waves around 2 ft or less.
.MON...W wind around 5 kt, veering to NE around 5 kt in the
afternoon. Waves around 2 ft or less.
.MON NIGHT...W wind 5 to 10 kt. Waves around 2 ft or less.
.TUE...W wind 5 to 10 kt, rising to 10 to 15 kt in the afternoon.
Waves around 2 ft or less.
.TUE NIGHT...W wind 15 to 20 kt. Waves 3 to 4 ft.

$$

PZZ132-211100-
East Entrance U.S. Waters Strait Of Juan De Fuca-
248 PM PDT Thu Aug 20 2026

.TONIGHT...W wind around 5 kt. Waves around 2 ft or less.
.FRI...W wind around 5 kt. Waves around 2 ft or less.
.FRI NIGHT...W wind 5 to 10 kt, becoming SW 10 to 15 kt after
midnight. Waves around 2 ft or less, then around 3 ft after
midnight. A chance of showers after midnight.
.SAT...SW wind 10 to 15 kt, easing to 5 to 10 kt in the
afternoon. Waves around 3 ft. Showers likely.
.SAT NIGHT...SW wind 10 to 15 kt, easing to 5 to 10 kt after
midnight. Waves around 2 ft or less. Showers likely in the
evening, then a chance of rain after midnight.
.SUN...SW wind 5 to 10 kt. Waves around 2 ft or less.
.SUN NIGHT...W wind 5 to 10 kt. Waves around 2 ft or less.
.MON...NW wind 5 to 10 kt. Waves around 2 ft or less.
.MON NIGHT...W wind 5 to 10 kt. Waves around 2 ft or less.
.TUE...SW wind 5 to 10 kt. Waves around 2 ft or less.
.TUE NIGHT...W wind 10 to 15 kt. Waves around 3 ft.

$$

PZZ134-211100-
Admiralty Inlet-
248 PM PDT Thu Aug 20 2026

.TONIGHT...NW wind around 5 kt. Waves around 2 ft or less.
.FRI...NW wind 5 to 10 kt. Waves around 2 ft or less.
.FRI NIGHT...NW wind around 5 kt. Waves around 2 ft or less. A
chance of showers after midnight.
.SAT...S wind around 5 kt. Waves around 2 ft or less. Showers
likely.
.SAT NIGHT...W wind around 5 kt, backing to S after midnight.
Waves around 2 ft or less. A chance of showers in the evening,
then a chance of rain after midnight.
.SUN...S wind around 5 kt, veering to N in the afternoon. Waves
around 2 ft or less.
.SUN NIGHT...NW wind 5 to 10 kt. Waves around 2 ft or less.
.MON...NW wind 5 to 10 kt. Waves around 2 ft or less.
.MON NIGHT...NW wind 5 to 10 kt, becoming W after midnight. Waves
around 2 ft or less.
.TUE...S wind around 5 kt, veering to NW in the afternoon. Waves
around 2 ft or less.
.TUE NIGHT...W wind 5 to 10 kt. Waves around 2 ft or less.

$$

PZZ133-211100-
Northern Inland Waters Including The San Juan Islands-
248 PM PDT Thu Aug 20 2026

.TONIGHT...W wind around 5 kt early this evening, becoming light
and variable. Waves around 2 ft or less.
.FRI...NW wind around 5 kt. Waves around 2 ft or less.
.FRI NIGHT...S wind 5 to 10 kt. Waves around 2 ft or less. A
chance of showers after midnight.
.SAT...S wind 5 to 10 kt, rising to 10 to 15 kt in the afternoon.
Waves around 2 ft or less. Showers likely.
.SAT NIGHT...S wind 5 to 10 kt. Waves around 2 ft or less.
Showers likely in the evening, then a chance of rain after
midnight.
.SUN...S wind 5 to 10 kt. Waves around 2 ft or less.
.SUN NIGHT...SW wind around 5 kt, veering to N after midnight.
Waves around 2 ft or less.
.MON...N wind around 5 kt, backing to NW in the afternoon. Waves
around 2 ft or less.
.MON NIGHT...W wind around 5 kt, backing to S after midnight.
Waves around 2 ft or less.
.TUE...S wind around 5 kt. Waves around 2 ft or less.
.TUE NIGHT...S wind 5 to 10 kt. Waves around 2 ft or less.

$$

PZZ135-211100-
Puget Sound and Hood Canal-
248 PM PDT Thu Aug 20 2026

.TONIGHT...N wind 5 to 10 kt, easing to around 5 kt late this
evening and overnight. Waves around 2 ft or less.
.FRI...N wind around 5 kt. Waves around 2 ft or less.
.FRI NIGHT...W wind around 5 kt, backing to S after midnight.
Waves around 2 ft or less. A chance of showers after midnight.
.SAT...S wind 5 to 10 kt. Waves around 2 ft or less. A chance of
showers.
.SAT NIGHT...SW wind 5 to 10 kt. Waves around 2 ft or less. A
chance of showers in the evening, then a chance of rain after
midnight.
.SUN...S wind 5 to 10 kt. Waves around 2 ft or less.
.SUN NIGHT...N wind 5 to 10 kt. Waves around 2 ft or less.
.MON...N wind around 5 kt, rising to 5 to 10 kt in the afternoon.
Waves around 2 ft or less.
.MON NIGHT...N wind 5 to 10 kt, easing to around 5 kt after
midnight. Waves around 2 ft or less.
.TUE...Light and variable winds, becoming SW around 5 kt in the
afternoon. Waves around 2 ft or less.
.TUE NIGHT...NW wind 5 to 10 kt, becoming SW after midnight.
Waves around 2 ft or less.

$$

PZZ110-211100-
Grays Harbor Bar-
248 PM PDT Thu Aug 20 2026

Combined seas 2 to 4 ft. Bar conditions light. Maximum ebb
currents will occur around 1130 PM Thursday, 1200 PM Friday, and
1245 AM Saturday.

$$