Coastal Waters Forecast
Issued by NWS Seattle/Tacoma, WA

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619
FZUS56 KSEW 200926
CWFSEW

Coastal Waters Forecast for Washington
National Weather Service Seattle WA
226 AM PDT Wed Aug 20 2025

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

PZZ100-202230-
226 AM PDT Wed Aug 20 2025

.SYNOPSIS FOR THE NORTHERN AND CENTRAL WASHINGTON COASTAL AND INLAND
WATERS...A surface ridge building into the coastal and offshore
waters today will remain in place into late this week, but will
weaken as thermally induced low pressure expands northward along the
coast Thursday into the beginning of the weekend. The thermal trough
will shift inland by Sunday.

$$

PZZ150-202230-
Coastal Waters From Cape Flattery To James Island Out 10 Nm-
226 AM PDT Wed Aug 20 2025

.TODAY...NW wind 5 to 10 kt, rising to 10 to 15 kt late. Seas
3 to 4 ft. Wave Detail: W 3 ft at 8 seconds.
.TONIGHT...NW wind 10 to 15 kt, easing to 5 to 10 kt after
midnight. Seas 3 to 4 ft. Wave Detail: W 4 ft at 7 seconds and SW
2 ft at 15 seconds.
.THU...N wind around 5 kt, rising to 5 to 10 kt in the afternoon.
Seas 3 to 4 ft. Wave Detail: W 4 ft at 7 seconds and SW 2 ft at
15 seconds.
.THU NIGHT...N wind 5 to 10 kt. Seas 3 to 5 ft. Wave Detail: W
4 ft at 7 seconds and SW 2 ft at 15 seconds.
.FRI...N wind 5 to 10 kt. Seas 3 to 4 ft. Wave Detail: W 4 ft at
7 seconds.
.FRI NIGHT...NW wind 5 to 10 kt. Seas 3 to 5 ft. Wave Detail: W
4 ft at 7 seconds.
.SAT...NW wind 5 to 10 kt. Seas 4 to 5 ft. Wave Detail: W 4 ft at
7 seconds.
.SAT NIGHT...NW wind 5 to 10 kt. Seas 4 to 5 ft. Wave Detail: W
5 ft at 7 seconds.
.SUN...NW wind around 5 kt. Seas around 5 ft. Wave Detail: W 5 ft
at 8 seconds.
.SUN NIGHT...NW wind 5 to 10 kt. Seas 4 to 5 ft. Wave Detail: W
5 ft at 8 seconds.

$$

PZZ153-202230-
Coastal Waters From James Island To Point Grenville Out 10 Nm-
226 AM PDT Wed Aug 20 2025

.TODAY...NW wind 5 to 10 kt, rising to 10 to 15 kt late. Seas
3 to 4 ft. Wave Detail: W 4 ft at 8 seconds.
.TONIGHT...N wind 10 to 15 kt. Seas 3 to 5 ft. Wave Detail: NW
4 ft at 7 seconds.
.THU...N wind 5 to 10 kt. Seas 3 to 4 ft. Wave Detail: W 4 ft at
7 seconds.
.THU NIGHT...NW wind 10 to 15 kt, becoming N 5 to 10 kt after
midnight. Seas 4 to 6 ft. Wave Detail: NW 5 ft at 6 seconds and W
3 ft at 9 seconds.
.FRI...N wind 5 to 10 kt. Seas 3 to 4 ft. Wave Detail: W 4 ft at
7 seconds.
.FRI NIGHT...NW wind 10 to 15 kt. Seas 4 to 6 ft. Wave Detail: NW
5 ft at 6 seconds.
.SAT...NW wind 5 to 10 kt. Seas 4 to 5 ft. Wave Detail: W 5 ft at
7 seconds.
.SAT NIGHT...NW wind 5 to 10 kt. Seas 4 to 6 ft. Wave Detail: W
5 ft at 7 seconds.
.SUN...NW wind 5 to 10 kt. Seas 4 to 5 ft. Wave Detail: W 5 ft at
8 seconds.
.SUN NIGHT...NW wind 5 to 10 kt. Seas 4 to 5 ft. Wave Detail: W
5 ft at 8 seconds.

$$

PZZ156-202230-
Coastal Waters From Point Grenville To Cape Shoalwater Out 10 Nm-
226 AM PDT Wed Aug 20 2025

.TODAY...NW wind 10 to 15 kt. Seas 3 to 5 ft. Wave Detail: NW
4 ft at 8 seconds.
.TONIGHT...N wind 15 to 20 kt. Seas 4 to 6 ft. Wave Detail: NW
5 ft at 7 seconds.
.THU...N wind 5 to 10 kt. Seas 3 to 4 ft. Wave Detail: NW 4 ft at
8 seconds.
.THU NIGHT...N wind 10 to 15 kt. Seas 4 to 6 ft. Wave Detail: NW
6 ft at 7 seconds and W 3 ft at 10 seconds.
.FRI...N wind 5 to 10 kt. Seas 3 to 4 ft. Wave Detail: NW 4 ft at
7 seconds.
.FRI NIGHT...NW wind 10 to 15 kt. Seas 3 to 5 ft, building to
5 to 6 ft after midnight. Wave Detail: NW 6 ft at 7 seconds.
.SAT...NW wind 5 to 10 kt. Seas 4 to 5 ft. Wave Detail: W 5 ft at
7 seconds.
.SAT NIGHT...NW wind 10 to 15 kt. Seas 4 to 6 ft. Wave Detail: NW
6 ft at 7 seconds.
.SUN...NW wind 5 to 10 kt. Seas 4 to 6 ft. Wave Detail: W 5 ft at
8 seconds.
.SUN NIGHT...NW wind around 10 kt. Seas 5 to 7 ft. Wave Detail:
NW 6 ft at 8 seconds.

$$

PZZ170-202230-
Coastal Waters From Cape Flattery To James Island 10 To 60 Nm-
226 AM PDT Wed Aug 20 2025

.TODAY...NW wind 5 to 10 kt. Seas 4 to 5 ft. Wave Detail: NW 5 ft
at 7 seconds and SW 2 ft at 15 seconds.
.TONIGHT...NW wind 10 to 15 kt. Seas 4 to 5 ft. Wave Detail: NW
5 ft at 7 seconds and SW 2 ft at 15 seconds.
.THU...N wind 5 to 10 kt. Seas 4 to 5 ft. Wave Detail: NW 5 ft at
7 seconds and SW 2 ft at 15 seconds.
.THU NIGHT...NW wind 10 to 15 kt. Seas 4 to 6 ft. Wave Detail: NW
5 ft at 5 seconds, W 3 ft at 9 seconds and SW 2 ft at 15 seconds.
.FRI...N wind 10 to 15 kt. Seas 4 to 5 ft. Wave Detail: NW 5 ft
at 6 seconds, W 3 ft at 9 seconds and SW 2 ft at 15 seconds.
.FRI NIGHT...NW wind 10 to 15 kt. Seas 5 to 7 ft. Wave Detail: NW
6 ft at 8 seconds and SW 2 ft at 15 seconds.
.SAT...NW wind 10 to 15 kt. Seas 5 to 7 ft. Wave Detail: W 6 ft
at 8 seconds and SW 2 ft at 14 seconds.
.SAT NIGHT...NW wind 10 to 15 kt. Seas 5 to 7 ft. Wave Detail: NW
7 ft at 7 seconds and SW 2 ft at 15 seconds.
.SUN...NW wind 10 to 15 kt. Seas 5 to 8 ft. Wave Detail: NW 7 ft
at 8 seconds and SW 2 ft at 15 seconds.
.SUN NIGHT...NW wind 10 to 15 kt. Seas 5 to 8 ft. Wave Detail: NW
7 ft at 8 seconds and SW 2 ft at 16 seconds.

$$

PZZ173-202230-
Coastal Waters From James Island To Point Grenville 10 To 60 Nm-
226 AM PDT Wed Aug 20 2025

.TODAY...NW wind 5 to 10 kt, rising to 10 to 15 kt late. Seas
4 to 5 ft. Wave Detail: NW 5 ft at 7 seconds and SW 2 ft at
15 seconds.
.TONIGHT...NW wind 10 to 15 kt. Seas 4 to 6 ft. Wave Detail: NW
5 ft at 7 seconds and SW 2 ft at 15 seconds.
.THU...N wind 10 to 15 kt. Seas 4 to 6 ft. Wave Detail: NW 5 ft
at 7 seconds and SW 2 ft at 15 seconds.
.THU NIGHT...N wind 10 to 15 kt. Seas 5 to 6 ft. Wave Detail: NW
6 ft at 6 seconds and SW 2 ft at 15 seconds.
.FRI...N wind 10 to 15 kt. Seas 4 to 6 ft. Wave Detail: NW 6 ft
at 6 seconds, W 2 ft at 9 seconds and SW 2 ft at 15 seconds.
.FRI NIGHT...NW wind around 15 kt. Seas 5 to 7 ft. Wave Detail:
NW 7 ft at 7 seconds and SW 2 ft at 15 seconds.
.SAT...NW wind 10 to 15 kt. Seas 5 to 7 ft. Wave Detail: NW 7 ft
at 8 seconds and SW 2 ft at 14 seconds.
.SAT NIGHT...NW wind 15 to 20 kt. Seas 5 to 8 ft. Wave Detail: NW
7 ft at 7 seconds and SW 2 ft at 15 seconds.
.SUN...NW wind 10 to 15 kt. Seas 6 to 8 ft. Wave Detail: NW 8 ft
at 8 seconds and SW 2 ft at 15 seconds.
.SUN NIGHT...NW wind 15 to 20 kt. Seas 5 to 8 ft. Wave Detail: NW
8 ft at 7 seconds and SW 2 ft at 16 seconds.

$$

PZZ176-202230-
Coastal Waters From Point Grenville To Cape Shoalwater 10 To
60 Nm-
226 AM PDT Wed Aug 20 2025

.TODAY...N wind 10 to 15 kt. Seas 4 to 5 ft. Wave Detail: NW 5 ft
at 7 seconds, NW 4 ft at 8 seconds and SW 2 ft at 15 seconds.
.TONIGHT...N wind 10 to 15 kt. Seas 5 to 6 ft. Wave Detail: NW
5 ft at 7 seconds and SW 2 ft at 15 seconds.
.THU...N wind 10 to 15 kt. Seas 4 to 6 ft. Wave Detail: NW 6 ft
at 7 seconds and SW 2 ft at 15 seconds.
.THU NIGHT...N wind around 15 kt. Seas 5 to 7 ft. Wave Detail: N
7 ft at 6 seconds, W 2 ft at 10 seconds and SW 2 ft at
15 seconds.
.FRI...N wind 10 to 15 kt. Seas 4 to 6 ft. Wave Detail: NW 6 ft
at 6 seconds and SW 2 ft at 15 seconds.
.FRI NIGHT...NW wind 15 to 20 kt. Seas 5 to 8 ft. Wave Detail: NW
7 ft at 7 seconds, W 3 ft at 8 seconds and SW 2 ft at 14 seconds.
.SAT...NW wind 10 to 15 kt. Seas 5 to 8 ft. Wave Detail: NW 7 ft
at 8 seconds and SW 2 ft at 14 seconds.
.SAT NIGHT...NW wind 15 to 20 kt. Seas 6 to 8 ft. Wave Detail: NW
8 ft at 8 seconds and SW 2 ft at 15 seconds.
.SUN...NW wind 10 to 15 kt. Seas 6 to 8 ft. Wave Detail: NW 7 ft
at 8 seconds and SW 2 ft at 15 seconds.
.SUN NIGHT...NW wind 15 to 20 kt, easing to 10 to 15 kt after
midnight. Seas 6 to 8 ft. Wave Detail: NW 8 ft at 7 seconds and
SW 2 ft at 16 seconds.

$$

PZZ130-202230-
West Entrance U.S. Waters Strait Of Juan De Fuca-
226 AM PDT Wed Aug 20 2025

.TODAY...W wind around 5 kt, rising to 10 to 15 kt this
afternoon. Seas around 3 ft. Wave Detail: W 3 ft at 8 seconds.
.TONIGHT...W wind 10 to 15 kt, easing to 5 to 10 kt after
midnight. Seas around 3 ft. Wave Detail: W 3 ft at 7 seconds.
.THU...NE wind around 5 kt. Seas around 3 ft. Wave Detail: W 3 ft
at 7 seconds.
.THU NIGHT...NW wind around 5 kt, veering to N around 5 kt after
midnight. Seas around 3 ft. Wave Detail: W 2 ft at 7 seconds.
.FRI...NE wind around 5 kt. Seas around 3 ft. Wave Detail: W 3 ft
at 6 seconds.
.FRI NIGHT...NW wind around 5 kt. Seas around 3 ft. Wave Detail:
W 3 ft at 7 seconds.
.SAT...NE wind around 5 kt. Seas 3 to 4 ft. Wave Detail: W 3 ft
at 8 seconds.
.SAT NIGHT...W wind around 5 kt. Seas 3 to 4 ft. Wave Detail: W
4 ft at 8 seconds.
.SUN...NW wind around 5 kt. Seas 3 to 4 ft. Wave Detail: W 4 ft
at 8 seconds.
.SUN NIGHT...W wind around 5 kt. Seas 3 to 4 ft. Wave Detail: W
4 ft at 8 seconds.

$$

PZZ131-202230-
Central U.S. Waters Strait Of Juan De Fuca-
226 AM PDT Wed Aug 20 2025

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 5 AM PDT EARLY THIS
MORNING...

.TODAY...W wind 15 to 25 kt easing to 10 to 15 kt. Waves around 2
ft or less.
.TONIGHT...W wind 15 to 20 kt, easing to 10 to 15 kt after
midnight. Waves around 2 ft or less.
.THU...N wind around 5 kt. Waves around 2 ft or less.
.THU NIGHT...W wind around 5 kt. Waves around 2 ft or less.
.FRI...NE wind 5 to 10 kt. Waves around 2 ft or less.
.FRI NIGHT...NW wind 5 to 10 kt, backing to W after midnight.
Waves around 2 ft or less.
.SAT...E wind 5 to 10 kt. Waves around 2 ft or less.
.SAT NIGHT...W wind 5 to 10 kt. Waves around 2 ft or less.
.SUN...E wind 5 to 10 kt, backing to NE in the afternoon. Waves
around 2 ft or less.
.SUN NIGHT...W wind 5 to 10 kt. Waves around 2 ft or less.

$$

PZZ132-202230-
East Entrance U.S. Waters Strait Of Juan De Fuca-
226 AM PDT Wed Aug 20 2025

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 5 AM PDT EARLY THIS
MORNING...

.TODAY...W wind 15 to 25 kt easing to 10 to 15 kt. Waves around 2
ft or less.
.TONIGHT...W wind 15 to 20 kt, easing to 10 to 15 kt after
midnight. Waves around 2 ft or less.
.THU...NW wind 5 to 10 kt. Waves around 2 ft or less.
.THU NIGHT...W wind 5 to 10 kt. Waves around 2 ft or less.
.FRI...NW wind 5 to 10 kt. Waves around 2 ft or less.
.FRI NIGHT...NW wind 5 to 10 kt. Waves around 2 ft or less.
.SAT...NW wind 5 to 10 kt. Waves around 2 ft or less.
.SAT NIGHT...W wind 5 to 10 kt. Waves around 2 ft or less.
.SUN...NW 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.

$$

PZZ134-202230-
Admiralty Inlet-
226 AM PDT Wed Aug 20 2025

.TODAY...NW wind 5 to 10 kt. Waves around 2 ft or less.
.TONIGHT...NW wind 10 to 15 kt. Waves around 2 ft or less.
.THU...NW wind 5 to 10 kt. Waves around 2 ft or less.
.THU NIGHT...NW wind 5 to 10 kt. Waves around 2 ft or less.
.FRI...NW wind around 5 kt, rising to around 10 kt in the
afternoon. Waves around 2 ft or less.
.FRI NIGHT...NW wind 5 to 10 kt. Waves around 2 ft or less.
.SAT...NW wind 5 to 10 kt. Waves around 2 ft or less.
.SAT NIGHT...NW wind 5 to 10 kt. Waves around 2 ft or less.
.SUN...NW wind around 5 kt, rising to 5 to 10 kt in the
afternoon. Waves around 2 ft or less.
.SUN NIGHT...NW wind 5 to 10 kt, easing to around 5 kt after
midnight. Waves around 2 ft or less.

$$

PZZ133-202230-
Northern Inland Waters Including The San Juan Islands-
226 AM PDT Wed Aug 20 2025

.TODAY...W wind around 5 kt. Waves around 2 ft or less.
.TONIGHT...S wind 5 to 10 kt, becoming N after midnight. Waves
around 2 ft or less.
.THU...NW wind around 5 kt, rising to 5 to 10 kt in the
afternoon. Waves around 2 ft or less.
.THU NIGHT...NW wind 5 to 10 kt, easing to around 5 kt after
midnight. Waves around 2 ft or less.
.FRI...N wind around 5 kt, backing to NW in the afternoon. Waves
around 2 ft or less.
.FRI NIGHT...NW wind 5 to 10 kt, easing to around 5 kt after
midnight. Waves around 2 ft or less.
.SAT...NW wind around 5 kt. Waves around 2 ft or less.
.SAT NIGHT...NW wind 5 to 10 kt, easing to around 5 kt after
midnight. Waves around 2 ft or less.
.SUN...NW wind around 5 kt. Waves around 2 ft or less.
.SUN NIGHT...W wind around 5 kt. Waves around 2 ft or less.

$$

PZZ135-202230-
Puget Sound and Hood Canal-
226 AM PDT Wed Aug 20 2025

.TODAY...NE wind around 5 kt, backing to N late. Waves around
2 ft or less.
.TONIGHT...N wind 5 to 10 kt. Waves around 2 ft or less.
.THU...N wind 5 to 10 kt. Waves around 2 ft or less.
.THU NIGHT...N wind 5 to 10 kt. Waves around 2 ft or less.
.FRI...N wind 5 to 10 kt. Waves around 2 ft or less.
.FRI NIGHT...N wind 5 to 10 kt. Waves around 2 ft or less.
.SAT...N wind around 5 kt, rising to 5 to 10 kt in the afternoon.
Waves around 2 ft or less.
.SAT NIGHT...N wind 5 to 10 kt, easing to around 5 kt after
midnight. Waves around 2 ft or less.
.SUN...N wind around 5 kt. Waves around 2 ft or less.
.SUN NIGHT...N wind 5 to 10 kt, becoming NW after midnight. Waves
around 2 ft or less.

$$

PZZ110-202230-
Grays Harbor Bar-
226 AM PDT Wed Aug 20 2025

Combined seas 3 or 4 ft. Bar conditions light. Maximum ebb
currents will occur around 245 AM and 330 PM Wednesday, and 345 AM
Thursday. The Wednesday and Thursday morning ebb will be strong.

$$