Coastal Waters Forecast
Issued by NWS Seattle/Tacoma, WA

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058
FZUS56 KSEW 170933
CWFSEW

Coastal Waters Forecast for Washington
National Weather Service Seattle WA
233 AM PDT Thu Apr 17 2025

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

PZZ100-172245-
233 AM PDT Thu Apr 17 2025

.SYNOPSIS FOR THE NORTHERN AND CENTRAL WASHINGTON COASTAL AND INLAND
WATERS...Surface ridging will remain over the waters into Friday. A
weak front and associated trough will slip southward along the
British Columbia coast and into the area Friday night into Saturday.
A secondary system will follow later Sunday into early Monday. High
pressure will then rebuild across the waters early next week.

$$

PZZ150-172245-
Coastal Waters From Cape Flattery To James Island Out 10 Nm-
233 AM PDT Thu Apr 17 2025

.TODAY...NE wind 5 to 10 kt, backing to NW early this afternoon,
rising to 10 to 15 kt late. Seas 4 to 6 ft. Wave Detail: W 6 ft
at 11 seconds.
.TONIGHT...NW wind 10 to 15 kt, easing to 5 to 10 kt after
midnight. Seas 4 to 5 ft. Wave Detail: W 5 ft at 9 seconds.
.FRI...W wind around 5 kt, rising to 10 to 15 kt in the
afternoon. Seas around 5 ft. Wave Detail: W 4 ft at 8 seconds and
W 4 ft at 13 seconds.
.FRI NIGHT...NW wind 10 to 15 kt, rising to 15 to 20 kt after
midnight. Seas 5 to 7 ft. Wave Detail: W 5 ft at 6 seconds and W
7 ft at 12 seconds.
.SAT...NW wind 15 to 20 kt. Seas 8 to 10 ft. Wave Detail: W 9 ft
at 8 seconds.
.SAT NIGHT...NW wind 15 to 20 kt. Seas 7 to 9 ft. Wave Detail: W
9 ft at 10 seconds.
.SUN...W wind 10 to 15 kt. Seas 6 to 8 ft. Wave Detail: W 7 ft at
11 seconds. A chance of showers in the morning.
.SUN NIGHT...NW wind 15 to 20 kt, easing to 10 to 15 kt after
midnight. Seas 7 to 8 ft. Wave Detail: W 7 ft at 11 seconds.
.MON...NW wind 10 to 15 kt. Seas 5 to 7 ft. Wave Detail: W 7 ft
at 10 seconds.
.MON NIGHT...NW wind 10 to 15 kt, easing to 5 to 10 kt after
midnight. Seas 5 to 6 ft. Wave Detail: W 6 ft at 10 seconds.

$$

PZZ153-172245-
Coastal Waters From James Island To Point Grenville Out 10 Nm-
233 AM PDT Thu Apr 17 2025

.TODAY...NE wind around 5 kt, veering to SE late this morning,
veering to NW early this afternoon, rising to 10 to 15 kt late.
Seas 4 to 6 ft. Wave Detail: W 6 ft at 11 seconds.
.TONIGHT...NW wind 10 to 15 kt, becoming N 5 to 10 kt after
midnight. Seas 4 to 5 ft. Wave Detail: NW 5 ft at 9 seconds.
.FRI...N wind around 5 kt, becoming NW 10 to 15 kt in the
afternoon. Seas 4 to 5 ft. Wave Detail: W 4 ft at 8 seconds and W
3 ft at 13 seconds.
.FRI NIGHT...NW wind 10 to 15 kt. Seas 4 to 6 ft. Wave Detail: NW
6 ft at 8 seconds and W 6 ft at 12 seconds.
.SAT...NW wind 15 to 20 kt. Seas 6 to 9 ft. Wave Detail: NW 9 ft
at 10 seconds.
.SAT NIGHT...NW wind 15 to 20 kt, easing to 10 to 15 kt after
midnight. Seas 6 to 9 ft. Wave Detail: W 8 ft at 9 seconds. A
chance of showers after midnight.
.SUN...NW wind 10 to 15 kt. Seas 5 to 7 ft. Wave Detail: W 7 ft
at 11 seconds. A chance of showers in the morning.
.SUN NIGHT...NW wind 10 to 15 kt. Seas 6 to 7 ft. Wave Detail: W
7 ft at 11 seconds.
.MON...NW wind 10 to 15 kt. Seas 5 to 7 ft. Wave Detail: W 7 ft
at 10 seconds.
.MON NIGHT...NW wind 5 to 10 kt. Seas 4 to 6 ft. Wave Detail: W
6 ft at 10 seconds.

$$

PZZ156-172245-
Coastal Waters From Point Grenville To Cape Shoalwater Out 10 Nm-
233 AM PDT Thu Apr 17 2025

.TODAY...E wind around 5 kt, rising to 5 to 10 kt late this
morning, backing to NW early this afternoon, rising to 10 to
15 kt late. Seas 4 to 6 ft. Wave Detail: W 6 ft at 11 seconds.
.TONIGHT...N wind 10 to 15 kt. Seas 4 to 5 ft. Wave Detail: NW
5 ft at 10 seconds.
.FRI...N wind 5 to 10 kt, becoming NW 10 to 15 kt in the
afternoon. Seas 4 to 5 ft. Wave Detail: NW 4 ft at 8 seconds and
W 3 ft at 13 seconds.
.FRI NIGHT...NW wind 10 to 15 kt, rising to 15 to 20 kt after
midnight. Seas 4 to 6 ft. Wave Detail: NW 6 ft at 8 seconds and W
5 ft at 12 seconds.
.SAT...NW wind 15 to 20 kt. Seas 6 to 9 ft. Wave Detail: NW 8 ft
at 10 seconds.
.SAT 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 9 seconds.
.SUN...NW wind 10 to 15 kt. Seas 5 to 7 ft. Wave Detail: W 7 ft
at 11 seconds. A chance of showers in the morning.
.SUN NIGHT...NW wind 10 to 15 kt. Seas 5 to 7 ft. Wave Detail: W
7 ft at 11 seconds.
.MON...NW wind 10 to 15 kt. Seas 5 to 7 ft. Wave Detail: W 6 ft
at 10 seconds.
.MON NIGHT...NW wind 10 to 15 kt. Seas 4 to 6 ft. Wave Detail: W
6 ft at 10 seconds.

$$

PZZ170-172245-
Coastal Waters From Cape Flattery To James Island 10 To 60 Nm-
233 AM PDT Thu Apr 17 2025

.TODAY...N wind 5 to 10 kt, becoming NW 10 to 15 kt this
afternoon. Seas 5 to 7 ft. Wave Detail: NW 6 ft at 11 seconds.
.TONIGHT...NW wind 10 to 15 kt. Seas 5 to 6 ft. Wave Detail: NW
5 ft at 9 seconds.
.FRI...NW wind 10 to 15 kt. Seas 5 to 6 ft. Wave Detail: NW 5 ft
at 8 seconds and W 4 ft at 13 seconds.
.FRI NIGHT...NW wind 15 to 20 kt, rising to 20 to 25 kt after
midnight. Seas 6 to 7 ft, building to 7 to 9 ft after midnight.
Wave Detail: NW 9 ft at 8 seconds and W 9 ft at 12 seconds.
.SAT...NW wind 20 to 25 kt. Seas 9 to 11 ft. Wave Detail: NW
11 ft at 10 seconds.
.SAT NIGHT...NW wind 20 to 25 kt, easing to 15 to 20 kt after
midnight. Seas 8 to 10 ft. Wave Detail: NW 10 ft at 8 seconds and
W 8 ft at 11 seconds.
.SUN...NW wind 15 to 20 kt. Seas 7 to 8 ft. Wave Detail: W 8 ft
at 11 seconds.
.SUN NIGHT...NW wind 15 to 20 kt. Seas 7 to 8 ft. Wave Detail: W
8 ft at 11 seconds.
.MON...NW wind 15 to 20 kt, easing to 10 to 15 kt in the
afternoon. Seas 6 to 8 ft. Wave Detail: NW 8 ft at 10 seconds.
.MON NIGHT...NW wind 10 to 15 kt. Seas 6 to 7 ft. Wave Detail: NW
6 ft at 10 seconds.

$$

PZZ173-172245-
Coastal Waters From James Island To Point Grenville 10 To 60 Nm-
233 AM PDT Thu Apr 17 2025

.TODAY...NW wind 10 to 15 kt. Seas 5 to 7 ft. Wave Detail: NW
7 ft at 11 seconds.
.TONIGHT...NW wind 10 to 15 kt. Seas 5 to 6 ft. Wave Detail: NW
5 ft at 7 seconds and NW 5 ft at 10 seconds.
.FRI...NW wind 10 to 15 kt. Seas 5 to 6 ft. Wave Detail: NW 5 ft
at 8 seconds and W 4 ft at 13 seconds.
.FRI NIGHT...NW wind 15 to 20 kt, rising to 20 to 25 kt after
midnight. Seas 6 to 9 ft. Wave Detail: NW 9 ft at 8 seconds and W
8 ft at 12 seconds.
.SAT...NW wind 20 to 25 kt. Seas 9 to 11 ft. Wave Detail: NW
10 ft at 10 seconds.
.SAT NIGHT...NW wind 15 to 20 kt. Seas 8 to 10 ft. Wave Detail: W
9 ft at 9 seconds.
.SUN...NW wind around 15 kt. Seas 7 to 8 ft. Wave Detail: W 8 ft
at 11 seconds. A chance of showers in the morning.
.SUN NIGHT...NW wind 15 to 20 kt. Seas 7 to 8 ft. Wave Detail: W
8 ft at 11 seconds.
.MON...NW wind 10 to 15 kt. Seas 7 to 8 ft. Wave Detail: NW 8 ft
at 10 seconds.
.MON NIGHT...NW wind 10 to 15 kt. Seas 6 to 7 ft. Wave Detail: NW
6 ft at 10 seconds.

$$

PZZ176-172245-
Coastal Waters From Point Grenville To Cape Shoalwater 10 To
60 Nm-
233 AM PDT Thu Apr 17 2025

.TODAY...N wind 5 to 10 kt, becoming NW 10 to 15 kt this
afternoon. Seas 5 to 7 ft. Wave Detail: NW 7 ft at 11 seconds.
.TONIGHT...NW wind 10 to 15 kt. Seas 5 to 6 ft. Wave Detail: NW
5 ft at 9 seconds.
.FRI...NW wind 5 to 10 kt, rising to 10 to 15 kt in the
afternoon. Seas 5 to 6 ft. Wave Detail: NW 5 ft at 8 seconds and
W 4 ft at 14 seconds.
.FRI NIGHT...NW wind 15 to 20 kt. Seas 5 to 6 ft, building to
6 to 8 ft after midnight. Wave Detail: NW 8 ft at 8 seconds and W
4 ft at 12 seconds.
.SAT...NW wind 20 to 25 kt. Seas 7 to 10 ft, building to 9 to
10 ft in the afternoon. Wave Detail: NW 9 ft at 10 seconds.
.SAT NIGHT...NW wind 15 to 20 kt. Seas 7 to 9 ft. Wave Detail: NW
8 ft at 8 seconds and W 7 ft at 10 seconds.
.SUN...NW wind around 15 kt. Seas around 7 ft. Wave Detail: W
7 ft at 11 seconds. A chance of showers in the morning.
.SUN NIGHT...NW wind around 15 kt. Seas around 7 ft. Wave Detail:
NW 7 ft at 11 seconds.
.MON...NW wind 10 to 15 kt. Seas 6 to 7 ft. Wave Detail: NW 7 ft
at 10 seconds.
.MON NIGHT...NW wind 10 to 15 kt. Seas around 6 ft. Wave Detail:
NW 6 ft at 10 seconds.

$$

PZZ130-172245-
West Entrance U.S. Waters Strait Of Juan De Fuca-
233 AM PDT Thu Apr 17 2025

.TODAY...E wind 5 to 10 kt, backing to NW late. Seas 3 to 5 ft.
Wave Detail: W 5 ft at 11 seconds.
.TONIGHT...W wind 5 to 10 kt. Seas 3 to 4 ft. Wave Detail: W 4 ft
at 9 seconds.
.FRI...SW wind around 5 kt, veering to W 10 to 15 kt in the
afternoon. Seas 3 to 4 ft. Wave Detail: W 3 ft at 8 seconds and W
3 ft at 13 seconds.
.FRI NIGHT...W wind 10 to 15 kt. Seas 3 to 5 ft. Wave Detail: W
4 ft at 6 seconds and W 5 ft at 12 seconds.
.SAT...W wind 10 to 15 kt, rising to 15 to 20 kt in the
afternoon. Seas 5 to 7 ft. Wave Detail: W 7 ft at 9 seconds.
.SAT NIGHT...W wind 15 to 20 kt, easing to 10 to 15 kt after
midnight. Seas 5 to 7 ft. Wave Detail: W 7 ft at 9 seconds.
.SUN...W wind 10 to 15 kt, rising to 15 to 20 kt in the
afternoon. Seas 4 to 6 ft. Wave Detail: W 6 ft at 11 seconds. A
chance of showers.
.SUN NIGHT...W wind 15 to 20 kt, easing to 10 to 15 kt after
midnight. Seas 4 to 6 ft. Wave Detail: W 2 ft at 4 seconds and W
6 ft at 10 seconds.
.MON...W wind 5 to 10 kt. Seas 3 to 5 ft. Wave Detail: W 5 ft at
10 seconds.
.MON NIGHT...W wind 10 to 15 kt, easing to around 5 kt after
midnight. Seas 3 to 5 ft. Wave Detail: W 5 ft at 10 seconds.

$$

PZZ131-172245-
Central U.S. Waters Strait Of Juan De Fuca-
233 AM PDT Thu Apr 17 2025

.TODAY...SE wind 5 to 10 kt, backing to NE late. Waves around
2 ft or less.
.TONIGHT...W wind 10 to 15 kt. Waves around 2 ft or less.
.FRI...W wind around 5 kt, rising to 15 to 20 kt in the
afternoon. Waves around 1 ft or less, then around 3 ft in the
afternoon.
.FRI NIGHT...W wind 15 to 20 kt, easing to 10 to 15 kt after
midnight. Waves 3 to 4 ft.
.SAT...W wind 5 to 10 kt, rising to 10 to 15 kt in the afternoon.
Waves around 2 ft or less, building to around 3 ft in the
afternoon.
.SAT NIGHT...W wind 15 to 20 kt, easing to 10 to 15 kt after
midnight. Waves 3 to 4 ft.
.SUN...W wind around 10 kt, rising to 15 to 20 kt in the
afternoon. Waves around 2 ft or less, building to around 3 ft in
the afternoon. A chance of showers in the afternoon.
.SUN NIGHT...W wind 15 to 20 kt, easing to 10 to 15 kt after
midnight. Waves 3 to 5 ft.
.MON...SW wind 5 to 10 kt, veering to NW in the afternoon. Waves
around 2 ft or less.
.MON NIGHT...W wind 5 to 10 kt. Waves around 2 ft or less.

$$

PZZ132-172245-
East Entrance U.S. Waters Strait Of Juan De Fuca-
233 AM PDT Thu Apr 17 2025

.TODAY...NW wind 5 to 10 kt. Waves around 2 ft or less.
.TONIGHT...W wind 10 to 15 kt. Waves around 2 ft or less.
.FRI...W wind 5 to 10 kt, rising to 10 to 15 kt in the afternoon.
Waves around 2 ft or less.
.FRI NIGHT...W wind 10 to 15 kt. Waves around 3 ft.
.SAT...W wind 5 to 10 kt. Waves around 2 ft or less.
.SAT NIGHT...W wind 10 to 15 kt. Waves 3 to 4 ft.
.SUN...SW wind 5 to 10 kt. Waves around 2 ft or less. A chance of
showers.
.SUN NIGHT...W wind 15 to 20 kt, easing to 10 to 15 kt after
midnight. Waves 3 to 4 ft.
.MON...SW wind 5 to 10 kt, veering to N in the afternoon. Waves
around 2 ft or less.
.MON NIGHT...W wind 5 to 10 kt. Waves around 2 ft or less.

$$

PZZ134-172245-
Admiralty Inlet-
233 AM PDT Thu Apr 17 2025

.TODAY...NW wind 5 to 10 kt. Waves around 2 ft or less.
.TONIGHT...NW wind 5 to 10 kt, backing to SW after midnight.
Waves around 2 ft or less.
.FRI...SW wind around 5 kt, veering to NW in the afternoon. Waves
around 1 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, backing to SW after midnight.
Waves around 2 ft or less.
.SUN...S wind 5 to 10 kt, veering to NW in the afternoon. Waves
around 2 ft or less. A chance of showers.
.SUN NIGHT...NW wind 5 to 10 kt. Waves around 2 ft or less. A
chance of showers in the evening.
.MON...S wind around 5 kt, backing to NE in the afternoon. Waves
around 1 ft or less.
.MON NIGHT...NW wind around 5 kt. Waves around 1 ft or less.

$$

PZZ133-172245-
Northern Inland Waters Including The San Juan Islands-
233 AM PDT Thu Apr 17 2025

.TODAY...NW wind 5 to 10 kt, easing to around 5 kt late. Waves
around 2 ft or less.
.TONIGHT...SW wind around 5 kt, backing to SE after midnight.
Waves around 1 ft or less.
.FRI...S wind around 5 kt, veering to SW in the afternoon. Waves
around 1 ft or less.
.FRI NIGHT...SW wind 5 to 10 kt, veering to W after midnight.
Waves around 2 ft or less.
.SAT...W 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...SW wind 5 to 10 kt. Waves around 2 ft or less. A chance of
showers.
.SUN NIGHT...W wind 5 to 10 kt. Waves around 2 ft or less.
.MON...W wind around 5 kt. Waves around 1 ft or less.
.MON NIGHT...SW wind around 5 kt. Waves around 1 ft or less.

$$

PZZ135-172245-
Puget Sound and Hood Canal-
233 AM PDT Thu Apr 17 2025

.TODAY...N wind 5 to 10 kt. Waves around 2 ft or less.
.TONIGHT...N wind 5 to 10 kt, easing to around 5 kt after
midnight. Waves around 2 ft or less.
.FRI...S wind around 5 kt, veering to SW in the afternoon. Waves
around 1 ft or less.
.FRI NIGHT...SW wind 5 to 10 kt, becoming NW after midnight.
Waves around 2 ft or less.
.SAT...SW wind around 5 kt, rising to 5 to 10 kt in the
afternoon. Waves around 2 ft or less.
.SAT NIGHT...NW wind 5 to 10 kt, backing to S after midnight.
Waves around 2 ft or less.
.SUN...S wind around 5 kt, veering to SW in the afternoon. Waves
around 1 ft or less. A chance of showers.
.SUN NIGHT...NW wind 5 to 10 kt, backing to SW after midnight.
Waves around 2 ft or less. A chance of showers in the evening.
.MON...S wind around 5 kt. Waves around 1 ft or less.
.MON NIGHT...NW wind around 5 kt. Waves around 1 ft or less.

$$

PZZ110-172245-
Grays Harbor Bar-
233 AM PDT Thu Apr 17 2025

Combined seas 4 to 6 ft. Bar conditions generally light. Maximum
ebb currents will occur around 730 AM this morning, 800 PM this
evening, and 815 AM Friday morning.

$$