337
FZUS56 KSEW 172120
CWFSEW

Coastal Waters Forecast for Washington
National Weather Service Seattle WA
220 PM PDT Sun Aug 17 2025

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

PZZ100-181030-
220 PM PDT Sun Aug 17 2025

.SYNOPSIS FOR THE NORTHERN AND CENTRAL WASHINGTON COASTAL AND INLAND
WATERS...High pressure will briefly build back over the waters today
then dissipate tonight into Monday. A weak system will fall apart
over the coastal waters Monday night. High pressure will rebuild
Tuesday and remain over the waters through Friday.

$$

PZZ150-181030-
Coastal Waters From Cape Flattery To James Island Out 10 Nm-
220 PM PDT Sun Aug 17 2025

.TONIGHT...S wind around 5 kt. Seas 4 to 5 ft. Wave Detail: W
5 ft at 9 seconds. A slight chance of rain late.
.MON...SE wind 5 to 10 kt, becoming S 10 to 15 kt in the
afternoon. Seas 4 to 5 ft. Wave Detail: W 5 ft at 9 seconds. A
chance of rain in the afternoon.
.MON NIGHT...SE wind 5 to 10 kt. Seas 4 to 5 ft. Wave Detail: S
2 ft at 6 seconds and W 5 ft at 9 seconds. A chance of rain.
.TUE...S wind 5 to 10 kt. Seas around 4 ft. Wave Detail: SW 3 ft
at 6 seconds and W 4 ft at 9 seconds. A chance of rain.
.TUE NIGHT...NW wind around 5 kt. Seas 3 to 4 ft. Wave Detail: SW
2 ft at 6 seconds and W 3 ft at 9 seconds.
.WED...NW wind 5 to 10 kt. Seas around 3 ft. Wave Detail: W 3 ft
at 8 seconds.
.WED NIGHT...NW wind 5 to 10 kt. Seas around 3 ft. Wave Detail:
NW 2 ft at 4 seconds, W 3 ft at 8 seconds and SW 2 ft at
15 seconds.
.THU...N wind 5 to 10 kt. Seas around 3 ft. Wave Detail: NW 2 ft
at 5 seconds, W 3 ft at 8 seconds and SW 2 ft at 15 seconds.
.THU NIGHT...NW wind 5 to 10 kt. Seas around 3 ft. Wave Detail:
NW 3 ft at 5 seconds, W 3 ft at 8 seconds and SW 2 ft at
15 seconds.
.FRI...N wind 5 to 10 kt. Seas around 3 ft. Wave Detail: NW 3 ft
at 5 seconds, W 3 ft at 9 seconds and SW 2 ft at 14 seconds.
.FRI NIGHT...NW wind 5 to 10 kt. Seas 3 to 4 ft. Wave Detail: NW
2 ft at 5 seconds, W 3 ft at 8 seconds and SW 2 ft at 14 seconds.


$$

PZZ153-181030-
Coastal Waters From James Island To Point Grenville Out 10 Nm-
220 PM PDT Sun Aug 17 2025

.TONIGHT...SW wind around 5 kt early this evening, becoming light
and variable, then becoming SE around 5 kt after midnight. Seas
4 to 5 ft. Wave Detail: W 5 ft at 9 seconds.
.MON...SE wind 5 to 10 kt. Seas 4 to 5 ft. Wave Detail: W 4 ft at
9 seconds.
.MON NIGHT...SE wind 5 to 10 kt. Seas 4 to 5 ft. Wave Detail: S
2 ft at 5 seconds and W 4 ft at 9 seconds. A chance of rain in
the evening.
.TUE...S wind 5 to 10 kt. Seas 3 to 4 ft. Wave Detail: SW 2 ft at
6 seconds and W 4 ft at 9 seconds. A chance of rain.
.TUE NIGHT...NW wind around 5 kt. Seas 3 to 4 ft. Wave Detail: SW
2 ft at 6 seconds and W 3 ft at 9 seconds.
.WED...NW wind 5 to 10 kt. Seas around 3 ft. Wave Detail: W 3 ft
at 8 seconds.
.WED NIGHT...NW wind 5 to 10 kt. Seas 3 to 4 ft. Wave Detail: NW
3 ft at 5 seconds and W 3 ft at 8 seconds.
.THU...N wind 5 to 10 kt. Seas 3 to 4 ft. Wave Detail: NW 3 ft at
7 seconds and SW 2 ft at 15 seconds.
.THU NIGHT...N wind 5 to 10 kt. Seas 3 to 4 ft. Wave Detail: NW
3 ft at 5 seconds and W 3 ft at 9 seconds.
.FRI...N wind 5 to 10 kt. Seas around 3 ft. Wave Detail: W 3 ft
at 6 seconds.
.FRI NIGHT...NW wind 5 to 10 kt. Seas 3 to 4 ft. Wave Detail: NW
3 ft at 5 seconds and W 4 ft at 9 seconds.

$$

PZZ156-181030-
Coastal Waters From Point Grenville To Cape Shoalwater Out 10 Nm-
220 PM PDT Sun Aug 17 2025

.TONIGHT...W wind around 5 kt, backing to S after midnight. Seas
4 to 5 ft. Wave Detail: W 5 ft at 10 seconds.
.MON...S wind 5 to 10 kt. Seas 4 to 5 ft. Wave Detail: W 5 ft at
9 seconds.
.MON NIGHT...S wind 5 to 10 kt. Seas 4 to 5 ft. Wave Detail: W
5 ft at 9 seconds.
.TUE...SE wind 5 to 10 kt, veering to SW in the afternoon. Seas
3 to 4 ft. Wave Detail: W 4 ft at 9 seconds.
.TUE NIGHT...NW wind around 5 kt. Seas 3 to 4 ft. Wave Detail: W
4 ft at 9 seconds.
.WED...NW wind 5 to 10 kt. Seas 3 to 4 ft. Wave Detail: W 3 ft at
8 seconds.
.WED NIGHT...NW wind 10 to 15 kt. Seas 3 to 4 ft. Wave Detail: NW
3 ft at 5 seconds and W 3 ft at 8 seconds.
.THU...N wind 5 to 10 kt. Seas 3 to 4 ft. Wave Detail: NW 3 ft at
7 seconds.
.THU NIGHT...N wind 10 to 15 kt. Seas 3 to 4 ft. Wave Detail: NW
4 ft at 6 seconds and W 3 ft at 10 seconds.
.FRI...N wind 5 to 10 kt. Seas 3 to 4 ft. Wave Detail: NW 3 ft at
6 seconds and W 3 ft at 9 seconds.
.FRI NIGHT...NW wind 10 to 15 kt. Seas 3 to 4 ft. Wave Detail: NW
4 ft at 6 seconds.

$$

PZZ170-181030-
Coastal Waters From Cape Flattery To James Island 10 To 60 Nm-
220 PM PDT Sun Aug 17 2025

.TONIGHT...S wind 5 to 10 kt. Seas 5 to 6 ft. Wave Detail: W 5 ft
at 9 seconds and SW 2 ft at 13 seconds. A slight chance of rain.
.MON...S wind 10 to 15 kt. Seas around 5 ft. Wave Detail: S 2 ft
at 4 seconds, W 5 ft at 10 seconds and S 2 ft at 13 seconds. A
chance of rain.
.MON NIGHT...S wind 10 to 15 kt. Seas around 5 ft. Wave Detail: S
3 ft at 6 seconds and W 5 ft at 9 seconds. Rain likely, mainly in
the evening.
.TUE...S wind around 10 kt, veering to SW in the afternoon. Seas
4 to 5 ft. Wave Detail: S 3 ft at 6 seconds and W 4 ft at
9 seconds. A chance of rain.
.TUE NIGHT...NW wind 5 to 10 kt. Seas around 4 ft. Wave Detail:
SW 2 ft at 6 seconds and W 3 ft at 9 seconds.
.WED...NW wind 5 to 10 kt. Seas 3 to 4 ft. Wave Detail: W 3 ft at
8 seconds and SW 2 ft at 15 seconds.
.WED NIGHT...NW wind around 10 kt. Seas 3 to 4 ft. Wave Detail:
NW 2 ft at 4 seconds, W 3 ft at 8 seconds and SW 2 ft at
15 seconds.
.THU...NW wind 5 to 10 kt. Seas 3 to 4 ft. Wave Detail: NW 3 ft
at 7 seconds and SW 2 ft at 15 seconds.
.THU NIGHT...NW wind 10 to 15 kt. Seas 3 to 4 ft. Wave Detail: NW
3 ft at 5 seconds, W 3 ft at 9 seconds and SW 2 ft at 15 seconds.
.FRI...NW wind 5 to 10 kt. Seas around 4 ft. Wave Detail: NW 3 ft
at 5 seconds, W 3 ft at 9 seconds and SW 2 ft at 15 seconds.
.FRI NIGHT...NW wind 10 to 15 kt. Seas 4 to 5 ft. Wave Detail: NW
3 ft at 5 seconds, W 4 ft at 8 seconds and SW 2 ft at 14 seconds.


$$

PZZ173-181030-
Coastal Waters From James Island To Point Grenville 10 To 60 Nm-
220 PM PDT Sun Aug 17 2025

.TONIGHT...S wind 5 to 10 kt. Seas 5 to 6 ft. Wave Detail: W 5 ft
at 9 seconds and SW 2 ft at 13 seconds. A slight chance of rain.
.MON...S wind 10 to 15 kt. Seas around 5 ft. Wave Detail: W 5 ft
at 10 seconds and S 2 ft at 13 seconds. A chance of rain in the
afternoon.
.MON NIGHT...S wind 10 to 15 kt. Seas around 5 ft. Wave Detail: S
3 ft at 6 seconds and W 5 ft at 9 seconds. A chance of rain.
.TUE...S wind around 10 kt, veering to SW in the afternoon. Seas
4 to 5 ft. Wave Detail: S 3 ft at 6 seconds and W 5 ft at
9 seconds. A chance of rain in the morning.
.TUE NIGHT...NW wind 5 to 10 kt. Seas around 4 ft. Wave Detail:
SW 2 ft at 6 seconds and W 3 ft at 9 seconds.
.WED...NW wind 5 to 10 kt. Seas 3 to 4 ft. Wave Detail: W 3 ft at
8 seconds and SW 2 ft at 15 seconds.
.WED NIGHT...NW wind 10 to 15 kt. Seas around 4 ft. Wave Detail:
NW 3 ft at 4 seconds, NW 4 ft at 8 seconds and SW 2 ft at
15 seconds.
.THU...N wind around 10 kt. Seas around 4 ft. Wave Detail: NW
4 ft at 8 seconds and SW 2 ft at 15 seconds.
.THU NIGHT...NW wind 10 to 15 kt. Seas 4 to 5 ft. Wave Detail: NW
4 ft at 5 seconds, W 2 ft at 10 seconds and SW 2 ft at
15 seconds.
.FRI...NW wind 10 to 15 kt. Seas 4 to 5 ft. Wave Detail: NW 4 ft
at 5 seconds, W 3 ft at 9 seconds and SW 2 ft at 15 seconds.
.FRI NIGHT...NW wind 10 to 15 kt. Seas 4 to 5 ft. Wave Detail: NW
4 ft at 5 seconds, W 4 ft at 8 seconds and SW 2 ft at 14 seconds.


$$

PZZ176-181030-
Coastal Waters From Point Grenville To Cape Shoalwater 10 To
60 Nm-
220 PM PDT Sun Aug 17 2025

.TONIGHT...SW wind around 5 kt, backing to S after midnight. Seas
5 to 6 ft. Wave Detail: W 6 ft at 9 seconds and SW 2 ft at
13 seconds. A slight chance of rain after midnight.
.MON...S wind 5 to 10 kt, rising to 10 to 15 kt in the afternoon.
Seas around 5 ft. Wave Detail: W 5 ft at 10 seconds.
.MON NIGHT...S wind around 10 kt. Seas around 5 ft. Wave Detail:
S 2 ft at 6 seconds and W 5 ft at 10 seconds. A chance of rain in
the evening.
.TUE...S wind 5 to 10 kt. Seas 4 to 5 ft. Wave Detail: W 4 ft at
9 seconds. A chance of rain in the morning.
.TUE NIGHT...NW wind 5 to 10 kt. Seas around 4 ft. Wave Detail:
SW 2 ft at 6 seconds and W 4 ft at 9 seconds.
.WED...N wind around 10 kt. Seas around 4 ft. Wave Detail: NW
3 ft at 8 seconds and SW 2 ft at 15 seconds.
.WED NIGHT...N wind 10 to 15 kt. Seas around 4 ft. Wave Detail:
NW 3 ft at 4 seconds, NW 3 ft at 8 seconds and SW 2 ft at
15 seconds.
.THU...N wind 10 to 15 kt. Seas around 4 ft. Wave Detail: NW 4 ft
at 7 seconds, W 2 ft at 10 seconds and SW 2 ft at 15 seconds.
.THU NIGHT...N wind around 15 kt. Seas 4 to 5 ft. Wave Detail: NW
4 ft at 5 seconds, W 2 ft at 10 seconds and SW 2 ft at
15 seconds.
.FRI...N wind 10 to 15 kt. Seas 4 to 5 ft. Wave Detail: NW 4 ft
at 6 seconds, W 2 ft at 9 seconds and SW 2 ft at 15 seconds.
.FRI NIGHT...NW wind 10 to 15 kt. Seas 4 to 5 ft. Wave Detail: NW
4 ft at 5 seconds, W 2 ft at 9 seconds and SW 2 ft at 14 seconds.


$$

PZZ130-181030-
West Entrance U.S. Waters Strait Of Juan De Fuca-
220 PM PDT Sun Aug 17 2025

.TONIGHT...W wind around 5 kt, backing to SE late. Seas 3 to
4 ft. Wave Detail: W 4 ft at 9 seconds.
.MON...E wind around 5 kt, veering to SE in the afternoon. Seas
3 to 4 ft. Wave Detail: W 3 ft at 9 seconds. A chance of rain in
the afternoon.
.MON NIGHT...SE wind 5 to 10 kt. Seas 3 to 4 ft. Wave Detail: W
3 ft at 9 seconds. A chance of rain.
.TUE...SE wind around 5 kt, veering to SW in the afternoon. Seas
around 3 ft. Wave Detail: W 3 ft at 9 seconds. A chance of rain.
.TUE NIGHT...W wind around 5 kt. Seas around 3 ft. Wave Detail: W
2 ft at 9 seconds.
.WED...W wind around 5 kt, rising to 5 to 10 kt in the afternoon.
Seas around 2 ft or less. Wave Detail: W 2 ft at 8 seconds.
.WED NIGHT...W wind 5 to 10 kt, easing to around 5 kt after
midnight. Seas around 3 ft. Wave Detail: W 2 ft at 8 seconds.
.THU...N wind around 5 kt. Seas around 2 ft or less. Wave Detail:
W 2 ft at 8 seconds.
.THU NIGHT...NW wind around 5 kt. Seas around 2 ft or less. Wave
Detail: W 2 ft at 7 seconds.
.FRI...NE wind around 5 kt. Seas around 2 ft or less, then around
3 ft in the afternoon. Wave Detail: W 2 ft at 9 seconds.
.FRI NIGHT...W wind around 5 kt. Seas around 3 ft. Wave Detail: W
3 ft at 8 seconds.

$$

PZZ131-181030-
Central U.S. Waters Strait Of Juan De Fuca-
220 PM PDT Sun Aug 17 2025

.TONIGHT...W wind 5 to 10 kt. Waves around 2 ft or less.
.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.
.TUE...S wind around 5 kt, veering to W in the afternoon. Waves
around 2 ft or less. A chance of rain in the morning.
.TUE NIGHT...W wind 5 to 10 kt. Waves around 2 ft or less.
.WED...W wind 5 to 10 kt. Waves around 2 ft or less.
.WED NIGHT...W wind 5 to 10 kt. Waves around 2 ft or less.
.THU...W wind 5 to 10 kt, veering to NE in the afternoon. Waves
around 2 ft or less.
.THU NIGHT...W wind 5 to 10 kt. Waves around 2 ft or less.
.FRI...E wind around 5 kt, backing to NE in the afternoon. Waves
around 2 ft or less.
.FRI NIGHT...W wind 5 to 10 kt. Waves around 2 ft or less.

$$

PZZ132-181030-
East Entrance U.S. Waters Strait Of Juan De Fuca-
220 PM PDT Sun Aug 17 2025

.TONIGHT...W wind 5 to 10 kt, becoming SW late. Waves around 2 ft
or less.
.MON...SE wind around 5 kt, veering to W in the afternoon. Waves
around 2 ft or less.
.MON NIGHT...W wind 5 to 10 kt. Waves around 2 ft or less.
.TUE...S wind around 5 kt, veering to SW in the afternoon. Waves
around 2 ft or less.
.TUE NIGHT...W wind 5 to 10 kt. Waves around 2 ft or less.
.WED...W wind 5 to 10 kt. Waves around 2 ft or less.
.WED NIGHT...W wind 5 to 10 kt. 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...W wind 5 to 10 kt. Waves around 2 ft or less.

$$

PZZ134-181030-
Admiralty Inlet-
220 PM PDT Sun Aug 17 2025

.TONIGHT...NW wind 5 to 10 kt, becoming W after midnight, backing
to S late. Waves around 2 ft or less.
.MON...SE wind around 5 kt. Waves around 2 ft or less.
.MON NIGHT...NW wind around 5 kt, backing to SW around 5 kt after
midnight. Waves around 2 ft or less.
.TUE...S wind around 5 kt, veering to W around 5 kt in the
afternoon. Waves around 2 ft or less.
.TUE NIGHT...NW wind 5 to 10 kt. Waves around 2 ft or less.
.WED...NW wind around 5 kt, rising to 5 to 10 kt in the
afternoon. Waves around 2 ft or less.
.WED NIGHT...NW wind 5 to 10 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 5 to 10 kt. Waves around 2 ft or less.
.FRI NIGHT...NW wind 5 to 10 kt. Waves around 2 ft or less.

$$

PZZ133-181030-
Northern Inland Waters Including The San Juan Islands-
220 PM PDT Sun Aug 17 2025

.TONIGHT...SW wind around 5 kt. Waves around 2 ft or less.
.MON...S wind around 5 kt. Waves around 2 ft or less.
.MON NIGHT...S wind around 5 kt. Waves around 2 ft or less.
.TUE...S wind around 5 kt. Waves around 2 ft or less.
.TUE NIGHT...W wind around 5 kt. Waves around 2 ft or less.
.WED...W wind around 5 kt. Waves around 2 ft or less.
.WED NIGHT...SW wind around 5 kt, backing to SE after midnight.
Waves around 2 ft or less.
.THU...NW wind around 5 kt. 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...NW wind around 5 kt. Waves around 2 ft or less.
.FRI NIGHT...NW wind 5 to 10 kt, becoming W after midnight. Waves
around 2 ft or less.

$$

PZZ135-181030-
Puget Sound and Hood Canal-
220 PM PDT Sun Aug 17 2025

.TONIGHT...NW wind around 5 kt, backing to S after midnight.
Waves around 2 ft or less.
.MON...S wind around 5 kt, veering to SW in the afternoon. Waves
around 2 ft or less.
.MON NIGHT...SW wind 5 to 10 kt, becoming S after midnight. Waves
around 2 ft or less.
.TUE...SW wind around 5 kt. Waves around 2 ft or less.
.TUE NIGHT...NW wind around 5 kt. Waves around 2 ft or less.
.WED...N wind around 5 kt. Waves around 2 ft or less.
.WED NIGHT...N wind 5 to 10 kt. Waves around 2 ft or less.
.THU...N wind around 5 kt, rising to 5 to 10 kt in the afternoon.
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, easing to around 5 kt after
midnight. Waves around 2 ft or less.

$$

PZZ110-181030-
Grays Harbor Bar-
220 PM PDT Sun Aug 17 2025

Combined seas 4 to 6 ft. Bar conditions light. Maximum ebb
currents will occur around 1245 AM Monday, 115 PM Monday, and 145
AM Tuesday.

$$