753
FZUS56 KSEW 182119
CWFSEW

Coastal Waters Forecast for Washington
National Weather Service Seattle WA
219 PM PDT Tue Aug 18 2026

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

PZZ100-191030-
219 PM PDT Tue Aug 18 2026

.SYNOPSIS FOR THE NORTHERN AND CENTRAL WASHINGTON COASTAL AND
INLAND WATERS...Broad high pressure over the northeast Pacific
will continue to strengthen through tomorrow across area waters.
A weak system will approach the waters today with little impact.
Seas may be steep at times over the outer coastal waters through
Thursday. A stronger system is expected late in the week,
weakening high pressure over the waters. High pressure rebuilds
over the waters this weekend into next week.

$$

PZZ150-191030-
Coastal Waters From Cape Flattery To James Island Out 10 Nm-
219 PM PDT Tue Aug 18 2026

.TONIGHT...SW wind around 5 kt, backing to S late. Seas around
4 ft. Wave Detail: W 4 ft at 7 seconds, W 3 ft at 12 seconds and
SW 2 ft at 14 seconds.
.WED...S wind around 5 kt. Seas 4 to 6 ft. Wave Detail: W 4 ft at
8 seconds, W 5 ft at 12 seconds and SW 2 ft at 14 seconds.
.WED NIGHT...NW wind around 5 kt in the evening, becoming light
and variable. Seas 4 to 5 ft. Wave Detail: W 3 ft at 7 seconds, W
5 ft at 12 seconds and SW 2 ft at 14 seconds.
.THU...E wind around 5 kt, veering to SW in the afternoon. Seas
4 to 5 ft. Wave Detail: NW 2 ft at 7 seconds, W 5 ft at
11 seconds and SW 2 ft at 15 seconds.
.THU NIGHT...NW wind around 5 kt in the evening, becoming light
and variable. Seas 4 to 5 ft. Wave Detail: W 3 ft at 8 seconds, W
4 ft at 11 seconds and SW 2 ft at 15 seconds.
.FRI...S wind around 5 kt. Seas around 4 ft. Wave Detail: W 4 ft
at 9 seconds and SW 2 ft at 15 seconds.
.FRI NIGHT...S wind around 5 kt. Seas 3 to 4 ft. Wave Detail: W
3 ft at 9 seconds and SW 2 ft at 14 seconds.
.SAT...S wind around 5 kt. Seas 3 to 4 ft. Wave Detail: W 4 ft at
9 seconds.
.SAT NIGHT...W wind around 5 kt. Seas 3 to 4 ft. Wave Detail: W
4 ft at 9 seconds.
.SUN...NW wind around 5 kt. Seas 3 to 4 ft. Wave Detail: W 3 ft
at 7 seconds and W 2 ft at 11 seconds.
.SUN NIGHT...NW wind around 5 kt. Seas around 3 ft. Wave Detail:
W 3 ft at 6 seconds.

$$

PZZ153-191030-
Coastal Waters From James Island To Point Grenville Out 10 Nm-
219 PM PDT Tue Aug 18 2026

.TONIGHT...NW wind around 5 kt. Seas 4 to 5 ft. Wave Detail: W
5 ft at 7 seconds, W 3 ft at 13 seconds and SW 2 ft at
14 seconds.
.WED...SW wind around 5 kt. Seas 4 to 6 ft. Wave Detail: W 4 ft
at 8 seconds, W 5 ft at 12 seconds and SW 2 ft at 14 seconds.
.WED NIGHT...NW wind around 5 kt. Seas 4 to 6 ft. Wave Detail: NW
4 ft at 7 seconds, W 5 ft at 12 seconds and SW 2 ft at
14 seconds.
.THU...E wind around 5 kt, veering to SW in the afternoon. Seas
4 to 5 ft. Wave Detail: NW 3 ft at 7 seconds, W 5 ft at
11 seconds and SW 2 ft at 15 seconds.
.THU NIGHT...W wind around 5 kt. Seas 4 to 5 ft. Wave Detail: W
5 ft at 9 seconds and SW 2 ft at 15 seconds.
.FRI...S wind around 5 kt. Seas 4 to 5 ft. Wave Detail: W 4 ft at
9 seconds.
.FRI NIGHT...S wind around 5 kt. Seas 3 to 4 ft. Wave Detail: W
4 ft at 9 seconds.
.SAT...S wind 5 to 10 kt. Seas 3 to 4 ft. Wave Detail: W 4 ft at
9 seconds.
.SAT NIGHT...NW wind around 5 kt. Seas 3 to 4 ft. Wave Detail: W
4 ft at 9 seconds.
.SUN...NW wind 5 to 10 kt. Seas 3 to 4 ft. Wave Detail: W 3 ft at
7 seconds and W 2 ft at 11 seconds.
.SUN NIGHT...NW wind 5 to 10 kt. Seas 3 to 4 ft. Wave Detail: W
3 ft at 7 seconds.

$$

PZZ156-191030-
Coastal Waters From Point Grenville To Cape Shoalwater Out 10 Nm-
219 PM PDT Tue Aug 18 2026

.TONIGHT...NW wind 5 to 10 kt, easing to around 5 kt late. Seas
3 to 5 ft. Wave Detail: W 5 ft at 7 seconds, W 3 ft at 13 seconds
and SW 2 ft at 14 seconds.
.WED...W wind around 5 kt. Seas 4 to 6 ft. Wave Detail: W 4 ft at
7 seconds and W 5 ft at 12 seconds.
.WED NIGHT...NW wind around 5 kt. Seas 4 to 6 ft. Wave Detail: W
4 ft at 8 seconds and W 5 ft at 12 seconds.
.THU...Light and variable winds, becoming W around 5 kt in the
afternoon. Seas 4 to 5 ft. Wave Detail: NW 4 ft at 7 seconds and
W 5 ft at 11 seconds.
.THU NIGHT...W wind around 5 kt. Seas 4 to 5 ft. Wave Detail: W
4 ft at 10 seconds.
.FRI...S wind around 5 kt, rising to 5 to 10 kt in the afternoon.
Seas 3 to 4 ft. Wave Detail: W 4 ft at 9 seconds.
.FRI NIGHT...S wind around 5 kt. Seas 3 to 4 ft. Wave Detail: W
4 ft at 9 seconds.
.SAT...S wind 5 to 10 kt. Seas 3 to 4 ft. Wave Detail: W 4 ft at
8 seconds.
.SAT NIGHT...NW wind 5 to 10 kt. Seas 3 to 4 ft. Wave Detail: W
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.
.SUN NIGHT...NW wind 10 to 15 kt. Seas 3 to 5 ft. Wave Detail: NW
4 ft at 6 seconds.

$$

PZZ170-191030-
Coastal Waters From Cape Flattery To James Island 10 To 60 Nm-
219 PM PDT Tue Aug 18 2026

.TONIGHT...NW wind 10 to 15 kt, becoming W 5 to 10 kt after
midnight. Seas 5 to 7 ft. Wave Detail: NW 6 ft at 6 seconds, W
3 ft at 12 seconds and SW 2 ft at 14 seconds.
.WED...NW wind 5 to 10 kt. Seas 5 to 7 ft. Wave Detail: NW 6 ft
at 8 seconds, W 5 ft at 12 seconds and SW 2 ft at 14 seconds.
.WED NIGHT...NW wind 5 to 10 kt. Seas 4 to 6 ft. Wave Detail: NW
5 ft at 7 seconds, W 6 ft at 11 seconds and SW 2 ft at
14 seconds.
.THU...NE wind around 5 kt, backing to SW in the afternoon. Seas
5 to 6 ft. Wave Detail: W 5 ft at 8 seconds, W 5 ft at 11 seconds
and SW 2 ft at 15 seconds.
.THU NIGHT...NW wind around 5 kt. Seas 4 to 5 ft. Wave Detail: W
4 ft at 8 seconds, W 5 ft at 11 seconds and SW 2 ft at
15 seconds.
.FRI...S wind around 5 kt. Seas 4 to 5 ft. Wave Detail: W 4 ft at
9 seconds and S 2 ft at 15 seconds.
.FRI NIGHT...S wind around 5 kt. Seas around 4 ft. Wave Detail: W
4 ft at 9 seconds and S 2 ft at 14 seconds.
.SAT...SW wind 5 to 10 kt. Seas 4 to 5 ft. Wave Detail: W 4 ft at
8 seconds and S 2 ft at 14 seconds.
.SAT NIGHT...NW wind 5 to 10 kt. Seas 3 to 5 ft. Wave Detail: W
4 ft at 9 seconds and S 2 ft at 14 seconds.
.SUN...NW wind 5 to 10 kt. Seas around 4 ft. Wave Detail: NW 4 ft
at 6 seconds, W 2 ft at 11 seconds and S 2 ft at 14 seconds.
.SUN NIGHT...NW wind 5 to 10 kt. Seas 3 to 4 ft. Wave Detail: N
4 ft at 5 seconds and S 2 ft at 15 seconds.

$$

PZZ173-191030-
Coastal Waters From James Island To Point Grenville 10 To 60 Nm-
219 PM PDT Tue Aug 18 2026

.TONIGHT...NW wind 10 to 15 kt. Seas 5 to 7 ft. Wave Detail: N
7 ft at 6 seconds, W 4 ft at 12 seconds and SW 2 ft at
14 seconds.
.WED...NW wind 10 to 15 kt. Seas 5 to 8 ft. Wave Detail: NW 6 ft
at 8 seconds, W 6 ft at 12 seconds and SW 2 ft at 14 seconds.
.WED NIGHT...NW wind 10 to 15 kt, easing to 5 to 10 kt after
midnight. Seas 5 to 7 ft. Wave Detail: NW 6 ft at 7 seconds, W
6 ft at 12 seconds and SW 2 ft at 15 seconds.
.THU...N wind 5 to 10 kt, becoming W in the afternoon. Seas 5 to
7 ft. Wave Detail: NW 5 ft at 8 seconds, W 6 ft at 11 seconds and
SW 2 ft at 15 seconds.
.THU NIGHT...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...S wind around 5 kt. Seas around 5 ft. Wave Detail: W 5 ft
at 9 seconds and SW 2 ft at 15 seconds.
.FRI NIGHT...SW wind around 5 kt. Seas 4 to 5 ft. Wave Detail: W
4 ft at 9 seconds and SW 2 ft at 14 seconds.
.SAT...W wind 5 to 10 kt. Seas 4 to 5 ft. Wave Detail: W 5 ft at
9 seconds and S 2 ft at 14 seconds.
.SAT NIGHT...NW wind 5 to 10 kt. Seas 4 to 6 ft. Wave Detail: N
2 ft at 4 seconds, NW 5 ft at 8 seconds and W 2 ft at 11 seconds.
.SUN...NW wind 5 to 10 kt. Seas 4 to 5 ft. Wave Detail: NE 2 ft
at 4 seconds, NW 4 ft at 7 seconds and SW 2 ft at 14 seconds.
.SUN NIGHT...NW wind around 10 kt. Seas 4 to 5 ft. Wave Detail: N
4 ft at 5 seconds and S 2 ft at 16 seconds.

$$

PZZ176-191030-
Coastal Waters From Point Grenville To Cape Shoalwater 10 To
60 Nm-
219 PM PDT Tue Aug 18 2026

.TONIGHT...NW wind 10 to 15 kt. Seas 5 to 7 ft. Wave Detail: N
7 ft at 7 seconds, W 3 ft at 13 seconds and SW 2 ft at
14 seconds.
.WED...NW wind 10 to 15 kt. Seas 5 to 8 ft. Wave Detail: NW 6 ft
at 7 seconds, W 6 ft at 12 seconds and SW 2 ft at 14 seconds.
.WED NIGHT...NW wind 10 to 15 kt. Seas 5 to 8 ft. Wave Detail: NW
7 ft at 7 seconds, W 6 ft at 12 seconds and SW 2 ft at
14 seconds.
.THU...N wind 5 to 10 kt, backing to NW in the afternoon. Seas
5 to 7 ft. Wave Detail: NW 5 ft at 8 seconds, W 6 ft at
11 seconds and SW 2 ft at 15 seconds.
.THU NIGHT...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: W 4 ft
at 9 seconds and SW 2 ft at 15 seconds.
.FRI NIGHT...SW wind around 5 kt. Seas 4 to 5 ft. Wave Detail: W
4 ft at 9 seconds and SW 2 ft at 14 seconds.
.SAT...W wind 5 to 10 kt. Seas 4 to 5 ft. Wave Detail: NW 5 ft at
8 seconds and SW 2 ft at 14 seconds.
.SAT NIGHT...NW wind around 10 kt. Seas 4 to 6 ft. Wave Detail:
NW 5 ft at 7 seconds and SW 2 ft at 14 seconds.
.SUN...NW wind 5 to 10 kt. Seas 4 to 5 ft. Wave Detail: NW 4 ft
at 6 seconds and SW 2 ft at 14 seconds.
.SUN NIGHT...NW 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.

$$

PZZ130-191030-
West Entrance U.S. Waters Strait Of Juan De Fuca-
219 PM PDT Tue Aug 18 2026

.TONIGHT...W wind 5 to 10 kt, easing to around 5 kt late. Seas
3 to 4 ft. Wave Detail: W 3 ft at 7 seconds and W 3 ft at
12 seconds.
.WED...NW wind around 5 kt. Seas 3 to 4 ft. Wave Detail: W 3 ft
at 7 seconds and W 4 ft at 12 seconds.
.WED NIGHT...W wind around 5 kt. Seas 3 to 4 ft. Wave Detail: W
4 ft at 12 seconds.
.THU...SE wind around 5 kt, backing to NW in the afternoon. Seas
3 to 4 ft. Wave Detail: W 4 ft at 11 seconds.
.THU NIGHT...W wind around 5 kt. Seas 3 to 4 ft. Wave Detail: W
4 ft at 10 seconds.
.FRI...W wind 5 to 10 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: NW
2 ft at 6 seconds and W 3 ft at 9 seconds.
.SAT...SW wind 5 to 10 kt. Seas around 3 ft. Wave Detail: W 3 ft
at 9 seconds.
.SAT NIGHT...W wind 5 to 10 kt. Seas around 3 ft. Wave Detail: W
3 ft at 7 seconds.
.SUN...W wind around 5 kt. Seas around 3 ft. Wave Detail: W 3 ft
at 8 seconds.
.SUN NIGHT...W wind 5 to 10 kt. Seas around 3 ft. Wave Detail: W
2 ft at 6 seconds.

$$

PZZ131-191030-
Central U.S. Waters Strait Of Juan De Fuca-
219 PM PDT Tue Aug 18 2026

.TONIGHT...W wind 10 to 15 kt, easing to 5 to 10 kt late. Waves
around 3 ft.
.WED...NW wind around 5 kt. Waves around 2 ft or less.
.WED NIGHT...W wind around 5 kt. Waves around 2 ft or less.
.THU...NW wind around 5 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...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
rain.
.SAT...W wind 10 to 15 kt, easing to 5 to 10 kt in the afternoon.
Waves around 3 ft in the morning, then around 2 ft or less.
.SAT NIGHT...W wind 10 to 15 kt. Waves around 3 ft.
.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.

$$

PZZ132-191030-
East Entrance U.S. Waters Strait Of Juan De Fuca-
219 PM PDT Tue Aug 18 2026

.TONIGHT...W wind 5 to 10 kt. Waves around 2 ft or less.
.WED...S wind around 5 kt, veering to NW around 5 kt in the
afternoon. Waves around 2 ft or less.
.WED NIGHT...W wind around 5 kt. Waves around 2 ft or less.
.THU...NW wind around 5 kt. Waves around 2 ft or less.
.THU NIGHT...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 10 to 15 kt. Waves around 2 ft or less, then
around 3 ft after midnight. A chance of rain after midnight.
.SAT...SW wind 10 to 15 kt, becoming S 5 to 10 kt in the
afternoon. Waves around 3 ft in the morning, then around 2 ft or
less. A chance of rain in the morning.
.SAT NIGHT...W wind 5 to 10 kt. Waves around 2 ft or less.
.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.

$$

PZZ134-191030-
Admiralty Inlet-
219 PM PDT Tue Aug 18 2026

.TONIGHT...NW wind around 5 kt, backing to S around 5 kt late.
Waves around 2 ft or less.
.WED...SE wind around 5 kt, backing to NW around 5 kt in the
afternoon. Waves around 2 ft or less.
.WED NIGHT...NW wind around 5 kt. 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...Light and variable winds, becoming NW around 5 kt in the
afternoon. Waves around 2 ft or less.
.FRI NIGHT...NW wind around 5 kt, backing to SW around 5 kt after
midnight. Waves around 2 ft or less. A chance of rain after
midnight.
.SAT...S wind 5 to 10 kt. Waves around 2 ft or less. A chance of
rain.
.SAT NIGHT...NW wind around 5 kt. Waves around 2 ft or less.
.SUN...SW wind around 5 kt, veering to NW in the afternoon. Waves
around 2 ft or less.
.SUN NIGHT...NW wind 5 to 10 kt. Waves around 2 ft or less.

$$

PZZ133-191030-
Northern Inland Waters Including The San Juan Islands-
219 PM PDT Tue Aug 18 2026

.TONIGHT...S wind around 5 kt. Waves around 2 ft or less.
.WED...S wind around 5 kt, veering to W in the afternoon. Waves
around 2 ft or less.
.WED NIGHT...W wind around 5 kt in the evening, becoming light
and variable. Waves around 2 ft or less.
.THU...NW wind around 5 kt. Waves around 2 ft or less.
.THU NIGHT...W wind around 5 kt in the evening, becoming light
and variable. Waves around 2 ft or less.
.FRI...Light and variable winds, becoming SW around 5 kt in the
afternoon. Waves around 2 ft or less.
.FRI NIGHT...S wind 5 to 10 kt. Waves around 2 ft or less. A
chance of rain after midnight.
.SAT...S wind 10 to 15 kt. Waves around 2 ft or less. A chance of
rain in the morning.
.SAT NIGHT...SW wind 5 to 10 kt. Waves around 2 ft or less. A
chance of rain in the evening.
.SUN...SW wind around 5 kt. Waves around 2 ft or less.
.SUN NIGHT...SW wind around 5 kt. Waves around 2 ft or less.

$$

PZZ135-191030-
Puget Sound and Hood Canal-
219 PM PDT Tue Aug 18 2026

.TONIGHT...W wind 5 to 10 kt, becoming S after midnight. Waves
around 2 ft or less.
.WED...S wind around 5 kt, veering to W in the afternoon. Waves
around 2 ft or less.
.WED NIGHT...N wind around 5 kt. Waves around 2 ft or less.
.THU...Light and variable winds, becoming N around 5 kt in the
afternoon. Waves around 2 ft or less.
.THU NIGHT...N wind 5 to 10 kt, becoming NW after midnight. Waves
around 2 ft or less.
.FRI...SW 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.
.SAT...S wind 5 to 10 kt. Waves around 2 ft or less. A chance of
rain in the morning.
.SAT NIGHT...SW wind 5 to 10 kt. Waves around 2 ft or less.
.SUN...SW wind around 5 kt, veering to N around 5 kt in the
afternoon. Waves around 2 ft or less.
.SUN NIGHT...N wind 5 to 10 kt, easing to around 5 kt after
midnight. Waves around 2 ft or less.

$$

PZZ110-191030-
Grays Harbor Bar-
219 PM PDT Tue Aug 18 2026

Combined seas 2 to 4 ft. Bar conditions light. Maximum ebb
currents will occur around 930 PM Tuesday, 945 AM Wednesday, and
1030 PM Wednesday.

$$