National Weather Service Marine Forecast FZUS56 KSEW
FZUS56 KSEW 180925
CWFSEW
Coastal Waters Forecast for Washington
National Weather Service Seattle WA
225 AM PDT Sat Apr 18 2026
Inland waters of western Washington and the northern and central Washington coastal waters including the Olympic Coast National Marine Sanctuary
PZZ100-182230
225 AM PDT Sat Apr 18 2026
.SYNOPSIS FOR THE NORTHERN AND CENTRAL WASHINGTON COASTAL AND INLAND WATERS...Onshore flow continues across the area waters with high pressure in place. A low drops south and remains offshore beyond the coastal waters this weekend through the start of next week. An associated front will cross the waters on Saturday.
PZZ150-182230
Coastal Waters From Cape Flattery To James Island Out 10 Nm
225 AM PDT Sat Apr 18 2026
TODAY
E wind 10 to 15 kt, becoming SE 5 to 10 kt late this
morning and afternoon. Seas 3 to 4 ft. Wave Detail: E 2 ft at
4 seconds, N 2 ft at 7 seconds and SW 3 ft at 11 seconds. A
slight chance of rain late.
TONIGHT
SE wind 5 to 10 kt. Seas 3 to 4 ft. Wave Detail: S
2 ft at 4 seconds and SW 4 ft at 10 seconds.
SUN
E wind 5 to 10 kt. Seas around 4 ft. Wave Detail: SW 4 ft
at 8 seconds.
SUN NIGHT
N wind around 5 kt. Seas 4 to 5 ft. Wave Detail: SW
4 ft at 9 seconds and W 4 ft at 13 seconds.
MON
NE wind around 5 kt, veering to E in the afternoon. Seas
5 to 6 ft. Wave Detail: SW 4 ft at 8 seconds and W 4 ft at
12 seconds.
MON NIGHT
S wind 5 to 10 kt. Seas 4 to 5 ft. Wave Detail: SW
3 ft at 8 seconds and W 3 ft at 10 seconds. A chance of rain
after midnight.
TUE
SW wind 5 to 10 kt. Seas 4 to 5 ft. Wave Detail: SW 3 ft
at 8 seconds, W 4 ft at 10 seconds and W 3 ft at 16 seconds. A
chance of rain.
TUE NIGHT
SW wind 5 to 10 kt. Seas 5 to 7 ft. Wave Detail: SW
2 ft at 7 seconds, W 5 ft at 9 seconds and W 7 ft at 14 seconds.
A chance of rain.
WED
SW wind 5 to 10 kt, veering to W in the afternoon. Seas
7 to 10 ft. Wave Detail: S 2 ft at 7 seconds, W 2 ft at 8 seconds
and W 10 ft at 12 seconds. A chance of rain in the morning.
WED NIGHT
W wind 5 to 10 kt, backing to S after midnight. Seas
9 to 11 ft. Wave Detail: W 10 ft at 12 seconds.
PZZ153-182230
Coastal Waters From James Island To Point Grenville Out 10 Nm
225 AM PDT Sat Apr 18 2026
TODAY
SE wind 5 to 10 kt, veering to S this afternoon. Seas
3 to 4 ft. Wave Detail: SE 2 ft at 4 seconds, NW 2 ft at
8 seconds and W 2 ft at 10 seconds. A slight chance of rain late.
TONIGHT
SE wind around 5 kt. Seas 3 to 4 ft. Wave Detail: S
2 ft at 4 seconds and SW 4 ft at 10 seconds.
SUN
E wind around 5 kt, backing to NW in the afternoon. Seas
3 to 4 ft. Wave Detail: SW 4 ft at 8 seconds.
SUN NIGHT
N wind around 5 kt. Seas 4 to 5 ft. Wave Detail: SW
4 ft at 9 seconds and W 4 ft at 13 seconds.
MON
NE wind around 5 kt, veering to S around 5 kt in the
afternoon. Seas 4 to 6 ft. Wave Detail: SW 4 ft at 8 seconds and
W 4 ft at 12 seconds.
MON NIGHT
S wind 5 to 10 kt. Seas 4 to 5 ft. Wave Detail: SW
3 ft at 8 seconds and W 3 ft at 10 seconds. A chance of rain
after midnight.
TUE
SW wind 5 to 10 kt. Seas 4 to 5 ft. Wave Detail: SW 3 ft
at 8 seconds, W 3 ft at 9 seconds and W 3 ft at 16 seconds. A
chance of rain.
TUE NIGHT
SW wind 5 to 10 kt. Seas 5 to 6 ft. Wave Detail: SW
2 ft at 7 seconds, W 5 ft at 9 seconds and W 5 ft at 14 seconds.
A chance of rain.
WED
SW wind 5 to 10 kt, veering to W in the afternoon. Seas
6 to 8 ft, building to 7 to 10 ft in the afternoon. Wave Detail:
W 9 ft at 12 seconds. A chance of rain.
WED NIGHT
W wind 5 to 10 kt, backing to S after midnight. Seas
8 to 10 ft. Wave Detail: W 10 ft at 12 seconds.
PZZ156-182230
Coastal Waters From Point Grenville To Cape Shoalwater Out 10 Nm
225 AM PDT Sat Apr 18 2026
TODAY
E wind 10 to 15 kt, becoming SE 5 to 10 kt late this
morning, veering to S this afternoon. Seas around 3 ft. Wave
Detail: SE 2 ft at 3 seconds, NW 2 ft at 8 seconds and W 2 ft at
10 seconds.
TONIGHT
SE wind around 5 kt. Seas 3 to 4 ft. Wave Detail: NW
2 ft at 8 seconds and SW 4 ft at 9 seconds.
SUN
E wind around 5 kt, backing to N in the afternoon. Seas
3 to 4 ft. Wave Detail: SW 4 ft at 8 seconds.
SUN NIGHT
W wind 5 to 10 kt, veering to N after midnight. Seas
4 to 5 ft. Wave Detail: SW 4 ft at 9 seconds and W 4 ft at
14 seconds.
MON
NE wind around 5 kt, veering to SW in the afternoon. Seas
4 to 6 ft. Wave Detail: SW 4 ft at 8 seconds and W 4 ft at
12 seconds.
MON NIGHT
SW wind 5 to 10 kt. Seas 4 to 5 ft. Wave Detail: SW
3 ft at 8 seconds, W 2 ft at 8 seconds and W 4 ft at 11 seconds.
A chance of rain.
TUE
W wind 5 to 10 kt. Seas 4 to 5 ft. Wave Detail: SW 3 ft at
8 seconds, W 4 ft at 9 seconds and W 3 ft at 16 seconds. A chance
of rain.
TUE NIGHT
W wind around 10 kt. Seas 4 to 6 ft. Wave Detail: SW
2 ft at 7 seconds, W 5 ft at 9 seconds and W 4 ft at 15 seconds.
A chance of rain.
WED
W wind 10 to 15 kt. Seas 6 to 9 ft. Wave Detail: SW 2 ft
at 7 seconds, W 5 ft at 9 seconds and W 9 ft at 12 seconds. A
chance of rain.
WED NIGHT
W wind 10 to 15 kt, becoming SW 5 to 10 kt after
midnight. Seas 8 to 10 ft. Wave Detail: W 10 ft at 12 seconds.
PZZ170-182230
Coastal Waters From Cape Flattery To James Island 10 To 60 Nm
225 AM PDT Sat Apr 18 2026
TODAY
SE wind 10 to 15 kt. Seas 3 to 5 ft. Wave Detail: SE
3 ft at 4 seconds, N 3 ft at 7 seconds and SW 4 ft at 10 seconds.
A slight chance of rain this afternoon.
TONIGHT
SE wind 10 to 15 kt, easing to 5 to 10 kt after
midnight. Seas 4 to 6 ft. Wave Detail: SE 3 ft at 5 seconds, NW
2 ft at 8 seconds and SW 5 ft at 10 seconds. A chance of rain.
SUN
E wind 5 to 10 kt. Seas 4 to 5 ft. Wave Detail: SW 5 ft at
8 seconds, W 2 ft at 12 seconds and S 2 ft at 15 seconds.
SUN NIGHT
N wind 5 to 10 kt. Seas 5 to 6 ft. Wave Detail: SW
4 ft at 9 seconds, W 4 ft at 13 seconds and S 2 ft at 15 seconds.
MON
N wind 5 to 10 kt. Seas 5 to 6 ft. Wave Detail: SW 4 ft at
8 seconds and W 4 ft at 11 seconds.
MON NIGHT
SW wind 5 to 10 kt. Seas 4 to 5 ft. Wave Detail: SW
3 ft at 8 seconds and W 4 ft at 10 seconds. A chance of rain
after midnight.
TUE
SW wind 5 to 10 kt. Seas 5 to 6 ft. Wave Detail: SW 3 ft
at 8 seconds, W 4 ft at 9 seconds and W 4 ft at 16 seconds. A
chance of rain.
TUE NIGHT
W wind 10 to 15 kt. Seas 6 to 7 ft, building to 7 to
9 ft after midnight. Wave Detail: S 2 ft at 7 seconds, NW 7 ft at
10 seconds and W 9 ft at 14 seconds. A chance of rain.
WED
NW wind 10 to 15 kt. Seas 9 to 12 ft. Wave Detail: S 2 ft
at 7 seconds and NW 12 ft at 11 seconds.
WED NIGHT
NW wind 10 to 15 kt, easing to 5 to 10 kt after
midnight. Seas 10 to 13 ft. Wave Detail: NW 12 ft at 11 seconds.
PZZ173-182230
Coastal Waters From James Island To Point Grenville 10 To 60 Nm
225 AM PDT Sat Apr 18 2026
TODAY
SE wind 10 to 15 kt. Seas 3 to 4 ft, building to 4 to
6 ft this afternoon. Wave Detail: SE 3 ft at 4 seconds, NW 2 ft
at 8 seconds and SW 4 ft at 10 seconds. A slight chance of rain
this afternoon.
TONIGHT
SE wind 10 to 15 kt. Seas 4 to 6 ft. Wave Detail: SE
3 ft at 4 seconds, SW 5 ft at 9 seconds and S 2 ft at 15 seconds.
A chance of rain.
SUN
E wind 5 to 10 kt, backing to NE in the afternoon. Seas
4 to 5 ft. Wave Detail: SW 5 ft at 9 seconds, W 2 ft at
12 seconds and S 2 ft at 15 seconds. A chance of rain in the
morning.
SUN NIGHT
NW wind around 5 kt. Seas 5 to 6 ft. Wave Detail: SW
4 ft at 8 seconds, W 5 ft at 13 seconds and S 2 ft at 15 seconds.
MON
N wind 5 to 10 kt, backing to W in the afternoon. Seas
5 to 6 ft. Wave Detail: SW 4 ft at 8 seconds and W 5 ft at
12 seconds.
MON NIGHT
SW wind 5 to 10 kt. Seas 4 to 5 ft. Wave Detail: SW
3 ft at 7 seconds and W 4 ft at 10 seconds. A chance of rain
after midnight.
TUE
W wind 5 to 10 kt. Seas 4 to 6 ft. Wave Detail: S 3 ft at
8 seconds, NW 4 ft at 10 seconds and W 4 ft at 16 seconds. A
chance of rain.
TUE NIGHT
W wind 10 to 15 kt. Seas 6 to 7 ft, building to 6 to
9 ft after midnight. Wave Detail: S 2 ft at 7 seconds, NW 7 ft at
9 seconds and W 9 ft at 14 seconds. A chance of rain.
WED
NW wind 10 to 15 kt, rising to 15 to 20 kt in the
afternoon. Seas 9 to 13 ft. Wave Detail: S 2 ft at 7 seconds and
NW 12 ft at 13 seconds. A chance of rain in the morning.
WED NIGHT
NW wind 10 to 15 kt, easing to 5 to 10 kt after
midnight. Seas 11 to 13 ft. Wave Detail: NW 13 ft at 11 seconds.
PZZ176-182230
Coastal Waters From Point Grenville To Cape Shoalwater 10 To
60 Nm
225 AM PDT Sat Apr 18 2026
TODAY
SE wind 10 to 15 kt, becoming S 5 to 10 kt late. Seas
3 to 5 ft. Wave Detail: E 3 ft at 4 seconds, NW 3 ft at 8 seconds
and SW 4 ft at 10 seconds. A slight chance of rain this
afternoon.
TONIGHT
SE wind 10 to 15 kt, easing to 5 to 10 kt after
midnight. Seas 4 to 5 ft. Wave Detail: SE 2 ft at 4 seconds, NW
2 ft at 8 seconds and SW 5 ft at 9 seconds. A chance of rain
after midnight.
SUN
E wind 5 to 10 kt. Seas 4 to 5 ft. Wave Detail: SW 4 ft at
9 seconds and S 2 ft at 15 seconds. A chance of rain in the
morning.
SUN NIGHT
SW wind 5 to 10 kt, veering to N after midnight.
Seas 4 to 6 ft. Wave Detail: SW 4 ft at 8 seconds, W 5 ft at
13 seconds and S 2 ft at 15 seconds.
MON
N wind 5 to 10 kt, backing to W in the afternoon. Seas
5 to 6 ft. Wave Detail: SW 4 ft at 8 seconds and W 5 ft at
12 seconds.
MON NIGHT
SW wind 5 to 10 kt. Seas 4 to 5 ft. Wave Detail: W
3 ft at 7 seconds and W 4 ft at 10 seconds. A chance of rain.
TUE
W wind 5 to 10 kt. Seas 4 to 6 ft. Wave Detail: S 3 ft at
8 seconds, W 4 ft at 10 seconds and W 3 ft at 16 seconds. A
chance of rain.
TUE NIGHT
W wind 10 to 15 kt. Seas 5 to 6 ft, building to 6 to
8 ft after midnight. Wave Detail: S 2 ft at 7 seconds, NW 6 ft at
9 seconds and W 8 ft at 14 seconds. A chance of rain.
WED
NW wind around 15 kt. Seas 8 to 11 ft, building to 10 to
12 ft in the afternoon. Wave Detail: NW 12 ft at 12 seconds. A
chance of rain in the morning.
WED NIGHT
NW wind 10 to 15 kt. Seas 10 to 12 ft. Wave Detail:
NW 12 ft at 11 seconds.
PZZ130-182230
West Entrance U.S. Waters Strait Of Juan De Fuca
225 AM PDT Sat Apr 18 2026
TODAY
SE wind 10 to 15 kt, becoming E 5 to 10 kt late. Seas
around 3 ft. Wave Detail: E 2 ft at 3 seconds and SW 2 ft at
10 seconds.
TONIGHT
E wind 5 to 10 kt. Seas around 3 ft. Wave Detail: SW
2 ft at 10 seconds.
SUN
E wind 5 to 10 kt. Seas around 3 ft. Wave Detail: E 2 ft
at 3 seconds and SW 2 ft at 9 seconds.
SUN NIGHT
N wind around 5 kt. Seas 3 to 4 ft. Wave Detail: SW
2 ft at 9 seconds and W 3 ft at 12 seconds.
MON
E wind 5 to 10 kt. Seas 3 to 4 ft. Wave Detail: E 2 ft at
3 seconds and W 4 ft at 12 seconds.
MON NIGHT
SW wind 5 to 10 kt. Seas 3 to 4 ft. Wave Detail: W
3 ft at 10 seconds. A chance of rain after midnight.
TUE
W wind 5 to 10 kt. Seas 3 to 4 ft. Wave Detail: W 3 ft at
9 seconds and W 2 ft at 16 seconds. A chance of rain.
TUE NIGHT
W wind 5 to 10 kt. Seas 3 to 5 ft. Wave Detail: W
4 ft at 9 seconds and W 4 ft at 14 seconds. A chance of rain.
WED
SW wind 5 to 10 kt. Seas 5 to 7 ft. Wave Detail: W 7 ft at
13 seconds. A chance of rain.
WED NIGHT
W wind 5 to 10 kt. Seas 5 to 7 ft. Wave Detail: W
7 ft at 12 seconds.
PZZ131-182230
Central U.S. Waters Strait Of Juan De Fuca
225 AM PDT Sat Apr 18 2026
TODAY
E wind 5 to 10 kt. Waves around 2 ft or less.
TONIGHT
E wind around 5 kt. Waves around 1 ft or less.
SUN
E wind 5 to 10 kt. Waves around 2 ft or less.
SUN NIGHT
W wind around 5 kt. Waves around 1 ft or less.
MON
E 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
W wind 5 to 10 kt, rising to 10 to 15 kt in the afternoon.
Waves around 2 ft or less, then around 3 ft in the afternoon. A
chance of rain.
TUE NIGHT
W wind 10 to 15 kt, easing to 5 to 10 kt after
midnight. Waves around 3 ft. A chance of rain.
WED
W wind 5 to 10 kt, backing to SW in the afternoon. Waves
2 ft or less. A chance of rain.
WED NIGHT
W wind 5 to 10 kt. Waves 2 ft or less.
PZZ132-182230
East Entrance U.S. Waters Strait Of Juan De Fuca
225 AM PDT Sat Apr 18 2026
TODAY
N wind around 5 kt. Waves around 1 ft or less.
TONIGHT
NW wind around 5 kt. Waves around 1 ft or less.
SUN
NW wind around 5 kt. Waves around 1 ft or less.
SUN NIGHT
W wind around 5 kt. Waves around 1 ft or less.
MON
NW wind around 5 kt. Waves around 1 ft or less.
MON NIGHT
W wind around 5 kt. Waves around 1 ft or less.
TUE
W wind 5 to 10 kt. Waves around 2 ft or less. A chance of
rain.
TUE NIGHT
W wind 5 to 10 kt. Waves around 2 ft or less. A
chance of rain.
WED
SW wind around 5 kt, backing to E in the afternoon. Waves
around 1 ft or less. A chance of rain.
WED NIGHT
S wind around 5 kt. Waves around 1 ft or less.
PZZ134-182230
Admiralty Inlet
225 AM PDT Sat Apr 18 2026
TODAY
NW wind around 5 kt, veering to SE late this morning and
early afternoon, veering to NW late. Waves around 1 ft or less.
TONIGHT
NW wind around 5 kt. Waves around 1 ft or less.
SUN
NW wind 5 to 10 kt. 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.
MON
NW wind 5 to 10 kt. Waves around 2 ft or less.
MON NIGHT
NW wind around 5 kt, backing to SW after midnight.
Waves around 1 ft or less.
TUE
S wind around 5 kt, veering to NW in the afternoon. Waves
around 1 ft or less. A chance of rain.
TUE NIGHT
NW wind around 5 kt, backing to S after midnight.
Waves around 1 ft or less. A chance of rain.
WED
SE wind around 5 kt. Waves around 1 ft or less. A chance
of rain.
WED NIGHT
S wind around 5 kt. Waves around 1 ft or less. A
chance of rain in the evening.
PZZ133-182230
Northern Inland Waters Including The San Juan Islands
225 AM PDT Sat Apr 18 2026
TODAY
E wind around 5 kt, backing to N this afternoon. Waves
around 1 ft or less.
TONIGHT
NE wind around 5 kt. Waves around 1 ft or less.
SUN
NE wind around 5 kt, backing to NW in the afternoon. Waves
around 1 ft or less.
SUN NIGHT
NW wind 5 to 10 kt, becoming W after midnight. Waves
around 2 ft or less.
MON
N wind around 5 kt, backing to NW in the afternoon. Waves
around 1 ft or less.
MON NIGHT
SW wind around 5 kt. Waves around 1 ft or less.
TUE
S wind around 5 kt, veering to SW in the afternoon. Waves
around 1 ft or less.
TUE NIGHT
SW wind around 5 kt. Waves around 1 ft or less. A
chance of rain.
WED
SW wind around 5 kt. Waves around 1 ft or less. A chance
of rain in the morning.
WED NIGHT
S wind around 5 kt. Waves around 1 ft or less.
PZZ135-182230
Puget Sound and Hood Canal
225 AM PDT Sat Apr 18 2026
TODAY
NE wind around 5 kt, veering to SE this afternoon. Waves
around 1 ft or less.
TONIGHT
N wind around 5 kt. Waves around 1 ft or less.
SUN
N wind around 5 kt, rising to 5 to 10 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.
MON
N wind around 5 kt. Waves around 1 ft or less.
MON NIGHT
SW wind around 5 kt. Waves around 1 ft or less.
TUE
S wind around 5 kt, veering to SW in the afternoon. Waves
around 1 ft or less. A chance of rain.
TUE NIGHT
SW wind 5 to 10 kt. Waves around 2 ft or less. A
chance of rain.
WED
S wind 5 to 10 kt. Waves around 2 ft or less. A chance of
rain.
WED NIGHT
S wind 5 to 10 kt. Waves around 2 ft or less. A
chance of rain in the evening.
PZZ110-182230
Grays Harbor Bar
225 AM PDT Sat Apr 18 2026
Combined seas 2 to 4 ft, except building to 5 ft during the ebbs. Bar conditions light. Maximum ebb currents will occur around 545 AM this morning, 600 PM this afternoon and 615 AM Sunday morning. The morning ebbs will be very strong.