512
FZUS56 KEKA 172147
CWFEKA

Coastal Waters Forecast for Northwest California
National Weather Service Eureka CA
247 PM PDT Mon Aug 17 2026

WATERS FROM PT ST GEORGE TO PT ARENA AND OUT 60 NM

PZZ400-181030-
247 PM PDT Mon Aug 17 2026

.SYNOPSIS FOR NORTHERN CALIFORNIA WATERS...Moderate to fresh
northerly breezes continue this evening. Closer to the coast
lighter winds are expected with some local southerly winds up to
15 kt again this evening and tonight. Northerly winds increase
again Tuesday. A small long period south swell up to 3 feet will
persist through early in the week. Winds are expected to diminish
again late in the week.

$$

PZZ450-181030-
Coastal waters from Pt. St. George to Cape Mendocino CA out 10 nm-
247 PM PDT Mon Aug 17 2026

.TONIGHT...NW wind 5 to 10 kt. Seas 6 ft. Wave Detail: NW
6 ft at 8 seconds and SW 2 ft at 15 seconds. Patchy dense fog
after midnight.
.TUE...NW wind 10 to 15 kt. Seas 6 ft. Wave Detail: NW
5 ft at 7 seconds and SW 2 ft at 14 seconds. Patchy dense fog.
.TUE NIGHT...NW wind 5 to 10 kt. Seas 6 ft. Wave Detail:
NW 6 ft at 8 seconds and W 2 ft at 14 seconds. Patchy dense fog.
.WED...NW wind 5 to 10 kt. Seas 6 ft. Wave Detail: NW 6 ft
at 8 seconds and W 3 ft at 13 seconds.
.WED NIGHT...N wind 5 to 10 kt. Seas 6 ft. Wave Detail: NW
5 ft at 8 seconds and W 3 ft at 12 seconds.
.THU...NW wind 5 kt. Seas 5 ft. Wave Detail: NW
5 ft at 8 seconds and SW 3 ft at 15 seconds.
.THU NIGHT...N wind 5 kt. Seas 5 ft. Wave Detail:
NW 5 ft at 9 seconds and SW 1 foot at 15 seconds.
.FRI...NW wind 5 kt. Seas 4 ft. Wave Detail: NW
4 ft at 8 seconds and SW 1 foot at 14 seconds.
.FRI NIGHT...N wind 5 kt. Seas 4 ft. Wave Detail:
NW 4 ft at 9 seconds and SW 1 foot at 14 seconds.
.SAT...N wind 5 to 10 kt. Seas 4 ft. Wave Detail: NW 4 ft
at 8 seconds and SW 1 foot at 14 seconds.
.SAT NIGHT...N wind 5 to 10 kt. Seas 5 ft. Wave Detail: NW
5 ft at 7 seconds and SW 1 foot at 15 seconds.

$$

PZZ470-181030-
Waters from Pt. St. George to Cape Mendocino CA from 10 to 60 nm-
247 PM PDT Mon Aug 17 2026

...SMALL CRAFT ADVISORY IN EFFECT THROUGH WEDNESDAY EVENING...

.TONIGHT...NW wind 15 to 20 kt. Seas 8 ft. Wave Detail: N
8 ft at 8 seconds and S 3 ft at 15 seconds.
.TUE...N wind 15 to 20 kt. Seas 8 ft. Wave Detail: N 8 ft
at 7 seconds and S 3 ft at 14 seconds.
.TUE NIGHT...N wind 20 to 25 kt. Seas 9 ft. Wave Detail:
NW 9 ft at 9 seconds and SW 3 ft at 14 seconds.
.WED...N wind 15 to 20 kt. Seas 9 ft. Wave Detail: NW 9 ft
at 9 seconds and W 4 ft at 13 seconds.
.WED NIGHT...N wind 10 to 15 kt. Seas 8 ft. Wave Detail: N
7 ft at 7 seconds and W 4 ft at 13 seconds.
.THU...N wind 10 to 15 kt. Seas 6 ft. Wave Detail: NW 6 ft
at 8 seconds and SW 3 ft at 15 seconds.
.THU NIGHT...N wind 5 to 10 kt. Seas 6 ft. Wave Detail: NW
5 ft at 8 seconds and S 2 ft at 15 seconds.
.FRI...NW wind 5 kt. Seas 5 ft. Wave Detail: NW
5 ft at 8 seconds and S 2 ft at 14 seconds.
.FRI NIGHT...N wind 5 to 10 kt. Seas 5 ft. Wave Detail: NW
4 ft at 8 seconds and S 2 ft at 14 seconds.
.SAT...N wind 10 to 15 kt. Seas 5 ft. Wave Detail: NW 5 ft
at 8 seconds and S 2 ft at 14 seconds.
.SAT NIGHT...N wind 20 to 25 kt. Seas 7 ft. Wave Detail:
NW 7 ft at 7 seconds and S 2 ft at 15 seconds.

$$

PZZ455-181030-
Coastal waters from Cape Mendocino to Pt. Arena CA out 10 nm-
247 PM PDT Mon Aug 17 2026

.TONIGHT...NW wind 15 to 20 kt. Seas 6 ft. Wave Detail: NW
6 ft at 8 seconds and SW 2 ft at 14 seconds. Patchy dense fog
after midnight.
.TUE...NW wind 20 to 25 kt with gusts up to 40 kt. Seas
7 ft. Wave Detail: NW 7 ft at 8 seconds and SW 2 ft at
14 seconds.
.TUE NIGHT...NW wind 15 to 20 kt. Seas 8 ft. Wave Detail:
NW 8 ft at 8 seconds and SW 3 ft at 14 seconds.
.WED...NW wind 15 to 20 kt. Seas 8 ft. Wave Detail: NW
8 ft at 8 seconds and W 3 ft at 14 seconds.
.WED NIGHT...NW wind 15 to 20 kt. Seas 8 ft. Wave Detail:
NW 7 ft at 8 seconds and W 4 ft at 14 seconds.
.THU...NW wind 10 to 15 kt. Seas 6 ft. Wave Detail: NW
6 ft at 8 seconds and SW 3 ft at 15 seconds.
.THU NIGHT...NW wind 10 to 15 kt. Seas 6 ft. Wave Detail:
NW 6 ft at 8 seconds and S 2 ft at 15 seconds.
.FRI...NW wind 10 to 15 kt. Seas 6 ft. Wave Detail: NW
5 ft at 8 seconds and S 2 ft at 14 seconds.
.FRI NIGHT...N wind 10 to 15 kt. Seas 6 ft. Wave Detail:
NW 6 ft at 7 seconds and S 2 ft at 14 seconds.
.SAT...NW wind 15 to 20 kt. Seas 6 ft. Wave Detail: NW
6 ft at 7 seconds and S 2 ft at 14 seconds.
.SAT NIGHT...N wind 15 to 20 kt. Seas 7 ft. Wave Detail:
NW 7 ft at 7 seconds and S 2 ft at 15 seconds.

$$

PZZ475-181030-
Waters from Cape Mendocino to Pt. Arena CA from 10 to 60 nm-
247 PM PDT Mon Aug 17 2026

...SMALL CRAFT ADVISORY IN EFFECT THROUGH WEDNESDAY EVENING...

.TONIGHT...NW wind 15 to 20 kt. Seas 8 ft. Wave Detail: N
8 ft at 8 seconds and S 3 ft at 14 seconds.
.TUE...N wind 20 to 25 kt with gusts up to 35 kt. Seas
9 ft. Wave Detail: N 9 ft at 8 seconds and S 2 ft at 14 seconds.
.TUE NIGHT...N wind 20 to 25 kt with gusts up to 35 kt. Seas
around 10 ft. Wave Detail: NW 10 ft at 8 seconds and SW 3 ft at
14 seconds.
.WED...N wind 20 to 25 kt. Seas 10 ft. Wave Detail: N
10 ft at 9 seconds and W 3 ft at 13 seconds.
.WED NIGHT...N wind 20 to 25 kt. Seas 9 ft. Wave Detail: N
9 ft at 8 seconds and W 4 ft at 13 seconds.
.THU...N wind 15 to 20 kt. Seas 8 ft. Wave Detail: N 8 ft
at 8 seconds and SW 4 ft at 15 seconds.
.THU NIGHT...NW wind 10 to 15 kt. Seas 6 ft. Wave Detail:
NW 6 ft at 8 seconds and S 2 ft at 15 seconds.
.FRI...NW wind 10 to 15 kt. Seas 6 ft. Wave Detail: NW
6 ft at 8 seconds and S 2 ft at 14 seconds.
.FRI NIGHT...N wind 15 to 20 kt. Seas 6 ft. Wave Detail:
NW 6 ft at 7 seconds and S 2 ft at 14 seconds.
.SAT...N wind 15 to 20 kt. Seas 7 ft. Wave Detail: NW 7 ft
at 7 seconds and S 2 ft at 14 seconds.
.SAT NIGHT...N wind 20 to 25 kt. Seas 8 ft. Wave Detail:
NW 8 ft at 8 seconds and S 2 ft at 14 seconds.

$$