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FZUS56 KEKA 182142
CWFEKA

Coastal Waters Forecast for Northwest California
National Weather Service Eureka CA
242 PM PDT Tue Aug 18 2026

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

PZZ400-191015-
242 PM PDT Tue Aug 18 2026

.SYNOPSIS FOR NORTHERN CALIFORNIA WATERS...Moderate to fresh
northerly breezes continue in the outer waters with gusts to 28
kts. Closer to the coast much lighter north and west winds will
persist with gusts generally below 12 kts. Some stronger gusts
will briefly push closer to shore downwind of Cape Mendocino
Tuesday night. Alongside the winds, short period waves remain
steep on the outer waters, especially south of Cape Mendocino. A
small long period south swell up to 3 feet will persist through
early in the week. Winds will diminish late in the week.

$$

PZZ450-191015-
Coastal waters from Pt. St. George to Cape Mendocino CA out 10 nm-
242 PM PDT Tue Aug 18 2026

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

$$

PZZ470-191015-
Waters from Pt. St. George to Cape Mendocino CA from 10 to 60 nm-
242 PM PDT Tue Aug 18 2026

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

.TONIGHT...N wind 20 to 25 kt. Seas 8 ft. Wave Detail: N
8 ft at 9 seconds and SW 3 ft at 14 seconds.
.WED...N wind 20 to 25 kt. Seas 8 ft. Wave Detail: N 8 ft
at 9 seconds and W 3 ft at 13 seconds.
.WED NIGHT...N wind 10 to 15 kt. Seas 7 ft. Wave Detail:
NW 7 ft at 8 seconds and S 2 ft at 15 seconds.
.THU...N wind 10 to 15 kt. Seas 6 ft. Wave Detail: NW 6 ft
at 8 seconds and S 2 ft at 15 seconds.
.THU NIGHT...NW wind 5 to 10 kt. Seas 5 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
4 ft at 8 seconds and S 2 ft at 14 seconds.
.FRI NIGHT...N wind 5 to 10 kt. Seas 4 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 4 ft
at 8 seconds and S 2 ft at 14 seconds.
.SAT NIGHT...N wind 20 to 25 kt. Seas 6 ft. Wave Detail: N
6 ft at 7 seconds and S 2 ft at 15 seconds.
.SUN...N wind 20 to 25 kt. Seas 8 ft. Wave Detail: N 8 ft
at 9 seconds and S 2 ft at 15 seconds.
.SUN NIGHT...N wind 20 to 25 kt. Seas 8 ft. Wave Detail: N
8 ft at 9 seconds and S 2 ft at 16 seconds.

$$

PZZ455-191015-
Coastal waters from Cape Mendocino to Pt. Arena CA out 10 nm-
242 PM PDT Tue Aug 18 2026

...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT...

.TONIGHT...N wind 20 to 25 kt. Gusts up to 35 kt this evening.
Seas 7 ft. Wave Detail: NW 7 ft at 8 seconds and SW 3 ft
at 14 seconds.
.WED...NW wind 15 to 20 kt. Seas 7 ft. Wave Detail: NW
6 ft at 9 seconds and W 3 ft at 14 seconds.
.WED NIGHT...NW wind 15 to 20 kt. Seas 6 ft. Wave Detail:
NW 6 ft at 9 seconds and SW 2 ft at 15 seconds.
.THU...NW wind 10 to 15 kt. Seas 6 ft. Wave Detail: NW
6 ft at 8 seconds and S 2 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 5 ft. Wave Detail: NW
5 ft at 7 seconds and S 2 ft at 14 seconds.
.FRI NIGHT...N wind 10 to 15 kt. Seas 5 ft. Wave Detail:
NW 5 ft at 7 seconds and S 2 ft at 14 seconds.
.SAT...NW wind 15 to 20 kt. Seas 5 ft. Wave Detail: NW
5 ft at 7 seconds and S 2 ft at 14 seconds.
.SAT NIGHT...N wind 15 to 20 kt. Seas 5 ft. Wave Detail:
NW 5 ft at 7 seconds and S 2 ft at 15 seconds.
.SUN...NW wind 10 to 15 kt. Seas 5 ft. Wave Detail: NW
5 ft at 9 seconds and S 2 ft at 15 seconds.
.SUN NIGHT...N wind 10 to 15 kt. Seas 6 ft. Wave Detail:
NW 6 ft at 9 seconds and S 2 ft at 16 seconds. Patchy fog.

$$

PZZ475-191015-
Waters from Cape Mendocino to Pt. Arena CA from 10 to 60 nm-
242 PM PDT Tue Aug 18 2026

...SMALL CRAFT ADVISORY IN EFFECT THROUGH THURSDAY MORNING...

.TONIGHT...N wind 20 to 25 kt. Gusts up to 35 kt this evening.
Seas 9 ft. Wave Detail: NW 9 ft at 9 seconds and SW 3 ft
at 14 seconds.
.WED...N wind 20 to 25 kt. Seas 9 ft. Wave Detail: N 9 ft
at 9 seconds and W 3 ft at 14 seconds.
.WED NIGHT...N wind 20 to 25 kt. Seas 8 ft. Wave Detail: N
8 ft at 9 seconds and S 2 ft at 15 seconds.
.THU...NW wind 15 to 20 kt. Seas 7 ft. Wave Detail: NW
7 ft at 8 seconds and S 2 ft at 15 seconds.
.THU NIGHT...NW wind 10 to 15 kt. Seas 7 ft. Wave Detail:
NW 7 ft at 7 seconds and S 2 ft at 15 seconds.
.FRI...NW wind 10 to 15 kt. Seas 6 ft. Wave Detail: NW
6 ft at 7 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 6 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 7 ft. Wave Detail:
NW 7 ft at 8 seconds and S 2 ft at 15 seconds.
.SUN...N wind 20 to 25 kt. Seas 8 ft. Wave Detail: N 8 ft
at 9 seconds and S 2 ft at 15 seconds.
.SUN NIGHT...N wind 20 to 25 kt. Seas 8 ft. Wave Detail: N
8 ft at 9 seconds and S 2 ft at 15 seconds.

$$