Coastal Waters Forecast
Issued by NWS Eureka, CA

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FZUS56 KEKA 171718
CWFEKA

Coastal Waters Forecast for Northwest California
National Weather Service Eureka CA
1018 AM PDT Sun Aug 17 2025

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

PZZ400-180630-
1018 AM PDT Sun Aug 17 2025

.SYNOPSIS FOR NORTHERN CALIFORNIA WATERS....Light to moderate
northerly breezes will continue across the coastal waters, with
isolated gusty winds around 20 to 25 knots in the lee of Cape
Mendocino each afternoon. A NW swell around 4 to 6 feet at around
10 seconds will persist through today, before slowly subsiding
through mid next week. Relatively calm conditions with lighter
winds and low seas is expected early in the week, before fresh to
strong winds and steep seas develops by mid to late in the week.

$$

PZZ450-180630-
Pt St George to Cape Mendocino out 10 nm-
1018 AM PDT Sun Aug 17 2025

.REST OF TODAY...NW wind 5 kt. Seas 6 ft. Wave
Detail: NW 6 ft at 10 seconds.
.TONIGHT...NE wind 5 kt. Seas 5 ft. Wave Detail: NW
5 ft at 10 seconds. Patchy dense fog.
.MON...NW wind 5 kt. Seas 5 ft. Wave Detail: NW
5 ft at 10 seconds. Patchy dense fog.
.MON NIGHT...N wind 5 to 10 kt. Seas 4 ft. Wave Detail: NW
4 ft at 9 seconds.
.TUE...N wind 5 kt. Seas 4 ft. Wave Detail: NW 4 ft
at 10 seconds.
.TUE NIGHT...N wind 5 to 10 kt. Seas 4 ft. Wave Detail: NW
4 ft at 9 seconds.
.WED...N wind 5 to 10 kt. Seas 4 ft. Wave Detail: NW 2 ft
at 5 seconds and NW 3 ft at 9 seconds.
.WED NIGHT...N wind 5 to 10 kt. Seas 4 ft. Wave Detail: NW
3 ft at 6 seconds and NW 3 ft at 9 seconds.
.THU...N wind 5 to 10 kt. Seas 3 ft. Wave Detail: NW 3 ft
at 8 seconds and S 1 foot at 15 seconds.
.THU NIGHT...N wind 5 to 10 kt. Seas 3 ft. Wave Detail: NW
3 ft at 7 seconds.

$$

PZZ470-180630-
Pt St George to Cape Mendocino 10 to 60 nm-
1018 AM PDT Sun Aug 17 2025

.REST OF TODAY...NW wind 5 kt. Seas 6 ft. Wave
Detail: NW 6 ft at 10 seconds and S 2 ft at 14 seconds.
.TONIGHT...N wind 5 kt. Seas 5 ft. Wave Detail: NW
5 ft at 10 seconds and S 2 ft at 14 seconds. Patchy dense fog.
.MON...SW wind 5 kt. Seas 5 ft. Wave Detail: NW
5 ft at 9 seconds. Patchy dense fog.
.MON NIGHT...N wind 5 kt. Seas 4 ft. Wave Detail:
NW 4 ft at 9 seconds.
.TUE...N wind 5 kt. Seas 4 ft. Wave Detail: NW 4 ft
at 10 seconds.
.TUE NIGHT...N wind 5 to 10 kt. Seas 4 ft. Wave Detail: NW
4 ft at 9 seconds.
.WED...N wind 10 to 15 kt. Seas 5 ft. Wave Detail: N 4 ft
at 5 seconds and NW 3 ft at 9 seconds.
.WED NIGHT...N wind 15 to 20 kt. Seas 6 ft. Wave Detail: N
5 ft at 5 seconds and NW 3 ft at 9 seconds.
.THU...N wind 15 to 20 kt. Seas 6 ft. Wave Detail: N 6 ft
at 7 seconds and SW 2 ft at 15 seconds.
.THU NIGHT...N wind 20 to 25 kt. Seas 7 ft. Wave Detail: N
7 ft at 7 seconds and SW 2 ft at 15 seconds.

$$

PZZ455-180630-
Cape Mendocino to Pt Arena out 10 nm-
1018 AM PDT Sun Aug 17 2025

.REST OF TODAY...NW wind 10 to 15 kt. Seas 7 ft. Wave
Detail: NW 4 ft at 5 seconds and NW 5 ft at 10 seconds.
.TONIGHT...NW wind 10 to 15 kt. Seas 6 ft. Wave Detail: NW
4 ft at 4 seconds and NW 5 ft at 10 seconds. Patchy dense fog.
.MON...NW wind 5 to 10 kt. Seas 5 ft. Wave Detail: NW 3 ft
at 4 seconds and NW 4 ft at 10 seconds.
.MON NIGHT...NW wind 10 to 15 kt. Seas 5 ft. Wave Detail:
NW 3 ft at 4 seconds and NW 4 ft at 9 seconds.
.TUE...NW wind 10 to 15 kt. Seas 5 ft. Wave Detail: NW
3 ft at 4 seconds and NW 3 ft at 10 seconds.
.TUE NIGHT...N wind 10 to 15 kt. Seas 5 ft. Wave Detail: N
4 ft at 5 seconds and NW 3 ft at 10 seconds.
.WED...NW wind 15 to 20 kt. Seas 5 ft. Wave Detail: N 4 ft
at 5 seconds and NW 3 ft at 9 seconds.
.WED NIGHT...N wind 15 to 20 kt. Seas 5 ft. Wave Detail: N
5 ft at 5 seconds and NW 3 ft at 9 seconds.
.THU...NW wind 15 to 20 kt. Seas 5 ft. Wave Detail: N 5 ft
at 6 seconds and SW 2 ft at 15 seconds.
.THU NIGHT...NW wind 15 to 20 kt. Seas 5 ft. Wave Detail:
N 5 ft at 7 seconds and SW 2 ft at 15 seconds.

$$

PZZ475-180630-
Cape Mendocino to Pt Arena 10 to 60 nm-
1018 AM PDT Sun Aug 17 2025

.REST OF TODAY...NW wind 10 to 15 kt. Seas 7 ft. Wave
Detail: NW 4 ft at 5 seconds and NW 6 ft at 10 seconds.
.TONIGHT...NW wind 5 to 10 kt. Seas 6 ft. Wave Detail: NW
4 ft at 4 seconds and NW 5 ft at 10 seconds.
.MON...NW wind 5 to 10 kt. Seas 5 ft. Wave Detail: NW 3 ft
at 4 seconds and NW 5 ft at 10 seconds.
.MON NIGHT...NW wind 10 to 15 kt. Seas 5 ft. Wave Detail:
NW 4 ft at 4 seconds and NW 4 ft at 9 seconds.
.TUE...NW wind 10 to 15 kt. Seas 6 ft. Wave Detail: N 4 ft
at 5 seconds and NW 4 ft at 10 seconds.
.TUE NIGHT...N wind 15 to 20 kt. Seas 6 ft. Wave Detail: N
5 ft at 5 seconds and NW 4 ft at 10 seconds.
.WED...N wind 15 to 20 kt. Seas 5 ft. Wave Detail: N 5 ft
at 5 seconds and NW 3 ft at 9 seconds.
.WED NIGHT...N wind 20 to 25 kt. Seas 6 ft. Wave Detail: N
6 ft at 6 seconds and NW 3 ft at 9 seconds.
.THU...N wind 20 to 25 kt. Seas 7 ft. Wave Detail: N 6 ft
at 6 seconds and SW 2 ft at 15 seconds.
.THU NIGHT...N wind 20 to 25 kt. Seas 7 ft. Wave Detail: N
7 ft at 7 seconds and S 2 ft at 15 seconds.

$$