Coastal Waters Forecast
Issued by NWS San Diego, CA

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543
FZUS56 KSGX 170902
CWFSGX

Coastal Waters Forecast for California
National Weather Service San Diego CA
202 AM PDT Thu Jul 17 2025

San Mateo Point to the Mexican border out 60 nm

PZZ700-172130-
202 AM PDT Thu Jul 17 2025

.Synopsis for the far Southern California coast...
At 2 AM, a 1035 mb high was about 900 nautical miles west of Cape
Blanco, OR and a 1008 mb low was over southern NV and southeast CA.
Generally weak onshore flow expected to persist through Monday.

$$

PZZ740-172130-
Coastal Waters from San Mateo Point to the Mexican Border and out
to 10 nm-
202 AM PDT Thu Jul 17 2025

.TODAY...Wind variable less than 10 kt...becoming W 10 kt this
afternoon. Seas 3 ft. Wave Detail: W 1 foot at 4 seconds, W
1 foot at 10 seconds and SW 3 ft at 15 seconds.
.TONIGHT...Wind NW 10 kt in the evening...becoming variable less
than 10 kt. Seas 3 to 4 ft. Wave Detail: NW 1 foot at 4 seconds,
W 2 ft at 10 seconds and SW 3 ft at 15 seconds. A slight chance
of tstms after midnight.
.FRI...Wind W 10 kt. Seas 3 to 4 ft. Wave Detail: W 2 ft at
4 seconds, W 2 ft at 9 seconds and SW 3 ft at 14 seconds.
.FRI NIGHT...Wind W 10 kt in the evening...becoming variable less
than 10 kt. Seas 3 to 4 ft. Wave Detail: W 2 ft at 5 seconds and
SW 2 ft at 14 seconds.
.SAT...Wind W 10 kt. Seas 3 to 4 ft. Wave Detail: W 2 ft at
5 seconds and S 2 ft at 14 seconds.
.SAT NIGHT...Wind W 10 kt in the evening...becoming variable less
than 10 kt. Seas 3 ft. Wave Detail: W 2 ft at 5 seconds and S
2 ft at 13 seconds.
.SUN...Wind variable less than 10 kt...becoming W 10 kt in the
afternoon. Seas 3 to 4 ft. Wave Detail: W 2 ft at 5 seconds and S
2 ft at 13 seconds.
.SUN NIGHT...Wind variable less than 10 kt. Seas 3 ft. Wave
Detail: W 2 ft at 5 seconds and S 2 ft at 13 seconds.
.MON...Wind variable less than 10 kt...becoming W 10 kt in the
afternoon. Seas 3 ft. Wave Detail: SW 2 ft at 5 seconds and S
2 ft at 12 seconds.
.MON NIGHT...Wind variable less than 10 kt. Seas 3 ft. Wave
Detail: W 2 ft at 5 seconds and S 2 ft at 13 seconds.

Winds and seas higher in and near tstms.

$$

PZZ745-172130-
Waters from San Mateo Point to the Mexican Border Extending 10 to
60 nm out including San Clemente Island-
202 AM PDT Thu Jul 17 2025

.TODAY...Wind variable less than 10 kt...becoming W 10 kt this
afternoon. Seas 3 to 4 ft. Wave Detail: W 2 ft at 4 seconds, W
1 foot at 10 seconds and S 3 ft at 15 seconds.
.TONIGHT...Wind NW 10 kt. Seas 3 to 4 ft. Wave Detail: NW 1 foot
at 4 seconds, NW 2 ft at 10 seconds and S 3 ft at 14 seconds. A
slight chance of tstms after midnight.
.FRI...Wind W 10 kt. Seas 4 ft. Wave Detail: W 2 ft at 4 seconds,
W 2 ft at 9 seconds and S 3 ft at 14 seconds.
.FRI NIGHT...Wind W 10 kt. Seas 4 ft. Wave Detail: W 3 ft at
5 seconds and S 3 ft at 13 seconds.
.SAT...Wind W 10 to 15 kt. Seas 4 ft. Wave Detail: W 3 ft at
5 seconds and S 3 ft at 14 seconds.
.SAT NIGHT...Wind W 10 to 15 kt. Seas 3 to 5 ft. Wave Detail: W
3 ft at 5 seconds and S 2 ft at 13 seconds.
.SUN...Wind variable less than 10 kt...becoming W 10 kt in the
afternoon. Seas 3 to 4 ft. Wave Detail: W 3 ft at 5 seconds and S
2 ft at 13 seconds.
.SUN NIGHT...Wind W 10 kt in the evening...becoming variable less
than 10 kt. Seas 3 to 4 ft. Wave Detail: W 2 ft at 5 seconds and
S 2 ft at 13 seconds.
.MON...Wind variable less than 10 kt...becoming W 10 kt in the
afternoon. Seas 3 ft. Wave Detail: W 2 ft at 5 seconds and S 2 ft
at 12 seconds.
.MON NIGHT...Wind variable less than 10 kt. Seas 3 to 4 ft. Wave
Detail: W 2 ft at 5 seconds and S 2 ft at 13 seconds.

Winds and seas higher in and near tstms.

$$