FZUS56 KLOX 180954 CWFLOX Coastal Waters Forecast for California National Weather Service Los Angeles/Oxnard CA 254 AM PDT Tue Aug 18 2026 Point Piedras Blancas to San Mateo Point CA out 60 NM including the Channel Islands National Marine Sanctuary. 254 AM PDT Tue Aug 18 2026 .Synopsis for the southern California coast and Santa Barbara Channel including the Channel Islands National Marine Sanctuary and National Park...at 08Z or 1 AM PDT, a 1028 mb surface high was about 500 NM W of Portland, while a 1008 mb thermal low was located over southern Nevada. Gusty northwest winds and steep, choppy seas will affect much of the waters over the next several days.
Point Piedras Blancas to Point Sal westward out to 10 NM- 254 AM PDT Tue Aug 18 2026
TODAY NW wind 5 to 10 kt, becoming 10 to 20 kt this afternoon. Seas 4 to 6 ft. Wave Detail: NW 5 ft at 7 seconds and S 2 ft at 14 seconds. Patchy fog this morning.
TONIGHT NW wind 10 to 20 kt. Seas 5 to 7 ft. Wave Detail: NW 6 ft at 7 seconds and S 2 ft at 15 seconds. Patchy fog.
WED NW wind 10 to 15 kt, becoming 15 to 20 kt in the afternoon. Seas 4 to 6 ft. Wave Detail: NW 6 ft at 8 seconds and S 2 ft at 15 seconds. Patchy fog in the morning.
WED NIGHT NW wind 15 to 20 kt, becoming 10 to 15 kt after midnight. Seas 5 to 7 ft. Wave Detail: NW 6 ft at 8 seconds and S 2 ft at 15 seconds. Patchy fog.
THU NW wind 10 to 15 kt, becoming 15 to 20 kt in the afternoon. Seas 5 to 7 ft. Wave Detail: NW 6 ft at 8 seconds and S 2 ft at 15 seconds. Patchy fog in the morning.
THU NIGHT NW wind 10 to 20 kt. Seas 5 to 7 ft. Wave Detail: NW 6 ft at 8 seconds and S 2 ft at 14 seconds. Patchy fog.
FRI NW wind 10 to 15 kt, becoming 15 to 25 kt in the afternoon. Seas 4 to 6 ft. Wave Detail: NW 5 ft at 8 seconds and S 2 ft at 14 seconds. Patchy fog in the morning.
FRI NIGHT NW wind 15 to 25 kt. Seas 5 to 7 ft. Wave Detail: NW 7 ft at 8 seconds and S 2 ft at 14 seconds.
SAT NW wind 15 to 25 kt, becoming 20 to 25 kt in the afternoon. Seas 5 to 6 ft. Wave Detail: NW 6 ft at 7 seconds and S 2 ft at 14 seconds.
SAT NIGHT NW wind 15 to 25 kt, becoming 10 to 20 kt after midnight. Seas 5 to 7 ft. Wave Detail: NW 6 ft at 8 seconds and S 2 ft at 15 seconds.
Point Piedras Blancas to Point Sal from 10 to 60 NM- 254 AM PDT Tue Aug 18 2026
...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT...
TODAY NW wind 20 to 25 kt. Seas 6 to 7 ft. Wave Detail: NW 7 ft at 7 seconds and S 2 ft at 14 seconds. Patchy fog this morning.
TONIGHT NW wind 20 to 25 kt. Seas 7 to 9 ft. Wave Detail: NW 8 ft at 7 seconds and S 2 ft at 14 seconds. Patchy fog.
WED NW wind 15 to 20 kt. Seas 6 to 8 ft. Wave Detail: NW 8 ft at 8 seconds and S 2 ft at 15 seconds. Patchy fog in the morning.
WED NIGHT NW wind 20 to 25 kt. Seas 8 to 9 ft. Wave Detail: NW 9 ft at 8 seconds and S 2 ft at 15 seconds. Patchy fog.
THU NW wind 20 to 25 kt. Seas 7 to 9 ft. Wave Detail: NW 8 ft at 8 seconds and S 2 ft at 15 seconds. Patchy fog in the morning.
THU NIGHT NW wind 20 to 25 kt. Seas 7 to 9 ft. Wave Detail: NW 8 ft at 8 seconds and S 2 ft at 14 seconds. Patchy fog.
FRI NW wind 20 to 25 kt. Seas 7 to 8 ft. Wave Detail: NW 8 ft at 7 seconds and S 2 ft at 14 seconds. Patchy fog in the morning.
FRI NIGHT NW wind 20 to 25 kt. Seas 8 to 9 ft. Wave Detail: NW 8 ft at 8 seconds and S 2 ft at 14 seconds.
SAT NW wind 20 to 25 kt. Seas 7 to 8 ft. Wave Detail: NW 7 ft at 7 seconds and S 2 ft at 14 seconds.
SAT NIGHT NW wind 20 to 25 kt. Seas 7 to 8 ft. Wave Detail: NW 7 ft at 8 seconds and S 2 ft at 15 seconds.
Waters from Pt. Sal to Santa Cruz Island CA and westward 60 nm including San Miguel and Santa Rosa Islands- 254 AM PDT Tue Aug 18 2026
...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT...
TODAY NW wind 20 to 25 kt. Seas 6 to 7 ft. Wave Detail: NW 7 ft at 7 seconds and S 2 ft at 14 seconds. Patchy fog this morning.
TONIGHT NW wind 20 to 25 kt. Seas 7 to 8 ft. Wave Detail: NW 8 ft at 8 seconds and S 2 ft at 15 seconds. Patchy fog.
WED NW wind 15 to 20 kt. Seas 6 to 8 ft. Wave Detail: NW 7 ft at 8 seconds and S 3 ft at 15 seconds. Patchy fog in the morning.
WED NIGHT NW wind 20 to 25 kt. Seas 6 to 8 ft. Wave Detail: NW 8 ft at 8 seconds and S 2 ft at 15 seconds. Patchy fog.
THU NW wind 15 to 20 kt. Seas 6 to 8 ft. Wave Detail: NW 7 ft at 8 seconds and S 2 ft at 15 seconds. Patchy fog in the morning.
THU NIGHT NW wind 20 to 25 kt. Seas 6 to 8 ft. Wave Detail: NW 7 ft at 8 seconds and S 2 ft at 14 seconds. Patchy fog.
FRI NW wind 15 to 25 kt, becoming 20 to 30 kt in the afternoon. Seas 6 to 8 ft. Wave Detail: NW 7 ft at 8 seconds and S 2 ft at 14 seconds. Patchy fog in the morning.
FRI NIGHT NW wind 25 to 30 kt. Seas 7 to 8 ft. Wave Detail: NW 8 ft at 8 seconds and S 2 ft at 14 seconds.
SAT NW wind 25 to 30 kt. Seas 6 to 8 ft. Wave Detail: NW 8 ft at 8 seconds and S 2 ft at 14 seconds.
SAT NIGHT NW wind 25 to 30 kt. Seas 7 to 8 ft. Wave Detail: NW 8 ft at 8 seconds and S 2 ft at 15 seconds.
Outer waters from Santa Cruz Island to San Clemente Island to 60 NM offshore including San Nicolas and Santa Barbara Islands- 254 AM PDT Tue Aug 18 2026
...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT...
TODAY NW wind 15 to 25 kt. Seas 5 to 7 ft. Wave Detail: NW 7 ft at 7 seconds and S 2 ft at 14 seconds. Patchy fog this morning.
TONIGHT NW wind 15 to 25 kt. Seas 6 to 8 ft. Wave Detail: NW 7 ft at 7 seconds and S 2 ft at 15 seconds. Patchy fog.
WED NW wind 10 to 20 kt. Seas 5 to 7 ft. Wave Detail: NW 6 ft at 8 seconds and S 2 ft at 15 seconds. Patchy fog in the morning.
WED NIGHT NW wind 15 to 25 kt. Seas 5 to 7 ft. Wave Detail: NW 7 ft at 7 seconds and S 2 ft at 15 seconds. Patchy fog.
THU NW wind 10 to 20 kt. Seas 5 to 7 ft. Wave Detail: NW 5 ft at 8 seconds and S 2 ft at 15 seconds. Patchy fog in the morning.
THU NIGHT NW wind 10 to 20 kt, becoming 15 to 25 kt after midnight. Seas 4 to 6 ft. Wave Detail: NW 6 ft at 7 seconds and S 2 ft at 14 seconds. Patchy fog.
FRI NW wind 15 to 25 kt. Seas 4 to 6 ft. Wave Detail: NW 5 ft at 9 seconds and S 2 ft at 14 seconds. Patchy fog in the morning.
FRI NIGHT NW wind 15 to 25 kt. Seas 5 to 7 ft. Wave Detail: NW 7 ft at 8 seconds and S 2 ft at 14 seconds.
SAT NW wind 15 to 25 kt. Seas 5 to 7 ft. Wave Detail: NW 6 ft at 9 seconds and S 2 ft at 13 seconds.
SAT NIGHT NW wind 20 to 30 kt. Seas 6 to 8 ft. Wave Detail: NW 7 ft at 8 seconds and S 2 ft at 15 seconds.
East Santa Barbara Channel from Pt. Conception to Pt. Mugu CA including Santa Cruz Island- 254 AM PDT Tue Aug 18 2026
TODAY Western Portion, NW wind 10 to 20 kt becoming W this afternoon. Eastern Portion, Light winds becoming W 5 to 10 kt this afternoon. Seas 2 to 4 ft. Wave Detail: W 3 ft at 8 seconds.
TONIGHT Western Portion, W wind 15 to 25 kt becoming NW 10 to 20 kt after midnight. Eastern Portion, W wind 5 to 10 kt. Seas 4 to 6 ft. Wave Detail: W 5 ft at 7 seconds.
WED W wind 5 to 10 kt, becoming 10 to 15 kt in the afternoon. Seas 2 to 4 ft. Wave Detail: W 3 ft at 8 seconds.
WED NIGHT Western Portion, W wind 15 to 20 kt becoming NW 10 to 15 kt after midnight. Eastern Portion, W wind 5 to 10 kt becoming light after midnight. Seas 3 to 5 ft. Wave Detail: NW 4 ft at 7 seconds and W 2 ft at 10 seconds.
THU Light winds, becoming W 10 to 15 kt in the afternoon. Seas 2 to 3 ft. Wave Detail: W 3 ft at 8 seconds. Patchy fog in the morning.
THU NIGHT W wind 10 to 20 kt, becoming N 10 to 15 kt after midnight. Seas 2 to 3 ft. Wave Detail: W 2 ft at 7 seconds.
FRI Light winds, becoming W 10 to 15 kt in the afternoon. Seas 2 to 3 ft. Wave Detail: W 2 ft at 9 seconds. Patchy fog in the morning.
FRI NIGHT Western Portion, NW wind 10 to 20 kt. Eastern Portion, SW wind 5 to 10 kt. Seas 2 to 4 ft. Wave Detail: W 4 ft at 8 seconds.
SAT Western Portion, NW wind 10 to 20 kt. Eastern Portion, W wind 5 to 10 kt. Seas 2 to 4 ft. Wave Detail: W 3 ft at 8 seconds.
SAT NIGHT Western Portion, NW wind 15 to 25 kt. Eastern Portion, W wind 10 to 15 kt. Seas 3 to 5 ft. Wave Detail: W 4 ft at 8 seconds.
Inner waters from Point Mugu to San Mateo Pt. CA including Santa Catalina and Anacapa Islands- 254 AM PDT Tue Aug 18 2026
TODAY NW wind 5 to 10 kt, becoming W 10 to 20 kt this afternoon. Seas 3 to 4 ft. Wave Detail: W 3 ft at 8 seconds and S 2 ft at 14 seconds.
TONIGHT NW wind 10 to 15 kt, becoming W 5 to 10 kt after midnight. Seas 3 to 5 ft. Wave Detail: W 4 ft at 8 seconds and S 2 ft at 15 seconds. Patchy fog after midnight.
WED Light winds, becoming W 10 to 15 kt in the afternoon. Seas 2 to 4 ft. Wave Detail: W 3 ft at 8 seconds and S 2 ft at 16 seconds.
WED NIGHT W wind 10 to 15 kt in the evening, becoming light. Seas 2 to 4 ft. Wave Detail: W 3 ft at 8 seconds and S 2 ft at 15 seconds. Patchy fog after midnight.
THU Light winds, becoming SW 5 to 10 kt in the afternoon. Seas 2 to 4 ft. Wave Detail: W 2 ft at 8 seconds and S 2 ft at 15 seconds. Patchy fog in the morning.
THU NIGHT SW wind 5 to 10 kt in the evening, becoming light. Seas 2 to 3 ft. Wave Detail: W 2 ft at 8 seconds and S 2 ft at 14 seconds. Patchy fog.
FRI Light winds, becoming SW 5 to 10 kt in the afternoon. Seas 2 to 3 ft. Wave Detail: W 2 ft at 8 seconds and S 2 ft at 14 seconds. Patchy fog in the morning.
FRI NIGHT W wind 5 to 10 kt in the evening, becoming light. Seas 2 to 3 ft. Wave Detail: W 2 ft at 8 seconds and S 2 ft at 14 seconds.
SAT Light winds, becoming W 5 to 10 kt in the afternoon. Seas 2 to 3 ft. Wave Detail: W 3 ft at 8 seconds and S 2 ft at 14 seconds.
SAT NIGHT W wind 10 to 15 kt, becoming 5 to 10 kt after midnight. Seas 2 to 4 ft. Wave Detail: W 3 ft at 8 seconds.
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