FZUS56 KLOX 041057 CWFLOX Coastal Waters Forecast for California National Weather Service Los Angeles/Oxnard CA 257 AM PST Thu Dec 4 2025 Point Piedras Blancas to San Mateo Point CA out 60 NM including the Channel Islands National Marine Sanctuary ...See weather.gov/marine/wavedetail for more info on the new Wave Detail format... 257 AM PST Thu Dec 4 2025 .Synopsis for the southern California coast and Santa Barbara Channel including the Channel Islands National Marine Sanctuary and National Park...at 10Z, or 2 AM PST, a 1030 mb surface high was centered abouyt 375 NM west of Eureka, CA and extending to a 1029 mb surface high in northern Nevada. A 1015 mb thermal low was over the Gulf of California and extending to a 1018 mb trough over the southern California bight. Gusty northeast winds will impact much of the waters Ventura Harbor southward this morning.
Point Piedras Blancas to Point Sal westward out to 10 NM- 257 AM PST Thu Dec 4 2025
TODAY NE wind 5 to 10 kt, becoming NW this afternoon. Seas 3 to 5 ft. Wave Detail: W 5 ft at 14 seconds.
TONIGHT NW wind 10 to 15 kt, becoming NE 5 to 10 kt after midnight. Seas 3 to 4 ft. Wave Detail: NW 4 ft at 12 seconds.
FRI NE wind 10 to 15 kt, becoming NW 10 to 20 kt in the afternoon. Seas 3 to 4 ft. Wave Detail: NW 2 ft at 6 seconds and NW 3 ft at 12 seconds.
FRI NIGHT NW wind 10 to 20 kt, becoming N 5 to 10 kt after midnight. Seas 3 to 5 ft. Wave Detail: NW 3 ft at 8 seconds and W 4 ft at 12 seconds.
SAT N wind 10 to 15 kt, becoming NW 10 to 20 kt in the afternoon. Seas 4 to 6 ft. Wave Detail: NW 4 ft at 9 seconds.
SAT NIGHT N wind 10 to 15 kt, becoming NE 5 to 10 kt after midnight. Seas 4 to 6 ft. Wave Detail: NW 4 ft at 8 seconds and W 5 ft at 11 seconds.
SUN N wind 10 to 15 kt, becoming 5 to 10 kt in the afternoon. Seas 4 to 5 ft. Wave Detail: NW 3 ft at 7 seconds and NW 5 ft at 10 seconds.
SUN NIGHT NW wind 10 to 15 kt, becoming N 5 to 10 kt after midnight. Seas 4 to 5 ft. Wave Detail: NW 5 ft at 11 seconds. Patchy fog after midnight.
MON N wind 5 to 10 kt, becoming 10 to 15 kt in the afternoon. Seas 3 to 5 ft. Wave Detail: NW 4 ft at 8 seconds. Patchy fog in the morning.
MON NIGHT N wind 10 to 20 kt. Seas 3 to 5 ft. Wave Detail: NW 3 ft at 8 seconds.
Point Piedras Blancas to Point Sal from 10 to 60 NM- 257 AM PST Thu Dec 4 2025
TODAY NE wind 5 to 10 kt, becoming NW this afternoon. Seas 5 to 6 ft. Wave Detail: NW 6 ft at 14 seconds.
TONIGHT NW wind 10 to 20 kt. Seas 4 to 5 ft. Wave Detail: NW 4 ft at 7 seconds and NW 5 ft at 12 seconds.
FRI N wind 10 to 20 kt, becoming NW 15 to 25 kt in the afternoon. Seas 4 to 6 ft. Wave Detail: NW 5 ft at 7 seconds and NW 4 ft at 12 seconds.
FRI NIGHT NW wind 15 to 25 kt. Seas 5 to 7 ft. Wave Detail: NW 6 ft at 8 seconds and W 3 ft at 11 seconds.
SAT 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 7 seconds and W 4 ft at 15 seconds.
SAT NIGHT N wind 20 to 30 kt, becoming 15 to 25 kt after midnight. Seas 6 to 8 ft. Wave Detail: N 7 ft at 7 seconds and W 4 ft at 14 seconds.
SUN N wind 15 to 25 kt, becoming 10 to 20 kt in the afternoon. Seas 6 to 7 ft. Wave Detail: N 6 ft at 7 seconds and NW 5 ft at 12 seconds.
SUN NIGHT N wind 10 to 20 kt. Seas 6 to 7 ft. Wave Detail: NW 5 ft at 7 seconds and NW 5 ft at 12 seconds. Patchy fog after midnight.
MON N wind 10 to 20 kt, becoming 15 to 25 kt in the afternoon. Seas 5 to 6 ft. Wave Detail: N 5 ft at 7 seconds and NW 4 ft at 11 seconds. Patchy fog in the morning.
MON NIGHT N wind 15 to 25 kt. Seas 5 to 7 ft. Wave Detail: NW 6 ft at 7 seconds and NW 3 ft at 11 seconds.
Waters from Pt. Sal to Santa Cruz Island CA and westward 60 nm including San Miguel and Santa Rosa Islands- 257 AM PST Thu Dec 4 2025
TODAY N wind 5 to 10 kt, becoming NW 10 to 15 kt this afternoon. Seas 5 to 6 ft. Wave Detail: NW 6 ft at 14 seconds.
TONIGHT NW wind 10 to 20 kt, becoming 15 to 20 kt after midnight. Seas 4 to 5 ft. Wave Detail: NW 3 ft at 7 seconds, E 2 ft at 9 seconds and NW 4 ft at 12 seconds.
FRI NW wind 15 to 25 kt. Seas 4 to 5 ft. Wave Detail: NW 4 ft at 6 seconds and NW 3 ft at 12 seconds.
FRI NIGHT NW wind 20 to 25 kt. Seas 5 to 6 ft. Wave Detail: NW 5 ft at 7 seconds and W 3 ft at 12 seconds.
SAT NW wind 15 to 25 kt. Seas 5 to 7 ft. Wave Detail: NW 6 ft at 8 seconds and W 3 ft at 11 seconds.
SAT NIGHT N wind 15 to 25 kt. Seas 5 to 7 ft. Wave Detail: NW 7 ft at 8 seconds and W 4 ft at 14 seconds.
SUN N wind 15 to 25 kt, becoming 10 to 20 kt in the afternoon. Seas 5 to 7 ft. Wave Detail: N 6 ft at 8 seconds and NW 5 ft at 11 seconds.
SUN NIGHT NW wind 10 to 20 kt. Seas 5 to 7 ft. Wave Detail: N 5 ft at 7 seconds and NW 4 ft at 12 seconds. Patchy fog after midnight.
MON N wind 10 to 20 kt, becoming NW 15 to 25 kt in the afternoon. Seas 5 to 6 ft. Wave Detail: N 5 ft at 7 seconds and NW 3 ft at 12 seconds. Patchy fog in the morning.
MON NIGHT N wind 15 to 25 kt. Seas 5 to 6 ft. Wave Detail: N 6 ft at 7 seconds and NW 3 ft at 11 seconds.
Outer waters from Santa Cruz Island to San Clemente Island to 60 NM offshore including San Nicolas and Santa Barbara Islands- 257 AM PST Thu Dec 4 2025
...SMALL CRAFT ADVISORY IN EFFECT UNTIL 2 PM PST THIS AFTERNOON...
TODAY NE wind 15 to 25 kt, becoming 10 to 20 kt this afternoon. Seas 4 to 6 ft. Wave Detail: NE 4 ft at 5 seconds and NW 4 ft at 14 seconds.
TONIGHT NW wind 10 to 20 kt. Seas 3 to 5 ft. Wave Detail: NW 3 ft at 5 seconds and NW 4 ft at 12 seconds.
FRI NW wind 10 to 20 kt. Seas 3 to 5 ft. Wave Detail: NW 3 ft at 5 seconds and NW 3 ft at 12 seconds.
FRI NIGHT NW wind 15 to 25 kt, becoming 10 to 20 kt after midnight. Seas 4 to 6 ft. Wave Detail: NW 4 ft at 7 seconds and W 3 ft at 11 seconds.
SAT NW wind 15 to 25 kt. Seas 4 to 6 ft. Wave Detail: NW 4 ft at 7 seconds and W 3 ft at 10 seconds.
SAT NIGHT N wind 15 to 25 kt, becoming NE 10 to 20 kt after midnight. Seas 4 to 6 ft. Wave Detail: NW 4 ft at 8 seconds and W 4 ft at 11 seconds.
SUN NE wind 10 to 15 kt, becoming N 5 to 10 kt in the afternoon. Seas 4 to 6 ft. Wave Detail: NW 4 ft at 13 seconds.
SUN NIGHT NW wind 10 to 15 kt. Seas 3 to 5 ft. Wave Detail: NW 4 ft at 12 seconds. Patchy fog after midnight.
MON NW wind 10 to 20 kt. Seas 4 to 6 ft. Wave Detail: NW 2 ft at 7 seconds and NW 3 ft at 12 seconds. Patchy fog in the morning.
MON NIGHT NW wind 10 to 20 kt. Seas 4 to 6 ft. Wave Detail: NW 4 ft at 6 seconds and NW 3 ft at 11 seconds.
East Santa Barbara Channel from Pt. Conception to Pt. Mugu CA including Santa Cruz Island- 257 AM PST Thu Dec 4 2025
...SMALL CRAFT ADVISORY IN EFFECT FROM 6 AM THIS MORNING TO 2 PM PST THIS AFTERNOON...
TODAY Eastern Portion, NE wind 15 to 25 kt becoming 10 to 15 kt this afternoon. Western Portion, NE wind 5 to 10 kt becoming SW this afternoon. Seas 2 to 4 ft. Wave Detail: E 2 ft at 5 seconds and W 3 ft at 14 seconds.
TONIGHT NW wind 10 to 20 kt. Seas 2 to 3 ft. Wave Detail: NW 2 ft at 5 seconds and W 2 ft at 12 seconds.
FRI N wind 5 to 10 kt, becoming SW in the afternoon. Seas 2 to 3 ft. Wave Detail: NW 2 ft at 5 seconds.
FRI NIGHT W wind 10 to 15 kt in the evening, becoming light. Seas 2 to 3 ft. Wave Detail: W 2 ft at 6 seconds and W 2 ft at 10 seconds.
SAT Light winds, becoming SW 5 to 10 kt in the afternoon. Seas 2 to 3 ft. Wave Detail: W 2 ft at 10 seconds.
SAT NIGHT NE wind 5 to 10 kt in the evening, becoming light. Seas 2 to 3 ft. Wave Detail: W 3 ft at 11 seconds.
SUN Light winds. Seas 2 to 3 ft. Wave Detail: W 3 ft at 12 seconds.
SUN NIGHT Light winds. Seas 2 to 3 ft. Wave Detail: W 2 ft at 12 seconds.
MON Light winds, becoming NW 5 to 10 kt in the afternoon. Seas 2 to 3 ft. Wave Detail: W 2 ft at 12 seconds.
MON NIGHT N wind 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: W 2 ft at 11 seconds.
Inner waters from Point Mugu to San Mateo Pt. CA including Santa Catalina and Anacapa Islands- 257 AM PST Thu Dec 4 2025
...SMALL CRAFT ADVISORY IN EFFECT UNTIL 2 PM PST THIS AFTERNOON...
TODAY Malibu to Santa Monica, N to NE wind 20 to 30 kt becoming E 10 to 20 kt this afternoon. Otherwise, NE wind 10 to 15 kt becoming SW 5 to 10 kt this afternoon. Seas 2 to 4 ft. Wave Detail: NE 2 ft at 5 seconds and W 2 ft at 14 seconds.
TONIGHT Malibu to Santa Monica, NW to N wind 15 to 25 kt becoming N to NE after midnight. Otherwise, NW wind 10 to 15 kt becoming NE 5 to 10 kt after midnight. Seas 2 to 3 ft. Wave Detail: NW 2 ft at 5 seconds and W 2 ft at 13 seconds.
FRI Malibu to Santa Monica, N to NE wind 15 to 25 kt becoming SE 5 to 10 kt in the afternoon. Otherwise, Light winds becoming S 5 to 10 kt in the afternoon. Seas 2 to 3 ft. Wave Detail: NW 2 ft at 5 seconds.
FRI NIGHT W wind 5 to 10 kt in the evening, becoming light. Seas 2 ft. Wave Detail: W 2 ft at 5 seconds and W 2 ft at 11 seconds.
SAT Light winds, becoming SW 5 to 10 kt in the afternoon. Seas 2 to 3 ft. Wave Detail: W 2 ft at 11 seconds.
SAT NIGHT E wind 5 to 10 kt in the evening, becoming light. Seas 2 to 3 ft. Wave Detail: W 2 ft at 11 seconds.
SUN Light winds. Seas 2 to 3 ft. Wave Detail: W 2 ft at 11 seconds.
SUN NIGHT NW wind 5 to 10 kt in the evening, becoming light. Seas 2 ft. Wave Detail: W 2 ft at 12 seconds.
MON Light winds, becoming NW 5 to 10 kt in the afternoon. Seas 2 ft. Wave Detail: W 2 ft at 12 seconds.
MON NIGHT NW wind 10 to 20 kt, becoming N 10 to 15 kt after midnight. Seas 2 ft. Wave Detail: N 2 ft at 5 seconds and W 2 ft at 12 seconds.
Hall www.weather.gov/losangeles
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