High pressure is centered offshore with a thermal trough over northern California. The thermal trough will strengthen and build north along the coast Friday...then shift inland Saturday. A weak cold front will move across the waters Sunday night.

W wind 5 to 10 kt...becoming variable 5 kt after midnight. Wind waves 1 ft. W swell 10 ft at 11 seconds... subsiding to 8 to 9 ft at 11 seconds. Slight chance of showers before dark. Patchy fog after midnight.

Variable wind 5 kt...becoming NW 10 to 15 kt in the afternoon. Wind waves 2 ft. W swell 7 ft at 10 seconds. Patchy fog in the morning.

NW wind 10 to 15 kt in the evening...veering to N 5 kt after midnight. Wind waves 2 ft. W swell 6 ft at 9 seconds. Patchy fog after midnight.

Variable wind 5 to 10 kt becoming W to SW wind 10 to 15 kt in the afternoon. Wind waves 2 ft. W swell 5 ft. Patchy fog in the morning.

SW wind 10 to 20 kt...becoming S 15 to 25 kt after midnight. Wind waves 5 ft. W swell 5 ft. Patchy fog. Slight chance of rain.

S wind 20 to 25 kt. Wind waves 6 ft. W swell 7 ft. Chance of rain.

NW wind 10 to 15 kt. Wind waves 2 ft. W swell 6 ft.

W wind 10 to 15 kt. Wind waves 2 ft. W swell 7 ft.