
Sinlaku Continues to Impact the Marianas; Severe Weather from the Central US to the Northeast; Late-Season Snow in the Northwest
Sinlaku continues to bring destructive winds, widespread heavy rain/flooding, and storm surge to the Marianas. Showers and severe thunderstorms are expected from the Northeast to the Mid-Mississippi Valley and to the Central/Southern Plains through Thursday. A front will produce late-season snowfall over the Cascades and Northern Rockies and coastal rain over the Northwest Coast through Thursday. Read More >
Hazardous Weather Conditions
Last Update: 258 PM PDT Tue Apr 14 2026
For More Weather Information:
12NM SW San Francisco CA
Marine Zone Forecast
This Afternoon
NW wind 10 to 15 kt, rising to 15 to 20 kt late. Seas 4 to 6 ft. Wave detail: NW 5 ft at 8 seconds and SW 2 ft at 14 seconds.
Tonight
NW wind 15 to 20 kt. Seas 4 to 6 ft. Wave detail: NW 6 ft at 8 seconds and S 2 ft at 14 seconds.
Wed
NW wind 15 to 20 kt, easing to 10 to 15 kt in the afternoon. Seas 4 to 5 ft. Wave detail: NW 5 ft at 7 seconds.
Wed Night
NW wind 15 to 20 kt. Seas 3 to 4 ft, building to 5 to 7 ft after midnight. Wave detail: NW 6 ft at 6 seconds and S 2 ft at 14 seconds.
Thu
NW wind 20 to 25 kt, easing to 15 to 20 kt in the afternoon. Seas 6 to 9 ft, subsiding to 5 to 7 ft in the afternoon. Wave detail: NW 8 ft at 9 seconds.
Thu Night
NW wind 20 to 25 kt, easing to 15 to 20 kt after midnight. Seas 5 to 8 ft. Wave detail: NW 8 ft at 10 seconds and SW 2 ft at 13 seconds.
Fri
NW wind 5 to 10 kt. Seas 5 to 7 ft, subsiding to 3 to 5 ft in the afternoon. Wave detail: W 6 ft at 10 seconds and SW 2 ft at 15 seconds.
Fri Night
NW wind 10 to 15 kt. Seas 4 to 6 ft. Wave detail: NW 5 ft at 8 seconds and SW 2 ft at 14 seconds.
Sat
NW wind 5 to 10 kt. Seas 3 to 5 ft. Wave detail: NW 4 ft at 8 seconds and SW 2 ft at 13 seconds.
Sat Night
NW wind 5 to 10 kt. Seas around 3 ft. Wave detail: NW 3 ft at 7 seconds and SW 2 ft at 15 seconds. A chance of rain after midnight.
.....san francisco bar/fourfathom bank forecast.....
in the deep water channel...mixed seas of 3 to 5 feet at 14 seconds.
across the bar...swell can be more than twice as high across the bar than surrounding waters. Waves are also more prone to break, particularly during strong ebb currents. Maximum ebb current of 2.1 kt at 03:02 pm tuesday and 3.0 kt at 03:31 am wednesday.
.....san francisco bar/fourfathom bank forecast.....
in the deep water channel...mixed seas of 3 to 5 feet at 14 seconds.
across the bar...swell can be more than twice as high across the bar than surrounding waters. Waves are also more prone to break, particularly during strong ebb currents. Maximum ebb current of 2.1 kt at 03:02 pm tuesday and 3.0 kt at 03:31 am wednesday.
Additional Forecasts and Information
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