Lake Effect Snow in the Lower Great Lakes; Unsettled Pattern in the Pacific Northwest

Lake-effect snow will continue downwind of Lakes Erie and Ontario through Friday. Lake Effect Snow Warnings have been issued. In the Western U.S., rain and higher elevation snow will continue over the Great Basin through Friday. A front will move over the Pacific Northwest this afternoon and produce light rain and higher elevation snow over the Cascades through Saturday. Read More >

Last Update: 801 AM PST Thu Feb 12 2026

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San Francisco Bay Area/Monterey, CA Local Forecast Office

12NM SW San Francisco CA

Marine Zone Forecast

Today

E wind 5 to 10 kt, backing to N this afternoon. Seas 4 to 6 ft. Wave detail: S 3 ft at 6 seconds and W 5 ft at 10 seconds.

Tonight

NW wind 10 to 15 kt. Seas 5 to 7 ft. Wave detail: W 6 ft at 11 seconds and SW 3 ft at 15 seconds.

Fri

NW wind 10 to 15 kt. Seas 6 to 9 ft. Wave detail: SW 3 ft at 14 seconds and W 8 ft at 17 seconds.

Fri Night

NW wind 10 to 15 kt, easing to 5 to 10 kt after midnight. Seas 6 to 9 ft. Wave detail: SW 2 ft at 9 seconds and W 8 ft at 16 seconds.

Sat

SW wind 5 to 10 kt, becoming S 10 to 15 kt in the afternoon. Seas 5 to 8 ft. Wave detail: SW 3 ft at 7 seconds and W 7 ft at 15 seconds. A slight chance of rain in the morning, then a chance of rain in the afternoon.

Sat Night

S wind around 15 kt, rising to 20 to 25 kt after midnight. Seas 5 to 8 ft. Wave detail: S 5 ft at 5 seconds and W 6 ft at 14 seconds. Rain.

Sun

SE wind 20 to 25 kt, becoming S 15 to 20 kt in the afternoon. Seas 6 to 8 ft. Wave detail: S 6 ft at 7 seconds and W 6 ft at 15 seconds. Rain.

Sun Night

SE wind 10 to 15 kt. Seas 7 to 10 ft. Wave detail: S 6 ft at 7 seconds and W 7 ft at 15 seconds. Rain.

Washingtons Birthday

SE wind 10 to 15 kt, becoming S 15 to 20 kt in the afternoon. Seas 5 to 8 ft. Wave detail: S 5 ft at 8 seconds and W 6 ft at 14 seconds. Rain.

Mon Night

SW wind 20 to 25 kt. Seas 5 to 8 ft. Wave detail: SW 6 ft at 10 seconds and NW 4 ft at 13 seconds. Rain.

.....san francisco bar/fourfathom bank forecast.....

in the deep water channel...mixed seas of 3 to 5 feet at 10 to 11 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 1.8 kt at 12:33 pm thursday and 1.1 kt at 01:30 am friday.

.....SAN FRANCISCO BAR/FOURFATHOM BANK FORECAST..... IN THE DEEP WATER CHANNEL...Mixed seas of 3 to 5 feet at 10 to 11 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 1.8 kt at 12:33 PM Thursday and 1.1 kt at 01:30 AM Friday.