Significant Coastal Impacts to the Mid-Atlantic and Northeast; Tropical Storm Nolo to Impact Hawaii

A strong coastal storm will bring moderate to major coastal flooding, strong winds, heavy rainfall and high surf to the Mid-Atlantic and New England. Tropical Storm Nolo is expected to strengthen into a hurricane Thursday as it moves north toward the Big Island of Hawaii. Heavy rainfall will continue through Saturday, with locally catastrophic flooding possible. Hurricane Watch in effect. Read More >

Last Update: 246 PM PDT Wed Sep 23 2026

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San Francisco Bay Area/Monterey, CA Local Forecast Office

12NM SW San Francisco CA

Marine Zone Forecast

Tonight

NW wind 5 to 10 kt. Seas 4 to 6 ft. Wave detail: NW 5 ft at 10 seconds and SW 2 ft at 15 seconds.

Thu

NW wind 5 to 10 kt, rising to 10 to 15 kt in the afternoon. Seas 4 to 6 ft. Wave detail: NW 5 ft at 10 seconds and SW 2 ft at 15 seconds.

Thu Night

NW wind 10 to 15 kt. Seas 4 to 6 ft. Wave detail: NW 5 ft at 9 seconds and SW 2 ft at 14 seconds.

Fri

NW wind 10 to 15 kt, rising to 15 to 20 kt in the afternoon. Seas 3 to 5 ft, building to 5 to 7 ft in the afternoon. Wave detail: NW 6 ft at 10 seconds and S 2 ft at 13 seconds.

Fri Night

NW wind 15 to 20 kt, easing to 10 to 15 kt after midnight. Seas 6 to 9 ft. Wave detail: NW 7 ft at 10 seconds and S 2 ft at 13 seconds.

Sat

NW wind 10 to 15 kt, becoming W 5 to 10 kt in the afternoon. Seas 5 to 7 ft. Wave detail: NW 7 ft at 9 seconds and S 2 ft at 12 seconds.

Sat Night

NW wind 5 to 10 kt, rising to 10 to 15 kt after midnight. Seas 4 to 6 ft. Wave detail: NW 5 ft at 9 seconds and S 2 ft at 13 seconds.

Sun

NW wind 10 to 15 kt. Seas 4 to 6 ft. Wave detail: NW 6 ft at 9 seconds and S 2 ft at 14 seconds.

Sun Night

NW wind 10 to 15 kt. Seas 5 to 8 ft. Wave detail: NW 6 ft at 8 seconds and S 3 ft at 15 seconds.

Mon

NW wind 5 to 10 kt. Seas 5 to 7 ft. Wave detail: W 6 ft at 8 seconds.

Mon Night

NW wind 10 to 15 kt. Seas 5 to 7 ft.

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

in the deep water channel...mixed seas of 2 to 4 ft at 8 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 1.9 kt at 03:14 pm wednesday and 2.1 kt at 03:22 am thursday.

.....SAN FRANCISCO BAR/FOURFATHOM BANK FORECAST..... IN THE DEEP WATER CHANNEL...Mixed seas of 2 to 4 ft at 8 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 1.9 kt at 03:14 PM Wednesday and 2.1 kt at 03:22 AM Thursday.