Significant Coastal Impacts to the Eastern Seaboard; Tropical Storm Nolo to Impact Hawaii

A Nor'easter will bring significant coastal impacts to the Mid-Atlantic and New England through the weekend. Moderate to major coastal flooding, heavy rain, strong winds and high surf expected. Tropical Storm Nolo will continue to strengthen as it moves north toward the Big Island of Hawaii. Heavy rainfall may bring life-threatening, catastrophic flooding and mudslides through the weekend. Read More >

Hazardous Weather Conditions

Small Craft Advisory in effect from September 25, 09:00 AM PDT until September 26, 03:00 AM PDT

Last Update: 831 AM PDT Fri Sep 25 2026

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San Francisco Bay Area/Monterey, CA Local Forecast Office

12NM SW San Francisco CA

Marine Zone Forecast

Today

NW wind 10 to 15 kt, rising to 15 to 20 kt this afternoon. Gusts up to 30 kt. Seas 3 to 4 ft, building to 4 to 6 ft this afternoon. Wave detail: NW 5 ft at 8 seconds and S 2 ft at 13 seconds.

Tonight

NW wind 15 to 20 kt with gusts up to 30 kt, easing to 10 to 15 kt after midnight. Seas 5 to 8 ft. Wave detail: NW 7 ft at 9 seconds and S 2 ft at 12 seconds.

Sat

NW wind 5 to 10 kt. Seas 5 to 7 ft. Wave detail: NW 7 ft at 9 seconds and S 2 ft at 12 seconds.

Sat Night

NW wind 10 to 15 kt. Seas 4 to 6 ft, building to 6 to 8 ft after midnight. Wave detail: NW 7 ft at 9 seconds and S 3 ft at 14 seconds.

Sun

NW wind 10 to 15 kt, rising to 15 to 20 kt in the afternoon. Seas 5 to 8 ft. Wave detail: NW 7 ft at 8 seconds and S 3 ft at 13 seconds.

Sun Night

NW wind 15 to 20 kt, easing to 10 to 15 kt after midnight. Seas 5 to 8 ft. Wave detail: NW 6 ft at 8 seconds and S 2 ft at 13 seconds.

Mon

NW wind 5 to 10 kt. Seas 5 to 7 ft. Wave detail: NW 6 ft at 9 seconds and S 2 ft at 14 seconds.

Mon Night

NW wind 10 to 15 kt. Seas 5 to 8 ft. Wave detail: NW 7 ft at 9 seconds.

Tue

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

Tue Night

NW wind 10 to 15 kt. Seas 6 to 9 ft. Wave detail: NW 8 ft at 10 seconds and SW 2 ft at 14 seconds.

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

in the deep water channel...mixed seas of 2 to 4 ft at 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 2.8 kt at 04:25 pm friday and 2.3 kt at 04:41 am saturday.

.....SAN FRANCISCO BAR/FOURFATHOM BANK FORECAST..... IN THE DEEP WATER CHANNEL...Mixed seas of 2 to 4 ft at 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 2.8 kt at 04:25 PM Friday and 2.3 kt at 04:41 AM Saturday.