Major Winter Storm in the North-Central U.S.; Severe Weather from the Mid-South to Ohio Valley

A major winter storm will bring a swath of heavy snowfall, strong winds, blizzard conditions and freezing rain to the Northern Plains into the Great Lakes region. A line of storms will be capable of producing widespread damaging winds, tornadoes, and some large hail from the Mid-south to the Ohio Valley and the Southeast. Critical fire weather concerns shift to the southern Rockies and Plains. Read More >

Last Update: 848 AM PDT Sun Mar 15 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 5 to 10 kt. Seas 4 to 6 ft. Wave detail: NW 5 ft at 8 seconds and SW 2 ft at 14 seconds.

Tonight

NW wind 5 to 10 kt. Seas 3 to 5 ft. Wave detail: NW 4 ft at 8 seconds and SW 2 ft at 14 seconds.

Mon

N wind around 5 kt, backing to NW in the afternoon. Seas 3 to 5 ft. Wave detail: NW 4 ft at 8 seconds and SW 2 ft at 19 seconds.

Mon Night

NW wind 5 to 10 kt. Seas 3 to 4 ft. Wave detail: W 4 ft at 7 seconds and S 2 ft at 18 seconds.

Tue

N wind around 5 kt, backing to NW in the afternoon. Seas 3 to 4 ft. Wave detail: W 4 ft at 7 seconds and S 2 ft at 17 seconds.

Tue Night

NW wind 5 to 10 kt. Seas 3 to 4 ft. Wave detail: W 4 ft at 7 seconds and S 2 ft at 16 seconds.

Wed

N wind 5 to 10 kt. Seas 3 to 4 ft. Wave detail: W 4 ft at 7 seconds and S 2 ft at 15 seconds.

Wed Night

NW wind 10 to 15 kt, easing to 5 to 10 kt after midnight. Seas 3 to 4 ft. Wave detail: W 4 ft at 7 seconds.

Thu

NW wind 5 to 10 kt. Seas 3 to 4 ft. Wave detail: W 3 ft at 7 seconds.

Thu Night

NW wind 10 to 15 kt. Seas 3 to 5 ft. Wave detail: W 4 ft at 6 seconds and S 2 ft at 14 seconds.

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

in the deep water channel...mixed seas of 3 to 4 feet at 17 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 02:51 pm sunday and 1.9 kt at 03:27 am monday.

.....SAN FRANCISCO BAR/FOURFATHOM BANK FORECAST..... IN THE DEEP WATER CHANNEL...Mixed seas of 3 to 4 feet at 17 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 02:51 PM Sunday and 1.9 kt at 03:27 AM Monday.