Sinlaku Continues to Impact the Marianas; Severe Weather for the Central Plains and Northeast; Record Warmth for mid-Atlantic to Southeast

Sinlaku continues to affect the Marianas as it moves north through Friday. Meanwhile, severe thunderstorms are expected from the Northeast to the Mid-Mississippi Valley today and for the Central/Southern Plains on Friday. Considerable flooding impacts are ongoing in the Upper Great Lakes, and expected to continue through the weekend. Fire weather concerns persist in the Plains. Read More >

Hazardous Weather Conditions

Small Craft Advisory until April 16, 09:00 PM PDT

Last Update: 242 AM PDT Thu Apr 16 2026

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San Francisco Bay Area/Monterey, CA Local Forecast Office

12NM SW San Francisco CA

Marine Zone Forecast

Today

N wind 15 to 20 kt, easing to 10 to 15 kt late this morning, then becoming NW 15 to 20 kt this afternoon. Seas 5 to 8 ft. Wave detail: NW 7 ft at 9 seconds and SW 2 ft at 14 seconds.

Tonight

NW wind 20 to 25 kt, becoming N 10 to 15 kt after midnight. Seas 5 to 8 ft. Wave detail: NW 7 ft at 10 seconds.

Fri

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

Fri Night

NW wind 10 to 15 kt. Seas 3 to 5 ft. Wave detail: NW 4 ft at 9 seconds.

Sat

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

Sat Night

NW wind 5 to 10 kt. Seas around 3 ft. Wave detail: NW 3 ft at 8 seconds.

Sun

W wind around 5 kt, backing to SW in the afternoon. Seas around 2 ft or less. Wave detail: W 2 ft at 6 seconds.

Sun Night

SW wind 10 to 15 kt. Seas around 2 ft or less, then 3 to 4 ft after midnight. Wave detail: W 3 ft at 8 seconds and S 2 ft at 14 seconds. A chance of rain.

Mon

S wind 10 to 15 kt. Seas 3 to 5 ft, building to 5 to 7 ft in the afternoon. Wave detail: SW 4 ft at 7 seconds and NW 5 ft at 14 seconds. A chance of rain.

Mon Night

SW wind 10 to 15 kt. Seas 5 to 8 ft. Wave detail: SW 4 ft at 7 seconds and W 6 ft at 12 seconds. A chance of rain.

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

in the deep water channel...mixed seas of 2 to 4 feet at 13 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 3.6 kt at 04:02 am thursday and 2.0 kt at 04:27 pm thursday.

.....SAN FRANCISCO BAR/FOURFATHOM BANK FORECAST..... IN THE DEEP WATER CHANNEL...Mixed seas of 2 to 4 feet at 13 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 3.6 kt at 04:02 AM Thursday and 2.0 kt at 04:27 PM Thursday.