Critical Fire Weather in the Southern High Plains; Heavy Snow in the Great Lakes and Northeast U.S.

Gusty winds and low relative humidity will bring elevated to critical fire weather conditions to the southern High Plains through the weekend. A winter storm will track across the Great Lakes and Northeast U.S. into Saturday with areas of wintry mix and heavy snow from northern New York through southern Maine. Read More >

Hazardous Weather Conditions

Small Craft Advisory in effect from February 21, 03:00 AM PST until February 21, 03:00 PM PST
Gale Warning in effect from February 21, 03:00 PM PST until February 22, 03:00 AM PST

Last Update: 853 PM PST Fri Feb 20 2026

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For More Weather Information:

San Francisco Bay Area/Monterey, CA Local Forecast Office

12NM SW San Francisco CA

Marine Zone Forecast

Tonight

S wind around 5 kt, backing to SE 15 to 20 kt. Seas 3 to 5 ft. Wave detail: NW 5 ft at 10 seconds.

Sat

SE wind 20 to 25 kt, becoming S 25 to 30 kt with gusts up to 40 kt in the afternoon. Seas 4 to 6 ft. Wave detail: S 6 ft at 7 seconds and W 3 ft at 9 seconds.

Sat Night

S wind 25 to 30 kt with gusts up to 40 kt. Seas 5 to 8 ft. Wave detail: S 7 ft at 8 seconds. A slight chance of rain in the evening, then a chance of rain after midnight.

Sun

SE wind 25 to 30 kt with gusts up to 40 kt, veering to S 20 to 25 kt in the afternoon. Seas 5 to 8 ft. Wave detail: S 7 ft at 8 seconds and W 2 ft at 11 seconds. A chance of rain, mainly in the morning.

Sun Night

S wind 10 to 15 kt, becoming SE 5 to 10 kt after midnight. Seas 5 to 7 ft. Wave detail: S 6 ft at 9 seconds and NW 3 ft at 14 seconds. A slight chance of rain.

Mon

E wind 5 to 10 kt, veering to S in the afternoon. Seas 5 to 7 ft. Wave detail: SW 6 ft at 10 seconds and W 4 ft at 13 seconds. A chance of rain in the afternoon.

Mon Night

S wind 10 to 15 kt, rising to 15 to 20 kt after midnight. Seas 4 to 6 ft. Wave detail: SW 4 ft at 10 seconds and W 4 ft at 13 seconds. A chance of rain in the evening, then rain after midnight.

Tue

S wind 15 to 20 kt, easing to 10 to 15 kt in the afternoon. Seas 5 to 7 ft. Wave detail: SW 6 ft at 10 seconds and NW 3 ft at 11 seconds. Rain.

Tue Night

SW wind 5 to 10 kt, veering to NW after midnight. Seas 5 to 7 ft. Wave detail: SW 6 ft at 10 seconds and NW 3 ft at 11 seconds. Rain likely, mainly in the evening.

Wed

NW wind 5 to 10 kt. Seas 3 to 5 ft. Wave detail: SW 4 ft at 9 seconds and NW 3 ft at 10 seconds. A chance of rain.

Wed Night

N wind 5 to 10 kt. Seas 3 to 4 ft. Wave detail: NW 3 ft at 9 seconds and SW 3 ft at 10 seconds. A chance of rain.

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

in the deep water channel...mixed seas of 5 to 7 feet with two wave systems at 7 and 14 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 3.4 kt at 06:31 am saturday and 2.1 kt at 07:03 pm saturday.