Critical Fire Weather in the High Plains and Midwest; Heavy Snow in the Western Mountains and Northern Plains

Gusty winds and low relative humidity will bring critical fire weather to the central/southern High Plains and portions of the Midwest. Two Pacific storms will continue to bring heavy mountain snow and gusty winds to the western U.S. through Thursday. A swath of wintry weather, including heavy snow and a wintry mix, is expected from the Northern Plains to New England. Read More >

Hazardous Weather Conditions

Small Craft Advisory until February 19, 03:00 AM PST

Last Update: 903 AM PST Wed Feb 18 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 10 to 15 kt, backing to NW late this morning, rising to 15 to 20 kt this afternoon. Seas 9 to 13 ft, subsiding to 8 to 11 ft this afternoon. Wave detail: W 11 ft at 13 seconds and SW 4 ft at 14 seconds. Rain likely early this morning, then a chance of rain late this morning. A slight chance of rain this afternoon.

Tonight

SW wind 15 to 20 kt, veering to NW after midnight. Seas 8 to 11 ft. Wave detail: W 10 ft at 13 seconds and SW 2 ft at 13 seconds. Rain.

Thu

NW wind 25 to 30 kt. Seas 9 to 12 ft, building to 10 to 14 ft in the afternoon. Wave detail: NW 13 ft at 10 seconds. Rain, mainly in the morning.

Thu Night

NW wind 20 to 25 kt, easing to 10 to 15 kt after midnight. Seas 9 to 13 ft, subsiding to 8 to 11 ft after midnight. Wave detail: NW 13 ft at 11 seconds. A slight chance of rain.

Fri

N wind 5 to 10 kt. Seas 5 to 8 ft, subsiding to 4 to 6 ft in the afternoon. Wave detail: NW 8 ft at 11 seconds and SW 2 ft at 15 seconds. A slight chance of rain in the morning.

Fri Night

S wind 5 to 10 kt, becoming SE 10 to 15 kt after midnight. Seas 3 to 5 ft. Wave detail: NW 5 ft at 10 seconds and SW 2 ft at 15 seconds. A chance of rain after midnight.

Sat

SE wind 20 to 25 kt, becoming S 25 to 30 kt in the afternoon. Seas 3 to 4 ft, building to 4 to 6 ft in the afternoon. Wave detail: W 4 ft at 11 seconds and S 6 ft at 13 seconds. A chance of rain in the morning, then rain likely in the afternoon.

Sat Night

S wind 35 to 40 kt. Seas 6 to 9 ft, building to 8 to 11 ft after midnight. Wave detail: S 11 ft at 8 seconds. Rain.

Sun

S wind 30 to 40 kt. Seas 9 to 13 ft. Wave detail: S 12 ft at 9 seconds and W 2 ft at 12 seconds. Rain.

Sun Night

S wind 30 to 35 kt, becoming 25 to 35 kt after midnight. Seas 9 to 12 ft. Wave detail: S 11 ft at 9 seconds and W 5 ft at 12 seconds. 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 3.0 kt at 05:03 pm wednesday and 2.7 kt at 05:26 am thursday.

.....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 3.0 kt at 05:03 PM Wednesday and 2.7 kt at 05:26 AM Thursday.