Strong Storms and Heavy Rainfall Threats; Dangerous Heat for Southern Plains into the Southwest

Thunderstorms, some severe, will impact areas of the Plains into the Midwest today. Rainfall can be locally heavy as well from these storms with isolated instances of flash flooding. Monsoonal flow will enhance rainfall across the Four Corners into the central Rockies today. Meanwhile, summer heat continues for the southern Plains, Southwest into southern California. Read More >

Last Update: 847 AM PDT Tue Aug 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. Seas around 3 ft. Wave detail: NW 3 ft at 6 seconds and S 2 ft at 14 seconds.

Tonight

NW wind 10 to 15 kt, rising to 15 to 20 kt after midnight. Seas 3 to 4 ft. Wave detail: NW 3 ft at 5 seconds.

Wed

NW wind 10 to 15 kt, rising to 15 to 20 kt in the afternoon. Seas 3 to 4 ft. Wave detail: NW 3 ft at 7 seconds and S 2 ft at 13 seconds.

Wed Night

NW wind 15 to 20 kt. Seas 4 to 6 ft. Wave detail: NW 5 ft at 7 seconds and S 2 ft at 14 seconds.

Thu

NW wind 10 to 15 kt, rising to 15 to 20 kt in the afternoon. Seas 4 to 5 ft. Wave detail: NW 4 ft at 7 seconds and S 2 ft at 12 seconds.

Thu Night

NW wind 15 to 20 kt. Seas 5 to 7 ft. Wave detail: NW 6 ft at 8 seconds and S 2 ft at 12 seconds.

Fri

NW wind 10 to 15 kt. Seas 4 to 6 ft. Wave detail: NW 5 ft at 8 seconds and S 2 ft at 11 seconds.

Fri Night

NW wind 10 to 15 kt. Seas 4 to 6 ft. Wave detail: NW 5 ft at 8 seconds and S 2 ft at 14 seconds.

Sat

NW wind 10 to 15 kt, rising to 15 to 20 kt in the afternoon. Seas 4 to 6 ft. Wave detail: NW 5 ft at 8 seconds and S 2 ft at 16 seconds.

Sat Night

NW wind 15 to 20 kt. Seas 5 to 7 ft. Wave detail: NW 6 ft at 8 seconds and S 2 ft at 17 seconds.

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

in the deep water channel...mixed seas of 2 to 4 ft at 12 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 1.5 kt at 03:43 pm tuesday and 2.2 kt at 03:51 am wednesday.

.....SAN FRANCISCO BAR/FOURFATHOM BANK FORECAST..... IN THE DEEP WATER CHANNEL...Mixed seas of 2 to 4 ft at 12 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 1.5 kt at 03:43 PM Tuesday and 2.2 kt at 03:51 AM Wednesday.