Risks of Severe Thunderstorms and Excessive Rainfall; Fire Weather Concerns and Record Warmth

Severe thunderstorms and flash flooding risks increase across the center of the nation today. Meanwhile, ongoing thunderstorms and flash flooding will linger along the Gulf Coast states through the evening. The Great Basin and Intermountain West, warm temperatures and dry fuels with dry lightning may enhance fire weather potential. In addition, across interior Alaska, Red Flag Warning are posted. Read More >

Last Update: 854 AM PDT Sat Jun 20 2026

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San Francisco Bay Area/Monterey, CA Local Forecast Office

12NM SW San Francisco CA

Marine Zone Forecast

Today

SW wind around 5 kt, veering to W late. Seas 3 to 4 ft. Wave detail: NW 2 ft at 9 seconds and SW 3 ft at 14 seconds. A slight chance of very light drizzle early this morning. Patchy fog early this morning.

Tonight

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

Sun

W wind 5 to 10 kt. Seas 3 to 5 ft. Wave detail: W 4 ft at 9 seconds and SW 2 ft at 15 seconds.

Sun Night

W wind 5 to 10 kt. Seas 4 to 5 ft. Wave detail: W 4 ft at 9 seconds and SW 2 ft at 15 seconds.

Mon

W wind around 5 kt. Seas 3 to 5 ft. Wave detail: NW 4 ft at 9 seconds and SW 2 ft at 14 seconds.

Mon Night

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

Tue

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

Tue Night

SW wind around 5 kt. Seas around 3 ft. Wave detail: NW 2 ft at 8 seconds and SW 2 ft at 15 seconds. Patchy fog after midnight.

Wed

SW wind around 5 kt. Seas around 3 ft. Wave detail: NW 2 ft at 9 seconds and SW 2 ft at 18 seconds. Patchy fog in the morning.

Wed Night

W wind around 5 kt. Seas 3 to 4 ft. Wave detail: NW 3 ft at 9 seconds and S 2 ft at 17 seconds.

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

in the deep water channel...mixed seas of 3 to 5 ft at 18 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 2.7 kt at 09:08 am saturday and 1.8 kt at 10:29 pm saturday.

.....SAN FRANCISCO BAR/FOURFATHOM BANK FORECAST..... IN THE DEEP WATER CHANNEL...Mixed seas of 3 to 5 ft at 18 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 2.7 kt at 09:08 AM Saturday and 1.8 kt at 10:29 PM Saturday.