Remnants of Arthur and Heavy Rainfall Across the South; Severe Weather for the East

Potential life threatening flash flooding across the northern Gulf Coast states as the remnants of Arthur track across the area. Remember, turn around - don't drown. In addition, severe thunderstorms with tornadoes are possible with the circulation of this storm. The threat for more severe thunderstorms will occur across portions of the Northeast, mid-Atlantic and central Appalachian's. Read More >

Last Update: 912 AM PDT Thu Jun 18 2026

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San Francisco Bay Area/Monterey, CA Local Forecast Office

12NM SW San Francisco CA

Marine Zone Forecast

Today

S wind 5 to 10 kt, rising to 10 to 15 kt early this afternoon, easing to 5 to 10 kt late. Seas 3 to 4 ft. Wave detail: NW 3 ft at 10 seconds and SW 3 ft at 17 seconds. A slight chance of very light drizzle this morning.

Tonight

S wind 5 to 10 kt. Seas 3 to 4 ft. Wave detail: NW 3 ft at 10 seconds and S 3 ft at 16 seconds. A slight chance of very light drizzle.

Juneteenth

S wind 5 to 10 kt. Seas 3 to 4 ft. Wave detail: NW 3 ft at 10 seconds and S 3 ft at 14 seconds. A slight chance of very light drizzle in the morning.

Fri Night

S wind 5 to 10 kt, easing to around 5 kt after midnight. Seas 3 to 4 ft. Wave detail: NW 3 ft at 10 seconds and SW 3 ft at 14 seconds. A slight chance of very light drizzle.

Sat

S wind around 5 kt, veering to SW around 5 kt in the afternoon. Seas 3 to 4 ft. Wave detail: NW 2 ft at 10 seconds and SW 3 ft at 14 seconds. A slight chance of very light drizzle in the morning. Patchy fog in the morning.

Sat Night

NW wind 5 to 10 kt. Seas 3 to 4 ft. Wave detail: NW 3 ft at 8 seconds and SW 3 ft at 16 seconds.

Sun

W wind 5 to 10 kt. Seas 3 to 5 ft. Wave detail: NW 4 ft at 8 seconds and SW 2 ft at 15 seconds.

Sun Night

NW 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.

Mon

W wind 5 to 10 kt. Seas 3 to 5 ft. Wave detail: W 4 ft at 9 seconds and SW 2 ft at 14 seconds.

Mon Night

W 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.

.....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 1.6 kt at 08:27 pm thursday and 3.2 kt at 07:58 am friday.

.....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 1.6 kt at 08:27 PM Thursday and 3.2 kt at 07:58 AM Friday.