Areas of Extreme Heat and Excessive Rainfall Potential

Dangerous and extreme heat will remain across portions of the central U.S. this week, persisting across the mid to lower Mississippi Valley, Gulf Coast, southern Plains and portions of Texas. A heat wave over the Southwest U.S. will peak this weekend. Heavy to excessive rainfall may produce flash flooding from the Delmarva Peninsula north into the Hudson Valley today and tonight. Read More >

Last Update: 222 PM PDT Tue Jul 28 2026

View Nearby Observations

12NM SW San Francisco CA

Marine Zone Forecast


Tonight
NW wind 15 to 20 kt. Seas 6 to 9 ft. Wave detail: NW 7 ft at 8 seconds and SW 2 ft at 17 seconds.
Wed
NW wind 15 to 20 kt. Seas 5 to 7 ft. Wave detail: NW 7 ft at 9 seconds and SW 2 ft at 17 seconds.
Wed Night
NW wind 15 to 20 kt. Seas 7 to 10 ft. Wave detail: NW 7 ft at 9 seconds and SW 2 ft at 16 seconds.
Thu
NW wind 10 to 15 kt, rising to 15 to 20 kt in the afternoon. Seas 5 to 7 ft. Wave detail: NW 6 ft at 9 seconds and S 2 ft at 15 seconds.
Thu Night
NW wind 15 to 20 kt. Seas 6 to 9 ft. Wave detail: NW 7 ft at 9 seconds and S 2 ft at 15 seconds.
Fri
NW wind 10 to 15 kt, rising to 15 to 20 kt in the afternoon. Seas 5 to 7 ft. Wave detail: NW 6 ft at 8 seconds and S 3 ft at 14 seconds.
Fri Night
NW wind 15 to 20 kt. Seas 5 to 8 ft. Wave detail: NW 6 ft at 9 seconds and S 3 ft at 14 seconds.
Sat
NW wind 15 to 20 kt. Seas 5 to 8 ft. Wave detail: NW 7 ft at 9 seconds and S 3 ft at 13 seconds.
Sat Night
NW wind 20 to 25 kt. Seas 8 to 11 ft. Wave detail: NW 9 ft at 10 seconds and S 2 ft at 13 seconds.
Sun
NW wind 15 to 20 kt. Seas 7 to 10 ft. Wave detail: NW 9 ft at 10 seconds and S 2 ft at 12 seconds.
Sun Night
NW wind 15 to 20 kt. Seas 6 to 9 ft.

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

in the deep water channel...mixed seas of 4 to 6 ft at 22 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 1.3 kt at 04:56 pm tuesday and 2.6 kt at 04:50 am wednesday.




.....SAN FRANCISCO BAR/FOURFATHOM BANK FORECAST..... IN THE DEEP WATER CHANNEL...Mixed seas of 4 to 6 ft at 22 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 1.3 kt at 04:56 PM Tuesday and 2.6 kt at 04:50 AM Wednesday.
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222 PM PDT Tue Jul 28 2026
 
 

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