Isolated Severe Storms in the Midwest; Fire Weather Concerns in the Northern Plains; Record Heat in the West
Isolated severe storms are possible across parts of the Florida Peninsula and the Great Lakes to Lower Missouri Valley and south-central Plains late this afternoon and early evening. Elevated to critical fire weather concerns continue over much of the northern Great Plains. Above average temperatures persist across portions of the West today. Read More >
Hazardous Weather Conditions
Last Update: 851 AM PDT Tue May 12 2026
For More Weather Information:
12NM SW San Francisco CA
Marine Zone Forecast
Today
W wind around 5 kt, veering to NW 15 to 20 kt. Seas 3 to 5 ft. Wave detail: W 4 ft at 11 seconds and SW 2 ft at 15 seconds. Patchy dense fog early this morning.
Tonight
NW wind 20 to 25 kt, easing to 15 to 20 kt after midnight. Seas 6 to 8 ft. Wave detail: NW 7 ft at 8 seconds and SW 2 ft at 15 seconds.
Wed
NW wind 15 to 20 kt, rising to 20 to 25 kt with gusts up to 35 kt in the afternoon. Seas 4 to 6 ft, building to 5 to 8 ft in the afternoon. Wave detail: NW 6 ft at 8 seconds.
Wed Night
NW wind 20 to 25 kt with gusts up to 35 kt, easing to 15 to 20 kt after midnight. Seas 7 to 10 ft. Wave detail: NW 9 ft at 9 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 6 to 9 ft. Wave detail: NW 8 ft at 9 seconds and S 2 ft at 15 seconds.
Thu Night
NW wind 20 to 25 kt with gusts up to 35 kt. Seas 6 to 9 ft, building to 8 to 11 ft after midnight. Wave detail: NW 10 ft at 10 seconds and S 2 ft at 15 seconds.
Fri
NW wind 20 to 25 kt, rising to 25 to 30 kt in the afternoon. Seas 7 to 10 ft. Wave detail: NW 9 ft at 10 seconds.
Fri Night
NW wind 25 to 30 kt. Seas 9 to 12 ft. Wave detail: NW 11 ft at 10 seconds.
Sat
NW wind 25 to 35 kt. Seas 9 to 12 ft. Wave detail: NW 12 ft at 11 seconds.
Sat Night
NW wind 30 to 35 kt, becoming 25 to 35 kt after midnight. Seas 10 to 14 ft. Wave detail: NW 13 ft at 11 seconds and SW 2 ft at 15 seconds.
.....san francisco bar/fourfathom bank forecast.....
in the deep water channel...mixed seas of 5 to 7 feet at 15 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 1.8 kt at 01:45 pm tuesday and 3.0 kt at 02:23 am wednesday.
.....san francisco bar/fourfathom bank forecast.....
in the deep water channel...mixed seas of 5 to 7 feet at 15 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 1.8 kt at 01:45 pm tuesday and 3.0 kt at 02:23 am wednesday.
Additional Forecasts and Information
Basemap Options
Click map to change the forecast location
Loading map...
Forecast AreaRADAR & SATELLITE IMAGES
