
Winter Returns Across the Northern Tier; Record Warmth for the Southwest
A large high pressure system will usher in cold air for this first day of March across the northern Plains, Great Lakes, Northeast and mid-Atlantic. Some wintry precipitation may evolve across the mid-Mississippi Valley, Ohio Valley and mid-Atlantic through Monday. Meanwhile, record warmth will spread across the Southwest, southern Plains through early this week. Read More >
Last Update: 818 AM PST Sun Mar 1 2026
For More Weather Information:
12NM SW San Francisco CA
Marine Zone Forecast
Today
W wind around 5 kt, backing to SW this afternoon. Seas 3 to 4 ft. Wave detail: SW 2 ft at 8 seconds and NW 3 ft at 11 seconds. Patchy fog until late afternoon.
Tonight
SW wind 5 to 10 kt. Seas 3 to 4 ft. Wave detail: W 4 ft at 10 seconds and SW 2 ft at 12 seconds. A slight chance of rain in the evening, then a chance of rain after midnight. Patchy fog.
Mon
W wind 5 to 10 kt. Seas 3 to 4 ft. Wave detail: W 4 ft at 10 seconds and SW 2 ft at 14 seconds. A slight chance of rain in the morning.
Mon Night
NW wind 5 to 10 kt. Seas 3 to 4 ft. Wave detail: W 4 ft at 9 seconds and SW 2 ft at 14 seconds.
Tue
NW wind 5 to 10 kt, rising to 10 to 15 kt in the afternoon. Seas 3 to 4 ft. Wave detail: W 4 ft at 8 seconds.
Tue Night
NW wind around 15 kt. Seas 3 to 5 ft. Wave detail: NW 4 ft at 6 seconds.
Wed
NW wind 15 to 20 kt, rising to 25 to 30 kt in the afternoon. Seas 3 to 4 ft, building to 4 to 6 ft in the afternoon. Wave detail: NW 6 ft at 7 seconds.
Wed Night
NW wind 25 to 30 kt. Seas 5 to 8 ft. Wave detail: NW 8 ft at 10 seconds.
Thu
NW wind 25 to 35 kt. Seas 6 to 9 ft. Wave detail: NW 9 ft at 11 seconds.
Thu Night
NW wind 25 to 35 kt. Seas 7 to 10 ft. Wave detail: NW 10 ft at 12 seconds.
.....san francisco bar/fourfathom bank forecast.....
in the deep water channel...mixed seas of 2 to 4 feet at 13 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 2.9 kt at 02:57 pm sunday and 2.5 kt at 03:31 am monday.
.....san francisco bar/fourfathom bank forecast.....
in the deep water channel...mixed seas of 2 to 4 feet at 13 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 2.9 kt at 02:57 pm sunday and 2.5 kt at 03:31 am monday.
.....SAN FRANCISCO BAR/FOURFATHOM BANK FORECAST..... IN THE DEEP WATER CHANNEL...Mixed seas of 2 to 4 feet at 13 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 2.9 kt at 02:57 PM Sunday and 2.5 kt at 03:31 AM Monday.
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