
Significant Winter Storm to Bring Heavy Snow and Ice Impacts; Dangerously Cold Temperatures Expands Across the East
A significant, long-duration winter storm will bring widespread heavy snow, sleet, and freezing rain from the Southern Rockies to New England through Monday. Widespread travel disruptions, prolonged power outages, and vast tree damage is likely. Frigid temperatures, gusty winds, and dangerous wind chills will expand from the north-central US to the Southern Plains, MS Valley, and Midwest. Read More >
Last Update: 209 AM PST Fri Jan 23 2026
For More Weather Information:
12NM SW San Francisco CA
Marine Zone Forecast
Today
N wind around 5 kt, backing to NW late. Seas 4 to 6 ft. Wave detail: W 5 ft at 9 seconds and SW 2 ft at 12 seconds. Patchy dense fog this morning.
Tonight
NW wind 5 to 10 kt, veering to N after midnight. Seas 4 to 6 ft. Wave detail: SW 2 ft at 7 seconds and W 5 ft at 10 seconds.
Sat
NE wind 10 to 15 kt, becoming N 5 to 10 kt in the afternoon. Seas 3 to 5 ft. Wave detail: W 5 ft at 11 seconds.
Sat Night
N wind 5 to 10 kt, becoming E 10 to 15 kt after midnight. Seas 3 to 5 ft. Wave detail: W 4 ft at 14 seconds.
Sun
E wind 5 to 10 kt. Seas 3 to 4 ft. Wave detail: W 4 ft at 13 seconds.
Sun Night
E wind around 5 kt, rising to 5 to 10 kt after midnight. Seas around 3 ft. Wave detail: W 3 ft at 12 seconds.
Mon
E wind 5 to 10 kt, easing to around 5 kt in the afternoon. Seas around 3 ft. Wave detail: W 3 ft at 13 seconds.
Mon Night
E wind around 5 kt. Seas around 3 ft. Wave detail: S 2 ft at 13 seconds and W 2 ft at 14 seconds.
Tue
E wind 5 to 10 kt. Seas around 3 ft. Wave detail: SW 2 ft at 7 seconds and W 2 ft at 14 seconds.
Tue Night
SE wind around 5 kt. Seas around 2 ft or less, then around 3 ft after midnight. Wave detail: SW 2 ft at 5 seconds and W 2 ft at 14 seconds.
.....san francisco bar/fourfathom bank forecast.....
in the deep water channel...mixed seas of 4 to 6 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 2.2 kt at 07:19 am friday and 2.5 kt at 07:18 pm friday.
.....san francisco bar/fourfathom bank forecast.....
in the deep water channel...mixed seas of 4 to 6 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 2.2 kt at 07:19 am friday and 2.5 kt at 07:18 pm friday.
.....SAN FRANCISCO BAR/FOURFATHOM BANK FORECAST..... IN THE DEEP WATER CHANNEL...Mixed seas of 4 to 6 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 2.2 kt at 07:19 AM Friday and 2.5 kt at 07:18 PM Friday.
Additional Forecasts and Information
Basemap Options
Click map to change the forecast location
Loading map...

