Critical Fire Weather Conditions in the Plains; Heavy Snow in the Sierra and Northern Rockies
Gusty winds and warm, very dry conditions will lead to a Critical Risk of fire weather across much of the High Plains through Thursday. A Pacific storm system will bring strong winds and precipitation from the Pacific Northwest to the Northern Rockies, with heavy mountain snow in the Sierra-Nevada and northern Rockies. Heavy snow will continue in the northern Rockies on Thursday. Read More >
Hazardous Weather Conditions
Last Update: 853 AM PDT Wed Apr 22 2026
For More Weather Information:
12NM SW San Francisco CA
Marine Zone Forecast
Today
S wind 5 to 10 kt, veering to W late. Seas 4 to 5 ft. Wave detail: W 4 ft at 10 seconds and SW 3 ft at 14 seconds. Showers likely with a slight chance of tstms early this morning, then a slight chance of rain late this morning and early afternoon.
Tonight
NW wind 5 to 10 kt, rising to 10 to 15 kt after midnight. Seas 4 to 5 ft. Wave detail: W 5 ft at 9 seconds.
Thu
NW wind 10 to 15 kt. Seas 4 to 5 ft. Wave detail: W 5 ft at 7 seconds and S 2 ft at 16 seconds.
Thu Night
NW wind 15 to 20 kt, easing to 10 to 15 kt after midnight. Seas 4 to 6 ft. Wave detail: NW 6 ft at 9 seconds and S 2 ft at 13 seconds.
Fri
NW wind 5 to 10 kt. Seas 4 to 6 ft. Wave detail: W 5 ft at 8 seconds and SW 2 ft at 15 seconds.
Fri Night
W wind 5 to 10 kt. Seas 3 to 4 ft. Wave detail: W 4 ft at 8 seconds.
Sat
W wind 5 to 10 kt, rising to 10 to 15 kt in the afternoon. Seas 3 to 4 ft. Wave detail: W 3 ft at 9 seconds and SW 2 ft at 14 seconds.
Sat Night
W wind 10 to 15 kt, easing to 5 to 10 kt after midnight. Seas around 3 ft. Wave detail: W 3 ft at 9 seconds and SW 2 ft at 14 seconds.
Sun
W wind 5 to 10 kt. Seas around 3 ft. Wave detail: W 3 ft at 7 seconds.
Sun Night
W wind 5 to 10 kt. Seas 3 to 4 ft. Wave detail: W 3 ft at 7 seconds.
winds and seas higher in and near tstms.
.....san francisco bar/fourfathom bank forecast.....
in the deep water channel...mixed seas of 5 to 7 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 1.0 kt at 10:05 pm wednesday and 2.9 kt at 08:53 am thursday.
winds and seas higher in and near tstms.
.....san francisco bar/fourfathom bank forecast.....
in the deep water channel...mixed seas of 5 to 7 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 1.0 kt at 10:05 pm wednesday and 2.9 kt at 08:53 am thursday.
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