Dangerous Heat in the Central and Eastern U.S.; Critical Fire Weather in the Great Basin and Southwest
Dangerous, record-breaking heat will intensify across most of the central and eastern U.S this week. Heat indices will likely exceed 100 degrees. Heat is likely to continue across the eastern U.S. through the Independence Day holiday weekend. Critical fire weather conditions will continue Tuesday across portions of the Four Corners and Great Basin, as dry conditions and gusty winds persist. Read More >
Hazardous Weather Conditions
Last Update: 816 PM PDT Mon Jun 29 2026
For More Weather Information:
12NM SW San Francisco CA
Marine Zone Forecast
Today
NW wind 10 to 15 kt, easing to 5 to 10 kt late this morning, rising to 10 to 15 kt this afternoon. Seas 7 to 10 ft, subsiding to 5 to 8 ft this afternoon. Wave detail: NW 9 ft at 10 seconds and SW 2 ft at 15 seconds.
Tonight
NW wind 15 to 20 kt, easing to 10 to 15 kt after midnight. Seas 6 to 9 ft. Wave detail: NW 8 ft at 10 seconds. Patchy fog after midnight.
Tue
W wind 5 to 10 kt. Seas 5 to 8 ft. Wave detail: NW 7 ft at 11 seconds.
Tue Night
W wind 10 to 15 kt. Seas 7 to 10 ft. Wave detail: NW 9 ft at 11 seconds.
Wed
W wind 10 to 15 kt. Seas 6 to 9 ft, subsiding to 5 to 7 ft in the afternoon. Wave detail: NW 8 ft at 11 seconds and SW 2 ft at 17 seconds.
Wed Night
W wind 10 to 15 kt. Seas 5 to 8 ft. Wave detail: NW 7 ft at 11 seconds.
Thu
W wind 5 to 10 kt. Seas 5 to 7 ft. Wave detail: NW 7 ft at 10 seconds and SW 2 ft at 16 seconds.
Thu Night
W wind 10 to 15 kt, easing to 5 to 10 kt after midnight. Seas 4 to 6 ft. Wave detail: NW 5 ft at 9 seconds.
Fri
W wind 5 to 10 kt. Seas 4 to 6 ft. Wave detail: NW 5 ft at 9 seconds and SW 2 ft at 16 seconds.
Fri Night
W wind 5 to 10 kt. Seas 3 to 5 ft. Wave detail: NW 4 ft at 8 seconds and SW 2 ft at 15 seconds.
.....san francisco bar/fourfathom bank forecast.....
in the deep water channel...mixed seas of 3 to 5 ft 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 2.9 kt at 04:50 am tuesday and 1.1 kt at 06:13 pm tuesday.
.....san francisco bar/fourfathom bank forecast.....
in the deep water channel...mixed seas of 3 to 5 ft 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 2.9 kt at 04:50 am tuesday and 1.1 kt at 06:13 pm tuesday.
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