Severe Weather in the Central U.S.; Critical Fire Weather in the Southern Plains
Severe thunderstorms are expected to form today from northern Oklahoma into southern Minnesota. Very large hail and tornadoes will be the initial threats this afternoon, then transition into a wind threat tonight. Gusty winds, warm temperatures, and very dry conditions will create a Critical Risk of fire weather across portions of the southern Plains today. Read More >
Hazardous Weather Conditions
Last Update: 923 AM PDT Thu Apr 23 2026
For More Weather Information:
12NM SW San Francisco CA
Marine Zone Forecast
Rest Of Today
NW wind 5 to 10 kt, rising to 10 to 15 kt this afternoon. Seas 3 to 5 ft. Wave detail: W 5 ft at 8 seconds.
Tonight
NW wind 10 to 15 kt. Seas 4 to 6 ft. Wave detail: NW 5 ft at 8 seconds and S 2 ft at 16 seconds.
Fri
W wind 5 to 10 kt. Seas 3 to 5 ft. Wave detail: NW 5 ft at 8 seconds.
Fri Night
W wind 5 to 10 kt. Seas 3 to 4 ft. Wave detail: NW 4 ft at 8 seconds and S 2 ft at 15 seconds. A slight chance of rain after midnight.
Sat
W wind 5 to 10 kt. Seas 3 to 4 ft. Wave detail: NW 4 ft at 8 seconds. A slight chance of rain in the morning, then a chance of rain in the afternoon.
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 8 seconds and SW 3 ft at 9 seconds.
Sun
W wind 5 to 10 kt. Seas 3 to 4 ft. Wave detail: W 3 ft at 7 seconds.
Sun Night
W wind 10 to 15 kt, becoming NW 5 to 10 kt after midnight. Seas 3 to 4 ft. Wave detail: W 3 ft at 7 seconds.
Mon
NW wind around 5 kt, backing to W in the afternoon. Seas 3 to 4 ft. Wave detail: NW 3 ft at 9 seconds.
Mon Night
NW wind 5 to 10 kt. Seas 3 to 4 ft. Wave detail: W 3 ft at 13 seconds.
.....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 1.2 kt at 11:17 pm thursday and 2.2 kt at 10:23 am friday.
.....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 1.2 kt at 11:17 pm thursday and 2.2 kt at 10:23 am friday.
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