Hawaii and Guam Concerns; Record Warmth Spreads Eastward; Heavy Snow for Sierra-Nevada; Severe Weather for the Plains
A very active spring pattern with tropical concerns across the Pacific. Heavy rainfall will continue to impact Hawaii this weekend. Meanwhile we continue to monitor a developing typhoon that may affect Guam into early next week. For the Lower 48, heavy snow for mountains of California this weekend, increase threat for severe thunderstorms next week for the Plains and record warmth spreads east. Read More >
Hazardous Weather Conditions
Last Update: 837 PM PDT Sat Apr 11 2026
For More Weather Information:
12NM SW San Francisco CA
Marine Zone Forecast
Tonight
SW wind 20 to 25 kt. Seas 5 to 6 ft, building to 7 to 9 ft after midnight. Wave detail: SW 8 ft at 7 seconds and NW 3 ft at 11 seconds. Showers with a chance of tstms early this evening, then showers likely with a slight chance of tstms late this evening and overnight.
Sun
W wind 15 to 20 kt. Seas 8 to 11 ft. Wave detail: SW 3 ft at 9 seconds and W 9 ft at 10 seconds. A slight chance of tstms. Showers likely, mainly in the morning.
Sun Night
W wind 10 to 15 kt, becoming NW 5 to 10 kt after midnight. Seas 5 to 8 ft. Wave detail: W 8 ft at 10 seconds and S 3 ft at 15 seconds. A slight chance of showers.
Mon
NW wind around 5 kt, rising to 5 to 10 kt in the afternoon. Seas 4 to 6 ft. Wave detail: W 5 ft at 10 seconds and SW 3 ft at 14 seconds.
Mon Night
NW wind 15 to 20 kt. Seas 5 to 7 ft. Wave detail: W 6 ft at 9 seconds and SW 3 ft at 10 seconds.
Tue
NW wind 10 to 15 kt. Seas 4 to 6 ft. Wave detail: W 5 ft at 8 seconds.
Tue Night
NW wind 15 to 20 kt. Seas 4 to 6 ft. Wave detail: NW 5 ft at 7 seconds.
Wed
NW wind 15 to 20 kt. Seas 4 to 5 ft. Wave detail: NW 5 ft at 7 seconds.
Wed Night
NW wind 20 to 25 kt. Seas 4 to 5 ft. Wave detail: NW 5 ft at 7 seconds.
Thu
NW wind 20 to 25 kt. Seas 4 to 6 ft. Wave detail: W 6 ft at 7 seconds.
Thu Night
NW wind 20 to 25 kt, easing to 15 to 20 kt after midnight. Seas 5 to 7 ft. Wave detail: NW 6 ft at 10 seconds.
winds and seas higher in and near tstms.
.....san francisco bar/fourfathom bank forecast.....
in the deep water channel...mixed seas of 6 to 8 feet at 6 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 1.4 kt at 01:39 am sunday and 1.7 kt at 01:34 pm sunday.
winds and seas higher in and near tstms.
.....san francisco bar/fourfathom bank forecast.....
in the deep water channel...mixed seas of 6 to 8 feet at 6 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 1.4 kt at 01:39 am sunday and 1.7 kt at 01:34 pm sunday.
Winds and seas higher in and near tstms. .....SAN FRANCISCO BAR/FOURFATHOM BANK FORECAST..... IN THE DEEP WATER CHANNEL...Mixed seas of 6 to 8 feet at 6 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 1.4 kt at 01:39 AM Sunday and 1.7 kt at 01:34 PM Sunday.
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