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Hazardous Weather Conditions
Last Update: 406 PM EDT Thu Mar 12 2026
For More Weather Information:
11NM SW Nantucket MA
Marine Zone Forecast
Tonight
NW winds 20 to 25 kt with gusts up to 30 kt. Seas 5 to 7 ft. Wave detail: W 7 ft at 7 seconds and SE 4 ft at 9 seconds. Snow. Rain and sleet this evening. Patchy fog this evening with vsby 1 nm or less.
Fri
W winds 15 to 20 kt, becoming SW 10 to 15 kt in the afternoon. Gusts up to 25 kt. Seas 4 to 6 ft. Wave detail: W 5 ft at 6 seconds and S 4 ft at 9 seconds.
Fri Night
S winds 20 to 25 kt, becoming SW 25 to 30 kt after midnight. Seas 4 to 6 ft, building to 6 to 9 ft after midnight. Wave detail: S 6 ft at 9 seconds and SW 4 ft at 5 seconds, becoming SW 9 ft at 9 seconds and SW 2 ft at 4 seconds.
Sat
W winds 25 to 30 kt with gusts up to 40 kt. Seas 8 to 11 ft. Wave detail: SW 11 ft at 10 seconds and S 3 ft at 10 seconds.
Sat Night
W winds 20 to 25 kt with gusts up to 35 kt, becoming NW 15 to 20 kt with gusts up to 25 kt after midnight. Seas 6 to 9 ft, subsiding to 4 to 6 ft after midnight. Wave detail: SW 9 ft at 10 seconds and W 2 ft at 5 seconds, becoming SW 6 ft at 9 seconds and NW 2 ft at 4 seconds.
Sun
N winds 5 to 10 kt, becoming E 10 to 15 kt with gusts up to 20 kt in the afternoon. Seas 3 to 5 ft, subsiding to 2 to 3 ft in the afternoon. Wave detail: SW 4 ft at 8 seconds and N 1 foot at 4 seconds, becoming SW 3 ft at 7 seconds and N 2 ft at 4 seconds.
Sun Night
SE winds 20 to 25 kt, increasing to 25 to 30 kt with gusts up to 35 kt after midnight. Seas 2 to 4 ft, building to 4 to 6 ft after midnight. A chance of rain after midnight.
Mon
SE winds 25 to 35 kt with gusts up to 45 kt. Seas 7 to 10 ft. Rain.
Mon Night
S winds 30 to 40 kt with gusts up to 45 kt. Seas 10 to 14 ft. Rain.
Tue
SW winds 25 to 30 kt. Seas 9 to 13 ft. Rain likely.
Tue Night
W winds 25 to 30 kt. Seas 7 to 10 ft.
seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height.
seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height.
Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height.
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