Hazardous Weather Conditions
Last Update: 704 AM EDT Tue Jul 14 2026
For More Weather Information:
11NM SW Nantucket MA
Marine Zone Forecast
Today
SW winds 15 to 20 kt, increasing to 20 to 25 kt this afternoon. Gusts up to 30 kt. Seas 3 to 4 ft, building to 4 to 6 ft this afternoon. Wave detail: W 4 ft at 5 seconds and SE 1 foot at 9 seconds, becoming W 6 ft at 6 seconds and SE 1 foot at 9 seconds.
Tonight
SW winds 20 to 25 kt with gusts up to 30 kt. Seas 5 to 8 ft. Wave detail: W 8 ft at 6 seconds and SE 1 foot at 9 seconds.
Wed
W winds 20 to 25 kt, diminishing to 15 to 20 kt in the afternoon. Gusts up to 30 kt. Seas 5 to 8 ft, subsiding to 4 to 6 ft in the afternoon. Wave detail: W 8 ft at 6 seconds and SE 1 foot at 9 seconds, becoming SW 6 ft at 7 seconds and N 2 ft at 4 seconds.
Wed Night
W winds 10 to 15 kt with gusts up to 20 kt, becoming NW 5 to 10 kt after midnight. Seas 3 to 5 ft. Wave detail: SW 4 ft at 7 seconds and N 1 foot at 4 seconds.
Thu
W winds 5 to 10 kt, becoming SW 15 to 20 kt with gusts up to 25 kt in the afternoon. Seas 2 to 4 ft. Wave detail: SW 4 ft at 6 seconds and NW 2 ft at 4 seconds.
Thu Night
W winds 15 to 20 kt, diminishing to 10 to 15 kt after midnight. Gusts up to 25 kt. Seas 2 to 4 ft. Wave detail: W 4 ft at 3 seconds and SW 4 ft at 6 seconds.
Fri And Fri Night
W winds 5 to 10 kt. Seas 2 to 3 ft.
Sat
SW winds 5 to 10 kt. Seas 2 to 3 ft. A chance of showers.
Sat Night
S winds 10 to 15 kt. Seas 2 to 4 ft. A chance of showers.
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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