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46NM ENE Nantucket MA

Marine Zone Forecast

Today

SW winds 20 to 25 kt, becoming W 15 to 20 kt this afternoon. Gusts up to 30 kt. Seas 5 to 7 ft. Wave detail: S 6 ft at 7 seconds and E 3 ft at 8 seconds.

Tonight

NW winds 10 to 15 kt with gusts up to 20 kt, increasing to 20 to 25 kt with gusts up to 30 kt after midnight. Seas 4 to 6 ft. Wave detail: NW 5 ft at 6 seconds and S 4 ft at 7 seconds.

Thu

N winds 20 to 25 kt, diminishing to 15 to 20 kt in the afternoon. Gusts up to 30 kt. Seas 5 to 7 ft. Wave detail: N 6 ft at 7 seconds and SE 2 ft at 10 seconds.

Thu Night

NE winds 5 to 10 kt, becoming E after midnight. Seas 4 to 6 ft, subsiding to 3 to 4 ft after midnight. Wave detail: N 5 ft at 7 seconds and SW 2 ft at 6 seconds, becoming N 4 ft at 7 seconds and SW 1 foot at 6 seconds.

Fri

SE winds 15 to 20 kt, becoming S 20 to 25 kt in the afternoon. Gusts up to 30 kt. Seas 3 to 4 ft, building to 5 to 7 ft in the afternoon. Wave detail: NE 3 ft at 6 seconds and SW 1 foot at 5 seconds, becoming S 6 ft at 6 seconds and NE 4 ft at 6 seconds. Showers.

Fri Night

SW winds 20 to 25 kt, becoming W 25 to 30 kt after midnight. Seas 7 to 10 ft, building to 9 to 12 ft after midnight. Wave detail: S 8 ft at 8 seconds and NE 1 foot at 6 seconds, becoming W 9 ft at 7 seconds and SW 9 ft at 8 seconds. Showers.

Sat

NW winds 25 to 30 kt with gusts up to 35 kt. Seas 10 to 13 ft. Showers likely.

Sat Night

NW winds 25 to 30 kt with gusts up to 35 kt. Seas 8 to 11 ft.

Sun

NW winds 20 to 25 kt. Seas 5 to 7 ft.

Sun Night

W winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 5 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.