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11NM SW Nantucket MA

Marine Zone Forecast

Today

NW winds 5 to 10 kt, becoming NE 15 to 20 kt with gusts up to 25 kt this afternoon. Seas 5 to 7 ft. Wave detail: S 7 ft at 15 seconds and NE 1 foot at 3 seconds.

Tonight

NE winds 15 to 20 kt, increasing to 25 to 30 kt after midnight. Seas 6 to 9 ft, building to 8 to 11 ft after midnight. Wave detail: S 7 ft at 15 seconds and NE 4 ft at 4 seconds, becoming NE 7 ft at 6 seconds and S 7 ft at 15 seconds.

Wed

NE winds 25 to 30 kt with gusts up to 35 kt. Seas 9 to 12 ft. Wave detail: NE 9 ft at 7 seconds and S 8 ft at 15 seconds.

Wed Night

N winds 25 to 30 kt, becoming NE 20 to 25 kt after midnight. Seas 9 to 12 ft. Wave detail: NE 9 ft at 8 seconds and S 7 ft at 14 seconds.

Thu

NE winds 15 to 20 kt with gusts up to 30 kt, diminishing to 10 to 15 kt with gusts up to 20 kt in the afternoon. Seas 7 to 10 ft. Wave detail: NE 6 ft at 8 seconds and S 3 ft at 12 seconds.

Thu Night

NE winds 5 to 10 kt. Seas 5 to 7 ft. Wave detail: NE 5 ft at 9 seconds and S 2 ft at 11 seconds.

Fri Through Sat Night

SW winds 10 to 15 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.