Martha's Vineyard and Nantucket Marine Forecast

TODAY NE winds 15 to 20 kt with gusts up to 30 kt. Seas 3 to 4 ft. Wave Detail: NE 4 ft at 4 seconds and SE 1 foot at 17 seconds.
TONIGHT NE winds 15 to 20 kt, increasing to 20 to 25 kt after midnight. Gusts up to 30 kt. Seas 3 to 5 ft. Wave Detail: NE 5 ft at 5 seconds.
WED NE winds 20 to 25 kt with gusts up to 35 kt. Seas 4 to 6 ft. Wave Detail: NE 6 ft at 5 seconds and SE 3 ft at 10 seconds.
WED NIGHT NE winds 25 to 30 kt with gusts up to 35 kt. Seas 5 to 7 ft. Wave Detail: E 7 ft at 10 seconds and NE 6 ft at 6 seconds.
THU NE winds 25 to 30 kt with gusts up to 40 kt. Seas 5 to 7 ft. Wave Detail: NE 6 ft at 5 seconds and E 6 ft at 10 seconds.
THU NIGHT NE winds 25 to 35 kt, becoming 30 to 35 kt after midnight. Seas 5 to 7 ft, building to 6 to 9 ft after midnight. Wave Detail: NE 7 ft at 6 seconds and E 6 ft at 11 seconds, becoming N 7 ft at 6 seconds and E 6 ft at 12 seconds. A chance of showers after midnight.
FRI NE winds 30 to 35 kt with gusts up to 45 kt. Seas 6 to 9 ft. Showers likely.
FRI NIGHT AND SAT N winds 30 to 40 kt with gusts up to 45 kt. Seas 6 to 9 ft. Showers.
SAT NIGHT N winds 25 to 30 kt with gusts up to 40 kt. Seas 5 to 7 ft. Showers likely. 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.