Martha's Vineyard and Nantucket Marine Forecast

TONIGHT NW winds 20 to 25 kt, diminishing to 15 to 20 kt after midnight. Seas 2 to 4 ft. Wave Detail: W 3 ft at 4 seconds and SE 1 foot at 7 seconds.
TUE NW winds 15 to 20 kt with gusts up to 25 kt, becoming W 10 to 15 kt in the afternoon. Seas 2 to 3 ft. Wave Detail: NW 3 ft at 4 seconds and SE 1 foot at 5 seconds.
TUE NIGHT NW winds 10 to 15 kt, diminishing to 5 to 10 kt after midnight. Seas around 2 ft. Wave Detail: W 2 ft at 3 seconds and E 1 foot at 5 seconds.
WED W winds 5 to 10 kt, becoming SW 10 to 15 kt with gusts up to 20 kt in the afternoon. Seas 1 foot or less, then 2 to 3 ft in the afternoon. Wave Detail: W 1 foot at 3 seconds and NE 1 foot at 5 seconds, becoming SW 2 ft at 3 seconds and NE 1 foot at 5 seconds.
WED NIGHT AND THU SW winds 15 to 20 kt. Seas 2 to 3 ft. Wave Detail: S 2 ft at 4 seconds and E 1 foot at 8 seconds.
THU NIGHT W winds 10 to 15 kt. Gusts up to 20 kt in the evening. Seas around 2 ft. Wave Detail: W 2 ft at 3 seconds and SE 1 foot at 7 seconds.
FRI THROUGH SAT NIGHT NW winds 10 to 15 kt. Seas around 2 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.