20NM W Hyannis MA

E winds around 5 kt, becoming SE. Seas 1 foot or less. Wave detail: SE 1 foot at 2 seconds and SE 1 foot at 8 seconds.

S winds 5 to 10 kt, increasing to 10 to 15 kt with gusts up to 20 kt in the afternoon. Seas 1 foot or less, then around 2 ft in the afternoon. Wave detail: S 1 foot at 2 seconds and SE 1 foot at 8 seconds, becoming S 1 foot at 3 seconds and SE 1 foot at 8 seconds. Patchy fog in the morning with vsby 1 to 3 nm.

SW winds 15 to 20 kt with gusts up to 30 kt. Seas 2 to 4 ft. Wave detail: SW 3 ft at 4 seconds and SE 2 ft at 8 seconds.

SW winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 4 ft. Patchy fog. Showers likely. Vsby 1 to 3 nm.

NW winds around 10 kt. Seas around 2 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.