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20NM W Hyannis MA

Marine Zone Forecast

Today

NW winds 5 to 10 kt, becoming SW 10 to 15 kt this afternoon. Seas around 2 ft. Wave detail: W 2 ft at 3 seconds and SW 2 ft at 6 seconds.

Tonight

W winds 10 to 15 kt, diminishing to 5 to 10 kt after midnight. Seas around 2 ft. Wave detail: SW 2 ft at 5 seconds and E 1 foot at 8 seconds.

Sun

SW 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 2 to 3 ft in the afternoon. Wave detail: SW 1 foot at 6 seconds and SE 1 foot at 8 seconds, becoming SW 2 ft at 3 seconds and SW 2 ft at 6 seconds.

Sun Night

S winds 15 to 20 kt. Seas 2 to 3 ft. Wave detail: SW 3 ft at 4 seconds and SE 1 foot at 9 seconds. A chance of showers in the evening, then showers likely with a chance of tstms after midnight.

Mon

W winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft. Wave detail: SW 2 ft at 5 seconds and SE 1 foot at 10 seconds. A chance of showers in the morning.

Mon Night

W winds 10 to 15 kt with gusts up to 20 kt, becoming NW 5 to 10 kt after midnight. Seas around 2 ft. Wave detail: SW 2 ft at 4 seconds and SW 2 ft at 7 seconds.

Tue Through Wed Night

S winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft.

winds and seas higher in and near tstms.

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.

Winds and seas higher in and near tstms. 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.