For More Weather Information:

20NM W Hyannis MA

Marine Zone Forecast

Today

NW winds around 5 kt, becoming SW 10 to 15 kt this afternoon. Seas 1 foot or less, then around 2 ft this afternoon. Wave detail: N 1 foot at 4 seconds and SW 1 foot at 5 seconds, becoming N 1 foot at 4 seconds and W 1 foot at 4 seconds.

Tonight

SW winds 10 to 15 kt, diminishing to around 5 kt after midnight. Seas around 2 ft in the evening, then 1 foot or less. Wave detail: SW 1 foot at 4 seconds and N 1 foot at 5 seconds, becoming NE 1 foot at 3 seconds and W 1 foot at 4 seconds. Areas of smoke.

Sat

SW winds 10 to 15 kt with gusts up to 20 kt, becoming S 15 to 20 kt with gusts up to 30 kt in the afternoon. Seas 2 to 4 ft. Wave detail: SW 3 ft at 5 seconds and NE 1 foot at 7 seconds. Areas of smoke. A chance of showers in the afternoon.

Sat Night

SW winds 20 to 25 kt with gusts up to 30 kt. Seas 3 to 5 ft. Wave detail: SW 5 ft at 6 seconds and SE 2 ft at 11 seconds. Showers with a chance of tstms.

Sun

W winds 10 to 15 kt. Gusts up to 20 kt in the morning. Seas 2 to 4 ft. Wave detail: SW 4 ft at 7 seconds and SW 3 ft at 4 seconds. A chance of showers in the morning.

Sun Night

NW winds 5 to 10 kt. Seas 2 to 3 ft. Wave detail: SW 2 ft at 8 seconds and S 2 ft at 9 seconds.

Mon Through Tue

S winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 3 ft.

Tue Night

S winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to 4 ft. Showers.

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.