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18NM S Portland ME

Marine Zone Forecast

Tonight

NW winds 25 to 30 kt with gusts up to 40 kt, becoming W 10 to 15 kt with gusts up to 25 kt. Seas 4 to 6 ft, subsiding to 2 to 4 ft after midnight. Wave detail: NW 6 ft at 5 seconds and SE 2 ft at 11 seconds, becoming W 3 ft at 4 seconds.

Fri

W 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 4 ft at 4 seconds.

Fri Night

S winds 20 to 25 kt, becoming SW 15 to 20 kt after midnight. Gusts up to 35 kt. Seas 4 to 6 ft. Wave detail: S 6 ft at 7 seconds. Showers.

Sat

W winds 10 to 15 kt with gusts up to 25 kt. Seas 3 to 5 ft. Wave detail: S 5 ft at 8 seconds. Scattered showers in the morning.

Sat Night

NW winds 5 to 10 kt with gusts up to 20 kt, becoming NE after midnight. Seas 2 to 3 ft. Wave detail: S 3 ft at 8 seconds and NW 2 ft at 3 seconds.

Sun

E winds 5 to 10 kt, increasing to 10 to 15 kt with gusts up to 25 kt in the afternoon. Seas 2 to 3 ft. Wave detail: SE 3 ft at 6 seconds. A chance of rain in the morning, then rain likely in the afternoon.

Sun Night

E winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to 5 ft. Rain likely.

Mon

E winds 10 to 15 kt, becoming W in the afternoon. Seas 3 to 5 ft. Rain likely in the morning, then scattered showers in the afternoon.

Mon Night

W winds 15 to 20 kt with gusts up to 30 kt. Seas 3 to 5 ft. Scattered showers.

Tue

W winds 25 to 30 kt with gusts up to 45 kt. Seas 3 to 5 ft.

Tue Night

W winds 25 to 30 kt with gusts up to 40 kt. Seas 3 to 5 ft.