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Gray/Portland, ME Local Forecast Office

25NM ENE Portsmouth NH

Marine Zone Forecast

Tonight

NW winds 15 to 20 kt, diminishing to 5 to 10 kt. Seas 3 to 5 ft, subsiding to 2 to 3 ft after midnight. Wave detail: N 4 ft at 4 seconds and SE 2 ft at 8 seconds, becoming NE 2 ft at 4 seconds.

Sun

NW winds around 5 kt, becoming SW in the afternoon. Seas around 2 ft in the morning, then 1 foot or less.

Sun Night

S winds 5 to 10 kt. Seas 1 foot or less.

Mon

S winds around 5 kt, becoming E in the afternoon. Seas 2 to 3 ft. Wave detail: SE 2 ft at 8 seconds.

Mon Night

NE winds around 5 kt, increasing to 10 to 15 kt with gusts up to 20 kt after midnight. Seas 2 to 4 ft, building to 4 to 6 ft after midnight. Wave detail: SE 4 ft at 10 seconds, becoming SE 6 ft at 12 seconds.

Tue

N winds 15 to 20 kt, becoming NE 10 to 15 kt in the afternoon. Seas 5 to 8 ft. Wave detail: SE 8 ft at 12 seconds.

Tue Night

NE winds 15 to 20 kt with gusts up to 30 kt. Seas 6 to 7 ft.

Wed

NE winds 15 to 20 kt with gusts up to 30 kt. Seas 6 to 8 ft.

Wed Night

NE winds 10 to 15 kt with gusts up to 25 kt. Seas 6 to 7 ft.

Thu

N winds 10 to 15 kt with gusts up to 25 kt. Seas 6 to 7 ft.

Thu Night

N winds 10 to 15 kt with gusts up to 20 kt, increasing to 15 to 20 kt with gusts up to 30 kt after midnight. Seas 5 to 7 ft.