Coastal Waters Forecast for Coastal Waters extending out to 25 nm South of Marthas Vineyard and Nantucket (ANZ255) (Text-Only)
NWS Forecast for: Coastal Waters extending out to 25 nm South of Marthas Vineyard and Nantucket (ANZ255)
Issued by: National Weather Service Norton, MA
Last Update: 706 AM EDT Wed Mar 11 2026




Today: S winds 5 to 10 kt, increasing to 10 to 15 kt with gusts up to 20 kt this afternoon. Seas 2 to 3 ft. Wave detail: S 3 ft at 7 seconds and E 2 ft at 8 seconds. Patchy fog. Vsby 1 nm or less.

Tonight: S winds 20 to 25 kt, increasing to 25 to 30 kt after midnight. Seas 4 to 6 ft, building to 6 to 9 ft after midnight. Wave detail: S 6 ft at 6 seconds and E 1 foot at 9 seconds, becoming S 9 ft at 7 seconds and W 1 foot at 4 seconds. Areas of fog. A chance of rain. Vsby 1 nm or less.

Thu: SW winds 25 to 30 kt, becoming W 20 to 25 kt in the afternoon. Seas 7 to 10 ft. Wave detail: SW 10 ft at 8 seconds and W 1 foot at 4 seconds. Patchy fog. A chance of rain in the morning, then rain in the afternoon. Vsby 1 nm or less, increasing to 1 to 3 nm in the afternoon.

Thu Night: NW winds 20 to 25 kt. Seas 5 to 7 ft. Wave detail: W 7 ft at 7 seconds and SE 4 ft at 9 seconds. Rain likely with a chance of snow in the evening.

Fri: W winds 10 to 15 kt, becoming SW 15 to 20 kt in the afternoon. Seas 4 to 6 ft, subsiding to 3 to 4 ft in the afternoon. Wave detail: SW 6 ft at 9 seconds and W 3 ft at 5 seconds, becoming SW 4 ft at 8 seconds and SE 3 ft at 10 seconds.

Fri Night: S winds 20 to 25 kt, becoming SW 25 to 30 kt after midnight. Seas 5 to 7 ft, building to 7 to 10 ft after midnight. Wave detail: SW 7 ft at 7 seconds and SE 2 ft at 10 seconds, becoming SW 10 ft at 9 seconds and W 1 foot at 5 seconds. A chance of rain after midnight.

Sat: W winds 25 to 30 kt with gusts up to 35 kt. Seas 8 to 11 ft.

Sat Night: NW winds 20 to 25 kt. Seas 5 to 7 ft.

Sun: E winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft.

Sun Night: SE winds 30 to 35 kt with gusts up to 40 kt. Seas 5 to 7 ft. A chance of rain.

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.







Zone Forecast: Coastal Waters extending out to 25 nm South of Marthas Vineyard and Nantucket (ANZ255)

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