Coastal Waters Forecast for Coastal Waters from Montauk NY to Marthas Vineyard extending out to 20 nm South of Block Island (ANZ256) (Text-Only)
NWS Forecast for: Coastal Waters from Montauk NY to Marthas Vineyard extending out to 20 nm South of Block Island (ANZ256)
Issued by: National Weather Service Norton, MA
Last Update: 404 AM EST Mon Feb 16 2026




Today: NE winds 15 to 20 kt. Seas 3 to 4 ft. Wave detail: E 4 ft at 5 seconds and S 1 foot at 6 seconds. A chance of snow this morning.

Tonight: NE winds 10 to 15 kt with gusts up to 20 kt, becoming N 5 to 10 kt after midnight. Seas 4 to 6 ft. Wave detail: S 5 ft at 10 seconds and E 4 ft at 7 seconds.

Tue: SW winds 5 to 10 kt. Seas 5 to 6 ft. Wave detail: SE 5 ft at 9 seconds and SW 1 foot at 5 seconds.

Tue Night: W winds 5 to 10 kt. Seas 4 to 6 ft. Wave detail: E 5 ft at 10 seconds and SW 2 ft at 5 seconds.

Wed: SW winds 5 to 10 kt, becoming SE 10 to 15 kt in the afternoon. Seas 3 to 5 ft. Wave detail: E 5 ft at 10 seconds and S 2 ft at 4 seconds. A chance of rain in the morning, then rain likely in the afternoon.

Wed Night: SW winds 10 to 15 kt, becoming N 15 to 20 kt after midnight. Seas 3 to 5 ft. Wave detail: NW 5 ft at 6 seconds and E 3 ft at 12 seconds. Rain likely in the evening, then a chance of rain and snow after midnight.

Thu: NE winds 15 to 20 kt. Seas 3 to 5 ft.

Thu Night: NE winds around 10 kt. Seas 3 to 4 ft.

Fri: E winds 15 to 20 kt. Seas around 3 ft. Rain likely.

Fri Night: E winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to 4 ft. Rain likely with a chance of snow.

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 from Montauk NY to Marthas Vineyard extending out to 20 nm South of Block Island (ANZ256)

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