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: 703 PM EDT Thu Jun 4 2026
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Tonight: SW winds 10 to 15 kt. Gusts up to 20 kt this evening. Seas around 3 ft. Wave detail: SW 3 ft at 4 seconds and SE 2 ft at 9 seconds.

Fri: SW winds 10 to 15 kt. Seas around 3 ft. Wave detail: SW 2 ft at 4 seconds and SE 2 ft at 9 seconds.

Fri Night: SW winds 10 to 15 kt. Seas 3 to 4 ft. Wave detail: SE 3 ft at 8 seconds and SW 2 ft at 4 seconds.

Sat: SW winds 10 to 15 kt, increasing to 15 to 20 kt in the afternoon. Gusts up to 25 kt. Seas 3 to 5 ft. Wave detail: SW 4 ft at 5 seconds and SE 3 ft at 9 seconds.

Sat Night: SW winds 15 to 20 kt with gusts up to 25 kt. Seas 4 to 6 ft. Wave detail: S 5 ft at 7 seconds. Showers likely.

Sun And Sun Night: NE winds 15 to 20 kt. Seas 4 to 5 ft. Wave detail: SW 5 ft at 7 seconds. A chance of showers. A chance of tstms through the night.

Mon: NE winds 15 to 20 kt with gusts up to 25 kt. Seas 5 to 6 ft.

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

Tue: N winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft.

Tue Night: W winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 5 ft.

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.







Zone Forecast: Coastal Waters from Montauk NY to Marthas Vineyard extending out to 20 NM South of Block Island (ANZ256)

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