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: 104 PM EDT Wed Jun 24 2026


This Afternoon: W winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 4 ft. Wave detail: SE 4 ft at 7 seconds and W 1 foot at 3 seconds.

Tonight: W winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 4 ft. Wave detail: SE 4 ft at 8 seconds and W 2 ft at 3 seconds.

Thu: SW winds 5 to 10 kt. Seas 3 to 4 ft. Wave detail: SE 4 ft at 7 seconds and W 1 foot at 7 seconds.

Thu Night: S winds around 10 kt. Seas around 3 ft. Wave detail: SW 3 ft at 6 seconds and E 1 foot at 7 seconds. A chance of showers after midnight.

Fri And Fri Night: SW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Wave detail: S 3 ft at 6 seconds. A chance of showers in the morning. A chance of showers after midnight.

Sat: SE winds 5 to 10 kt. Seas 2 to 3 ft. Wave detail: SE 2 ft at 6 seconds and SE 1 foot at 11 seconds. Showers likely.

Sat Night Through Sun Night: SW winds 5 to 10 kt. Seas 2 to 3 ft.

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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