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: 1003 AM EDT Thu Sep 4 2025


This Afternoon: S winds 5 to 10 kt. Seas 2 to 3 ft. Wave detail: E 3 ft at 7 seconds.

Tonight: S winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 4 ft. Wave detail: SE 3 ft at 8 seconds and S 2 ft at 3 seconds. Patchy fog. Vsby 1 nm or less, increasing to 1 to 3 nm after midnight.

Fri: S winds 10 to 15 kt, increasing to 15 to 20 kt in the afternoon. Seas 3 to 4 ft. Wave detail: S 3 ft at 4 seconds and SE 3 ft at 8 seconds. Patchy fog in the morning with vsby 1 to 3 nm.

Fri Night: S winds 15 to 20 kt. Seas 4 to 5 ft. Wave detail: S 4 ft at 5 seconds and S 4 ft at 8 seconds.

Sat: S winds around 15 kt with gusts up to 20 kt. Seas 4 to 5 ft. Wave detail: S 4 ft at 7 seconds.

Sat Night: SW winds 10 to 15 kt with gusts up to 20 kt. Seas 4 to 5 ft. Wave detail: S 4 ft at 7 seconds. A chance of showers.

Sun: N winds 10 to 15 kt. Seas 3 to 4 ft. Showers likely.

Sun Night And Mon: NW winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 5 ft. A chance of showers.

Mon Night: N winds 10 to 15 kt with gusts up to 20 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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