| 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: 704 AM EST Fri Nov 7 2025 | |
Today: W winds 5 to 10 kt with gusts up to 20 kt, becoming SW 20 to 25 kt with gusts up to 30 kt this afternoon. Seas 2 to 3 ft, building to 4 to 6 ft this afternoon. Wave detail: W 2 ft at 4 seconds and S 2 ft at 8 seconds, becoming S 6 ft at 7 seconds and SW 4 ft at 4 seconds. Tonight: SW winds 20 to 25 kt with gusts up to 35 kt. Seas 7 to 10 ft. Wave detail: SW 9 ft at 7 seconds and SE 1 foot at 11 seconds. Patchy fog after midnight. Showers after midnight. Sat: SW winds 15 to 20 kt with gusts up to 25 kt, becoming W 10 to 15 kt in the afternoon. Seas 5 to 8 ft, subsiding to 4 to 6 ft in the afternoon. Wave detail: SW 8 ft at 8 seconds and SE 1 foot at 11 seconds, becoming S 6 ft at 7 seconds and SE 1 foot at 11 seconds. Patchy fog in the morning. Showers likely in the morning. Sat Night: NW winds around 10 kt, becoming NE after midnight. Seas 3 to 5 ft. Wave detail: S 5 ft at 8 seconds and SE 1 foot at 11 seconds. Sun: E winds 10 to 15 kt, becoming SE 15 to 20 kt in the afternoon. Seas 3 to 5 ft. Wave detail: S 4 ft at 8 seconds and SE 3 ft at 4 seconds. A chance of rain in the afternoon. Sun Night: SE winds 20 to 25 kt, becoming S 15 to 20 kt after midnight. Seas 4 to 6 ft. Wave detail: SE 5 ft at 6 seconds and SE 1 foot at 10 seconds. Rain. Mon: SW winds 15 to 20 kt. Seas 4 to 6 ft. Rain likely. Mon Night: W winds 25 to 30 kt. Seas 5 to 8 ft. A chance of rain. Tue: W winds 30 to 40 kt with gusts up to 45 kt. Seas 8 to 11 ft. A chance of rain. Tue Night: W winds 35 to 45 kt. Seas 9 to 13 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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