| 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: 1004 PM EST Mon Nov 3 2025 |  |
Overnight: W winds 20 to 25 kt with gusts up to 30 kt, becoming NW 25 to 35 kt with gusts up to 40 kt. Seas around 4 ft, building to 5 to 8 ft. Wave detail: SW 4 ft at 5 seconds and SE 1 foot at 10 seconds, becoming W 8 ft at 6 seconds and SE 2 ft at 10 seconds. A chance of rain this evening. Patchy fog. Vsby 1 to 3 nm. Tue: NW winds 25 to 35 kt with gusts up to 40 kt. Seas 6 to 9 ft. Wave detail: NW 9 ft at 7 seconds and S 2 ft at 9 seconds. Tue Night: NW winds 25 to 30 kt with gusts up to 35 kt, diminishing to 20 to 25 kt after midnight. Seas 5 to 7 ft. Wave detail: NW 7 ft at 6 seconds and SE 2 ft at 9 seconds. Wed: W winds 10 to 15 kt with gusts up to 20 kt, becoming SW 25 to 30 kt in the afternoon. Seas 3 to 4 ft, building to 4 to 6 ft in the afternoon. Wave detail: W 4 ft at 6 seconds and SE 1 foot at 10 seconds, becoming SW 6 ft at 6 seconds and SE 1 foot at 10 seconds. Wed Night: W winds 35 to 45 kt with gusts up to 50 kt. Seas 9 to 12 ft. Wave detail: SW 12 ft at 9 seconds. A chance of rain. Thu: NW winds 30 to 40 kt with gusts up to 45 kt, diminishing to 25 to 30 kt in the afternoon. Seas 8 to 11 ft, subsiding to 6 to 9 ft in the afternoon. Wave detail: SW 11 ft at 9 seconds and NW 8 ft at 7 seconds, becoming NW 8 ft at 7 seconds and SW 6 ft at 9 seconds. Thu Night: NW winds 20 to 25 kt with gusts up to 30 kt, diminishing to 10 to 15 kt after midnight. Seas 4 to 6 ft, subsiding to 2 to 4 ft after midnight. Fri: SW winds 25 to 30 kt. Seas 3 to 5 ft. Fri Night: SW winds 25 to 30 kt with gusts up to 35 kt. Seas 8 to 11 ft. Rain. Sat: W winds 20 to 25 kt with gusts up to 30 kt. Seas 7 to 10 ft. Rain likely. Sat Night: NW winds 15 to 20 kt. Seas 5 to 7 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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