| 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: 1002 PM EDT Wed Apr 15 2026 | |
| Overnight: SW winds 5 to 10 kt. Gusts up to 20 kt. Seas 3 to 4 ft. A slight chance of tstms. A slight chance of showers, then a chance of showers. Patchy fog with vsby 1 nm or less. Thu: SW winds 10 to 15 kt. Seas 3 to 4 ft. Patchy fog in the morning with vsby 1 nm or less. Thu Night: SW winds 15 to 20 kt, diminishing to 10 to 15 kt after midnight. Seas 3 to 4 ft. Patchy fog after midnight with vsby 1 nm or less. Fri: SW winds 10 to 15 kt, becoming W 5 to 10 kt in the afternoon. Seas 3 to 4 ft. Patchy fog in the morning. A chance of showers in the afternoon. Vsby 1 nm or less in the morning. Fri Night: NE winds around 10 kt. Seas 3 to 4 ft. A chance of showers in the evening. Sat And Sat Night: SE winds 10 to 15 kt. Seas 2 to 3 ft. Sun: SW winds 15 to 20 kt. Seas 2 to 4 ft. Showers likely. Sun Night: W winds 20 to 25 kt. Seas 4 to 6 ft. Showers likely. Mon: W winds 20 to 25 kt. Seas 4 to 6 ft. Mon Night: NW winds 20 to 25 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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