| NWS Forecast for: Block Island Sound (ANZ237) Issued by: National Weather Service Norton, MA Last Update: 405 AM EDT Mon Mar 16 2026 | |
Today: S winds 25 to 30 kt with gusts up to 40 kt. Seas 5 to 7 ft, building to 7 to 10 ft this afternoon. Wave detail: SE 7 ft at 8 seconds and E 1 foot at 5 seconds, becoming SE 10 ft at 6 seconds. Patchy dense fog. A chance of tstms. Rain this morning, then a chance of rain this afternoon. Vsby 1 nm or less. Tonight: S winds 25 to 35 kt with gusts up to 50 kt. Seas 9 to 13 ft, building to 11 to 15 ft after midnight. Wave detail: S 13 ft at 9 seconds and S 1 foot at 5 seconds, becoming S 15 ft at 10 seconds and SW 3 ft at 6 seconds. Patchy fog. Rain. Vsby 1 nm or less. Tue: W winds 20 to 25 kt with gusts up to 35 kt. Seas 9 to 12 ft, subsiding to 7 to 10 ft in the afternoon. Wave detail: S 12 ft at 11 seconds and W 4 ft at 5 seconds, becoming S 9 ft at 11 seconds and W 4 ft at 5 seconds. Tue Night: W winds 15 to 20 kt with gusts up to 30 kt. Seas 6 to 9 ft. Wave detail: S 8 ft at 11 seconds and W 4 ft at 5 seconds. Wed: NW winds 10 to 15 kt, becoming SW 5 to 10 kt in the afternoon. Seas 4 to 6 ft. Wave detail: SE 6 ft at 10 seconds and W 2 ft at 4 seconds. Wed Night: S winds 5 to 10 kt. Seas 3 to 4 ft. Wave detail: SE 4 ft at 10 seconds. Thu Through Fri Night: W winds 15 to 20 kt. Seas 2 to 4 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: Block Island Sound (ANZ237) | |
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