| NWS Forecast for: Block Island Sound (ANZ237) Issued by: National Weather Service Norton, MA Last Update: 103 PM EDT Tue Sep 30 2025 | |
This Afternoon: NE winds 10 to 15 kt with gusts up to 20 kt. Seas 4 to 6 ft. Wave detail: SE 6 ft at 15 seconds. Tonight: NE winds 15 to 20 kt, increasing to 20 to 25 kt after midnight. Gusts up to 30 kt. Seas 5 to 8 ft. Wave detail: SE 6 ft at 15 seconds and NE 5 ft at 5 seconds. Wed: NE winds 20 to 25 kt with gusts up to 30 kt. Seas 6 to 9 ft. Wave detail: NE 6 ft at 6 seconds and S 6 ft at 15 seconds. Wed Night: NE winds 20 to 25 kt, diminishing to 15 to 20 kt after midnight. Gusts up to 30 kt. Seas 6 to 9 ft. Wave detail: NE 6 ft at 6 seconds and SE 6 ft at 14 seconds. Thu: NE winds 15 to 20 kt with gusts up to 25 kt, diminishing to 10 to 15 kt in the afternoon. Seas 5 to 7 ft. Wave detail: NE 5 ft at 5 seconds and SE 3 ft at 12 seconds. Thu Night: E winds 5 to 10 kt, becoming N after midnight. Seas 3 to 5 ft. Wave detail: E 3 ft at 10 seconds and SE 3 ft at 12 seconds. Fri Through Sat Night: SW winds 5 to 10 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: Block Island Sound (ANZ237) | |
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