Coastal Waters Forecast for Block Island Sound (ANZ237) (Text-Only)
NWS Forecast for: Block Island Sound (ANZ237)
Issued by: National Weather Service Norton, MA
Last Update: 403 AM EDT Mon Sep 1 2025
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Today: NE winds 10 to 15 kt. Gusts up to 20 kt this afternoon. Seas 2 to 3 ft. Wave detail: NE 2 ft at 3 seconds and SE 2 ft at 7 seconds.

Tonight: NE winds 10 to 15 kt. Gusts up to 20 kt in the evening. Seas 2 to 3 ft. Wave detail: E 3 ft at 6 seconds.

Tue: NE winds 10 to 15 kt, becoming E in the afternoon. Seas 2 to 3 ft. Wave detail: SE 3 ft at 6 seconds and NE 1 foot at 3 seconds.

Tue Night: SE winds 5 to 10 kt, becoming W after midnight. Seas 3 to 4 ft. Wave detail: SE 3 ft at 8 seconds and E 1 foot at 4 seconds.

Wed And Wed Night: SW winds 5 to 10 kt. Seas 2 to 3 ft. Wave detail: SE 3 ft at 8 seconds and SW 1 foot at 3 seconds.

Thu: S winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Wave detail: SE 3 ft at 8 seconds and S 2 ft at 3 seconds.

Thu Night: S winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. A chance of showers.

Fri And Fri Night: S winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. A chance of showers.

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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