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: 404 PM EST Mon Jan 20 2025




Tonight: NW winds 10 to 15 kt. Gusts up to 20 kt this evening. Seas 3 to 5 ft, subsiding to 2 to 3 ft after midnight. Wave detail: S 4 ft at 11 seconds and W 3 ft at 4 seconds, becoming S 3 ft at 10 seconds and W 1 foot at 3 seconds.

Tue: W winds 10 to 15 kt. Seas 2 to 3 ft. Wave detail: SE 3 ft at 9 seconds and W 1 foot at 3 seconds.

Tue Night: NW winds 10 to 15 kt. Gusts up to 20 kt after midnight. Seas around 2 ft. Wave detail: NW 2 ft at 3 seconds and S 2 ft at 9 seconds.

Wed: NW winds 10 to 15 kt with gusts up to 20 kt, diminishing to 5 to 10 kt in the afternoon. Seas around 2 ft. Wave detail: NW 2 ft at 3 seconds and SE 2 ft at 8 seconds.

Wed Night And Thu: SW winds 10 to 15 kt. Seas 2 to 3 ft. Wave detail: W 2 ft at 3 seconds and SE 1 foot at 6 seconds.

Thu Night: NW winds around 10 kt. Seas around 2 ft. Wave detail: W 2 ft at 4 seconds and SE 1 foot at 7 seconds.

Fri Through Sat: W winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft.

Sat Night: W winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to 5 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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