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: 703 PM EDT Tue Jul 14 2026




Tonight: SW winds 20 to 25 kt, diminishing to 15 to 20 kt after midnight. Gusts up to 30 kt. Seas 4 to 6 ft. Wave detail: SW 5 ft at 6 seconds and SE 1 foot at 9 seconds.

Wed: W winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 5 ft. Wave detail: W 4 ft at 6 seconds and SE 1 foot at 9 seconds.

Wed Night: W winds 10 to 15 kt, becoming NW 5 to 10 kt after midnight. Seas 2 to 3 ft. Wave detail: W 3 ft at 6 seconds and SE 1 foot at 9 seconds.

Thu: W winds 5 to 10 kt, becoming SW 10 to 15 kt with gusts up to 20 kt in the afternoon. Seas 2 to 3 ft. Wave detail: SW 3 ft at 6 seconds and SE 1 foot at 10 seconds.

Thu Night: W winds 10 to 15 kt with gusts up to 20 kt, becoming NW 5 to 10 kt after midnight. Seas 2 to 3 ft. Wave detail: W 3 ft at 6 seconds and SE 1 foot at 10 seconds.

Fri And Fri Night: W winds 5 to 10 kt. Seas around 2 ft. Wave detail: SW 2 ft at 5 seconds and SE 1 foot at 10 seconds.

Sat: S winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft. A chance of showers and tstms.

Sat Night: SW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Showers likely with a chance of tstms.

Sun: SW winds around 10 kt. Seas 3 to 5 ft. Showers likely.

Sun Night: NW winds 5 to 10 kt. Seas 3 to 5 ft. A chance of showers.

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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