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: 1005 AM EDT Wed Jul 9 2025
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This Afternoon: SW winds 5 to 10 kt. Seas 2 to 3 ft. Wave detail: S 3 ft at 7 seconds and SE 1 foot at 12 seconds. A slight chance of showers. Isolated tstms.

Tonight: S winds 5 to 10 kt, becoming SE after midnight. Seas 2 to 3 ft. Wave detail: S 3 ft at 7 seconds and SE 1 foot at 12 seconds. Patchy fog. A chance of showers and tstms after midnight. Vsby 1 nm or less.

Thu: SE winds 5 to 10 kt. Seas 2 to 3 ft. Wave detail: S 3 ft at 7 seconds and SE 1 foot at 12 seconds. Patchy fog. Showers likely with a chance of tstms. Vsby 1 to 3 nm.

Thu Night: SE winds 5 to 10 kt. Seas 2 to 3 ft. Wave detail: S 3 ft at 7 seconds and SE 1 foot at 12 seconds. Showers likely with a chance of tstms in the evening, then a chance of showers after midnight. Patchy fog in the evening with vsby 1 to 3 nm.

Fri: E winds 5 to 10 kt, becoming SE in the afternoon. Seas 2 to 3 ft. Wave detail: S 3 ft at 7 seconds and SE 1 foot at 11 seconds. A chance of showers in the morning.

Fri Night: SE winds 5 to 10 kt, becoming E after midnight. Seas 2 to 3 ft. Wave detail: S 3 ft at 7 seconds and SE 1 foot at 11 seconds.

Sat Through Sun Night: S winds 5 to 10 kt. Seas around 2 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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