| NWS Forecast for: Coastal waters from Provincetown MA to Chatham MA to Nantucket MA out 20 NM (ANZ254) Issued by: National Weather Service Norton, MA Last Update: 705 PM EDT Mon May 18 2026 |  |
Tonight: SW winds 10 to 15 kt. Gusts up to 20 kt after midnight. Seas 2 to 3 ft. Wave detail: SW 3 ft at 5 seconds and SE 2 ft at 8 seconds. Patchy fog. Vsby 1 nm or less. Tue: SW winds 15 to 20 kt. Gusts up to 30 kt in the afternoon. Seas 3 to 5 ft. Wave detail: SW 5 ft at 5 seconds and SE 2 ft at 9 seconds. Patchy fog. Vsby 1 nm or less, increasing to 1 to 3 nm in the afternoon. Tue Night: SW winds 15 to 20 kt with gusts up to 30 kt. Seas 4 to 6 ft. Wave detail: SW 5 ft at 5 seconds and SE 2 ft at 9 seconds. Patchy fog. Vsby 1 nm or less. Wed: SW winds 15 to 20 kt with gusts up to 25 kt. Seas 4 to 6 ft. Wave detail: SW 5 ft at 7 seconds and W 2 ft at 4 seconds. Patchy fog in the morning. A chance of showers in the afternoon. Vsby 1 nm or less in the morning. Wed Night: W winds 15 to 20 kt, becoming NW 10 to 15 kt after midnight. Gusts up to 25 kt. Seas 3 to 5 ft. Wave detail: S 5 ft at 7 seconds and W 2 ft at 4 seconds. A chance of showers. Thu: N winds 10 to 15 kt. Gusts up to 20 kt in the morning. Seas 2 to 4 ft. Wave detail: S 3 ft at 7 seconds and N 2 ft at 4 seconds. A chance of showers in the morning. Thu Night: S winds around 5 kt, becoming NW around 5 kt after midnight. Seas 2 to 3 ft. Fri: E winds around 5 kt. Seas 2 to 3 ft. Fri Night: S winds 5 to 10 kt. Seas around 2 ft. A chance of showers. Sat And Sat Night: E winds 5 to 10 kt, increasing to 10 to 15 kt. Seas 2 to 4 ft. Showers likely. 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: Coastal waters from Provincetown MA to Chatham MA to Nantucket MA out 20 NM (ANZ254) | |
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