FZUS51 KBOX 252306 CWFBOX Coastal Waters Forecast for Massachusetts and Rhode Island National Weather Service Boston/Norton MA 705 PM EDT Sat Apr 25 2026 Coastal waters from the Merrimack River MA to Watch Hill RI out to 60 NM ANZ200-261200- 705 PM EDT Sat Apr 25 2026 .Synopsis for Massachusetts and Rhode Island coastal waters... Low pres is expected to track through the southern offshore waters Sun into Mon before moving into the Maritimes. High pres then reasserts itself into the region early next week. $$ ANZ250-261200- Coastal waters east of Ipswich Bay and the Stellwagen Bank National Marine Sanctuary- 705 PM EDT Sat Apr 25 2026 .TONIGHT...SW winds around 5 kt, becoming W after midnight. Seas around 2 ft. Wave Detail: E 2 ft at 9 seconds and E 2 ft at 14 seconds. .SUN...NE winds around 5 kt, increasing to 5 to 10 kt in the afternoon. Seas around 2 ft. Wave Detail: E 2 ft at 13 seconds and N 1 foot at 3 seconds. .SUN NIGHT...NE winds 5 to 10 kt. Seas around 2 ft. Wave Detail: E 2 ft at 12 seconds and N 1 foot at 3 seconds. .MON...NE winds around 10 kt. Seas around 2 ft. Wave Detail: NE 2 ft at 3 seconds and SE 2 ft at 8 seconds. .MON NIGHT...NE winds around 10 kt. Seas 2 to 4 ft. Wave Detail: E 4 ft at 9 seconds and E 2 ft at 5 seconds. .TUE...NE winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 5 ft. Wave Detail: E 5 ft at 10 seconds and NE 2 ft at 6 seconds. .TUE NIGHT...NE winds around 10 kt. Gusts up to 20 kt in the evening. Seas 4 to 6 ft. .WED...NE winds around 10 kt. Seas 5 to 7 ft. A chance of showers. .WED NIGHT THROUGH THU NIGHT...N winds 10 to 15 kt with gusts up to 20 kt. Seas 5 to 7 ft. Showers likely. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ251-261200- Massachusetts Bay and Ipswich Bay- 705 PM EDT Sat Apr 25 2026 .TONIGHT...S winds around 5 kt, becoming W around 5 kt after midnight. Seas around 2 ft. Wave Detail: E 2 ft at 8 seconds and NW 1 foot at 3 seconds. .SUN...NE winds 5 to 10 kt. Seas around 2 ft. Wave Detail: E 2 ft at 6 seconds and E 2 ft at 13 seconds. .SUN NIGHT...NE winds 5 to 10 kt. Seas around 2 ft. Wave Detail: E 2 ft at 7 seconds and NW 1 foot at 2 seconds. .MON...NE winds 5 to 10 kt. Seas around 2 ft. Wave Detail: NE 2 ft at 3 seconds and SE 2 ft at 8 seconds. .MON NIGHT...NE winds 5 to 10 kt. Seas around 2 ft. Wave Detail: NE 2 ft at 4 seconds and E 2 ft at 8 seconds. .TUE...NE winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. Wave Detail: E 4 ft at 7 seconds and N 1 foot at 3 seconds. .TUE NIGHT...NE winds 5 to 10 kt. Seas 3 to 5 ft. .WED...NE winds around 10 kt. Seas 3 to 5 ft. A chance of showers. .WED NIGHT AND THU...E winds around 10 kt. Seas 3 to 5 ft. Showers likely. .THU NIGHT...N winds 10 to 15 kt with gusts up to 20 kt. Seas 5 to 7 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. $$ ANZ231-261200- Cape Cod Bay- 705 PM EDT Sat Apr 25 2026 .TONIGHT...Light and variable winds. Seas around 2 ft. Wave Detail: N 1 foot at 4 seconds and S 1 foot at 7 seconds. .SUN...NE winds around 5 kt. Seas around 2 ft in the morning, then 1 foot or less. Wave Detail: E 2 ft at 9 seconds and N 1 foot at 4 seconds, becoming N 1 foot at 4 seconds and S 1 foot at 7 seconds. .SUN NIGHT...NE winds 5 to 10 kt. Seas 1 foot or less. Wave Detail: N 1 foot at 2 seconds and SE 1 foot at 8 seconds. .MON...NE winds around 10 kt with gusts up to 20 kt. Seas around 2 ft. Wave Detail: N 1 foot at 3 seconds and SE 1 foot at 8 seconds. .MON NIGHT THROUGH TUE NIGHT...NE winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Wave Detail: E 3 ft at 8 seconds and N 1 foot at 3 seconds. .WED...NE winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: E 3 ft at 9 seconds and NE 2 ft at 11 seconds. A chance of showers. .WED NIGHT THROUGH THU NIGHT...N winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. Showers likely. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ254-261200- Coastal waters from Provincetown MA to Chatham MA to Nantucket MA out 20 NM- 705 PM EDT Sat Apr 25 2026 .TONIGHT...E winds around 5 kt, becoming W after midnight. Seas 2 to 3 ft. Wave Detail: N 2 ft at 5 seconds and E 2 ft at 9 seconds. A slight chance of showers after midnight. .SUN...NE winds around 5 kt, increasing to 5 to 10 kt in the afternoon. Seas 2 to 3 ft. Wave Detail: E 2 ft at 9 seconds and E 2 ft at 13 seconds. A chance of showers. .SUN NIGHT...NE winds 5 to 10 kt, increasing to 10 to 15 kt after midnight. Seas 2 to 3 ft. Wave Detail: N 2 ft at 3 seconds and S 2 ft at 8 seconds. A chance of showers in the evening. .MON...NE winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 4 ft. Wave Detail: E 4 ft at 7 seconds and N 3 ft at 4 seconds. .MON NIGHT...NE winds 10 to 15 kt with gusts up to 20 kt. Seas 4 to 6 ft. Wave Detail: E 5 ft at 6 seconds and N 1 foot at 3 seconds. .TUE AND TUE NIGHT...NE winds 10 to 15 kt with gusts up to 25 kt. Seas 5 to 7 ft. Wave Detail: E 7 ft at 10 seconds and N 4 ft at 4 seconds. .WED...NE winds around 10 kt. Seas 5 to 7 ft. A chance of showers. .WED NIGHT THROUGH THU NIGHT...NW winds 10 to 15 kt with gusts up to 20 kt. Seas 5 to 7 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. $$ ANZ255-261200- Coastal Waters extending out to 25 NM South of Marthas Vineyard and Nantucket- 705 PM EDT Sat Apr 25 2026 .TONIGHT...SE winds around 5 kt. Seas 2 to 3 ft. Wave Detail: E 2 ft at 9 seconds and SE 2 ft at 15 seconds. A slight chance of showers this evening, then a chance of showers after midnight. .SUN...E winds 10 to 15 kt. Gusts up to 20 kt in the afternoon. Seas 2 to 3 ft. Wave Detail: E 3 ft at 4 seconds and E 2 ft at 10 seconds. A chance of showers. .SUN NIGHT...NE winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. Wave Detail: E 3 ft at 4 seconds and E 3 ft at 8 seconds. A chance of rain. Patchy fog in the evening. .MON...NE winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to 5 ft. Wave Detail: SE 4 ft at 7 seconds and NE 3 ft at 4 seconds. A chance of showers. Patchy fog in the morning. .MON NIGHT...NE winds 15 to 20 kt with gusts up to 25 kt. Seas 4 to 6 ft. Wave Detail: E 6 ft at 8 seconds and N 3 ft at 4 seconds. .TUE AND TUE NIGHT...NE winds 15 to 20 kt with gusts up to 25 kt. Seas 5 to 7 ft. Wave Detail: E 7 ft at 10 seconds and N 3 ft at 5 seconds. .WED...NE winds 10 to 15 kt. Seas 5 to 7 ft. A chance of showers. .WED NIGHT...E winds 10 to 15 kt. Seas 5 to 7 ft. Showers likely. .THU...SE winds 10 to 15 kt. Seas 4 to 6 ft. Showers likely. .THU NIGHT...NW winds 10 to 15 kt with gusts up to 20 kt. Seas 5 to 7 ft. A chance of showers. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ256-261200- Coastal Waters from Montauk NY to Marthas Vineyard extending out to 20 NM South of Block Island- 705 PM EDT Sat Apr 25 2026 .TONIGHT...SE winds 5 to 10 kt. Seas around 2 ft. Wave Detail: NE 1 foot at 3 seconds and S 1 foot at 7 seconds. A chance of showers this evening, then showers likely after midnight. .SUN...E winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. Wave Detail: SE 4 ft at 6 seconds and E 2 ft at 13 seconds. A chance of showers. .SUN NIGHT...NE winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 4 ft. Wave Detail: SE 4 ft at 7 seconds and NW 1 foot at 2 seconds. A chance of showers in the evening. .MON...NE winds 15 to 20 kt with gusts up to 25 kt. Seas 4 to 5 ft. Wave Detail: SE 4 ft at 7 seconds and NE 3 ft at 4 seconds. .MON NIGHT THROUGH TUE NIGHT...NE winds 15 to 20 kt with gusts up to 25 kt. Seas 4 to 6 ft. Wave Detail: E 6 ft at 10 seconds and N 3 ft at 5 seconds. .WED...NE winds around 10 kt. Seas 5 to 6 ft. Wave Detail: E 6 ft at 10 seconds and NE 3 ft at 6 seconds. A chance of showers. .WED NIGHT AND THU...E winds 10 to 15 kt. Seas 5 to 6 ft. Showers likely. .THU NIGHT...NW winds 15 to 20 kt. Seas 4 to 6 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. $$ ANZ232-261200- Nantucket Sound- 705 PM EDT Sat Apr 25 2026 .TONIGHT...SE winds around 5 kt this evening, becoming light and variable. Seas around 2 ft. Wave Detail: NE 1 foot at 3 seconds and S 1 foot at 7 seconds. A slight chance of showers. .SUN...E winds 5 to 10 kt. Seas around 2 ft. Wave Detail: SE 2 ft at 9 seconds and NW 1 foot at 3 seconds. A chance of showers in the morning. .SUN NIGHT...NE winds 5 to 10 kt, increasing to 10 to 15 kt after midnight. Seas around 2 ft. Wave Detail: E 2 ft at 9 seconds and E 1 foot at 3 seconds. A chance of showers in the evening. .MON...NE winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 3 ft. Wave Detail: SE 3 ft at 7 seconds and NE 2 ft at 3 seconds. .MON NIGHT THROUGH TUE NIGHT...NE winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 4 ft. Wave Detail: NE 3 ft at 5 seconds and E 3 ft at 8 seconds. .WED...NE winds around 10 kt. Seas 2 to 4 ft. Wave Detail: NE 3 ft at 5 seconds and E 3 ft at 11 seconds. A chance of showers. .WED NIGHT AND THU...E winds around 10 kt. Seas 2 to 4 ft. Showers likely. .THU NIGHT...NW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. A chance of showers. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ233-261200- Vineyard Sound- 705 PM EDT Sat Apr 25 2026 .TONIGHT...SE winds around 5 kt. Seas 1 foot or less. Wave Detail: E 1 foot at 2 seconds and N 1 foot at 3 seconds. A chance of showers. .SUN...NE winds 5 to 10 kt, becoming E 10 to 15 kt in the afternoon. Seas around 2 ft. Wave Detail: E 1 foot at 2 seconds and S 1 foot at 6 seconds. A chance of showers in the morning. .SUN NIGHT...NE winds 10 to 15 kt. Seas around 2 ft. Wave Detail: E 2 ft at 7 seconds and NE 1 foot at 3 seconds. A chance of showers in the evening. .MON...NE winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Wave Detail: N 2 ft at 3 seconds and SE 2 ft at 7 seconds. .MON NIGHT THROUGH TUE NIGHT...NE winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Wave Detail: N 2 ft at 4 seconds and SE 2 ft at 8 seconds. .WED...NE winds around 10 kt. Seas 2 to 3 ft. Wave Detail: SE 2 ft at 11 seconds and NE 1 foot at 3 seconds. A chance of showers. .WED NIGHT AND THU...E winds 5 to 10 kt. Seas 2 to 3 ft. Showers likely. .THU NIGHT...NW 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. $$ ANZ234-261200- Buzzards Bay- 705 PM EDT Sat Apr 25 2026 .TONIGHT...SE winds around 5 kt. Seas 1 foot or less. Wave Detail: E 1 foot at 2 seconds and N 1 foot at 3 seconds. A chance of showers. .SUN...NE winds 5 to 10 kt. Seas 1 foot or less, then around 2 ft in the afternoon. Wave Detail: E 1 foot at 3 seconds and N 1 foot at 3 seconds, becoming E 1 foot at 2 seconds and N 1 foot at 3 seconds. A chance of showers in the morning. .SUN NIGHT...NE winds 5 to 10 kt. Seas around 2 ft. Wave Detail: NE 2 ft at 9 seconds and N 1 foot at 2 seconds. .MON...NE winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Wave Detail: N 2 ft at 3 seconds and E 2 ft at 8 seconds. .MON NIGHT THROUGH TUE NIGHT...NE winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft. Wave Detail: N 2 ft at 4 seconds and SE 2 ft at 9 seconds. .WED...NE winds 5 to 10 kt. Seas around 2 ft. Wave Detail: NE 1 foot at 2 seconds and S 1 foot at 10 seconds. A chance of showers. .WED NIGHT AND THU...E winds 5 to 10 kt. Seas around 2 ft. Showers likely. .THU NIGHT...NW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. A chance of showers. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ235-261200- Rhode Island Sound- 705 PM EDT Sat Apr 25 2026 .TONIGHT...SE winds 5 to 10 kt. Seas around 2 ft. Wave Detail: N 1 foot at 3 seconds and E 1 foot at 3 seconds. A chance of showers. .SUN...E winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: E 3 ft at 4 seconds and S 1 foot at 7 seconds. A chance of showers in the morning. .SUN NIGHT...NE winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: E 3 ft at 5 seconds and E 3 ft at 10 seconds. .MON...NE winds around 15 kt with gusts up to 25 kt. Seas 2 to 4 ft. Wave Detail: SE 3 ft at 7 seconds and NE 2 ft at 3 seconds. .MON NIGHT THROUGH TUE NIGHT...NE winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 4 ft. Wave Detail: SE 4 ft at 8 seconds and N 2 ft at 5 seconds. .WED...NE winds around 10 kt. Seas 3 to 4 ft. Wave Detail: SE 4 ft at 10 seconds and NE 2 ft at 3 seconds. A chance of showers. .WED NIGHT AND THU...E winds around 10 kt. Seas 3 to 4 ft. Showers likely. .THU NIGHT...NW winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 5 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. $$ ANZ237-261200- Block Island Sound- 705 PM EDT Sat Apr 25 2026 .TONIGHT...SE winds 5 to 10 kt, diminishing to around 5 kt after midnight. Seas around 2 ft. Wave Detail: N 1 foot at 3 seconds and E 1 foot at 3 seconds. Showers likely. .SUN...E winds 10 to 15 kt. Gusts up to 20 kt in the afternoon. Seas 2 to 3 ft. Wave Detail: SE 3 ft at 5 seconds and E 1 foot at 9 seconds. A chance of showers in the morning. .SUN NIGHT...NE winds 10 to 15 kt. Gusts up to 20 kt in the evening. Seas 2 to 3 ft. Wave Detail: E 3 ft at 4 seconds and E 3 ft at 10 seconds. .MON...NE winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. Wave Detail: SE 3 ft at 7 seconds and NE 2 ft at 4 seconds. .MON NIGHT THROUGH TUE NIGHT...NE winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 4 ft. Wave Detail: E 4 ft at 8 seconds and NE 3 ft at 5 seconds. .WED...NE winds 5 to 10 kt. Seas 3 to 4 ft. Wave Detail: E 4 ft at 10 seconds and NE 2 ft at 4 seconds. A chance of showers. .WED NIGHT AND THU...E winds 5 to 10 kt. Seas 3 to 4 ft. Showers likely. .THU NIGHT...NW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. A chance of showers. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ230-261200- Boston Harbor- 705 PM EDT Sat Apr 25 2026 .TONIGHT...S winds around 5 kt, becoming W around 5 kt after midnight. Waves 1 foot or less. .SUN...NE winds around 5 kt, becoming E in the afternoon. Waves 1 foot or less. .SUN NIGHT...NE winds 5 to 10 kt. Waves 1 foot or less. .MON...NE winds 5 to 10 kt. Waves 1 foot or less, then around 2 ft in the afternoon. .MON NIGHT THROUGH TUE NIGHT...NE winds 10 to 15 kt with gusts up to 20 kt. Waves around 2 ft. .WED...NE winds 5 to 10 kt. Waves 1 foot or less. A chance of showers. .WED NIGHT THROUGH THU NIGHT...N winds 10 to 15 kt with gusts up to 20 kt. Waves around 2 ft, except 3 to 5 ft at the outer harbor entrance. 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. $$ ANZ236-261200- Narragansett Bay- 705 PM EDT Sat Apr 25 2026 .TONIGHT...S winds 5 to 10 kt, diminishing to around 5 kt after midnight. Waves 1 foot or less. A chance of showers. .SUN...E winds 5 to 10 kt. Waves around 2 ft. A chance of showers in the morning. .SUN NIGHT...NE winds 5 to 10 kt. Waves around 2 ft. .MON...NE winds 10 to 15 kt with gusts up to 20 kt. Waves around 2 ft. .MON NIGHT THROUGH TUE NIGHT...NE winds 10 to 15 kt with gusts up to 20 kt. Waves 2 to 3 ft. .WED...NE winds 5 to 10 kt. Waves 2 to 3 ft. A chance of showers. .WED NIGHT AND THU...E winds 5 to 10 kt. Waves 2 to 3 ft. Showers likely. .THU NIGHT...NW winds 10 to 15 kt. Waves 2 to 3 ft. A chance of showers. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ280-261200- Ocean Waters from the Merrimack River to Plymouth from 40 to 60 NM- 705 PM EDT Sat Apr 25 2026 .TONIGHT...W winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: NE 2 ft at 4 seconds and SE 2 ft at 7 seconds. .SUN...NE winds 5 to 10 kt. Seas around 2 ft. Wave Detail: E 2 ft at 10 seconds and E 2 ft at 13 seconds. .SUN NIGHT...NE winds 5 to 10 kt. Seas around 2 ft. Wave Detail: E 2 ft at 10 seconds and E 2 ft at 12 seconds. .MON...NE winds around 10 kt. Gusts up to 20 kt in the afternoon. Seas 2 to 3 ft. Wave Detail: SE 3 ft at 8 seconds and NE 2 ft at 3 seconds. .MON NIGHT...NE winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. Wave Detail: SE 4 ft at 7 seconds and N 1 foot at 2 seconds. .TUE...NE winds 10 to 15 kt with gusts up to 20 kt. Seas 4 to 6 ft. Wave Detail: E 6 ft at 10 seconds and NE 1 foot at 2 seconds. .TUE NIGHT...NE winds 10 to 15 kt with gusts up to 20 kt. Seas 5 to 7 ft. A chance of showers after midnight. .WED...E winds 10 to 15 kt with gusts up to 20 kt. Seas 6 to 7 ft. A chance of showers. .WED NIGHT THROUGH THU NIGHT...E winds 15 to 20 kt with gusts up to 25 kt. Seas 7 to 9 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. $$ ANZ281-261200- Ocean Waters from Provincetown to Nantucket from 20 to 60 NM- 705 PM EDT Sat Apr 25 2026 .TONIGHT...NW winds around 5 kt. Seas 3 to 4 ft. Wave Detail: E 3 ft at 14 seconds and N 2 ft at 5 seconds. A slight chance of showers after midnight. .SUN...NE winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: E 3 ft at 13 seconds and E 2 ft at 9 seconds. A chance of showers. .SUN NIGHT...NE winds 5 to 10 kt, increasing to 10 to 15 kt after midnight. Gusts up to 20 kt. Seas 2 to 4 ft. Wave Detail: SE 3 ft at 8 seconds and N 2 ft at 3 seconds. A chance of rain. .MON...NE winds 15 to 20 kt with gusts up to 25 kt. Seas 4 to 6 ft. Wave Detail: E 6 ft at 6 seconds and S 2 ft at 8 seconds. A chance of showers. .MON NIGHT...NE winds 15 to 20 kt with gusts up to 25 kt. Seas 5 to 8 ft. Wave Detail: E 7 ft at 7 seconds and S 2 ft at 8 seconds. .TUE AND TUE NIGHT...NE winds 15 to 20 kt with gusts up to 25 kt. Seas 7 to 10 ft. Wave Detail: E 10 ft at 10 seconds and NE 4 ft at 4 seconds. .WED...E winds 10 to 15 kt with gusts up to 20 kt. Seas 7 to 9 ft. A chance of showers. .WED NIGHT THROUGH THU NIGHT...S winds 10 to 15 kt with gusts up to 20 kt. Seas 6 to 9 ft. Showers likely. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ282-261200- Ocean Waters from Marthas Vineyard to Nantucket from 25 to 60 NM- 705 PM EDT Sat Apr 25 2026 .TONIGHT...E winds 5 to 10 kt. Seas around 3 ft. Wave Detail: E 3 ft at 14 seconds and N 2 ft at 4 seconds. A slight chance of showers this evening, then a chance of showers after midnight. .SUN...E winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to 5 ft. Wave Detail: NE 4 ft at 5 seconds and E 3 ft at 13 seconds. Showers likely. .SUN NIGHT...NE winds 15 to 20 kt with gusts up to 25 kt. Seas 4 to 6 ft. Wave Detail: SE 5 ft at 7 seconds and E 2 ft at 12 seconds. Showers likely in the evening, then a chance of rain after midnight. Patchy fog in the evening. .MON...NE winds 20 to 25 kt with gusts up to 30 kt. Seas 5 to 8 ft. Wave Detail: E 8 ft at 8 seconds and N 4 ft at 4 seconds. A chance of showers. .MON NIGHT...NE winds 20 to 25 kt with gusts up to 30 kt. Seas 6 to 9 ft. Wave Detail: E 8 ft at 8 seconds and N 4 ft at 4 seconds. A chance of showers in the evening. .TUE AND TUE NIGHT...N winds 15 to 20 kt with gusts up to 25 kt. Seas 7 to 10 ft. Wave Detail: E 10 ft at 10 seconds and N 5 ft at 5 seconds. .WED...NE winds 10 to 15 kt. Seas 7 to 8 ft. A chance of showers. .WED NIGHT AND THU...SE winds 10 to 15 kt. Seas 6 to 8 ft. Showers likely. .THU NIGHT...W winds 15 to 20 kt. Seas 6 to 8 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. $$ ANZ283-261200- Ocean Waters from Montauk NY to Marthas Vineyard from 25 to 60 NM- 705 PM EDT Sat Apr 25 2026 .TONIGHT...E winds 5 to 10 kt. Gusts up to 20 kt after midnight. Seas 2 to 3 ft. Wave Detail: NE 2 ft at 4 seconds and E 2 ft at 9 seconds. A chance of showers this evening, then showers likely after midnight. .SUN...E winds 15 to 20 kt, becoming NE 20 to 25 kt in the afternoon. Gusts up to 30 kt. Seas 3 to 4 ft, building to 4 to 6 ft in the afternoon. Wave Detail: E 4 ft at 4 seconds and E 2 ft at 9 seconds, becoming E 5 ft at 5 seconds and SE 3 ft at 9 seconds. Showers, mainly in the morning. Patchy fog in the morning. .SUN NIGHT...NE winds 20 to 25 kt, diminishing to 15 to 20 kt after midnight. Gusts up to 30 kt. Seas 5 to 6 ft. Wave Detail: E 6 ft at 7 seconds and S 2 ft at 8 seconds. A chance of rain. .MON...NE winds 15 to 20 kt with gusts up to 30 kt. Seas 5 to 8 ft. Wave Detail: E 7 ft at 8 seconds and N 4 ft at 4 seconds. A chance of showers in the morning. .MON NIGHT THROUGH TUE NIGHT...NE winds 15 to 20 kt with gusts up to 30 kt. Seas 6 to 9 ft. Wave Detail: E 8 ft at 10 seconds and N 4 ft at 5 seconds. .WED...NE winds 10 to 15 kt. Seas 6 to 7 ft. Wave Detail: E 7 ft at 10 seconds and N 4 ft at 6 seconds. .WED NIGHT AND THU...SE winds 10 to 15 kt. Seas 6 to 7 ft. Showers likely. .THU NIGHT...NW winds 15 to 20 kt. Seas 6 to 8 ft. A chance of showers. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ For the latest updates...please visit our webpage at www.weather.gov/boston You can follow us on Facebook at www.facebook.com/us.nationalweatherservice.boston.gov You can follow us on Twitter at @NWSBoston