Coastal Waters Forecast
Issued by NWS Boston, MA

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120 FZUS51 KBOX 041106 CWFBOX Coastal Waters Forecast for Massachusetts and Rhode Island National Weather Service Boston/Norton MA 705 AM EDT Tue Jun 4 2024 Coastal waters from the Merrimack River MA to Watch Hill RI out to 25 NM ANZ200-050000- 705 AM EDT Tue Jun 4 2024 .Synopsis for Massachusetts and Rhode Island coastal waters... Weak high pres will build over the waters through tonight, then move south of the waters Wed. Low pres over the Ohio Valley will reach southern New England Thu, then stall over the area Fri and Sat. $$ ANZ250-050000- Coastal waters east of Ipswich Bay and the Stellwagen Bank National Marine Sanctuary- 705 AM EDT Tue Jun 4 2024 .TODAY...E winds around 5 kt. Seas around 2 ft this morning, then 1 foot or less. Wave Detail: E 1 foot at 3 seconds and S 1 foot at 5 seconds, becoming E 1 foot at 3 seconds and SE 1 foot at 9 seconds. .TONIGHT...S winds 5 to 10 kt. Seas around 2 ft. Wave Detail: SE 1 foot at 3 seconds and S 1 foot at 8 seconds. .WED...SW winds 5 to 10 kt, becoming S 10 to 15 kt with gusts up to 20 kt in the afternoon. Seas 2 to 3 ft. Wave Detail: S 2 ft at 3 seconds and NE 1 foot at 4 seconds. .WED NIGHT...S winds 10 to 15 kt. Gusts up to 20 kt in the evening. Seas 2 to 3 ft. Wave Detail: S 2 ft at 4 seconds and E 1 foot at 8 seconds. A chance of showers after midnight. .THU...SE winds around 10 kt. Seas 2 to 3 ft. Wave Detail: S 2 ft at 4 seconds and E 1 foot at 9 seconds. Showers likely. Vsby 1 to 3 NM. .THU NIGHT...SE winds around 10 kt. Seas 2 to 3 ft. Wave Detail: S 2 ft at 4 seconds and E 1 foot at 9 seconds. Showers likely, mainly in the evening. .FRI THROUGH SAT NIGHT...SW winds 5 to 10 kt. Seas 2 to 3 ft. A chance of showers. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ251-050000- Massachusetts Bay and Ipswich Bay- 705 AM EDT Tue Jun 4 2024 .TODAY...E winds 5 to 10 kt. Seas 1 foot or less. Wave Detail: E 1 foot at 4 seconds and S 1 foot at 5 seconds. .TONIGHT...S winds 5 to 10 kt, becoming SW after midnight. Seas 1 foot or less. Wave Detail: S 1 foot at 3 seconds and S 1 foot at 8 seconds. .WED...SW winds 5 to 10 kt, becoming S 10 to 15 kt with gusts up to 20 kt in the afternoon. Seas 1 foot or less, then around 2 ft in the afternoon. Wave Detail: SE 1 foot at 3 seconds and S 1 foot at 8 seconds, becoming SE 1 foot at 4 seconds and S 1 foot at 8 seconds. .WED NIGHT...S winds 10 to 15 kt. Seas around 2 ft. Wave Detail: S 2 ft at 4 seconds and E 1 foot at 8 seconds. A chance of showers after midnight. .THU...SE winds around 10 kt. Seas around 2 ft. Wave Detail: S 2 ft at 4 seconds and E 1 foot at 9 seconds. Showers. Vsby 1 to 3 NM. .THU NIGHT...SE winds 5 to 10 kt. Seas around 2 ft. Wave Detail: S 2 ft at 4 seconds and S 1 foot at 8 seconds. Showers likely, mainly in the evening. .FRI THROUGH SAT NIGHT...SW winds 5 to 10 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. $$ ANZ231-050000- Cape Cod Bay- 705 AM EDT Tue Jun 4 2024 .TODAY...E winds around 5 kt. Seas 1 foot or less. Wave Detail: NE 1 foot at 4 seconds and S 1 foot at 6 seconds. .TONIGHT...SE winds around 5 kt, becoming SW after midnight. Seas 1 foot or less. Wave Detail: S 1 foot at 2 seconds and E 1 foot at 3 seconds. .WED...SW winds 5 to 10 kt, increasing to 10 to 15 kt with gusts up to 20 kt in the afternoon. Seas 1 foot or less. Wave Detail: SW 1 foot at 2 seconds and NE 1 foot at 4 seconds. .WED NIGHT...S winds 10 to 15 kt. Seas around 2 ft. Wave Detail: S 1 foot at 4 seconds and S 1 foot at 8 seconds. A chance of showers after midnight. .THU...S winds around 10 kt. Seas 1 foot or less, then around 2 ft in the afternoon. Wave Detail: S 1 foot at 3 seconds and E 1 foot at 8 seconds, becoming S 2 ft at 4 seconds and E 1 foot at 9 seconds. Showers likely. Vsby 1 to 3 NM. .THU NIGHT...S winds 5 to 10 kt. Seas around 2 ft. Wave Detail: S 2 ft at 3 seconds and S 2 ft at 8 seconds. A chance of showers. .FRI...SE winds 5 to 10 kt. Seas around 2 ft. A chance of showers. .FRI NIGHT THROUGH SAT NIGHT...SW winds 5 to 10 kt. Seas around 2 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ254-050000- Coastal waters from Provincetown MA to Chatham MA to Nantucket MA out 20 nm- 705 AM EDT Tue Jun 4 2024 .TODAY...NE winds around 5 kt. Seas around 2 ft. Wave Detail: NE 1 foot at 4 seconds and S 1 foot at 6 seconds. .TONIGHT...SE winds around 5 kt, becoming SW after midnight. Seas around 2 ft. Wave Detail: NE 1 foot at 4 seconds and S 1 foot at 7 seconds. .WED...SW winds 5 to 10 kt, increasing to 10 to 15 kt with gusts up to 20 kt in the afternoon. Seas 2 to 3 ft. Wave Detail: S 2 ft at 4 seconds and NE 1 foot at 4 seconds. .WED NIGHT...S winds 10 to 15 kt. Gusts up to 20 kt in the evening. Seas 2 to 3 ft. Wave Detail: SW 2 ft at 4 seconds and S 1 foot at 8 seconds. A chance of showers after midnight. .THU...S winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. Wave Detail: SW 3 ft at 4 seconds and E 2 ft at 9 seconds. Showers likely. Vsby 1 to 3 NM. .THU NIGHT...S winds 10 to 15 kt. Gusts up to 20 kt in the evening. Seas 3 to 4 ft. Wave Detail: S 4 ft at 8 seconds and S 3 ft at 4 seconds. A chance of showers. .FRI...S winds around 10 kt. Seas 3 to 4 ft. A chance of showers. .FRI NIGHT THROUGH SAT NIGHT...SW winds around 10 kt. Seas 3 to 4 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. $$ ANZ255-050000- Coastal Waters extending out to 25 nm South of Marthas Vineyard and Nantucket- 705 AM EDT Tue Jun 4 2024 .TODAY...E winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: S 2 ft at 7 seconds and E 1 foot at 4 seconds. .TONIGHT...SE winds around 5 kt, becoming S after midnight. Seas around 2 ft. Wave Detail: SW 2 ft at 5 seconds and E 1 foot at 4 seconds. .WED...SW winds 5 to 10 kt, increasing to 10 to 15 kt in the afternoon. Seas around 2 ft. Wave Detail: SW 2 ft at 4 seconds and E 1 foot at 4 seconds. .WED NIGHT...S winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: S 3 ft at 4 seconds and S 1 foot at 8 seconds. A chance of showers after midnight. .THU...S winds around 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. Wave Detail: S 4 ft at 5 seconds and E 1 foot at 8 seconds. Showers likely. Vsby 1 to 3 NM. .THU NIGHT...SW winds 10 to 15 kt. Gusts up to 20 kt in the evening. Seas 3 to 5 ft. Wave Detail: S 5 ft at 7 seconds and E 1 foot at 9 seconds. A chance of showers. .FRI THROUGH SAT NIGHT...SW winds 10 to 15 kt. Seas 3 to 5 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ256-050000- Coastal Waters from Montauk NY to Marthas Vineyard extending out to 20 nm South of Block Island- 705 AM EDT Tue Jun 4 2024 .TODAY...E winds 5 to 10 kt. Seas around 2 ft. Wave Detail: S 2 ft at 7 seconds and E 1 foot at 3 seconds. .TONIGHT...S winds 5 to 10 kt. Seas around 2 ft. Wave Detail: S 2 ft at 5 seconds and E 1 foot at 4 seconds. .WED...S winds 5 to 10 kt. Seas around 2 ft. Wave Detail: S 1 foot at 2 seconds and SE 1 foot at 5 seconds. .WED NIGHT...S winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: S 2 ft at 4 seconds and S 1 foot at 8 seconds. Showers likely after midnight with vsby 1 to 3 NM. .THU...S winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. Wave Detail: SE 4 ft at 7 seconds. Showers likely. Vsby 1 to 3 NM. .THU NIGHT...SW winds 10 to 15 kt. Gusts up to 20 kt in the evening. Seas 4 to 5 ft. Wave Detail: S 5 ft at 7 seconds and E 1 foot at 9 seconds. A chance of showers. .FRI THROUGH SAT NIGHT...SW winds 10 to 15 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. $$ ANZ232-050000- Nantucket Sound- 705 AM EDT Tue Jun 4 2024 .TODAY...E winds 5 to 10 kt. Seas around 2 ft. Wave Detail: E 1 foot at 3 seconds and SW 1 foot at 6 seconds. .TONIGHT...SE winds around 5 kt, becoming SW after midnight. Seas 1 foot or less. Wave Detail: SW 1 foot at 2 seconds and E 1 foot at 3 seconds. .WED...SW winds 5 to 10 kt, increasing to 10 to 15 kt in the afternoon. Seas 1 foot or less, then around 2 ft in the afternoon. Wave Detail: SW 1 foot at 2 seconds and E 1 foot at 4 seconds, becoming S 2 ft at 4 seconds and NE 1 foot at 4 seconds. .WED NIGHT...S winds 10 to 15 kt. Seas around 2 ft. Wave Detail: S 2 ft at 4 seconds and E 1 foot at 4 seconds. A chance of showers after midnight. .THU...S winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft. Wave Detail: S 2 ft at 4 seconds and E 1 foot at 8 seconds. Showers likely. Vsby 1 to 3 NM. .THU NIGHT...S winds 10 to 15 kt, diminishing to 5 to 10 kt after midnight. Seas 2 to 3 ft. Wave Detail: S 3 ft at 8 seconds and S 2 ft at 4 seconds. A chance of showers. .FRI THROUGH SAT NIGHT...SW winds 10 to 15 kt. Seas 2 to 3 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ233-050000- Vineyard Sound- 705 AM EDT Tue Jun 4 2024 .TODAY...E winds 5 to 10 kt. Seas 1 foot or less. Wave Detail: E 1 foot at 3 seconds and SW 1 foot at 5 seconds. .TONIGHT...S winds 5 to 10 kt. Seas 1 foot or less. Wave Detail: E 1 foot at 3 seconds and SW 1 foot at 5 seconds. .WED...SW winds 5 to 10 kt. Seas 1 foot or less, then around 2 ft in the afternoon. Wave Detail: SW 1 foot at 2 seconds and E 1 foot at 4 seconds, becoming E 1 foot at 4 seconds and S 1 foot at 4 seconds. .WED NIGHT...S winds around 10 kt. Seas around 2 ft in the evening, then 1 foot or less. Wave Detail: S 2 ft at 4 seconds and S 1 foot at 8 seconds, becoming S 1 foot at 4 seconds and E 1 foot at 8 seconds. A chance of showers after midnight with vsby 1 to 3 NM. .THU...S winds 10 to 15 kt. Seas around 2 ft. Wave Detail: S 2 ft at 4 seconds and E 1 foot at 8 seconds. Showers likely. Vsby 1 to 3 NM. .THU NIGHT...S winds 10 to 15 kt, becoming SW 5 to 10 kt after midnight. Seas 2 to 3 ft. Wave Detail: S 3 ft at 8 seconds and S 2 ft at 4 seconds. A chance of showers. .FRI THROUGH SAT NIGHT...SW winds 10 to 15 kt. Seas 2 to 3 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. $$ ANZ234-050000- Buzzards Bay- 705 AM EDT Tue Jun 4 2024 .TODAY...E winds around 5 kt, becoming SE this afternoon. Seas 1 foot or less. Wave Detail: S 1 foot at 4 seconds and S 1 foot at 8 seconds. .TONIGHT...S winds 5 to 10 kt. Seas 1 foot or less. Wave Detail: S 1 foot at 4 seconds and S 1 foot at 8 seconds. .WED...SW winds 5 to 10 kt, increasing to 10 to 15 kt with gusts up to 20 kt in the afternoon. Seas 1 foot or less. Wave Detail: SW 1 foot at 2 seconds and E 1 foot at 4 seconds. .WED NIGHT...S winds 10 to 15 kt. Seas 1 foot or less. Wave Detail: S 1 foot at 4 seconds and S 1 foot at 8 seconds. A chance of showers after midnight. .THU...S winds 10 to 15 kt. Gusts up to 20 kt in the afternoon. Seas around 2 ft. Wave Detail: S 2 ft at 4 seconds and E 1 foot at 8 seconds. Showers likely. Vsby 1 to 3 NM. .THU NIGHT...S winds 10 to 15 kt, becoming SW 5 to 10 kt after midnight. Seas around 2 ft. Wave Detail: S 2 ft at 4 seconds and S 2 ft at 8 seconds. A chance of showers. .FRI THROUGH SAT NIGHT...SW winds 10 to 15 kt. Seas around 2 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ235-050000- Rhode Island Sound- 705 AM EDT Tue Jun 4 2024 .TODAY...SE winds 5 to 10 kt. Seas around 2 ft. Wave Detail: S 2 ft at 7 seconds and E 1 foot at 3 seconds. .TONIGHT...S winds 5 to 10 kt. Seas around 2 ft in the evening, then 1 foot or less. Wave Detail: S 2 ft at 7 seconds and E 1 foot at 3 seconds, becoming SE 1 foot at 5 seconds and SE 1 foot at 8 seconds. .WED...SW winds 5 to 10 kt. Seas 1 foot or less, then around 2 ft in the afternoon. Wave Detail: SW 1 foot at 2 seconds and SE 1 foot at 5 seconds, becoming S 2 ft at 3 seconds and E 1 foot at 4 seconds. .WED NIGHT...S winds 10 to 15 kt. Seas around 2 ft. Wave Detail: SW 2 ft at 3 seconds and SE 2 ft at 8 seconds. A chance of showers after midnight with vsby 1 to 3 NM. .THU...S winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: S 3 ft at 5 seconds and E 1 foot at 8 seconds. Showers likely. Vsby 1 to 3 NM. .THU NIGHT...S winds 10 to 15 kt, becoming SW 5 to 10 kt after midnight. Seas 3 to 4 ft. Wave Detail: S 4 ft at 7 seconds and E 1 foot at 9 seconds. A chance of showers. .FRI THROUGH SAT NIGHT...SW winds 10 to 15 kt. Seas 2 to 4 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. $$ ANZ237-050000- Block Island Sound- 705 AM EDT Tue Jun 4 2024 .TODAY...E winds 5 to 10 kt. Seas around 2 ft. Wave Detail: S 2 ft at 7 seconds and E 1 foot at 9 seconds. .TONIGHT...S winds 5 to 10 kt. Seas around 2 ft in the evening, then 1 foot or less. Wave Detail: SE 1 foot at 4 seconds and SE 1 foot at 8 seconds. .WED...S winds 5 to 10 kt. Seas 1 foot or less. Wave Detail: SW 1 foot at 2 seconds and SE 1 foot at 5 seconds. .WED NIGHT...S winds around 10 kt. Seas around 2 ft. Wave Detail: S 2 ft at 4 seconds and SE 1 foot at 8 seconds. Showers likely after midnight with vsby 1 to 3 NM. .THU...S winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: SE 3 ft at 7 seconds. Showers likely. Vsby 1 to 3 NM in the morning. .THU NIGHT...SW winds 5 to 10 kt. Seas 3 to 4 ft. Wave Detail: S 4 ft at 8 seconds. A chance of showers. .FRI THROUGH SAT NIGHT...SW winds 5 to 10 kt. Seas 2 to 4 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ230-050000- Boston Harbor- 705 AM EDT Tue Jun 4 2024 .TODAY...E winds 5 to 10 kt. Waves 1 foot or less. .TONIGHT...SE winds 5 to 10 kt, becoming SW after midnight. Waves 1 foot or less. .WED...SW winds around 5 kt, becoming S in the afternoon. Waves 1 foot or less. .WED NIGHT...S winds 10 to 15 kt. Waves around 2 ft in the evening, then 1 foot or less. A chance of showers after midnight. .THU...SE winds around 10 kt. Waves 1 foot or less, then around 2 ft in the afternoon. Showers. .THU NIGHT...E winds 5 to 10 kt. Waves around 2 ft in the evening, then 1 foot or less. Showers likely, mainly in the evening. .FRI THROUGH SAT NIGHT...SW winds 5 to 10 kt. Waves around 2 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. $$ ANZ236-050000- Narragansett Bay- 705 AM EDT Tue Jun 4 2024 .TODAY...E winds around 5 kt, becoming S this afternoon. Waves 1 foot or less. .TONIGHT...S winds 5 to 10 kt. Waves 1 foot or less. .WED...SW winds 5 to 10 kt. Waves 1 foot or less. .WED NIGHT...S winds around 10 kt. Waves 1 foot or less, then around 2 ft after midnight. Showers likely after midnight. .THU...S winds around 10 kt. Waves 2 to 3 ft. Showers likely. Vsby 1 to 3 NM in the morning. .THU NIGHT...SW winds 5 to 10 kt. Waves 2 to 3 ft. A chance of showers. .FRI...S winds 5 to 10 kt. Waves 2 to 3 ft. A chance of showers. .FRI NIGHT THROUGH SAT NIGHT...SW winds 5 to 10 kt. Waves 2 to 3 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ For the latest updates...please visit our webpage at www.weather.gov/boston You can follow us on Facebook at www.facebook.com/NWSBoston You can follow us on Twitter at @NWSBoston