Coastal Waters Forecast
Issued by NWS Boston, MA

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744 FZUS51 KBOX 311704 CWFBOX Coastal Waters Forecast for Massachusetts and Rhode Island National Weather Service Boston/Norton MA 104 PM EDT Fri May 31 2024 Coastal waters from the Merrimack River MA to Watch Hill RI out to 25 NM ANZ200-010600- 104 PM EDT Fri May 31 2024 .Synopsis for Massachusetts and Rhode Island coastal waters... High pres builds in from the west today into the weekend, bringing mainly dry pleasant boating weather to the region. This high pres system will remain in control of our weather for the first half of next week. $$ ANZ250-010600- Coastal waters east of Ipswich Bay and the Stellwagen Bank National Marine Sanctuary- 104 PM EDT Fri May 31 2024 .THIS AFTERNOON...SW winds 5 to 10 kt. Seas around 2 ft. Wave Detail: SE 2 ft at 7 seconds and N 1 foot at 4 seconds. .TONIGHT...SW winds around 10 kt, becoming NW after midnight. Seas around 2 ft. Wave Detail: SE 2 ft at 7 seconds and W 1 foot at 3 seconds. .SAT...NW winds 5 to 10 kt, becoming E in the afternoon. Seas around 2 ft. Wave Detail: SE 2 ft at 7 seconds and NW 1 foot at 2 seconds. .SAT NIGHT...SE winds 5 to 10 kt. Seas around 2 ft. Wave Detail: SE 1 foot at 3 seconds and SE 1 foot at 8 seconds. .SUN...S winds 5 to 10 kt. Seas around 2 ft. Wave Detail: SE 1 foot at 4 seconds and E 1 foot at 9 seconds. .SUN NIGHT...S winds around 10 kt, becoming W after midnight. Seas around 2 ft. Wave Detail: S 1 foot at 3 seconds and E 1 foot at 4 seconds. .MON THROUGH TUE NIGHT...S winds 5 to 10 kt. Seas around 2 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ251-010600- Massachusetts Bay and Ipswich Bay- 104 PM EDT Fri May 31 2024 .THIS AFTERNOON...SW winds 5 to 10 kt. Seas around 2 ft. Wave Detail: W 1 foot at 3 seconds and NE 1 foot at 4 seconds. .TONIGHT...W winds 5 to 10 kt. Seas around 2 ft in the evening, then 1 foot or less. Wave Detail: SW 1 foot at 2 seconds and NE 1 foot at 4 seconds, becoming W 1 foot at 2 seconds and NE 1 foot at 4 seconds. .SAT...NW winds 5 to 10 kt, becoming E in the afternoon. Seas 1 foot or less. Wave Detail: NW 1 foot at 2 seconds and NE 1 foot at 3 seconds. .SAT NIGHT...SE winds 5 to 10 kt. Seas around 2 ft. Wave Detail: SE 1 foot at 3 seconds and E 1 foot at 8 seconds. .SUN...SE winds 5 to 10 kt. Seas around 2 ft. Wave Detail: SE 1 foot at 3 seconds and E 1 foot at 10 seconds. .SUN NIGHT...S winds around 10 kt, becoming W after midnight. Seas around 2 ft. Wave Detail: SE 1 foot at 4 seconds and E 1 foot at 9 seconds. .MON THROUGH TUE NIGHT...S 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. $$ ANZ231-010600- Cape Cod Bay- 104 PM EDT Fri May 31 2024 .THIS AFTERNOON...NW winds 5 to 10 kt. Seas 1 foot or less. Wave Detail: N 1 foot at 4 seconds and SE 1 foot at 7 seconds. .TONIGHT...SW winds 5 to 10 kt, becoming NW after midnight. Seas 1 foot or less. Wave Detail: SW 1 foot at 3 seconds and N 1 foot at 4 seconds. .SAT...NW winds 5 to 10 kt, becoming NE in the afternoon. Seas 1 foot or less. Wave Detail: N 1 foot at 4 seconds and SE 1 foot at 7 seconds. .SAT NIGHT...SE winds 5 to 10 kt. Seas 1 foot or less. Wave Detail: SE 1 foot at 3 seconds and SE 1 foot at 8 seconds. .SUN...S winds 5 to 10 kt. Seas 1 foot or less. Wave Detail: S 1 foot at 2 seconds and E 1 foot at 3 seconds. .SUN NIGHT...SW winds 5 to 10 kt. Seas 1 foot or less. Wave Detail: S 1 foot at 2 seconds and E 1 foot at 4 seconds. .MON THROUGH TUE NIGHT...S winds 5 to 10 kt. Seas 1 foot or less. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ254-010600- Coastal waters from Provincetown MA to Chatham MA to Nantucket MA out 20 nm- 104 PM EDT Fri May 31 2024 .THIS AFTERNOON...NW winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: SE 2 ft at 7 seconds and N 1 foot at 4 seconds. .TONIGHT...SW winds 5 to 10 kt, becoming NW after midnight. Seas around 2 ft. Wave Detail: SE 2 ft at 7 seconds and W 1 foot at 4 seconds. .SAT...NW winds 5 to 10 kt, becoming NE in the afternoon. Seas around 2 ft. Wave Detail: SE 2 ft at 7 seconds and N 1 foot at 4 seconds. .SAT NIGHT...SE winds 5 to 10 kt. Seas around 2 ft. Wave Detail: SE 2 ft at 8 seconds and SW 1 foot at 3 seconds. .SUN...S winds 5 to 10 kt. Seas around 2 ft. Wave Detail: S 1 foot at 3 seconds and NE 1 foot at 4 seconds. .SUN NIGHT...SW winds around 10 kt. Seas around 2 ft. Wave Detail: SW 2 ft at 3 seconds and NE 1 foot at 5 seconds. .MON THROUGH TUE NIGHT...SE 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. $$ ANZ255-010600- Coastal Waters extending out to 25 nm South of Marthas Vineyard and Nantucket- 104 PM EDT Fri May 31 2024 .THIS AFTERNOON...W winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: SE 2 ft at 7 seconds and W 1 foot at 3 seconds. .TONIGHT...W winds 5 to 10 kt. Seas around 2 ft. Wave Detail: W 2 ft at 3 seconds and SE 2 ft at 7 seconds. .SAT...NW winds around 10 kt, becoming W in the afternoon. Seas around 2 ft. Wave Detail: W 2 ft at 4 seconds and SE 2 ft at 7 seconds. .SAT NIGHT...S winds 5 to 10 kt, becoming SE after midnight. Seas around 2 ft. Wave Detail: SW 2 ft at 4 seconds and NE 1 foot at 4 seconds. .SUN AND SUN NIGHT...SW winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: SW 2 ft at 4 seconds and NE 1 foot at 4 seconds. .MON THROUGH TUE NIGHT...SE winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: E 2 ft at 3 seconds and SW 2 ft at 4 seconds. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ256-010600- Coastal Waters from Montauk NY to Marthas Vineyard extending out to 20 nm South of Block Island- 104 PM EDT Fri May 31 2024 .THIS AFTERNOON...W winds 5 to 10 kt. Seas around 2 ft. Wave Detail: SE 2 ft at 7 seconds and W 1 foot at 3 seconds. .TONIGHT...W winds around 10 kt, becoming NW after midnight. Seas around 2 ft. Wave Detail: W 2 ft at 3 seconds and SE 2 ft at 7 seconds. .SAT...NW winds around 10 kt, becoming SW in the afternoon. Seas around 2 ft. Wave Detail: W 2 ft at 4 seconds and SE 2 ft at 7 seconds. .SAT NIGHT...SW winds 5 to 10 kt, becoming E after midnight. Seas around 2 ft. Wave Detail: SW 2 ft at 4 seconds and SE 2 ft at 7 seconds. .SUN...SW winds 5 to 10 kt. Seas around 2 ft. Wave Detail: SW 2 ft at 4 seconds and SE 1 foot at 8 seconds. .SUN NIGHT...SW winds 10 to 15 kt. Seas around 2 ft. Wave Detail: S 2 ft at 4 seconds and SE 1 foot at 9 seconds. A chance of showers after midnight. .MON THROUGH TUE NIGHT...SE winds 5 to 10 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. $$ ANZ232-010600- Nantucket Sound- 104 PM EDT Fri May 31 2024 .THIS AFTERNOON...W winds 5 to 10 kt. Seas around 2 ft. Wave Detail: NW 1 foot at 3 seconds and NE 1 foot at 4 seconds. .TONIGHT...SW winds around 10 kt, becoming NW after midnight. Seas around 2 ft. Wave Detail: SW 1 foot at 3 seconds and NE 1 foot at 4 seconds. .SAT...NW winds 5 to 10 kt, becoming NE in the afternoon. Seas around 2 ft in the morning, then 1 foot or less. Wave Detail: NW 1 foot at 3 seconds and NE 1 foot at 4 seconds, becoming W 1 foot at 3 seconds and NE 1 foot at 4 seconds. .SAT NIGHT...SE winds 5 to 10 kt. Seas 1 foot or less. Wave Detail: NE 1 foot at 3 seconds and SW 1 foot at 3 seconds. .SUN AND SUN NIGHT...SW winds 10 to 15 kt. Seas 1 foot or less. Wave Detail: E 1 foot at 3 seconds and SW 1 foot at 3 seconds. .MON THROUGH TUE NIGHT...SE winds 5 to 10 kt. Seas 1 foot or less. Wave Detail: W 1 foot at 3 seconds and NE 1 foot at 4 seconds. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ233-010600- Vineyard Sound- 104 PM EDT Fri May 31 2024 .THIS AFTERNOON...SW winds 5 to 10 kt. Seas 1 foot or less. Wave Detail: W 1 foot at 2 seconds and NE 1 foot at 3 seconds. .TONIGHT...SW winds around 10 kt, becoming NW after midnight. Seas around 2 ft. Wave Detail: SW 1 foot at 3 seconds and NE 1 foot at 4 seconds. .SAT...NW winds around 5 kt, becoming SW in the afternoon. Seas around 2 ft in the morning, then 1 foot or less. Wave Detail: W 1 foot at 4 seconds and SE 1 foot at 7 seconds, becoming W 1 foot at 4 seconds and NE 1 foot at 4 seconds. .SAT NIGHT...SE winds 5 to 10 kt. Seas 1 foot or less. Wave Detail: SW 1 foot at 3 seconds and SE 1 foot at 7 seconds. .SUN AND SUN NIGHT...SW winds 5 to 10 kt. Seas 1 foot or less. Wave Detail: SW 1 foot at 4 seconds and SE 1 foot at 8 seconds. .MON THROUGH TUE NIGHT...SE winds 5 to 10 kt. Seas 1 foot or less. Wave Detail: E 1 foot at 4 seconds and SW 1 foot at 4 seconds. 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. $$ ANZ234-010600- Buzzards Bay- 104 PM EDT Fri May 31 2024 .THIS AFTERNOON...SW winds 5 to 10 kt. Seas 1 foot or less. Wave Detail: W 1 foot at 2 seconds and NE 1 foot at 3 seconds. .TONIGHT...SW winds 5 to 10 kt, becoming NW after midnight. Seas 1 foot or less. Wave Detail: SW 1 foot at 3 seconds and NE 1 foot at 4 seconds. .SAT...NW winds around 5 kt, becoming SW in the afternoon. Seas 1 foot or less. Wave Detail: N 1 foot at 4 seconds and SE 1 foot at 7 seconds. .SAT NIGHT...SE winds 5 to 10 kt. Seas 1 foot or less. Wave Detail: E 1 foot at 2 seconds and SW 1 foot at 3 seconds. .SUN AND SUN NIGHT...SW winds 5 to 10 kt. Seas 1 foot or less. Wave Detail: SW 1 foot at 4 seconds and SE 1 foot at 8 seconds. .MON THROUGH TUE NIGHT...SE winds 5 to 10 kt. Seas 1 foot or less. Wave Detail: E 1 foot at 4 seconds and SW 1 foot at 4 seconds. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ235-010600- Rhode Island Sound- 104 PM EDT Fri May 31 2024 .THIS AFTERNOON...SW winds 5 to 10 kt. Seas around 2 ft. Wave Detail: SE 2 ft at 7 seconds and NE 1 foot at 2 seconds. .TONIGHT...W winds around 10 kt, becoming NW after midnight. Seas around 2 ft. Wave Detail: SW 2 ft at 3 seconds and SE 2 ft at 7 seconds. .SAT...NW winds 5 to 10 kt, becoming SW in the afternoon. Seas around 2 ft. Wave Detail: SE 2 ft at 7 seconds and W 1 foot at 4 seconds. .SAT NIGHT...S winds 5 to 10 kt, becoming E after midnight. Seas around 2 ft in the evening, then 1 foot or less. Wave Detail: SW 1 foot at 3 seconds and SE 1 foot at 7 seconds, becoming SW 1 foot at 4 seconds and SE 1 foot at 7 seconds. .SUN AND SUN NIGHT...SW winds 10 to 15 kt. Seas around 2 ft. Wave Detail: SW 2 ft at 4 seconds and SE 1 foot at 7 seconds. .MON THROUGH TUE NIGHT...SE winds 5 to 10 kt. Seas around 2 ft. Wave Detail: SW 2 ft at 4 seconds and SE 1 foot at 4 seconds. 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. $$ ANZ237-010600- Block Island Sound- 104 PM EDT Fri May 31 2024 .THIS AFTERNOON...SW winds 5 to 10 kt. Seas around 2 ft. Wave Detail: SE 2 ft at 7 seconds and W 1 foot at 2 seconds. .TONIGHT...W winds around 10 kt, becoming NW after midnight. Seas around 2 ft. Wave Detail: SE 2 ft at 7 seconds and NE 1 foot at 3 seconds. .SAT...NW winds 5 to 10 kt, becoming SW in the afternoon. Seas around 2 ft. Wave Detail: SE 2 ft at 7 seconds and W 1 foot at 3 seconds. .SAT NIGHT...SW winds 5 to 10 kt, becoming NE after midnight. Seas around 2 ft in the evening, then 1 foot or less. Wave Detail: SW 1 foot at 3 seconds and SE 1 foot at 7 seconds, becoming W 1 foot at 3 seconds and SE 1 foot at 7 seconds. .SUN...S winds 5 to 10 kt. Seas 1 foot or less. Wave Detail: SW 1 foot at 4 seconds and SE 1 foot at 8 seconds. .SUN NIGHT...SW winds 5 to 10 kt. Seas around 2 ft. Wave Detail: SW 1 foot at 4 seconds and SE 1 foot at 8 seconds. A chance of showers after midnight. .MON THROUGH TUE NIGHT...SE winds 5 to 10 kt. Seas around 2 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ230-010600- Boston Harbor- 104 PM EDT Fri May 31 2024 .THIS AFTERNOON...NW winds 5 to 10 kt. Waves 1 foot or less. .TONIGHT...W winds 5 to 10 kt. Waves 1 foot or less. .SAT...NW winds 5 to 10 kt, becoming E in the afternoon. Waves 1 foot or less. .SAT NIGHT...SE winds 5 to 10 kt. Waves 1 foot or less. .SUN...SE winds 5 to 10 kt. Waves 1 foot or less. .SUN NIGHT...S winds 5 to 10 kt, becoming W after midnight. Waves 1 foot or less. .MON THROUGH TUE NIGHT...S winds 5 to 10 kt. Waves 1 foot or less. 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. $$ ANZ236-010600- Narragansett Bay- 104 PM EDT Fri May 31 2024 .THIS AFTERNOON...W winds 5 to 10 kt. Waves 1 foot or less. .TONIGHT...W winds 5 to 10 kt. Waves 1 foot or less. .SAT...NW winds 5 to 10 kt. Waves 1 foot or less. .SAT NIGHT...S winds 5 to 10 kt, becoming E after midnight. Waves 1 foot or less. .SUN AND SUN NIGHT...SW winds 5 to 10 kt. Waves around 2 ft. .MON THROUGH TUE NIGHT...S winds 5 to 10 kt. Waves around 2 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ 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