FZUS51 KBOX 111703 CWFBOX Coastal Waters Forecast for Massachusetts and Rhode Island National Weather Service Boston/Norton MA 103 PM EDT Sun Aug 11 2024 Coastal waters from the Merrimack River MA to Watch Hill RI out to 25 NM ANZ200-120600- 103 PM EDT Sun Aug 11 2024 .Synopsis for Massachusetts and Rhode Island coastal waters... High pressure establishes itself over the waters bringing nice boating weather for mariners today. A weak cold frontal passage then takes place on Monday, which could bring showers later in the day to the waters, but high pressure building back in brings a return to tranquil conditions for the waters through late in the week. $$ ANZ250-120600- Coastal waters east of Ipswich Bay and the Stellwagen Bank National Marine Sanctuary- 103 PM EDT Sun Aug 11 2024 .THIS AFTERNOON...S winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: SE 3 ft at 8 seconds and W 1 foot at 3 seconds. .TONIGHT...SW winds around 10 kt. Seas 2 to 3 ft. Wave Detail: SE 3 ft at 8 seconds and SW 1 foot at 3 seconds. .MON...W winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: SE 2 ft at 8 seconds and W 1 foot at 3 seconds. .MON NIGHT...W winds 5 to 10 kt. Seas around 2 ft. Wave Detail: SE 2 ft at 8 seconds and W 1 foot at 3 seconds. .TUE...NW winds 5 to 10 kt, becoming SW in the afternoon. Seas around 2 ft. Wave Detail: SE 2 ft at 8 seconds and NW 1 foot at 3 seconds. .TUE NIGHT...SW winds around 5 kt, becoming NW after midnight. Seas around 2 ft. Wave Detail: SE 2 ft at 8 seconds and W 1 foot at 3 seconds. .WED THROUGH THU NIGHT...S winds around 5 kt. Seas around 2 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ251-120600- Massachusetts Bay and Ipswich Bay- 103 PM EDT Sun Aug 11 2024 .THIS AFTERNOON...S winds 5 to 10 kt. Seas around 2 ft. Wave Detail: SE 2 ft at 9 seconds and SW 1 foot at 2 seconds. .TONIGHT...SW winds 5 to 10 kt. Seas around 2 ft. Wave Detail: SE 2 ft at 9 seconds and SW 1 foot at 2 seconds. .MON...W winds 5 to 10 kt. Seas around 2 ft. Wave Detail: SE 2 ft at 9 seconds and W 1 foot at 2 seconds. .MON NIGHT...W winds 5 to 10 kt. Seas around 2 ft in the evening, then 1 foot or less. Wave Detail: W 1 foot at 2 seconds and SE 1 foot at 10 seconds, becoming NW 1 foot at 2 seconds and SE 1 foot at 10 seconds. .TUE...NW winds 5 to 10 kt, becoming SW in the afternoon. Seas 1 foot or less. Wave Detail: NW 1 foot at 2 seconds and SE 1 foot at 10 seconds. .TUE NIGHT...SW winds around 5 kt, becoming NW after midnight. Seas 1 foot or less. Wave Detail: W 1 foot at 2 seconds and E 1 foot at 9 seconds. .WED THROUGH THU NIGHT...S winds around 5 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. $$ ANZ231-120600- Cape Cod Bay- 103 PM EDT Sun Aug 11 2024 .THIS AFTERNOON...S winds 5 to 10 kt. Seas around 2 ft. Wave Detail: SE 2 ft at 8 seconds and W 1 foot at 3 seconds. .TONIGHT...SW winds 5 to 10 kt. Seas 1 foot or less. Wave Detail: SW 1 foot at 2 seconds and SE 1 foot at 7 seconds. .MON...W winds 5 to 10 kt. Seas 1 foot or less. Wave Detail: W 1 foot at 2 seconds and SE 1 foot at 8 seconds. .MON NIGHT...W winds 5 to 10 kt. Seas 1 foot or less. Wave Detail: W 1 foot at 2 seconds and SE 1 foot at 8 seconds. .TUE AND TUE NIGHT...W winds 5 to 10 kt. Seas 1 foot or less. Wave Detail: NW 1 foot at 3 seconds and SE 1 foot at 8 seconds. .WED THROUGH THU NIGHT...S winds around 5 kt. Seas 1 foot or less. Wave Detail: NW 1 foot at 3 seconds and SE 1 foot at 6 seconds. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ254-120600- Coastal waters from Provincetown MA to Chatham MA to Nantucket MA out 20 nm- 103 PM EDT Sun Aug 11 2024 .THIS AFTERNOON...SW winds 5 to 10 kt. Seas 2 to 4 ft. Wave Detail: S 4 ft at 8 seconds and W 1 foot at 2 seconds. .TONIGHT...SW winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: SE 3 ft at 8 seconds and W 1 foot at 3 seconds. .MON...W winds 5 to 10 kt. Gusts up to 20 kt in the afternoon. Seas 2 to 3 ft. Wave Detail: SE 3 ft at 8 seconds and W 1 foot at 3 seconds. .MON NIGHT...W winds 5 to 10 kt. Gusts up to 20 kt in the evening. Seas 2 to 3 ft. Wave Detail: S 3 ft at 8 seconds and W 2 ft at 4 seconds. .TUE AND TUE NIGHT...W winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: S 2 ft at 8 seconds and NW 1 foot at 3 seconds. .WED THROUGH THU NIGHT...SE winds around 5 kt. Seas around 2 ft. Wave Detail: SE 2 ft at 8 seconds and NW 1 foot at 3 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. $$ ANZ255-120600- Coastal Waters extending out to 25 nm South of Marthas Vineyard and Nantucket- 103 PM EDT Sun Aug 11 2024 .THIS AFTERNOON...SW winds 5 to 10 kt. Seas 3 to 4 ft. Wave Detail: S 4 ft at 8 seconds. .TONIGHT...SW winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: S 3 ft at 8 seconds and SW 1 foot at 2 seconds. .MON...W winds 5 to 10 kt, increasing to 10 to 15 kt with gusts up to 20 kt in the afternoon. Seas 2 to 3 ft. Wave Detail: SE 3 ft at 8 seconds and W 2 ft at 4 seconds. .MON NIGHT...W winds 10 to 15 kt. Gusts up to 20 kt in the evening. Seas 2 to 3 ft. Wave Detail: W 3 ft at 4 seconds and SE 3 ft at 8 seconds. .TUE AND TUE NIGHT...W winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: W 2 ft at 5 seconds and S 2 ft at 7 seconds. .WED THROUGH THU NIGHT...SE winds 5 to 10 kt. Seas around 2 ft. Wave Detail: S 2 ft at 8 seconds and W 1 foot at 4 seconds. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ256-120600- Coastal Waters from Montauk NY to Marthas Vineyard extending out to 20 nm South of Block Island- 103 PM EDT Sun Aug 11 2024 .THIS AFTERNOON...SW winds 5 to 10 kt. Seas 3 to 4 ft. Wave Detail: S 4 ft at 8 seconds. .TONIGHT...W winds 5 to 10 kt. Seas around 3 ft. Wave Detail: S 3 ft at 8 seconds and SW 1 foot at 2 seconds. .MON...W winds 5 to 10 kt, increasing to 10 to 15 kt with gusts up to 20 kt in the afternoon. Seas around 3 ft. Wave Detail: SE 3 ft at 8 seconds and W 2 ft at 4 seconds. .MON NIGHT...NW winds 10 to 15 kt. Gusts up to 20 kt in the evening. Seas 2 to 3 ft. Wave Detail: W 2 ft at 4 seconds and SE 2 ft at 8 seconds. .TUE AND TUE NIGHT...NW winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: NW 2 ft at 4 seconds and S 2 ft at 8 seconds. .WED THROUGH THU NIGHT...S winds around 5 kt. Seas around 2 ft. Wave Detail: SE 2 ft at 10 seconds and W 1 foot at 3 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. $$ ANZ232-120600- Nantucket Sound- 103 PM EDT Sun Aug 11 2024 .THIS AFTERNOON...SW winds 5 to 10 kt. Seas around 2 ft. Wave Detail: S 2 ft at 8 seconds and SW 1 foot at 3 seconds. .TONIGHT...SW winds 5 to 10 kt. Seas around 2 ft. Wave Detail: SW 1 foot at 3 seconds and S 1 foot at 8 seconds. .MON...W winds 5 to 10 kt, increasing to 10 to 15 kt with gusts up to 20 kt in the afternoon. Seas around 2 ft. Wave Detail: SW 2 ft at 3 seconds and S 1 foot at 8 seconds. .MON NIGHT...W winds 10 to 15 kt. Gusts up to 20 kt in the evening. Seas around 2 ft. Wave Detail: W 2 ft at 4 seconds and SE 1 foot at 8 seconds. .TUE AND TUE NIGHT...W winds 5 to 10 kt. Seas around 2 ft. Wave Detail: NW 1 foot at 3 seconds and SE 1 foot at 8 seconds. .WED THROUGH THU NIGHT...S winds 5 to 10 kt. Seas 1 foot or less. Wave Detail: W 1 foot at 3 seconds and SE 1 foot at 8 seconds. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ233-120600- Vineyard Sound- 103 PM EDT Sun Aug 11 2024 .THIS AFTERNOON...SW winds 5 to 10 kt. Seas around 2 ft. Wave Detail: S 2 ft at 7 seconds and SW 1 foot at 3 seconds. .TONIGHT...SW winds 5 to 10 kt. Seas around 2 ft. Wave Detail: S 2 ft at 7 seconds and SW 1 foot at 3 seconds. .MON...W winds 5 to 10 kt, increasing to 10 to 15 kt with gusts up to 20 kt in the afternoon. Seas around 2 ft. Wave Detail: SW 2 ft at 4 seconds and S 2 ft at 7 seconds. .MON NIGHT...NW winds 10 to 15 kt. Gusts up to 20 kt in the evening. Seas around 2 ft. Wave Detail: SW 2 ft at 4 seconds and S 2 ft at 7 seconds. .TUE...NW winds 5 to 10 kt, becoming W in the afternoon. Seas 1 foot or less. Wave Detail: NW 1 foot at 4 seconds and S 1 foot at 7 seconds. .TUE NIGHT...SW winds 5 to 10 kt, becoming NW after midnight. Seas 1 foot or less. Wave Detail: SW 1 foot at 3 seconds and S 1 foot at 7 seconds. .WED THROUGH THU NIGHT...S winds around 5 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. $$ ANZ234-120600- Buzzards Bay- 103 PM EDT Sun Aug 11 2024 .THIS AFTERNOON...SW winds 5 to 10 kt. Seas around 2 ft. Wave Detail: S 2 ft at 7 seconds and SW 1 foot at 3 seconds. .TONIGHT...SW winds 5 to 10 kt. Seas around 2 ft. Wave Detail: S 2 ft at 7 seconds and SW 1 foot at 3 seconds. .MON...W winds 5 to 10 kt, becoming SW 10 to 15 kt with gusts up to 20 kt in the afternoon. Seas around 2 ft. Wave Detail: SW 2 ft at 3 seconds and S 1 foot at 7 seconds. .MON NIGHT...NW winds 10 to 15 kt. Seas around 2 ft in the evening, then 1 foot or less. Wave Detail: SW 2 ft at 4 seconds and S 1 foot at 7 seconds, becoming W 1 foot at 4 seconds and S 1 foot at 8 seconds. .TUE...NW winds 5 to 10 kt, becoming W in the afternoon. Seas 1 foot or less. Wave Detail: NW 1 foot at 3 seconds and S 1 foot at 7 seconds. .TUE NIGHT...SW winds 5 to 10 kt, becoming NW after midnight. Seas 1 foot or less. Wave Detail: SW 1 foot at 3 seconds and S 1 foot at 7 seconds. .WED THROUGH THU NIGHT...S winds 5 to 10 kt. Seas 1 foot or less. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ235-120600- Rhode Island Sound- 103 PM EDT Sun Aug 11 2024 .THIS AFTERNOON...SW winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: S 3 ft at 8 seconds. .TONIGHT...W winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: S 3 ft at 8 seconds and SW 1 foot at 2 seconds. .MON...W winds 5 to 10 kt, becoming SW 10 to 15 kt with gusts up to 20 kt in the afternoon. Seas 2 to 3 ft. Wave Detail: SE 3 ft at 7 seconds and SW 2 ft at 4 seconds. .MON NIGHT...NW winds 10 to 15 kt. Gusts up to 20 kt in the evening. Seas 2 to 3 ft. Wave Detail: S 3 ft at 8 seconds and W 2 ft at 4 seconds. .TUE...NW winds 5 to 10 kt, becoming W in the afternoon. Seas around 2 ft. Wave Detail: W 2 ft at 3 seconds and S 2 ft at 8 seconds. .TUE NIGHT...W winds 5 to 10 kt, becoming NW after midnight. Seas around 2 ft. Wave Detail: S 2 ft at 8 seconds and SW 1 foot at 3 seconds. .WED THROUGH THU NIGHT...SW winds around 5 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. $$ ANZ237-120600- Block Island Sound- 103 PM EDT Sun Aug 11 2024 .THIS AFTERNOON...SW winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: S 3 ft at 8 seconds. .TONIGHT...W winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: S 3 ft at 8 seconds and SW 1 foot at 2 seconds. .MON...W winds 5 to 10 kt, increasing to 10 to 15 kt in the afternoon. Seas 2 to 3 ft. Wave Detail: SE 3 ft at 8 seconds and W 2 ft at 3 seconds. .MON NIGHT...NW winds around 10 kt. Seas 2 to 3 ft. Wave Detail: S 2 ft at 8 seconds and W 1 foot at 3 seconds. .TUE...NW winds 5 to 10 kt, becoming W in the afternoon. Seas around 2 ft. Wave Detail: S 2 ft at 8 seconds and W 1 foot at 3 seconds. .TUE NIGHT...W winds 5 to 10 kt, becoming NW after midnight. Seas around 2 ft. Wave Detail: S 2 ft at 8 seconds and W 1 foot at 3 seconds. .WED THROUGH THU NIGHT...SW winds around 5 kt. Seas 1 foot or less. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ230-120600- Boston Harbor- 103 PM EDT Sun Aug 11 2024 .THIS AFTERNOON...S winds 5 to 10 kt. Waves 1 foot or less. .TONIGHT...SW winds 5 to 10 kt. Waves 1 foot or less. .MON...W winds 5 to 10 kt. Waves 1 foot or less. .MON NIGHT...W winds 5 to 10 kt. Waves 1 foot or less. .TUE AND TUE NIGHT...NW winds 5 to 10 kt. Waves 1 foot or less. .WED THROUGH THU NIGHT...S winds around 5 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. $$ ANZ236-120600- Narragansett Bay- 103 PM EDT Sun Aug 11 2024 .THIS AFTERNOON...SW winds 5 to 10 kt. Waves around 2 ft. .TONIGHT...SW winds 5 to 10 kt. Waves around 2 ft. .MON...W winds 5 to 10 kt. Gusts up to 20 kt in the afternoon. Waves around 2 ft. .MON NIGHT...NW winds 5 to 10 kt. Waves around 2 ft. .TUE...NW winds 5 to 10 kt, becoming W in the afternoon. Waves around 2 ft. .TUE NIGHT...W winds 5 to 10 kt, becoming NW after midnight. Waves around 2 ft in the evening, then 1 foot or less. .WED THROUGH THU NIGHT...SW winds around 5 kt. Waves 1 foot or less. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ 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