FZUS51 KBOX 102303 CWFBOX Coastal Waters Forecast for Massachusetts and Rhode Island National Weather Service Boston/Norton MA 703 PM EDT Sat Aug 10 2024 Coastal waters from the Merrimack River MA to Watch Hill RI out to 25 NM ANZ200-111200- 703 PM EDT Sat Aug 10 2024 .Synopsis for Massachusetts and Rhode Island coastal waters... Leftover rain showers from overnight on the waters continue to move eastward this morning, with winds decreasing and shifting west today. High pressure then establishes itself over the waters Sunday, bringing nice boating weather for mariners. A weak cold frontal passage then takes place on Mon, 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. $$ ANZ250-111200- Coastal waters east of Ipswich Bay and the Stellwagen Bank National Marine Sanctuary- 703 PM EDT Sat Aug 10 2024 .TONIGHT...W winds 5 to 10 kt. Seas 2 to 4 ft. Wave Detail: SE 3 ft at 8 seconds and W 1 foot at 3 seconds. .SUN...W winds 5 to 10 kt, becoming S in the afternoon. Seas 2 to 3 ft. Wave Detail: SE 3 ft at 9 seconds and W 1 foot at 3 seconds. .SUN NIGHT...SW winds around 10 kt. Seas 2 to 3 ft. Wave Detail: SE 3 ft at 8 seconds and SW 1 foot at 3 seconds. .MON...W winds 5 to 10 kt. Seas around 2 ft. Wave Detail: SE 2 ft at 8 seconds and W 1 foot at 3 seconds. .MON NIGHT...W winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: SE 2 ft at 8 seconds and W 1 foot at 3 seconds. .TUE AND TUE NIGHT...NW winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: NW 2 ft at 3 seconds and SE 2 ft at 8 seconds. .WED THROUGH THU NIGHT...S winds around 5 kt. Seas around 2 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ251-111200- Massachusetts Bay and Ipswich Bay- 703 PM EDT Sat Aug 10 2024 .TONIGHT...W winds 5 to 10 kt. Seas around 2 ft. Wave Detail: SE 2 ft at 8 seconds and W 1 foot at 2 seconds. .SUN...W winds 5 to 10 kt, becoming S in the afternoon. Seas around 2 ft. Wave Detail: SE 2 ft at 9 seconds and W 1 foot at 2 seconds. .SUN NIGHT...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 1 foot or less. Wave Detail: W 1 foot at 2 seconds and SE 1 foot at 9 seconds. .MON NIGHT...W winds 5 to 10 kt. Seas 1 foot or less, then around 2 ft after midnight. Wave Detail: W 1 foot at 2 seconds and SE 1 foot at 10 seconds, becoming W 1 foot at 2 seconds and SE 1 foot at 9 seconds. .TUE AND TUE NIGHT...NW winds 5 to 10 kt. Seas around 2 ft. Wave Detail: NW 1 foot at 2 seconds and SE 1 foot at 10 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. $$ ANZ231-111200- Cape Cod Bay- 703 PM EDT Sat Aug 10 2024 .TONIGHT...W winds 5 to 10 kt. Seas around 2 ft. Wave Detail: SE 2 ft at 8 seconds and SW 1 foot at 2 seconds. .SUN...W winds around 5 kt, becoming SW in the afternoon. Seas around 2 ft. Wave Detail: SE 2 ft at 8 seconds and NW 1 foot at 3 seconds. .SUN NIGHT...SW winds 5 to 10 kt. Seas around 2 ft. Wave Detail: SE 2 ft at 8 seconds and SW 1 foot at 2 seconds. .MON...W winds 5 to 10 kt. Seas 1 foot or less. Wave Detail: W 1 foot at 2 seconds and SE 1 foot at 8 seconds. .MON NIGHT THROUGH TUE NIGHT...W winds 5 to 10 kt. Seas 1 foot or less. Wave Detail: W 1 foot at 2 seconds and SE 1 foot at 8 seconds. .WED THROUGH THU NIGHT...SW winds around 5 kt. Seas 1 foot or less. Wave Detail: NW 1 foot at 3 seconds and E 1 foot at 6 seconds. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ254-111200- Coastal waters from Provincetown MA to Chatham MA to Nantucket MA out 20 nm- 703 PM EDT Sat Aug 10 2024 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH SUNDAY MORNING... .TONIGHT...SW winds 10 to 15 kt, becoming W 5 to 10 kt after midnight. Seas 4 to 6 ft. Wave Detail: S 5 ft at 8 seconds and W 1 foot at 3 seconds. Patchy fog this evening with vsby 1 to 3 NM. .SUN...NW winds 5 to 10 kt, becoming SW in the afternoon. Seas 2 to 4 ft. Wave Detail: S 4 ft at 8 seconds. .SUN NIGHT...SW winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: S 3 ft at 8 seconds and W 1 foot at 3 seconds. .MON...W 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 NIGHT THROUGH TUE NIGHT...W winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: S 3 ft at 8 seconds and W 2 ft at 3 seconds. .WED THROUGH THU NIGHT...S 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. $$ ANZ255-111200- Coastal Waters extending out to 25 nm South of Marthas Vineyard and Nantucket- 703 PM EDT Sat Aug 10 2024 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH SUNDAY MORNING... .TONIGHT...SW winds around 10 kt, becoming W after midnight. Seas 4 to 6 ft. Wave Detail: S 6 ft at 8 seconds and SW 1 foot at 3 seconds. .SUN...NW winds around 5 kt, becoming SW in the afternoon. Seas 3 to 5 ft. Wave Detail: S 4 ft at 8 seconds. .SUN NIGHT...SW winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: SE 3 ft at 8 seconds and SW 1 foot at 2 seconds. .MON...W winds 5 to 10 kt, increasing to 10 to 15 kt with gusts up to 20 kt in the afternoon. Seas 2 to 3 ft. Wave Detail: SE 3 ft at 8 seconds and W 2 ft at 4 seconds. .MON NIGHT THROUGH TUE NIGHT...W winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Wave Detail: W 2 ft at 4 seconds and S 2 ft at 7 seconds. .WED THROUGH THU NIGHT...S winds 5 to 10 kt. Seas around 2 ft. Wave Detail: SE 2 ft at 8 seconds and W 1 foot at 4 seconds. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ256-111200- Coastal Waters from Montauk NY to Marthas Vineyard extending out to 20 nm South of Block Island- 703 PM EDT Sat Aug 10 2024 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH SUNDAY MORNING... .TONIGHT...W winds around 10 kt, becoming NW after midnight. Seas 4 to 6 ft. Wave Detail: S 6 ft at 8 seconds. .SUN...N winds 5 to 10 kt, becoming SW in the afternoon. Seas 3 to 4 ft. Wave Detail: S 4 ft at 8 seconds. .SUN NIGHT...W winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: S 3 ft 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 2 to 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 S 2 ft at 7 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...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. $$ ANZ232-111200- Nantucket Sound- 703 PM EDT Sat Aug 10 2024 .TONIGHT...SW winds 10 to 15 kt, becoming NW 5 to 10 kt after midnight. Seas 2 to 4 ft. Wave Detail: SW 2 ft at 3 seconds and S 2 ft at 8 seconds. .SUN...NW winds around 5 kt, becoming SW in the afternoon. Seas 2 to 3 ft. Wave Detail: S 2 ft at 8 seconds and W 1 foot at 3 seconds. .SUN NIGHT...SW winds 5 to 10 kt. Seas around 2 ft. Wave Detail: SW 1 foot at 3 seconds and S 1 foot at 8 seconds. .MON...W winds 5 to 10 kt, increasing to 10 to 15 kt with gusts up to 20 kt in the afternoon. Seas around 2 ft. Wave Detail: SW 2 ft at 3 seconds and S 1 foot at 8 seconds. .MON NIGHT THROUGH TUE NIGHT...W winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft. Wave Detail: W 2 ft at 4 seconds and SE 1 foot at 8 seconds. .WED THROUGH THU NIGHT...SW winds 5 to 10 kt. Seas 1 foot or less. Wave Detail: NW 1 foot at 3 seconds and SE 1 foot at 8 seconds. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ233-111200- Vineyard Sound- 703 PM EDT Sat Aug 10 2024 .TONIGHT...SW winds 5 to 10 kt, becoming NW after midnight. Seas 2 to 3 ft. Wave Detail: S 3 ft at 8 seconds and SW 1 foot at 3 seconds. .SUN...NW winds around 5 kt, becoming SW in the afternoon. Seas around 2 ft. Wave Detail: S 2 ft at 7 seconds. .SUN NIGHT...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. Seas around 2 ft. Wave Detail: W 2 ft at 4 seconds and S 2 ft at 7 seconds. .TUE AND TUE NIGHT...NW winds 5 to 10 kt. Seas around 2 ft. Wave Detail: S 2 ft at 8 seconds and W 1 foot at 4 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. $$ ANZ234-111200- Buzzards Bay- 703 PM EDT Sat Aug 10 2024 .TONIGHT...SW winds 5 to 10 kt, becoming NW after midnight. Seas 2 to 3 ft. Wave Detail: SW 3 ft at 8 seconds and SW 1 foot at 3 seconds. .SUN...NW winds around 5 kt, becoming SW in the afternoon. Seas around 2 ft. Wave Detail: S 2 ft at 7 seconds and W 1 foot at 3 seconds. .SUN NIGHT...SW winds 5 to 10 kt. Seas around 2 ft. Wave Detail: S 2 ft at 7 seconds and SW 1 foot at 3 seconds. .MON...W winds 5 to 10 kt, becoming SW 10 to 15 kt with gusts up to 20 kt in the afternoon. Seas 1 foot or less, then around 2 ft in the afternoon. Wave Detail: W 1 foot at 3 seconds and S 1 foot at 7 seconds, becoming SW 2 ft at 3 seconds and S 1 foot at 7 seconds. .MON NIGHT...NW winds 10 to 15 kt. Seas around 2 ft in the evening, then 1 foot or less. Wave Detail: W 2 ft at 4 seconds and S 1 foot at 7 seconds, becoming NW 1 foot at 4 seconds and S 1 foot at 8 seconds. .TUE AND TUE NIGHT...NW winds 5 to 10 kt. Seas 1 foot or less. Wave Detail: NW 1 foot at 4 seconds and S 1 foot at 8 seconds. .WED THROUGH THU NIGHT...SW winds 5 to 10 kt. Seas 1 foot or less. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ235-111200- Rhode Island Sound- 703 PM EDT Sat Aug 10 2024 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL MIDNIGHT EDT TONIGHT... .TONIGHT...W winds 5 to 10 kt, becoming NW after midnight. Seas 3 to 5 ft. Wave Detail: S 5 ft at 8 seconds. .SUN...NW winds around 5 kt, becoming SW in the afternoon. Seas 2 to 3 ft. Wave Detail: S 3 ft at 8 seconds and SW 1 foot at 2 seconds. .SUN NIGHT...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 8 seconds and SW 2 ft at 4 seconds. .MON NIGHT...NW winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: S 3 ft at 7 seconds and W 2 ft at 4 seconds. .TUE AND TUE NIGHT...NW winds 5 to 10 kt. Seas around 2 ft. Wave Detail: W 2 ft at 4 seconds and S 2 ft at 8 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. $$ ANZ237-111200- Block Island Sound- 703 PM EDT Sat Aug 10 2024 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL MIDNIGHT EDT TONIGHT... .TONIGHT...W winds 5 to 10 kt, becoming NW after midnight. Seas 2 to 4 ft. Wave Detail: S 4 ft at 8 seconds. .SUN...NW winds around 5 kt, becoming SW in the afternoon. Seas 2 to 3 ft. Wave Detail: S 3 ft at 8 seconds. .SUN NIGHT...W winds 5 to 10 kt. Seas around 2 ft. Wave Detail: S 2 ft at 8 seconds and SW 1 foot at 2 seconds. .MON...W winds 5 to 10 kt, increasing to 10 to 15 kt in the afternoon. Seas around 2 ft. Wave Detail: W 2 ft at 3 seconds and SE 2 ft at 8 seconds. .MON NIGHT...NW winds around 10 kt. Seas around 2 ft. Wave Detail: W 2 ft at 3 seconds and S 2 ft at 7 seconds. .TUE AND TUE NIGHT...NW winds 5 to 10 kt. Seas around 2 ft. Wave Detail: S 2 ft at 8 seconds and W 1 foot at 3 seconds. .WED THROUGH THU NIGHT...SW winds around 5 kt. Seas around 2 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ230-111200- Boston Harbor- 703 PM EDT Sat Aug 10 2024 .TONIGHT...W winds 5 to 10 kt. Waves 1 foot or less. .SUN...SW winds 5 to 10 kt. Waves 1 foot or less. .SUN NIGHT...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 THROUGH TUE NIGHT...NW winds 5 to 10 kt. Waves 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. $$ ANZ236-111200- Narragansett Bay- 703 PM EDT Sat Aug 10 2024 .TONIGHT...W winds 5 to 10 kt, becoming NW after midnight. Waves 2 to 3 ft. .SUN...NW winds around 5 kt, becoming SW in the afternoon. Waves around 2 ft. .SUN NIGHT...SW winds 5 to 10 kt. Waves around 2 ft. .MON...W winds 5 to 10 kt, increasing to 10 to 15 kt in the afternoon. Waves around 2 ft. .MON NIGHT AND TUE...W winds 5 to 10 kt. Waves around 2 ft. .TUE NIGHT...W winds 5 to 10 kt, becoming NW after midnight. Waves around 2 ft. .WED THROUGH THU NIGHT...SW winds around 5 kt. Waves 1 foot or less. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ 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