FZUS51 KBOX 301704 CWFBOX Coastal Waters Forecast for Massachusetts and Rhode Island National Weather Service Boston/Norton MA 104 PM EDT Tue Apr 30 2024 Coastal waters from the Merrimack River MA to Watch Hill RI out to 25 NM ANZ200-010600- 104 PM EDT Tue Apr 30 2024 .Synopsis for Massachusetts and Rhode Island coastal waters... A few widely isolated showers and thunder this morning and drier this afternoon. A decaying low pressure system brings light rain to the waters overnight and into Wednesday. Another chance for light rain on Thursday, primarily for the northern waters, then drier on Friday. Looking head, unsettled conditions persist into the upcoming weekend. $$ ANZ250-010600- Coastal waters east of Ipswich Bay and the Stellwagen Bank National Marine Sanctuary- 104 PM EDT Tue Apr 30 2024 .THIS AFTERNOON...E winds around 10 kt. Seas around 3 ft. Wave Detail: NE 2 ft at 4 seconds and E 2 ft at 10 seconds. .TONIGHT...E winds around 10 kt with gusts up to 20 kt. Seas 2 to 3 ft. Wave Detail: SE 2 ft at 5 seconds and E 2 ft at 10 seconds. A chance of showers in the evening, then showers likely after midnight. Patchy fog after midnight with vsby 1 to 3 NM. .WED...NE winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: NE 2 ft at 5 seconds and E 2 ft at 10 seconds. Patchy fog in the morning. A chance of showers in the morning. .WED NIGHT...E winds around 5 kt, becoming S around 5 kt after midnight. Seas around 2 ft. Wave Detail: SE 2 ft at 5 seconds and E 1 ft at 12 seconds. .THU...S winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: SE 2 ft at 5 seconds and E 1 ft at 11 seconds. A chance of showers in the afternoon. .THU NIGHT...SE winds around 10 kt, becoming N after midnight. Seas 2 to 3 ft. Wave Detail: SE 2 ft at 4 seconds and E 1 ft at 10 seconds. A chance of showers in the evening. .FRI THROUGH SAT NIGHT...SE winds around 10 kt. Seas 2 to 3 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ251-010600- Massachusetts Bay and Ipswich Bay- 104 PM EDT Tue Apr 30 2024 .THIS AFTERNOON...E winds around 10 kt. Seas 2 to 3 ft. Wave Detail: E 2 ft at 4 seconds and E 2 ft at 10 seconds. .TONIGHT...E winds around 10 kt. Seas 2 to 3 ft. Wave Detail: SE 2 ft at 4 seconds and E 2 ft at 10 seconds. A chance of showers in the evening, then showers likely after midnight. Patchy fog after midnight with vsby 1 to 3 NM. .WED...NE winds 5 to 10 kt. Seas around 2 ft. Wave Detail: SE 2 ft at 5 seconds and E 1 ft at 10 seconds. Patchy fog in the morning. A chance of showers in the morning with vsby 1 to 3 NM. .WED NIGHT...E winds around 5 kt, becoming S after midnight. Seas around 2 ft. Wave Detail: E 2 ft at 5 seconds and S 1 ft at 5 seconds. .THU...S winds 5 to 10 kt. Seas 1 foot or less, then around 2 ft in the afternoon. Wave Detail: SE 1 ft at 5 seconds and E 1 ft at 11 seconds, becoming SE 2 ft at 4 seconds and E 1 ft at 11 seconds. A chance of showers in the afternoon. .THU NIGHT...SE winds around 10 kt, becoming N after midnight. Seas around 2 ft. Wave Detail: SE 2 ft at 4 seconds and E 1 ft at 10 seconds. A chance of showers in the evening. .FRI THROUGH SAT NIGHT...SE 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. $$ ANZ231-010600- Cape Cod Bay- 104 PM EDT Tue Apr 30 2024 .THIS AFTERNOON...E winds around 10 kt. Seas around 2 ft. Wave Detail: E 2 ft at 10 seconds and SE 1 ft at 4 seconds. .TONIGHT...E winds around 10 kt with gusts up to 20 kt. Seas around 2 ft. Wave Detail: E 2 ft at 9 seconds and SE 1 ft at 4 seconds. A chance of showers. Patchy fog after midnight. .WED...NE winds around 10 kt. Seas around 2 ft in the morning, then 1 foot or less. Wave Detail: E 2 ft at 10 seconds and NE 1 ft at 3 seconds, becoming NE 1 ft at 3 seconds and S 1 ft at 4 seconds. Patchy fog in the morning. A chance of showers in the morning. .WED NIGHT...NE winds around 5 kt, becoming SE around 5 kt after midnight. Seas 1 foot or less. Wave Detail: E 1 ft at 3 seconds and S 1 ft at 4 seconds. .THU...S winds 5 to 10 kt. Seas 1 foot or less. Wave Detail: S 1 ft at 4 seconds and E 1 ft at 4 seconds. A chance of showers in the afternoon. .THU NIGHT...SW winds around 10 kt, becoming N after midnight. Seas 1 foot or less. Wave Detail: SW 1 ft at 2 seconds and E 1 ft at 4 seconds. A chance of showers in the evening. .FRI THROUGH SAT NIGHT...E winds 5 to 10 kt. Seas around 2 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ254-010600- Coastal waters from Provincetown MA to Chatham MA to Nantucket MA out 20 nm- 104 PM EDT Tue Apr 30 2024 .THIS AFTERNOON...E winds 10 to 15 kt with gusts up to 20 kt. Seas around 3 ft. Wave Detail: E 3 ft at 10 seconds and NE 2 ft at 4 seconds. .TONIGHT...E winds 10 to 15 kt with gusts up to 20 kt. Seas around 3 ft. Wave Detail: E 3 ft at 9 seconds and E 2 ft at 4 seconds. Patchy fog after midnight. A chance of showers after midnight with vsby 1 NM or less. .WED...NE winds 10 to 15 kt. Gusts up to 20 kt in the morning. Seas 2 to 3 ft. Wave Detail: NE 3 ft at 5 seconds and E 3 ft at 10 seconds. Patchy fog in the morning. A chance of showers in the morning with vsby 1 NM or less. .WED NIGHT...NE winds 5 to 10 kt, becoming E after midnight. Seas 2 to 3 ft. Wave Detail: E 2 ft at 5 seconds and S 2 ft at 7 seconds. Patchy fog after midnight with vsby 1 to 3 NM. .THU...S winds 5 to 10 kt. Seas around 2 ft. Wave Detail: E 2 ft at 5 seconds and S 2 ft at 6 seconds. Patchy fog in the morning. A chance of showers in the afternoon. Vsby 1 NM or less in the morning. .THU NIGHT...SW winds around 10 kt, becoming N after midnight. Seas 2 to 3 ft. Wave Detail: S 2 ft at 6 seconds and E 1 ft at 5 seconds. A chance of showers in the evening. .FRI THROUGH SAT NIGHT...E 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. $$ ANZ255-010600- Coastal Waters extending out to 25 nm South of Marthas Vineyard and Nantucket- 104 PM EDT Tue Apr 30 2024 .THIS AFTERNOON...E winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Wave Detail: E 2 ft at 4 seconds and E 2 ft at 10 seconds. .TONIGHT...E winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Wave Detail: E 3 ft at 4 seconds and S 2 ft at 5 seconds. Patchy fog. Vsby 1 NM or less. .WED...NE winds 10 to 15 kt. Gusts up to 20 kt in the morning. Seas 2 to 3 ft. Wave Detail: NE 3 ft at 4 seconds and E 3 ft at 9 seconds. Patchy fog in the morning with vsby 1 NM or less. .WED NIGHT...E winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: E 3 ft at 5 seconds and SW 3 ft at 7 seconds. .THU...S winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: E 2 ft at 5 seconds and S 2 ft at 6 seconds. Patchy fog in the morning with vsby 1 to 3 NM. .THU NIGHT...SW winds around 10 kt, becoming N with gusts up to 20 kt after midnight. Seas 2 to 3 ft. Wave Detail: S 2 ft at 6 seconds and E 1 ft at 5 seconds. .FRI THROUGH SAT NIGHT...E winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ256-010600- Coastal Waters from Montauk NY to Marthas Vineyard extending out to 20 nm South of Block Island- 104 PM EDT Tue Apr 30 2024 .THIS AFTERNOON...E winds around 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Wave Detail: E 3 ft at 4 seconds and E 2 ft at 10 seconds. .TONIGHT...E winds 10 to 15 kt with gusts up to 20 kt, becoming NE 5 to 10 kt after midnight. Seas 2 to 3 ft. Wave Detail: SE 3 ft at 5 seconds and E 2 ft at 10 seconds. Patchy fog. Vsby 1 NM or less. .WED...NE winds 10 to 15 kt. Gusts up to 20 kt in the morning. Seas 2 to 3 ft. Wave Detail: NE 3 ft at 4 seconds and S 3 ft at 6 seconds. Patchy fog in the morning with vsby 1 NM or less. .WED NIGHT...E winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: S 3 ft at 7 seconds and E 2 ft at 5 seconds. .THU...S winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: E 2 ft at 6 seconds and S 2 ft at 6 seconds. .THU NIGHT...SW winds around 10 kt, becoming N with gusts up to 20 kt after midnight. Seas 2 to 3 ft. Wave Detail: S 2 ft at 6 seconds and E 1 ft at 5 seconds. .FRI THROUGH SAT NIGHT...E winds 10 to 15 kt with gusts up to 20 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. $$ ANZ232-010600- Nantucket Sound- 104 PM EDT Tue Apr 30 2024 .THIS AFTERNOON...E winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft. Wave Detail: E 2 ft at 3 seconds and S 1 ft at 6 seconds. .TONIGHT...E winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft. Wave Detail: SE 2 ft at 4 seconds and E 1 ft at 10 seconds. Patchy fog after midnight. A chance of showers after midnight with vsby 1 to 3 NM. .WED...NE winds 10 to 15 kt. Gusts up to 20 kt in the morning. Seas around 2 ft. Wave Detail: E 2 ft at 4 seconds and S 1 ft at 6 seconds. Patchy fog in the morning. A chance of showers in the morning with vsby 1 NM or less. .WED NIGHT...E winds 5 to 10 kt. Seas around 2 ft in the evening, then 1 foot or less. Wave Detail: E 2 ft at 5 seconds and SW 1 ft at 6 seconds, becoming E 1 ft at 5 seconds and S 1 ft at 6 seconds. .THU...S winds 5 to 10 kt. Seas 1 foot or less. Wave Detail: E 1 ft at 5 seconds and S 1 ft at 6 seconds. A chance of showers in the afternoon. .THU NIGHT...SW winds around 10 kt, becoming N after midnight. Seas 1 foot or less. Wave Detail: SW 1 ft at 3 seconds and E 1 ft at 5 seconds. .FRI THROUGH SAT NIGHT...E winds 10 to 15 kt. Seas around 2 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ233-010600- Vineyard Sound- 104 PM EDT Tue Apr 30 2024 .THIS AFTERNOON...E winds 10 to 15 kt with gusts up to 20 kt. Seas 1 foot or less. Wave Detail: E 1 ft at 3 seconds and S 1 ft at 5 seconds. .TONIGHT...E winds 10 to 15 kt. Gusts up to 20 kt in the evening. Seas around 2 ft in the evening, then 1 foot or less. Wave Detail: E 1 ft at 3 seconds and S 1 ft at 5 seconds. Patchy fog after midnight. A chance of showers after midnight with vsby 1 NM or less. .WED...NE winds around 10 kt. Seas 1 foot or less. Wave Detail: NE 1 ft at 3 seconds and SW 1 ft at 6 seconds. Patchy fog in the morning. A chance of showers in the morning with vsby 1 to 3 NM. .WED NIGHT...NE winds 5 to 10 kt, becoming SE after midnight. Seas around 2 ft in the evening, then 1 foot or less. Wave Detail: SW 2 ft at 6 seconds and NE 1 ft at 3 seconds, becoming E 1 ft at 4 seconds and SW 1 ft at 6 seconds. .THU...S winds 5 to 10 kt. Seas 1 foot or less. Wave Detail: S 1 ft at 4 seconds and E 1 ft at 5 seconds. .THU NIGHT...SW winds around 10 kt, becoming N with gusts up to 20 kt after midnight. Seas 1 foot or less. Wave Detail: E 1 ft at 5 seconds and SW 1 ft at 5 seconds. .FRI THROUGH SAT NIGHT...E winds 10 to 15 kt with gusts up to 20 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. $$ ANZ234-010600- Buzzards Bay- 104 PM EDT Tue Apr 30 2024 .THIS AFTERNOON...E winds 10 to 15 kt with gusts up to 20 kt. Seas 1 foot or less. Wave Detail: E 1 ft at 3 seconds and S 1 ft at 5 seconds. .TONIGHT...E winds 10 to 15 kt. Gusts up to 20 kt in the evening. Seas 1 foot or less. Wave Detail: SE 1 ft at 4 seconds and E 1 ft at 10 seconds. Patchy fog after midnight. A chance of showers after midnight with vsby 1 to 3 NM. .WED...NE winds around 10 kt. Seas 1 foot or less. Wave Detail: NE 1 ft at 3 seconds and S 1 ft at 6 seconds. Patchy fog in the morning. A chance of showers in the morning with vsby 1 to 3 NM. .WED NIGHT...NE winds 5 to 10 kt, becoming SE after midnight. Seas 1 foot or less. Wave Detail: NE 1 ft at 2 seconds and SW 1 ft at 6 seconds. .THU...S winds 5 to 10 kt, increasing to 10 to 15 kt in the afternoon. Seas 1 foot or less. Wave Detail: SW 1 ft at 3 seconds and E 1 ft at 5 seconds. .THU NIGHT...SW winds around 10 kt, becoming N after midnight. Seas 1 foot or less. Wave Detail: SW 1 ft at 4 seconds and E 1 ft at 5 seconds. .FRI THROUGH SAT NIGHT...E winds 10 to 15 kt. Seas 1 foot or less. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ235-010600- Rhode Island Sound- 104 PM EDT Tue Apr 30 2024 .THIS AFTERNOON...E winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft. Wave Detail: SE 2 ft at 5 seconds and SE 1 ft at 11 seconds. .TONIGHT...E winds 10 to 15 kt. Gusts up to 20 kt in the evening. Seas around 2 ft. Wave Detail: SE 2 ft at 5 seconds and E 1 ft at 10 seconds. Patchy fog. Vsby 1 NM or less. .WED...NE winds 10 to 15 kt. Seas around 2 ft. Wave Detail: NE 2 ft at 4 seconds and S 2 ft at 6 seconds. Patchy fog in the morning with vsby 1 NM or less. .WED NIGHT...E winds 5 to 10 kt, becoming SE after midnight. Seas around 2 ft. Wave Detail: S 2 ft at 7 seconds and E 1 ft at 4 seconds. .THU...S winds 5 to 10 kt. Seas around 2 ft. Wave Detail: SE 2 ft at 6 seconds and E 1 ft at 12 seconds. .THU NIGHT...SW winds around 10 kt, becoming N with gusts up to 20 kt after midnight. Seas around 2 ft. Wave Detail: S 2 ft at 6 seconds and SE 1 ft at 12 seconds. .FRI THROUGH SAT NIGHT...E winds 10 to 15 kt with gusts up to 20 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. $$ ANZ237-010600- Block Island Sound- 104 PM EDT Tue Apr 30 2024 .THIS AFTERNOON...E winds around 15 kt with gusts up to 20 kt. Seas around 2 ft. Wave Detail: SE 2 ft at 5 seconds and E 1 ft at 11 seconds. .TONIGHT...NE winds 10 to 15 kt. Gusts up to 20 kt in the evening. Seas around 2 ft. Wave Detail: SE 2 ft at 5 seconds and E 1 ft at 10 seconds. Patchy fog. Vsby 1 NM or less. .WED...NE winds around 10 kt, becoming E in the afternoon. Seas around 2 ft. Wave Detail: NE 2 ft at 4 seconds and S 2 ft at 6 seconds. Patchy fog in the morning with vsby 1 to 3 NM. .WED NIGHT...SE winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: SE 2 ft at 6 seconds and E 1 ft at 11 seconds. .THU...S winds 5 to 10 kt. Seas around 2 ft. Wave Detail: SE 2 ft at 6 seconds and E 1 ft at 11 seconds. .THU NIGHT...SW winds around 10 kt, becoming N after midnight. Seas around 2 ft. Wave Detail: SW 2 ft at 6 seconds and E 1 ft at 6 seconds. .FRI THROUGH SAT NIGHT...E winds 5 to 10 kt. Seas around 2 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ230-010600- Boston Harbor- 104 PM EDT Tue Apr 30 2024 .THIS AFTERNOON...E winds around 10 kt. Waves around 2 ft. .TONIGHT...E winds around 10 kt. Waves 1 foot or less. Showers likely. Patchy fog after midnight with vsby 1 to 3 NM. .WED...NE winds 5 to 10 kt. Waves 1 foot or less. Patchy fog in the morning. A chance of showers in the morning with vsby 1 to 3 NM. .WED NIGHT...E winds around 5 kt, becoming S after midnight. Waves 1 foot or less. .THU...S winds 5 to 10 kt, increasing to 10 to 15 kt in the afternoon. Waves 1 foot or less. A chance of showers in the afternoon. .THU NIGHT...W winds around 10 kt, becoming N after midnight. Waves 1 foot or less, then around 2 ft after midnight. A chance of showers in the evening. .FRI THROUGH SAT NIGHT...SE winds 10 to 15 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. $$ ANZ236-010600- Narragansett Bay- 104 PM EDT Tue Apr 30 2024 .THIS AFTERNOON...E winds around 10 kt with gusts up to 20 kt. Waves around 2 ft. .TONIGHT...E winds 10 to 15 kt with gusts up to 20 kt, becoming NE 5 to 10 kt after midnight. Waves around 2 ft. Patchy fog after midnight. A chance of showers after midnight with vsby 1 to 3 NM. .WED...NE winds 5 to 10 kt. Waves around 2 ft. Patchy fog in the morning with vsby 1 to 3 NM. .WED NIGHT...E winds 5 to 10 kt, becoming SE after midnight. Waves around 2 ft. .THU...S winds 5 to 10 kt, increasing to 10 to 15 kt in the afternoon. Waves around 2 ft. .THU NIGHT...SW winds around 10 kt, becoming N after midnight. Waves around 2 ft. .FRI THROUGH SAT NIGHT...E winds 5 to 10 kt. Waves around 2 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ 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