FZUS51 KBOX 160202 CWFBOX Coastal Waters Forecast for Massachusetts and Rhode Island National Weather Service Boston/Norton MA 1001 PM EDT Mon Apr 15 2024 Coastal waters from the Merrimack River MA to Watch Hill RI out to 25 NM ANZ200-161500- 1001 PM EDT Mon Apr 15 2024 .Synopsis for Massachusetts and Rhode Island coastal waters... Dry and seasonably mild conditions continue tomorrow and Wednesday as a surface high builds across the waters. Winds will vary in direction across the waters but generally from the W/SW gusting to 25kt this afternoon and evening; lighter winds on Tuesday. Weak low pressure system could bring light could bring more light rain towards the end of the week. $$ ANZ250-161500- Coastal waters east of Ipswich Bay and the Stellwagen Bank National Marine Sanctuary- 1001 PM EDT Mon Apr 15 2024 .OVERNIGHT...NW winds 5 to 10 kt. Seas 2 to 4 ft. Wave Detail: SE 4 ft at 9 seconds and SW 1 ft at 2 seconds. Scattered showers. .TUE...W winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: SE 3 ft at 9 seconds and W 1 ft at 3 seconds. .TUE NIGHT...W winds 5 to 10 kt, becoming N after midnight. Seas 2 to 3 ft. Wave Detail: SE 3 ft at 9 seconds and W 1 ft at 3 seconds. .WED...N winds 5 to 10 kt, becoming E in the afternoon. Seas 2 to 3 ft. Wave Detail: SE 3 ft at 9 seconds and NW 1 ft at 3 seconds. .WED NIGHT...S winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: SE 2 ft at 8 seconds and SE 1 ft at 3 seconds. .THU AND THU NIGHT...SE winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: E 3 ft at 9 seconds and SE 1 ft at 4 seconds. .FRI...SE winds around 10 kt. Seas 2 to 3 ft. .FRI NIGHT THROUGH SAT NIGHT...W winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. A chance of showers. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ251-161500- Massachusetts Bay and Ipswich Bay- 1001 PM EDT Mon Apr 15 2024 .OVERNIGHT...NW winds around 5 kt. Seas around 2 ft. Wave Detail: E 2 ft at 9 seconds and SW 1 ft at 3 seconds. Scattered showers. .TUE...W winds 5 to 10 kt. Seas around 2 ft. Wave Detail: E 2 ft at 9 seconds and W 1 ft at 2 seconds. .TUE NIGHT...NW winds 5 to 10 kt. Seas around 2 ft. Wave Detail: E 2 ft at 9 seconds and NW 1 ft at 2 seconds. .WED...N winds 5 to 10 kt, becoming E 10 to 15 kt in the afternoon. Seas around 2 ft. Wave Detail: E 2 ft at 9 seconds and N 1 ft at 3 seconds. .WED NIGHT...S winds 10 to 15 kt, becoming SE 5 to 10 kt after midnight. Seas around 2 ft. Wave Detail: SE 2 ft at 3 seconds and E 2 ft at 7 seconds. .THU AND THU NIGHT...SE winds 10 to 15 kt. Seas around 2 ft. Wave Detail: E 2 ft at 6 seconds and SE 1 ft at 3 seconds. .FRI...SE winds 5 to 10 kt. Seas around 2 ft. .FRI NIGHT AND SAT...S winds around 10 kt, becoming W. Seas 2 to 3 ft. A chance of showers. .SAT NIGHT...W 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. $$ ANZ231-161500- Cape Cod Bay- 1001 PM EDT Mon Apr 15 2024 .OVERNIGHT...NW winds around 5 kt. Seas around 2 ft. Wave Detail: SE 2 ft at 9 seconds and SW 1 ft at 2 seconds. Scattered showers this evening. .TUE...NW winds 5 to 10 kt, becoming W in the afternoon. Seas around 2 ft in the morning, then 1 foot or less. Wave Detail: SE 2 ft at 9 seconds and NW 1 ft at 2 seconds, becoming NW 1 ft at 3 seconds and SE 1 ft at 9 seconds. .TUE NIGHT...SW winds around 5 kt, becoming N around 5 kt after midnight. Seas 1 foot or less, then around 2 ft after midnight. Wave Detail: NW 1 ft at 3 seconds and SE 1 ft at 9 seconds, becoming SE 2 ft at 9 seconds and NW 1 ft at 3 seconds. .WED...N winds around 5 kt, becoming E in the afternoon. Seas 1 foot or less. Wave Detail: N 1 ft at 3 seconds and E 1 ft at 8 seconds. .WED NIGHT...SE winds 5 to 10 kt, diminishing to around 5 kt after midnight. Seas 1 foot or less. Wave Detail: SE 1 ft at 3 seconds and E 1 ft at 6 seconds. .THU...E winds 5 to 10 kt. Seas 1 foot or less, then around 2 ft in the afternoon. Wave Detail: E 1 ft at 4 seconds, becoming SE 1 ft at 4 seconds. .THU NIGHT...E winds around 10 kt. Seas around 2 ft. A chance of showers. .FRI...E winds 5 to 10 kt. Seas around 2 ft. .FRI NIGHT THROUGH SAT NIGHT...W winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft. A chance of showers. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ254-161500- Coastal waters from Provincetown MA to Chatham MA to Nantucket MA out 20 nm- 1001 PM EDT Mon Apr 15 2024 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 2 AM EDT TUESDAY... .OVERNIGHT...NW winds 5 to 10 kt. Seas 3 to 4 ft. Wave Detail: SE 4 ft at 9 seconds and SW 1 ft at 5 seconds. Scattered showers. .TUE...W winds 5 to 10 kt. Seas 3 to 4 ft. Wave Detail: S 4 ft at 9 seconds and W 1 ft at 3 seconds. .TUE NIGHT...SW winds 5 to 10 kt, becoming N after midnight. Seas 3 to 4 ft. Wave Detail: SE 4 ft at 9 seconds and W 2 ft at 6 seconds. .WED...NE winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: SE 3 ft at 8 seconds and W 2 ft at 6 seconds. .WED NIGHT THROUGH THU NIGHT...E winds 5 to 10 kt with gusts up to 20 kt. Seas 2 to 4 ft. Wave Detail: E 3 ft at 9 seconds and S 2 ft at 6 seconds. .FRI...E winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 4 ft. Wave Detail: SE 4 ft at 7 seconds. .FRI NIGHT THROUGH SAT NIGHT...W winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 4 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. $$ ANZ255-161500- Coastal Waters extending out to 25 nm South of Marthas Vineyard and Nantucket- 1001 PM EDT Mon Apr 15 2024 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 2 AM EDT TUESDAY... .OVERNIGHT...NW winds 5 to 10 kt. Seas 3 to 5 ft. Wave Detail: S 5 ft at 8 seconds and SE 5 ft at 9 seconds. Isolated showers. .TUE...NW winds 5 to 10 kt, becoming W in the afternoon. Seas 3 to 4 ft. Wave Detail: S 4 ft at 8 seconds. .TUE NIGHT...SW winds 5 to 10 kt, becoming N after midnight. Seas 2 to 4 ft. Wave Detail: S 4 ft at 8 seconds. .WED...NE winds around 10 kt, becoming E in the afternoon. Seas 2 to 4 ft. Wave Detail: S 3 ft at 7 seconds and SE 3 ft at 8 seconds. .WED NIGHT...SE winds 5 to 10 kt. Seas around 2 ft. Wave Detail: S 2 ft at 7 seconds and SE 2 ft at 8 seconds. .THU AND THU NIGHT...E winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. Wave Detail: SE 4 ft at 6 seconds. A chance of showers. .FRI...E winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 4 ft. .FRI NIGHT THROUGH SAT NIGHT...W winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 4 ft. A chance of showers. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ256-161500- Coastal Waters from Montauk NY to Marthas Vineyard extending out to 20 nm South of Block Island- 1001 PM EDT Mon Apr 15 2024 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 2 AM EDT TUESDAY... .OVERNIGHT...NW winds 5 to 10 kt. Seas 3 to 5 ft. Wave Detail: S 5 ft at 8 seconds and SW 1 ft at 5 seconds. Scattered showers. .TUE...NW winds 5 to 10 kt, becoming W in the afternoon. Seas 3 to 4 ft. Wave Detail: S 4 ft at 8 seconds. .TUE NIGHT...W winds around 10 kt, becoming NW after midnight. Seas 3 to 4 ft. Wave Detail: S 4 ft at 8 seconds. .WED...NE winds 5 to 10 kt, becoming SE in the afternoon. Seas 2 to 3 ft. Wave Detail: S 3 ft at 7 seconds and SE 3 ft at 8 seconds. .WED NIGHT...SE winds around 10 kt. Seas 2 to 3 ft. Wave Detail: SE 3 ft at 8 seconds and S 2 ft at 7 seconds. A chance of showers. .THU AND THU NIGHT...E winds 10 to 15 kt with gusts up to 25 kt. Seas 3 to 5 ft. Wave Detail: SE 5 ft at 7 seconds. A chance of showers. .FRI...E winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 5 ft. .FRI NIGHT THROUGH SAT NIGHT...W winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 4 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. $$ ANZ232-161500- Nantucket Sound- 1001 PM EDT Mon Apr 15 2024 .OVERNIGHT...NW winds around 5 kt. Seas around 2 ft. Wave Detail: SE 2 ft at 9 seconds and SW 1 ft at 6 seconds. Scattered showers. .TUE...NW winds around 5 kt, becoming SW in the afternoon. Seas around 2 ft. Wave Detail: SE 2 ft at 9 seconds and W 1 ft at 4 seconds. .TUE NIGHT...SW winds around 5 kt, becoming N after midnight. Seas around 2 ft. Wave Detail: SW 1 ft at 6 seconds and SE 1 ft at 9 seconds. .WED...N winds 5 to 10 kt, becoming E in the afternoon. Seas around 2 ft in the morning, then 1 foot or less. Wave Detail: SW 1 ft at 6 seconds and NE 1 ft at 8 seconds, becoming NE 1 ft at 5 seconds and S 1 ft at 6 seconds. .WED NIGHT AND THU...E winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft. Wave Detail: SE 2 ft at 6 seconds. .THU NIGHT...E winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft. Wave Detail: SE 2 ft at 5 seconds. A chance of showers. .FRI...E winds around 10 kt with gusts up to 20 kt. Seas around 2 ft. .FRI NIGHT THROUGH SAT NIGHT...W winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft. A chance of showers. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ233-161500- Vineyard Sound- 1001 PM EDT Mon Apr 15 2024 .OVERNIGHT...NW winds around 5 kt. Seas around 2 ft. Wave Detail: SW 2 ft at 7 seconds and S 2 ft at 8 seconds. Scattered showers this evening. .TUE...W winds 5 to 10 kt. Seas around 2 ft. Wave Detail: S 2 ft at 7 seconds. .TUE NIGHT...W winds 5 to 10 kt, becoming N after midnight. Seas around 2 ft. Wave Detail: S 2 ft at 7 seconds. .WED...NE winds 5 to 10 kt, becoming SE in the afternoon. Seas around 2 ft in the morning, then 1 foot or less. Wave Detail: SW 2 ft at 7 seconds and E 2 ft at 8 seconds, becoming SE 1 ft at 6 seconds. .WED NIGHT...SE winds 5 to 10 kt. Seas 1 foot or less. Wave Detail: SE 1 ft at 4 seconds and SE 1 ft at 7 seconds. .THU AND THU NIGHT...E winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft. Wave Detail: SE 2 ft at 5 seconds. A chance of showers. .FRI THROUGH SAT NIGHT...W winds 10 to 15 kt with gusts up to 20 kt. Seas 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. $$ ANZ234-161500- Buzzards Bay- 1001 PM EDT Mon Apr 15 2024 .OVERNIGHT...NW winds around 5 kt. Seas around 2 ft. Wave Detail: SW 2 ft at 7 seconds and S 2 ft at 8 seconds. Scattered showers this evening. .TUE...W winds 5 to 10 kt. Seas around 2 ft. Wave Detail: S 2 ft at 9 seconds and SW 1 ft at 7 seconds. .TUE NIGHT...W winds 5 to 10 kt, becoming N after midnight. Seas around 2 ft. Wave Detail: S 2 ft at 7 seconds. .WED...NE winds 5 to 10 kt, becoming SE in the afternoon. Seas 1 foot or less. Wave Detail: SW 1 ft at 7 seconds and E 1 ft at 7 seconds. .WED NIGHT...SE winds 5 to 10 kt. Seas 1 foot or less. Wave Detail: SE 1 ft at 4 seconds and SE 1 ft at 7 seconds. .THU AND THU NIGHT...E winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft. Wave Detail: SE 1 ft at 5 seconds. A chance of showers. .FRI...E winds around 10 kt. Seas around 2 ft. .FRI NIGHT THROUGH SAT NIGHT...W winds around 10 kt with gusts up to 20 kt. Seas around 2 ft. A chance of showers. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ235-161500- Rhode Island Sound- 1001 PM EDT Mon Apr 15 2024 .OVERNIGHT...NW winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: S 3 ft at 8 seconds. Scattered showers. .TUE...NW winds 5 to 10 kt, becoming SW in the afternoon. Seas 2 to 3 ft. Wave Detail: S 3 ft at 7 seconds. .TUE NIGHT...W winds 5 to 10 kt, becoming N after midnight. Seas 2 to 3 ft. Wave Detail: S 3 ft at 8 seconds. .WED...NE winds 5 to 10 kt, becoming SE in the afternoon. Seas 2 to 3 ft. Wave Detail: SE 3 ft at 8 seconds and S 2 ft at 7 seconds. .WED NIGHT THROUGH THU NIGHT...E winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. Wave Detail: SE 4 ft at 6 seconds. A chance of showers. .FRI THROUGH SAT NIGHT...W winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. Wave Detail: S 4 ft at 6 seconds. 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. $$ ANZ237-161500- Block Island Sound- 1001 PM EDT Mon Apr 15 2024 .OVERNIGHT...NW winds around 5 kt. Seas 2 to 3 ft. Wave Detail: S 3 ft at 7 seconds. Isolated showers. .TUE...W winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: S 3 ft at 7 seconds. .TUE NIGHT...W winds 5 to 10 kt, becoming N after midnight. Seas 2 to 3 ft. Wave Detail: S 3 ft at 8 seconds and SW 2 ft at 8 seconds. .WED...NE winds 5 to 10 kt, becoming SE in the afternoon. Seas around 2 ft. Wave Detail: S 2 ft at 7 seconds and SE 2 ft at 8 seconds. .WED NIGHT...SE winds 5 to 10 kt. Seas around 2 ft. Wave Detail: S 2 ft at 7 seconds and SE 2 ft at 8 seconds. A chance of showers. .THU AND THU NIGHT...E winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 4 ft. Wave Detail: SE 4 ft at 6 seconds. A chance of showers. .FRI...E winds around 10 kt. Seas 2 to 4 ft. .FRI NIGHT THROUGH SAT NIGHT...NW winds around 10 kt with gusts up to 20 kt. Seas 2 to 3 ft. A chance of showers. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ230-161500- Boston Harbor- 1001 PM EDT Mon Apr 15 2024 .OVERNIGHT...W winds around 5 kt. Waves 1 foot or less. .TUE...NW winds 5 to 10 kt. Waves 1 foot or less. .TUE NIGHT...N winds around 5 kt. Waves around 2 ft. .WED...N winds 5 to 10 kt, becoming E 10 to 15 kt in the afternoon. Waves around 2 ft. .WED NIGHT...SE winds 10 to 15 kt, diminishing to 5 to 10 kt after midnight. Waves around 2 ft in the evening, then 1 foot or less. .THU...E winds 10 to 15 kt. Gusts up to 20 kt in the afternoon. Waves around 2 ft. .THU NIGHT...E winds 10 to 15 kt, becoming SE around 5 kt after midnight. Waves around 2 ft in the evening, then 1 foot or less. A chance of showers. .FRI...SE winds 5 to 10 kt. Waves around 2 ft. .FRI NIGHT THROUGH SAT NIGHT...W winds around 10 kt with gusts up to 20 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. $$ ANZ236-161500- Narragansett Bay- 1001 PM EDT Mon Apr 15 2024 .OVERNIGHT...NW winds around 5 kt. Waves 2 to 3 ft. Scattered showers. .TUE...NW winds 5 to 10 kt. Waves 2 to 3 ft. .TUE NIGHT...NW winds around 5 kt, becoming N after midnight. Waves around 2 ft. .WED...N winds 5 to 10 kt, becoming SE 10 to 15 kt in the afternoon. Waves around 2 ft. .WED NIGHT THROUGH THU NIGHT...NE winds 10 to 15 kt with gusts up to 20 kt. Waves 2 to 3 ft. A chance of showers. .FRI...E winds 5 to 10 kt. Waves 2 to 3 ft. .FRI NIGHT THROUGH SAT NIGHT...W winds around 10 kt with gusts up to 20 kt. Waves 2 to 3 ft. A chance of showers. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ 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