Coastal Waters Forecast
Issued by NWS Boston, MA
Issued by NWS Boston, MA
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064 FZUS51 KBOX 291104 CWFBOX Coastal Waters Forecast for Massachusetts and Rhode Island National Weather Service Boston/Norton MA 703 AM EDT Mon Apr 29 2024 Coastal waters from the Merrimack River MA to Watch Hill RI out to 25 NM ANZ200-300000- 703 AM EDT Mon Apr 29 2024 .Synopsis for Massachusetts and Rhode Island coastal waters... A cold front will move into the waters today, then stall to the west tonight and Tue. Low pres tracks south of New Eng Tue night into Wed, then high pres will follow for Thu and Fri. $$ ANZ250-300000- Coastal waters east of Ipswich Bay and the Stellwagen Bank National Marine Sanctuary- 703 AM EDT Mon Apr 29 2024 .TODAY...N winds 10 to 15 kt with gusts up to 20 kt, becoming NE 5 to 10 kt this afternoon. Seas 2 to 3 ft. Wave Detail: E 3 ft at 9 seconds and NW 2 ft at 3 seconds. Patchy fog this morning with vsby 1 to 3 NM. .TONIGHT...SW winds around 5 kt, becoming NE after midnight. Seas 2 to 3 ft. Wave Detail: E 3 ft at 9 seconds and N 1 ft at 3 seconds. .TUE...E winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: NE 3 ft at 8 seconds. .TUE NIGHT...SE winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: NE 2 ft at 8 seconds and SE 1 ft at 3 seconds. A chance of showers. Vsby 1 to 3 NM after midnight. .WED...NE winds around 10 kt. Seas 2 to 3 ft. Wave Detail: E 2 ft at 7 seconds and SE 1 ft at 3 seconds. A chance of showers. .WED NIGHT...NE winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: E 2 ft at 6 seconds and S 1 ft at 3 seconds. .THU...SE winds 5 to 10 kt. Seas around 2 ft. .THU NIGHT...SW winds around 10 kt. Seas around 2 ft. A chance of showers. .FRI...NE winds around 10 kt. Seas 2 to 3 ft. .FRI NIGHT...E winds around 10 kt. Seas 2 to 3 ft. A chance of showers. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ251-300000- Massachusetts Bay and Ipswich Bay- 703 AM EDT Mon Apr 29 2024 .TODAY...N winds 5 to 10 kt with gusts up to 20 kt, becoming E this afternoon. Seas around 2 ft. Wave Detail: E 2 ft at 9 seconds and NW 1 ft at 3 seconds. .TONIGHT...S winds 5 to 10 kt, becoming E after midnight. Seas around 2 ft. Wave Detail: E 2 ft at 9 seconds. .TUE...E winds around 10 kt. Seas around 2 ft. Wave Detail: NE 2 ft at 8 seconds and E 1 ft at 3 seconds. .TUE NIGHT...SE winds 5 to 10 kt. Seas around 2 ft. Wave Detail: E 2 ft at 7 seconds and SE 1 ft at 4 seconds. A chance of showers. Vsby 1 to 3 NM after midnight. .WED...NE winds around 10 kt. Seas around 2 ft. Wave Detail: E 2 ft at 9 seconds and SE 1 ft at 3 seconds. A chance of showers. .WED NIGHT...NE winds 5 to 10 kt, becoming N after midnight. Seas around 2 ft. Wave Detail: E 2 ft at 6 seconds and S 1 ft at 4 seconds. .THU THROUGH FRI...NE winds 5 to 10 kt. Seas around 2 ft. .FRI NIGHT...E winds 5 to 10 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. $$ ANZ231-300000- Cape Cod Bay- 703 AM EDT Mon Apr 29 2024 .TODAY...N winds 5 to 10 kt, becoming NE this afternoon. Gusts up to 20 kt. Seas around 2 ft. Wave Detail: E 2 ft at 9 seconds and NW 1 ft at 3 seconds. .TONIGHT...S winds around 5 kt, becoming N after midnight. Seas around 2 ft. Wave Detail: NE 2 ft at 7 seconds and NW 1 ft at 4 seconds. .TUE...E winds 5 to 10 kt. Seas around 2 ft. Wave Detail: NE 2 ft at 5 seconds and SE 1 ft at 4 seconds. .TUE NIGHT...SE winds 5 to 10 kt. Seas around 2 ft. Wave Detail: SE 1 ft at 2 seconds and NE 1 ft at 6 seconds. A chance of showers. .WED...NE winds 5 to 10 kt. Seas around 2 ft. Wave Detail: E 1 ft at 3 seconds and NE 1 ft at 6 seconds. A chance of showers. .WED NIGHT...NE winds 5 to 10 kt. Seas around 2 ft in the evening, then 1 foot or less. Wave Detail: NE 1 ft at 3 seconds and S 1 ft at 3 seconds, becoming NE 1 ft at 3 seconds and S 1 ft at 4 seconds. .THU THROUGH FRI...NE winds 5 to 10 kt with gusts up to 20 kt. Seas 1 foot or less. .FRI NIGHT...E winds around 10 kt. Seas 1 foot or less. A chance of showers. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ254-300000- Coastal waters from Provincetown MA to Chatham MA to Nantucket MA out 20 nm- 703 AM EDT Mon Apr 29 2024 .TODAY...N winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. Wave Detail: E 3 ft at 9 seconds and NW 2 ft at 4 seconds. Patchy fog this morning with vsby 1 to 3 NM. .TONIGHT...W winds around 5 kt, becoming NW around 5 kt after midnight. Seas 3 to 4 ft. Wave Detail: E 4 ft at 11 seconds and SW 2 ft at 5 seconds. .TUE...E winds 5 to 10 kt. Seas 2 to 4 ft. Wave Detail: NE 3 ft at 9 seconds and S 1 ft at 6 seconds. .TUE NIGHT...SE winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: NE 3 ft at 9 seconds and S 1 ft at 6 seconds. A chance of showers. .WED...NE winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: NE 3 ft at 8 seconds and S 2 ft at 5 seconds. A chance of showers. .WED NIGHT...NE winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: E 3 ft at 7 seconds and S 2 ft at 6 seconds. .THU THROUGH FRI NIGHT...NE 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. $$ ANZ255-300000- Coastal Waters extending out to 25 nm South of Marthas Vineyard and Nantucket- 703 AM EDT Mon Apr 29 2024 .TODAY...N winds 10 to 15 kt, becoming NE this afternoon. Gusts up to 20 kt. Seas 2 to 4 ft. Wave Detail: W 3 ft at 4 seconds and E 3 ft at 9 seconds. .TONIGHT...SE winds around 5 kt, becoming W after midnight. Seas 2 to 4 ft. Wave Detail: E 3 ft at 11 seconds and SW 2 ft at 5 seconds. .TUE...E winds 5 to 10 kt, increasing to 10 to 15 kt in the afternoon. Seas 2 to 4 ft. Wave Detail: E 3 ft at 10 seconds and SW 2 ft at 6 seconds. .TUE NIGHT...SE winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: SE 2 ft at 4 seconds and E 2 ft at 9 seconds. A chance of showers after midnight. .WED...NE winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: S 2 ft at 5 seconds and E 2 ft at 8 seconds. A chance of showers. .WED NIGHT...NE winds 10 to 15 kt, diminishing to 5 to 10 kt after midnight. Seas 2 to 4 ft. Wave Detail: SW 2 ft at 6 seconds and NE 2 ft at 6 seconds. .THU THROUGH FRI NIGHT...NE winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ256-300000- Coastal Waters from Montauk NY to Marthas Vineyard extending out to 20 nm South of Block Island- 703 AM EDT Mon Apr 29 2024 .TODAY...NW winds 10 to 15 kt, becoming E 5 to 10 kt this afternoon. Seas 2 to 3 ft. Wave Detail: E 3 ft at 9 seconds and SW 2 ft at 4 seconds. .TONIGHT...S winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: E 3 ft at 12 seconds and S 2 ft at 5 seconds. .TUE...E winds 5 to 10 kt, increasing to 10 to 15 kt in the afternoon. Seas 2 to 3 ft. Wave Detail: E 3 ft at 10 seconds and S 2 ft at 6 seconds. .TUE NIGHT...SE winds 10 to 15 kt, becoming E 5 to 10 kt after midnight. Seas 2 to 3 ft. Wave Detail: SE 3 ft at 6 seconds. A chance of showers after midnight. .WED...NE winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: S 2 ft at 5 seconds and E 2 ft at 7 seconds. A chance of showers. .WED NIGHT...NE winds 5 to 10 kt. Seas 2 to 4 ft. Wave Detail: SW 2 ft at 6 seconds and NE 2 ft at 6 seconds. .THU THROUGH FRI...NE winds 5 to 10 kt with gusts up to 20 kt. Seas 2 to 3 ft. .FRI NIGHT...E 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. $$ ANZ232-300000- Nantucket Sound- 703 AM EDT Mon Apr 29 2024 .TODAY...N winds 10 to 15 kt, becoming NE this afternoon. Gusts up to 20 kt. Seas around 2 ft. Wave Detail: NW 2 ft at 3 seconds and E 2 ft at 9 seconds. .TONIGHT...S winds around 5 kt, becoming NW around 5 kt after midnight. Seas around 2 ft. Wave Detail: E 2 ft at 11 seconds and S 1 ft at 5 seconds. .TUE...E winds 5 to 10 kt. Seas around 2 ft. Wave Detail: E 2 ft at 11 seconds and S 1 ft at 5 seconds. .TUE NIGHT...SE winds 5 to 10 kt. Seas around 2 ft. Wave Detail: SE 1 ft at 3 seconds and E 1 ft at 10 seconds. A chance of showers. .WED...NE winds 5 to 10 kt. Seas around 2 ft. Wave Detail: E 2 ft at 9 seconds and SE 1 ft at 4 seconds. A chance of showers. .WED NIGHT...NE winds 5 to 10 kt. Seas around 2 ft. Wave Detail: NE 2 ft at 5 seconds and S 1 ft at 6 seconds. .THU THROUGH FRI NIGHT...NE winds 5 to 10 kt with gusts up to 20 kt. Seas 1 foot or less. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ233-300000- Vineyard Sound- 703 AM EDT Mon Apr 29 2024 .TODAY...N winds 10 to 15 kt, becoming E this afternoon. Seas around 2 ft. Wave Detail: W 1 ft at 4 seconds and E 1 ft at 9 seconds. .TONIGHT...S winds 5 to 10 kt, becoming W after midnight. Seas around 2 ft. Wave Detail: S 1 ft at 5 seconds and E 1 ft at 6 seconds. .TUE...E winds 5 to 10 kt. Seas around 2 ft. Wave Detail: S 1 ft at 5 seconds and E 1 ft at 11 seconds. .TUE NIGHT...E winds 10 to 15 kt, diminishing to 5 to 10 kt after midnight. Seas around 2 ft in the evening, then 1 foot or less. Wave Detail: SE 1 ft at 4 seconds and E 1 ft at 8 seconds. A chance of showers after midnight. .WED...NE winds 10 to 15 kt. Seas 1 foot or less, then around 2 ft in the afternoon. Wave Detail: S 1 ft at 5 seconds and NE 1 ft at 6 seconds, becoming NE 1 ft at 3 seconds and S 1 ft at 6 seconds. A chance of showers. .WED NIGHT...NE winds 10 to 15 kt, diminishing to 5 to 10 kt after midnight. Seas around 2 ft. Wave Detail: SW 2 ft at 6 seconds and NE 1 ft at 3 seconds. .THU THROUGH FRI...NE winds 5 to 10 kt with gusts up to 20 kt. Seas 1 foot or less. .FRI NIGHT...E winds around 10 kt. Seas 1 foot or less. 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. $$ ANZ234-300000- Buzzards Bay- 703 AM EDT Mon Apr 29 2024 .TODAY...N winds 10 to 15 kt with gusts up to 20 kt, becoming E this afternoon. Seas 1 foot or less. Wave Detail: W 1 ft at 4 seconds and E 1 ft at 9 seconds. .TONIGHT...S winds 5 to 10 kt, becoming W after midnight. Seas 1 foot or less. Wave Detail: E 1 ft at 5 seconds and S 1 ft at 5 seconds. .TUE...E winds 5 to 10 kt, increasing to 10 to 15 kt in the afternoon. Seas 1 foot or less. Wave Detail: S 1 ft at 5 seconds and E 1 ft at 11 seconds. .TUE NIGHT...E winds 5 to 10 kt. Seas around 2 ft in the evening, then 1 foot or less. Wave Detail: SE 1 ft at 3 seconds and E 1 ft at 8 seconds. A chance of showers. .WED...NE winds 5 to 10 kt, increasing to 10 to 15 kt in the afternoon. Seas 1 foot or less. Wave Detail: S 1 ft at 5 seconds and NE 1 ft at 6 seconds. A chance of showers. .WED NIGHT...NE winds 10 to 15 kt, diminishing to 5 to 10 kt after midnight. Seas 1 foot or less. Wave Detail: NE 1 ft at 3 seconds and SW 1 ft at 6 seconds. .THU THROUGH FRI...NE winds 5 to 10 kt with gusts up to 20 kt. Seas 1 foot or less. .FRI NIGHT...E winds around 10 kt. Seas 1 foot or less. A chance of showers. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ235-300000- Rhode Island Sound- 703 AM EDT Mon Apr 29 2024 .TODAY...N winds 10 to 15 kt, becoming E this afternoon. Seas around 2 ft. Wave Detail: SW 2 ft at 4 seconds and NE 2 ft at 6 seconds. .TONIGHT...S winds 5 to 10 kt. Seas around 2 ft. Wave Detail: S 2 ft at 5 seconds and E 2 ft at 10 seconds. .TUE...E winds 5 to 10 kt, increasing to 10 to 15 kt in the afternoon. Seas around 2 ft. Wave Detail: S 2 ft at 6 seconds and E 1 ft at 11 seconds. .TUE NIGHT...E winds 10 to 15 kt, diminishing to 5 to 10 kt after midnight. Seas around 2 ft. Wave Detail: SE 2 ft at 4 seconds and E 1 ft at 11 seconds. A chance of showers after midnight. .WED...NE winds 10 to 15 kt. Seas around 2 ft. Wave Detail: NE 2 ft at 4 seconds and S 2 ft at 5 seconds. A chance of showers. .WED NIGHT...NE winds 10 to 15 kt, diminishing to 5 to 10 kt after midnight. Seas 2 to 3 ft. Wave Detail: NE 2 ft at 4 seconds and S 2 ft at 6 seconds. .THU THROUGH FRI...NE winds 5 to 10 kt with gusts up to 20 kt. Seas around 2 ft. .FRI NIGHT...E 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. $$ ANZ237-300000- Block Island Sound- 703 AM EDT Mon Apr 29 2024 .TODAY...NW winds 5 to 10 kt, becoming SE this afternoon. Seas around 2 ft. Wave Detail: S 2 ft at 5 seconds and E 2 ft at 9 seconds. .TONIGHT...S winds 5 to 10 kt. Seas around 2 ft. Wave Detail: S 2 ft at 5 seconds and E 2 ft at 9 seconds. .TUE...E winds 5 to 10 kt, increasing to 10 to 15 kt in the afternoon. Seas around 2 ft. Wave Detail: S 2 ft at 6 seconds and E 1 ft at 12 seconds. .TUE NIGHT...E winds 5 to 10 kt. Seas around 2 ft. Wave Detail: SE 2 ft at 5 seconds and E 2 ft at 10 seconds. A chance of showers after midnight. .WED...NE winds 5 to 10 kt. Seas around 2 ft. Wave Detail: S 2 ft at 5 seconds and E 2 ft at 6 seconds. A chance of showers. .WED NIGHT...NE winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: S 2 ft at 6 seconds and E 2 ft at 6 seconds. .THU THROUGH FRI...E winds 5 to 10 kt. Seas around 2 ft. .FRI NIGHT...E winds around 10 kt. Seas around 2 ft. A chance of showers. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ230-300000- Boston Harbor- 703 AM EDT Mon Apr 29 2024 .TODAY...NE winds 10 to 15 kt, becoming E this afternoon. Waves 1 foot or less. .TONIGHT...S winds 5 to 10 kt, becoming E after midnight. Waves 1 foot or less. .TUE...E winds 10 to 15 kt. Gusts up to 20 kt in the afternoon. Waves 1 foot or less, then around 2 ft in the afternoon. .TUE NIGHT...E winds 10 to 15 kt. Waves around 2 ft in the evening, then 1 foot or less. A chance of showers. .WED...NE winds 10 to 15 kt. Waves 1 foot or less, then around 2 ft in the afternoon. A chance of showers. .WED NIGHT...E winds 10 to 15 kt, becoming N around 5 kt after midnight. Waves 1 foot or less. .THU AND THU NIGHT...SE winds 5 to 10 kt, becoming SW. Waves 1 foot or less, then around 2 ft. .FRI AND FRI NIGHT...E winds 5 to 10 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. $$ ANZ236-300000- Narragansett Bay- 703 AM EDT Mon Apr 29 2024 .TODAY...N winds 5 to 10 kt, becoming SE 10 to 15 kt this afternoon. Waves around 2 ft. .TONIGHT...S winds 5 to 10 kt, diminishing to around 5 kt after midnight. Waves around 2 ft. .TUE...E winds 5 to 10 kt, becoming SE 10 to 15 kt in the afternoon. Waves 1 foot or less, then around 2 ft in the afternoon. .TUE NIGHT...E winds 5 to 10 kt. Waves around 2 ft. A chance of showers. .WED...NE winds 5 to 10 kt, increasing to 10 to 15 kt in the afternoon. Waves around 2 ft. A chance of showers. .WED NIGHT...NE winds 10 to 15 kt, diminishing to 5 to 10 kt after midnight. Waves around 2 ft. .THU THROUGH FRI...NE winds 5 to 10 kt. Waves around 2 ft. .FRI NIGHT...E winds around 10 kt. Waves around 2 ft. A chance of showers. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ 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