Coastal Waters Forecast
Issued by NWS Boston, MA
Issued by NWS Boston, MA
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428 FZUS51 KBOX 270206 CWFBOX Coastal Waters Forecast for Massachusetts and Rhode Island National Weather Service Boston/Norton MA 1006 PM EDT Fri Apr 26 2024 Coastal waters from the Merrimack River MA to Watch Hill RI out to 25 NM ANZ200-271500- 1006 PM EDT Fri Apr 26 2024 .Synopsis for Massachusetts and Rhode Island coastal waters... High pressure builds into New England through Saturday. The high eventually shifts offshore later this weekend. This will allow a warm front to lift in and bring showers late Saturday night into early Sunday. The trailing cold front may slide through on Monday as low pressure drops from the north, followed by another low late Tuesday. $$ ANZ250-271500- Coastal waters east of Ipswich Bay and the Stellwagen Bank National Marine Sanctuary- 1006 PM EDT Fri Apr 26 2024 .OVERNIGHT...SW winds 5 to 10 kt. Seas around 2 ft. Wave Detail: E 2 ft at 8 seconds and NE 1 ft at 3 seconds. .SAT...SW winds 5 to 10 kt, becoming SE in the afternoon. Seas around 2 ft. Wave Detail: NE 1 ft at 2 seconds and SW 1 ft at 3 seconds. .SAT NIGHT...S winds around 10 kt, becoming SW after midnight. Seas around 2 ft. Wave Detail: SE 2 ft at 3 seconds and E 2 ft at 9 seconds. .SUN...SW winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: SW 2 ft at 3 seconds and E 2 ft at 10 seconds. .SUN NIGHT...SW winds 10 to 15 kt, becoming W after midnight. Seas 2 to 3 ft. Wave Detail: SW 2 ft at 3 seconds and E 2 ft at 10 seconds. .MON AND MON NIGHT...E winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: NW 2 ft at 3 seconds and E 2 ft at 9 seconds. .TUE AND TUE NIGHT...SE winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. A chance of rain. .WED AND WED NIGHT...E winds around 10 kt, becoming SE. Seas 2 to 4 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ251-271500- Massachusetts Bay and Ipswich Bay- 1006 PM EDT Fri Apr 26 2024 .OVERNIGHT...SW winds 5 to 10 kt. Seas around 2 ft. Wave Detail: SW 2 ft at 3 seconds and NE 1 ft at 3 seconds. .SAT...SW winds 5 to 10 kt, becoming SE in the afternoon. Seas around 2 ft. Wave Detail: SW 1 ft at 3 seconds and E 1 ft at 3 seconds. .SAT NIGHT...S winds 5 to 10 kt, becoming SW after midnight. Seas around 2 ft. Wave Detail: E 2 ft at 9 seconds and W 1 ft at 2 seconds. .SUN...SW winds 5 to 10 kt, becoming S 10 to 15 kt in the afternoon. Seas around 2 ft. Wave Detail: S 2 ft at 3 seconds and E 2 ft at 9 seconds. .SUN NIGHT...SW winds 10 to 15 kt, becoming W after midnight. Seas around 2 ft. Wave Detail: SW 2 ft at 3 seconds and E 2 ft at 10 seconds. .MON...N winds around 10 kt, becoming NE in the afternoon. Seas around 2 ft. Wave Detail: N 2 ft at 3 seconds and E 2 ft at 9 seconds. .MON NIGHT...SE winds 5 to 10 kt. Seas around 2 ft. .TUE AND TUE NIGHT...SE winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. A chance of rain. .WED AND WED NIGHT...E winds around 10 kt, becoming SE. 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. $$ ANZ231-271500- Cape Cod Bay- 1006 PM EDT Fri Apr 26 2024 .OVERNIGHT...SW winds 5 to 10 kt. Seas 1 foot or less. Wave Detail: S 1 ft at 2 seconds and N 1 ft at 3 seconds. .SAT...SW winds 5 to 10 kt, becoming SE in the afternoon. Seas 1 foot or less. Wave Detail: W 1 ft at 2 seconds and N 1 ft at 3 seconds. .SAT NIGHT...SW winds 5 to 10 kt. Seas 1 foot or less. Wave Detail: SW 1 ft at 3 seconds and E 1 ft at 3 seconds. .SUN...SW winds 5 to 10 kt. Seas 1 foot or less, then around 2 ft in the afternoon. Wave Detail: E 1 ft at 2 seconds and SW 1 ft at 3 seconds. .SUN NIGHT...SW winds 5 to 10 kt. Seas around 2 ft. Wave Detail: E 2 ft at 10 seconds and SE 1 ft at 2 seconds. .MON AND MON NIGHT...SE winds 5 to 10 kt. Seas 1 foot or less. Wave Detail: NW 1 ft at 3 seconds and SE 1 ft at 4 seconds. .TUE AND TUE NIGHT...SE winds around 10 kt. Seas around 2 ft. A chance of rain. .WED AND WED NIGHT...E winds around 10 kt, becoming SE. Seas around 2 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ254-271500- Coastal waters from Provincetown MA to Chatham MA to Nantucket MA out 20 nm- 1006 PM EDT Fri Apr 26 2024 .OVERNIGHT...S winds around 5 kt, becoming W. Seas around 2 ft. Wave Detail: E 2 ft at 8 seconds and N 1 ft at 3 seconds. .SAT...W winds 5 to 10 kt. Seas around 2 ft. Wave Detail: N 1 ft at 3 seconds and S 1 ft at 5 seconds. .SAT NIGHT...SW winds 5 to 10 kt. Seas around 2 ft. Wave Detail: N 1 ft at 3 seconds and SW 1 ft at 4 seconds. .SUN...SW winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: E 3 ft at 10 seconds and SW 2 ft at 3 seconds. .SUN NIGHT...SW winds 5 to 10 kt. Seas around 3 ft. Wave Detail: E 3 ft at 10 seconds and SW 2 ft at 3 seconds. .MON AND MON NIGHT...E winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: E 3 ft at 10 seconds and NW 1 ft at 3 seconds. .TUE...E winds around 10 kt. Seas 2 to 3 ft. .TUE NIGHT...SE winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 4 ft. A chance of rain. .WED AND WED NIGHT...E winds 10 to 15 kt with gusts up to 20 kt, becoming SE. Seas 3 to 4 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. $$ ANZ255-271500- Coastal Waters extending out to 25 nm South of Marthas Vineyard and Nantucket- 1006 PM EDT Fri Apr 26 2024 .OVERNIGHT...SE winds around 5 kt, becoming W. Seas around 2 ft. Wave Detail: E 2 ft at 8 seconds and W 1 ft at 3 seconds. .SAT...W winds 5 to 10 kt. Seas around 2 ft. Wave Detail: E 2 ft at 7 seconds and W 1 ft at 2 seconds. .SAT NIGHT...W winds around 10 kt. Seas around 2 ft. Wave Detail: W 2 ft at 4 seconds and E 2 ft at 8 seconds. .SUN...SW winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: SW 3 ft at 5 seconds and E 2 ft at 9 seconds. .SUN NIGHT...SW winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: SW 3 ft at 4 seconds and E 3 ft at 10 seconds. .MON AND MON NIGHT...E winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: E 3 ft at 10 seconds and N 2 ft at 3 seconds. .TUE THROUGH WED NIGHT...SE winds 10 to 15 kt. Seas 2 to 4 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ256-271500- Coastal Waters from Montauk NY to Marthas Vineyard extending out to 20 nm South of Block Island- 1006 PM EDT Fri Apr 26 2024 .OVERNIGHT...S winds around 5 kt, becoming SW. Seas around 2 ft. Wave Detail: SE 2 ft at 8 seconds and SW 1 ft at 2 seconds. .SAT...W winds 5 to 10 kt, becoming SW 10 to 15 kt in the afternoon. Seas around 2 ft. Wave Detail: SW 2 ft at 3 seconds and SE 2 ft at 8 seconds. .SAT NIGHT...SW winds 10 to 15 kt. Gusts up to 20 kt after midnight. Seas around 2 ft. Wave Detail: SW 2 ft at 3 seconds and SE 2 ft at 8 seconds. .SUN...SW winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: SW 2 ft at 4 seconds and E 2 ft at 8 seconds. .SUN NIGHT...SW winds 10 to 15 kt, becoming W 5 to 10 kt after midnight. Seas 2 to 3 ft. Wave Detail: SW 2 ft at 4 seconds and E 2 ft at 9 seconds. .MON AND MON NIGHT...SE winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: E 3 ft at 10 seconds and SW 2 ft at 4 seconds. .TUE THROUGH WED NIGHT...SE winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 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. $$ ANZ232-271500- Nantucket Sound- 1006 PM EDT Fri Apr 26 2024 .OVERNIGHT...S winds around 5 kt, becoming W. Seas 1 foot or less. Wave Detail: W 1 ft at 2 seconds and E 1 ft at 3 seconds. .SAT...W winds 5 to 10 kt. Seas 1 foot or less, then around 2 ft in the afternoon. Wave Detail: W 1 ft at 2 seconds and NE 1 ft at 4 seconds, becoming SW 1 ft at 3 seconds and N 1 ft at 3 seconds. .SAT NIGHT...SW winds around 10 kt. Seas around 2 ft in the evening, then 1 foot or less. Wave Detail: SW 1 ft at 4 seconds and E 1 ft at 8 seconds. .SUN...SW winds 10 to 15 kt. Seas 1 foot or less, then around 2 ft in the afternoon. Wave Detail: SW 1 ft at 4 seconds and E 1 ft at 9 seconds, becoming SW 2 ft at 4 seconds and E 1 ft at 10 seconds. A chance of showers in the morning. .SUN NIGHT...SW winds 10 to 15 kt, becoming W 5 to 10 kt after midnight. Seas around 2 ft. Wave Detail: SW 2 ft at 4 seconds and E 1 ft at 10 seconds. .MON AND MON NIGHT...E winds 5 to 10 kt. Seas around 2 ft. Wave Detail: NW 1 ft at 3 seconds and SW 1 ft at 4 seconds. .TUE...SE winds around 10 kt. Seas around 2 ft. .TUE NIGHT...SE winds 10 to 15 kt. Seas around 2 ft. A chance of rain. .WED AND WED NIGHT...E winds 10 to 15 kt, becoming SE. Seas around 2 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ233-271500- Vineyard Sound- 1006 PM EDT Fri Apr 26 2024 .OVERNIGHT...S winds around 5 kt, becoming SW. Seas 1 foot or less. Wave Detail: SW 1 ft at 3 seconds and E 1 ft at 3 seconds. Patchy frost. .SAT...W winds 5 to 10 kt, becoming SW 10 to 15 kt in the afternoon. Seas 1 foot or less, then around 2 ft in the afternoon. Wave Detail: W 1 ft at 3 seconds and S 1 ft at 7 seconds, becoming SW 1 ft at 3 seconds and SE 1 ft at 7 seconds. .SAT NIGHT...SW winds 10 to 15 kt. Seas around 2 ft in the evening, then 1 foot or less. Wave Detail: SW 2 ft at 5 seconds and SE 1 ft at 8 seconds, becoming SW 1 ft at 5 seconds and SE 1 ft at 8 seconds. .SUN...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 1 foot or less. Wave Detail: SW 1 ft at 5 seconds and SE 1 ft at 9 seconds. .SUN NIGHT...SW winds 10 to 15 kt, becoming W 5 to 10 kt after midnight. Seas 1 foot or less. Wave Detail: SW 1 ft at 4 seconds and SE 1 ft at 9 seconds. .MON AND MON NIGHT...E winds 5 to 10 kt. Seas 1 foot or less. Wave Detail: NE 1 ft at 2 seconds and W 1 ft at 4 seconds. .TUE...SE winds 5 to 10 kt. Seas 1 foot or less. .TUE NIGHT...SE winds around 10 kt. Seas around 2 ft. A chance of rain. .WED AND WED NIGHT...E winds around 10 kt, becoming SE. 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. $$ ANZ234-271500- Buzzards Bay- 1006 PM EDT Fri Apr 26 2024 .OVERNIGHT...S winds around 5 kt, becoming SW. Seas 1 foot or less. Wave Detail: NE 1 ft at 3 seconds and SW 1 ft at 4 seconds. Patchy frost. .SAT...SW winds 5 to 10 kt, increasing to 10 to 15 kt with gusts up to 20 kt in the afternoon. Seas 1 foot or less. Wave Detail: SW 1 ft at 3 seconds and NE 1 ft at 3 seconds. .SAT NIGHT...SW winds 10 to 15 kt, diminishing to 5 to 10 kt after midnight. Seas around 2 ft in the evening, then 1 foot or less. Wave Detail: SW 2 ft at 4 seconds and SE 1 ft at 8 seconds, becoming SW 1 ft at 4 seconds and SE 1 ft at 8 seconds. .SUN...SW winds 10 to 15 kt, increasing to 15 to 20 kt in the afternoon. Seas 1 foot or less. Wave Detail: SW 1 ft at 4 seconds and SE 1 ft at 9 seconds. .SUN NIGHT...SW winds 10 to 15 kt, becoming W 5 to 10 kt after midnight. Seas 1 foot or less. Wave Detail: SW 1 ft at 4 seconds and SE 1 ft at 9 seconds. .MON AND MON NIGHT...E winds 5 to 10 kt. Seas 1 foot or less. Wave Detail: N 1 ft at 3 seconds and SW 1 ft at 4 seconds. .TUE AND TUE NIGHT...SE winds 5 to 10 kt. Seas 1 foot or less, then around 2 ft. A chance of rain. .WED AND WED NIGHT...NE winds around 10 kt, becoming SE. Seas around 2 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ235-271500- Rhode Island Sound- 1006 PM EDT Fri Apr 26 2024 .OVERNIGHT...S winds around 5 kt, becoming SW. Seas around 2 ft. Wave Detail: SW 1 ft at 4 seconds and SE 1 ft at 8 seconds. .SAT...SW 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 ft at 7 seconds. .SAT NIGHT...SW winds 10 to 15 kt. Gusts up to 20 kt after midnight. Seas around 2 ft. Wave Detail: SW 2 ft at 5 seconds and SE 2 ft at 8 seconds. .SUN...SW winds 10 to 15 kt. Gusts up to 20 kt in the afternoon. Seas around 2 ft. Wave Detail: SW 2 ft at 4 seconds and SE 2 ft at 8 seconds. .SUN NIGHT...W winds 10 to 15 kt. Seas around 2 ft. Wave Detail: SW 2 ft at 4 seconds and SE 1 ft at 9 seconds. .MON AND MON NIGHT...SE winds 5 to 10 kt. Seas around 2 ft. Wave Detail: SW 2 ft at 4 seconds and NE 1 ft at 2 seconds. .TUE AND TUE NIGHT...SE winds 10 to 15 kt. Seas 2 to 3 ft. A chance of rain. .WED AND WED NIGHT...NE winds around 10 kt, becoming SE. 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. $$ ANZ237-271500- Block Island Sound- 1006 PM EDT Fri Apr 26 2024 .OVERNIGHT...S winds 5 to 10 kt, becoming SW. Seas around 2 ft. Wave Detail: SE 2 ft at 8 seconds and SW 1 ft at 4 seconds. .SAT...SW winds 5 to 10 kt, increasing to 10 to 15 kt in the afternoon. Seas around 2 ft. Wave Detail: SW 2 ft at 4 seconds and SE 1 ft at 8 seconds. .SAT NIGHT...SW winds 10 to 15 kt. Gusts up to 20 kt after midnight. Seas around 2 ft. Wave Detail: SW 2 ft at 4 seconds and SE 1 ft at 7 seconds. .SUN...SW winds 10 to 15 kt. Seas around 2 ft. Wave Detail: SW 2 ft at 4 seconds and SE 2 ft at 8 seconds. .SUN NIGHT...W winds 5 to 10 kt. Seas around 2 ft. Wave Detail: SW 2 ft at 4 seconds and SE 2 ft at 9 seconds. .MON AND MON NIGHT...SE winds 5 to 10 kt. Seas around 2 ft. Wave Detail: E 2 ft at 10 seconds and NE 1 ft at 2 seconds. .TUE AND TUE NIGHT...E winds 5 to 10 kt. Seas around 2 ft. A chance of rain. .WED AND WED NIGHT...E winds around 10 kt, becoming SE. Seas 2 to 3 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ230-271500- Boston Harbor- 1006 PM EDT Fri Apr 26 2024 .OVERNIGHT...S winds 5 to 10 kt. Waves 1 foot or less. .SAT...SW winds 5 to 10 kt, becoming SE in the afternoon. Waves 1 foot or less. .SAT NIGHT...S winds 5 to 10 kt, becoming SW after midnight. Waves 1 foot or less. .SUN...SW winds 5 to 10 kt, increasing to 10 to 15 kt in the afternoon. Waves 1 foot or less, then around 2 ft in the afternoon. .SUN NIGHT...SW winds 10 to 15 kt, becoming W after midnight. Waves around 2 ft in the evening, then 1 foot or less. .MON...N winds around 10 kt, becoming E in the afternoon. Waves 1 foot or less. .MON NIGHT...SE winds 5 to 10 kt. Waves 1 foot or less. A chance of rain after midnight. .TUE AND TUE NIGHT...SE winds 5 to 10 kt. Gusts up to 20 kt. Waves 2 to 3 ft. A chance of rain. .WED AND WED NIGHT...E winds around 10 kt, becoming SE. 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. $$ ANZ236-271500- Narragansett Bay- 1006 PM EDT Fri Apr 26 2024 .OVERNIGHT...SW winds 5 to 10 kt. Waves 1 foot or less. .SAT...SW winds 5 to 10 kt, increasing to 10 to 15 kt with gusts up to 20 kt in the afternoon. Waves 1 foot or less, then around 2 ft in the afternoon. .SAT NIGHT...SW winds 10 to 15 kt, diminishing to 5 to 10 kt after midnight. Waves around 2 ft in the evening, then 1 foot or less. .SUN...SW winds 10 to 15 kt. Gusts up to 20 kt in the afternoon. Waves around 2 ft. .SUN NIGHT...SW winds 10 to 15 kt, becoming W 5 to 10 kt after midnight. Waves around 2 ft. .MON AND MON NIGHT...SE winds 5 to 10 kt. Waves around 2 ft. .TUE AND TUE NIGHT...SE winds 5 to 10 kt. Waves around 2 ft. A chance of rain. .WED AND WED NIGHT...NE winds around 10 kt, becoming SE. Waves around 2 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ 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