Coastal Waters Forecast
Issued by NWS Boston, MA
Issued by NWS Boston, MA
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762 FZUS51 KBOX 300803 CWFBOX Coastal Waters Forecast for Massachusetts and Rhode Island National Weather Service Boston/Norton MA 403 AM EDT Mon Sep 30 2024 Coastal waters from the Merrimack River MA to Watch Hill RI out to 25 NM ANZ200-302100- 403 AM EDT Mon Sep 30 2024 .Synopsis for Massachusetts and Rhode Island coastal waters... High pres will build over the waters through today. Weak low pres will track well S of New Eng Tue and Wed. High pres will build back over the waters Thu and Fri before another low crosses next weekend. $$ ANZ250-302100- Coastal waters east of Ipswich Bay and the Stellwagen Bank National Marine Sanctuary- 403 AM EDT Mon Sep 30 2024 .TODAY...NE winds around 5 kt. Seas around 2 ft. Wave Detail: E 2 ft at 9 seconds and SE 1 foot at 4 seconds. .TONIGHT...NE winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: E 3 ft at 10 seconds and SE 1 foot at 4 seconds. Patchy fog after midnight. .TUE...E winds 10 to 15 kt. Seas 2 to 4 ft. Wave Detail: E 4 ft at 11 seconds and E 3 ft at 5 seconds. Patchy fog in the morning with vsby 1 to 3 NM. .TUE NIGHT...E winds 5 to 10 kt. Seas 3 to 4 ft. Wave Detail: E 4 ft at 6 seconds and E 4 ft at 12 seconds. .WED...E winds 5 to 10 kt. Seas 3 to 4 ft. Wave Detail: E 4 ft at 7 seconds. .WED NIGHT...SE winds 5 to 10 kt. Seas 3 to 4 ft. Wave Detail: E 4 ft at 10 seconds and E 2 ft at 6 seconds. .THU THROUGH FRI NIGHT...S winds 5 to 10 kt. Seas 2 to 4 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ251-302100- Massachusetts Bay and Ipswich Bay- 403 AM EDT Mon Sep 30 2024 .TODAY...N winds around 5 kt, becoming E this afternoon. Seas around 2 ft. Wave Detail: E 2 ft at 9 seconds. .TONIGHT...NE winds 5 to 10 kt. Seas around 2 ft. Wave Detail: E 2 ft at 10 seconds. Patchy fog after midnight. .TUE...NE winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: E 3 ft at 10 seconds and E 2 ft at 3 seconds. .TUE NIGHT...E winds 5 to 10 kt. Seas 3 to 4 ft. Wave Detail: E 4 ft at 11 seconds and E 3 ft at 6 seconds. .WED...E winds 5 to 10 kt. Seas around 3 ft. Wave Detail: E 3 ft at 6 seconds and E 3 ft at 11 seconds. .WED NIGHT...SE winds 5 to 10 kt, becoming S after midnight. Seas 2 to 3 ft. Wave Detail: E 3 ft at 10 seconds and E 1 foot at 6 seconds. .THU THROUGH FRI NIGHT...SW winds 5 to 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. $$ ANZ231-302100- Cape Cod Bay- 403 AM EDT Mon Sep 30 2024 .TODAY...NE winds around 5 kt. Seas around 2 ft. Wave Detail: E 2 ft at 9 seconds and E 1 foot at 3 seconds. .TONIGHT...NE winds 5 to 10 kt. Seas around 2 ft. Wave Detail: E 2 ft at 10 seconds and SE 1 foot at 2 seconds. Patchy fog after midnight. .TUE...E winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: E 2 ft at 11 seconds and E 1 foot at 2 seconds. Patchy fog in the morning. .TUE NIGHT...E winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: E 2 ft at 11 seconds and E 1 foot at 3 seconds. .WED...E winds 5 to 10 kt. Seas around 2 ft. Wave Detail: E 2 ft at 3 seconds and E 2 ft at 9 seconds. .WED NIGHT...SE winds 5 to 10 kt. Seas around 2 ft. Wave Detail: NE 2 ft at 3 seconds and E 2 ft at 9 seconds. .THU THROUGH FRI NIGHT...S winds 5 to 10 kt. Seas around 2 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ254-302100- Coastal waters from Provincetown MA to Chatham MA to Nantucket MA out 20 nm- 403 AM EDT Mon Sep 30 2024 .TODAY...NE winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: E 3 ft at 9 seconds and S 1 foot at 8 seconds. Patchy fog this morning with vsby 1 to 3 NM. .TONIGHT...NE winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: E 3 ft at 10 seconds and S 1 foot at 7 seconds. Patchy fog after midnight with vsby 1 to 3 NM. .TUE...E winds 10 to 15 kt. Seas 3 to 4 ft. Wave Detail: E 4 ft at 11 seconds and SE 3 ft at 6 seconds. Patchy fog in the morning with vsby 1 to 3 NM. .TUE NIGHT...E winds 10 to 15 kt. Seas 4 to 5 ft. Wave Detail: E 5 ft at 10 seconds and E 4 ft at 6 seconds. .WED AND WED NIGHT...E winds 5 to 10 kt. Seas around 4 ft. Wave Detail: E 4 ft at 9 seconds and E 2 ft at 6 seconds. .THU THROUGH FRI NIGHT...S winds 5 to 10 kt. 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. $$ ANZ255-302100- Coastal Waters extending out to 25 nm South of Marthas Vineyard and Nantucket- 403 AM EDT Mon Sep 30 2024 .TODAY...E winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: S 2 ft at 8 seconds and E 2 ft at 9 seconds. .TONIGHT...NE winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: E 3 ft at 10 seconds and SE 2 ft at 6 seconds. Patchy fog after midnight with vsby 1 to 3 NM. .TUE...NE winds 10 to 15 kt. Seas 2 to 4 ft. Wave Detail: SE 4 ft at 6 seconds and E 3 ft at 11 seconds. Patchy fog in the morning with vsby 1 to 3 NM. .TUE NIGHT...E winds 10 to 15 kt. Gusts up to 20 kt in the evening. Seas 3 to 4 ft. Wave Detail: E 4 ft at 8 seconds. .WED AND WED NIGHT...E winds 10 to 15 kt. Seas 3 to 4 ft. Wave Detail: E 4 ft at 9 seconds and N 3 ft at 4 seconds. .THU THROUGH FRI NIGHT...S winds 5 to 10 kt. Seas 2 to 4 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ256-302100- Coastal Waters from Montauk NY to Marthas Vineyard extending out to 20 nm South of Block Island- 403 AM EDT Mon Sep 30 2024 .TODAY...E winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: SE 2 ft at 6 seconds and E 2 ft at 9 seconds. .TONIGHT...E winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: SE 3 ft at 6 seconds and E 2 ft at 10 seconds. .TUE...NE winds 10 to 15 kt. Gusts up to 20 kt in the afternoon. Seas 3 to 4 ft. Wave Detail: SE 4 ft at 7 seconds and E 4 ft at 11 seconds. .TUE NIGHT...E winds 10 to 15 kt. Gusts up to 20 kt in the evening. Seas 3 to 5 ft. Wave Detail: E 5 ft at 8 seconds. .WED AND WED NIGHT...E winds 10 to 15 kt. Seas 3 to 4 ft. Wave Detail: E 4 ft at 9 seconds and N 3 ft at 4 seconds. .THU THROUGH FRI NIGHT...SW winds 5 to 10 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. $$ ANZ232-302100- Nantucket Sound- 403 AM EDT Mon Sep 30 2024 .TODAY...E winds 5 to 10 kt. Seas around 2 ft. Wave Detail: SE 1 foot at 6 seconds and E 1 foot at 9 seconds. Patchy fog this afternoon with vsby 1 to 3 NM. .TONIGHT...NE winds 5 to 10 kt. Seas around 2 ft. Wave Detail: E 1 foot at 4 seconds and E 1 foot at 10 seconds. Patchy fog after midnight with vsby 1 to 3 NM. .TUE...NE winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: E 2 ft at 3 seconds and E 1 foot at 11 seconds. Patchy fog in the morning with vsby 1 to 3 NM. .TUE NIGHT...E winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: E 3 ft at 4 seconds and E 2 ft at 12 seconds. .WED AND WED NIGHT...E winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: E 3 ft at 4 seconds and E 2 ft at 10 seconds. .THU THROUGH FRI NIGHT...S winds 5 to 10 kt. Seas around 2 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ233-302100- Vineyard Sound- 403 AM EDT Mon Sep 30 2024 .TODAY...E winds 5 to 10 kt. Seas 1 foot or less. Wave Detail: SE 1 foot at 7 seconds and E 1 foot at 9 seconds. .TONIGHT...NE winds 5 to 10 kt. Seas around 2 ft. Wave Detail: E 1 foot at 4 seconds and SE 1 foot at 10 seconds. Patchy fog after midnight. .TUE...NE winds 5 to 10 kt, becoming E 10 to 15 kt in the afternoon. Seas around 2 ft. Wave Detail: E 2 ft at 4 seconds and E 1 foot at 12 seconds. Patchy fog in the morning. .TUE NIGHT...E winds 10 to 15 kt. Seas around 2 ft. Wave Detail: E 2 ft at 4 seconds and E 2 ft at 12 seconds. .WED AND WED NIGHT...E winds 5 to 10 kt. Seas around 2 ft. Wave Detail: E 2 ft at 4 seconds and E 2 ft at 9 seconds. .THU THROUGH FRI NIGHT...S 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. $$ ANZ234-302100- Buzzards Bay- 403 AM EDT Mon Sep 30 2024 .TODAY...NE winds 5 to 10 kt. Seas 1 foot or less. Wave Detail: SE 1 foot at 6 seconds and E 1 foot at 9 seconds. .TONIGHT...NE winds 5 to 10 kt. Seas 1 foot or less. Wave Detail: E 1 foot at 3 seconds and E 1 foot at 10 seconds. Patchy fog after midnight. .TUE...NE winds 5 to 10 kt, becoming E 10 to 15 kt in the afternoon. Seas around 2 ft. Wave Detail: E 2 ft at 3 seconds and E 1 foot at 11 seconds. Patchy fog in the morning. .TUE NIGHT...E winds 10 to 15 kt. Seas around 2 ft. Wave Detail: E 2 ft at 3 seconds and E 2 ft at 12 seconds. .WED AND WED NIGHT...E winds 5 to 10 kt. Seas around 2 ft. Wave Detail: NE 2 ft at 3 seconds and E 2 ft at 9 seconds. .THU THROUGH FRI NIGHT...SW winds 5 to 10 kt. Seas around 2 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ235-302100- Rhode Island Sound- 403 AM EDT Mon Sep 30 2024 .TODAY...E winds 5 to 10 kt. Seas around 2 ft. Wave Detail: SE 2 ft at 6 seconds and SE 1 foot at 9 seconds. .TONIGHT...NE winds 5 to 10 kt. Seas around 2 ft. Wave Detail: SE 2 ft at 5 seconds and SE 1 foot at 9 seconds. Patchy fog after midnight. .TUE...NE winds 10 to 15 kt. Gusts up to 20 kt in the afternoon. Seas 2 to 3 ft. Wave Detail: E 3 ft at 7 seconds and E 1 foot at 12 seconds. .TUE NIGHT...E winds 10 to 15 kt. Gusts up to 20 kt in the evening. Seas 2 to 3 ft. Wave Detail: E 3 ft at 7 seconds and SE 3 ft at 13 seconds. .WED AND WED NIGHT...E winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: SE 3 ft at 9 seconds and NE 2 ft at 4 seconds. .THU THROUGH FRI 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. $$ ANZ237-302100- Block Island Sound- 403 AM EDT Mon Sep 30 2024 .TODAY...E winds 5 to 10 kt. Seas around 2 ft. Wave Detail: E 2 ft at 6 seconds and SE 1 foot at 9 seconds. .TONIGHT...E winds 5 to 10 kt. Seas around 2 ft. Wave Detail: E 2 ft at 5 seconds and SE 1 foot at 9 seconds. .TUE...NE winds 10 to 15 kt. Gusts up to 20 kt in the afternoon. Seas 2 to 3 ft. Wave Detail: E 3 ft at 6 seconds and E 1 foot at 11 seconds. .TUE NIGHT...E winds 10 to 15 kt. Gusts up to 20 kt in the evening. Seas 3 to 4 ft. Wave Detail: E 4 ft at 6 seconds and SE 4 ft at 11 seconds. .WED AND WED NIGHT...E winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: SE 3 ft at 9 seconds and E 2 ft at 4 seconds. .THU THROUGH FRI NIGHT...SW winds 5 to 10 kt. Seas 2 to 3 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ230-302100- Boston Harbor- 403 AM EDT Mon Sep 30 2024 .TODAY...N winds around 5 kt, becoming E this afternoon. Waves 1 foot or less. Patchy fog this morning. .TONIGHT...NE winds 5 to 10 kt. Waves 1 foot or less. Patchy fog after midnight. .TUE...NE winds 5 to 10 kt, becoming E 10 to 15 kt in the afternoon. Waves 2 to 3 ft. .TUE NIGHT...E winds 5 to 10 kt. Waves 1 foot or less. .WED...E winds 5 to 10 kt. Waves 1 foot or less. .WED NIGHT...SE winds 5 to 10 kt, becoming S after midnight. Waves 1 foot or less. .THU THROUGH FRI NIGHT...SW winds 5 to 10 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. $$ ANZ236-302100- Narragansett Bay- 403 AM EDT Mon Sep 30 2024 .TODAY...NE winds 5 to 10 kt. Waves around 2 ft. .TONIGHT...NE winds 5 to 10 kt. Waves around 2 ft. Patchy fog after midnight. .TUE...NE winds 5 to 10 kt. Waves 2 to 3 ft. Patchy fog in the morning. .TUE NIGHT...E winds 5 to 10 kt. Waves 2 to 3 ft. .WED...E winds 5 to 10 kt. Waves 2 to 3 ft. .WED NIGHT...E winds around 5 kt. Waves 2 to 3 ft. .THU THROUGH FRI NIGHT...SW winds 5 to 10 kt. Waves around 2 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ 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