Coastal Waters Forecast
Issued by NWS Boston, MA
Issued by NWS Boston, MA
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705 FZUS51 KBOX 281703 CWFBOX Coastal Waters Forecast for Massachusetts and Rhode Island National Weather Service Boston/Norton MA 103 PM EDT Sat Sep 28 2024 Coastal waters from the Merrimack River MA to Watch Hill RI out to 25 NM ANZ200-290600- 103 PM EDT Sat Sep 28 2024 .Synopsis for Massachusetts and Rhode Island coastal waters... High pressure over Quebec will build over New England through the weekend. Weakening low pressure is expected to pass offshore south of New England Tue and Wed. $$ ANZ250-290600- Coastal waters east of Ipswich Bay and the Stellwagen Bank National Marine Sanctuary- 103 PM EDT Sat Sep 28 2024 .THIS AFTERNOON...NE winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: E 3 ft at 10 seconds and E 1 foot at 3 seconds. .TONIGHT...E winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: E 3 ft at 9 seconds and E 1 foot at 3 seconds. Patchy fog in the evening with vsby 1 to 3 NM. .SUN...NE winds 5 to 10 kt. Seas around 2 ft. Wave Detail: NE 2 ft at 4 seconds and E 2 ft at 9 seconds. .SUN NIGHT...SE winds around 5 kt, becoming SW around 5 kt after midnight. Seas around 2 ft. Wave Detail: E 2 ft at 9 seconds and E 1 foot at 4 seconds. .MON AND MON NIGHT...E winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: E 3 ft at 10 seconds and SE 1 foot at 4 seconds. .TUE...E winds around 10 kt. Seas 3 to 4 ft. Wave Detail: E 4 ft at 11 seconds and E 3 ft at 5 seconds. .TUE NIGHT THROUGH WED NIGHT...NE winds 10 to 15 kt with gusts up to 20 kt. Seas 4 to 6 ft. A chance of showers. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ251-290600- Massachusetts Bay and Ipswich Bay- 103 PM EDT Sat Sep 28 2024 .THIS AFTERNOON...NE winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: E 3 ft at 10 seconds and E 1 foot at 3 seconds. .TONIGHT...E winds 5 to 10 kt. Seas around 2 ft. Wave Detail: E 2 ft at 9 seconds and E 1 foot at 3 seconds. Patchy fog in the evening with vsby 1 to 3 NM. .SUN...NE winds 5 to 10 kt. Seas around 2 ft. Wave Detail: E 2 ft at 9 seconds and NE 1 foot at 4 seconds. .SUN NIGHT...SE winds around 5 kt, becoming SW around 5 kt after midnight. Seas around 2 ft. Wave Detail: E 2 ft at 9 seconds and E 1 foot at 4 seconds. Patchy fog after midnight. .MON AND MON NIGHT...E winds 5 to 10 kt. Seas around 2 ft. Wave Detail: E 2 ft at 9 seconds. .TUE...E winds 5 to 10 kt. Seas 2 to 4 ft. Wave Detail: E 3 ft at 10 seconds and E 2 ft at 3 seconds. .TUE NIGHT THROUGH WED NIGHT...N 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. $$ ANZ231-290600- Cape Cod Bay- 103 PM EDT Sat Sep 28 2024 .THIS AFTERNOON...NE winds 5 to 10 kt. Seas around 2 ft. Wave Detail: E 2 ft at 10 seconds and E 1 foot at 2 seconds. .TONIGHT...E winds 5 to 10 kt. Seas around 2 ft. Wave Detail: E 2 ft at 10 seconds and E 1 foot at 2 seconds. Patchy fog in the evening with vsby 1 to 3 NM. .SUN...NE winds 5 to 10 kt. Seas around 2 ft. Wave Detail: NE 1 foot at 2 seconds and E 1 foot at 9 seconds. .SUN NIGHT...E winds around 5 kt. Seas 1 foot or less. Wave Detail: E 1 foot at 3 seconds and E 1 foot at 9 seconds. Patchy fog. .MON AND MON NIGHT...E winds 5 to 10 kt. Seas around 2 ft. Wave Detail: E 2 ft at 9 seconds and E 1 foot at 3 seconds. .TUE...E winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: E 2 ft at 11 seconds and E 1 foot at 2 seconds. .TUE NIGHT THROUGH WED NIGHT...N winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. A chance of showers. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ254-290600- Coastal waters from Provincetown MA to Chatham MA to Nantucket MA out 20 nm- 103 PM EDT Sat Sep 28 2024 .THIS AFTERNOON...NE winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: E 3 ft at 10 seconds and S 1 foot at 4 seconds. .TONIGHT...NE winds around 10 kt. Seas 2 to 3 ft. Wave Detail: E 3 ft at 9 seconds and E 2 ft at 4 seconds. Patchy fog in the evening with vsby 1 NM or less. .SUN...NE winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: E 3 ft at 9 seconds and NE 2 ft at 5 seconds. Patchy fog in the afternoon with vsby 1 to 3 NM. .SUN NIGHT...E winds around 5 kt. Seas 2 to 3 ft. Wave Detail: E 3 ft at 9 seconds and S 2 ft at 8 seconds. Patchy fog. Vsby 1 NM or less, increasing to 1 to 3 NM after midnight. .MON AND MON NIGHT...E winds 5 to 10 kt. Seas 2 to 4 ft. Wave Detail: E 3 ft at 9 seconds and S 1 foot at 8 seconds. .TUE...E winds 10 to 15 kt. Seas 3 to 5 ft. Wave Detail: E 4 ft at 11 seconds and SE 3 ft at 6 seconds. .TUE NIGHT THROUGH WED NIGHT...NE winds 10 to 15 kt with gusts up to 20 kt. Seas 4 to 6 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. $$ ANZ255-290600- Coastal Waters extending out to 25 nm South of Marthas Vineyard and Nantucket- 103 PM EDT Sat Sep 28 2024 .THIS AFTERNOON...E winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: E 3 ft at 10 seconds and SE 2 ft at 5 seconds. Isolated showers. .TONIGHT...E winds 10 to 15 kt. Seas 2 to 4 ft. Wave Detail: E 3 ft at 4 seconds and E 2 ft at 10 seconds. Patchy fog. Vsby 1 NM or less, increasing to 1 to 3 NM after midnight. .SUN...E winds 10 to 15 kt. Seas 2 to 4 ft. Wave Detail: E 3 ft at 6 seconds and SE 3 ft at 9 seconds. Patchy fog in the afternoon with vsby 1 to 3 NM. .SUN NIGHT...E winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: E 3 ft at 9 seconds. Patchy fog. Vsby 1 NM or less, increasing to 1 to 3 NM after midnight. .MON AND MON NIGHT...E winds 10 to 15 kt. Seas 2 to 4 ft. Wave Detail: E 3 ft at 10 seconds and S 2 ft at 8 seconds. .TUE...E winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 5 ft. Wave Detail: SE 4 ft at 6 seconds and E 3 ft at 11 seconds. .TUE NIGHT THROUGH WED NIGHT...N winds 10 to 15 kt with gusts up to 20 kt. Seas 4 to 6 ft. A chance of showers. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ256-290600- Coastal Waters from Montauk NY to Marthas Vineyard extending out to 20 nm South of Block Island- 103 PM EDT Sat Sep 28 2024 .THIS AFTERNOON...E winds 10 to 15 kt with gusts up to 25 kt. Seas 3 to 4 ft. Wave Detail: SE 3 ft at 4 seconds and E 3 ft at 10 seconds. Isolated showers. .TONIGHT...E winds 10 to 15 kt with gusts up to 25 kt. Seas 3 to 4 ft. Wave Detail: E 4 ft at 6 seconds and E 3 ft at 10 seconds. .SUN...E winds 10 to 15 kt. Seas 3 to 4 ft. Wave Detail: E 4 ft at 6 seconds and E 2 ft at 9 seconds. .SUN NIGHT...E winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: E 3 ft at 6 seconds and E 2 ft at 9 seconds. .MON AND MON NIGHT...E winds 10 to 15 kt. Seas 2 to 4 ft. Wave Detail: SE 3 ft at 6 seconds and E 2 ft at 9 seconds. .TUE...E winds 15 to 20 kt. Seas 3 to 5 ft. Wave Detail: E 5 ft at 11 seconds and SE 4 ft at 7 seconds. .TUE NIGHT THROUGH WED NIGHT...N winds 15 to 20 kt. Seas 4 to 6 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. $$ ANZ232-290600- Nantucket Sound- 103 PM EDT Sat Sep 28 2024 .THIS AFTERNOON...E winds around 10 kt. Seas around 2 ft. Wave Detail: E 2 ft at 10 seconds and SE 1 foot at 4 seconds. .TONIGHT...NE winds 10 to 15 kt. Seas around 2 ft. Wave Detail: E 2 ft at 3 seconds and E 1 foot at 10 seconds. Patchy fog in the evening with vsby 1 NM or less. .SUN...NE winds 5 to 10 kt. Seas around 2 ft. Wave Detail: E 2 ft at 4 seconds and E 1 foot at 9 seconds. .SUN NIGHT...E winds 5 to 10 kt. Seas around 2 ft in the evening, then 1 foot or less. Wave Detail: E 1 foot at 5 seconds and E 1 foot at 9 seconds, becoming SE 1 foot at 6 seconds and E 1 foot at 9 seconds. Patchy fog. Vsby 1 to 3 NM. .MON AND MON NIGHT...E winds 5 to 10 kt. Seas around 2 ft. Wave Detail: SE 1 foot at 6 seconds and E 1 foot at 9 seconds. .TUE...E winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Wave Detail: E 2 ft at 3 seconds and E 1 foot at 11 seconds. .TUE NIGHT THROUGH WED NIGHT...N winds around 15 kt with gusts up to 20 kt. Seas 3 to 4 ft. A chance of showers. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ233-290600- Vineyard Sound- 103 PM EDT Sat Sep 28 2024 .THIS AFTERNOON...E winds around 10 kt. Seas around 2 ft. Wave Detail: E 1 foot at 4 seconds and SE 1 foot at 10 seconds. .TONIGHT...E winds 10 to 15 kt. Seas around 2 ft. Wave Detail: E 2 ft at 5 seconds and SE 1 foot at 10 seconds. Patchy fog in the evening with vsby 1 to 3 NM. .SUN...NE winds 5 to 10 kt. Seas around 2 ft. Wave Detail: E 2 ft at 5 seconds and SE 1 foot at 9 seconds. .SUN NIGHT...E winds 5 to 10 kt. Seas around 2 ft in the evening, then 1 foot or less. Wave Detail: E 1 foot at 5 seconds and SE 1 foot at 9 seconds, becoming SE 1 foot at 8 seconds. Patchy fog. .MON AND MON NIGHT...E winds 5 to 10 kt. Seas around 2 ft. Wave Detail: SE 1 foot at 7 seconds and E 1 foot at 9 seconds. .TUE...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 1 foot at 12 seconds. .TUE NIGHT THROUGH WED NIGHT...N winds 10 to 15 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. $$ ANZ234-290600- Buzzards Bay- 103 PM EDT Sat Sep 28 2024 .THIS AFTERNOON...E winds 5 to 10 kt. Seas 1 foot or less. Wave Detail: E 1 foot at 3 seconds and E 1 foot at 10 seconds. .TONIGHT...NE winds 5 to 10 kt. Seas around 2 ft. Wave Detail: E 1 foot at 3 seconds and SE 1 foot at 10 seconds. .SUN...NE winds 5 to 10 kt. Seas around 2 ft. Wave Detail: NE 1 foot at 4 seconds and SE 1 foot at 9 seconds. .SUN NIGHT...E winds 5 to 10 kt, becoming NE after midnight. Seas around 2 ft in the evening, then 1 foot or less. Wave Detail: E 1 foot at 5 seconds and SE 1 foot at 9 seconds, becoming E 1 foot at 6 seconds and E 1 foot at 9 seconds. Patchy fog. .MON AND MON NIGHT...E winds 5 to 10 kt. Seas around 2 ft. Wave Detail: SE 1 foot at 6 seconds and E 1 foot at 9 seconds. .TUE...E winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Wave Detail: E 2 ft at 3 seconds and E 1 foot at 11 seconds. .TUE NIGHT THROUGH WED NIGHT...N winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. A chance of showers. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ235-290600- Rhode Island Sound- 103 PM EDT Sat Sep 28 2024 .THIS AFTERNOON...E winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Wave Detail: SE 2 ft at 4 seconds and SE 2 ft at 10 seconds. Isolated showers. .TONIGHT...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 5 seconds and SE 2 ft at 10 seconds. .SUN...NE winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: E 3 ft at 6 seconds and SE 1 foot at 9 seconds. .SUN NIGHT...E winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: E 3 ft at 6 seconds and SE 1 foot at 9 seconds. .MON AND MON NIGHT...E winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: SE 2 ft at 6 seconds and SE 1 foot at 9 seconds. .TUE...E winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. Wave Detail: E 4 ft at 7 seconds and E 1 foot at 12 seconds. .TUE NIGHT THROUGH WED NIGHT...N 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. $$ ANZ237-290600- Block Island Sound- 103 PM EDT Sat Sep 28 2024 .THIS AFTERNOON...E winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Wave Detail: E 3 ft at 4 seconds and SE 2 ft at 10 seconds. Isolated showers. .TONIGHT...E winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Wave Detail: E 3 ft at 5 seconds and SE 2 ft at 10 seconds. .SUN...NE winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: E 3 ft at 6 seconds and SE 1 foot at 9 seconds. .SUN NIGHT...E winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: E 3 ft at 6 seconds and SE 1 foot at 9 seconds. .MON AND MON NIGHT...E winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: E 2 ft at 6 seconds and SE 1 foot at 9 seconds. .TUE...E winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 4 ft. Wave Detail: E 4 ft at 6 seconds and E 1 foot at 11 seconds. .TUE NIGHT THROUGH WED NIGHT...N winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 4 ft. A chance of showers. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ230-290600- Boston Harbor- 103 PM EDT Sat Sep 28 2024 .THIS AFTERNOON...E winds around 10 kt. Waves 1 foot or less. .TONIGHT...E winds 5 to 10 kt. Waves 1 foot or less. Patchy fog in the evening with vsby 1 to 3 NM. .SUN...NE winds 5 to 10 kt. Waves 1 foot or less. .SUN NIGHT...SE winds around 5 kt, becoming SW around 5 kt after midnight. Waves 1 foot or less. Patchy fog after midnight. .MON AND MON NIGHT...E winds 5 to 10 kt. Waves 1 foot or less. .TUE...E winds 5 to 10 kt. Waves 2 to 3 ft. .TUE NIGHT THROUGH WED NIGHT...N winds 10 to 15 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. $$ ANZ236-290600- Narragansett Bay- 103 PM EDT Sat Sep 28 2024 .THIS AFTERNOON...E winds 5 to 10 kt. Waves around 2 ft. Isolated showers. .TONIGHT...NE winds 5 to 10 kt. Waves 2 to 3 ft. .SUN...NE winds 5 to 10 kt. Waves 2 to 3 ft. .SUN NIGHT...NE winds around 5 kt. Waves around 2 ft. Patchy fog after midnight. .MON AND MON NIGHT...E winds 5 to 10 kt. Waves 2 to 3 ft. .TUE...E winds 10 to 15 kt with gusts up to 20 kt. Waves 2 to 3 ft. .TUE NIGHT THROUGH WED NIGHT...N winds 10 to 15 kt. Waves 2 to 3 ft. A chance of showers. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ 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