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Coastal Waters Forecast
Issued by NWS Boston, MA
Issued by NWS Boston, MA
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332 FZUS51 KBOX 041704 CWFBOX Coastal Waters Forecast for Massachusetts and Rhode Island National Weather Service Boston/Norton MA 104 PM EDT Thu Jul 4 2024 Coastal waters from the Merrimack River MA to Watch Hill RI out to 25 NM ANZ200-050600- 104 PM EDT Thu Jul 4 2024 .Synopsis for Massachusetts and Rhode Island coastal waters... High pressure moves east of the waters on Independence Day, with gusty southwest winds and a low chance for an isolated shower or thunderstorm both today and Friday. Unsettled weather returns this weekend with periods of rain and thunderstorms Saturday and Saturday night with the passage of a weak cold front. Drier conditions Sunday into Monday, more unsettled weather by mid next week. $$ ANZ250-050600- Coastal waters east of Ipswich Bay and the Stellwagen Bank National Marine Sanctuary- 104 PM EDT Thu Jul 4 2024 .THIS AFTERNOON...S winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 3 ft. Wave Detail: S 2 ft at 3 seconds and E 2 ft at 8 seconds. .TONIGHT...S winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 4 ft. Wave Detail: S 2 ft at 4 seconds and E 2 ft at 8 seconds. A chance of showers after midnight with vsby 1 to 3 NM. .FRI...S winds 10 to 15 kt. Gusts up to 20 kt in the afternoon. Seas 2 to 3 ft. Wave Detail: SW 2 ft at 3 seconds and E 2 ft at 8 seconds. A chance of showers. Patchy fog in the morning with vsby 1 to 3 NM. .FRI NIGHT...S winds around 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Wave Detail: E 3 ft at 8 seconds and S 2 ft at 4 seconds. Patchy fog. Vsby 1 to 3 NM. .SAT...S winds 10 to 15 kt, increasing to 15 to 20 kt in the afternoon. Gusts up to 25 kt. Seas 3 to 5 ft. Wave Detail: S 3 ft at 4 seconds and E 3 ft at 8 seconds. A chance of showers. Patchy fog in the morning with vsby 1 to 3 NM. .SAT NIGHT...S winds 15 to 20 kt, becoming SW 10 to 15 kt after midnight. Gusts up to 25 kt. Seas 3 to 5 ft. Wave Detail: S 3 ft at 4 seconds and SE 3 ft at 7 seconds. A chance of showers. .SUN...SW winds around 10 kt. Seas 2 to 4 ft. A chance of showers. .SUN NIGHT THROUGH MON NIGHT...S winds 5 to 10 kt. Seas 2 to 3 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ251-050600- Massachusetts Bay and Ipswich Bay- 104 PM EDT Thu Jul 4 2024 .THIS AFTERNOON...S winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft. Wave Detail: S 2 ft at 3 seconds and E 2 ft at 8 seconds. .TONIGHT...S winds 10 to 15 kt with gusts up to 20 kt, becoming SW 5 to 10 kt after midnight. Seas 2 to 3 ft. Wave Detail: S 2 ft at 3 seconds and E 2 ft at 8 seconds. A chance of showers after midnight with vsby 1 to 3 NM. .FRI...S winds 5 to 10 kt, increasing to 10 to 15 kt in the afternoon. Seas around 2 ft. Wave Detail: E 2 ft at 8 seconds and S 1 foot at 3 seconds. A chance of showers. Patchy fog in the morning with vsby 1 to 3 NM. .FRI NIGHT...S winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: E 3 ft at 8 seconds and S 2 ft at 4 seconds. Patchy fog. A chance of showers after midnight. Vsby 1 to 3 NM. .SAT...S winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Wave Detail: E 3 ft at 8 seconds and S 2 ft at 4 seconds. A chance of showers. Patchy fog in the morning with vsby 1 to 3 NM. .SAT NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Wave Detail: S 2 ft at 4 seconds and E 2 ft at 8 seconds. A chance of showers. .SUN THROUGH MON 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. $$ ANZ231-050600- Cape Cod Bay- 104 PM EDT Thu Jul 4 2024 .THIS AFTERNOON...SW winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft. Wave Detail: SW 1 foot at 3 seconds and E 1 foot at 8 seconds. .TONIGHT...SW winds 10 to 15 kt. Gusts up to 20 kt in the evening. Seas around 2 ft. Wave Detail: E 2 ft at 8 seconds and SW 1 foot at 3 seconds. A chance of showers after midnight. .FRI...S winds 10 to 15 kt. Gusts up to 20 kt in the afternoon. Seas around 2 ft in the morning, then 1 foot or less. Wave Detail: E 2 ft at 8 seconds and SW 1 foot at 2 seconds, becoming S 1 foot at 2 seconds and E 1 foot at 8 seconds. A chance of showers. .FRI NIGHT...S winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft. Wave Detail: E 2 ft at 8 seconds and S 1 foot at 2 seconds. Patchy fog. Vsby 1 to 3 NM. .SAT AND SAT NIGHT...SW winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 4 ft. Wave Detail: S 2 ft at 3 seconds and E 2 ft at 8 seconds. A chance of showers in the morning. A chance of showers through the night. .SUN...SW winds around 10 kt. Seas 2 to 3 ft. Wave Detail: SW 1 foot at 3 seconds and SE 1 foot at 8 seconds. A chance of showers. .SUN NIGHT THROUGH MON NIGHT...SW winds 5 to 10 kt. Seas around 2 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ254-050600- Coastal waters from Provincetown MA to Chatham MA to Nantucket MA out 20 nm- 104 PM EDT Thu Jul 4 2024 .THIS AFTERNOON...S winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 4 ft. Wave Detail: E 3 ft at 9 seconds and S 2 ft at 3 seconds. .TONIGHT...S winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 4 ft. Wave Detail: E 3 ft at 8 seconds and S 2 ft at 4 seconds. A chance of showers after midnight. .FRI...S winds 10 to 15 kt. Gusts up to 20 kt in the afternoon. Seas 2 to 4 ft. Wave Detail: E 3 ft at 8 seconds and S 2 ft at 4 seconds. A chance of showers in the morning. .FRI NIGHT...S winds around 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. Wave Detail: S 3 ft at 4 seconds and E 2 ft at 8 seconds. Patchy fog. Vsby 1 to 3 NM. .SAT...S winds around 15 kt with gusts up to 25 kt. Seas 3 to 5 ft. Wave Detail: S 4 ft at 5 seconds and E 2 ft at 8 seconds. .SAT NIGHT...S winds 15 to 20 kt with gusts up to 25 kt. Seas 4 to 5 ft. Wave Detail: S 4 ft at 5 seconds and SE 2 ft at 8 seconds. A chance of showers. .SUN...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 5 ft. A chance of showers. .SUN NIGHT AND MON...SW winds 10 to 15 kt, diminishing to 5 to 10 kt. Seas 2 to 4 ft. .MON 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. $$ ANZ255-050600- Coastal Waters extending out to 25 nm South of Marthas Vineyard and Nantucket- 104 PM EDT Thu Jul 4 2024 .THIS AFTERNOON...S winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Wave Detail: SW 2 ft at 4 seconds and E 2 ft at 9 seconds. .TONIGHT...S winds 10 to 15 kt. Gusts up to 20 kt in the evening. Seas 3 to 4 ft. Wave Detail: E 3 ft at 9 seconds and SW 2 ft at 4 seconds. A chance of showers after midnight. .FRI...S winds 10 to 15 kt. Gusts up to 20 kt in the afternoon. Seas 2 to 4 ft. Wave Detail: SW 3 ft at 5 seconds and E 3 ft at 8 seconds. Patchy fog in the morning. A chance of showers in the morning. .FRI NIGHT...S winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. Wave Detail: S 4 ft at 5 seconds and E 2 ft at 8 seconds. Patchy fog. Vsby 1 to 3 NM in the evening. .SAT...S winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to 5 ft. Wave Detail: SW 5 ft at 7 seconds and E 2 ft at 9 seconds. .SAT NIGHT...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 4 to 5 ft. Wave Detail: S 5 ft at 8 seconds and SE 2 ft at 9 seconds. A chance of showers after midnight. .SUN...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 5 ft. A chance of showers. .SUN NIGHT THROUGH MON NIGHT...SW winds 10 to 15 kt. Seas 2 to 4 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ256-050600- Coastal Waters from Montauk NY to Marthas Vineyard extending out to 20 nm South of Block Island- 104 PM EDT Thu Jul 4 2024 .THIS AFTERNOON...SW winds 10 to 15 kt with gusts up to 20 kt. Seas around 3 ft. Wave Detail: SW 2 ft at 4 seconds and E 2 ft at 9 seconds. .TONIGHT...SW winds 10 to 15 kt. Gusts up to 20 kt in the evening. Seas 3 to 4 ft. Wave Detail: E 3 ft at 9 seconds and SW 2 ft at 4 seconds. A chance of showers after midnight. .FRI...S winds 10 to 15 kt. Seas 2 to 4 ft. Wave Detail: SW 3 ft at 5 seconds and E 3 ft at 8 seconds. Patchy fog in the morning. A chance of showers in the morning with vsby 1 to 3 NM. .FRI NIGHT...S winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 4 ft. Wave Detail: S 4 ft at 6 seconds and E 2 ft at 8 seconds. Patchy fog. Vsby 1 to 3 NM in the evening. .SAT...S winds 15 to 20 kt with gusts up to 25 kt. Seas 4 to 5 ft. Wave Detail: S 5 ft at 7 seconds and E 2 ft at 8 seconds. Patchy fog in the morning. A chance of showers in the morning. .SAT NIGHT...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 5 to 6 ft. Wave Detail: S 6 ft at 8 seconds and SE 2 ft at 9 seconds. A chance of showers. .SUN...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 4 to 6 ft. A chance of showers. .SUN NIGHT THROUGH MON 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. $$ ANZ232-050600- Nantucket Sound- 104 PM EDT Thu Jul 4 2024 .THIS AFTERNOON...SW winds around 15 kt with gusts up to 20 kt. Seas around 2 ft. Wave Detail: SW 2 ft at 3 seconds and E 1 foot at 8 seconds. .TONIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft. Wave Detail: SW 2 ft at 4 seconds and E 1 foot at 9 seconds. A chance of showers after midnight. .FRI...S winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft. Wave Detail: SW 2 ft at 3 seconds and E 1 foot at 8 seconds. A chance of showers in the morning. .FRI NIGHT...S winds around 15 kt with gusts up to 25 kt. Seas 2 to 3 ft. Wave Detail: S 2 ft at 4 seconds and E 1 foot at 8 seconds. Patchy fog. Vsby 1 to 3 NM. .SAT...S winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 4 ft. Wave Detail: S 3 ft at 4 seconds and E 1 foot at 7 seconds. .SAT NIGHT...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to 4 ft. Wave Detail: SW 3 ft at 4 seconds and E 1 foot at 8 seconds. A chance of showers. .SUN...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. A chance of showers. .SUN NIGHT THROUGH MON NIGHT...SW winds 10 to 15 kt. Seas 2 to 3 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ233-050600- Vineyard Sound- 104 PM EDT Thu Jul 4 2024 .THIS AFTERNOON...SW winds around 15 kt with gusts up to 20 kt. Seas around 2 ft. Wave Detail: SW 2 ft at 4 seconds and SE 1 foot at 8 seconds. .TONIGHT...SW winds 10 to 15 kt. Gusts up to 20 kt in the evening. Seas around 2 ft. Wave Detail: SW 2 ft at 4 seconds and E 1 foot at 9 seconds. A chance of showers after midnight. .FRI...S winds around 10 kt. Gusts up to 20 kt in the afternoon. Seas around 2 ft. Wave Detail: SW 2 ft at 5 seconds and E 1 foot at 8 seconds. Patchy fog in the morning. A chance of showers in the morning. .FRI NIGHT...S 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 E 1 foot at 8 seconds. Patchy fog. Vsby 1 to 3 NM in the evening. .SAT...S winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 4 ft. Wave Detail: SW 4 ft at 6 seconds and E 1 foot at 8 seconds. Patchy fog in the morning. .SAT NIGHT...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to 4 ft. Wave Detail: S 4 ft at 8 seconds. A chance of showers. .SUN...SW winds 10 to 15 kt. Seas 2 to 4 ft. A chance of showers. .SUN NIGHT THROUGH MON 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. $$ ANZ234-050600- Buzzards Bay- 104 PM EDT Thu Jul 4 2024 .THIS AFTERNOON...SW winds around 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Wave Detail: SW 2 ft at 4 seconds and SE 1 foot at 8 seconds. .TONIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft. Wave Detail: SW 2 ft at 4 seconds and E 1 foot at 9 seconds. A chance of showers after midnight. .FRI...S winds around 10 kt. Gusts up to 20 kt in the afternoon. Seas around 2 ft in the morning, then 1 foot or less. Wave Detail: SW 1 foot at 5 seconds and E 1 foot at 8 seconds. Patchy fog in the morning. A chance of showers in the morning. .FRI NIGHT...S winds 10 to 15 kt. Gusts up to 20 kt after midnight. Seas around 2 ft. Wave Detail: SW 2 ft at 5 seconds and E 1 foot at 8 seconds. Patchy fog. Vsby 1 to 3 NM in the evening. .SAT AND SAT NIGHT...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 4 ft. Wave Detail: SW 3 ft at 5 seconds and E 1 foot at 8 seconds. A chance of showers in the morning. A chance of showers through the night. .SUN...SW winds around 10 kt. Seas 2 to 3 ft. Wave Detail: SW 3 ft at 7 seconds and SE 1 foot at 8 seconds. A chance of showers. .SUN NIGHT THROUGH MON NIGHT...SW winds 10 to 15 kt. Seas 2 to 3 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ235-050600- Rhode Island Sound- 104 PM EDT Thu Jul 4 2024 .THIS AFTERNOON...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Wave Detail: SW 2 ft at 4 seconds and SE 1 foot at 8 seconds. .TONIGHT...SW winds 10 to 15 kt. Gusts up to 20 kt in the evening. Seas 2 to 3 ft. Wave Detail: SW 2 ft at 4 seconds and SE 2 ft at 9 seconds. A chance of showers after midnight. .FRI...S winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: S 3 ft at 5 seconds and SE 2 ft at 8 seconds. Patchy fog in the morning. A chance of showers in the morning with vsby 1 to 3 NM. .FRI NIGHT...S winds 10 to 15 kt. Gusts up to 20 kt after midnight. Seas 2 to 3 ft. Wave Detail: S 3 ft at 5 seconds and S 2 ft at 11 seconds. Patchy fog. A chance of showers after midnight. Vsby 1 to 3 NM in the evening. .SAT...S winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to 5 ft. Wave Detail: S 5 ft at 7 seconds and SE 2 ft at 10 seconds. A chance of showers. Patchy fog in the morning. .SAT NIGHT...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 4 to 5 ft. Wave Detail: S 5 ft at 8 seconds and SE 1 foot at 9 seconds. A chance of showers. .SUN...SW winds 10 to 15 kt. Seas 3 to 5 ft. A chance of showers. .SUN NIGHT AND MON...SW winds 5 to 10 kt. Seas 2 to 4 ft. .MON 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. $$ ANZ237-050600- Block Island Sound- 104 PM EDT Thu Jul 4 2024 .THIS AFTERNOON...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Wave Detail: SW 2 ft at 3 seconds and SE 2 ft at 8 seconds. .TONIGHT...SW winds 10 to 15 kt. Gusts up to 20 kt in the evening. Seas 2 to 3 ft. Wave Detail: SW 2 ft at 4 seconds and SE 2 ft at 9 seconds. A chance of showers. Patchy fog after midnight with vsby 1 to 3 NM. .FRI...S winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: S 2 ft at 5 seconds and E 2 ft at 9 seconds. Patchy fog in the morning. A chance of showers in the morning with vsby 1 to 3 NM. .FRI NIGHT...S winds 10 to 15 kt. Gusts up to 20 kt after midnight. Seas 2 to 3 ft. Wave Detail: SE 3 ft at 7 seconds and SE 1 foot at 11 seconds. Patchy fog. A chance of showers after midnight. Vsby 1 to 3 NM in the evening. .SAT...S winds 10 to 15 kt with gusts up to 25 kt. Seas 3 to 4 ft. Wave Detail: S 4 ft at 7 seconds and E 2 ft at 8 seconds. A chance of showers. Patchy fog in the morning. .SAT NIGHT...SW winds 10 to 15 kt with gusts up to 25 kt. Seas 3 to 5 ft. Wave Detail: SW 4 ft at 7 seconds and SE 2 ft at 9 seconds. A chance of showers. .SUN...SW winds around 10 kt. Seas 3 to 4 ft. A chance of showers. .SUN NIGHT THROUGH MON NIGHT...SW winds 5 to 10 kt. Seas 2 to 3 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ230-050600- Boston Harbor- 104 PM EDT Thu Jul 4 2024 .THIS AFTERNOON...SW winds around 10 kt. Waves 1 foot or less. .TONIGHT...SW winds 5 to 10 kt. Waves 1 foot or less. Patchy fog after midnight. A chance of showers after midnight. .FRI...S winds 5 to 10 kt. Waves 1 foot or less. A chance of showers. Patchy fog in the morning with vsby 1 to 3 NM. .FRI NIGHT...S winds around 10 kt. Waves 1 foot or less. Patchy fog after midnight. A chance of showers after midnight. .SAT...S winds 10 to 15 kt with gusts up to 25 kt. Waves around 2 ft. A chance of showers. Patchy fog in the morning with vsby 1 to 3 NM. .SAT NIGHT...SW winds 10 to 15 kt. Gusts up to 20 kt in the evening. Waves around 2 ft. A chance of showers. .SUN THROUGH MON 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. $$ ANZ236-050600- Narragansett Bay- 104 PM EDT Thu Jul 4 2024 .THIS AFTERNOON...SW winds 10 to 15 kt with gusts up to 20 kt. Waves around 2 ft. .TONIGHT...SW winds 5 to 10 kt. Gusts up to 20 kt in the evening. Waves around 2 ft. Patchy fog after midnight. A chance of showers after midnight. .FRI...S winds 5 to 10 kt. Waves around 2 ft. A chance of showers. Patchy fog in the morning with vsby 1 to 3 NM. .FRI NIGHT...S winds around 10 kt. Waves 2 to 3 ft. Patchy fog. A chance of showers after midnight. Vsby 1 to 3 NM in the evening. .SAT...S winds 10 to 15 kt with gusts up to 25 kt. Waves 2 to 4 ft. A chance of showers. Patchy fog in the morning. .SAT NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Waves 2 to 4 ft. A chance of showers. .SUN...SW winds 5 to 10 kt. Waves 2 to 4 ft. A chance of showers. .SUN NIGHT THROUGH MON NIGHT...SW winds 5 to 10 kt. Waves 2 to 3 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ 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