Coastal Waters Forecast
Issued by NWS Boston, MA
Issued by NWS Boston, MA
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311 FZUS51 KBOX 091705 CWFBOX Coastal Waters Forecast for Massachusetts and Rhode Island National Weather Service Boston/Norton MA 105 PM EDT Thu May 9 2024 Coastal waters from the Merrimack River MA to Watch Hill RI out to 25 NM ANZ200-100600- 105 PM EDT Thu May 9 2024 .Synopsis for Massachusetts and Rhode Island coastal waters... Low pressure system passes well offshore to the southeast. This could bring some light rain to the southern waters late today into tonight. Light rain showers linger into Friday with drying conditions into the weekend and early next week. $$ ANZ250-100600- Coastal waters east of Ipswich Bay and the Stellwagen Bank National Marine Sanctuary- 105 PM EDT Thu May 9 2024 .THIS AFTERNOON...NE winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Wave Detail: N 2 ft at 4 seconds and SE 2 ft at 6 seconds. .TONIGHT...NE winds 10 to 15 kt. Seas 3 to 4 ft. Wave Detail: NE 4 ft at 6 seconds and SE 2 ft at 6 seconds. .FRI...NE winds 10 to 15 kt. Gusts up to 20 kt in the afternoon. Seas 3 to 4 ft. Wave Detail: NE 4 ft at 7 seconds and SE 1 foot at 6 seconds. .FRI NIGHT...NE winds around 10 kt. Seas 3 to 5 ft. Wave Detail: E 3 ft at 7 seconds and E 1 foot at 10 seconds. A chance of showers after midnight. .SAT...NE winds 10 to 15 kt. Seas 4 to 5 ft. Wave Detail: E 3 ft at 7 seconds and SE 1 foot at 8 seconds. A chance of showers in the morning. .SAT NIGHT...NE winds around 10 kt. Seas 3 to 5 ft. Wave Detail: E 5 ft at 8 seconds and NE 2 ft at 5 seconds. .SUN THROUGH MON NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ251-100600- Massachusetts Bay and Ipswich Bay- 105 PM EDT Thu May 9 2024 .THIS AFTERNOON...NE winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: N 1 foot at 4 seconds and SE 1 foot at 6 seconds. .TONIGHT...NE winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: E 3 ft at 6 seconds and E 1 foot at 10 seconds. .FRI...NE winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Wave Detail: E 3 ft at 6 seconds and E 1 foot at 11 seconds. .FRI NIGHT...NE winds 10 to 15 kt. Seas 2 to 4 ft. Wave Detail: E 3 ft at 7 seconds and E 1 foot at 10 seconds. A chance of showers after midnight. .SAT...NE winds 10 to 15 kt. Seas around 3 ft. Wave Detail: E 3 ft at 7 seconds and SE 1 foot at 15 seconds. A chance of showers in the morning. .SAT NIGHT...NE winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: E 3 ft at 7 seconds and SE 1 foot at 8 seconds. .SUN THROUGH MON NIGHT...SW 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. $$ ANZ231-100600- Cape Cod Bay- 105 PM EDT Thu May 9 2024 .THIS AFTERNOON...NE winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft. Wave Detail: N 1 foot at 3 seconds and S 1 foot at 6 seconds. .TONIGHT...NE winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: N 2 ft at 3 seconds and S 1 foot at 6 seconds. .FRI...NE winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Wave Detail: N 2 ft at 4 seconds and S 1 foot at 6 seconds. .FRI NIGHT...NE winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: N 2 ft at 4 seconds and S 1 foot at 7 seconds. A chance of showers after midnight. .SAT...NE winds 10 to 15 kt. Seas around 3 ft. Wave Detail: N 2 ft at 3 seconds and E 2 ft at 8 seconds. A chance of showers in the morning. .SAT NIGHT...NE winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: E 3 ft at 8 seconds and N 1 foot at 4 seconds. .SUN THROUGH MON NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ254-100600- Coastal waters from Provincetown MA to Chatham MA to Nantucket MA out 20 nm- 105 PM EDT Thu May 9 2024 .THIS AFTERNOON...N winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 4 ft. Wave Detail: S 3 ft at 6 seconds and N 2 ft at 4 seconds. .TONIGHT...NE winds 15 to 20 kt. Seas 3 to 5 ft. Wave Detail: N 3 ft at 5 seconds and S 3 ft at 6 seconds. .FRI...NE winds 10 to 15 kt with gusts up to 20 kt. Seas 4 to 5 ft. Wave Detail: NE 4 ft at 7 seconds and S 2 ft at 7 seconds. A chance of showers in the morning. .FRI NIGHT...NE winds 10 to 15 kt. Seas 4 to 5 ft. Wave Detail: NE 4 ft at 7 seconds and S 1 foot at 7 seconds. A chance of showers after midnight. .SAT...NE winds 10 to 15 kt with gusts up to 20 kt. Seas 4 to 5 ft. Wave Detail: E 4 ft at 7 seconds and S 2 ft at 8 seconds. A chance of showers in the morning. .SAT NIGHT...NE winds around 10 kt. Seas 4 to 5 ft. Wave Detail: E 5 ft at 8 seconds and NE 2 ft at 5 seconds. .SUN THROUGH MON NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 5 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. $$ ANZ255-100600- Coastal Waters extending out to 25 nm South of Marthas Vineyard and Nantucket- 105 PM EDT Thu May 9 2024 .THIS AFTERNOON...NE winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Wave Detail: S 3 ft at 6 seconds and N 1 foot at 3 seconds. .TONIGHT...NE winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 4 ft. Wave Detail: N 3 ft at 4 seconds and S 3 ft at 6 seconds. .FRI...NE winds 20 to 25 kt, diminishing to 15 to 20 kt in the afternoon. Seas 3 to 4 ft. Wave Detail: NE 4 ft at 4 seconds and S 2 ft at 7 seconds. A chance of showers. .FRI NIGHT...NE winds 15 to 20 kt. Seas 3 to 5 ft. Wave Detail: NE 4 ft at 5 seconds and S 2 ft at 8 seconds. A chance of showers. .SAT...NE winds 15 to 20 kt. Seas 3 to 5 ft. Wave Detail: NE 4 ft at 5 seconds and E 2 ft at 8 seconds. A chance of showers in the morning. .SAT NIGHT...NE winds 10 to 15 kt. Seas 3 to 5 ft. Wave Detail: E 4 ft at 8 seconds and NE 2 ft at 5 seconds. .SUN THROUGH MON NIGHT...SW winds 10 to 15 kt. Seas 2 to 4 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ256-100600- Coastal Waters from Montauk NY to Marthas Vineyard extending out to 20 nm South of Block Island- 105 PM EDT Thu May 9 2024 .THIS AFTERNOON...NE winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: S 3 ft at 6 seconds and E 1 foot at 10 seconds. .TONIGHT...E winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to 4 ft. Wave Detail: E 3 ft at 4 seconds and S 3 ft at 6 seconds. A chance of showers after midnight. .FRI...NE winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to 5 ft. Wave Detail: NE 4 ft at 5 seconds and S 2 ft at 7 seconds. A chance of showers. .FRI NIGHT...NE winds 15 to 20 kt, diminishing to 10 to 15 kt after midnight. Seas 4 to 5 ft. Wave Detail: NE 4 ft at 5 seconds and S 2 ft at 8 seconds. A chance of showers. .SAT...NE winds 15 to 20 kt, diminishing to 10 to 15 kt in the afternoon. Seas 3 to 5 ft. Wave Detail: NE 3 ft at 5 seconds and S 2 ft at 8 seconds. A chance of showers in the morning. .SAT NIGHT...NE winds 5 to 10 kt. Seas 3 to 4 ft. Wave Detail: E 4 ft at 8 seconds and NE 3 ft at 5 seconds. .SUN THROUGH MON NIGHT...SW winds 10 to 15 kt with gusts up to 20 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. $$ ANZ232-100600- Nantucket Sound- 105 PM EDT Thu May 9 2024 .THIS AFTERNOON...NE winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft. Wave Detail: N 2 ft at 4 seconds and S 1 foot at 6 seconds. .TONIGHT...NE winds 15 to 20 kt. Seas 2 to 3 ft. Wave Detail: NE 2 ft at 3 seconds and SW 1 foot at 6 seconds. .FRI...NE winds 15 to 20 kt. Seas 2 to 3 ft. Wave Detail: NE 3 ft at 4 seconds and S 1 foot at 7 seconds. A chance of showers. .FRI NIGHT...NE winds 10 to 15 kt. Gusts up to 20 kt in the evening. Seas 2 to 3 ft. Wave Detail: NE 2 ft at 4 seconds and S 1 foot at 7 seconds. A chance of showers after midnight. .SAT...NE winds 10 to 15 kt. Gusts up to 20 kt in the morning. Seas 2 to 3 ft. Wave Detail: NE 2 ft at 4 seconds and E 2 ft at 8 seconds. A chance of showers in the morning. .SAT NIGHT...NE winds around 10 kt. Seas 2 to 3 ft. Wave Detail: SE 2 ft at 7 seconds and SE 1 foot at 15 seconds. .SUN THROUGH MON NIGHT...SW winds 10 to 15 kt. Seas around 2 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ233-100600- Vineyard Sound- 105 PM EDT Thu May 9 2024 .THIS AFTERNOON...NE winds 5 to 10 kt. Seas around 2 ft. Wave Detail: SW 2 ft at 6 seconds and NE 1 foot at 2 seconds. .TONIGHT...NE winds 10 to 15 kt, increasing to 15 to 20 kt after midnight. Seas around 2 ft. Wave Detail: SW 2 ft at 6 seconds and NE 1 foot at 3 seconds. A chance of showers after midnight. .FRI...NE winds 15 to 20 kt with gusts up to 25 kt. Seas around 2 ft. Wave Detail: NE 2 ft at 3 seconds and S 1 foot at 7 seconds. A chance of showers. .FRI NIGHT...NE winds 15 to 20 kt, diminishing to 10 to 15 kt after midnight. Seas 2 to 3 ft. Wave Detail: NE 2 ft at 3 seconds and S 1 foot at 7 seconds. A chance of showers after midnight. .SAT...NE winds 15 to 20 kt, diminishing to 10 to 15 kt in the afternoon. Seas around 2 ft. Wave Detail: NE 2 ft at 3 seconds and S 1 foot at 8 seconds. A chance of showers in the morning. .SAT NIGHT...NE winds around 10 kt. Seas around 2 ft. Wave Detail: E 2 ft at 8 seconds and NE 1 foot at 3 seconds. .SUN THROUGH MON NIGHT...SW winds 10 to 15 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. $$ ANZ234-100600- Buzzards Bay- 105 PM EDT Thu May 9 2024 .THIS AFTERNOON...NE winds 10 to 15 kt. Seas around 2 ft. Wave Detail: SW 2 ft at 6 seconds and NE 1 foot at 2 seconds. .TONIGHT...NE winds 10 to 15 kt. Gusts up to 20 kt after midnight. Seas around 2 ft. Wave Detail: SW 2 ft at 6 seconds and NE 1 foot at 2 seconds. A chance of showers after midnight. .FRI...NE winds 15 to 20 kt. Seas around 2 ft. Wave Detail: NE 2 ft at 3 seconds and S 1 foot at 7 seconds. A chance of showers in the morning. .FRI NIGHT...NE winds 15 to 20 kt, diminishing to 10 to 15 kt after midnight. Seas 2 to 3 ft. Wave Detail: NE 2 ft at 3 seconds and S 1 foot at 7 seconds. A chance of showers after midnight. .SAT...NE winds 10 to 15 kt. Gusts up to 20 kt in the morning. Seas 2 to 3 ft. Wave Detail: NE 2 ft at 3 seconds and S 1 foot at 8 seconds. A chance of showers in the morning. .SAT NIGHT...NE winds 5 to 10 kt. Seas around 2 ft. Wave Detail: E 2 ft at 8 seconds and NE 1 foot at 3 seconds. .SUN THROUGH MON NIGHT...SW winds 10 to 15 kt. Seas around 2 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ235-100600- Rhode Island Sound- 105 PM EDT Thu May 9 2024 .THIS AFTERNOON...NE winds 5 to 10 kt. Seas around 2 ft. Wave Detail: S 2 ft at 6 seconds and NE 1 foot at 3 seconds. .TONIGHT...E winds 10 to 15 kt, becoming NE 15 to 20 kt after midnight. Seas 2 to 3 ft. Wave Detail: S 3 ft at 6 seconds and NE 2 ft at 3 seconds. A chance of showers after midnight. .FRI...NE winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 3 ft. Wave Detail: NE 3 ft at 4 seconds and S 2 ft at 7 seconds. A chance of showers. .FRI NIGHT...NE winds 15 to 20 kt, diminishing to 10 to 15 kt after midnight. Seas 2 to 4 ft. Wave Detail: NE 3 ft at 4 seconds and S 1 foot at 7 seconds. A chance of showers after midnight. .SAT...NE winds 15 to 20 kt, diminishing to 10 to 15 kt in the afternoon. Seas around 3 ft. Wave Detail: NE 3 ft at 4 seconds and S 2 ft at 8 seconds. A chance of showers in the morning. .SAT NIGHT...NE winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: NE 2 ft at 4 seconds and SE 2 ft at 8 seconds. .SUN THROUGH MON NIGHT...SW 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. $$ ANZ237-100600- Block Island Sound- 105 PM EDT Thu May 9 2024 .THIS AFTERNOON...E winds 5 to 10 kt. Seas around 2 ft. Wave Detail: S 2 ft at 6 seconds and E 1 foot at 10 seconds. .TONIGHT...E winds 10 to 15 kt, becoming NE 15 to 20 kt after midnight. Seas 2 to 3 ft. Wave Detail: SE 2 ft at 5 seconds and E 1 foot at 10 seconds. A chance of showers after midnight. .FRI...NE winds 15 to 20 kt. Seas 2 to 4 ft. Wave Detail: E 3 ft at 4 seconds and S 2 ft at 7 seconds. A chance of showers. .FRI NIGHT...NE winds 10 to 15 kt. Seas 3 to 4 ft. Wave Detail: E 3 ft at 5 seconds and S 1 foot at 7 seconds. A chance of showers after midnight. .SAT...NE winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: E 2 ft at 5 seconds and S 2 ft at 8 seconds. A chance of showers in the morning. .SAT NIGHT...E winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: E 2 ft at 5 seconds and SE 2 ft at 8 seconds. .SUN THROUGH MON NIGHT...SW winds 10 to 15 kt. Seas 2 to 3 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ230-100600- Boston Harbor- 105 PM EDT Thu May 9 2024 .THIS AFTERNOON...E winds 10 to 15 kt. Waves 1 foot or less. .TONIGHT...E winds 10 to 15 kt. Waves 2 to 3 ft. .FRI...NE winds 15 to 20 kt. Waves around 2 ft. .FRI NIGHT...NE winds 10 to 15 kt. Waves around 2 ft. A chance of showers after midnight. .SAT...NE winds 10 to 15 kt. Waves around 2 ft. A chance of showers in the morning. .SAT NIGHT...E winds 10 to 15 kt, becoming NE 5 to 10 kt after midnight. Waves around 2 ft in the evening, then 1 foot or less. .SUN THROUGH MON 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. $$ ANZ236-100600- Narragansett Bay- 105 PM EDT Thu May 9 2024 .THIS AFTERNOON...N winds 5 to 10 kt. Waves around 2 ft. .TONIGHT...NE winds 10 to 15 kt. Waves around 2 ft. A chance of showers after midnight. .FRI...NE winds 10 to 15 kt with gusts up to 20 kt. Waves around 2 ft. A chance of showers in the morning. .FRI NIGHT...NE winds 10 to 15 kt. Gusts up to 20 kt in the evening. Waves 2 to 3 ft. A chance of showers after midnight. .SAT...NE winds 10 to 15 kt. Waves 2 to 3 ft. A chance of showers in the morning. .SAT NIGHT...NE winds 5 to 10 kt, becoming N after midnight. Waves 2 to 3 ft. .SUN THROUGH MON NIGHT...SW winds 10 to 15 kt. Waves 2 to 3 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ 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