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Coastal Waters Forecast
Issued by NWS Boston, MA
Issued by NWS Boston, MA
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000 FZUS51 KBOX 172002 CWFBOX Coastal Waters Forecast for Massachusetts and Rhode Island National Weather Service Boston/Norton MA 401 PM EDT Wed Apr 17 2024 Coastal waters from the Merrimack River MA to Watch Hill RI out to 25 NM ANZ200-180900- 401 PM EDT Wed Apr 17 2024 .Synopsis for Massachusetts and Rhode Island coastal waters... High pres shifts into the Gulf of ME this evening. A warm front lifts toward the southern waters on Thu, while high pres remains planted over the Gulf of ME/Nova Scotia. The high nudges back in for much of Fri before a cold front sweeps through late Fri into Sat. $$ ANZ250-180900- Coastal waters east of Ipswich Bay and the Stellwagen Bank National Marine Sanctuary- 401 PM EDT Wed Apr 17 2024 .TONIGHT...SE winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: SE 2 ft at 8 seconds and N 1 ft at 4 seconds. .THU...E winds around 10 kt. Seas 2 to 3 ft. Wave Detail: NE 2 ft at 4 seconds and SE 2 ft at 8 seconds. .THU NIGHT...E winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: E 2 ft at 4 seconds and E 2 ft at 12 seconds. .FRI...E winds 5 to 10 kt, becoming SE 10 to 15 kt in the afternoon. Seas 2 to 3 ft. Wave Detail: E 2 ft at 5 seconds and E 2 ft at 11 seconds. .FRI NIGHT AND SAT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. Wave Detail: S 3 ft at 4 seconds and E 2 ft at 11 seconds. A chance of showers. .SAT NIGHT...W winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 4 ft. Wave Detail: W 3 ft at 4 seconds and SE 2 ft at 5 seconds. .SUN THROUGH MON...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. .MON NIGHT...S winds around 10 kt. Seas around 2 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ251-180900- Massachusetts Bay and Ipswich Bay- 401 PM EDT Wed Apr 17 2024 .TONIGHT...SE winds 5 to 10 kt. Seas around 2 ft. Wave Detail: E 2 ft at 3 seconds and E 2 ft at 9 seconds. .THU...E winds around 10 kt. Seas around 2 ft. Wave Detail: E 2 ft at 4 seconds and E 2 ft at 8 seconds. .THU NIGHT...E winds 5 to 10 kt. Seas around 2 ft. Wave Detail: E 2 ft at 4 seconds and SE 1 ft at 8 seconds. .FRI...E winds 5 to 10 kt, becoming SE 10 to 15 kt with gusts up to 20 kt in the afternoon. Seas around 2 ft. Wave Detail: SE 2 ft at 5 seconds and E 1 ft at 11 seconds. .FRI NIGHT AND SAT...SW winds 15 to 20 kt. Seas 2 to 3 ft. Wave Detail: S 3 ft at 4 seconds and SE 2 ft at 4 seconds. A chance of showers. .SAT NIGHT...W winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft. Wave Detail: W 2 ft at 3 seconds and SE 1 ft at 5 seconds. .SUN THROUGH MON NIGHT...S winds 10 to 15 kt with gusts up to 20 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. $$ ANZ231-180900- Cape Cod Bay- 401 PM EDT Wed Apr 17 2024 .TONIGHT...SE winds 5 to 10 kt. Seas around 2 ft this evening, then 1 foot or less. Wave Detail: E 1 ft at 3 seconds and N 1 ft at 3 seconds, becoming NW 1 ft at 3 seconds and E 1 ft at 4 seconds. .THU...E winds around 10 kt. Seas 1 foot or less, then around 2 ft in the afternoon. Wave Detail: E 1 ft at 3 seconds and SE 1 ft at 8 seconds, becoming E 1 ft at 2 seconds and SE 1 ft at 7 seconds. .THU NIGHT...E winds 5 to 10 kt. Seas around 2 ft. Wave Detail: E 1 ft at 3 seconds and SE 1 ft at 7 seconds. .FRI...SE winds 5 to 10 kt. Seas around 2 ft. Wave Detail: SE 2 ft at 6 seconds and E 1 ft at 3 seconds. .FRI NIGHT AND SAT...SW winds around 10 kt. Seas around 2 ft. Wave Detail: S 2 ft at 4 seconds and SE 1 ft at 3 seconds. A chance of showers through the day. .SAT NIGHT...W winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft. Wave Detail: W 2 ft at 3 seconds and SE 1 ft at 6 seconds. .SUN THROUGH MON NIGHT...S winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ254-180900- Coastal waters from Provincetown MA to Chatham MA to Nantucket MA out 20 nm- 401 PM EDT Wed Apr 17 2024 .TONIGHT...SE winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: SE 3 ft at 8 seconds and N 1 ft at 4 seconds. .THU...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 SE 2 ft at 7 seconds. .THU NIGHT...E winds 10 to 15 kt, diminishing to 5 to 10 kt after midnight. Seas 2 to 4 ft. Wave Detail: E 2 ft at 4 seconds and S 2 ft at 7 seconds. .FRI...E winds around 10 kt. Seas 3 to 4 ft. Wave Detail: E 2 ft at 5 seconds and E 2 ft at 11 seconds. .FRI NIGHT...S winds around 10 kt. Seas around 3 ft. Wave Detail: SE 3 ft at 5 seconds and E 2 ft at 11 seconds. .SAT...SW winds around 10 kt. Seas around 3 ft. Wave Detail: S 3 ft at 4 seconds and E 2 ft at 11 seconds. A chance of showers. .SAT NIGHT...W winds 10 to 15 kt with gusts up to 25 kt. Seas 3 to 4 ft. .SUN THROUGH MON...W winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. .MON NIGHT...S winds around 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. $$ ANZ255-180900- Coastal Waters extending out to 25 nm South of Marthas Vineyard and Nantucket- 401 PM EDT Wed Apr 17 2024 .TONIGHT...E winds 10 to 15 kt. Gusts up to 20 kt after midnight. Seas 2 to 3 ft. Wave Detail: S 3 ft at 7 seconds and E 1 ft at 3 seconds. A slight chance of showers. .THU...E winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 4 ft. Wave Detail: E 3 ft at 3 seconds and SE 2 ft at 7 seconds. .THU NIGHT...E winds around 15 kt with gusts up to 20 kt. Seas 3 to 4 ft. Wave Detail: SE 3 ft at 5 seconds and SE 1 ft at 12 seconds. .FRI...E winds 10 to 15 kt. Seas 3 to 4 ft. Wave Detail: SE 4 ft at 7 seconds and E 1 ft at 4 seconds. .FRI NIGHT...SE winds 10 to 15 kt. Seas 2 to 4 ft. Wave Detail: SE 4 ft at 7 seconds and E 1 ft at 4 seconds. .SAT...SW winds 10 to 15 kt. Gusts up to 20 kt in the afternoon. Seas 2 to 3 ft. Wave Detail: SE 3 ft at 6 seconds and W 2 ft at 4 seconds. A chance of showers. .SAT NIGHT...W winds around 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. .SUN THROUGH MON NIGHT...S winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ256-180900- Coastal Waters from Montauk NY to Marthas Vineyard extending out to 20 nm South of Block Island- 401 PM EDT Wed Apr 17 2024 ...SMALL CRAFT ADVISORY IN EFFECT FROM LATE TONIGHT THROUGH THURSDAY EVENING... .TONIGHT...SE winds 10 to 15 kt. Gusts up to 20 kt after midnight. Seas 2 to 3 ft. Wave Detail: SE 3 ft at 8 seconds and SE 2 ft at 3 seconds. A chance of showers this evening, then showers likely after midnight. Patchy fog after midnight. .THU...E winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to 4 ft. Wave Detail: SE 4 ft at 5 seconds and SE 1 ft at 14 seconds. A chance of showers in the morning. .THU NIGHT...E winds around 15 kt with gusts up to 20 kt. Seas 3 to 5 ft. Wave Detail: E 4 ft at 6 seconds and SE 1 ft at 12 seconds. .FRI...E winds 10 to 15 kt. Seas 3 to 5 ft. Wave Detail: SE 4 ft at 7 seconds and NE 1 ft at 3 seconds. .FRI NIGHT AND SAT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 4 ft. Wave Detail: SE 4 ft at 7 seconds and W 2 ft at 4 seconds. A chance of showers through the day. .SAT NIGHT...W winds 10 to 15 kt with gusts up to 20 kt. Seas around 3 ft. Wave Detail: W 3 ft at 4 seconds and SE 3 ft at 7 seconds. .SUN THROUGH MON NIGHT...S 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. $$ ANZ232-180900- Nantucket Sound- 401 PM EDT Wed Apr 17 2024 .TONIGHT...SE winds 5 to 10 kt. Seas around 2 ft. Wave Detail: E 1 ft at 2 seconds and N 1 ft at 3 seconds. .THU...E winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft. Wave Detail: E 2 ft at 3 seconds and SE 1 ft at 7 seconds. .THU NIGHT...E winds 10 to 15 kt. Gusts up to 20 kt in the evening. Seas around 2 ft. Wave Detail: E 2 ft at 3 seconds and S 1 ft at 6 seconds. .FRI...E winds around 10 kt. Seas 2 to 3 ft. Wave Detail: SE 2 ft at 5 seconds and E 1 ft at 12 seconds. .FRI NIGHT...S winds around 10 kt. Seas around 2 ft. Wave Detail: S 2 ft at 4 seconds and E 2 ft at 4 seconds. A chance of showers after midnight. .SAT...SW winds 10 to 15 kt. Gusts up to 20 kt in the afternoon. Seas around 2 ft. Wave Detail: SW 2 ft at 4 seconds and E 1 ft at 5 seconds. A chance of showers in the morning. .SAT NIGHT...W winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft. .SUN THROUGH MON NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ233-180900- Vineyard Sound- 401 PM EDT Wed Apr 17 2024 .TONIGHT...SE winds 5 to 10 kt. Seas around 2 ft. Wave Detail: E 1 ft at 3 seconds and S 1 ft at 7 seconds. A slight chance of showers. .THU...E winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft. Wave Detail: E 2 ft at 3 seconds and SE 2 ft at 6 seconds. .THU NIGHT...E winds 10 to 15 kt. Gusts up to 20 kt in the evening. Seas 2 to 3 ft. Wave Detail: E 2 ft at 3 seconds and SE 2 ft at 6 seconds. .FRI...E winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: SE 2 ft at 7 seconds and E 1 ft at 2 seconds. .FRI NIGHT AND SAT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft. Wave Detail: S 2 ft at 5 seconds and SE 1 ft at 3 seconds. A chance of showers through the day. .SAT NIGHT...W winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft. Wave Detail: W 2 ft at 4 seconds and S 2 ft at 7 seconds. .SUN THROUGH MON NIGHT...SW winds 10 to 15 kt with gusts up to 20 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. $$ ANZ234-180900- Buzzards Bay- 401 PM EDT Wed Apr 17 2024 .TONIGHT...SE winds 5 to 10 kt. Seas around 2 ft this evening, then 1 foot or less. Wave Detail: SW 1 ft at 2 seconds and E 1 ft at 2 seconds, becoming E 1 ft at 2 seconds and S 1 ft at 7 seconds. A slight chance of showers after midnight. .THU...E winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft. Wave Detail: E 2 ft at 3 seconds and S 1 ft at 7 seconds. .THU NIGHT...E winds 10 to 15 kt, diminishing to 5 to 10 kt after midnight. Seas around 2 ft. Wave Detail: E 2 ft at 3 seconds and SE 2 ft at 6 seconds. .FRI...E winds 5 to 10 kt, becoming SE 10 to 15 kt in the afternoon. Seas around 2 ft. Wave Detail: SE 2 ft at 7 seconds and E 1 ft at 2 seconds. .FRI NIGHT AND SAT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft. Wave Detail: S 2 ft at 4 seconds and SE 1 ft at 3 seconds. A chance of showers through the day. .SAT NIGHT...W winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft. Wave Detail: SW 2 ft at 5 seconds and E 1 ft at 5 seconds. .SUN THROUGH MON NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ235-180900- Rhode Island Sound- 401 PM EDT Wed Apr 17 2024 .TONIGHT...SE winds 10 to 15 kt. Gusts up to 20 kt after midnight. Seas 2 to 3 ft. Wave Detail: S 3 ft at 8 seconds and SE 1 ft at 3 seconds. A chance of showers. .THU...E winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 3 ft. Wave Detail: SE 3 ft at 5 seconds and SE 1 ft at 14 seconds. A chance of showers in the morning. .THU NIGHT...E winds 10 to 15 kt. Gusts up to 20 kt in the evening. Seas 2 to 4 ft. Wave Detail: SE 4 ft at 7 seconds and E 2 ft at 4 seconds. .FRI...E winds 10 to 15 kt. Seas 2 to 4 ft. Wave Detail: SE 3 ft at 7 seconds and NE 1 ft at 3 seconds. .FRI NIGHT AND SAT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Wave Detail: SE 3 ft at 7 seconds and SW 2 ft at 4 seconds. A chance of showers through the day. .SAT NIGHT...W winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Wave Detail: W 3 ft at 4 seconds and SE 2 ft at 7 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. $$ ANZ237-180900- Block Island Sound- 401 PM EDT Wed Apr 17 2024 ...SMALL CRAFT ADVISORY IN EFFECT FROM LATE TONIGHT THROUGH THURSDAY AFTERNOON... .TONIGHT...SE winds 10 to 15 kt. Gusts up to 20 kt after midnight. Seas around 2 ft. Wave Detail: S 2 ft at 8 seconds and SE 1 ft at 3 seconds. Showers likely. Patchy fog after midnight. .THU...E winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 3 ft. Wave Detail: E 3 ft at 4 seconds and SE 3 ft at 7 seconds. A chance of showers. .THU NIGHT...NE winds 10 to 15 kt. Gusts up to 20 kt in the evening. Seas 2 to 4 ft. Wave Detail: E 4 ft at 6 seconds and SE 1 ft at 13 seconds. A chance of showers in the evening. .FRI...E winds 10 to 15 kt. Seas 2 to 4 ft. Wave Detail: SE 4 ft at 7 seconds and E 1 ft at 4 seconds. .FRI NIGHT AND SAT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Wave Detail: SE 3 ft at 7 seconds and W 2 ft at 3 seconds. A chance of showers through the day. .SAT NIGHT...W winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Wave Detail: W 2 ft at 4 seconds and SE 2 ft at 7 seconds. .SUN THROUGH MON NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ230-180900- Boston Harbor- 401 PM EDT Wed Apr 17 2024 .TONIGHT...SE winds 5 to 10 kt. Waves 1 foot or less. .THU...E winds 10 to 15 kt. Waves 1 foot or less. .THU NIGHT...E winds 5 to 10 kt. Waves 1 foot or less. .FRI...E winds 5 to 10 kt, becoming SE 15 to 20 kt in the afternoon. Waves 1 foot or less, then around 2 ft in the afternoon. .FRI NIGHT AND SAT...W winds 15 to 20 kt. Waves around 2 ft. A chance of showers. .SAT NIGHT...W winds 10 to 15 kt with gusts up to 20 kt. Waves around 2 ft. .SUN THROUGH MON NIGHT...SW winds 10 to 15 kt with gusts up to 20 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. $$ ANZ236-180900- Narragansett Bay- 401 PM EDT Wed Apr 17 2024 .TONIGHT...SE winds 5 to 10 kt. Waves around 2 ft. A chance of showers. .THU...E winds 10 to 15 kt with gusts up to 20 kt. Waves around 2 ft. .THU NIGHT...NE winds 5 to 10 kt. Waves around 2 ft. A chance of showers in the evening. .FRI...E winds 5 to 10 kt, becoming SE 10 to 15 kt with gusts up to 20 kt in the afternoon. Waves 2 to 3 ft. .FRI NIGHT AND SAT...SW winds 10 to 15 kt with gusts up to 20 kt. Waves 2 to 3 ft. A chance of showers through the day. .SAT NIGHT...W winds 10 to 15 kt with gusts up to 20 kt. Waves around 2 ft. .SUN THROUGH MON NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Waves around 2 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ 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
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