FZUS51 KBOX 032003 CWFBOX Coastal Waters Forecast for Massachusetts and Rhode Island National Weather Service Boston/Norton MA 403 PM EDT Thu Oct 3 2024 Coastal waters from the Merrimack River MA to Watch Hill RI out to 25 NM ANZ200-040900- 403 PM EDT Thu Oct 3 2024 .Synopsis for Massachusetts and Rhode Island coastal waters... High pres keeps tranquil boating conditions through tomorrow. Cold front moves over the waters overnight Friday and could bring a few isolated showers. High pressure builds back in for Saturday and Sunday. Another cold front moves through Monday with a better chance for rain $$ ANZ250-040900- Coastal waters east of Ipswich Bay and the Stellwagen Bank National Marine Sanctuary- 403 PM EDT Thu Oct 3 2024 .TONIGHT...S winds 5 to 10 kt with gusts up to 20 kt. Seas 2 to 4 ft. Wave Detail: E 4 ft at 10 seconds and SW 2 ft at 3 seconds. .FRI...S winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: SE 3 ft at 10 seconds and SW 1 foot at 3 seconds. .FRI NIGHT...S winds 5 to 10 kt. Gusts up to 20 kt in the evening. Seas 2 to 4 ft. Wave Detail: SE 4 ft at 10 seconds and S 1 foot at 3 seconds. .SAT...W winds 5 to 10 kt, becoming N in the afternoon. Seas 2 to 3 ft. Wave Detail: SE 3 ft at 10 seconds and SW 1 foot at 2 seconds. A chance of showers. .SAT NIGHT AND SUN...NE winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 5 ft. Wave Detail: NE 5 ft at 10 seconds. .SUN NIGHT...E winds around 5 kt, becoming S after midnight. Seas 4 to 5 ft. Wave Detail: E 5 ft at 14 seconds. A chance of showers after midnight. .MON...S winds 5 to 10 kt. Seas 4 to 6 ft. Showers likely. .MON NIGHT...W winds around 10 kt. Seas 4 to 6 ft. A chance of showers. .TUE AND TUE NIGHT...NW winds around 10 kt. Seas 4 to 6 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ251-040900- Massachusetts Bay and Ipswich Bay- 403 PM EDT Thu Oct 3 2024 .TONIGHT...S winds 5 to 10 kt. Gusts up to 20 kt this evening. Seas 2 to 3 ft. Wave Detail: E 3 ft at 10 seconds and S 1 foot at 3 seconds. .FRI...S winds 5 to 10 kt. Seas around 2 ft. Wave Detail: E 2 ft at 10 seconds and SW 1 foot at 3 seconds. .FRI NIGHT...S winds 5 to 10 kt. Gusts up to 20 kt in the evening. Seas 2 to 3 ft. Wave Detail: E 3 ft at 10 seconds and SE 2 ft at 3 seconds. .SAT...W winds 5 to 10 kt, becoming N in the afternoon. Seas around 2 ft. Wave Detail: E 2 ft at 10 seconds and S 1 foot at 2 seconds. A chance of showers in the morning. .SAT NIGHT AND SUN...NE winds 10 to 15 kt. Seas 2 to 4 ft. Wave Detail: NE 4 ft at 8 seconds and N 1 foot at 3 seconds. .SUN NIGHT...SE winds 5 to 10 kt, becoming S after midnight. Seas 3 to 4 ft. Wave Detail: E 4 ft at 10 seconds. A chance of showers after midnight. .MON...S winds 5 to 10 kt. Seas 3 to 5 ft. Showers likely. .MON NIGHT...W winds around 10 kt. Seas 3 to 5 ft. A chance of showers. .TUE AND TUE NIGHT...NW winds around 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. $$ ANZ231-040900- Cape Cod Bay- 403 PM EDT Thu Oct 3 2024 .TONIGHT...S winds 5 to 10 kt. Seas around 2 ft. Wave Detail: E 2 ft at 8 seconds and S 1 foot at 2 seconds. .FRI...S winds 5 to 10 kt. Seas around 2 ft. Wave Detail: E 2 ft at 10 seconds. .FRI NIGHT...S winds 5 to 10 kt. Seas around 2 ft in the evening, then 1 foot or less. Wave Detail: E 2 ft at 10 seconds and S 1 foot at 2 seconds, becoming S 1 foot at 2 seconds and E 1 foot at 10 seconds. .SAT...W winds around 5 kt, becoming N in the afternoon. Seas around 2 ft. Wave Detail: E 2 ft at 10 seconds. A chance of showers in the morning. .SAT NIGHT AND SUN...NE winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Wave Detail: E 2 ft at 7 seconds and N 1 foot at 3 seconds. .SUN NIGHT...E winds around 5 kt, becoming S after midnight. Seas 2 to 3 ft. Wave Detail: N 2 ft at 5 seconds. A chance of showers after midnight. .MON...S winds 5 to 10 kt. Seas 2 to 3 ft. Showers likely. .MON NIGHT...W winds around 10 kt. Seas around 3 ft. A chance of showers. .TUE AND TUE NIGHT...NW winds around 10 kt. Seas 2 to 3 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ254-040900- Coastal waters from Provincetown MA to Chatham MA to Nantucket MA out 20 nm- 403 PM EDT Thu Oct 3 2024 .TONIGHT...S winds around 5 kt. Seas 3 to 4 ft. Wave Detail: E 4 ft at 10 seconds. .FRI...S winds around 5 kt. Seas 2 to 4 ft. Wave Detail: E 4 ft at 10 seconds. .FRI NIGHT...S winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: SE 3 ft at 10 seconds. .SAT...SW winds around 5 kt, becoming NW in the afternoon. Seas 3 to 4 ft. Wave Detail: SE 4 ft at 10 seconds. .SAT NIGHT...N winds 10 to 15 kt. Gusts up to 20 kt after midnight. Seas 3 to 5 ft. Wave Detail: E 5 ft at 10 seconds. .SUN AND SUN NIGHT...S winds 10 to 15 kt with gusts up to 20 kt. Seas 4 to 6 ft. Wave Detail: NE 6 ft at 10 seconds. .MON...S winds 10 to 15 kt. Seas 5 to 6 ft. Showers likely. .MON NIGHT...W winds 10 to 15 kt. Seas 5 to 6 ft. A chance of showers. .TUE AND TUE NIGHT...NW winds 10 to 15 kt. Seas 4 to 6 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. $$ ANZ255-040900- Coastal Waters extending out to 25 nm South of Marthas Vineyard and Nantucket- 403 PM EDT Thu Oct 3 2024 .TONIGHT...SE winds around 5 kt. Seas 2 to 4 ft. Wave Detail: E 4 ft at 10 seconds. Patchy fog after midnight with vsby 1 NM or less. .FRI...SE winds around 5 kt, increasing to 5 to 10 kt in the afternoon. Seas 2 to 4 ft. Wave Detail: E 4 ft at 10 seconds. .FRI NIGHT...SE winds around 5 kt. Seas 2 to 3 ft. Wave Detail: SE 3 ft at 10 seconds. .SAT...W winds around 5 kt, becoming N in the afternoon. Seas 2 to 4 ft. Wave Detail: SE 3 ft at 10 seconds. .SAT NIGHT AND SUN...NE winds 10 to 15 kt. Seas 3 to 5 ft. Wave Detail: NE 5 ft at 10 seconds and N 1 foot at 3 seconds. .SUN NIGHT...E winds 5 to 10 kt, becoming SE after midnight. Seas 3 to 5 ft. Wave Detail: E 5 ft at 12 seconds and N 1 foot at 3 seconds. .MON...S winds 10 to 15 kt. Seas 4 to 6 ft. Showers likely. .MON NIGHT...NW winds 10 to 15 kt. Seas 4 to 6 ft. A chance of showers. .TUE AND TUE NIGHT...NW winds 10 to 15 kt. Seas 3 to 5 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ256-040900- Coastal Waters from Montauk NY to Marthas Vineyard extending out to 20 nm South of Block Island- 403 PM EDT Thu Oct 3 2024 .TONIGHT...S winds around 5 kt. Seas 2 to 3 ft. Wave Detail: SE 3 ft at 9 seconds. .FRI...SE winds around 5 kt. Seas 2 to 3 ft. Wave Detail: SE 3 ft at 10 seconds. .FRI NIGHT...S winds around 5 kt. Seas 2 to 3 ft. Wave Detail: SE 3 ft at 10 seconds. .SAT...W winds around 5 kt, becoming N in the afternoon. Seas 2 to 3 ft. Wave Detail: SE 3 ft at 10 seconds. .SAT NIGHT AND SUN...NE winds 10 to 15 kt. Seas 2 to 4 ft. Wave Detail: NE 4 ft at 10 seconds and N 1 foot at 3 seconds. .SUN NIGHT...SE winds 5 to 10 kt. Seas 3 to 4 ft. Wave Detail: E 4 ft at 12 seconds. A chance of showers after midnight. .MON...S winds 10 to 15 kt. Seas 4 to 5 ft. Showers likely. .MON NIGHT...NW winds 10 to 15 kt. Seas 4 to 5 ft. A chance of showers. .TUE AND TUE NIGHT...NW winds 10 to 15 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. $$ ANZ232-040900- Nantucket Sound- 403 PM EDT Thu Oct 3 2024 .TONIGHT...S winds around 5 kt. Seas around 2 ft. Wave Detail: E 2 ft at 10 seconds and S 1 foot at 5 seconds. .FRI...S winds 5 to 10 kt. Seas around 2 ft. Wave Detail: E 2 ft at 10 seconds and S 1 foot at 3 seconds. .FRI NIGHT...S winds 5 to 10 kt. Seas around 2 ft. Wave Detail: SE 2 ft at 10 seconds and S 1 foot at 2 seconds. .SAT...SW winds around 5 kt, becoming N in the afternoon. Seas around 2 ft. Wave Detail: SE 2 ft at 10 seconds and S 1 foot at 3 seconds. .SAT NIGHT AND SUN...NE winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: E 2 ft at 10 seconds and NW 1 foot at 3 seconds. .SUN NIGHT...E winds 5 to 10 kt, becoming S after midnight. Seas 2 to 3 ft. Wave Detail: NE 2 ft at 9 seconds and N 1 foot at 3 seconds. A chance of showers after midnight. .MON...S winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. Showers likely. .MON NIGHT...W winds 10 to 15 kt. Seas 2 to 4 ft. A chance of showers. .TUE AND TUE NIGHT...NW winds 10 to 15 kt. Seas 2 to 3 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ233-040900- Vineyard Sound- 403 PM EDT Thu Oct 3 2024 .TONIGHT...S winds around 5 kt. Seas around 2 ft. Wave Detail: SE 2 ft at 9 seconds and S 1 foot at 2 seconds. .FRI...S winds around 5 kt. Seas 1 foot or less. Wave Detail: SE 1 foot at 9 seconds. .FRI NIGHT...S winds around 5 kt. Seas 1 foot or less. Wave Detail: S 1 foot at 2 seconds and SE 1 foot at 10 seconds. .SAT...W winds around 5 kt, becoming N in the afternoon. Seas around 2 ft in the morning, then 1 foot or less. Wave Detail: SE 2 ft at 10 seconds, becoming W 1 foot at 2 seconds and SE 1 foot at 10 seconds. .SAT NIGHT AND SUN...NE winds around 10 kt. Seas around 2 ft. Wave Detail: NW 1 foot at 2 seconds and E 1 foot at 9 seconds. .SUN NIGHT...E winds 5 to 10 kt, becoming SE after midnight. Seas around 2 ft. Wave Detail: E 2 ft at 7 seconds. A chance of showers after midnight. .MON...S winds 10 to 15 kt. Seas 2 to 3 ft. Showers likely. .MON NIGHT...NW winds 10 to 15 kt. Seas 2 to 3 ft. A chance of showers. .TUE AND TUE NIGHT...NW 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. $$ ANZ234-040900- Buzzards Bay- 403 PM EDT Thu Oct 3 2024 .TONIGHT...SW winds around 5 kt. Seas 1 foot or less. Wave Detail: S 1 foot at 2 seconds and SE 1 foot at 9 seconds. .FRI...S winds around 5 kt, increasing to 5 to 10 kt in the afternoon. Seas 1 foot or less. Wave Detail: SE 1 foot at 10 seconds. .FRI NIGHT...S winds 5 to 10 kt. Seas 1 foot or less. Wave Detail: S 1 foot at 2 seconds and SE 1 foot at 10 seconds. .SAT...W winds around 5 kt, becoming N in the afternoon. Seas around 2 ft in the morning, then 1 foot or less. Wave Detail: SE 2 ft at 10 seconds, becoming W 1 foot at 2 seconds and SE 1 foot at 10 seconds. .SAT NIGHT AND SUN...NE winds 5 to 10 kt. Seas around 2 ft. Wave Detail: NW 1 foot at 2 seconds and NE 1 foot at 7 seconds. .SUN NIGHT...E winds 5 to 10 kt, becoming S after midnight. Seas around 2 ft. Wave Detail: E 2 ft at 5 seconds and N 1 foot at 3 seconds. A chance of showers after midnight. .MON...S winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Showers likely. .MON NIGHT...NW winds 10 to 15 kt. Seas 2 to 3 ft. A chance of showers. .TUE AND TUE NIGHT...NW winds around 10 kt. Seas 2 to 3 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ235-040900- Rhode Island Sound- 403 PM EDT Thu Oct 3 2024 .TONIGHT...S winds around 5 kt. Seas around 2 ft. Wave Detail: SE 2 ft at 9 seconds. .FRI...S winds around 5 kt, increasing to 5 to 10 kt in the afternoon. Seas around 2 ft. Wave Detail: SE 2 ft at 9 seconds. .FRI NIGHT...S winds 5 to 10 kt. Seas around 2 ft. Wave Detail: SE 2 ft at 10 seconds. .SAT...W winds around 5 kt, becoming N in the afternoon. Seas around 2 ft. Wave Detail: SE 2 ft at 10 seconds. .SAT NIGHT...NE winds 5 to 10 kt, becoming N 10 to 15 kt after midnight. Seas 2 to 3 ft. Wave Detail: NE 3 ft at 10 seconds and NW 1 foot at 2 seconds. .SUN...NE winds 10 to 15 kt, becoming E 5 to 10 kt in the afternoon. Seas 2 to 3 ft. Wave Detail: NE 3 ft at 10 seconds and N 1 foot at 3 seconds. .SUN NIGHT...SE winds 5 to 10 kt. Seas 2 to 3 ft. A chance of showers after midnight. .MON...S winds around 10 kt. Seas 3 to 4 ft. Showers likely. .MON NIGHT...NW winds 10 to 15 kt. Seas 3 to 4 ft. A chance of showers. .TUE AND TUE NIGHT...NW 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. $$ ANZ237-040900- Block Island Sound- 403 PM EDT Thu Oct 3 2024 .TONIGHT...SW winds around 5 kt. Seas around 2 ft. Wave Detail: SE 2 ft at 9 seconds. .FRI...S winds around 5 kt. Seas around 2 ft. Wave Detail: SE 2 ft at 9 seconds. .FRI NIGHT...S winds around 5 kt. Seas around 2 ft. Wave Detail: SE 2 ft at 10 seconds. .SAT...W winds around 5 kt, becoming N around 5 kt in the afternoon. Seas around 2 ft. Wave Detail: SE 2 ft at 10 seconds. .SAT NIGHT...NE winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: E 3 ft at 10 seconds. .SUN...NE winds around 10 kt, becoming E in the afternoon. Seas 2 to 3 ft. Wave Detail: E 3 ft at 10 seconds. .SUN NIGHT...S winds 5 to 10 kt. Seas 2 to 3 ft. A chance of showers after midnight. .MON...S winds around 10 kt. Seas 3 to 4 ft. Showers likely. .MON NIGHT...NW winds around 10 kt. Seas 3 to 4 ft. A chance of showers. .TUE AND TUE NIGHT...NW winds around 10 kt. Seas 2 to 3 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ230-040900- Boston Harbor- 403 PM EDT Thu Oct 3 2024 .TONIGHT...S winds 5 to 10 kt. Waves 1 foot or less. .FRI...S winds 5 to 10 kt. Waves 1 foot or less. .FRI NIGHT...S winds 5 to 10 kt. Waves 1 foot or less. A chance of showers after midnight. .SAT...W winds 5 to 10 kt, becoming N in the afternoon. Waves 1 foot or less. A chance of showers in the morning. .SAT NIGHT...N winds 5 to 10 kt. Waves 1 foot or less. .SUN...NE winds 5 to 10 kt. Waves 1 foot or less. .SUN NIGHT...SE winds 5 to 10 kt, becoming S after midnight. Waves 1 foot or less. A chance of showers after midnight. .MON...S winds 5 to 10 kt. Waves 1 foot or less, except 2 to 4 ft at the outer harbor entrance. Showers likely. .MON NIGHT...W winds around 10 kt. Waves 1 foot or less, except 2 to 4 ft at the outer harbor entrance. A chance of showers. .TUE AND TUE NIGHT...NW winds around 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. $$ ANZ236-040900- Narragansett Bay- 403 PM EDT Thu Oct 3 2024 .TONIGHT...SW winds around 5 kt. Waves 1 foot or less. .FRI...S winds around 5 kt, increasing to 5 to 10 kt in the afternoon. Waves 1 foot or less. .FRI NIGHT...S winds around 5 kt. Waves around 2 ft. .SAT...W winds around 5 kt, becoming N in the afternoon. Waves around 2 ft. .SAT NIGHT...N winds 5 to 10 kt. Waves 2 to 3 ft. .SUN...N winds 5 to 10 kt, becoming E in the afternoon. Waves 2 to 3 ft. .SUN NIGHT...SE winds 5 to 10 kt. Waves 2 to 3 ft. A chance of showers after midnight. .MON...S winds 5 to 10 kt. Waves 2 to 4 ft. Showers likely. .MON NIGHT...NW winds around 10 kt. Waves 2 to 4 ft. A chance of showers. .TUE AND TUE NIGHT...NW winds 5 to 10 kt. Waves 2 to 3 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ 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