Coastal Waters Forecast
Issued by NWS Boston, MA
Issued by NWS Boston, MA
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109 FZUS51 KBOX 081104 CWFBOX Coastal Waters Forecast for Massachusetts and Rhode Island National Weather Service Boston/Norton MA 703 AM EDT Tue Oct 8 2024 Coastal waters from the Merrimack River MA to Watch Hill RI out to 25 NM ANZ200-090000- 703 AM EDT Tue Oct 8 2024 .Synopsis for Massachusetts and Rhode Island coastal waters... A cold front moves E of the waters today as high pres builds across the Midwest through Wed, leading to W-NW flow. Long period easterly swell will begin to subside tonight. A cold front crosses the waters Wed night followed by high pres moving from the Gt Lakes Thu to the mid Atlc region Fri. Another cold front will move across the waters Sat. High pres moves E of the waters Sun as low pres approaches from Gt Lakes. $$ ANZ250-090000- Coastal waters east of Ipswich Bay and the Stellwagen Bank National Marine Sanctuary- 703 AM EDT Tue Oct 8 2024 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH WEDNESDAY MORNING... .TODAY...NW winds 10 to 15 kt. Gusts up to 20 kt this morning. Seas 5 to 7 ft. Wave Detail: E 7 ft at 15 seconds and W 3 ft at 4 seconds. .TONIGHT...W winds 5 to 10 kt. Seas 4 to 5 ft. Wave Detail: E 5 ft at 12 seconds and NW 2 ft at 4 seconds. .WED...W winds 5 to 10 kt. Seas 3 to 5 ft. Wave Detail: E 5 ft at 12 seconds. .WED NIGHT...W winds 5 to 10 kt, becoming NW 10 to 15 kt with gusts up to 20 kt after midnight. Seas 3 to 4 ft. Wave Detail: SE 4 ft at 11 seconds and W 3 ft at 4 seconds. A chance of showers. .THU AND THU NIGHT...NW winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to 5 ft. Wave Detail: NW 4 ft at 5 seconds and E 3 ft at 11 seconds. .FRI THROUGH SAT...W winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 4 ft. Wave Detail: NW 4 ft at 5 seconds and E 3 ft at 11 seconds. .SAT NIGHT...NW winds around 15 kt with gusts up to 25 kt. Seas 3 to 5 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ251-090000- Massachusetts Bay and Ipswich Bay- 703 AM EDT Tue Oct 8 2024 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS EVENING... .TODAY...NW winds 10 to 15 kt. Gusts up to 20 kt this morning. Seas 4 to 5 ft. Wave Detail: E 5 ft at 15 seconds and NW 2 ft at 3 seconds. .TONIGHT...W winds 5 to 10 kt. Seas 3 to 4 ft. Wave Detail: E 4 ft at 13 seconds and NW 1 foot at 4 seconds. .WED...W winds 5 to 10 kt. Seas 2 to 4 ft. Wave Detail: E 4 ft at 12 seconds. .WED NIGHT...W winds 5 to 10 kt, increasing to 10 to 15 kt with gusts up to 20 kt after midnight. Seas 2 to 3 ft. Wave Detail: E 3 ft at 12 seconds and W 2 ft at 3 seconds. .THU AND THU NIGHT...NW winds 15 to 20 kt. Seas 2 to 3 ft. Wave Detail: NW 3 ft at 3 seconds and E 3 ft at 11 seconds. .FRI THROUGH SAT NIGHT...NW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Wave Detail: NW 3 ft at 4 seconds and NE 2 ft at 8 seconds. 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. $$ ANZ231-090000- Cape Cod Bay- 703 AM EDT Tue Oct 8 2024 .TODAY...NW winds 10 to 15 kt. Gusts up to 20 kt this morning. Seas 2 to 4 ft. Wave Detail: E 4 ft at 13 seconds and NW 2 ft at 4 seconds. .TONIGHT...W winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: E 3 ft at 12 seconds and NW 1 foot at 4 seconds. .WED...W winds 5 to 10 kt. Seas around 2 ft. Wave Detail: E 2 ft at 10 seconds and NW 1 foot at 4 seconds. .WED NIGHT...W winds 5 to 10 kt, becoming NW 10 to 15 kt with gusts up to 20 kt after midnight. Seas 2 to 3 ft. Wave Detail: NW 2 ft at 3 seconds and E 2 ft at 9 seconds. .THU AND THU NIGHT...NW winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 4 ft. Wave Detail: NW 3 ft at 4 seconds and E 2 ft at 11 seconds. .FRI THROUGH SAT NIGHT...NW winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 3 ft. Wave Detail: NW 3 ft at 5 seconds and NE 2 ft at 9 seconds. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ254-090000- Coastal waters from Provincetown MA to Chatham MA to Nantucket MA out 20 nm- 703 AM EDT Tue Oct 8 2024 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH WEDNESDAY MORNING... .TODAY...NW winds 10 to 15 kt. Seas 5 to 7 ft. Wave Detail: E 7 ft at 14 seconds and SW 2 ft at 5 seconds. .TONIGHT...W winds 5 to 10 kt. Seas 4 to 6 ft. Wave Detail: E 6 ft at 13 seconds and NW 2 ft at 4 seconds. .WED...W winds 5 to 10 kt. Seas 3 to 5 ft. Wave Detail: E 5 ft at 12 seconds and NW 1 foot at 4 seconds. .WED NIGHT...W winds 10 to 15 kt. Gusts up to 20 kt after midnight. Seas 3 to 4 ft. Wave Detail: E 4 ft at 12 seconds and W 3 ft at 4 seconds. A chance of showers after midnight. .THU AND THU NIGHT...NW winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to 5 ft. Wave Detail: NW 4 ft at 5 seconds and E 3 ft at 11 seconds. .FRI THROUGH SAT NIGHT...NW winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to 5 ft. Wave Detail: NW 4 ft at 6 seconds and NE 3 ft at 11 seconds. 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. $$ ANZ255-090000- Coastal Waters extending out to 25 nm South of Marthas Vineyard and Nantucket- 703 AM EDT Tue Oct 8 2024 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH WEDNESDAY MORNING... .TODAY...NW winds 10 to 15 kt. Seas 4 to 6 ft. Wave Detail: E 5 ft at 15 seconds and W 3 ft at 5 seconds. .TONIGHT...W winds 5 to 10 kt. Seas 3 to 5 ft. Wave Detail: E 5 ft at 13 seconds and W 2 ft at 5 seconds. .WED...W winds 10 to 15 kt. Seas 3 to 5 ft. Wave Detail: E 4 ft at 12 seconds and W 3 ft at 4 seconds. .WED NIGHT...W winds 10 to 15 kt. Gusts up to 20 kt after midnight. Seas 2 to 4 ft. Wave Detail: W 4 ft at 5 seconds and E 3 ft at 12 seconds. .THU AND THU NIGHT...NW winds 15 to 20 kt. Seas 2 to 4 ft. Wave Detail: W 4 ft at 5 seconds and E 3 ft at 11 seconds. .FRI AND FRI NIGHT...W winds 15 to 20 kt. Seas 2 to 4 ft. Wave Detail: NW 4 ft at 5 seconds and E 2 ft at 10 seconds. .SAT...W winds 15 to 20 kt with gusts up to 25 kt. Seas 4 to 6 ft. .SAT NIGHT...NW winds 15 to 20 kt. Seas 3 to 5 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ256-090000- Coastal Waters from Montauk NY to Marthas Vineyard extending out to 20 nm South of Block Island- 703 AM EDT Tue Oct 8 2024 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS EVENING... .TODAY...NW winds 10 to 15 kt. Seas 3 to 5 ft. Wave Detail: SE 5 ft at 15 seconds and NW 4 ft at 5 seconds. .TONIGHT...W winds around 10 kt. Seas 3 to 4 ft. Wave Detail: E 4 ft at 13 seconds and W 2 ft at 4 seconds. .WED...W winds 10 to 15 kt. Seas 2 to 4 ft. Wave Detail: E 4 ft at 12 seconds and W 3 ft at 4 seconds. .WED NIGHT...W winds 10 to 15 kt, becoming NW 15 to 20 kt after midnight. Seas 2 to 4 ft. Wave Detail: W 4 ft at 4 seconds and E 3 ft at 12 seconds. .THU AND THU NIGHT...NW winds 15 to 20 kt. Seas 2 to 4 ft. Wave Detail: NW 4 ft at 5 seconds and E 3 ft at 11 seconds. .FRI AND FRI NIGHT...NW winds 10 to 15 kt, becoming W 15 to 20 kt. Seas 2 to 4 ft. Wave Detail: NW 4 ft at 4 seconds and E 2 ft at 10 seconds. .SAT AND SAT NIGHT...W winds 15 to 20 kt, becoming NW. Gusts up to 25 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. $$ ANZ232-090000- Nantucket Sound- 703 AM EDT Tue Oct 8 2024 .TODAY...NW winds 10 to 15 kt. Seas 2 to 4 ft. Wave Detail: E 3 ft at 15 seconds and NW 2 ft at 4 seconds. .TONIGHT...W winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: E 3 ft at 13 seconds and W 2 ft at 3 seconds. .WED...W winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: W 2 ft at 3 seconds and E 2 ft at 13 seconds. .WED NIGHT...W winds 10 to 15 kt. Gusts up to 20 kt after midnight. Seas 2 to 3 ft. Wave Detail: W 2 ft at 3 seconds and E 2 ft at 12 seconds. .THU AND THU NIGHT...NW winds 15 to 20 kt. Seas 2 to 3 ft. Wave Detail: NW 3 ft at 4 seconds and E 2 ft at 11 seconds. .FRI THROUGH SAT NIGHT...NW winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 3 ft. Wave Detail: NW 3 ft at 4 seconds and E 1 foot at 11 seconds. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ233-090000- Vineyard Sound- 703 AM EDT Tue Oct 8 2024 .TODAY...NW winds 10 to 15 kt. Seas around 2 ft. Wave Detail: NW 2 ft at 5 seconds and SE 2 ft at 15 seconds. .TONIGHT...W winds 5 to 10 kt. Seas around 2 ft. Wave Detail: SE 2 ft at 13 seconds and W 1 foot at 5 seconds. .WED...NW winds 5 to 10 kt, becoming W in the afternoon. Seas around 2 ft. Wave Detail: SW 2 ft at 4 seconds and E 1 foot at 12 seconds. .WED NIGHT...W winds 10 to 15 kt. Seas around 2 ft. Wave Detail: SW 2 ft at 4 seconds and E 1 foot at 11 seconds. .THU AND THU NIGHT...NW winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft. Wave Detail: NW 2 ft at 4 seconds and E 1 foot at 11 seconds. .FRI THROUGH SAT NIGHT...NW winds 15 to 20 kt. Seas 2 to 3 ft. Wave Detail: SW 3 ft at 5 seconds and SE 1 foot at 9 seconds. 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. $$ ANZ234-090000- Buzzards Bay- 703 AM EDT Tue Oct 8 2024 .TODAY...NW winds around 10 kt. Seas 2 to 3 ft. Wave Detail: NW 2 ft at 4 seconds and E 2 ft at 15 seconds. .TONIGHT...W winds 5 to 10 kt. Seas around 2 ft. Wave Detail: E 2 ft at 13 seconds and SW 1 foot at 5 seconds. .WED...NW winds 5 to 10 kt, becoming W in the afternoon. Seas around 2 ft. Wave Detail: E 2 ft at 12 seconds and W 1 foot at 3 seconds. .WED NIGHT...W winds 10 to 15 kt. Seas around 2 ft. Wave Detail: W 2 ft at 4 seconds and E 1 foot at 11 seconds. .THU AND THU NIGHT...NW winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft. Wave Detail: NW 2 ft at 4 seconds and E 1 foot at 11 seconds. .FRI THROUGH SAT NIGHT...NW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Wave Detail: SW 3 ft at 5 seconds and E 1 foot at 9 seconds. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ235-090000- Rhode Island Sound- 703 AM EDT Tue Oct 8 2024 .TODAY...NW winds 10 to 15 kt, becoming W this afternoon. Seas 2 to 4 ft. Wave Detail: SE 4 ft at 15 seconds and W 3 ft at 5 seconds. .TONIGHT...W winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: SE 3 ft at 13 seconds and W 2 ft at 4 seconds. .WED...NW winds 5 to 10 kt, becoming W 10 to 15 kt in the afternoon. Seas 2 to 3 ft. Wave Detail: W 2 ft at 4 seconds and SE 2 ft at 12 seconds. .WED NIGHT...NW winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: W 3 ft at 4 seconds and SE 2 ft at 12 seconds. .THU AND THU NIGHT...NW winds 15 to 20 kt. Seas 2 to 3 ft. Wave Detail: NW 3 ft at 4 seconds and SE 1 foot at 11 seconds. .FRI THROUGH SAT NIGHT...NW winds 15 to 20 kt. Seas 2 to 4 ft. Wave Detail: SW 4 ft at 5 seconds and S 2 ft at 11 seconds. 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. $$ ANZ237-090000- Block Island Sound- 703 AM EDT Tue Oct 8 2024 .TODAY...NW winds 10 to 15 kt, becoming W this afternoon. Seas 2 to 4 ft. Wave Detail: SE 4 ft at 15 seconds and W 2 ft at 5 seconds. .TONIGHT...W winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: SE 3 ft at 14 seconds and W 1 foot at 3 seconds. .WED...W winds 5 to 10 kt. Seas around 2 ft. Wave Detail: W 2 ft at 4 seconds and SE 2 ft at 12 seconds. .WED NIGHT...NW winds 10 to 15 kt. Seas around 2 ft. Wave Detail: W 2 ft at 4 seconds and E 2 ft at 12 seconds. .THU AND THU NIGHT...NW winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft. Wave Detail: NW 2 ft at 4 seconds and E 2 ft at 12 seconds. .FRI THROUGH SAT NIGHT...NW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. Wave Detail: W 3 ft at 4 seconds and SE 2 ft at 10 seconds. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ230-090000- Boston Harbor- 703 AM EDT Tue Oct 8 2024 .TODAY...NW winds 10 to 15 kt with gusts up to 20 kt, diminishing to 5 to 10 kt this afternoon. Waves around 2 ft this morning, then 1 foot or less. At the outer harbor entrance, waves 2 to 4 ft. .TONIGHT...W winds 5 to 10 kt. Waves 1 foot or less, except 2 to 4 ft at the outer harbor entrance. .WED...W winds 5 to 10 kt. Waves 1 foot or less. .WED NIGHT...W winds 10 to 15 kt. Waves 1 foot or less, then around 2 ft after midnight. .THU AND THU NIGHT...NW winds 10 to 15 kt with gusts up to 20 kt. Waves around 2 ft. .FRI THROUGH SAT NIGHT...NW 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. $$ ANZ236-090000- Narragansett Bay- 703 AM EDT Tue Oct 8 2024 .TODAY...NW winds 5 to 10 kt. Waves 2 to 3 ft. .TONIGHT...W winds 5 to 10 kt. Waves 2 to 3 ft. .WED...W winds 5 to 10 kt. Waves around 2 ft. .WED NIGHT...W winds 5 to 10 kt. Waves around 2 ft. .THU AND THU NIGHT...NW winds 10 to 15 kt with gusts up to 20 kt. Waves around 2 ft. .FRI THROUGH SAT NIGHT...NW winds 10 to 15 kt with gusts up to 20 kt. Waves 2 to 3 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ 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