Coastal Waters Forecast
Issued by NWS Boston, MA

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000 FZUS51 KBOX 221117 CWFBOX Coastal Waters Forecast National Weather Service Boston/Norton MA 716 AM EDT Tue May 22 2018 Coastal waters from the Merrimack River MA to Watch Hill RI out to 25 NM ANZ200-230000- 716 AM EDT Tue May 22 2018 .Synopsis for Massachusetts and Rhode Island coastal waters... Low pressure will move east from the eastern Great Lakes today with its warm front skirting the south coast of New England. The low will exit the waters Wed morning. A cold front will move southward across the waters Wed evening. High pres builds over the waters Thu, the SE of the waters Fri. A cold front may pass southward across the waters late in the day on Sat. For information on possible hazardous weather beyond the 24-36 hour forecast period, please visit www.weather.gov/boston and follow the Current Hazards link above the map on the left. $$ ANZ250-230000- Coastal waters east of Ipswich Bay and the Stellwagen Bank National Marine Sanctuary- 716 AM EDT Tue May 22 2018 .TODAY...SE winds around 5 kt, becoming S this afternoon. Seas 2 to 3 ft. A chance of showers this afternoon. .TONIGHT...S winds 5 to 10 kt. Seas 2 to 3 ft. Patchy fog. Showers likely. Vsby 1 to 3 NM. .WED...W winds 5 to 10 kt. Seas around 2 ft. Patchy fog. Vsby 1 to 3 NM. .WED NIGHT...SW winds 5 to 10 kt, becoming NE with gusts up to 20 kt after midnight. Seas 2 to 3 ft. A chance of showers. Vsby 1 to 3 NM. .THU...NE winds 5 to 10 kt, becoming SE with gusts up to 20 kt in the afternoon. Seas 2 to 3 ft. .THU NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. .FRI...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. .FRI NIGHT...SW winds 15 to 20 kt. Seas 3 to 5 ft. .SAT...SW winds 10 to 15 kt. Seas 2 to 4 ft. A chance of showers. .SAT NIGHT...E winds 5 to 10 kt. Seas around 2 ft. A chance of showers. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ251-230000- Massachusetts Bay and Ipswich Bay- 716 AM EDT Tue May 22 2018 .TODAY...W winds around 5 kt, becoming S this afternoon. Seas 1 foot or less. A chance of showers this afternoon. .TONIGHT...S winds 5 to 10 kt. Seas around 2 ft. Patchy fog. Showers likely. Vsby 1 to 3 NM. .WED...W winds around 5 kt, becoming E in the afternoon. Seas 1 foot or less. Patchy fog. Vsby 1 to 3 NM. .WED NIGHT...W winds 5 to 10 kt, becoming NE after midnight. Seas around 2 ft. A chance of showers. Vsby 1 to 3 NM. .THU...NE winds 5 to 10 kt, becoming SE in the afternoon. Seas around 2 ft. .THU NIGHT...SW winds 5 to 10 kt. Seas around 2 ft. .FRI...SW winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft. .FRI NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. .SAT...SW winds 5 to 10 kt. Seas around 2 ft. A chance of showers. .SAT NIGHT...E winds 5 to 10 kt. Seas around 2 ft. A chance of showers. Vsby 1 to 3 NM. 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. $$ ANZ231-230000- Cape Cod Bay- 716 AM EDT Tue May 22 2018 .TODAY...SW winds around 5 kt, becoming S this afternoon. Seas 1 foot or less. A chance of showers this afternoon. .TONIGHT...S winds 5 to 10 kt. Seas 1 foot or less. Patchy fog. Showers. Vsby 1 to 3 NM. .WED...NW winds around 5 kt. Seas 1 foot or less. Patchy fog. Vsby 1 to 3 NM. .WED NIGHT...SW winds 5 to 10 kt, becoming NE after midnight. Seas 1 foot or less. .THU...NE winds 5 to 10 kt, becoming E in the afternoon. Seas 1 foot or less. .THU NIGHT...S winds 5 to 10 kt, becoming SW 10 to 15 kt after midnight. Seas around 2 ft. .FRI...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. .FRI NIGHT...SW winds 15 to 20 kt. Seas 2 to 3 ft. .SAT...SW winds 10 to 15 kt. Seas around 2 ft. .SAT NIGHT...NE winds 5 to 10 kt. Seas around 2 ft. A chance of showers. Vsby 1 to 3 NM. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ254-230000- Coastal waters from Provincetown MA to Chatham MA to Nantucket MA out 20 nm- 716 AM EDT Tue May 22 2018 .TODAY...S winds 5 to 10 kt. Seas 2 to 3 ft. A chance of showers this afternoon. .TONIGHT...S winds 5 to 10 kt. Seas 2 to 3 ft. Patchy fog. Showers. Vsby 1 NM or less. .WED...W winds around 5 kt. Seas 2 to 3 ft. Patchy fog. A chance of showers. Vsby 1 to 3 NM. .WED NIGHT...SW winds around 5 kt, becoming N after midnight. Seas 2 to 4 ft. .THU...E winds 5 to 10 kt. Seas 2 to 4 ft. .THU NIGHT...S winds 5 to 10 kt, becoming SW 10 to 15 kt with gusts up to 20 kt after midnight. Seas 2 to 3 ft. .FRI...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to 5 ft. .FRI NIGHT...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 4 to 6 ft. .SAT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 5 ft. .SAT NIGHT...S winds 5 to 10 kt. Seas 2 to 4 ft. A chance of showers. Vsby 1 to 3 NM. 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. $$ ANZ255-230000- Coastal Waters extending out to 25 nm South of Marthas Vineyard and Nantucket- 716 AM EDT Tue May 22 2018 .TODAY...S winds 5 to 10 kt. Seas 2 to 3 ft. A chance of showers this afternoon. .TONIGHT...SE winds 5 to 10 kt, becoming SW after midnight. Seas 2 to 3 ft. Patchy fog. Showers. Vsby 1 NM or less. .WED...W winds 5 to 10 kt. Seas 2 to 3 ft. Patchy fog. A chance of showers. Vsby 1 to 3 NM. .WED NIGHT...SW winds 5 to 10 kt, becoming NW after midnight. Seas 2 to 4 ft. .THU...E winds 5 to 10 kt. Seas 2 to 4 ft. .THU NIGHT...SW winds 5 to 10 kt. Seas 2 to 3 ft. .FRI...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to 5 ft. .FRI NIGHT...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 4 to 7 ft. .SAT...SW winds around 15 kt with gusts up to 20 kt. Seas 4 to 6 ft. .SAT NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 5 ft. A chance of showers. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ256-230000- Coastal Waters from Montauk NY to Marthas Vineyard extending out to 20 nm South of Block Island- 716 AM EDT Tue May 22 2018 .TODAY...S winds 5 to 10 kt. Seas 2 to 3 ft. Showers this afternoon. .TONIGHT...SE winds 5 to 10 kt, becoming SW after midnight. Seas 2 to 3 ft. Patchy fog. Showers. Vsby 1 NM or less. .WED...W winds 5 to 10 kt. Seas 2 to 3 ft. Patchy fog. Vsby 1 NM or less. .WED NIGHT...SW winds 5 to 10 kt, becoming NW after midnight. Seas 2 to 4 ft. .THU...NE winds 5 to 10 kt, becoming E in the afternoon. Seas 2 to 4 ft. .THU NIGHT...SW winds 5 to 10 kt. Seas 2 to 3 ft. .FRI...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to 5 ft. .FRI NIGHT...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 5 to 7 ft. .SAT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 4 to 6 ft. .SAT NIGHT...W winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 5 ft. A chance of showers. 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. $$ ANZ232-230000- Nantucket Sound- 716 AM EDT Tue May 22 2018 .TODAY...S winds 5 to 10 kt. Seas 1 foot or less. A chance of showers this afternoon. .TONIGHT...S winds 5 to 10 kt. Seas around 2 ft. Patchy fog. Showers. Vsby 1 NM or less. .WED...W winds 5 to 10 kt. Seas 1 foot or less. Patchy fog. A chance of showers. Vsby 1 to 3 NM. .WED NIGHT...SW winds 5 to 10 kt, becoming N after midnight. Seas around 2 ft. .THU...NE winds 5 to 10 kt, becoming SE in the afternoon. Seas around 2 ft. .THU NIGHT...SW winds 5 to 10 kt. Seas around 2 ft. .FRI...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 4 ft. .FRI NIGHT...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 4 ft. .SAT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. .SAT NIGHT...W winds 5 to 10 kt. Seas 2 to 3 ft. A chance of showers. Vsby 1 to 3 NM. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ233-230000- Vineyard Sound- 716 AM EDT Tue May 22 2018 .TODAY...S winds 5 to 10 kt. Seas around 2 ft. Showers likely this afternoon. .TONIGHT...S winds 5 to 10 kt. Seas 1 foot or less. Patchy fog. Showers. Vsby 1 NM or less. .WED...W winds 5 to 10 kt. Seas 1 foot or less. Patchy fog. A chance of showers. Vsby 1 NM or less. .WED NIGHT...SW winds 5 to 10 kt, becoming N after midnight. Seas around 2 ft. .THU...NE winds 5 to 10 kt, becoming SE in the afternoon. Seas around 2 ft. .THU NIGHT...SW winds around 10 kt. Seas around 2 ft. .FRI...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 4 ft. .FRI NIGHT...SW winds 15 to 20 kt. Seas 2 to 4 ft. .SAT...SW winds 10 to 15 kt. Seas 2 to 3 ft. .SAT NIGHT...NW winds 5 to 10 kt. Seas 2 to 3 ft. A chance of showers. Vsby 1 to 3 NM. 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. $$ ANZ234-230000- Buzzards Bay- 716 AM EDT Tue May 22 2018 .TODAY...S winds 5 to 10 kt. Seas 1 foot or less. Showers likely this afternoon. .TONIGHT...S winds around 5 kt. Seas 1 foot or less. Patchy fog. Showers. Vsby 1 to 3 NM. .WED...W winds 5 to 10 kt. Seas 1 foot or less. Patchy fog. Vsby 1 NM or less. .WED NIGHT...SW winds 5 to 10 kt, becoming N after midnight. Seas around 2 ft. .THU...NE winds 5 to 10 kt, becoming SE in the afternoon. Seas around 2 ft. .THU NIGHT...SW winds 5 to 10 kt. Seas around 2 ft. .FRI...SW winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 3 ft. .FRI NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. .SAT...SW winds around 10 kt. Seas 2 to 3 ft. .SAT NIGHT...NW winds 5 to 10 kt. Seas around 2 ft. A chance of showers. Vsby 1 to 3 NM. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ235-230000- Rhode Island Sound- 716 AM EDT Tue May 22 2018 .TODAY...S winds 5 to 10 kt. Seas 2 to 3 ft. Showers this afternoon. .TONIGHT...SE winds 5 to 10 kt, becoming SW after midnight. Seas around 2 ft. Patchy fog. Showers. Vsby 1 NM or less. .WED...SW winds 5 to 10 kt. Seas around 2 ft. Patchy fog. Vsby 1 NM or less. .WED NIGHT...SW winds 5 to 10 kt, becoming N after midnight. Seas 2 to 3 ft. .THU...NE winds 5 to 10 kt, becoming SE in the afternoon. Seas 2 to 3 ft. .THU NIGHT...SW winds 5 to 10 kt. Seas 2 to 3 ft. .FRI...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to 5 ft. .FRI NIGHT...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to 5 ft. .SAT...SW winds 10 to 15 kt. Seas 2 to 4 ft. .SAT NIGHT...NW winds 10 to 15 kt. Seas 2 to 4 ft. A chance of showers. Vsby 1 to 3 NM. 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. $$ ANZ237-230000- Block Island Sound- 716 AM EDT Tue May 22 2018 .TODAY...S winds 5 to 10 kt. Seas 2 to 3 ft. Showers this afternoon. .TONIGHT...SE winds 5 to 10 kt, becoming SW after midnight. Seas around 2 ft. Patchy fog. Showers. Vsby 1 NM or less. .WED...W winds 5 to 10 kt. Seas around 2 ft. Patchy fog. Vsby 1 NM or less. .WED NIGHT...W winds 5 to 10 kt, becoming NW after midnight. Seas 2 to 3 ft. .THU...NE winds 5 to 10 kt, becoming SE in the afternoon. Seas 2 to 3 ft. .THU NIGHT...SW winds 5 to 10 kt. Seas around 2 ft. .FRI...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 5 ft. .FRI NIGHT...SW winds 15 to 20 kt. Seas 3 to 5 ft. .SAT...SW winds 10 to 15 kt. Seas 2 to 4 ft. .SAT NIGHT...N winds 5 to 10 kt. Seas 2 to 4 ft. A chance of showers. Vsby 1 to 3 NM. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ230-230000- Boston Harbor- 716 AM EDT Tue May 22 2018 .TODAY...W winds around 5 kt, becoming S this afternoon. Waves 1 foot or less. Showers likely this afternoon. .TONIGHT...S winds 5 to 10 kt. Waves 1 foot or less. Patchy fog. Showers likely. .WED...NW winds around 5 kt, becoming E in the afternoon. Waves 1 foot or less. Patchy fog. .WED NIGHT...W winds around 5 kt, becoming NE after midnight. Waves 1 foot or less. A chance of showers. .THU...E winds 5 to 10 kt. Waves 1 foot or less. .THU NIGHT...SW winds 5 to 10 kt. Waves 1 foot or less. .FRI...W winds 5 to 10 kt with gusts up to 20 kt. Waves around 2 ft. .FRI NIGHT...SW winds 5 to 10 kt. Waves 1 foot or less. .SAT...SW winds around 5 kt. Waves 1 foot or less. A chance of showers. .SAT NIGHT...E winds around 5 kt. Waves 1 foot or less. A chance of showers. Vsby 1 to 3 NM. 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. $$ ANZ236-230000- Narragansett Bay- 716 AM EDT Tue May 22 2018 .TODAY...S winds 5 to 10 kt. Waves around 2 ft. Showers this afternoon. .TONIGHT...SE winds around 5 kt, becoming SW around 5 kt after midnight. Waves around 2 ft. Patchy fog. Showers. Vsby 1 NM or less. .WED...W winds around 5 kt, increasing to 5 to 10 kt in the afternoon. Waves around 2 ft. Patchy fog. Vsby 1 NM or less. .WED NIGHT...SW winds around 5 kt, becoming N after midnight. Waves around 2 ft. .THU...NE winds around 5 kt, becoming SE in the afternoon. Waves around 2 ft. .THU NIGHT...SW winds 5 to 10 kt. Waves around 2 ft. .FRI...SW winds 10 to 15 kt with gusts up to 20 kt. Waves 2 to 3 ft. .FRI NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Waves 2 to 3 ft. .SAT...SW winds 5 to 10 kt. Waves 2 to 3 ft. .SAT NIGHT...NW winds 5 to 10 kt. Waves around 2 ft. A chance of showers. Vsby 1 to 3 NM. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ 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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