Coastal Waters Forecast
Issued by NWS Boston, MA

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000 FZUS51 KBOX 171558 CWFBOX Coastal Waters Forecast National Weather Service Taunton MA 1058 AM EST Sun Dec 17 2017 Coastal waters from the Merrimack River MA to Watch Hill RI out to 25 NM ANZ200-180415- 1058 AM EST Sun Dec 17 2017 .Synopsis for Massachusetts and Rhode Island coastal waters... High pres builds over New England today. A warm front approaches tonight, then lifts north across the waters Mon. A cold front will sweep across New England and the coastal waters Tue night followed by gusty winds Wed. High pres builds across the waters Thu. 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. $$ ANZ250-180415- Coastal waters east of Ipswich Bay and the Stellwagen Bank National Marine Sanctuary- 1058 AM EST Sun Dec 17 2017 .THIS AFTERNOON...NW winds 10 to 15 kt. Gusts up to 20 kt. Seas 2 to 3 ft. .TONIGHT...NW winds 10 to 15 kt, becoming W around 5 kt after midnight. Seas around 2 ft. .MON...SW winds 5 to 10 kt. Seas around 2 ft. A chance of light rain and light snow. Vsby 1 to 3 NM. .MON NIGHT...W winds 5 to 10 kt. Seas around 2 ft. .TUE...SW winds 10 to 15 kt, increasing to 15 to 20 kt in the afternoon. Gusts up to 25 kt. Seas 2 to 4 ft. .TUE NIGHT...W winds 20 to 25 kt with gusts up to 30 kt. Seas 3 to 5 ft. .WED...NW winds 20 to 25 kt with gusts up to 30 kt. Seas 4 to 7 ft. .WED NIGHT...NW winds 20 to 25 kt with gusts up to 30 kt. Seas 3 to 5 ft. .THU...NW winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 4 ft. .THU NIGHT...W winds 5 to 10 kt. Seas around 2 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ251-180415- Massachusetts Bay and Ipswich Bay- 1058 AM EST Sun Dec 17 2017 .THIS AFTERNOON...NW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. .TONIGHT...NW winds 10 to 15 kt, becoming W around 5 kt after midnight. Seas around 2 ft. .MON...SW winds 5 to 10 kt. Seas 1 foot or less. A chance of light snow. Vsby 1 to 3 NM. .MON NIGHT...W winds 5 to 10 kt. Seas 1 foot or less. .TUE...SW winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 3 ft. .TUE NIGHT...W winds 15 to 20 kt with gusts up to 30 kt. Seas 2 to 3 ft. .WED...W winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 3 ft. .WED NIGHT...NW winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 3 ft. .THU...NW winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft. .THU NIGHT...NW winds 5 to 10 kt. Seas 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. $$ ANZ231-180415- Cape Cod Bay- 1058 AM EST Sun Dec 17 2017 .THIS AFTERNOON...NW winds 10 to 15 kt. Gusts up to 20 kt. Seas 2 to 3 ft. .TONIGHT...NW winds 10 to 15 kt, becoming W around 5 kt after midnight. Seas around 2 ft. .MON...SW winds 5 to 10 kt. Seas 1 foot or less. A chance of light rain and light snow. .MON NIGHT...W winds 5 to 10 kt. Seas 1 foot or less. .TUE...SW winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 4 ft. .TUE NIGHT...W winds 15 to 20 kt with gusts up to 30 kt. Seas 2 to 4 ft. .WED...NW winds 15 to 20 kt with gusts up to 30 kt. Seas 2 to 4 ft. .WED NIGHT...NW winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 4 ft. .THU...NW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. .THU NIGHT...W winds 5 to 10 kt. Seas 1 foot or less. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ254-180415- Coastal waters from Provincetown MA to Chatham MA to Nantucket MA out 20 nm- 1058 AM EST Sun Dec 17 2017 .THIS AFTERNOON...NW winds 10 to 15 kt. Gusts up to 20 kt. Seas 2 to 4 ft. .TONIGHT...NW winds 10 to 15 kt, becoming W around 5 kt after midnight. Seas 2 to 3 ft. .MON...SW winds 5 to 10 kt. Gusts up to 20 kt in the afternoon. Seas 2 to 3 ft. .MON NIGHT...W winds 5 to 10 kt. Gusts up to 20 kt in the evening. Seas 2 to 3 ft. .TUE...SW winds 10 to 15 kt, increasing to 15 to 20 kt in the afternoon. Gusts up to 30 kt. Seas 2 to 4 ft. .TUE NIGHT...W winds 15 to 20 kt, increasing to 20 to 25 kt after midnight. Gusts up to 30 kt. Seas 4 to 7 ft. .WED...NW winds 20 to 25 kt with gusts up to 35 kt. Seas 5 to 8 ft. .WED NIGHT...NW winds 15 to 20 kt with gusts up to 30 kt. Seas 4 to 6 ft. .THU...NW winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 4 ft. .THU NIGHT...W winds 5 to 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. $$ ANZ255-180415- Coastal Waters extending out to 25 nm South of Marthas Vineyard and Nantucket- 1058 AM EST Sun Dec 17 2017 .THIS AFTERNOON...NW winds 10 to 15 kt, diminishing to 5 to 10 kt. Seas 2 to 4 ft. .TONIGHT...N winds 5 to 10 kt, becoming W after midnight. Seas 2 to 3 ft. .MON...SW winds 5 to 10 kt. Gusts up to 20 kt in the afternoon. Seas 2 to 3 ft. .MON NIGHT...W winds 5 to 10 kt. Gusts up to 20 kt in the evening. Seas 2 to 4 ft. .TUE...W winds 10 to 15 kt, increasing to 15 to 20 kt in the afternoon. Gusts up to 30 kt. Seas 3 to 5 ft. .TUE NIGHT...W winds 15 to 20 kt, increasing to 20 to 25 kt after midnight. Gusts up to 30 kt. Seas 5 to 8 ft. .WED...NW winds 20 to 25 kt with gusts up to 35 kt. Seas 5 to 8 ft. .WED NIGHT...NW winds 15 to 20 kt with gusts up to 30 kt. Seas 4 to 6 ft. .THU...NW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. .THU NIGHT...NW winds 5 to 10 kt. Seas 2 to 3 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ256-180415- Coastal Waters from Montauk NY to Marthas Vineyard extending out to 20 nm South of Block Island- 1058 AM EST Sun Dec 17 2017 .THIS AFTERNOON...NW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. .TONIGHT...N winds 5 to 10 kt, becoming S after midnight. Seas around 2 ft. .MON...S winds 5 to 10 kt, becoming SW with gusts up to 20 kt in the afternoon. Seas 2 to 3 ft. .MON NIGHT...W winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. .TUE...W winds 15 to 20 kt with gusts up to 30 kt. Seas 4 to 6 ft. .TUE NIGHT...W winds 20 to 25 kt with gusts up to 30 kt. Seas 5 to 7 ft. .WED...NW winds 20 to 25 kt with gusts up to 35 kt. Seas 4 to 7 ft. .WED NIGHT...NW winds 20 to 25 kt with gusts up to 30 kt. Seas 4 to 6 ft. .THU...NW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. .THU NIGHT...N winds 5 to 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. $$ ANZ232-180415- Nantucket Sound- 1058 AM EST Sun Dec 17 2017 .THIS AFTERNOON...NW winds 10 to 15 kt, diminishing to 5 to 10 kt. Seas around 2 ft. .TONIGHT...NW winds 5 to 10 kt, becoming W after midnight. Seas 1 foot or less. .MON...SW winds 5 to 10 kt. Seas around 2 ft. .MON NIGHT...W winds 5 to 10 kt. Gusts up to 20 kt in the evening. Seas around 2 ft. .TUE...W winds 10 to 15 kt, increasing to 15 to 20 kt in the afternoon. Gusts up to 30 kt. Seas 2 to 3 ft. .TUE NIGHT...W winds 15 to 20 kt with gusts up to 30 kt. Seas 2 to 4 ft. .WED...NW winds 20 to 25 kt with gusts up to 30 kt. Seas 2 to 4 ft. .WED NIGHT...NW winds 15 to 20 kt with gusts up to 30 kt. Seas 2 to 4 ft. .THU...NW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. .THU NIGHT...W winds 5 to 10 kt. Seas 1 foot or less. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ233-180415- Vineyard Sound- 1058 AM EST Sun Dec 17 2017 .THIS AFTERNOON...NW winds 10 to 15 kt, diminishing to 5 to 10 kt. Seas around 2 ft. .TONIGHT...N winds 5 to 10 kt, becoming E after midnight. Seas 1 foot or less. .MON...S winds 5 to 10 kt, becoming SW with gusts up to 20 kt in the afternoon. Seas around 2 ft. A chance of light rain. .MON NIGHT...W winds 5 to 10 kt. Gusts up to 20 kt in the evening. Seas around 2 ft. .TUE...W winds 10 to 15 kt, increasing to 15 to 20 kt in the afternoon. Gusts up to 30 kt. Seas 2 to 4 ft. .TUE NIGHT...W winds 15 to 20 kt with gusts up to 30 kt. Seas 3 to 5 ft. .WED...NW winds 15 to 20 kt with gusts up to 30 kt. Seas 2 to 4 ft. .WED NIGHT...NW winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 3 ft. .THU...NW winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft. .THU NIGHT...N winds 5 to 10 kt. Seas 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. $$ ANZ234-180415- Buzzards Bay- 1058 AM EST Sun Dec 17 2017 .THIS AFTERNOON...NW winds 5 to 10 kt. Seas 1 foot or less. .TONIGHT...N winds 5 to 10 kt, diminishing to around 5 kt after midnight. Seas 1 foot or less. .MON...S winds 5 to 10 kt, becoming SW in the afternoon. Seas 1 foot or less. A chance of light rain. .MON NIGHT...W winds 5 to 10 kt. Seas 1 foot or less. .TUE...W winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 4 ft. .TUE NIGHT...W winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 4 ft. .WED...NW winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 3 ft. .WED NIGHT...NW winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 3 ft. .THU...NW winds 5 to 10 kt with gusts up to 20 kt. Seas 1 foot or less. .THU NIGHT...NW winds 5 to 10 kt. Seas 1 foot or less. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ235-180415- Rhode Island Sound- 1058 AM EST Sun Dec 17 2017 .THIS AFTERNOON...NW winds 10 to 15 kt, diminishing to 5 to 10 kt. Seas 2 to 3 ft. .TONIGHT...N winds 5 to 10 kt, becoming E after midnight. Seas around 2 ft. .MON...S winds 5 to 10 kt, becoming SW with gusts up to 20 kt in the afternoon. Seas 2 to 3 ft. A chance of light rain. .MON NIGHT...W winds 10 to 15 kt with gusts up to 20 kt, diminishing to 5 to 10 kt after midnight. Seas 2 to 3 ft. .TUE...W winds 15 to 20 kt with gusts up to 30 kt. Seas 3 to 5 ft. .TUE NIGHT...W winds 15 to 20 kt with gusts up to 30 kt. Seas 3 to 5 ft. .WED...NW winds 20 to 25 kt with gusts up to 30 kt. Seas 3 to 5 ft. .WED NIGHT...NW winds 15 to 20 kt with gusts up to 30 kt. Seas 2 to 4 ft. .THU...NW winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft. .THU NIGHT...N winds 5 to 10 kt. Seas 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. $$ ANZ237-180415- Block Island Sound- 1058 AM EST Sun Dec 17 2017 .THIS AFTERNOON...NW winds 10 to 15 kt with gusts up to 20 kt, diminishing to 5 to 10 kt. Seas around 2 ft. .TONIGHT...N winds 5 to 10 kt, becoming SE after midnight. Seas around 2 ft. .MON...S winds 5 to 10 kt, becoming W with gusts up to 20 kt in the afternoon. Seas around 2 ft. .MON NIGHT...W winds 5 to 10 kt. Gusts up to 20 kt in the evening. Seas around 2 ft. .TUE...W winds 10 to 15 kt, increasing to 15 to 20 kt in the afternoon. Gusts up to 30 kt. Seas 3 to 5 ft. .TUE NIGHT...W winds 15 to 20 kt with gusts up to 30 kt. Seas 3 to 5 ft. .WED...NW winds 15 to 20 kt with gusts up to 30 kt. Seas 3 to 5 ft. .WED NIGHT...NW winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 4 ft. .THU...NW winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft. .THU NIGHT...NE winds 5 to 10 kt. Seas 1 foot or less. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ230-180415- Boston Harbor- 1058 AM EST Sun Dec 17 2017 .THIS AFTERNOON...NW winds 10 to 15 kt with gusts up to 20 kt, diminishing to 5 to 10 kt. Waves 1 foot or less. .TONIGHT...NW winds 5 to 10 kt, becoming W after midnight. Waves 1 foot or less. .MON...SW winds around 5 kt. Waves 1 foot or less. A chance of light snow. Vsby 1 to 3 NM. .MON NIGHT...W winds around 5 kt. Waves 1 foot or less. .TUE...SW winds 5 to 10 kt. Gusts up to 20 kt in the afternoon. Waves 1 foot or less. .TUE NIGHT...W winds 10 to 15 kt with gusts up to 20 kt. Waves around 2 ft. .WED...W winds 10 to 15 kt with gusts up to 20 kt. Waves around 2 ft. .WED NIGHT...NW winds 10 to 15 kt with gusts up to 20 kt. Waves 1 foot or less. .THU...NW winds 5 to 10 kt. Waves 1 foot or less. .THU NIGHT...NW winds around 5 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. $$ ANZ236-180415- Narragansett Bay- 1058 AM EST Sun Dec 17 2017 .THIS AFTERNOON...NW winds 5 to 10 kt. Gusts up to 20 kt. Waves 1 foot or less. .TONIGHT...N winds 5 to 10 kt, becoming NE after midnight. Waves 1 foot or less. .MON...SE winds around 5 kt, becoming SW around 5 kt in the afternoon. Waves around 2 ft. A chance of light rain. .MON NIGHT...W winds 5 to 10 kt. Waves around 2 ft. .TUE...SW winds 10 to 15 kt with gusts up to 25 kt. Waves 2 to 3 ft. .TUE NIGHT...W winds 10 to 15 kt with gusts up to 25 kt. Waves 2 to 3 ft. .WED...NW winds 15 to 20 kt with gusts up to 25 kt. Waves 2 to 3 ft. .WED NIGHT...NW winds 10 to 15 kt with gusts up to 20 kt. Waves around 2 ft. .THU...NW winds 5 to 10 kt. Waves 1 foot or less. .THU NIGHT...N winds 5 to 10 kt. Waves 1 foot or less. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ 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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