Coastal Waters Forecast
Issued by NWS Boston, MA

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000 FZUS51 KBOX 171817 CWFBOX Coastal Waters Forecast National Weather Service Taunton MA 117 PM EST Sun Dec 17 2017 Coastal waters from the Merrimack River MA to Watch Hill RI out to 25 NM ANZ200-180700- 117 PM 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. $$ ANZ250-180700- Coastal waters east of Ipswich Bay and the Stellwagen Bank National Marine Sanctuary- 117 PM EST Sun Dec 17 2017 .THIS AFTERNOON...NW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. .TONIGHT...NW winds 5 to 10 kt, diminishing to around 5 kt after midnight. Seas around 2 ft. .MON...SW winds 5 to 10 kt. Seas around 2 ft. Scattered flurries with a chance of sprinkles. Vsby 1 to 3 NM. .MON NIGHT...W winds 10 to 15 kt. Seas around 2 ft. A chance of sprinkles. .TUE...SW winds 10 to 15 kt, increasing to 15 to 20 kt in the afternoon. Gusts up to 25 kt. Seas 2 to 4 ft. .TUE NIGHT...W winds 20 to 25 kt with gusts up to 30 kt. Seas 3 to 5 ft. .WED...NW winds 20 to 25 kt with gusts up to 30 kt. Seas 4 to 7 ft. .WED NIGHT...NW winds 20 to 25 kt with gusts up to 30 kt. Seas 3 to 5 ft. .THU...NW winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 4 ft. .THU NIGHT...W winds 5 to 10 kt. Seas around 2 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ251-180700- Massachusetts Bay and Ipswich Bay- 117 PM EST Sun Dec 17 2017 .THIS AFTERNOON...NW winds 10 to 15 kt. Seas around 2 ft. .TONIGHT...NW winds 5 to 10 kt. Seas around 2 ft. .MON...SW winds around 5 kt, increasing to 5 to 10 kt in the afternoon. Seas 1 foot or less. A chance of sprinkles, flurries and light freezing rain. Vsby 1 to 3 NM. .MON NIGHT...SW winds 5 to 10 kt, becoming W 10 to 15 kt after midnight. Seas 1 foot or less. A chance of sprinkles and light freezing rain. .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. $$ ANZ231-180700- Cape Cod Bay- 117 PM EST Sun Dec 17 2017 .THIS AFTERNOON...NW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. .TONIGHT...NW winds 5 to 10 kt, diminishing to around 5 kt after midnight. Seas around 2 ft. .MON...SW winds around 5 kt, becoming S in the afternoon. Seas 1 foot or less. A chance of sprinkles. .MON NIGHT...SW winds 5 to 10 kt. Seas 1 foot or less. .TUE...SW winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 4 ft. .TUE NIGHT...W winds 15 to 20 kt with gusts up to 30 kt. Seas 2 to 4 ft. .WED...NW winds 15 to 20 kt with gusts up to 30 kt. Seas 2 to 4 ft. .WED NIGHT...NW winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 4 ft. .THU...NW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. .THU NIGHT...W winds 5 to 10 kt. Seas 1 foot or less. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ254-180700- Coastal waters from Provincetown MA to Chatham MA to Nantucket MA out 20 nm- 117 PM EST Sun Dec 17 2017 .THIS AFTERNOON...NW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. .TONIGHT...NW winds 5 to 10 kt, diminishing to around 5 kt after midnight. Seas 2 to 3 ft. .MON...SW winds around 5 kt, becoming S in the afternoon. Seas 2 to 3 ft. A chance of sprinkles. .MON NIGHT...S winds 5 to 10 kt, becoming W 10 to 15 kt after midnight. Gusts up to 20 kt. Seas 2 to 3 ft. .TUE...W winds 10 to 15 kt, becoming SW 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. $$ ANZ255-180700- Coastal Waters extending out to 25 nm South of Marthas Vineyard and Nantucket- 117 PM EST Sun Dec 17 2017 .THIS AFTERNOON...NW winds 5 to 10 kt. Seas 2 to 4 ft. .TONIGHT...N winds 5 to 10 kt, becoming NE after midnight. Seas 2 to 3 ft. .MON...SE winds 5 to 10 kt. Seas 2 to 3 ft. Scattered flurries. .MON NIGHT...SW winds 5 to 10 kt, becoming W 10 to 15 kt after midnight. Gusts up to 20 kt. Seas 2 to 4 ft. .TUE...W winds 10 to 15 kt, increasing to 15 to 20 kt in the afternoon. Gusts up to 30 kt. Seas 3 to 5 ft. .TUE NIGHT...W winds 15 to 20 kt, increasing to 20 to 25 kt after midnight. Gusts up to 30 kt. Seas 5 to 8 ft. .WED...NW winds 20 to 25 kt with gusts up to 35 kt. Seas 5 to 8 ft. .WED NIGHT...NW winds 15 to 20 kt with gusts up to 30 kt. Seas 4 to 6 ft. .THU...NW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. .THU NIGHT...NW winds 5 to 10 kt. Seas 2 to 3 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ256-180700- Coastal Waters from Montauk NY to Marthas Vineyard extending out to 20 nm South of Block Island- 117 PM EST Sun Dec 17 2017 .THIS AFTERNOON...NW winds 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...SE winds 5 to 10 kt. Seas 2 to 3 ft. Scattered sprinkles. .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. $$ ANZ232-180700- Nantucket Sound- 117 PM EST Sun Dec 17 2017 .THIS AFTERNOON...NW winds 5 to 10 kt. Seas around 2 ft. .TONIGHT...NW winds 5 to 10 kt, becoming N after midnight. Seas 1 foot or less. .MON...E winds around 5 kt, becoming SE in the afternoon. Seas around 2 ft. .MON NIGHT...W winds 5 to 10 kt. Seas around 2 ft. .TUE...W winds 10 to 15 kt, increasing to 15 to 20 kt in the afternoon. Gusts up to 30 kt. Seas 2 to 3 ft. .TUE NIGHT...W winds 15 to 20 kt with gusts up to 30 kt. Seas 2 to 4 ft. .WED...NW winds 20 to 25 kt with gusts up to 30 kt. Seas 2 to 4 ft. .WED NIGHT...NW winds 15 to 20 kt with gusts up to 30 kt. Seas 2 to 4 ft. .THU...NW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. .THU NIGHT...W winds 5 to 10 kt. Seas 1 foot or less. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ233-180700- Vineyard Sound- 117 PM EST Sun Dec 17 2017 .THIS AFTERNOON...NW winds 5 to 10 kt. Seas 1 foot or less. .TONIGHT...NE winds around 5 kt. Seas 1 foot or less. .MON...SE winds around 5 kt. Seas around 2 ft. Scattered flurries. .MON NIGHT...SW winds 5 to 10 kt, becoming W 10 to 15 kt with gusts up to 20 kt after midnight. 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. $$ ANZ234-180700- Buzzards Bay- 117 PM EST Sun Dec 17 2017 .THIS AFTERNOON...NW winds 5 to 10 kt. Seas 1 foot or less. .TONIGHT...N winds around 5 kt. Seas 1 foot or less. Scattered flurries. .MON...SE winds around 5 kt. Seas 1 foot or less. .MON NIGHT...W winds 5 to 10 kt. Seas 1 foot or less. .TUE...W winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 4 ft. .TUE NIGHT...W winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 4 ft. .WED...NW winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 3 ft. .WED NIGHT...NW winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 3 ft. .THU...NW winds 5 to 10 kt with gusts up to 20 kt. Seas 1 foot or less. .THU NIGHT...NW winds 5 to 10 kt. Seas 1 foot or less. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ235-180700- Rhode Island Sound- 117 PM EST Sun Dec 17 2017 .THIS AFTERNOON...NW winds 5 to 10 kt. Seas around 2 ft. .TONIGHT...N winds around 5 kt, becoming NE after midnight. Seas around 2 ft. Scattered flurries. .MON...SE winds 5 to 10 kt. Seas 2 to 3 ft. Scattered flurries. .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 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. $$ ANZ237-180700- Block Island Sound- 117 PM EST Sun Dec 17 2017 .THIS AFTERNOON...NW winds 5 to 10 kt. Seas around 2 ft. .TONIGHT...N winds around 5 kt, becoming NE around 5 kt after midnight. Seas around 2 ft. Scattered flurries. .MON...E winds 5 to 10 kt, becoming S in the afternoon. Seas around 2 ft. .MON NIGHT...W winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft. .TUE...W winds 10 to 15 kt, increasing to 15 to 20 kt in the afternoon. Gusts up to 30 kt. Seas 3 to 5 ft. .TUE NIGHT...W winds 15 to 20 kt with gusts up to 30 kt. Seas 3 to 5 ft. .WED...NW winds 15 to 20 kt with gusts up to 30 kt. Seas 3 to 5 ft. .WED NIGHT...NW winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 4 ft. .THU...NW winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft. .THU NIGHT...NE winds 5 to 10 kt. Seas 1 foot or less. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ230-180700- Boston Harbor- 117 PM EST Sun Dec 17 2017 .THIS AFTERNOON...NW winds 5 to 10 kt. Waves 1 foot or less. .TONIGHT...NW winds 5 to 10 kt. Waves 1 foot or less. .MON...SW winds around 5 kt. Waves 1 foot or less. A chance of sprinkles and flurries. .MON NIGHT...SW winds 5 to 10 kt. Waves 1 foot or less. A chance of sprinkles. .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. $$ ANZ236-180700- Narragansett Bay- 117 PM EST Sun Dec 17 2017 .THIS AFTERNOON...NW winds 5 to 10 kt. Waves 1 foot or less. .TONIGHT...NE winds around 5 kt. Waves 1 foot or less. Scattered flurries. .MON...SE winds around 5 kt. Waves around 2 ft. .MON NIGHT...W winds 5 to 10 kt. Waves around 2 ft. .TUE...W winds 10 to 15 kt with gusts up to 25 kt. Waves 2 to 3 ft. .TUE NIGHT...W winds 10 to 15 kt with gusts up to 25 kt. Waves 2 to 3 ft. .WED...NW winds 15 to 20 kt with gusts up to 25 kt. Waves 2 to 3 ft. .WED NIGHT...NW winds 10 to 15 kt with gusts up to 20 kt. Waves around 2 ft. .THU...NW winds 5 to 10 kt. Waves 1 foot or less. .THU NIGHT...N winds 5 to 10 kt. Waves 1 foot or less. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ 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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