Coastal Waters Forecast
Issued by NWS Boston, MA

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000 FZUS51 KBOX 170601 CWFBOX Coastal Waters Forecast National Weather Service Boston/Norton MA 101 AM EST Sat Nov 17 2018 Coastal waters from the Merrimack River MA to Watch Hill RI out to 25 NM ANZ200-171830- 101 AM EST Sat Nov 17 2018 .Synopsis for Massachusetts and Rhode Island coastal waters... High pressure builds over the waters for the weekend. A cold front passes across the waters on Sunday. High pressure returns for Monday into Tuesday. 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. $$ ANZ250-171830- Coastal waters east of Ipswich Bay and the Stellwagen Bank National Marine Sanctuary- 101 AM EST Sat Nov 17 2018 ...GALE WARNING IN EFFECT UNTIL 4 AM EST EARLY THIS MORNING... .TODAY...W winds 15 to 20 kt, diminishing to 10 to 15 kt this afternoon. Gusts up to 35 kt early morning. Seas around 8 ft, subsiding to 6 ft this afternoon. .TONIGHT...W winds 10 to 15 kt, becoming NW 15 to 20 kt after midnight. Gusts up to 25 kt. Seas around 5 ft. .SUN...NW winds 10 to 15 kt with gusts up to 20 kt, becoming W 5 to 10 kt in the afternoon. Seas 3 to 4 ft. .SUN NIGHT...SW winds 5 to 10 kt. Seas 2 to 3 ft. A chance of rain. Vsby 1 to 3 NM in the evening. .MON...W winds 5 to 10 kt. Gusts up to 20 kt in the morning. Seas around 4 ft. A chance of rain in the morning. .MON NIGHT...NW winds 10 to 15 kt. Seas around 4 ft. .TUE...NW winds 10 to 15 kt with gusts up to 25 kt. Seas around 4 ft. .TUE NIGHT...NW winds 15 to 20 kt with gusts up to 30 kt. Seas 5 to 6 ft. .WED...NW winds 15 to 20 kt, diminishing to 10 to 15 kt in the afternoon. Gusts up to 25 kt. Seas 5 to 6 ft. .WED NIGHT...W winds 10 to 15 kt with gusts up to 25 kt. Seas 3 to 4 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ251-171830- Massachusetts Bay and Ipswich Bay- 101 AM EST Sat Nov 17 2018 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL NOON EST TODAY... .TODAY...W winds 10 to 15 kt with gusts up to 25 kt. Seas 4 to 5 ft. .TONIGHT...W winds 10 to 15 kt with gusts up to 20 kt. Seas around 3 ft. .SUN...NW winds 5 to 10 kt, becoming W in the afternoon. Seas around 2 ft. .SUN NIGHT...SW winds 5 to 10 kt. Seas around 2 ft. A chance of rain. Vsby 1 to 3 NM after midnight. .MON...W winds 5 to 10 kt. Seas around 2 ft. A chance of rain in the morning with vsby 1 to 3 NM. .MON NIGHT...W winds 10 to 15 kt, becoming NW 5 to 10 kt after midnight. Seas around 3 ft. .TUE...NW winds 5 to 10 kt, increasing to 10 to 15 kt with gusts up to 20 kt in the afternoon. Seas 2 to 3 ft. .TUE NIGHT...NW winds 10 to 15 kt with gusts up to 25 kt. Seas 3 to 4 ft. .WED...NW winds 10 to 15 kt with gusts up to 20 kt. Seas around 4 ft. .WED NIGHT...W winds 10 to 15 kt with gusts up to 20 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. $$ ANZ231-171830- Cape Cod Bay- 101 AM EST Sat Nov 17 2018 ...GALE WARNING IN EFFECT UNTIL 4 AM EST EARLY THIS MORNING... .TODAY...W winds 10 to 15 kt with gusts up to 35 kt early morning. Seas 3 to 4 ft. .TONIGHT...W winds 10 to 15 kt with gusts up to 20 kt. Seas around 3 ft. .SUN...NW winds 5 to 10 kt, diminishing to around 5 kt in the afternoon. Seas around 2 ft. .SUN NIGHT...SW winds around 5 kt, increasing to 5 to 10 kt after midnight. Seas 1 foot or less. A chance of rain. .MON...W winds 5 to 10 kt. Seas 1 foot or less, then around 2 ft in the afternoon. A chance of rain in the morning. .MON NIGHT...NW winds 5 to 10 kt. Seas around 3 ft. .TUE...NW winds 5 to 10 kt, increasing to 10 to 15 kt in the afternoon. Gusts up to 25 kt. Seas around 3 ft. .TUE NIGHT...NW winds 10 to 15 kt with gusts up to 25 kt. Seas around 4 ft. .WED...NW winds 10 to 15 kt with gusts up to 25 kt. Seas around 4 ft. .WED NIGHT...W winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ254-171830- Coastal waters from Provincetown MA to Chatham MA to Nantucket MA out 20 nm- 101 AM EST Sat Nov 17 2018 ...GALE WARNING IN EFFECT UNTIL 4 AM EST EARLY THIS MORNING... .TODAY...W winds 15 to 20 kt, diminishing to 10 to 15 kt this afternoon. Gusts up to 35 kt early morning. Seas around 8 ft, subsiding to 6 ft this afternoon. .TONIGHT...NW winds 10 to 15 kt with gusts up to 25 kt. Seas around 5 ft. .SUN...NW winds 10 to 15 kt, diminishing to 5 to 10 kt in the afternoon. Seas 3 to 4 ft. .SUN NIGHT...S winds 5 to 10 kt. Seas around 3 ft. A chance of rain after midnight. .MON...W winds 10 to 15 kt with gusts up to 20 kt. Seas around 4 ft. .MON NIGHT...NW winds 10 to 15 kt. Seas 4 to 5 ft. .TUE...NW winds 5 to 10 kt, increasing to 10 to 15 kt in the afternoon. Gusts up to 25 kt. Seas 4 to 5 ft. .TUE NIGHT...NW winds 15 to 20 kt with gusts up to 30 kt. Seas around 5 ft, building to 7 ft after midnight. .WED...NW winds 10 to 15 kt with gusts up to 25 kt. Seas around 7 ft. .WED NIGHT...NW winds 10 to 15 kt with gusts up to 25 kt. Seas 4 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. $$ ANZ255-171830- Coastal Waters extending out to 25 nm South of Marthas Vineyard and Nantucket- 101 AM EST Sat Nov 17 2018 ...GALE WARNING IN EFFECT UNTIL 4 AM EST EARLY THIS MORNING... .TODAY...W winds 15 to 20 kt, diminishing to 10 to 15 kt this afternoon. Gusts up to 35 kt early morning. Seas around 8 ft, subsiding to 6 ft this afternoon. .TONIGHT...NW winds 10 to 15 kt with gusts up to 20 kt. Seas 4 to 5 ft. .SUN...N winds 5 to 10 kt, becoming NW in the afternoon. Seas around 3 ft. .SUN NIGHT...S winds 5 to 10 kt. Gusts up to 20 kt after midnight. Seas around 3 ft. .MON...W winds 10 to 15 kt with gusts up to 20 kt. Seas around 4 ft. .MON NIGHT...NW winds 10 to 15 kt with gusts up to 20 kt. Seas around 5 ft. .TUE...NW winds 10 to 15 kt with gusts up to 25 kt. Seas around 4 ft. .TUE NIGHT...NW winds 15 to 20 kt with gusts up to 25 kt. Seas around 5 ft. .WED...N winds around 15 kt with gusts up to 25 kt. Seas around 5 ft. .WED NIGHT...NW winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 4 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ256-171830- Coastal Waters from Montauk NY to Marthas Vineyard extending out to 20 nm South of Block Island- 101 AM EST Sat Nov 17 2018 ...GALE WARNING IN EFFECT UNTIL 4 AM EST EARLY THIS MORNING... .TODAY...W winds 15 to 20 kt, diminishing to 10 to 15 kt this afternoon. Gusts up to 35 kt early morning. Seas around 8 ft, subsiding to 6 ft this afternoon. .TONIGHT...NW winds 10 to 15 kt with gusts up to 20 kt. Seas around 4 ft. .SUN...N winds 10 to 15 kt, becoming NW around 5 kt in the afternoon. Seas around 3 ft. .SUN NIGHT...S winds 5 to 10 kt, becoming SW 10 to 15 kt with gusts up to 20 kt after midnight. Seas 3 to 4 ft. .MON...W winds 10 to 15 kt with gusts up to 20 kt. Seas 4 to 5 ft. .MON NIGHT...NW winds 10 to 15 kt with gusts up to 20 kt. Seas 4 to 5 ft. .TUE...NW winds 10 to 15 kt with gusts up to 25 kt. Seas around 4 ft. .TUE NIGHT...NW winds 10 to 15 kt, increasing to 15 to 20 kt after midnight. Gusts up to 25 kt. Seas around 4 ft. .WED...N winds 10 to 15 kt with gusts up to 25 kt. Seas 3 to 4 ft. .WED NIGHT...NW winds 10 to 15 kt with gusts up to 20 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. $$ ANZ232-171830- Nantucket Sound- 101 AM EST Sat Nov 17 2018 ...GALE WARNING IN EFFECT UNTIL 4 AM EST EARLY THIS MORNING... .TODAY...W winds 10 to 15 kt with gusts up to 35 kt early morning. Seas 3 to 4 ft. .TONIGHT...NW winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft. .SUN...NW winds 5 to 10 kt, diminishing to around 5 kt in the afternoon. Seas around 2 ft. .SUN NIGHT...S winds around 5 kt, becoming SW after midnight. Seas 1 foot or less, then around 2 ft after midnight. A chance of rain in the evening. .MON...W winds 5 to 10 kt with gusts up to 20 kt. Seas around 2 ft. .MON NIGHT...NW winds 5 to 10 kt. Seas around 3 ft. .TUE...NW winds 5 to 10 kt, increasing to 10 to 15 kt in the afternoon. Gusts up to 25 kt. Seas around 3 ft. .TUE NIGHT...NW winds 10 to 15 kt, increasing to 15 to 20 kt after midnight. Gusts up to 25 kt. Seas around 3 ft. .WED...NW winds 10 to 15 kt with gusts up to 20 kt. Seas around 3 ft. .WED NIGHT...NW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ233-171830- Vineyard Sound- 101 AM EST Sat Nov 17 2018 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL NOON EST TODAY... .TODAY...W winds 10 to 15 kt with gusts up to 25 kt. Seas 3 to 4 ft. .TONIGHT...NW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. .SUN...NW winds 5 to 10 kt. Seas around 2 ft. .SUN NIGHT...SW winds 5 to 10 kt. Gusts up to 20 kt after midnight. Seas 1 foot or less, then around 2 ft after midnight. .MON...W winds around 10 kt with gusts up to 20 kt. Seas 2 to 3 ft. .MON NIGHT...NW winds around 10 kt. Seas around 3 ft. .TUE...NW winds 10 to 15 kt with gusts up to 25 kt. Seas around 2 ft. .TUE NIGHT...NW winds 10 to 15 kt with gusts up to 25 kt. Seas around 3 ft. .WED...NW winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft. .WED NIGHT...NW winds 10 to 15 kt with gusts up to 20 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. $$ ANZ234-171830- Buzzards Bay- 101 AM EST Sat Nov 17 2018 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL NOON EST TODAY... .TODAY...W winds 10 to 15 kt, diminishing to 5 to 10 kt this afternoon. Gusts up to 25 kt. Seas 2 to 3 ft. .TONIGHT...NW winds 5 to 10 kt with gusts up to 20 kt. Seas around 2 ft. .SUN...NW winds 5 to 10 kt. Seas 1 foot or less. .SUN NIGHT...SW winds 5 to 10 kt. Seas 1 foot or less, then around 2 ft after midnight. A chance of rain in the evening. .MON...W winds 5 to 10 kt. Seas around 2 ft. A chance of rain in the morning. .MON NIGHT...NW winds 5 to 10 kt. Seas around 2 ft. .TUE...NW winds 5 to 10 kt with gusts up to 20 kt. Seas around 2 ft. .TUE NIGHT...NW winds 10 to 15 kt with gusts up to 25 kt. Seas around 2 ft. .WED...NW winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft. .WED NIGHT...NW winds 5 to 10 kt with gusts up to 20 kt. Seas around 2 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ235-171830- Rhode Island Sound- 101 AM EST Sat Nov 17 2018 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL NOON EST TODAY... .TODAY...W winds 15 to 20 kt, diminishing to 10 to 15 kt this afternoon. Gusts up to 25 kt. Seas 5 to 6 ft. .TONIGHT...NW winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 4 ft. .SUN...NW winds 5 to 10 kt. Seas 2 to 3 ft. .SUN NIGHT...SW winds 5 to 10 kt. Gusts up to 20 kt after midnight. Seas 2 to 3 ft. .MON...SW winds 5 to 10 kt, becoming W 10 to 15 kt in the afternoon. Gusts up to 20 kt. Seas around 3 ft. .MON NIGHT...NW winds 10 to 15 kt. Seas around 3 ft. .TUE...NW winds 10 to 15 kt with gusts up to 25 kt. Seas around 3 ft. .TUE NIGHT...NW winds 10 to 15 kt with gusts up to 25 kt. Seas around 3 ft. .WED...N winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 3 ft. .WED NIGHT...NW winds 10 to 15 kt with gusts up to 20 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. $$ ANZ237-171830- Block Island Sound- 101 AM EST Sat Nov 17 2018 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL NOON EST TODAY... .TODAY...W winds 10 to 15 kt with gusts up to 25 kt. Seas 4 to 5 ft. .TONIGHT...NW winds 10 to 15 kt, diminishing to 5 to 10 kt after midnight. Gusts up to 20 kt. Seas around 3 ft. .SUN...N winds 5 to 10 kt, becoming W in the afternoon. Seas 2 to 3 ft. .SUN NIGHT...SW winds 5 to 10 kt. Seas 2 to 3 ft. .MON...W winds 5 to 10 kt with gusts up to 20 kt. Seas around 3 ft. .MON NIGHT...NW winds 5 to 10 kt. Seas around 3 ft. .TUE...NW winds 5 to 10 kt, increasing to 10 to 15 kt in the afternoon. Gusts up to 25 kt. Seas around 3 ft. .TUE NIGHT...NW winds 10 to 15 kt with gusts up to 25 kt. Seas around 3 ft. .WED...NW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. .WED NIGHT...NW winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ230-171830- Boston Harbor- 101 AM EST Sat Nov 17 2018 .TODAY...W winds around 10 kt with gusts up to 20 kt. Waves around 2 ft. .TONIGHT...W winds 5 to 10 kt with gusts up to 20 kt. Waves around 2 ft. .SUN...W winds 5 to 10 kt. Waves 1 foot or less. .SUN NIGHT...SW winds around 5 kt. Waves 1 foot or less. A chance of rain. .MON...W winds around 5 kt. Waves 1 foot or less. A chance of rain in the morning. .MON NIGHT...W winds 5 to 10 kt. Waves 1 foot or less. .TUE...NW winds 5 to 10 kt. Gusts up to 20 kt in the afternoon. Waves 1 foot or less, then around 2 ft in the afternoon. .TUE NIGHT...NW winds 10 to 15 kt with gusts up to 20 kt. Waves around 2 ft. .WED...NW winds around 10 kt. Gusts up to 20 kt in the morning. Waves around 2 ft in the morning, then 1 foot or less. .WED NIGHT...W winds around 10 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. $$ ANZ236-171830- Narragansett Bay- 101 AM EST Sat Nov 17 2018 .TODAY...W winds 5 to 10 kt with gusts up to 20 kt. Waves around 3 ft. .TONIGHT...NW winds 5 to 10 kt. Waves around 2 ft. .SUN...N winds around 5 kt, becoming W around 5 kt in the afternoon. Waves around 2 ft. .SUN NIGHT...S winds around 5 kt, becoming SW after midnight. Waves around 2 ft. A chance of rain. .MON...W winds 5 to 10 kt. Waves around 2 ft. A chance of rain in the morning. .MON NIGHT...NW winds 5 to 10 kt. Waves around 2 ft. .TUE...NW winds 5 to 10 kt. Gusts up to 20 kt in the afternoon. Waves around 2 ft. .TUE NIGHT...NW winds around 10 kt with gusts up to 20 kt. Waves around 2 ft. .WED...NW winds 5 to 10 kt. Waves around 2 ft in the morning, then 1 foot or less. .WED NIGHT...NW winds 5 to 10 kt. Waves 1 foot or less. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ 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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