Coastal Waters Forecast
Issued by NWS Boston, MA

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000 FZUS51 KBOX 171216 CWFBOX Coastal Waters Forecast National Weather Service Boston/Norton MA 716 AM EST Sat Nov 17 2018 Coastal waters from the Merrimack River MA to Watch Hill RI out to 25 NM ANZ200-180100- 716 AM EST Sat Nov 17 2018 .Synopsis for Massachusetts and Rhode Island coastal waters... High pressure builds over the waters today and tonight, then moves off to the east Sunday afternoon. A cold front crosses the waters Sunday night and Monday morning. High pressure then rebuilds over the waters during midweek. 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. $$ ANZ250-180100- Coastal waters east of Ipswich Bay and the Stellwagen Bank National Marine Sanctuary- 716 AM EST Sat Nov 17 2018 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH SUNDAY MORNING... .TODAY...W winds 15 to 20 kt, diminishing to 10 to 15 kt this afternoon. Gusts up to 25 kt. Seas 4 to 7 ft. .TONIGHT...W winds 10 to 15 kt, becoming NW 15 to 20 kt after midnight. Gusts up to 25 kt. Seas 3 to 5 ft. .SUN...NW winds 10 to 15 kt with gusts up to 20 kt, becoming W 5 to 10 kt in the afternoon. Seas 2 to 4 ft. .SUN NIGHT...SW winds 5 to 10 kt. Gusts up to 20 kt after midnight. Seas around 2 ft. A chance of rain. Vsby 1 to 3 NM. .MON...SW winds 5 to 10 kt, becoming NW in the afternoon. Seas 2 to 3 ft. A chance of rain. .MON NIGHT...N winds 5 to 10 kt. Seas 2 to 3 ft. A chance of rain and snow showers. Vsby 1 to 3 NM. .TUE...N winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. A chance of rain and snow showers. Vsby 1 to 3 NM. .TUE NIGHT...NW winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to 5 ft. .WED...W winds 10 to 15 kt with gusts up to 25 kt. Seas 3 to 5 ft. .WED NIGHT...W winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 4 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ251-180100- Massachusetts Bay and Ipswich Bay- 716 AM EST Sat Nov 17 2018 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 4 PM EST THIS AFTERNOON... .TODAY...W winds 10 to 15 kt with gusts up to 25 kt. Seas 3 to 5 ft. .TONIGHT...W winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 3 ft. .SUN...NW winds 5 to 10 kt with gusts up to 20 kt, becoming W in the afternoon. Seas 2 to 3 ft. .SUN NIGHT...SW winds 5 to 10 kt. Seas around 2 ft. A chance of rain. Vsby 1 to 3 NM. .MON...SW winds 5 to 10 kt, becoming NW in the afternoon. Seas 1 foot or less. Patchy fog. A chance of rain. Vsby 1 to 3 NM. .MON NIGHT...NW winds 5 to 10 kt. Seas 1 foot or less. A chance of rain and snow showers. Vsby 1 to 3 NM. .TUE...NW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. A chance of snow showers. Vsby 1 to 3 NM. .TUE NIGHT...NW winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 3 ft. .WED...W winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 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. $$ ANZ231-180100- Cape Cod Bay- 716 AM EST Sat Nov 17 2018 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 4 PM EST THIS AFTERNOON... .TODAY...W winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 4 ft. .TONIGHT...W winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. .SUN...NW winds 5 to 10 kt, diminishing to around 5 kt in the afternoon. Seas 2 to 3 ft. .SUN NIGHT...SW winds around 5 kt, increasing to 5 to 10 kt after midnight. Seas 1 foot or less. A chance of rain. .MON...W winds 5 to 10 kt. Seas 1 foot or less. A chance of rain. .MON NIGHT...N winds 5 to 10 kt. Seas 1 foot or less. A chance of showers. Vsby 1 to 3 NM. .TUE...NW winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft. A chance of showers. Vsby 1 to 3 NM. .TUE NIGHT...NW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. .WED...W winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. .WED NIGHT...W winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 3 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ254-180100- Coastal waters from Provincetown MA to Chatham MA to Nantucket MA out 20 nm- 716 AM EST Sat Nov 17 2018 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH SUNDAY MORNING... .TODAY...W winds 10 to 15 kt with gusts up to 25 kt. Seas 4 to 7 ft. .TONIGHT...NW winds 10 to 15 kt with gusts up to 25 kt. Seas 3 to 5 ft. .SUN...NW winds 10 to 15 kt, diminishing to 5 to 10 kt in the afternoon. Seas 2 to 4 ft. .SUN NIGHT...SW winds 5 to 10 kt. Seas 2 to 3 ft. A chance of rain. .MON...SW winds 5 to 10 kt. Seas 2 to 3 ft. A chance of rain. .MON NIGHT...NW winds 5 to 10 kt. Seas 2 to 3 ft. A chance of showers. .TUE...NW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. A chance of showers. .TUE NIGHT...NW winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to 5 ft. .WED...NW winds 10 to 15 kt with gusts up to 25 kt. Seas 3 to 5 ft. .WED NIGHT...W winds 15 to 20 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. $$ ANZ255-180100- Coastal Waters extending out to 25 nm South of Marthas Vineyard and Nantucket- 716 AM EST Sat Nov 17 2018 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH SUNDAY MORNING... .TODAY...W winds 15 to 20 kt, diminishing to 10 to 15 kt this afternoon. Gusts up to 25 kt. Seas 5 to 8 ft. .TONIGHT...NW winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 5 ft. .SUN...N winds 5 to 10 kt, becoming NW in the afternoon. Seas 2 to 4 ft. .SUN NIGHT...SW winds 5 to 10 kt. Seas around 2 ft. .MON...SW winds 5 to 10 kt. Gusts up to 20 kt in the morning. Seas 2 to 3 ft. .MON NIGHT...NW winds 5 to 10 kt. Seas 2 to 3 ft. A chance of showers. .TUE...NW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. A chance of showers. .TUE NIGHT...NW winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 4 ft. .WED...NW winds 10 to 15 kt with gusts up to 25 kt. Seas 3 to 5 ft. .WED NIGHT...W winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to 5 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ256-180100- Coastal Waters from Montauk NY to Marthas Vineyard extending out to 20 nm South of Block Island- 716 AM EST Sat Nov 17 2018 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT... .TODAY...W winds 15 to 20 kt, diminishing to 10 to 15 kt this afternoon. Gusts up to 25 kt. Seas 5 to 8 ft. .TONIGHT...NW winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 5 ft. .SUN...N winds 10 to 15 kt, becoming NW around 5 kt in the afternoon. Seas 2 to 4 ft. .SUN NIGHT...SW winds 5 to 10 kt. Seas 2 to 3 ft. .MON...W winds 5 to 10 kt. Seas 2 to 3 ft. .MON NIGHT...NW winds 5 to 10 kt. Seas 2 to 3 ft. A chance of showers. .TUE...NW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. A chance of showers. .TUE NIGHT...NW winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 4 ft. .WED...NW winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 4 ft. .WED NIGHT...W winds 15 to 20 kt with gusts up to 25 kt. Seas 2 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. $$ ANZ232-180100- Nantucket Sound- 716 AM EST Sat Nov 17 2018 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 4 PM EST THIS AFTERNOON... .TODAY...W winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 4 ft. .TONIGHT...NW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. .SUN...NW winds 5 to 10 kt, diminishing to around 5 kt in the afternoon. Seas around 2 ft. .SUN NIGHT...SW winds around 5 kt, increasing to 5 to 10 kt after midnight. Seas around 2 ft. A chance of rain. .MON...SW winds 5 to 10 kt. Seas around 2 ft. A chance of rain. .MON NIGHT...N winds 5 to 10 kt. Seas 1 foot or less. A chance of showers. .TUE...NW winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft. A chance of showers. Vsby 1 to 3 NM. .TUE NIGHT...NW winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 3 ft. .WED...NW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. .WED NIGHT...W winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 3 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ233-180100- Vineyard Sound- 716 AM EST Sat Nov 17 2018 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 4 PM EST THIS AFTERNOON... .TODAY...W winds 10 to 15 kt with gusts up to 25 kt. Seas 2 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. Seas around 2 ft. A chance of rain. .MON...SW winds 5 to 10 kt, becoming W in the afternoon. Seas around 2 ft. A chance of rain. .MON NIGHT...N winds 5 to 10 kt. Seas 1 foot or less. A chance of showers. Vsby 1 to 3 NM. .TUE...NW winds 10 to 15 kt with gusts up to 20 kt. Seas 1 foot or less. A chance of showers. .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...W 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. $$ ANZ234-180100- Buzzards Bay- 716 AM EST Sat Nov 17 2018 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 4 PM EST THIS AFTERNOON... .TODAY...W winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. .TONIGHT...NW winds 5 to 10 kt with gusts up to 20 kt. Seas 2 to 3 ft. .SUN...NW winds 5 to 10 kt. Seas 1 foot or less. .SUN NIGHT...SW winds around 5 kt, increasing to 5 to 10 kt after midnight. Seas 1 foot or less. A chance of rain. .MON...SW winds 5 to 10 kt, becoming W in the afternoon. Seas 1 foot or less. A chance of rain. .MON NIGHT...N winds 5 to 10 kt. Seas 1 foot or less. A chance of showers. Vsby 1 to 3 NM. .TUE...NW winds 5 to 10 kt with gusts up to 20 kt. Seas 1 foot or less. A chance of showers. Vsby 1 to 3 NM. .TUE NIGHT...NW winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft. .WED...NW winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft. .WED NIGHT...W winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ235-180100- Rhode Island Sound- 716 AM EST Sat Nov 17 2018 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 4 PM EST THIS AFTERNOON... .TODAY...W winds 10 to 15 kt with gusts up to 25 kt. Seas 3 to 5 ft. .TONIGHT...NW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. .SUN...NW winds 5 to 10 kt. Seas 2 to 3 ft. .SUN NIGHT...SW winds 5 to 10 kt. Seas around 2 ft. A chance of rain. .MON...W winds 5 to 10 kt. Seas around 2 ft. A chance of rain. .MON NIGHT...N winds 5 to 10 kt. Seas around 2 ft. A chance of showers. Vsby 1 to 3 NM. .TUE...NW winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft. A chance of showers. Vsby 1 to 3 NM. .TUE NIGHT...NW winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 3 ft. .WED...NW winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 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. $$ ANZ237-180100- Block Island Sound- 716 AM EST Sat Nov 17 2018 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 4 PM EST THIS AFTERNOON... .TODAY...W winds 10 to 15 kt with gusts up to 25 kt. Seas 3 to 5 ft. .TONIGHT...NW winds 10 to 15 kt, diminishing to 5 to 10 kt after midnight. Gusts up to 20 kt. Seas 2 to 4 ft. .SUN...N winds 5 to 10 kt, becoming W in the afternoon. Seas 2 to 3 ft. .SUN NIGHT...SW winds 5 to 10 kt. Seas around 2 ft. A chance of rain. .MON...W winds 5 to 10 kt. Seas around 2 ft. A chance of rain. .MON NIGHT...NW winds 5 to 10 kt. Seas around 2 ft. .TUE...NW winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft. A chance of showers. Vsby 1 to 3 NM. .TUE NIGHT...NW winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 3 ft. .WED...NW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. .WED NIGHT...W winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ230-180100- Boston Harbor- 716 AM EST Sat Nov 17 2018 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 4 PM EST THIS AFTERNOON... .TODAY...W winds 10 to 15 kt with gusts up to 25 kt. Waves around 2 ft. .TONIGHT...W winds 5 to 10 kt with gusts up to 20 kt. Waves around 2 ft. .SUN...NW winds around 5 kt. Waves 1 foot or less. .SUN NIGHT...SW winds 5 to 10 kt. Waves 1 foot or less. A chance of rain. Vsby 1 to 3 NM. .MON...SW winds around 5 kt, becoming NW in the afternoon. Waves 1 foot or less. Patchy fog. A chance of rain. Vsby 1 to 3 NM. .MON NIGHT...NW winds 5 to 10 kt. Waves 1 foot or less. A chance of snow and rain showers. Vsby 1 to 3 NM. .TUE...NW winds 5 to 10 kt. Waves 1 foot or less. A chance of snow showers. Vsby 1 to 3 NM. .TUE NIGHT...NW winds 10 to 15 kt with gusts up to 20 kt. Waves 1 foot or less. .WED...W winds around 10 kt. Waves around 2 ft. .WED NIGHT...W 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. $$ ANZ236-180100- Narragansett Bay- 716 AM EST Sat Nov 17 2018 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 4 PM EST THIS AFTERNOON... .TODAY...W winds 5 to 10 kt with gusts up to 25 kt. Waves 2 to 3 ft. .TONIGHT...NW winds 5 to 10 kt. Waves around 2 ft. .SUN...N winds around 5 kt, becoming W around 5 kt in the afternoon. Waves around 2 ft. .SUN NIGHT...SW winds around 5 kt. Waves around 2 ft. A chance of rain. .MON...W winds 5 to 10 kt. Waves around 2 ft. Patchy fog. A chance of rain. Vsby 1 to 3 NM. .MON NIGHT...N winds 5 to 10 kt. Waves 1 foot or less. Patchy fog. A chance of rain and snow showers. Vsby 1 to 3 NM. .TUE...NW winds 5 to 10 kt. Waves 1 foot or less. A chance of rain and snow showers. Vsby 1 to 3 NM. .TUE NIGHT...NW winds 10 to 15 kt with gusts up to 20 kt. Waves 1 foot or less. .WED...NW winds 5 to 10 kt. Waves 1 foot or less. .WED NIGHT...W winds 5 to 10 kt. Waves 1 foot or less. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ 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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