Coastal Waters Forecast
Issued by NWS Boston, MA

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000 FZUS51 KBOX 181216 CWFBOX Coastal Waters Forecast National Weather Service Boston/Norton MA 716 AM EST Sun Nov 18 2018 Coastal waters from the Merrimack River MA to Watch Hill RI out to 25 NM ANZ200-190100- 716 AM EST Sun Nov 18 2018 .Synopsis for Massachusetts and Rhode Island coastal waters... High pressure over the waters this morning moves off to the east by evening. A couple of low pressure centers move up from the Midwest today and spread light rain across the waters tonight and Monday morning. A cold front then sweeps the rain out to sea by Monday evening. Low pressure passes across the waters Tuesday bringing another chance of rain. High pressure then builds cold and dry weather for Wednesday and Thanksgiving Day. 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. $$ ANZ250-190100- Coastal waters east of Ipswich Bay and the Stellwagen Bank National Marine Sanctuary- 716 AM EST Sun Nov 18 2018 .TODAY...NW winds 10 to 15 kt with gusts up to 20 kt, becoming W around 5 kt this afternoon. Seas 2 to 4 ft. .TONIGHT...SW winds 5 to 10 kt. Seas 2 to 3 ft. Rain likely. .MON...S winds 5 to 10 kt, becoming W in the afternoon. Seas 2 to 4 ft. A chance of rain. .MON NIGHT...N winds 5 to 10 kt. Seas 2 to 3 ft. A chance of rain. .TUE...NE winds 5 to 10 kt, increasing to 10 to 15 kt with gusts up to 20 kt in the afternoon. Seas 2 to 4 ft. Rain likely. .TUE NIGHT...N winds 15 to 20 kt, becoming NW 10 to 15 kt after midnight. Gusts up to 25 kt. Seas 3 to 5 ft. A chance of rain. .WED...W winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to 5 ft. .WED NIGHT...W winds 20 to 25 kt with gusts up to 35 kt. Seas 3 to 5 ft. .THU...NW winds 20 to 25 kt with gusts up to 35 kt. Seas 4 to 6 ft. .THU NIGHT...NW winds 20 to 25 kt with gusts up to 35 kt. Seas 4 to 6 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ251-190100- Massachusetts Bay and Ipswich Bay- 716 AM EST Sun Nov 18 2018 .TODAY...NW winds 5 to 10 kt with gusts up to 20 kt, becoming W this afternoon. Seas around 2 ft. .TONIGHT...S winds 5 to 10 kt. Seas around 2 ft. Rain likely. .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 around 2 ft. A chance of rain. Vsby 1 to 3 NM. .TUE...NE winds 5 to 10 kt, becoming N 10 to 15 kt with gusts up to 20 kt in the afternoon. Seas 2 to 3 ft. Rain likely. 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 25 kt. Seas 2 to 3 ft. .WED NIGHT...W winds 15 to 20 kt with gusts up to 30 kt. Seas 2 to 3 ft. .THU...NW winds 15 to 20 kt with gusts up to 30 kt. Seas 2 to 4 ft. .THU NIGHT...NW winds 15 to 20 kt with gusts up to 30 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. $$ ANZ231-190100- Cape Cod Bay- 716 AM EST Sun Nov 18 2018 .TODAY...NW winds 5 to 10 kt, becoming W this afternoon. Seas around 2 ft. .TONIGHT...S winds around 5 kt, increasing to 5 to 10 kt after midnight. Seas 1 foot or less. A chance of rain. .MON...S winds 5 to 10 kt, becoming W in the afternoon. Seas around 2 ft. A chance of rain. .MON NIGHT...N winds 5 to 10 kt. Seas 1 foot or less. A chance of rain. .TUE...NE winds 5 to 10 kt, increasing to 10 to 15 kt with gusts up to 20 kt in the afternoon. Seas around 2 ft. Rain. .TUE NIGHT...NW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. A chance of rain. .WED...W winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 3 ft. .WED NIGHT...W winds 20 to 25 kt with gusts up to 30 kt. Seas 2 to 4 ft. .THU...NW winds 20 to 25 kt with gusts up to 35 kt. Seas 3 to 5 ft. .THU NIGHT...NW winds 15 to 20 kt with gusts up to 30 kt. Seas 3 to 5 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ254-190100- Coastal waters from Provincetown MA to Chatham MA to Nantucket MA out 20 nm- 716 AM EST Sun Nov 18 2018 .TODAY...NW winds 10 to 15 kt with gusts up to 20 kt, diminishing to around 5 kt this afternoon. Seas 2 to 4 ft. .TONIGHT...SW winds around 5 kt, becoming S after midnight. Seas around 2 ft. .MON...SW winds 5 to 10 kt. Gusts up to 20 kt in the afternoon. Seas 2 to 4 ft. A chance of rain. .MON NIGHT...NW winds 5 to 10 kt, becoming N after midnight. Seas 2 to 3 ft. A chance of rain. .TUE...E winds 5 to 10 kt, becoming NE 10 to 15 kt with gusts up to 20 kt in the afternoon. Seas 2 to 4 ft. Rain likely. .TUE NIGHT...NW winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to 5 ft. A chance of rain. .WED...W winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to 5 ft. .WED NIGHT...W winds 20 to 25 kt with gusts up to 35 kt. Seas 3 to 5 ft. .THU...NW winds 20 to 25 kt with gusts up to 35 kt. Seas 4 to 7 ft. A chance of snow showers. .THU NIGHT...NW winds 20 to 25 kt with gusts up to 35 kt. Seas 4 to 7 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. $$ ANZ255-190100- Coastal Waters extending out to 25 nm South of Marthas Vineyard and Nantucket- 716 AM EST Sun Nov 18 2018 .TODAY...N winds 5 to 10 kt with gusts up to 20 kt, becoming NE this afternoon. Seas 2 to 4 ft. .TONIGHT...S winds 5 to 10 kt. Seas around 2 ft. .MON...SW winds 5 to 10 kt. Seas 2 to 3 ft. .MON NIGHT...W winds 5 to 10 kt, becoming N after midnight. Seas 2 to 3 ft. A chance of rain. .TUE...E winds 5 to 10 kt, becoming N 10 to 15 kt with gusts up to 25 kt in the afternoon. Seas 2 to 4 ft. Rain likely. .TUE NIGHT...NW winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to 5 ft. .WED...W winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to 5 ft. .WED NIGHT...NW winds 20 to 25 kt with gusts up to 35 kt. Seas 3 to 5 ft. .THU...NW winds 20 to 25 kt with gusts up to 35 kt. Seas 4 to 6 ft. .THU NIGHT...NW winds 20 to 25 kt with gusts up to 30 kt. Seas 4 to 6 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ256-190100- Coastal Waters from Montauk NY to Marthas Vineyard extending out to 20 nm South of Block Island- 716 AM EST Sun Nov 18 2018 .TODAY...N winds 5 to 10 kt with gusts up to 20 kt, becoming E this afternoon. Seas 2 to 3 ft. .TONIGHT...S winds 5 to 10 kt. Seas 2 to 3 ft. .MON...SW winds 5 to 10 kt. Gusts up to 20 kt in the afternoon. Seas 3 to 4 ft. .MON NIGHT...NW winds 5 to 10 kt, becoming N after midnight. Seas 2 to 3 ft. A chance of rain. .TUE...E winds around 10 kt, becoming N 15 to 20 kt in the afternoon. Gusts up to 25 kt. Seas 2 to 4 ft. Rain likely. .TUE NIGHT...NW winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to 5 ft. .WED...W winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to 5 ft. .WED NIGHT...NW winds 20 to 25 kt with gusts up to 35 kt. Seas 3 to 5 ft. .THU...NW winds 20 to 25 kt with gusts up to 35 kt. Seas 3 to 5 ft. .THU NIGHT...N winds 20 to 25 kt with gusts up to 30 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. $$ ANZ232-190100- Nantucket Sound- 716 AM EST Sun Nov 18 2018 .TODAY...N winds 5 to 10 kt with gusts up to 20 kt, becoming S this afternoon. Seas around 2 ft. .TONIGHT...S winds around 5 kt, increasing to 5 to 10 kt after midnight. Seas around 2 ft. .MON...SW winds 5 to 10 kt. Seas 2 to 3 ft. A chance of rain. .MON NIGHT...N winds 5 to 10 kt. Seas 1 foot or less. A chance of rain. .TUE...E winds 5 to 10 kt, becoming NE 10 to 15 kt with gusts up to 20 kt in the afternoon. Seas 2 to 3 ft. Rain likely. .TUE NIGHT...NW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. A chance of rain. .WED...W winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 3 ft. .WED NIGHT...NW winds 20 to 25 kt with gusts up to 30 kt. Seas 2 to 4 ft. .THU...NW winds 20 to 25 kt with gusts up to 30 kt. Seas 2 to 4 ft. .THU NIGHT...NW winds 20 to 25 kt with gusts up to 30 kt. Seas 2 to 4 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ233-190100- Vineyard Sound- 716 AM EST Sun Nov 18 2018 .TODAY...N winds 5 to 10 kt, becoming E this afternoon. Seas around 2 ft. .TONIGHT...S winds 5 to 10 kt. Seas around 2 ft. .MON...SW winds 5 to 10 kt. Seas 2 to 3 ft. A chance of rain. .MON NIGHT...N winds 5 to 10 kt. Seas around 2 ft. A chance of rain. .TUE...NE winds 5 to 10 kt, becoming N 10 to 15 kt with gusts up to 20 kt in the afternoon. Seas 2 to 3 ft. Rain. .TUE NIGHT...NW winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft. .WED...W winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 3 ft. .WED NIGHT...NW winds 15 to 20 kt with gusts up to 30 kt. Seas 2 to 4 ft. .THU...NW winds around 20 kt with gusts up to 30 kt. Seas 2 to 3 ft. .THU NIGHT...NW winds 15 to 20 kt with gusts up to 30 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. $$ ANZ234-190100- Buzzards Bay- 716 AM EST Sun Nov 18 2018 .TODAY...N winds 5 to 10 kt, becoming SE this afternoon. Seas 1 foot or less. .TONIGHT...S winds 5 to 10 kt. Seas 1 foot or less. A chance of rain. .MON...SW winds 5 to 10 kt. Seas around 2 ft. A chance of rain. .MON NIGHT...N winds 5 to 10 kt. Seas 1 foot or less. A chance of rain. .TUE...NE winds 5 to 10 kt, becoming N 10 to 15 kt with gusts up to 20 kt in the afternoon. Seas 1 foot or less. Rain. .TUE NIGHT...NW winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft. .WED...W winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft. .WED NIGHT...NW winds 15 to 20 kt with gusts up to 30 kt. Seas around 2 ft. .THU...NW winds 15 to 20 kt with gusts up to 30 kt. Seas 2 to 3 ft. .THU NIGHT...NW winds 15 to 20 kt with gusts up to 30 kt. Seas 2 to 3 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ235-190100- Rhode Island Sound- 716 AM EST Sun Nov 18 2018 .TODAY...N winds 5 to 10 kt with gusts up to 20 kt, becoming E this afternoon. Seas around 2 ft. .TONIGHT...S winds 5 to 10 kt. Gusts up to 20 kt after midnight. Seas around 2 ft. .MON...SW winds 5 to 10 kt. Seas 2 to 4 ft. A chance of rain. .MON NIGHT...N winds 5 to 10 kt. Seas around 2 ft. A chance of rain. .TUE...NE winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 3 ft. Rain. .TUE NIGHT...NW winds 15 to 20 kt, diminishing to 10 to 15 kt after midnight. Gusts up to 25 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 20 to 25 kt with gusts up to 30 kt. Seas 2 to 4 ft. .THU...NW winds 15 to 20 kt with gusts up to 30 kt. Seas 2 to 4 ft. .THU NIGHT...NW winds 15 to 20 kt with gusts up to 30 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. $$ ANZ237-190100- Block Island Sound- 716 AM EST Sun Nov 18 2018 .TODAY...N winds 5 to 10 kt, becoming S this afternoon. Seas around 2 ft. .TONIGHT...S winds 5 to 10 kt. Seas around 2 ft. .MON...W winds 5 to 10 kt. Seas 2 to 3 ft. A chance of rain. .MON NIGHT...N winds 5 to 10 kt. Seas around 2 ft. A chance of rain. .TUE...NE winds 5 to 10 kt, becoming N 10 to 15 kt with gusts up to 20 kt in the afternoon. Seas 2 to 3 ft. Rain likely. .TUE NIGHT...NW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. .WED...W winds 10 to 15 kt with gusts up to 25 kt. Seas around 2 ft. .WED NIGHT...NW winds 15 to 20 kt with gusts up to 30 kt. Seas 2 to 4 ft. .THU...NW winds 15 to 20 kt with gusts up to 30 kt. Seas 2 to 3 ft. .THU NIGHT...N winds 15 to 20 kt with gusts up to 30 kt. Seas 2 to 3 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ230-190100- Boston Harbor- 716 AM EST Sun Nov 18 2018 .TODAY...NW winds 5 to 10 kt, becoming SW this afternoon. Waves 1 foot or less. .TONIGHT...S winds around 5 kt. Waves 1 foot or less. Rain likely with a chance of snow. .MON...SW winds around 5 kt, becoming NW in the afternoon. Waves 1 foot or less. A chance of rain. .MON NIGHT...NW winds around 5 kt. Waves 1 foot or less. .TUE...N winds 5 to 10 kt. Waves 1 foot or less. Rain and snow likely. Vsby 1 to 3 NM. .TUE NIGHT...NW winds around 10 kt. Waves around 2 ft. A chance of snow. .WED...W winds around 10 kt. Waves around 2 ft. .WED NIGHT...W winds 10 to 15 kt with gusts up to 25 kt. Waves around 2 ft. .THU...NW winds around 15 kt with gusts up to 25 kt. Waves around 2 ft. .THU NIGHT...NW winds 10 to 15 kt with gusts up to 25 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. $$ ANZ236-190100- Narragansett Bay- 716 AM EST Sun Nov 18 2018 .TODAY...N winds 5 to 10 kt, becoming SE this afternoon. Waves 1 foot or less. .TONIGHT...S winds 5 to 10 kt. Waves around 2 ft. A chance of rain. .MON...SW winds 5 to 10 kt, becoming W in the afternoon. Waves 2 to 3 ft. A chance of rain. .MON NIGHT...N winds around 5 kt. Waves around 2 ft. A chance of rain. .TUE...N winds 5 to 10 kt. Waves around 2 ft. Rain. Vsby 1 to 3 NM. .TUE NIGHT...NW winds 5 to 10 kt. Waves around 2 ft. .WED...W winds 10 to 15 kt with gusts up to 20 kt. Waves around 2 ft. .WED NIGHT...NW winds 10 to 15 kt with gusts up to 25 kt. Waves around 2 ft. .THU...NW winds 10 to 15 kt with gusts up to 25 kt. Waves around 2 ft. .THU NIGHT...NW winds 10 to 15 kt with gusts up to 25 kt. Waves around 2 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ 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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