Coastal Waters Forecast
Issued by NWS Boston, MA

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000 FZUS51 KBOX 120446 CWFBOX Coastal Waters Forecast National Weather Service Taunton MA 1146 PM EST Mon Dec 11 2017 Coastal waters from the Merrimack River MA to Watch Hill RI out to 25 NM ANZ200-120930- 1146 PM EST Mon Dec 11 2017 .Synopsis for Massachusetts and Rhode Island coastal waters... High pressure will build across the waters overnight. Meanwhile, low pressure will approach from the Great Lakes and move across New England Tuesday. The low will head toward southern Quebec Tuesday night and in its wake westerly gales could blow across the waters through Wednesday night. Low pressure moving off the Delmarva peninsula will scoot south of the waters on Thursday. Another low will approach the waters Friday and Friday night, then head toward Nova Scotia on Saturday. 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. $$ ANZ250-120930- Coastal waters east of Ipswich Bay and the Stellwagen Bank National Marine Sanctuary- 1146 PM EST Mon Dec 11 2017 ...GALE WARNING IN EFFECT FROM 10 AM EST TUESDAY THROUGH TUESDAY EVENING... .OVERNIGHT...W winds around 5 kt, becoming SE. Seas 2 to 3 ft. .TUE...SE winds 15 to 20 kt with gusts up to 30 kt, increasing to 20 to 25 kt with gusts up to 40 kt in the afternoon. Seas 6 to 9 ft. Rain. Vsby 1 to 3 NM. .TUE NIGHT...SW winds 15 to 20 kt with gusts up to 30 kt. Seas 6 to 9 ft. A chance of showers. .WED...W winds 20 to 25 kt with gusts up to 30 kt, increasing to 25 to 30 kt with gusts up to 40 kt in the afternoon. Seas 4 to 7 ft. .WED NIGHT...W winds 25 to 30 kt with gusts up to 40 kt. Seas 5 to 8 ft. .THU...W winds 20 to 25 kt with gusts up to 35 kt, diminishing to 15 to 20 kt with gusts up to 25 kt in the afternoon. Seas 4 to 6 ft. .THU NIGHT...W winds 15 to 20 kt, becoming NW 10 to 15 kt after midnight. Gusts up to 25 kt. Seas 2 to 4 ft. .FRI...NW winds 5 to 10 kt. Seas 2 to 3 ft. A chance of snow. .FRI NIGHT...N winds 10 to 15 kt with gusts up to 25 kt. Seas 3 to 5 ft. A chance of snow. .SAT...NW winds 15 to 20 kt with gusts up to 25 kt. Seas 6 to 9 ft. .SAT NIGHT...W winds 15 to 20 kt with gusts up to 25 kt. Seas 4 to 6 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ251-120930- Massachusetts Bay and Ipswich Bay- 1146 PM EST Mon Dec 11 2017 ...GALE WARNING IN EFFECT FROM 10 AM EST TUESDAY THROUGH TUESDAY EVENING... .OVERNIGHT...NW winds around 5 kt, becoming SE. Seas around 2 ft. A slight chance of freezing rain. .TUE...SE winds 15 to 20 kt with gusts up to 35 kt. Seas 4 to 7 ft. Rain. Vsby 1 to 3 NM. .TUE NIGHT...SW winds 10 to 15 kt with gusts up to 25 kt. Seas 5 to 8 ft. A chance of rain and snow showers. .WED...W winds 20 to 25 kt with gusts up to 35 kt. Seas 4 to 6 ft. .WED NIGHT...W winds 20 to 25 kt with gusts up to 35 kt. Seas 3 to 4 ft. .THU...W winds 15 to 20 kt with gusts up to 30 kt. Seas 2 to 3 ft. .THU NIGHT...W winds 10 to 15 kt, diminishing to 5 to 10 kt after midnight. Gusts up to 25 kt. Seas around 2 ft. .FRI...NW winds 5 to 10 kt. Seas 1 foot or less. A chance of snow. .FRI NIGHT...N winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. A chance of snow. .SAT...NW winds 10 to 15 kt with gusts up to 25 kt. Seas 3 to 5 ft. .SAT NIGHT...W winds 10 to 15 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. $$ ANZ231-120930- Cape Cod Bay- 1146 PM EST Mon Dec 11 2017 ...SMALL CRAFT ADVISORY IN EFFECT FROM 9 AM EST TUESDAY THROUGH LATE TUESDAY NIGHT... .OVERNIGHT...W winds around 5 kt, becoming SE. Seas 1 foot or less. .TUE...SE winds 15 to 20 kt with gusts up to 35 kt. Seas 2 to 4 ft. Rain. .TUE NIGHT...SW winds 10 to 15 kt, becoming W 15 to 20 kt after midnight. Gusts up to 30 kt. Seas 2 to 4 ft. A chance of showers. .WED...W winds 15 to 20 kt, increasing to 20 to 25 kt in the afternoon. Gusts up to 35 kt. Seas 3 to 5 ft. .WED NIGHT...W winds 25 to 30 kt, diminishing to 20 to 25 kt after midnight. Gusts up to 40 kt. Seas 4 to 6 ft. .THU...W winds 15 to 20 kt, diminishing to 10 to 15 kt in the afternoon. Gusts up to 30 kt. Seas 2 to 4 ft. .THU NIGHT...W winds 10 to 15 kt, becoming NW 5 to 10 kt after midnight. Gusts up to 20 kt. Seas around 2 ft. .FRI...NW winds around 5 kt. Seas 1 foot or less. A chance of snow. .FRI NIGHT...N winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 4 ft. A chance of snow. .SAT...NW winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to 5 ft. .SAT NIGHT...W winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 4 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ254-120930- Coastal waters from Provincetown MA to Chatham MA to Nantucket MA out 20 nm- 1146 PM EST Mon Dec 11 2017 ...GALE WARNING IN EFFECT FROM 10 AM EST TUESDAY THROUGH TUESDAY EVENING... .OVERNIGHT...W winds around 5 kt, becoming S. Seas 2 to 4 ft. .TUE...SE winds 15 to 20 kt. Gusts up to 30 kt, increasing to 40 kt in the afternoon. Seas 5 to 8 ft. A chance of rain. .TUE NIGHT...SW winds 10 to 15 kt, becoming W 15 to 20 kt after midnight. Gusts up to 30 kt. Seas 5 to 8 ft. A chance of showers. .WED...W winds 20 to 25 kt, increasing to 25 to 30 kt in the afternoon. Gusts up to 40 kt. Seas 7 to 10 ft, except 10 to 14 ft S and E of Nantucket. .WED NIGHT...W winds 25 to 30 kt with gusts up to 40 kt. Seas 6 to 9 ft, except 10 to 15 ft S and E of Nantucket. .THU...W winds 20 to 25 kt, diminishing to 15 to 20 kt in the afternoon. Gusts up to 30 kt. Seas 5 to 8 ft. .THU NIGHT...NW winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 5 ft. .FRI...NW winds 5 to 10 kt. Seas 2 to 4 ft. A chance of snow. .FRI NIGHT...N winds 15 to 20 kt with gusts up to 25 kt. Seas 4 to 7 ft. A chance of snow. .SAT...NW winds 15 to 20 kt with gusts up to 30 kt. Seas 7 to 10 ft. .SAT NIGHT...W winds 15 to 20 kt with gusts up to 25 kt. Seas 6 to 9 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. $$ ANZ255-120930- Coastal Waters extending out to 25 nm South of Marthas Vineyard and Nantucket- 1146 PM EST Mon Dec 11 2017 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TUESDAY NIGHT... .OVERNIGHT...W winds around 5 kt, becoming S. Seas 2 to 4 ft. .TUE...S winds 15 to 20 kt with gusts up to 30 kt. Seas 4 to 7 ft. Rain likely. .TUE NIGHT...W winds 15 to 20 kt with gusts up to 30 kt. Seas 7 to 10 ft. A chance of showers. .WED...W winds 20 to 25 kt, increasing to 25 to 30 kt in the afternoon. Gusts up to 40 kt. Seas 8 to 13 ft. A chance of snow showers. .WED NIGHT...W winds 25 to 30 kt with gusts up to 40 kt. Seas 9 to 12 ft. .THU...W winds 20 to 25 kt, diminishing to 15 to 20 kt in the afternoon. Gusts up to 30 kt. Seas 6 to 9 ft. .THU NIGHT...NW winds 10 to 15 kt, diminishing to 5 to 10 kt after midnight. Gusts up to 20 kt. Seas 3 to 5 ft. .FRI...NW winds 5 to 10 kt. Seas 3 to 5 ft. A chance of rain. .FRI NIGHT...N winds 15 to 20 kt with gusts up to 25 kt. Seas 4 to 6 ft. A chance of snow and rain. .SAT...NW winds 15 to 20 kt with gusts up to 30 kt. Seas 5 to 8 ft. .SAT NIGHT...W winds 15 to 20 kt with gusts up to 25 kt. Seas 5 to 8 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ256-120930- Coastal Waters from Montauk NY to Marthas Vineyard extending out to 20 nm South of Block Island- 1146 PM EST Mon Dec 11 2017 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TUESDAY NIGHT... .OVERNIGHT...SW winds around 5 kt, becoming S 10 to 15 kt. Seas 3 to 4 ft. .TUE...S winds 15 to 20 kt with gusts up to 30 kt. Seas 4 to 7 ft. A chance of rain. .TUE NIGHT...W winds 15 to 20 kt, increasing to 20 to 25 kt after midnight. Gusts up to 30 kt. Seas 7 to 10 ft. A chance of rain and snow showers. .WED...W winds 25 to 35 kt with gusts up to 40 kt. Seas 8 to 13 ft. A chance of snow showers. .WED NIGHT...W winds 30 to 35 kt, diminishing to 25 to 30 kt after midnight. Seas 8 to 11 ft. .THU...W winds 20 to 25 kt, diminishing to 15 to 20 kt in the afternoon. Gusts up to 30 kt. Seas 5 to 8 ft. .THU NIGHT...NW winds 10 to 15 kt with gusts up to 20 kt, diminishing to 5 to 10 kt after midnight. Seas 3 to 5 ft. .FRI...N winds 5 to 10 kt with gusts up to 20 kt. Seas 2 to 4 ft. A chance of snow. .FRI NIGHT...N winds 15 to 20 kt with gusts up to 25 kt. Seas 4 to 6 ft. A chance of snow. .SAT...NW winds 15 to 20 kt with gusts up to 30 kt. Seas 4 to 7 ft. .SAT NIGHT...W winds 15 to 20 kt with gusts up to 25 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. $$ ANZ232-120930- Nantucket Sound- 1146 PM EST Mon Dec 11 2017 ...SMALL CRAFT ADVISORY IN EFFECT FROM 9 AM EST TUESDAY THROUGH LATE TUESDAY NIGHT... .OVERNIGHT...W winds around 5 kt, becoming SE. Seas 2 to 3 ft. .TUE...SE winds 15 to 20 kt with gusts up to 30 kt. Seas 2 to 4 ft. Rain. .TUE NIGHT...SW winds 10 to 15 kt, becoming W 15 to 20 kt after midnight. Gusts up to 30 kt. Seas 3 to 5 ft. A chance of showers. .WED...W winds 20 to 25 kt, increasing to 25 to 30 kt in the afternoon. Seas 4 to 7 ft. A chance of snow showers. .WED NIGHT...W winds 25 to 30 kt with gusts up to 40 kt. Seas 4 to 7 ft. .THU...W winds 15 to 20 kt with gusts up to 30 kt. Seas 2 to 4 ft. .THU NIGHT...NW winds 10 to 15 kt, diminishing to 5 to 10 kt after midnight. Gusts up to 20 kt. Seas 2 to 3 ft. .FRI...NW winds 5 to 10 kt. Seas around 2 ft. A chance of snow. .FRI NIGHT...N winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 4 ft. A chance of snow. .SAT...NW winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to 5 ft. .SAT NIGHT...W winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 4 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ233-120930- Vineyard Sound- 1146 PM EST Mon Dec 11 2017 ...SMALL CRAFT ADVISORY IN EFFECT FROM 9 AM EST TUESDAY THROUGH LATE TUESDAY NIGHT... .OVERNIGHT...N winds around 5 kt, becoming SE. Seas 2 to 3 ft. .TUE...S winds 15 to 20 kt with gusts up to 30 kt. Seas 2 to 4 ft. Rain. .TUE NIGHT...SW winds 10 to 15 kt, becoming W 15 to 20 kt after midnight. Gusts up to 30 kt. Seas 3 to 5 ft. A chance of rain and snow showers. .WED...W winds 20 to 25 kt, increasing to 25 to 30 kt in the afternoon. Seas 4 to 7 ft. A chance of snow showers. .WED NIGHT...W winds 25 to 30 kt, diminishing to 20 to 25 kt after midnight. Gusts up to 40 kt. Seas 4 to 6 ft. .THU...W winds 15 to 20 kt, diminishing to 10 to 15 kt in the afternoon. Gusts up to 30 kt. Seas 3 to 5 ft. .THU NIGHT...NW winds 10 to 15 kt with gusts up to 20 kt, diminishing to 5 to 10 kt after midnight. Seas around 2 ft. .FRI...NW winds 5 to 10 kt. Seas around 2 ft. A chance of snow. .FRI NIGHT...N winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 3 ft. A chance of snow. .SAT...NW winds 15 to 20 kt with gusts up to 30 kt. Seas 2 to 3 ft. .SAT NIGHT...W winds 10 to 15 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. $$ ANZ234-120930- Buzzards Bay- 1146 PM EST Mon Dec 11 2017 ...SMALL CRAFT ADVISORY IN EFFECT FROM 9 AM EST TUESDAY THROUGH LATE TUESDAY NIGHT... .OVERNIGHT...N winds around 5 kt, becoming SE. Seas around 2 ft. .TUE...S winds 15 to 20 kt with gusts up to 30 kt. Seas 2 to 4 ft. Rain. .TUE NIGHT...SW winds 10 to 15 kt, becoming W 15 to 20 kt after midnight. Gusts up to 25 kt. Seas 2 to 4 ft. A chance of rain and snow showers. .WED...W winds 15 to 20 kt, increasing to 20 to 25 kt in the afternoon. Gusts up to 35 kt. Seas 3 to 5 ft. .WED NIGHT...W winds 20 to 25 kt with gusts up to 35 kt. Seas 3 to 4 ft. .THU...W winds 15 to 20 kt, diminishing to 10 to 15 kt in the afternoon. Gusts up to 30 kt. Seas 2 to 4 ft. .THU NIGHT...NW winds 5 to 10 kt. Gusts up to 20 kt in the evening. Seas around 2 ft. .FRI...NW winds 5 to 10 kt. Seas around 2 ft. A chance of snow. .FRI NIGHT...N winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft. A chance of snow. .SAT...NW winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 3 ft. .SAT NIGHT...W winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ235-120930- Rhode Island Sound- 1146 PM EST Mon Dec 11 2017 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TUESDAY NIGHT... .OVERNIGHT...N winds around 5 kt, becoming SE 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. .TUE...S winds 15 to 20 kt with gusts up to 30 kt. Seas 4 to 7 ft. Rain. .TUE NIGHT...W winds 15 to 20 kt with gusts up to 30 kt. Seas 6 to 9 ft. A chance of rain and snow showers. .WED...W winds 20 to 25 kt, increasing to 25 to 30 kt in the afternoon. Gusts up to 40 kt. Seas 5 to 8 ft. A chance of snow showers. .WED NIGHT...W winds 25 to 30 kt with gusts up to 40 kt. Seas 5 to 8 ft. .THU...W winds 20 to 25 kt, diminishing to 15 to 20 kt in the afternoon. Gusts up to 30 kt. Seas 3 to 5 ft. .THU NIGHT...NW winds 10 to 15 kt, diminishing to 5 to 10 kt after midnight. Gusts up to 20 kt. Seas 2 to 4 ft. .FRI...N winds 5 to 10 kt with gusts up to 20 kt. Seas 2 to 3 ft. A chance of snow. .FRI NIGHT...N winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 4 ft. A chance of snow. .SAT...NW winds 15 to 20 kt with gusts up to 30 kt. Seas 2 to 4 ft. .SAT 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. $$ ANZ237-120930- Block Island Sound- 1146 PM EST Mon Dec 11 2017 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TUESDAY NIGHT... .OVERNIGHT...SE winds around 5 kt, becoming S. Seas 2 to 4 ft. .TUE...S winds 15 to 20 kt with gusts up to 30 kt. Seas 4 to 7 ft. Rain likely. .TUE NIGHT...W winds 10 to 15 kt, increasing to 15 to 20 kt after midnight. Gusts up to 30 kt. Seas 5 to 8 ft. A chance of rain and snow showers. .WED...W winds 20 to 25 kt, increasing to 25 to 30 kt in the afternoon. Gusts up to 40 kt. Seas 4 to 7 ft. A chance of snow showers. .WED NIGHT...W winds 25 to 30 kt, diminishing to 20 to 25 kt after midnight. Gusts up to 40 kt. Seas 4 to 7 ft. .THU...W winds 15 to 20 kt with gusts up to 30 kt, diminishing to 10 to 15 kt with gusts up to 20 kt in the afternoon. Seas 2 to 4 ft. .THU NIGHT...NW winds 10 to 15 kt with gusts up to 20 kt, diminishing to 5 to 10 kt after midnight. Seas 2 to 3 ft. .FRI...N winds 5 to 10 kt. Seas 2 to 3 ft. A chance of snow. .FRI NIGHT...N winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 4 ft. A chance of snow. .SAT...NW winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 4 ft. .SAT NIGHT...W winds 10 to 15 kt with gusts up to 25 kt. Seas 3 to 5 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ230-120930- Boston Harbor- 1146 PM EST Mon Dec 11 2017 ...SMALL CRAFT ADVISORY IN EFFECT FROM TUESDAY AFTERNOON THROUGH TUESDAY EVENING... .OVERNIGHT...NW winds around 5 kt, becoming E. Waves 1 foot or less. .TUE...SE winds 10 to 15 kt with gusts up to 30 kt. Waves 2 to 3 ft. Rain. .TUE NIGHT...SW winds 5 to 10 kt with gusts up to 20 kt. Waves around 2 ft, except 4 to 6 ft at the outer harbor entrance. A chance of rain and snow showers. .WED...W winds 15 to 20 kt with gusts up to 35 kt. Waves around 2 ft. .WED NIGHT...W winds 15 to 20 kt with gusts up to 35 kt. Waves around 2 ft. .THU...W winds 10 to 15 kt, diminishing to 5 to 10 kt in the afternoon. Gusts up to 25 kt. Waves around 2 ft. .THU NIGHT...W winds 5 to 10 kt. Waves 1 foot or less. .FRI...NW winds around 5 kt. Waves 1 foot or less. A chance of snow. .FRI NIGHT...N winds 5 to 10 kt. Waves around 2 ft. A chance of snow. .SAT...NW winds 5 to 10 kt with gusts up to 20 kt. Waves around 2 ft. .SAT NIGHT...W winds 5 to 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. $$ ANZ236-120930- Narragansett Bay- 1146 PM EST Mon Dec 11 2017 ...SMALL CRAFT ADVISORY IN EFFECT FROM TUESDAY AFTERNOON THROUGH TUESDAY EVENING... .OVERNIGHT...NE winds around 5 kt, becoming E. Waves 2 to 3 ft. .TUE...S winds 10 to 15 kt with gusts up to 30 kt. Waves 3 to 5 ft. Rain. .TUE NIGHT...W winds 10 to 15 kt with gusts up to 25 kt. Waves 3 to 5 ft. A chance of rain and snow showers. .WED...W winds 15 to 20 kt with gusts up to 35 kt. Waves 3 to 5 ft. .WED NIGHT...W winds 15 to 20 kt with gusts up to 35 kt. Waves 2 to 3 ft. .THU...W winds 10 to 15 kt with gusts up to 25 kt. Waves 2 to 3 ft. .THU NIGHT...NW winds 5 to 10 kt. Waves around 2 ft. .FRI...N winds around 5 kt. Waves around 2 ft. A chance of snow. .FRI NIGHT...N winds 5 to 10 kt with gusts up to 20 kt. Waves around 2 ft. A chance of snow. .SAT...NW winds 10 to 15 kt with gusts up to 25 kt. Waves around 2 ft. .SAT NIGHT...W winds 5 to 10 kt with gusts up to 20 kt. Waves 2 to 3 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ 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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