Coastal Waters Forecast
Issued by NWS Boston, MA

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936 FZUS51 KBOX 102033 CWFBOX Coastal Waters Forecast National Weather Service Taunton MA 333 PM EST Sun Dec 10 2017 Coastal waters from the Merrimack River MA to Watch Hill RI out to 25 NM ANZ200-110930- 333 PM EST Sun Dec 10 2017 .Synopsis for Massachusetts and Rhode Island coastal waters... High pressure will briefly build across the waters for Monday. Low pressure will approach from the west Monday night, moving offshore and becoming a potential gale Tuesday into Wednesday. Another low pressure system will approach the waters on Friday. 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. $$ ANZ250-110930- Coastal waters east of Ipswich Bay and the Stellwagen Bank National Marine Sanctuary- 333 PM EST Sun Dec 10 2017 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH MONDAY AFTERNOON... .TONIGHT...W winds 15 to 20 kt, becoming SW 10 to 15 kt after midnight. Gusts up to 25 kt. Seas 4 to 7 ft. .MON...W winds 10 to 15 kt with gusts up to 25 kt. Seas 3 to 5 ft. .MON NIGHT...NW winds 10 to 15 kt, becoming SE 5 to 10 kt after midnight. Seas 2 to 4 ft. A chance of rain. .TUE...SE winds 15 to 20 kt, increasing to 20 to 25 kt in the afternoon. Gusts up to 35 kt. Seas 4 to 7 ft. Rain. .TUE NIGHT...SW winds 15 to 20 kt, becoming W 10 to 15 kt after midnight. Gusts up to 30 kt. Seas 5 to 8 ft. .WED...W winds 20 to 25 kt, increasing to 25 to 30 kt in the afternoon. Seas 6 to 9 ft. .WED NIGHT...W winds 25 to 30 kt with gusts up to 40 kt. Seas 7 to 10 ft. .THU...W winds 20 to 25 kt with gusts up to 35 kt. Seas 5 to 8 ft. .THU NIGHT...W winds 15 to 20 kt. Seas 2 to 4 ft. .FRI...NW winds 5 to 10 kt with gusts up to 20 kt. Seas 2 to 3 ft. A chance of snow. Vsby 1 to 3 NM. .FRI NIGHT...NW winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 4 ft. A chance of snow. Vsby 1 to 3 NM. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ251-110930- Massachusetts Bay and Ipswich Bay- 333 PM EST Sun Dec 10 2017 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH MONDAY MORNING... .TONIGHT...SW winds 10 to 15 kt with gusts up to 25 kt. Seas 3 to 5 ft. .MON...W winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. .MON NIGHT...NW winds 5 to 10 kt, becoming E after midnight. Seas 2 to 3 ft. A chance of snow. .TUE...SE winds 15 to 20 kt with gusts up to 30 kt. Seas 3 to 5 ft. Rain. .TUE NIGHT...W winds 10 to 15 kt with gusts up to 25 kt. Seas 3 to 5 ft. .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 3 to 5 ft. .THU...W winds 15 to 20 kt with gusts up to 35 kt. Seas 2 to 4 ft. .THU NIGHT...W winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft. .FRI...NW winds 5 to 10 kt with gusts up to 20 kt. Seas around 2 ft. A chance of snow. Vsby 1 to 3 NM. .FRI NIGHT...NW winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft. A chance of snow. Vsby 1 to 3 NM. 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. $$ ANZ231-110930- Cape Cod Bay- 333 PM EST Sun Dec 10 2017 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH MONDAY AFTERNOON... .TONIGHT...W winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 4 ft. .MON...W winds 5 to 10 kt with gusts up to 25 kt. Seas around 2 ft. .MON NIGHT...W winds 5 to 10 kt, becoming SE after midnight. Seas around 2 ft. .TUE...SE winds 10 to 15 kt with gusts up to 30 kt. Seas 2 to 4 ft. Rain. .TUE NIGHT...W winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 4 ft. .WED...W winds 15 to 20 kt, increasing to 25 to 30 kt in the afternoon. Seas 3 to 5 ft. .WED NIGHT...W winds 25 to 30 kt with gusts up to 40 kt. Seas 4 to 7 ft. .THU...W winds 20 to 25 kt with gusts up to 30 kt. Seas 3 to 5 ft. .THU NIGHT...W winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft. A chance of snow. Vsby 1 to 3 NM. .FRI...W winds 5 to 10 kt with gusts up to 20 kt. Seas 1 foot or less. A chance of snow. Vsby 1 to 3 NM. .FRI NIGHT...NW winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 4 ft. A chance of snow. Vsby 1 to 3 NM. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ254-110930- Coastal waters from Provincetown MA to Chatham MA to Nantucket MA out 20 nm- 333 PM EST Sun Dec 10 2017 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH MONDAY EVENING... .TONIGHT...W winds 10 to 15 kt with gusts up to 25 kt. Seas 4 to 7 ft. A chance of showers after midnight. .MON...W winds 10 to 15 kt with gusts up to 25 kt. Seas 4 to 6 ft. A chance of showers. .MON NIGHT...W winds 5 to 10 kt, becoming SE after midnight. Seas 3 to 5 ft. .TUE...SE winds 15 to 20 kt with gusts up to 35 kt. Seas 4 to 6 ft. Rain likely. .TUE NIGHT...W winds 10 to 15 kt with gusts up to 30 kt. Seas 4 to 7 ft. .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 6 to 9 ft, except 8 to 13 ft S and E of Nantucket. .WED NIGHT...W winds 25 to 30 kt with gusts up to 40 kt. Seas 8 to 11 ft, except 10 to 15 ft S and E of Nantucket. .THU...W winds 20 to 25 kt with gusts up to 35 kt. Seas 5 to 8 ft. .THU NIGHT...W winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. A chance of snow. Vsby 1 to 3 NM. .FRI...SW winds 5 to 10 kt with gusts up to 20 kt. Seas 3 to 5 ft. A chance of rain and snow. Vsby 1 to 3 NM. .FRI NIGHT...NW winds 10 to 15 kt with gusts up to 25 kt. Seas 4 to 6 ft. A chance of rain. 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. $$ ANZ255-110930- Coastal Waters extending out to 25 nm South of Marthas Vineyard and Nantucket- 333 PM EST Sun Dec 10 2017 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH MONDAY EVENING... .TONIGHT...W winds 10 to 15 kt with gusts up to 25 kt. Seas 6 to 9 ft. A chance of showers after midnight. .MON...W winds 10 to 15 kt with gusts up to 25 kt. Seas 5 to 8 ft. A chance of showers. .MON NIGHT...W winds 5 to 10 kt, becoming S after midnight. Seas 3 to 5 ft. .TUE...SE winds 10 to 15 kt, becoming S 15 to 20 kt in the afternoon. Gusts up to 30 kt. Seas 3 to 5 ft. Rain likely. .TUE NIGHT...W winds 15 to 20 kt with gusts up to 30 kt. Seas 6 to 9 ft. .WED...W winds 20 to 25 kt with gusts up to 30 kt, increasing to 25 to 30 kt with gusts up to 40 kt in the afternoon. Seas 8 to 13 ft. .WED NIGHT...W winds 25 to 30 kt with gusts up to 40 kt. Seas 9 to 14 ft. .THU...W winds 20 to 25 kt with gusts up to 30 kt. Seas 7 to 10 ft. .THU NIGHT...W winds 10 to 15 kt with gusts up to 20 kt. Seas 4 to 7 ft. A chance of snow and rain. Vsby 1 to 3 NM. .FRI...W winds 10 to 15 kt with gusts up to 20 kt. Seas 4 to 7 ft. A chance of rain. .FRI NIGHT...NW winds 10 to 15 kt with gusts up to 25 kt. Seas 4 to 6 ft. A chance of rain. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ256-110930- Coastal Waters from Montauk NY to Marthas Vineyard extending out to 20 nm South of Block Island- 333 PM EST Sun Dec 10 2017 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH MONDAY EVENING... .TONIGHT...W winds 10 to 15 kt with gusts up to 25 kt. Seas 6 to 9 ft. A slight chance of showers after midnight. .MON...W winds 10 to 15 kt with gusts up to 25 kt. Seas 5 to 8 ft. A chance of showers. .MON NIGHT...W winds 5 to 10 kt, becoming S 10 to 15 kt with gusts up to 20 kt after midnight. Seas 3 to 5 ft. A chance of rain. .TUE...SE winds 10 to 15 kt, becoming S 20 to 25 kt in the afternoon. 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 9 ft. .WED...W winds 25 to 35 kt. Seas 9 to 12 ft. .WED NIGHT...W winds 25 to 35 kt with gusts up to 40 kt. Seas 9 to 12 ft. .THU...W winds 20 to 25 kt with gusts up to 30 kt. Seas 5 to 8 ft. .THU NIGHT...W winds 10 to 15 kt with gusts up to 20 kt. Seas 4 to 7 ft. A chance of snow. Vsby 1 to 3 NM. .FRI...W winds 5 to 10 kt with gusts up to 20 kt. Seas 4 to 7 ft. A chance of rain and snow. Vsby 1 to 3 NM. .FRI NIGHT...NW winds 10 to 15 kt with gusts up to 25 kt. Seas 4 to 6 ft. A chance of rain. 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. $$ ANZ232-110930- Nantucket Sound- 333 PM EST Sun Dec 10 2017 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH MONDAY AFTERNOON... .TONIGHT...W winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 4 ft. A slight chance of showers after midnight. .MON...W winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 4 ft. A chance of showers. .MON NIGHT...NW winds 5 to 10 kt, becoming SE after midnight. Seas 2 to 3 ft. .TUE...S winds 10 to 15 kt with gusts up to 30 kt. Seas 2 to 3 ft. Rain likely. .TUE NIGHT...W winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 4 ft. .WED...W winds 15 to 20 kt with gusts up to 30 kt, increasing to 25 to 30 kt with gusts up to 40 kt in the afternoon. Seas 3 to 5 ft. .WED NIGHT...W winds 25 to 30 kt with gusts up to 40 kt. Seas 4 to 6 ft. .THU...W winds 20 to 25 kt with gusts up to 30 kt. Seas 2 to 4 ft. .THU NIGHT...NW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. A chance of snow. Vsby 1 to 3 NM. .FRI...W winds 5 to 10 kt with gusts up to 20 kt. Seas 2 to 3 ft. A chance of rain and snow. Vsby 1 to 3 NM. .FRI NIGHT...NW winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 3 ft. A chance of rain. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ233-110930- Vineyard Sound- 333 PM EST Sun Dec 10 2017 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH MONDAY AFTERNOON... .TONIGHT...W winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 4 ft. A slight chance of snow showers after midnight. .MON...W winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 4 ft. A chance of snow showers. .MON NIGHT...NW winds 5 to 10 kt, becoming SE after midnight. Seas 2 to 3 ft. A chance of rain. .TUE...SE winds 10 to 15 kt, becoming S 15 to 20 kt in the afternoon. Gusts up to 30 kt. Seas 2 to 4 ft. Rain likely. .TUE NIGHT...W winds 15 to 20 kt, diminishing to 10 to 15 kt after midnight. Gusts up to 25 kt. Seas 3 to 5 ft. .WED...W winds 15 to 20 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 6 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 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 with gusts up to 20 kt. Seas 2 to 4 ft. A chance of snow. Vsby 1 to 3 NM. .FRI...NW winds 5 to 10 kt with gusts up to 20 kt. Seas 2 to 4 ft. A chance of snow and rain. Vsby 1 to 3 NM. .FRI NIGHT...NW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. A chance of snow. Vsby 1 to 3 NM. 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. $$ ANZ234-110930- Buzzards Bay- 333 PM EST Sun Dec 10 2017 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH MONDAY AFTERNOON... .TONIGHT...W winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 3 ft. .MON...W winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 3 ft. .MON NIGHT...NW winds 5 to 10 kt, becoming SE after midnight. Seas 2 to 3 ft. .TUE...SE winds 10 to 15 kt, becoming S 15 to 20 kt in the afternoon. Gusts up to 30 kt. Seas 2 to 4 ft. Rain likely. .TUE NIGHT...W winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 4 ft. .WED...W winds 15 to 20 kt, increasing to 20 to 25 kt in the afternoon. Gusts up to 35 kt. Seas 2 to 4 ft. .WED NIGHT...W winds 20 to 25 kt with gusts up to 40 kt. Seas 3 to 5 ft. .THU...W winds 15 to 20 kt with gusts up to 30 kt. Seas 2 to 4 ft. .THU NIGHT...NW winds 5 to 10 kt. Seas 2 to 3 ft. A chance of snow. Vsby 1 to 3 NM. .FRI...NW winds 5 to 10 kt with gusts up to 20 kt. Seas 2 to 3 ft. A chance of snow. Vsby 1 to 3 NM. .FRI NIGHT...NW winds 5 to 10 kt with gusts up to 20 kt. Seas 2 to 3 ft. A chance of snow. Vsby 1 to 3 NM. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ235-110930- Rhode Island Sound- 333 PM EST Sun Dec 10 2017 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH MONDAY AFTERNOON... .TONIGHT...W winds 10 to 15 kt, increasing to 15 to 20 kt after midnight. Gusts up to 25 kt. Seas 4 to 7 ft. A slight chance of showers after midnight. .MON...W winds 10 to 15 kt with gusts up to 25 kt. Seas 4 to 6 ft. A chance of showers. .MON NIGHT...NW winds 5 to 10 kt, becoming SE with gusts up to 20 kt after midnight. Seas 2 to 4 ft. A chance of rain. .TUE...S winds 15 to 20 kt with gusts up to 30 kt. Seas 4 to 6 ft. Rain likely. .TUE NIGHT...W winds 15 to 20 kt with gusts up to 25 kt. Seas 5 to 8 ft. .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 6 to 9 ft. .WED NIGHT...W winds 25 to 30 kt with gusts up to 40 kt. Seas 6 to 9 ft. .THU...W winds 20 to 25 kt with gusts up to 30 kt. Seas 4 to 7 ft. .THU NIGHT...NW winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 5 ft. A chance of snow. Vsby 1 to 3 NM. .FRI...W winds 5 to 10 kt with gusts up to 20 kt. Seas 4 to 6 ft. A chance of snow and rain. Vsby 1 to 3 NM. .FRI NIGHT...NW winds 10 to 15 kt with gusts up to 25 kt. Seas 3 to 5 ft. A chance of snow. Vsby 1 to 3 NM. 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. $$ ANZ237-110930- Block Island Sound- 333 PM EST Sun Dec 10 2017 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH MONDAY AFTERNOON... .TONIGHT...W winds 10 to 15 kt with gusts up to 25 kt. Seas 4 to 6 ft. A slight chance of showers after midnight. .MON...W winds 10 to 15 kt with gusts up to 25 kt. Seas 3 to 5 ft. A chance of showers. .MON NIGHT...NW winds 5 to 10 kt, becoming SE with gusts up to 20 kt after midnight. Seas 2 to 4 ft. A chance of rain. .TUE...SE winds 10 to 15 kt, becoming S 15 to 20 kt in the afternoon. Gusts up to 30 kt. Seas 4 to 6 ft. Rain likely. .TUE NIGHT...W winds 10 to 15 kt, increasing to 15 to 20 kt after midnight. Gusts up to 25 kt. Seas 4 to 7 ft. .WED...W winds 20 to 25 kt with gusts up to 30 kt, increasing to 25 to 30 kt with gusts up to 40 kt in the afternoon. Seas 4 to 7 ft. .WED NIGHT...W winds 25 to 30 kt, diminishing to 20 to 25 kt after midnight. Gusts up to 40 kt. Seas 5 to 8 ft. .THU...W winds 15 to 20 kt with gusts up to 30 kt. Seas 3 to 5 ft. .THU NIGHT...NW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. A chance of snow. Vsby 1 to 3 NM. .FRI...NW winds 5 to 10 kt with gusts up to 20 kt. Seas 3 to 5 ft. A chance of snow and rain. Vsby 1 to 3 NM. .FRI NIGHT...NW winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 4 ft. A chance of snow. Vsby 1 to 3 NM. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ230-110930- Boston Harbor- 333 PM EST Sun Dec 10 2017 .TONIGHT...SW winds 10 to 15 kt with gusts up to 25 kt. Waves around 2 ft. .MON...W winds 5 to 10 kt with gusts up to 20 kt. Waves around 2 ft. .MON NIGHT...NW winds 5 to 10 kt, becoming E after midnight. Waves 1 foot or less. A chance of snow. .TUE...SE winds 10 to 15 kt with gusts up to 25 kt. Waves 2 to 4 ft. Rain with snow likely. Vsby 1 to 3 NM. .TUE NIGHT...W winds 5 to 10 kt with gusts up to 20 kt. Waves around 2 ft. .WED...W winds 10 to 15 kt, increasing to 15 to 20 kt in the afternoon. Gusts up to 30 kt. Waves around 2 ft. .WED NIGHT...W winds 15 to 20 kt with gusts up to 30 kt. Waves around 2 ft. .THU...W winds 10 to 15 kt with 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. Vsby 1 to 3 NM. .FRI NIGHT...NW winds 5 to 10 kt. Waves 1 foot or less. A chance of snow. Vsby 1 to 3 NM. 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. $$ ANZ236-110930- Narragansett Bay- 333 PM EST Sun Dec 10 2017 .TONIGHT...W winds 5 to 10 kt with gusts up to 20 kt. Waves 2 to 4 ft. .MON...W winds 5 to 10 kt. Gusts up to 20 kt in the morning. Waves 2 to 4 ft. .MON NIGHT...NW winds around 5 kt, becoming E after midnight. Waves around 2 ft. .TUE...SE winds 5 to 10 kt, becoming S 10 to 15 kt in the afternoon. Gusts up to 25 kt. Waves 2 to 4 ft. Rain. .TUE NIGHT...W winds 10 to 15 kt with gusts up to 25 kt. Waves 2 to 4 ft. .WED...W winds 15 to 20 kt, increasing to 20 to 25 kt in the afternoon. Gusts up to 35 kt. Waves 2 to 3 ft. .WED NIGHT...W winds 20 to 25 kt, diminishing to 15 to 20 kt after midnight. Gusts up to 35 kt. Waves 2 to 3 ft, except 4 to 6 ft at the bay entrance. .THU...W winds 10 to 15 kt with gusts up to 30 kt. Waves 2 to 3 ft. .THU NIGHT...NW winds 5 to 10 kt. Waves 2 to 3 ft. .FRI...NW winds 5 to 10 kt. Waves 2 to 3 ft. A chance of snow. Vsby 1 to 3 NM. .FRI NIGHT...NW winds 5 to 10 kt with gusts up to 20 kt. Waves 2 to 3 ft. A chance of snow. Vsby 1 to 3 NM. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ 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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