Coastal Waters Forecast
Issued by NWS Boston, MA

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271 FZUS51 KBOX 180017 CWFBOX Coastal Waters Forecast National Weather Service Taunton MA 716 PM EST Wed Jan 17 2018 Coastal waters from the Merrimack River MA to Watch Hill RI out to 25 NM ANZ200-181300- 716 PM EST Wed Jan 17 2018 .Synopsis for Massachusetts and Rhode Island coastal waters... Low pres will track up into the Gulf of Maine tonight. Large high pres will build S of the waters Thu through this weekend. A cold front may approach from the N Sunday night, but should remain N of the waters. 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. $$ ANZ250-181300- Coastal waters east of Ipswich Bay and the Stellwagen Bank National Marine Sanctuary- 716 PM EST Wed Jan 17 2018 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH THURSDAY EVENING... .TONIGHT...NW winds 5 to 10 kt, increasing to 10 to 15 kt with gusts up to 20 kt after midnight. Seas 4 to 6 ft. Patchy fog this evening. Rain with a chance of snow this evening with vsby 1 to 3 NM. .THU...NW winds 10 to 15 kt. Gusts up to 20 kt in the afternoon. Seas 4 to 6 ft. .THU NIGHT...NW winds 15 to 20 kt, diminishing to around 10 kt after midnight. Seas 3 to 5 ft. .FRI...W winds 5 to 10 kt. Seas 2 to 4 ft. .FRI NIGHT...W winds 10 to 15 kt, becoming SW 15 to 20 kt with gusts up to 30 kt after midnight. Seas 3 to 5 ft. .SAT...SW winds 15 to 20 kt with gusts up to 35 kt. Seas 4 to 6 ft. .SAT NIGHT...W winds 10 to 15 kt. Gusts up to 30 kt, decreasing to 20 kt after midnight. Seas 2 to 4 ft. .SUN...W winds 10 to 15 kt. Seas 2 to 3 ft. .SUN NIGHT...N winds 5 to 10 kt. Seas 2 to 3 ft. .MON...E winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. .MON NIGHT...SE winds 15 to 20 kt with gusts up to 25 kt. Seas 4 to 7 ft. Rain likely. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ251-181300- Massachusetts Bay and Ipswich Bay- 716 PM EST Wed Jan 17 2018 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 7 AM EST THURSDAY... .TONIGHT...NW winds 5 to 10 kt, increasing to 10 to 15 kt with gusts up to 20 kt after midnight. Seas 3 to 5 ft. Patchy fog this evening. A chance of snow this evening with vsby 1 to 3 NM. .THU...NW winds 10 to 15 kt. Gusts up to 20 kt in the afternoon. Seas 3 to 5 ft. .THU NIGHT...NW winds 15 to 20 kt, diminishing to 5 to 10 kt after midnight. Seas 2 to 4 ft. .FRI...W winds 5 to 10 kt. Seas 2 to 3 ft. .FRI NIGHT...SW winds 5 to 10 kt, increasing to 10 to 15 kt with gusts up to 25 kt after midnight. Seas 2 to 4 ft. .SAT...SW winds 10 to 15 kt with gusts up to 30 kt. Seas 2 to 4 ft. .SAT NIGHT...W winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft. .SUN...W winds 5 to 10 kt. Seas 1 foot or less. .SUN NIGHT...NW winds 5 to 10 kt. Seas 1 foot or less. .MON...E winds 5 to 10 kt with gusts up to 20 kt. Seas around 2 ft. A chance of rain. .MON NIGHT...SE winds 10 to 15 kt with gusts up to 25 kt. Seas 3 to 5 ft. Rain likely. 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. $$ ANZ231-181300- Cape Cod Bay- 716 PM EST Wed Jan 17 2018 .TONIGHT...NW winds 5 to 10 kt, increasing to 10 to 15 kt with gusts up to 20 kt after midnight. Seas 2 to 3 ft. Patchy fog. A chance of snow this evening with vsby 1 to 3 NM. .THU...NW winds 10 to 15 kt. Gusts up to 20 kt in the afternoon. Seas 2 to 3 ft. .THU NIGHT...NW winds 15 to 20 kt, diminishing to 5 to 10 kt after midnight. Seas 2 to 3 ft. .FRI...W winds 5 to 10 kt. Seas around 2 ft. .FRI NIGHT...W winds 5 to 10 kt, becoming SW 10 to 15 kt with gusts up to 30 kt after midnight. Seas 2 to 4 ft. .SAT...SW winds 15 to 20 kt with gusts up to 35 kt. Seas 3 to 5 ft. .SAT NIGHT...W winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 3 ft. .SUN...W winds 5 to 10 kt. Seas 1 foot or less. .SUN NIGHT...NW winds 5 to 10 kt. Seas 1 foot or less. .MON...E winds 5 to 10 kt. Seas around 2 ft. .MON NIGHT...SE winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 4 ft. Rain likely. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ254-181300- Coastal waters from Provincetown MA to Chatham MA to Nantucket MA out 20 nm- 716 PM EST Wed Jan 17 2018 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH THURSDAY EVENING... .TONIGHT...NW winds 5 to 10 kt. Gusts up to 20 kt after midnight. Seas 4 to 6 ft. Patchy fog. Vsby 1 NM or less. .THU...NW winds 10 to 15 kt, increasing to 15 to 20 kt in the afternoon. Seas 4 to 6 ft. .THU NIGHT...NW winds 15 to 20 kt, diminishing to 10 to 15 kt after midnight. Gusts up to 25 kt. Seas 4 to 6 ft. .FRI...W winds 5 to 10 kt. Seas 2 to 4 ft. .FRI NIGHT...W winds 5 to 10 kt, becoming SW 10 to 15 kt with gusts up to 25 kt after midnight. Seas 3 to 5 ft. .SAT...SW winds 15 to 20 kt with gusts up to 40 kt. Seas 4 to 7 ft. .SAT NIGHT...W winds 15 to 20 kt with gusts up to 30 kt, diminishing to 10 to 15 kt with gusts up to 20 kt after midnight. Seas 4 to 6 ft. .SUN...W winds 10 to 15 kt. Seas 2 to 4 ft. .SUN NIGHT...NW winds 5 to 10 kt. Seas 2 to 4 ft. .MON...E winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. .MON NIGHT...SE winds 15 to 20 kt with gusts up to 25 kt. Seas 4 to 7 ft. Rain likely. 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. $$ ANZ255-181300- Coastal Waters extending out to 25 nm South of Marthas Vineyard and Nantucket- 716 PM EST Wed Jan 17 2018 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH THURSDAY EVENING... .TONIGHT...NW winds 5 to 10 kt, increasing to 10 to 15 kt after midnight. Seas 4 to 6 ft. Patchy fog. Vsby 1 NM or less, increasing to 1 to 3 NM after midnight. .THU...NW winds 10 to 15 kt, increasing to 15 to 20 kt in the afternoon. Seas 4 to 6 ft. .THU NIGHT...NW winds 15 to 20 kt, diminishing to 10 to 15 kt after midnight. Gusts up to 25 kt. Seas 3 to 5 ft. .FRI...W winds 10 to 15 kt. Seas 3 to 5 ft. .FRI NIGHT...W winds 5 to 10 kt, increasing to 10 to 15 kt with gusts up to 30 kt after midnight. Seas 3 to 5 ft. .SAT...SW winds 15 to 20 kt with gusts up to 40 kt. Seas 5 to 8 ft. .SAT NIGHT...W winds 15 to 20 kt with gusts up to 35 kt, diminishing to 10 to 15 kt with gusts up to 20 kt after midnight. Seas 4 to 7 ft. .SUN...W winds around 10 kt. Seas 3 to 5 ft. .SUN NIGHT...NW winds 5 to 10 kt. Seas 3 to 5 ft. .MON...E winds 5 to 10 kt. Seas 2 to 3 ft. .MON NIGHT...SE winds 15 to 20 kt with gusts up to 25 kt. Seas 4 to 7 ft. Rain likely. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ256-181300- Coastal Waters from Montauk NY to Marthas Vineyard extending out to 20 nm South of Block Island- 716 PM EST Wed Jan 17 2018 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH THURSDAY EVENING... .TONIGHT...NW winds 10 to 15 kt with gusts up to 20 kt. Seas 4 to 6 ft. Patchy fog this evening. A chance of rain and snow this evening with vsby 1 NM or less. .THU...NW winds 10 to 15 kt, increasing to 15 to 20 kt in the afternoon. Gusts up to 25 kt. Seas 4 to 6 ft. .THU NIGHT...NW winds 20 to 25 kt, diminishing to 10 to 15 kt after midnight. Seas 4 to 6 ft. .FRI...W winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 5 ft. .FRI NIGHT...W winds 10 to 15 kt with gusts up to 20 kt, increasing to 15 to 20 kt with gusts up to 30 kt after midnight. Seas 3 to 5 ft. .SAT...SW winds 20 to 25 kt with gusts up to 40 kt. Seas 5 to 8 ft. .SAT NIGHT...W winds 15 to 20 kt with gusts up to 35 kt, diminishing to 10 to 15 kt with gusts up to 20 kt after midnight. Seas 4 to 7 ft. .SUN...W winds around 10 kt. Seas 3 to 5 ft. .SUN NIGHT...NW winds 5 to 10 kt. Seas 3 to 5 ft. .MON...E winds 10 to 15 kt. Seas 2 to 3 ft. .MON NIGHT...SE winds 15 to 20 kt with gusts up to 25 kt. Seas 4 to 7 ft. Rain likely. 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. $$ ANZ232-181300- Nantucket Sound- 716 PM EST Wed Jan 17 2018 .TONIGHT...NW winds 5 to 10 kt. Seas 2 to 3 ft. Patchy fog. Vsby 1 NM or less this evening. .THU...NW winds 5 to 10 kt, increasing to 10 to 15 kt with gusts up to 20 kt in the afternoon. Seas 2 to 3 ft. .THU NIGHT...NW winds 10 to 15 kt with gusts up to 20 kt, diminishing to 5 to 10 kt after midnight. Seas 2 to 3 ft. .FRI...W winds 5 to 10 kt. Seas around 2 ft. .FRI NIGHT...W winds 5 to 10 kt, becoming SW 10 to 15 kt with gusts up to 25 kt after midnight. Seas 2 to 3 ft. .SAT...SW winds 15 to 20 kt with gusts up to 35 kt. Seas 3 to 5 ft. .SAT NIGHT...W winds 10 to 15 kt. Gusts up to 30 kt, decreasing to 20 kt after midnight. Seas 2 to 4 ft. .SUN...W winds 5 to 10 kt. Seas 2 to 3 ft. .SUN NIGHT...NW winds 5 to 10 kt. Seas 2 to 3 ft. .MON...E winds 5 to 10 kt. Seas 2 to 3 ft. .MON NIGHT...SE winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 4 ft. Rain likely. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ233-181300- Vineyard Sound- 716 PM EST Wed Jan 17 2018 .TONIGHT...NW winds 5 to 10 kt, increasing to 10 to 15 kt after midnight. Seas 2 to 3 ft. Patchy fog this evening. A chance of snow this evening with vsby 1 to 3 NM. .THU...NW winds 10 to 15 kt. Seas 2 to 3 ft. .THU NIGHT...NW winds 10 to 15 kt. Gusts up to 20 kt in the evening. Seas 2 to 3 ft. .FRI...W winds around 10 kt. Seas 2 to 3 ft. .FRI NIGHT...W winds 5 to 10 kt with gusts up to 20 kt, becoming SW 10 to 15 kt with gusts up to 30 kt after midnight. Seas 2 to 4 ft. .SAT...SW winds 15 to 20 kt with gusts up to 40 kt. Seas 4 to 6 ft. .SAT NIGHT...W winds 15 to 20 kt, diminishing to 10 to 15 kt after midnight. Gusts up to 25 kt. Seas 2 to 4 ft. .SUN...W winds 5 to 10 kt. Seas 2 to 3 ft. .SUN NIGHT...NW winds 5 to 10 kt. Seas 2 to 3 ft. .MON...E winds 5 to 10 kt with gusts up to 20 kt. Seas around 2 ft. .MON NIGHT...SE winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to 5 ft. Rain likely. 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. $$ ANZ234-181300- Buzzards Bay- 716 PM EST Wed Jan 17 2018 .TONIGHT...NW winds 5 to 10 kt. Seas around 2 ft. Patchy fog this evening. A chance of snow this evening with vsby 1 to 3 NM. .THU...NW winds 5 to 10 kt. Seas around 2 ft. .THU NIGHT...NW winds 10 to 15 kt with gusts up to 20 kt, diminishing to 5 to 10 kt after midnight. Seas 1 foot or less. .FRI...W winds 5 to 10 kt. Seas 1 foot or less. .FRI NIGHT...W winds 5 to 10 kt, becoming SW 10 to 15 kt with gusts up to 25 kt after midnight. Seas 2 to 4 ft. .SAT...SW winds 15 to 20 kt with gusts up to 35 kt. Seas 3 to 5 ft. .SAT NIGHT...W winds 10 to 15 kt with gusts up to 25 kt, diminishing to 5 to 10 kt after midnight. Seas 2 to 4 ft. .SUN...W winds 5 to 10 kt. Seas around 2 ft. .SUN NIGHT...NW winds 5 to 10 kt. Seas around 2 ft. .MON...E winds 5 to 10 kt. Seas around 2 ft. .MON NIGHT...SE winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 4 ft. Rain likely. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ235-181300- Rhode Island Sound- 716 PM EST Wed Jan 17 2018 .TONIGHT...NW winds 10 to 15 kt. Gusts up to 20 kt after midnight. Seas 3 to 5 ft. Patchy fog this evening. A chance of snow this evening with vsby 1 to 3 NM. .THU...NW winds 10 to 15 kt. Gusts up to 20 kt in the afternoon. Seas 3 to 5 ft. .THU NIGHT...NW winds 15 to 20 kt, diminishing to 10 to 15 kt after midnight. Seas 2 to 4 ft. .FRI...W winds 10 to 15 kt. Gusts up to 20 kt in the morning. Seas 2 to 4 ft. .FRI NIGHT...W winds 10 to 15 kt with gusts up to 20 kt, becoming SW 15 to 20 kt with gusts up to 30 kt after midnight. Seas 3 to 5 ft. .SAT...SW winds 15 to 20 kt, increasing to 20 to 25 kt in the afternoon. Gusts up to 40 kt. Seas 4 to 7 ft. .SAT NIGHT...W winds 15 to 20 kt with gusts up to 30 kt, diminishing to 10 to 15 kt with gusts up to 20 kt after midnight. Seas 3 to 5 ft. .SUN...W winds 5 to 10 kt. Seas 2 to 4 ft. .SUN NIGHT...NW winds 5 to 10 kt. Seas 2 to 3 ft. .MON...E winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. .MON NIGHT...SE winds 15 to 20 kt with gusts up to 30 kt. Seas 4 to 6 ft. Rain likely. 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. $$ ANZ237-181300- Block Island Sound- 716 PM EST Wed Jan 17 2018 .TONIGHT...NW winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 5 ft. A chance of snow this evening. .THU...NW winds 10 to 15 kt, increasing to 15 to 20 kt in the afternoon. Seas 3 to 5 ft. .THU NIGHT...NW winds 15 to 20 kt, diminishing to 10 to 15 kt after midnight. Gusts up to 25 kt. Seas 2 to 4 ft. .FRI...W winds 10 to 15 kt. Gusts up to 20 kt in the morning. Seas 2 to 4 ft. .FRI NIGHT...W winds 10 to 15 kt. Gusts up to 20 kt, increasing to 30 kt after midnight. Seas 2 to 4 ft. .SAT...SW winds 15 to 20 kt with gusts up to 40 kt. Seas 3 to 5 ft. .SAT NIGHT...W winds 10 to 15 kt. Gusts up to 30 kt, decreasing to 20 kt after midnight. Seas 3 to 5 ft. .SUN...W winds 5 to 10 kt. Seas 2 to 3 ft. .SUN NIGHT...NW winds 5 to 10 kt. Seas 2 to 3 ft. .MON...E winds 5 to 10 kt. Seas 2 to 3 ft. A chance of rain. .MON NIGHT...SE winds 15 to 20 kt with gusts up to 25 kt. Seas 4 to 6 ft. Rain likely. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ230-181300- Boston Harbor- 716 PM EST Wed Jan 17 2018 .TONIGHT...NW winds 5 to 10 kt, increasing to 10 to 15 kt after midnight. Waves 2 to 3 ft. Snow this evening with vsby 1 to 3 NM. .THU...NW winds 10 to 15 kt. Waves 2 to 3 ft. .THU NIGHT...NW winds 10 to 15 kt with gusts up to 20 kt, becoming W 5 to 10 kt after midnight. Waves 2 to 3 ft. .FRI...W winds around 5 kt. Waves 1 foot or less. .FRI NIGHT...SW winds 5 to 10 kt. Gusts up to 20 kt after midnight. Waves around 2 ft. .SAT...SW winds 5 to 10 kt with gusts up to 30 kt. Waves around 2 ft. .SAT NIGHT...W winds 5 to 10 kt. Gusts up to 20 kt in the evening. Waves 1 foot or less. .SUN...W winds 5 to 10 kt. Waves 1 foot or less. .SUN NIGHT...NW winds around 5 kt. Waves 1 foot or less. .MON...E winds 5 to 10 kt. Waves 1 foot or less. A chance of rain. .MON NIGHT...SE winds 5 to 10 kt. Waves around 2 ft. Rain likely. 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. $$ ANZ236-181300- Narragansett Bay- 716 PM EST Wed Jan 17 2018 .TONIGHT...NW winds 5 to 10 kt. Waves 2 to 4 ft. Patchy fog this evening. A chance of snow this evening with vsby 1 to 3 NM. .THU...NW winds 5 to 10 kt. Waves 2 to 3 ft. .THU NIGHT...NW winds 10 to 15 kt with gusts up to 20 kt, diminishing to 5 to 10 kt after midnight. Waves around 2 ft. .FRI...W winds 5 to 10 kt. Waves around 2 ft. .FRI NIGHT...SW winds 5 to 10 kt. Gusts up to 25 kt after midnight. Waves 2 to 3 ft. .SAT...SW winds 10 to 15 kt with gusts up to 35 kt. Waves 2 to 4 ft. .SAT NIGHT...W winds 10 to 15 kt with gusts up to 25 kt, diminishing to 5 to 10 kt after midnight. Waves 2 to 3 ft. .SUN...W winds 5 to 10 kt. Waves around 2 ft. .SUN NIGHT...NW winds around 5 kt. Waves around 2 ft. .MON...E winds 5 to 10 kt. Waves around 2 ft. A chance of rain. .MON NIGHT...SE winds 10 to 15 kt with gusts up to 20 kt. Waves 2 to 4 ft. Rain likely. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ 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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