Coastal Waters Forecast
Issued by NWS Boston, MA

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000 FZUS51 KBOX 211716 CWFBOX Coastal Waters Forecast National Weather Service Boston/Norton MA 116 PM EDT Thu Jun 21 2018 Coastal waters from the Merrimack River MA to Watch Hill RI out to 25 NM ANZ200-220600- 116 PM EDT Thu Jun 21 2018 .Synopsis for Massachusetts and Rhode Island coastal waters... Low pres will track S of Long Island today. High pres builds across the waters tonight and Fri. Low pres and an associated warm front will approach late Fri night, bringing showers Sat into Sat night. Showers may linger on Sun as a cold front approaches. Scattered showers could persist into Mon as an upper level disturbance moves overhead. 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. $$ ANZ250-220600- Coastal waters east of Ipswich Bay and the Stellwagen Bank National Marine Sanctuary- 116 PM EDT Thu Jun 21 2018 .THIS AFTERNOON...E winds 5 to 10 kt. Seas around 2 ft. .TONIGHT...NE winds 5 to 10 kt. Seas around 2 ft. .FRI...E winds 5 to 10 kt. Seas around 2 ft. .FRI NIGHT...SE winds 5 to 10 kt. Seas 2 to 3 ft. .SAT...E winds 5 to 10 kt with gusts up to 20 kt. Seas 2 to 4 ft. A chance of showers. .SAT NIGHT...E winds 5 to 10 kt. Seas 2 to 4 ft. Showers likely. .SUN...S winds 5 to 10 kt. Seas 2 to 4 ft. A chance of showers. .SUN NIGHT...SW winds 5 to 10 kt. Seas 2 to 4 ft. A chance of showers. .MON...NW winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 5 ft. A chance of showers. .MON NIGHT...N winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ251-220600- Massachusetts Bay and Ipswich Bay- 116 PM EDT Thu Jun 21 2018 .THIS AFTERNOON...E winds around 5 kt. Seas 1 foot or less. Scattered showers. .TONIGHT...NE winds around 5 kt. Seas 1 foot or less. .FRI...E winds 5 to 10 kt. Seas around 2 ft. .FRI NIGHT...SE winds 5 to 10 kt. Seas around 2 ft. .SAT...E winds 5 to 10 kt. Seas 2 to 3 ft. A chance of showers. .SAT NIGHT...NE winds 5 to 10 kt, becoming E after midnight. Seas 2 to 3 ft. Showers likely. .SUN...SW winds around 5 kt. Seas around 2 ft. A chance of showers. .SUN NIGHT...W winds 5 to 10 kt. Seas around 2 ft. A chance of showers. .MON...NW winds 5 to 10 kt. Seas 2 to 3 ft. A chance of showers. .MON NIGHT...N winds 5 to 10 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. $$ ANZ231-220600- Cape Cod Bay- 116 PM EDT Thu Jun 21 2018 .THIS AFTERNOON...SE winds 5 to 10 kt. Seas 1 foot or less. .TONIGHT...NE winds around 5 kt. Seas 1 foot or less. Areas of fog. Vsby 1 NM or less. .FRI...E winds 5 to 10 kt. Seas 1 foot or less. .FRI NIGHT...E winds 5 to 10 kt. Seas 1 foot or less. A chance of showers. .SAT...E winds 5 to 10 kt. Gusts up to 20 kt in the morning. Seas around 2 ft. A chance of showers. .SAT NIGHT...NE winds around 5 kt, becoming SE after midnight. Seas 1 foot or less. Showers likely. .SUN...SW winds 5 to 10 kt. Seas around 2 ft. A chance of showers. .SUN NIGHT...SW winds 5 to 10 kt. Seas around 2 ft. A chance of showers. .MON...NW winds 5 to 10 kt with gusts up to 20 kt. Seas 2 to 3 ft. A chance of showers. .MON NIGHT...N winds 5 to 10 kt with gusts up to 20 kt. Seas 2 to 3 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ254-220600- Coastal waters from Provincetown MA to Chatham MA to Nantucket MA out 20 nm- 116 PM EDT Thu Jun 21 2018 .THIS AFTERNOON...S winds around 5 kt. Seas 2 to 3 ft. Scattered showers. .TONIGHT...SE winds around 5 kt, becoming NE after midnight. Seas 2 to 3 ft. Areas of fog. Vsby 1 NM or less. .FRI...E winds 5 to 10 kt. Seas 2 to 3 ft. Areas of dense fog. Vsby 1 NM or less. .FRI NIGHT...E winds 5 to 10 kt. Gusts up to 20 kt after midnight. Seas 2 to 4 ft. .SAT...E winds 10 to 15 kt, diminishing to 5 to 10 kt in the afternoon. Gusts up to 20 kt. Seas 3 to 5 ft. A chance of showers. .SAT NIGHT...S winds 5 to 10 kt. Gusts up to 20 kt after midnight. Seas 2 to 4 ft. Showers likely. Vsby 1 NM or less. .SUN...SW winds 5 to 10 kt with gusts up to 20 kt. Seas 3 to 5 ft. A chance of showers. .SUN NIGHT...SW winds 5 to 10 kt. Seas 3 to 5 ft. .MON...NW winds 10 to 15 kt with gusts up to 20 kt. Seas 4 to 6 ft. A chance of showers. .MON NIGHT...N winds 10 to 15 kt with gusts up to 20 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. $$ ANZ255-220600- Coastal Waters extending out to 25 nm South of Marthas Vineyard and Nantucket- 116 PM EDT Thu Jun 21 2018 .THIS AFTERNOON...SE winds 5 to 10 kt. Seas 2 to 3 ft. Scattered showers. Vsby 1 to 3 NM. .TONIGHT...E winds 5 to 10 kt. Seas 2 to 3 ft. Areas of fog. Vsby 1 NM or less. .FRI...E winds 5 to 10 kt. Seas 2 to 4 ft. Areas of dense fog. Vsby 1 NM or less. .FRI NIGHT...E winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 5 ft. A chance of showers. .SAT...E winds 10 to 15 kt with gusts up to 20 kt, diminishing to 5 to 10 kt in the afternoon. Seas 4 to 6 ft. A chance of showers. .SAT NIGHT...S winds 5 to 10 kt. Gusts up to 20 kt after midnight. Seas 3 to 5 ft. Showers likely. Vsby 1 to 3 NM. .SUN...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 4 to 6 ft. A chance of showers. .SUN NIGHT...SW winds 10 to 15 kt. Seas 4 to 7 ft. .MON...NW winds 10 to 15 kt with gusts up to 20 kt. Seas 4 to 6 ft. A chance of showers. .MON NIGHT...N winds 10 to 15 kt with gusts up to 20 kt. Seas 4 to 6 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ256-220600- Coastal Waters from Montauk NY to Marthas Vineyard extending out to 20 nm South of Block Island- 116 PM EDT Thu Jun 21 2018 .THIS AFTERNOON...E winds 5 to 10 kt with gusts up to 20 kt. Seas 2 to 4 ft. Isolated showers. .TONIGHT...E winds 5 to 10 kt. Gusts up to 20 kt in the evening. Seas 2 to 3 ft. Areas of fog. Vsby 1 NM or less. .FRI...E winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. .FRI NIGHT...E winds 10 to 15 kt with gusts up to 20 kt. Seas 4 to 6 ft. A chance of showers. .SAT...E winds 10 to 15 kt with gusts up to 20 kt. Seas 4 to 6 ft. A chance of showers. .SAT NIGHT...S winds 5 to 10 kt. Gusts up to 20 kt after midnight. Seas 3 to 5 ft. Showers likely. Vsby 1 to 3 NM. .SUN...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 4 to 6 ft. A chance of showers. .SUN NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 5 to 7 ft. .MON...NW winds 10 to 15 kt with gusts up to 20 kt. Seas 4 to 6 ft. .MON NIGHT...N winds 10 to 15 kt with gusts up to 20 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. $$ ANZ232-220600- Nantucket Sound- 116 PM EDT Thu Jun 21 2018 .THIS AFTERNOON...SE winds 5 to 10 kt. Seas 1 foot or less. Isolated showers. .TONIGHT...E winds 5 to 10 kt. Seas 1 foot or less. Areas of fog. Vsby 1 NM or less. .FRI...E winds 5 to 10 kt. Seas around 2 ft. Areas of fog. Vsby 1 NM or less. .FRI NIGHT...E winds 5 to 10 kt. Seas 2 to 3 ft. A chance of showers. .SAT...E winds 5 to 10 kt. Gusts up to 20 kt in the morning. Seas 2 to 3 ft. A chance of showers. .SAT NIGHT...E winds 5 to 10 kt, becoming S with gusts up to 20 kt after midnight. Seas 2 to 3 ft. Showers likely. Vsby 1 to 3 NM. .SUN...SW winds 5 to 10 kt. Seas 2 to 4 ft. A chance of showers. .SUN NIGHT...SW winds 5 to 10 kt. Seas 2 to 4 ft. .MON...NW winds around 10 kt with gusts up to 20 kt. Seas 2 to 3 ft. A chance of showers. .MON NIGHT...N winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ233-220600- Vineyard Sound- 116 PM EDT Thu Jun 21 2018 .THIS AFTERNOON...SE winds 5 to 10 kt. Seas 1 foot or less. Isolated showers. .TONIGHT...E winds 5 to 10 kt. Seas around 2 ft. Areas of fog. Vsby 1 NM or less. .FRI...E winds 5 to 10 kt. Seas around 2 ft. .FRI NIGHT...E winds around 10 kt. Seas around 2 ft. A chance of showers. .SAT...E winds 5 to 10 kt. Gusts up to 20 kt in the morning. Seas around 2 ft. A chance of showers. .SAT NIGHT...E winds 5 to 10 kt, becoming S after midnight. Seas 2 to 3 ft. Showers likely. Vsby 1 to 3 NM. .SUN...SW winds 10 to 15 kt. Seas 2 to 4 ft. A chance of showers. .SUN NIGHT...SW winds 10 to 15 kt. Seas 2 to 4 ft. .MON...NW winds around 10 kt. Seas 2 to 4 ft. A chance of showers. .MON NIGHT...N winds around 10 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. $$ ANZ234-220600- Buzzards Bay- 116 PM EDT Thu Jun 21 2018 .THIS AFTERNOON...SE winds 5 to 10 kt. Seas 1 foot or less. .TONIGHT...E winds 5 to 10 kt, becoming NE after midnight. Seas 1 foot or less. Areas of fog. Vsby 1 to 3 NM. .FRI...E winds 5 to 10 kt. Seas 1 foot or less. .FRI NIGHT...E winds 5 to 10 kt. Seas around 2 ft. A chance of showers. .SAT...E winds 5 to 10 kt. Seas around 2 ft. A chance of showers. .SAT NIGHT...E winds 5 to 10 kt, becoming S after midnight. Seas around 2 ft. Showers likely. .SUN...SW winds 5 to 10 kt. Seas 2 to 3 ft. A chance of showers. .SUN NIGHT...SW winds 5 to 10 kt. Seas 2 to 3 ft. .MON...NW winds 5 to 10 kt. Seas 2 to 3 ft. A chance of showers. .MON NIGHT...N winds 5 to 10 kt with gusts up to 20 kt. Seas 2 to 3 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ235-220600- Rhode Island Sound- 116 PM EDT Thu Jun 21 2018 .THIS AFTERNOON...SE winds 5 to 10 kt. Seas around 2 ft. Isolated showers. .TONIGHT...NE winds 5 to 10 kt. Seas around 2 ft. Areas of fog. Vsby 1 NM or less. .FRI...E winds 10 to 15 kt. Seas 2 to 3 ft. .FRI NIGHT...E winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. A chance of showers. .SAT...E winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 5 ft. A chance of showers. .SAT NIGHT...E winds 5 to 10 kt, becoming S after midnight. Seas 2 to 4 ft. Showers likely. Vsby 1 to 3 NM. .SUN...SW winds 10 to 15 kt. Seas 3 to 5 ft. A chance of showers. .SUN NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 5 ft. .MON...NW winds 5 to 10 kt with gusts up to 20 kt. Seas 3 to 5 ft. A chance of showers. .MON NIGHT...N winds around 10 kt with gusts up to 20 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. $$ ANZ237-220600- Block Island Sound- 116 PM EDT Thu Jun 21 2018 .THIS AFTERNOON...SE winds around 5 kt. Seas 2 to 3 ft. .TONIGHT...NE winds 5 to 10 kt. Seas 2 to 3 ft. Areas of fog. Vsby 1 NM or less. .FRI...E winds 5 to 10 kt. Seas 2 to 3 ft. .FRI NIGHT...E winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 5 ft. A chance of showers. .SAT...E winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 5 ft. A chance of showers. .SAT NIGHT...E winds 5 to 10 kt, becoming S after midnight. Seas 2 to 4 ft. Showers likely. Vsby 1 to 3 NM. .SUN...SW winds 5 to 10 kt. Seas 3 to 5 ft. A chance of showers. .SUN NIGHT...W winds 5 to 10 kt. Seas 3 to 5 ft. .MON...NW winds 5 to 10 kt. Seas 2 to 4 ft. A chance of showers. .MON NIGHT...N winds 5 to 10 kt. Seas 2 to 4 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ230-220600- Boston Harbor- 116 PM EDT Thu Jun 21 2018 .THIS AFTERNOON...E winds around 5 kt. Waves 1 foot or less. Scattered showers. .TONIGHT...NE winds around 5 kt. Waves 1 foot or less. .FRI...E winds around 5 kt. Waves 1 foot or less. .FRI NIGHT...E winds around 5 kt. Waves 1 foot or less. .SAT...E winds 5 to 10 kt. Waves 1 foot or less. A chance of showers. .SAT NIGHT...E winds around 5 kt. Waves 1 foot or less. Showers likely. .SUN...SW winds around 5 kt. Waves 1 foot or less. A chance of showers. .SUN NIGHT...W winds around 5 kt. Waves 1 foot or less. A chance of showers. .MON...NW winds 5 to 10 kt. Waves around 2 ft. A chance of showers. .MON NIGHT...NW 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. $$ ANZ236-220600- Narragansett Bay- 116 PM EDT Thu Jun 21 2018 .THIS AFTERNOON...SE winds 5 to 10 kt. Waves around 2 ft. .TONIGHT...E winds around 5 kt, becoming NE after midnight. Waves around 2 ft. Areas of fog. Vsby 1 NM or less. .FRI...E winds 5 to 10 kt. Waves around 2 ft. .FRI NIGHT...E winds 5 to 10 kt. Waves 2 to 3 ft. A chance of showers. .SAT...NE winds 5 to 10 kt. Waves 2 to 3 ft. A chance of showers. .SAT NIGHT...E winds around 5 kt, becoming S after midnight. Waves 2 to 3 ft. Showers likely. Vsby 1 to 3 NM. .SUN...SW winds 5 to 10 kt. Waves 2 to 3 ft. A chance of showers. .SUN NIGHT...W winds 5 to 10 kt. Waves 2 to 3 ft. .MON...NW winds 5 to 10 kt. Waves 2 to 3 ft. A chance of showers. .MON NIGHT...N winds 5 to 10 kt. Waves 2 to 3 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ 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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