Coastal Waters Forecast
Issued by NWS Boston, MA

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000 FZUS51 KBOX 210316 CWFBOX Coastal Waters Forecast for Massachusetts and Rhode Island National Weather Service Boston/Norton MA 1016 PM EST Thu Feb 20 2020 Coastal waters from the Merrimack River MA to Watch Hill RI out to 25 NM ANZ200-211600- 1016 PM EST Thu Feb 20 2020 .Synopsis for Massachusetts and Rhode Island coastal waters... A large high pres will slowly build east through Fri, passing south of the waters this weekend. The high will continue to move east and away from our waters early next week as low pres over the southern plains slowly lifts northeast. 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. $$ ANZ250-211600- Coastal waters east of Ipswich Bay and the Stellwagen Bank National Marine Sanctuary- 1016 PM EST Thu Feb 20 2020 .OVERNIGHT...N winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. A slight chance of snow showers with vsby 1 to 3 NM. .FRI...N winds 5 to 10 kt with gusts up to 20 kt, becoming W in the afternoon. Seas 2 to 4 ft. .FRI NIGHT...SW winds 10 to 15 kt, increasing to 15 to 20 kt after midnight. Gusts up to 25 kt. Seas 2 to 4 ft. .SAT...W winds 15 to 20 kt, diminishing to 10 to 15 kt in the afternoon. Gusts up to 25 kt. Seas 3 to 5 ft. .SAT NIGHT THROUGH SUN NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. .MON...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. .MON NIGHT THROUGH TUE NIGHT...SE winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. A chance of rain. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ251-211600- Massachusetts Bay and Ipswich Bay- 1016 PM EST Thu Feb 20 2020 .OVERNIGHT...NW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. .FRI...N winds 10 to 15 kt with gusts up to 20 kt, becoming W 5 to 10 kt in the afternoon. Seas 2 to 4 ft. .FRI NIGHT...SW winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 3 ft. .SAT...W winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 3 ft. .SAT NIGHT THROUGH SUN NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft. .MON...SW winds 5 to 10 kt. Seas around 2 ft. .MON NIGHT AND TUE...S winds 5 to 10 kt. Seas around 2 ft. A chance of rain. .TUE NIGHT...SE winds 5 to 10 kt. Seas 2 to 4 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. $$ ANZ231-211600- Cape Cod Bay- 1016 PM EST Thu Feb 20 2020 .OVERNIGHT...N winds 5 to 10 kt with gusts up to 20 kt. Seas 2 to 4 ft. A slight chance of snow showers. .FRI...NW winds 5 to 10 kt. Gusts up to 20 kt in the morning. Seas 2 to 4 ft. .FRI NIGHT...SW winds 5 to 10 kt, increasing to 10 to 15 kt after midnight. Gusts up to 20 kt. Seas 2 to 3 ft. .SAT...W winds 10 to 15 kt, diminishing to 5 to 10 kt in the afternoon. Gusts up to 25 kt. Seas 2 to 3 ft. .SAT NIGHT...W winds 10 to 15 kt, diminishing to 5 to 10 kt after midnight. Gusts up to 20 kt. Seas around 2 ft. .SUN AND SUN NIGHT...SW winds 5 to 10 kt. Seas around 2 ft. .MON...SW winds 5 to 10 kt. Seas around 2 ft. .MON NIGHT...SW winds 5 to 10 kt. Seas around 2 ft. A chance of rain. .TUE AND TUE NIGHT...SE winds 5 to 10 kt. Seas 2 to 3 ft. Rain likely. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ254-211600- Coastal waters from Provincetown MA to Chatham MA to Nantucket MA out 20 nm- 1016 PM EST Thu Feb 20 2020 .OVERNIGHT...NW winds 5 to 10 kt, becoming N 10 to 15 kt. Gusts up to 20 kt. Seas 2 to 4 ft. A slight chance of snow showers. Vsby 1 to 3 NM. .FRI...N winds 10 to 15 kt with gusts up to 20 kt, diminishing to 5 to 10 kt in the afternoon. Seas 2 to 4 ft. .FRI NIGHT...W winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 4 ft. .SAT...W 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 20 kt. Seas 3 to 5 ft. .SUN AND SUN NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. .MON...SW winds 5 to 10 kt with gusts up to 20 kt. Seas 2 to 3 ft. .MON NIGHT...SW winds 5 to 10 kt with gusts up to 20 kt. Seas 2 to 3 ft. A chance of rain. .TUE...S winds 5 to 10 kt. Seas 2 to 4 ft. Rain likely. .TUE NIGHT...SE winds 10 to 15 kt with gusts up to 20 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. $$ ANZ255-211600- Coastal Waters extending out to 25 nm South of Marthas Vineyard and Nantucket- 1016 PM EST Thu Feb 20 2020 .OVERNIGHT...NW winds 5 to 10 kt, becoming N 10 to 15 kt. Gusts up to 20 kt. Seas 2 to 4 ft. Light freezing spray. A slight chance of snow showers with vsby 1 to 3 NM. .FRI...N winds 10 to 15 kt, diminishing to 5 to 10 kt in the afternoon. Gusts up to 20 kt. Seas 2 to 4 ft. .FRI NIGHT...W winds 5 to 10 kt, increasing to 10 to 15 kt with gusts up to 20 kt after midnight. Seas 2 to 4 ft. .SAT...W winds 10 to 15 kt with gusts up to 25 kt. Seas 3 to 5 ft. .SAT NIGHT...W winds 10 to 15 kt with gusts up to 20 kt, diminishing to 5 to 10 kt after midnight. Seas 3 to 5 ft. .SUN AND SUN NIGHT...SW winds 10 to 15 kt. Seas 2 to 4 ft. .MON...SW winds 5 to 10 kt. Seas 2 to 3 ft. .MON NIGHT...SW winds 5 to 10 kt. Seas 2 to 3 ft. A chance of rain. .TUE...S winds 5 to 10 kt. Seas 2 to 4 ft. Rain likely. .TUE NIGHT...S winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 5 ft. Rain likely. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ256-211600- Coastal Waters from Montauk NY to Marthas Vineyard extending out to 20 nm South of Block Island- 1016 PM EST Thu Feb 20 2020 .OVERNIGHT...N winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. Light freezing spray. .FRI...N winds 10 to 15 kt with gusts up to 20 kt, diminishing to 5 to 10 kt in the afternoon. Seas 2 to 4 ft. Light freezing spray. .FRI NIGHT...W winds 10 to 15 kt. Gusts up to 20 kt after midnight. Seas 2 to 4 ft. .SAT...W 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 20 kt. Seas 3 to 5 ft. .SUN AND SUN NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. .MON...SW winds around 10 kt. Seas 2 to 3 ft. .MON NIGHT...SW winds around 10 kt with gusts up to 20 kt. Seas 2 to 3 ft. A chance of rain. .TUE...S winds 5 to 10 kt with gusts up to 20 kt. Seas 2 to 4 ft. Rain likely. .TUE NIGHT...S winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 5 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. $$ ANZ232-211600- Nantucket Sound- 1016 PM EST Thu Feb 20 2020 .OVERNIGHT...N winds 5 to 10 kt with gusts up to 20 kt. Seas 2 to 3 ft. .FRI...N winds 5 to 10 kt. Gusts up to 20 kt in the morning. Seas 2 to 3 ft. .FRI NIGHT...W winds 5 to 10 kt, increasing to 10 to 15 kt with gusts up to 20 kt after midnight. Seas 2 to 3 ft. .SAT...W winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. .SAT NIGHT THROUGH SUN NIGHT...SW winds 5 to 10 kt with gusts up to 20 kt. Seas 2 to 3 ft. .MON...SW winds 5 to 10 kt. Seas around 2 ft. .MON NIGHT...SW winds 5 to 10 kt. Seas around 2 ft. A chance of rain. .TUE AND TUE NIGHT...S winds 5 to 10 kt. Gusts up to 20 kt. Seas 2 to 3 ft. Rain likely. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ233-211600- Vineyard Sound- 1016 PM EST Thu Feb 20 2020 .OVERNIGHT...N winds 5 to 10 kt, increasing to 10 to 15 kt. Gusts up to 20 kt. Seas around 2 ft. .FRI...N winds 10 to 15 kt with gusts up to 20 kt, becoming NW 5 to 10 kt in the afternoon. Seas around 2 ft. .FRI NIGHT...W winds 5 to 10 kt, increasing to 10 to 15 kt with gusts up to 20 kt after midnight. Seas 2 to 3 ft. .SAT...W winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. .SAT NIGHT THROUGH SUN NIGHT...SW winds 5 to 10 kt with gusts up to 20 kt. Seas 2 to 3 ft. .MON...SW winds 5 to 10 kt. Seas around 2 ft. .MON NIGHT...SW winds 5 to 10 kt. Seas around 2 ft. A chance of rain. .TUE AND TUE NIGHT...S winds 5 to 10 kt. Seas 2 to 3 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. $$ ANZ234-211600- Buzzards Bay- 1016 PM EST Thu Feb 20 2020 .OVERNIGHT...N winds 5 to 10 kt with gusts up to 20 kt. Seas around 2 ft. .FRI...NW winds 5 to 10 kt. Gusts up to 20 kt in the morning. Seas around 2 ft. .FRI NIGHT...W winds 5 to 10 kt, increasing to 10 to 15 kt with gusts up to 20 kt after midnight. Seas 2 to 3 ft. .SAT...W winds 10 to 15 kt, diminishing to 5 to 10 kt in the afternoon. Gusts up to 20 kt. Seas 2 to 3 ft. .SAT NIGHT THROUGH SUN NIGHT...SW winds 5 to 10 kt. Seas 2 to 3 ft. .MON...SW winds 5 to 10 kt. Seas around 2 ft. .MON NIGHT...S winds 5 to 10 kt. Seas 1 foot or less. A chance of rain. .TUE AND TUE NIGHT...S winds 5 to 10 kt. Seas 1 foot or less, then 2 to 3 ft. Rain likely. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ235-211600- Rhode Island Sound- 1016 PM EST Thu Feb 20 2020 .OVERNIGHT...N winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Light freezing spray. .FRI...N winds 10 to 15 kt with gusts up to 20 kt, becoming NW 5 to 10 kt in the afternoon. Seas 2 to 3 ft. .FRI NIGHT...W winds 10 to 15 kt. Gusts up to 20 kt after midnight. Seas 2 to 4 ft. .SAT...W winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 4 ft. .SAT NIGHT THROUGH SUN NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. .MON...SW winds 5 to 10 kt. Seas 2 to 3 ft. .MON NIGHT...SW winds 5 to 10 kt with gusts up to 20 kt. Seas around 2 ft. A chance of rain. .TUE...S winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft. Rain likely. .TUE NIGHT...S winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 5 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. $$ ANZ237-211600- Block Island Sound- 1016 PM EST Thu Feb 20 2020 .OVERNIGHT...N winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. .FRI...N winds 10 to 15 kt with gusts up to 20 kt, becoming NW 5 to 10 kt in the afternoon. Seas 2 to 3 ft. .FRI NIGHT...W winds 10 to 15 kt. Gusts up to 20 kt after midnight. Seas 2 to 3 ft. .SAT...W winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. .SAT NIGHT THROUGH SUN NIGHT...W winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. .MON...SW winds 5 to 10 kt. Seas around 2 ft. .MON NIGHT...SW winds 5 to 10 kt. Seas 2 to 3 ft. A chance of rain. .TUE...S winds 5 to 10 kt with gusts up to 20 kt. Seas around 2 ft. Rain likely. .TUE NIGHT...S winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 5 ft. A chance of rain. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ230-211600- Boston Harbor- 1016 PM EST Thu Feb 20 2020 .OVERNIGHT...NW winds 10 to 15 kt with gusts up to 20 kt. Waves around 2 ft. .FRI...N winds 10 to 15 kt with gusts up to 20 kt, becoming W 5 to 10 kt in the afternoon. Waves around 2 ft. .FRI NIGHT...SW winds 5 to 10 kt, increasing to 10 to 15 kt after midnight. Gusts up to 20 kt. Waves 1 foot or less. .SAT...W winds 10 to 15 kt. Gusts up to 20 kt in the morning. Waves around 2 ft. .SAT NIGHT THROUGH SUN NIGHT...SW winds 5 to 10 kt. Waves 1 foot or less. .MON...SW winds 5 to 10 kt. Waves 1 foot or less. .MON NIGHT...S winds 5 to 10 kt. Waves 1 foot or less. A chance of rain. .TUE...SE winds 5 to 10 kt. Waves 1 foot or less. Rain likely. .TUE NIGHT...SE winds 5 to 10 kt. Waves 1 foot or less. 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. $$ ANZ236-211600- Narragansett Bay- 1016 PM EST Thu Feb 20 2020 .OVERNIGHT...N winds 5 to 10 kt with gusts up to 20 kt. Waves around 2 ft. .FRI...N winds 5 to 10 kt with gusts up to 20 kt, becoming NW in the afternoon. Waves 1 foot or less. .FRI NIGHT...W winds 5 to 10 kt. Waves around 2 ft. .SAT...W winds 5 to 10 kt. Waves around 2 ft. .SAT NIGHT THROUGH SUN NIGHT...SW winds 5 to 10 kt. Waves around 2 ft. .MON...SW winds 5 to 10 kt. Waves around 2 ft. .MON NIGHT...S winds 5 to 10 kt. Waves around 2 ft. A chance of rain. .TUE...S winds 5 to 10 kt. Waves 1 foot or less. Rain likely. .TUE NIGHT...S winds 5 to 10 kt. Waves 2 to 3 ft. A chance of rain. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ For the latest updates...please visit our webpage at www.weather.gov/boston You can follow us on Facebook at www.facebook.com/us.nationalweatherservice.boston.gov You can follow us on Twitter at @NWSBoston

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