Coastal Waters Forecast
Issued by NWS Boston, MA

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000 FZUS51 KBOX 211420 CWFBOX Coastal Waters Forecast National Weather Service Taunton MA 1020 AM EDT Fri Jul 21 2017 COASTAL WATERS FROM THE MERRIMACK RIVER MA TO WATCH HILL RI OUT TO 25 NM ANZ200-220315- 1020 AM EDT Fri Jul 21 2017 .Synopsis for Massachusetts and Rhode Island coastal waters... Stalled boundary over the waters today. High pressure will move overhead on Saturday. Approaching warm front on Sunday with a coastal low pressure system moving through the waters on Monday and Tuesday. High pressure builds over the waters from the west on Wednesday. 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. $$ ANZ250-220315- Coastal waters east of Ipswich Bay and the Stellwagen Bank National Marine Sanctuary- 1020 AM EDT Fri Jul 21 2017 .THIS AFTERNOON...NW winds 5 to 10 kt, becoming S. Seas 2 to 3 ft. .TONIGHT...SW winds 5 to 10 kt, becoming W after midnight. Seas 2 to 4 ft. .SAT...W winds around 5 kt, becoming S in the afternoon. Seas 2 to 3 ft. .SAT NIGHT...S winds 5 to 10 kt, becoming E with gusts up to 20 kt after midnight. Seas 2 to 4 ft. A chance of showers. .SUN...NE winds 5 to 10 kt with gusts up to 20 kt. Seas 3 to 5 ft. A chance of showers. .SUN NIGHT...E winds 5 to 10 kt. Gusts up to 20 kt in the evening. Seas 3 to 5 ft. A chance of showers. Vsby 1 to 3 NM. .MON...NE winds 5 to 10 kt with gusts up to 20 kt. Seas 2 to 4 ft. A chance of showers. .MON NIGHT...NE winds 5 to 10 kt with gusts up to 20 kt. Seas 2 to 4 ft. A chance of showers. Vsby 1 to 3 NM. .TUE...NE winds 5 to 10 kt with gusts up to 25 kt. Seas 2 to 4 ft. A chance of showers. Vsby 1 to 3 NM. .TUE NIGHT...NE winds 10 to 15 kt with gusts up to 25 kt. Seas 4 to 7 ft. A chance of showers. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ251-220315- Massachusetts Bay and Ipswich Bay- 1020 AM EDT Fri Jul 21 2017 .THIS AFTERNOON...NW winds around 5 kt, becoming S. Seas 1 to 2 ft. .TONIGHT...W winds 5 to 10 kt. Seas 2 to 3 ft. .SAT...W winds around 5 kt, becoming S in the afternoon. Seas around 2 ft. .SAT NIGHT...SW winds 5 to 10 kt, becoming NE with gusts up to 20 kt after midnight. Seas 2 to 3 ft. A chance of showers. .SUN...NE winds 5 to 10 kt with gusts up to 20 kt. Seas 3 to 5 ft. A chance of showers. .SUN NIGHT...NE winds 5 to 10 kt. Seas 3 to 5 ft. A chance of showers. Vsby 1 to 3 NM. .MON...NE winds 5 to 10 kt with gusts up to 20 kt. Seas 2 to 4 ft. A chance of showers. .MON NIGHT...NE winds 5 to 10 kt with gusts up to 20 kt. Seas 2 to 3 ft. A chance of showers. Vsby 1 to 3 NM. .TUE...NE winds 5 to 10 kt with gusts up to 20 kt. Seas 2 to 4 ft. A chance of showers. .TUE NIGHT...N winds 5 to 10 kt with gusts up to 25 kt. Seas 3 to 5 ft. A chance of showers. 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. $$ ANZ231-220315- Cape Cod Bay- 1020 AM EDT Fri Jul 21 2017 .THIS AFTERNOON...NW winds 5 to 10 kt, becoming S. Seas 1 foot or less. .TONIGHT...W winds 5 to 10 kt. Seas around 2 ft. .SAT...NW winds around 5 kt, becoming SW in the afternoon. Seas 1 foot or less. .SAT NIGHT...S winds 5 to 10 kt. Seas 1 foot or less. A chance of showers. .SUN...NE winds 5 to 10 kt with gusts up to 20 kt. Seas 2 to 3 ft. A chance of showers. .SUN NIGHT...E winds 5 to 10 kt. Gusts up to 20 kt in the evening. Seas 2 to 3 ft. Showers likely. Vsby 1 to 3 NM. .MON...NE winds 5 to 10 kt with gusts up to 20 kt. Seas around 2 ft. A chance of showers. .MON NIGHT...NE winds 5 to 10 kt with gusts up to 20 kt. Seas around 2 ft. A chance of showers. Vsby 1 to 3 NM. .TUE...NE winds 5 to 10 kt with gusts up to 20 kt. Seas 2 to 3 ft. A chance of showers. Vsby 1 to 3 NM. .TUE NIGHT...N winds 5 to 10 kt with gusts up to 25 kt. Seas 3 to 5 ft. A chance of showers. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ254-220315- Coastal waters from Provincetown MA to Chatham MA to Nantucket MA out 20 nm- 1020 AM EDT Fri Jul 21 2017 .THIS AFTERNOON...W winds 5 to 10 kt. Seas 2 to 3 ft. .TONIGHT...W winds 5 to 10 kt. Seas 2 to 4 ft. .SAT...NW winds 5 to 10 kt, becoming SW in the afternoon. Seas 2 to 4 ft. .SAT NIGHT...S winds 5 to 10 kt. Gusts up to 20 kt after midnight. Seas 2 to 3 ft. A chance of showers. .SUN...E winds 10 to 15 kt, becoming NE 5 to 10 kt in the afternoon. Gusts up to 20 kt. Seas 2 to 4 ft. A chance of showers. .SUN NIGHT...E winds 5 to 10 kt. Gusts up to 20 kt in the evening. Seas 3 to 5 ft. Showers likely. Vsby 1 to 3 NM. .MON...NE winds 5 to 10 kt with gusts up to 20 kt. Seas 3 to 5 ft. A chance of showers. .MON NIGHT...NE winds 5 to 10 kt with gusts up to 20 kt. Seas 2 to 4 ft. A chance of showers. Vsby 1 to 3 NM. .TUE...E winds 5 to 10 kt with gusts up to 20 kt. Seas 3 to 5 ft. A chance of showers. Vsby 1 to 3 NM. .TUE NIGHT...NE winds 5 to 10 kt with gusts up to 25 kt. Seas 4 to 7 ft. A chance of showers. 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. $$ ANZ255-220315- Coastal Waters extending out to 25 nm South of Marthas Vineyard and Nantucket- 1020 AM EDT Fri Jul 21 2017 .THIS AFTERNOON...W winds 5 to 10 kt. Gusts up to 20 kt. Seas 3 to 4 ft. .TONIGHT...SW winds 10 to 15 kt with gusts up to 20 kt, becoming W 5 to 10 kt after midnight. Seas 2 to 4 ft. Patchy fog. Vsby 1 NM or less. .SAT...NW winds 5 to 10 kt, becoming SW in the afternoon. Seas 2 to 4 ft. .SAT NIGHT...S winds 5 to 10 kt. Gusts up to 20 kt after midnight. Seas 2 to 3 ft. A chance of showers. .SUN...NE winds 5 to 10 kt with gusts up to 20 kt. Seas around 3 ft. A chance of showers. .SUN NIGHT...E winds 5 to 10 kt. Gusts up to 20 kt in the evening. Seas 3 to 5 ft. Showers likely. .MON...E winds 5 to 10 kt with gusts up to 20 kt. Seas 3 to 5 ft. A chance of showers. .MON NIGHT...NE winds 5 to 10 kt. Seas 3 to 5 ft. A chance of showers. Vsby 1 to 3 NM. .TUE...E winds 5 to 10 kt with gusts up to 20 kt. Seas 3 to 5 ft. A chance of showers. Vsby 1 to 3 NM. .TUE NIGHT...N winds 5 to 10 kt with gusts up to 25 kt. Seas 4 to 6 ft. A chance of showers. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ256-220315- Coastal Waters from Montauk NY to Marthas Vineyard extending out to 20 nm South of Block Island- 1020 AM EDT Fri Jul 21 2017 .THIS AFTERNOON...W winds 5 to 10 kt, becoming SW 10 to 15 kt with gusts up to 20 kt. Seas 3 to 4 ft. .TONIGHT...W winds 10 to 15 kt. Gusts up to 20 kt in the evening. Seas 3 to 4 ft. .SAT...NW winds 5 to 10 kt, becoming SW in the afternoon. Seas 3 to 4 ft. .SAT NIGHT...S winds 5 to 10 kt. Gusts up to 20 kt after midnight. Seas 2 to 3 ft. A chance of showers. Vsby 1 to 3 NM. .SUN...NE winds 5 to 10 kt with gusts up to 20 kt. Seas around 3 ft. A chance of showers. Vsby 1 to 3 NM. .SUN NIGHT...E winds 5 to 10 kt. Gusts up to 20 kt in the evening. Seas 3 to 5 ft. Showers likely. Vsby 1 to 3 NM. .MON...N winds 5 to 10 kt with gusts up to 20 kt. Seas 3 to 5 ft. A chance of showers. .MON NIGHT...NE winds 5 to 10 kt with gusts up to 20 kt. Seas around 4 ft. A chance of showers. Vsby 1 to 3 NM. .TUE...NE winds 5 to 10 kt with gusts up to 20 kt. Seas 2 to 4 ft. A chance of showers. Vsby 1 to 3 NM. .TUE NIGHT...N winds around 10 kt with gusts up to 20 kt. Seas 3 to 5 ft. A chance of showers. 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. $$ ANZ232-220315- Nantucket Sound- 1020 AM EDT Fri Jul 21 2017 .THIS AFTERNOON...W winds 5 to 10 kt. Gusts up to 20 kt. Seas 2 to 3 ft. .TONIGHT...W winds 5 to 10 kt. Gusts up to 20 kt in the evening. Seas 2 to 3 ft. .SAT...NW winds around 5 kt, becoming SW in the afternoon. Seas around 2 ft. .SAT NIGHT...S winds 5 to 10 kt. Gusts up to 20 kt after midnight. Seas around 2 ft. A chance of showers. .SUN...NE winds 5 to 10 kt with gusts up to 20 kt. Seas around 2 ft. A chance of showers. .SUN NIGHT...E winds 5 to 10 kt. Gusts up to 20 kt in the evening. Seas 2 to 3 ft. Showers likely. Vsby 1 to 3 NM. .MON...NE winds 5 to 10 kt with gusts up to 20 kt. Seas around 2 ft. A chance of showers. .MON NIGHT...NE winds 5 to 10 kt. Seas 2 to 3 ft. A chance of showers. Vsby 1 to 3 NM. .TUE...NE winds 5 to 10 kt with gusts up to 20 kt. Seas 2 to 3 ft. A chance of showers. Vsby 1 to 3 NM. .TUE NIGHT...N winds 5 to 10 kt with gusts up to 25 kt. Seas 2 to 4 ft. A chance of showers. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ233-220315- Vineyard Sound- 1020 AM EDT Fri Jul 21 2017 .THIS AFTERNOON...W winds 5 to 10 kt, becoming SW 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. .TONIGHT...SW winds 10 to 15 kt with gusts up to 20 kt, becoming W 5 to 10 kt after midnight. Seas 2 to 3 ft. .SAT...NW winds around 5 kt, becoming SW in the afternoon. Seas 2 to 3 ft. .SAT NIGHT...SW winds 5 to 10 kt, becoming SE with gusts up to 20 kt after midnight. Seas 2 to 3 ft. A chance of showers. .SUN...NE winds 5 to 10 kt with gusts up to 20 kt. Seas 2 to 3 ft. A chance of showers. .SUN NIGHT...E winds 5 to 10 kt. Gusts up to 20 kt in the evening. Seas 2 to 3 ft. Showers likely. Vsby 1 to 3 NM. .MON...NE winds 5 to 10 kt. Seas 2 to 3 ft. A chance of showers. .MON NIGHT...NE winds 5 to 10 kt with gusts up to 20 kt. Seas 2 to 3 ft. A chance of showers. Vsby 1 to 3 NM. .TUE...NE winds 5 to 10 kt with gusts up to 20 kt. Seas around 2 ft. A chance of showers. Vsby 1 to 3 NM. .TUE NIGHT...N winds around 10 kt with gusts up to 20 kt. Seas around 2 ft. A chance of showers. 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. $$ ANZ234-220315- Buzzards Bay- 1020 AM EDT Fri Jul 21 2017 .THIS AFTERNOON...W winds 5 to 10 kt, becoming SW 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft. .TONIGHT...W winds 5 to 10 kt. Gusts up to 20 kt in the evening. Seas 2 to 3 ft. .SAT...NW winds around 5 kt, becoming SW in the afternoon. Seas around 2 ft. .SAT NIGHT...SW winds 5 to 10 kt, becoming SE after midnight. Seas around 2 ft. A chance of showers. .SUN...NE winds 5 to 10 kt with gusts up to 20 kt. Seas 2 to 3 ft. A chance of showers. .SUN NIGHT...NE winds 5 to 10 kt. Gusts up to 20 kt in the evening. Seas 2 to 3 ft. Showers likely. Vsby 1 to 3 NM. .MON...NE winds 5 to 10 kt. Seas 2 to 3 ft. A chance of showers. .MON NIGHT...NE winds 5 to 10 kt with gusts up to 20 kt. Seas 2 to 3 ft. A chance of showers. Vsby 1 to 3 NM. .TUE...NE winds 5 to 10 kt with gusts up to 20 kt. Seas around 2 ft. A chance of showers. Vsby 1 to 3 NM. .TUE NIGHT...N winds 5 to 10 kt with gusts up to 20 kt. Seas around 2 ft. A chance of showers. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ235-220315- Rhode Island Sound- 1020 AM EDT Fri Jul 21 2017 .THIS AFTERNOON...W winds 5 to 10 kt, becoming SW 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. .TONIGHT...SW winds 10 to 15 kt with gusts up to 20 kt, becoming W 5 to 10 kt after midnight. Seas 2 to 4 ft. .SAT...NW winds 5 to 10 kt, becoming SW in the afternoon. Seas 2 to 3 ft. .SAT NIGHT...SW winds 5 to 10 kt, becoming SE with gusts up to 20 kt after midnight. Seas 2 to 3 ft. A chance of showers. .SUN...NE winds 5 to 10 kt with gusts up to 20 kt. Seas 2 to 3 ft. A chance of showers. .SUN NIGHT...E winds 5 to 10 kt. Gusts up to 20 kt in the evening. Seas 3 to 5 ft. Showers likely. Vsby 1 to 3 NM. .MON...NE winds 5 to 10 kt with gusts up to 20 kt. Seas 2 to 4 ft. A chance of showers. .MON NIGHT...NE winds 5 to 10 kt with gusts up to 20 kt. Seas 2 to 4 ft. A chance of showers. Vsby 1 to 3 NM. .TUE...NE winds 5 to 10 kt with gusts up to 20 kt. Seas 2 to 4 ft. A chance of showers. Vsby 1 to 3 NM. .TUE NIGHT...N winds 5 to 10 kt with gusts up to 20 kt. Seas 2 to 3 ft. A chance of showers. 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. $$ ANZ237-220315- Block Island Sound- 1020 AM EDT Fri Jul 21 2017 .THIS AFTERNOON...W winds 5 to 10 kt, becoming SW 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. .TONIGHT...W winds 5 to 10 kt. Gusts up to 20 kt in the evening. Seas 2 to 4 ft. .SAT...NW winds around 5 kt, becoming SW in the afternoon. Seas 2 to 3 ft. .SAT NIGHT...SW winds 5 to 10 kt, becoming SE with gusts up to 20 kt after midnight. Seas 2 to 3 ft. A chance of showers. .SUN...NE winds 5 to 10 kt with gusts up to 20 kt. Seas 2 to 3 ft. A chance of showers. .SUN NIGHT...E winds 5 to 10 kt. Gusts up to 20 kt in the evening. Seas 2 to 4 ft. Showers likely. Vsby 1 to 3 NM. .MON...NE winds 5 to 10 kt. Seas 2 to 4 ft. A chance of showers. .MON NIGHT...NE winds 5 to 10 kt with gusts up to 20 kt. Seas 2 to 4 ft. A chance of showers. Vsby 1 to 3 NM. .TUE...NE winds 5 to 10 kt with gusts up to 20 kt. Seas 2 to 3 ft. A chance of showers. .TUE NIGHT...N winds 5 to 10 kt with gusts up to 20 kt. Seas 2 to 3 ft. A chance of showers. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ230-220315- Boston Harbor- 1020 AM EDT Fri Jul 21 2017 .THIS AFTERNOON...W winds around 5 kt, becoming SW. Seas 1 foot or less. .TONIGHT...W winds 5 to 10 kt. Seas 1 foot or less. .SAT...W winds around 5 kt, becoming S around 5 kt in the afternoon. Seas 1 foot or less. .SAT NIGHT...NW winds around 5 kt, becoming NE with gusts up to 20 kt after midnight. Seas around 2 ft. A chance of showers. .SUN...NE winds 5 to 10 kt. Gusts up to 20 kt in the morning. Seas 2 to 3 ft. A chance of showers. .SUN NIGHT...NE winds around 5 kt. Seas around 2 ft. Showers likely. .MON...NE winds around 5 kt. Seas 1 foot or less. Showers likely. .MON NIGHT...NE winds around 5 kt. Seas 1 foot or less. A chance of showers. Vsby 1 to 3 NM. .TUE...NE winds around 5 kt. Seas around 2 ft. A chance of showers. .TUE NIGHT...N winds around 5 kt. Seas around 2 ft. A chance of showers. 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. $$ ANZ236-220315- Narragansett Bay- 1020 AM EDT Fri Jul 21 2017 .THIS AFTERNOON...W winds 5 to 10 kt. Gusts up to 20 kt. Seas 2 to 3 ft. .TONIGHT...W winds 5 to 10 kt. Gusts up to 20 kt in the evening. Seas around 2 ft. .SAT...NW winds around 5 kt, becoming SW in the afternoon. Seas 1 foot or less. .SAT NIGHT...SW winds 5 to 10 kt, becoming E after midnight. Seas around 2 ft. A chance of showers. .SUN...NE winds 5 to 10 kt. Gusts up to 20 kt in the morning. Seas around 2 ft. A chance of showers. .SUN NIGHT...NE winds 5 to 10 kt. Seas around 2 ft. Showers likely. Vsby 1 to 3 NM. .MON...NE winds around 5 kt. Seas 1 to 2 ft. A chance of showers. .MON NIGHT...NE winds around 5 kt. Seas 1 foot or less. A chance of showers. Vsby 1 to 3 NM. .TUE...NE winds around 5 kt. Seas around 2 ft. A chance of showers. .TUE NIGHT...N winds around 5 kt with gusts up to 20 kt. Seas around 2 ft. A chance of showers. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ 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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