Coastal Waters Forecast
Issued by NWS Boston, MA

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000 FZUS51 KBOX 211946 CWFBOX Coastal Waters Forecast National Weather Service Taunton MA 346 PM EDT Sat Oct 21 2017 COASTAL WATERS FROM THE MERRIMACK RIVER MA TO WATCH HILL RI OUT TO 25 NM ANZ200-220815- 346 PM EDT Sat Oct 21 2017 .Synopsis for Massachusetts and Rhode Island coastal waters... Strong high pressure will move east across the southern New England coastal waters today, then east of New England Sunday. A strong cold front approaches from the west late Tuesday. 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. $$ ANZ250-220815- Coastal waters east of Ipswich Bay and the Stellwagen Bank National Marine Sanctuary- 346 PM EDT Sat Oct 21 2017 .TONIGHT...SW winds 5 to 10 kt. Seas 2 to 4 ft. .SUN...W winds around 5 kt, becoming SE in the afternoon. Seas 2 to 3 ft. .SUN NIGHT...S winds 5 to 10 kt. Seas 2 to 3 ft. .MON...S winds 5 to 10 kt. Gusts up to 20 kt in the afternoon. Seas 2 to 3 ft. .MON NIGHT...S winds 10 to 15 kt with gusts up to 25 kt. Seas 3 to 5 ft. .TUE...S winds 20 to 25 kt with gusts up to 30 kt. Seas 4 to 7 ft. A chance of rain. .TUE NIGHT...S winds 20 to 25 kt with gusts up to 35 kt. Seas 6 to 9 ft. Rain. .WED...S winds 20 to 25 kt with gusts up to 40 kt. Seas 6 to 9 ft. Rain. Vsby 1 to 3 NM. .WED NIGHT...S winds 10 to 15 kt with gusts up to 20 kt. Seas 5 to 8 ft. Rain likely. Vsby 1 to 3 NM. .THU...SW winds 5 to 10 kt with gusts up to 20 kt. Seas 5 to 8 ft. A chance of showers. .THU NIGHT...W winds 10 to 15 kt with gusts up to 30 kt. Seas 5 to 8 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ251-220815- Massachusetts Bay and Ipswich Bay- 346 PM EDT Sat Oct 21 2017 .TONIGHT...SW winds 5 to 10 kt. Seas around 2 ft. .SUN...NW winds around 5 kt, becoming E in the afternoon. Seas 2 to 3 ft. .SUN NIGHT...S winds around 5 kt. Seas 2 to 3 ft. .MON...S winds 5 to 10 kt. Seas 2 to 3 ft. .MON NIGHT...S winds 5 to 10 kt, increasing to 10 to 15 kt after midnight. Gusts up to 20 kt. Seas 2 to 4 ft. A chance of showers. .TUE...S winds 15 to 20 kt with gusts up to 30 kt. Seas 3 to 5 ft. Rain likely. .TUE NIGHT...S winds 15 to 20 kt with gusts up to 30 kt. Seas 4 to 7 ft. Rain. .WED...S winds 15 to 20 kt with gusts up to 35 kt. Seas 4 to 6 ft. Rain. Vsby 1 to 3 NM. .WED NIGHT...S winds 5 to 10 kt with gusts up to 20 kt. Seas 3 to 5 ft. Rain likely. .THU...SW 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. .THU NIGHT...W winds 10 to 15 kt with gusts up to 25 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. $$ ANZ231-220815- Cape Cod Bay- 346 PM EDT Sat Oct 21 2017 .TONIGHT...SW winds 5 to 10 kt, diminishing to around 5 kt after midnight. Seas 1 foot or less. .SUN...S winds around 5 kt. Seas 1 foot or less. .SUN NIGHT...S winds around 5 kt. Seas 1 foot or less. .MON...S winds 5 to 10 kt. Gusts up to 20 kt in the afternoon. Seas around 2 ft. .MON NIGHT...S winds 5 to 10 kt with gusts up to 25 kt. Seas 2 to 3 ft. .TUE...S winds 15 to 20 kt with gusts up to 35 kt. Seas 2 to 4 ft. Rain likely. .TUE NIGHT...S winds 15 to 20 kt, increasing to 20 to 25 kt after midnight. Gusts up to 30 kt. Seas 2 to 4 ft. Rain. .WED...S winds 15 to 20 kt with gusts up to 35 kt. Seas 2 to 4 ft. Rain. .WED NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Rain. .THU...SW winds 5 to 10 kt with gusts up to 20 kt. Seas 2 to 4 ft. A chance of showers. Vsby 1 to 3 NM. .THU NIGHT...W winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 4 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ254-220815- Coastal waters from Provincetown MA to Chatham MA to Nantucket MA out 20 nm- 346 PM EDT Sat Oct 21 2017 .TONIGHT...SW winds 5 to 10 kt. Seas 2 to 4 ft. .SUN...S winds around 5 kt. Seas 2 to 3 ft. .SUN NIGHT...S winds around 5 kt. Seas 2 to 3 ft. .MON...S winds 5 to 10 kt. Gusts up to 20 kt in the afternoon. Seas 2 to 3 ft. .MON NIGHT...S winds 10 to 15 kt. Gusts up to 20 kt, increasing to 30 kt after midnight. Seas 3 to 5 ft. .TUE...S winds 15 to 20 kt with gusts up to 35 kt. Seas 5 to 8 ft. A chance of rain. .TUE NIGHT...S winds 20 to 25 kt with gusts up to 30 kt. Seas 7 to 10 ft. Rain. .WED...S winds 20 to 25 kt with gusts up to 40 kt. Seas 8 to 11 ft. Rain. Vsby 1 to 3 NM. .WED NIGHT...SW winds 10 to 15 kt with gusts up to 25 kt. Seas 7 to 10 ft. Rain. Vsby 1 to 3 NM. .THU...SW winds 5 to 10 kt with gusts up to 25 kt. Seas 6 to 9 ft. Showers likely. .THU NIGHT...W winds 10 to 15 kt with gusts up to 30 kt. Seas 6 to 9 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. $$ ANZ255-220815- Coastal Waters extending out to 25 nm South of Marthas Vineyard and Nantucket- 346 PM EDT Sat Oct 21 2017 .TONIGHT...SW winds 5 to 10 kt. Seas around 3 ft. .SUN...SW winds 5 to 10 kt. Seas 2 to 3 ft. .SUN NIGHT...S winds around 5 kt. Seas 2 to 3 ft. .MON...S winds 5 to 10 kt. Gusts up to 20 kt in the afternoon. Seas 2 to 3 ft. .MON NIGHT...S winds 10 to 15 kt. Gusts up to 20 kt, increasing to 30 kt after midnight. Seas 3 to 5 ft. .TUE...S winds 20 to 25 kt with gusts up to 35 kt. Seas 5 to 8 ft. A chance of rain. .TUE NIGHT...S winds 20 to 25 kt with gusts up to 30 kt. Seas 8 to 11 ft. Rain. .WED...S winds 20 to 25 kt with gusts up to 40 kt. Seas 9 to 12 ft. Rain. .WED NIGHT...SW winds 10 to 15 kt with gusts up to 25 kt. Seas 7 to 10 ft. Rain. .THU...W winds 10 to 15 kt with gusts up to 25 kt. Seas 6 to 9 ft. A chance of showers. .THU NIGHT...W winds 10 to 15 kt with gusts up to 30 kt. Seas 7 to 10 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ256-220815- Coastal Waters from Montauk NY to Marthas Vineyard extending out to 20 nm South of Block Island- 346 PM EDT Sat Oct 21 2017 .TONIGHT...SW winds 5 to 10 kt, diminishing to around 5 kt after midnight. Seas around 3 ft. .SUN...SW winds around 5 kt. Seas 2 to 3 ft. .SUN NIGHT...S winds around 5 kt. Seas 2 to 3 ft. .MON...S winds 5 to 10 kt. Gusts up to 20 kt in the afternoon. Seas 2 to 3 ft. .MON NIGHT...S winds 10 to 15 kt with gusts up to 30 kt. Seas 4 to 6 ft. .TUE...S winds 20 to 25 kt with gusts up to 35 kt. Seas 6 to 9 ft. Rain likely. .TUE NIGHT...S winds 15 to 20 kt with gusts up to 30 kt. Seas 8 to 11 ft. Rain. Vsby 1 to 3 NM. .WED...S winds 20 to 25 kt with gusts up to 35 kt. Seas 9 to 12 ft. Rain. Vsby 1 to 3 NM. .WED NIGHT...SW winds 10 to 15 kt with gusts up to 25 kt. Seas 8 to 11 ft. Rain likely. .THU...W winds 10 to 15 kt with gusts up to 25 kt. Seas 7 to 9 ft. .THU NIGHT...W winds around 15 kt with gusts up to 30 kt. Seas 6 to 9 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. $$ ANZ232-220815- Nantucket Sound- 346 PM EDT Sat Oct 21 2017 .TONIGHT...SW winds 5 to 10 kt. Seas around 2 ft. .SUN...SW winds around 5 kt, increasing to 5 to 10 kt in the afternoon. Seas 1 foot or less. .SUN NIGHT...S winds 5 to 10 kt. Seas 1 foot or less. .MON...S winds 5 to 10 kt. Seas around 2 ft. .MON NIGHT...S winds 10 to 15 kt. Gusts up to 20 kt, increasing to 30 kt after midnight. Seas 2 to 3 ft. .TUE...S winds 15 to 20 kt with gusts up to 35 kt. Seas 3 to 5 ft. A chance of rain. .TUE NIGHT...S winds 15 to 20 kt, increasing to 20 to 25 kt after midnight. Gusts up to 30 kt. Seas 4 to 6 ft. Rain. .WED...S winds 20 to 25 kt with gusts up to 35 kt. Seas 4 to 6 ft. Rain. .WED NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. Rain. .THU...SW winds 10 to 15 kt with gusts up to 25 kt. Seas 3 to 5 ft. A chance of showers. .THU NIGHT...W winds 10 to 15 kt with gusts up to 25 kt. Seas 3 to 5 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ233-220815- Vineyard Sound- 346 PM EDT Sat Oct 21 2017 .TONIGHT...SW winds 5 to 10 kt. Seas around 2 ft. .SUN...SW winds 5 to 10 kt. Seas 1 foot or less. .SUN NIGHT...S winds 5 to 10 kt. Seas 1 foot or less. .MON...S winds 5 to 10 kt. Gusts up to 20 kt in the afternoon. Seas around 2 ft. .MON NIGHT...S winds 10 to 15 kt. Gusts up to 20 kt, increasing to 30 kt after midnight. Seas 2 to 3 ft. A chance of showers. .TUE...S winds 20 to 25 kt with gusts up to 35 kt. Seas 3 to 5 ft. Rain likely. .TUE NIGHT...S winds 15 to 20 kt with gusts up to 30 kt. Seas 4 to 7 ft. Rain. .WED...S winds 20 to 25 kt with gusts up to 30 kt. Seas 4 to 7 ft. Rain. .WED NIGHT...SW winds 5 to 10 kt with gusts up to 20 kt. Seas 3 to 5 ft. Rain likely. .THU...W winds 10 to 15 kt with gusts up to 25 kt. Seas 3 to 5 ft. A chance of showers. .THU NIGHT...W winds 10 to 15 kt with gusts up to 25 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. $$ ANZ234-220815- Buzzards Bay- 346 PM EDT Sat Oct 21 2017 .TONIGHT...SW winds 5 to 10 kt. Seas 1 foot or less. .SUN...SW winds around 5 kt, increasing to 5 to 10 kt in the afternoon. Seas 1 foot or less. .SUN NIGHT...S winds 5 to 10 kt. Seas 1 foot or less. .MON...S winds 5 to 10 kt. Gusts up to 20 kt in the afternoon. Seas 1 foot or less. .MON NIGHT...S winds 5 to 10 kt with gusts up to 30 kt. Seas 2 to 3 ft. A chance of showers. .TUE...S winds 15 to 20 kt with gusts up to 35 kt. Seas 3 to 4 ft. Rain likely. .TUE NIGHT...S winds 15 to 20 kt with gusts up to 30 kt. Seas 3 to 5 ft. Rain. .WED...S winds 15 to 20 kt with gusts up to 30 kt. Seas 2 to 4 ft. Rain. .WED NIGHT...SW winds 5 to 10 kt with gusts up to 20 kt. Seas 2 to 3 ft. Rain likely. .THU...W winds 5 to 10 kt with gusts up to 20 kt. Seas 2 to 3 ft. A chance of showers. Vsby 1 to 3 NM. .THU NIGHT...W winds around 10 kt with gusts up to 25 kt. Seas 2 to 4 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ235-220815- Rhode Island Sound- 346 PM EDT Sat Oct 21 2017 .TONIGHT...SW winds 5 to 10 kt. Seas 2 to 3 ft. .SUN...SW winds 5 to 10 kt. Seas around 2 ft. .SUN NIGHT...S winds 5 to 10 kt. Seas 2 to 3 ft. .MON...S 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. .MON NIGHT...S winds 10 to 15 kt with gusts up to 30 kt. Seas 3 to 5 ft. A chance of showers. .TUE...S winds 20 to 25 kt with gusts up to 35 kt. Seas 5 to 8 ft. Rain likely. .TUE NIGHT...S winds 15 to 20 kt with gusts up to 30 kt. Seas 6 to 9 ft. Rain. Vsby 1 to 3 NM. .WED...S winds 20 to 25 kt with gusts up to 30 kt. Seas 7 to 10 ft. Rain. Vsby 1 to 3 NM. .WED NIGHT...SW winds 5 to 10 kt with gusts up to 20 kt. Seas 5 to 8 ft. Rain likely. .THU...W winds 10 to 15 kt with gusts up to 25 kt. Seas 4 to 7 ft. A chance of showers. .THU NIGHT...W winds 10 to 15 kt with gusts up to 30 kt. Seas 4 to 7 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. $$ ANZ237-220815- Block Island Sound- 346 PM EDT Sat Oct 21 2017 .TONIGHT...SW winds 5 to 10 kt, diminishing to around 5 kt after midnight. Seas 2 to 3 ft. .SUN...S winds around 5 kt. Seas around 2 ft. .SUN NIGHT...S winds around 5 kt. Seas 2 to 3 ft. .MON...S winds 5 to 10 kt. Gusts up to 20 kt in the afternoon. Seas 2 to 3 ft. Patchy fog. .MON NIGHT...S winds 10 to 15 kt with gusts up to 30 kt. Seas 3 to 5 ft. A chance of showers. .TUE...S winds 20 to 25 kt with gusts up to 35 kt. Seas 4 to 7 ft. Rain. .TUE NIGHT...S winds 15 to 20 kt with gusts up to 30 kt. Seas 6 to 9 ft. Rain. Vsby 1 to 3 NM. .WED...S winds 15 to 20 kt with gusts up to 30 kt. Seas 5 to 8 ft. Rain likely. Vsby 1 to 3 NM. .WED NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 5 to 8 ft. Rain likely. .THU...W winds 10 to 15 kt with gusts up to 25 kt. Seas 4 to 7 ft. A chance of showers. .THU NIGHT...W winds 10 to 15 kt with gusts up to 30 kt. Seas 4 to 6 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ230-220815- Boston Harbor- 346 PM EDT Sat Oct 21 2017 .TONIGHT...SW winds around 5 kt. Waves 1 foot or less. .SUN...NW winds around 5 kt, becoming E around 5 kt in the afternoon. Waves 1 foot or less. .SUN NIGHT...S winds around 5 kt. Waves around 2 ft. .MON...S winds 5 to 10 kt. Waves 1 foot or less. .MON NIGHT...S winds 5 to 10 kt with gusts up to 25 kt. Waves around 2 ft. A chance of showers. .TUE...S winds 10 to 15 kt with gusts up to 30 kt. Waves around 2 ft. Rain. .TUE NIGHT...S winds 10 to 15 kt with gusts up to 30 kt. Waves around 2 ft. Rain. Vsby 1 to 3 NM. .WED...S winds 10 to 15 kt with gusts up to 30 kt. Waves around 2 ft. Rain. Vsby 1 to 3 NM. .WED NIGHT...S winds 5 to 10 kt. Waves around 2 ft. Rain likely. .THU...SW winds 5 to 10 kt. Waves around 2 ft. A chance of showers. Vsby 1 to 3 NM. .THU NIGHT...W winds 5 to 10 kt with gusts up to 25 kt. Waves around 2 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. $$ ANZ236-220815- Narragansett Bay- 346 PM EDT Sat Oct 21 2017 .TONIGHT...SW winds 5 to 10 kt, diminishing to around 5 kt after midnight. Waves around 2 ft. .SUN...S winds around 5 kt. Waves around 2 ft. .SUN NIGHT...S winds around 5 kt. Waves around 2 ft. .MON...S winds 5 to 10 kt. Gusts up to 20 kt in the afternoon. Waves around 2 ft. Patchy fog. Vsby 1 to 3 NM. .MON NIGHT...S winds 5 to 10 kt with gusts up to 25 kt. Waves 2 to 4 ft. A chance of showers. .TUE...S winds 15 to 20 kt with gusts up to 35 kt. Waves 3 to 5 ft. Rain. .TUE NIGHT...S winds 15 to 20 kt with gusts up to 30 kt. Waves 3 to 5 ft. Rain. Vsby 1 to 3 NM. .WED...S winds 10 to 15 kt with gusts up to 30 kt. Waves 3 to 5 ft, except 5 to 8 ft at the bay entrance. Rain likely. Vsby 1 to 3 NM. .WED NIGHT...SW winds 5 to 10 kt. Waves 2 to 4 ft. Rain likely. .THU...W winds 5 to 10 kt with gusts up to 20 kt. Waves 2 to 4 ft. A chance of showers. Vsby 1 to 3 NM. .THU NIGHT...W winds 5 to 10 kt with gusts up to 25 kt. Waves 2 to 4 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ 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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