Coastal Waters Forecast
Issued by NWS Boston, MA

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000 FZUS51 KBOX 211410 CWFBOX Coastal Waters Forecast National Weather Service Taunton MA 1010 AM EDT Sat Oct 21 2017 COASTAL WATERS FROM THE MERRIMACK RIVER MA TO WATCH HILL RI OUT TO 25 NM ANZ200-220315- 1010 AM 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. $$ ANZ250-220315- Coastal waters east of Ipswich Bay and the Stellwagen Bank National Marine Sanctuary- 1010 AM EDT Sat Oct 21 2017 .TODAY...W winds around 5 kt, becoming SW this afternoon. Seas 2 to 3 ft. .TONIGHT...SW winds 5 to 10 kt. Seas 2 to 3 ft. .SUN...S winds 5 to 10 kt. Gusts up to 20 kt in the afternoon. Seas 2 to 3 ft. .SUN NIGHT...S winds 5 to 10 kt. Gusts up to 20 kt in the evening. Seas 2 to 3 ft. .MON...S winds 5 to 10 kt, increasing to 10 to 15 kt with gusts up to 20 kt in the afternoon. Seas 2 to 3 ft. .MON NIGHT...S winds 10 to 15 kt. Gusts up to 20 kt in the evening. Seas 2 to 4 ft. .TUE...S winds 15 to 20 kt with gusts up to 25 kt. Seas 4 to 7 ft. Areas of fog. A chance of showers. Vsby 1 to 3 NM. .TUE NIGHT...S winds 20 to 25 kt with gusts up to 35 kt. Seas 7 to 10 ft. Areas of fog. Showers with a chance of tstms. Vsby 1 to 3 NM. .WED...S winds 15 to 20 kt with gusts up to 35 kt. Seas 7 to 10 ft. Areas of fog. Showers. Vsby 1 to 3 NM. .WED NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 5 to 8 ft. Areas of fog. Showers likely. Vsby 1 to 3 NM. Winds and seas higher in and near tstms. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ251-220315- Massachusetts Bay and Ipswich Bay- 1010 AM EDT Sat Oct 21 2017 .TODAY...W winds around 5 kt, becoming S this afternoon. Seas around 2 ft. .TONIGHT...SW winds 5 to 10 kt. Seas around 2 ft. .SUN...W winds around 5 kt, becoming S in the afternoon. Seas around 2 ft. .SUN NIGHT...S winds 5 to 10 kt. Seas around 2 ft. .MON...S winds 5 to 10 kt. Seas around 2 ft. .MON NIGHT...S winds 5 to 10 kt. Seas 2 to 3 ft. Areas of fog. Vsby 1 to 3 NM. .TUE...S winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 4 ft. Areas of fog. A chance of showers. Vsby 1 to 3 NM. .TUE NIGHT...S winds 15 to 20 kt with gusts up to 30 kt. Seas 4 to 7 ft. Areas of fog. Showers with a chance of tstms. Vsby 1 to 3 NM. .WED...S winds 10 to 15 kt with gusts up to 35 kt. Seas 4 to 6 ft. Areas of fog. Showers. Vsby 1 to 3 NM. .WED NIGHT...SW winds 5 to 10 kt with gusts up to 20 kt. Seas 2 to 4 ft. Areas of fog. A chance of showers. Vsby 1 to 3 NM. Winds and seas higher in and near tstms. 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. $$ ANZ231-220315- Cape Cod Bay- 1010 AM EDT Sat Oct 21 2017 .TODAY...W winds around 5 kt, becoming SW this afternoon. Seas 1 foot or less. .TONIGHT...SW winds 5 to 10 kt. Seas 1 foot or less. .SUN...SW winds 5 to 10 kt. Seas 1 foot or less. .SUN NIGHT...S winds 5 to 10 kt. Seas 1 foot or less. .MON...S winds 5 to 10 kt. Seas around 2 ft. .MON NIGHT...S winds 5 to 10 kt. Seas around 2 ft. Areas of fog. Vsby 1 to 3 NM. .TUE...S winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 4 ft. Areas of fog. A chance of showers. Vsby 1 to 3 NM. .TUE NIGHT...S winds 20 to 25 kt with gusts up to 30 kt. Seas 3 to 5 ft. Areas of fog. Showers with a chance of tstms. Vsby 1 to 3 NM. .WED...S winds 15 to 20 kt with gusts up to 35 kt. Seas 2 to 4 ft. Areas of fog. Showers. Vsby 1 to 3 NM. .WED NIGHT...SW winds 5 to 10 kt with gusts up to 20 kt. Seas 2 to 3 ft. Areas of fog. Showers likely. Vsby 1 to 3 NM. Winds and seas higher in and near tstms. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ254-220315- Coastal waters from Provincetown MA to Chatham MA to Nantucket MA out 20 nm- 1010 AM EDT Sat Oct 21 2017 .TODAY...N winds around 5 kt, becoming SW with gusts up to 20 kt this afternoon. Seas 2 to 3 ft. .TONIGHT...SW winds 5 to 10 kt. Seas 2 to 3 ft. .SUN...S winds 5 to 10 kt. 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. Seas 2 to 3 ft. .MON NIGHT...S winds around 10 kt. Seas 3 to 5 ft. .TUE...S winds 15 to 20 kt with gusts up to 25 kt. Seas 4 to 7 ft. Areas of fog. A chance of showers. Vsby 1 to 3 NM. .TUE NIGHT...S winds 20 to 25 kt with gusts up to 40 kt. Seas 8 to 11 ft, except 10 to 15 ft S and E of Nantucket. Areas of fog. Showers. Vsby 1 to 3 NM. .WED...S winds 15 to 20 kt with gusts up to 40 kt. Seas 8 to 11 ft, except 11 to 16 ft S and E of Nantucket. Areas of fog. Showers with a chance of tstms. Vsby 1 to 3 NM. .WED NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 7 to 10 ft. Areas of fog. Showers likely. Vsby 1 to 3 NM. Winds and seas higher in and near tstms. 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. $$ ANZ255-220315- Coastal Waters extending out to 25 nm South of Marthas Vineyard and Nantucket- 1010 AM EDT Sat Oct 21 2017 .TODAY...NE winds around 5 kt, becoming S this afternoon. Seas 2 to 3 ft. .TONIGHT...SW winds 5 to 10 kt. Seas 2 to 3 ft. .SUN...SW winds 5 to 10 kt. Seas 2 to 3 ft. .SUN NIGHT...S winds around 5 kt. Seas around 2 ft. .MON...S winds 5 to 10 kt. Seas 2 to 3 ft. .MON NIGHT...S winds 10 to 15 kt. Seas 3 to 5 ft. Areas of fog. Vsby 1 to 3 NM. .TUE...S winds 15 to 20 kt with gusts up to 30 kt. Seas 5 to 8 ft. Areas of fog. A chance of showers. Vsby 1 to 3 NM. .TUE NIGHT...S winds 20 to 25 kt with gusts up to 40 kt. Seas 9 to 14 ft. Areas of fog. Showers with a chance of tstms. Vsby 1 to 3 NM. .WED...S winds 15 to 20 kt with gusts up to 40 kt. Seas 9 to 14 ft. Areas of fog. Showers with a chance of tstms. Vsby 1 to 3 NM. .WED NIGHT...SW winds 5 to 10 kt with gusts up to 20 kt. Seas 7 to 10 ft. Areas of fog. Showers likely. Vsby 1 to 3 NM. Winds and seas higher in and near tstms. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ256-220315- Coastal Waters from Montauk NY to Marthas Vineyard extending out to 20 nm South of Block Island- 1010 AM EDT Sat Oct 21 2017 .TODAY...NE winds 5 to 10 kt, becoming S this afternoon. Seas 2 to 3 ft. .TONIGHT...SW winds 5 to 10 kt. Seas 2 to 3 ft. .SUN...SW winds 5 to 10 kt. Seas 2 to 3 ft. .SUN NIGHT...S winds 5 to 10 kt. Seas around 2 ft. .MON...S winds 5 to 10 kt. Seas 2 to 3 ft. .MON NIGHT...S winds 10 to 15 kt. Gusts up to 20 kt after midnight. Seas 2 to 4 ft. Areas of fog. Vsby 1 to 3 NM. .TUE...S winds 15 to 20 kt with gusts up to 30 kt. Seas 6 to 9 ft. Areas of fog. A chance of showers. Vsby 1 to 3 NM. .TUE NIGHT...S winds 20 to 25 kt with gusts up to 35 kt. Seas 9 to 14 ft. Areas of fog. Showers with a chance of tstms. Vsby 1 to 3 NM. .WED...S winds 15 to 20 kt with gusts up to 35 kt. Seas 10 to 13 ft. Areas of fog. Showers likely. Vsby 1 to 3 NM. .WED NIGHT...SW winds around 10 kt with gusts up to 20 kt. Seas 8 to 11 ft. Areas of fog. A chance of showers. Vsby 1 to 3 NM. Winds and seas higher in and near tstms. 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. $$ ANZ232-220315- Nantucket Sound- 1010 AM EDT Sat Oct 21 2017 .TODAY...N winds around 5 kt, becoming SW this afternoon. Seas around 2 ft. .TONIGHT...SW winds 5 to 10 kt. Seas around 2 ft. .SUN...SW winds 5 to 10 kt. Seas 1 foot or less. .SUN NIGHT...S winds 5 to 10 kt. Seas 1 foot or less. .MON...S winds 5 to 10 kt. Seas around 2 ft. .MON NIGHT...S winds around 10 kt. Seas 2 to 3 ft. Areas of fog. Vsby 1 to 3 NM. .TUE...S winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to 5 ft. Areas of fog. A chance of showers. Vsby 1 to 3 NM. .TUE NIGHT...S winds 20 to 25 kt with gusts up to 35 kt. Seas 4 to 6 ft. Areas of fog. Showers with a chance of tstms. Vsby 1 to 3 NM. .WED...S winds 15 to 20 kt with gusts up to 35 kt. Seas 3 to 5 ft. Areas of fog. Showers. Vsby 1 to 3 NM. .WED NIGHT...SW winds 5 to 10 kt with gusts up to 20 kt. Seas 3 to 5 ft. Areas of fog. Showers likely. Vsby 1 to 3 NM. Winds and seas higher in and near tstms. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ233-220315- Vineyard Sound- 1010 AM EDT Sat Oct 21 2017 .TODAY...N winds around 5 kt, becoming SW this afternoon. Seas around 2 ft. .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. Seas around 2 ft. .MON NIGHT...S winds around 10 kt. Gusts up to 20 kt after midnight. Seas 2 to 3 ft. Areas of fog. Vsby 1 to 3 NM. .TUE...S winds 15 to 20 kt with gusts up to 30 kt. Seas 3 to 5 ft. Areas of fog. A chance of showers. Vsby 1 to 3 NM. .TUE NIGHT...S winds 20 to 25 kt with gusts up to 35 kt. Seas 4 to 7 ft. Areas of fog. Showers with a chance of tstms. Vsby 1 to 3 NM. .WED...S winds 10 to 15 kt with gusts up to 35 kt. Seas 4 to 7 ft. Areas of fog. Showers. Vsby 1 to 3 NM. .WED NIGHT...SW winds 5 to 10 kt with gusts up to 20 kt. Seas 4 to 6 ft. Areas of fog. Showers likely. Vsby 1 to 3 NM. Winds and seas higher in and near tstms. 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. $$ ANZ234-220315- Buzzards Bay- 1010 AM EDT Sat Oct 21 2017 .TODAY...NW winds around 5 kt, becoming SW this afternoon. Seas 1 foot or less. .TONIGHT...SW winds 5 to 10 kt. Seas 1 foot or less. .SUN...SW winds around 5 kt, increasing to 5 to 10 kt in the afternoon. Seas 1 foot or less. .SUN NIGHT...S winds 5 to 10 kt. Seas 1 foot or less. .MON...S winds 5 to 10 kt. Gusts up to 20 kt in the afternoon. Seas 1 foot or less. .MON NIGHT...S winds 5 to 10 kt. Seas around 2 ft. Areas of fog. Vsby 1 to 3 NM. .TUE...S winds 15 to 20 kt with gusts up to 30 kt. Seas 2 to 4 ft. Areas of fog. A chance of showers. Vsby 1 to 3 NM. .TUE NIGHT...S winds 15 to 20 kt with gusts up to 30 kt. Seas 3 to 5 ft. Areas of fog. Showers with a chance of tstms. Vsby 1 to 3 NM. .WED...S winds 10 to 15 kt with gusts up to 35 kt. Seas 4 to 6 ft. Areas of fog. Showers. Vsby 1 to 3 NM. .WED NIGHT...SW winds 5 to 10 kt with gusts up to 20 kt. Seas 2 to 4 ft. Areas of fog. A chance of showers. Vsby 1 to 3 NM. Winds and seas higher in and near tstms. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ235-220315- Rhode Island Sound- 1010 AM EDT Sat Oct 21 2017 .TODAY...NE winds 5 to 10 kt, becoming SW 10 to 15 kt this afternoon. Seas 2 to 3 ft. .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 around 2 ft. .MON...S winds 5 to 10 kt, increasing to 10 to 15 kt in the afternoon. Seas around 2 ft. .MON NIGHT...S winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. Areas of fog. Vsby 1 to 3 NM. .TUE...S winds 15 to 20 kt with gusts up to 30 kt. Seas 4 to 6 ft. Areas of fog. A chance of showers. Vsby 1 to 3 NM. .TUE NIGHT...S winds 20 to 25 kt with gusts up to 35 kt. Seas 6 to 9 ft. Areas of fog. Showers with a chance of tstms. Vsby 1 to 3 NM. .WED...S winds 10 to 15 kt with gusts up to 35 kt. Seas 6 to 9 ft. Areas of fog. Showers likely. Vsby 1 to 3 NM. .WED NIGHT...SW winds 5 to 10 kt with gusts up to 20 kt. Seas 6 to 9 ft. Areas of fog. A chance of showers. Vsby 1 to 3 NM. Winds and seas higher in and near tstms. 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. $$ ANZ237-220315- Block Island Sound- 1010 AM EDT Sat Oct 21 2017 .TODAY...NE winds around 5 kt, becoming SW this afternoon. Seas 2 to 3 ft. .TONIGHT...SW winds 5 to 10 kt. Seas 2 to 3 ft. .SUN...SW winds 5 to 10 kt. Seas around 2 ft. .SUN NIGHT...S winds 5 to 10 kt. Seas around 2 ft. .MON...S winds 5 to 10 kt. Seas around 2 ft. .MON NIGHT...S winds around 10 kt. Seas 2 to 4 ft. Areas of fog. Vsby 1 to 3 NM. .TUE...S winds 15 to 20 kt with gusts up to 30 kt. Seas 4 to 7 ft. Areas of fog. A chance of showers. Vsby 1 to 3 NM. .TUE NIGHT...S winds 20 to 25 kt with gusts up to 30 kt. Seas 6 to 9 ft. Areas of fog. Showers likely. Vsby 1 to 3 NM. .WED...SW winds 10 to 15 kt with gusts up to 30 kt. Seas 6 to 9 ft. Areas of fog. Showers likely. Vsby 1 to 3 NM. .WED NIGHT...W winds 5 to 10 kt. Seas 5 to 8 ft. Areas of fog. A chance of showers. Vsby 1 to 3 NM. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ230-220315- Boston Harbor- 1010 AM EDT Sat Oct 21 2017 .TODAY...SW winds around 5 kt. Waves 1 foot or less. .TONIGHT...SW winds around 5 kt. Waves 1 foot or less. .SUN...SW winds around 5 kt, becoming S around 5 kt in the afternoon. Waves 1 foot or less. .SUN NIGHT...S winds around 5 kt. Waves 1 foot or less. .MON...S winds 5 to 10 kt. Waves 1 foot or less. .MON NIGHT...S winds 5 to 10 kt. Waves 1 foot or less. Areas of fog. Vsby 1 to 3 NM. .TUE...S winds 10 to 15 kt with gusts up to 25 kt. Waves around 2 ft. Areas of fog. A chance of showers. Vsby 1 to 3 NM. .TUE NIGHT...S winds 10 to 15 kt with gusts up to 30 kt. Waves around 2 ft. Areas of fog. Showers with a chance of tstms. Vsby 1 to 3 NM. .WED...S winds 5 to 10 kt with gusts up to 30 kt. Waves around 2 ft. Areas of fog. Showers likely. Vsby 1 to 3 NM. .WED NIGHT...SW winds 5 to 10 kt. Waves 1 foot or less. Areas of fog. A chance of showers. Vsby 1 to 3 NM. Winds and waves higher in and near tstms. 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. $$ ANZ236-220315- Narragansett Bay- 1010 AM EDT Sat Oct 21 2017 .TODAY...NW winds around 5 kt, becoming SW this afternoon. Waves around 2 ft. .TONIGHT...SW winds 5 to 10 kt. Waves around 2 ft. .SUN...SW winds around 5 kt, becoming S in the afternoon. Waves around 2 ft. .SUN NIGHT...S winds around 5 kt. Waves around 2 ft. Areas of fog. Vsby 1 to 3 NM. .MON...S winds 5 to 10 kt. Waves around 2 ft. .MON NIGHT...S winds 5 to 10 kt. Waves around 2 ft. Areas of fog. Vsby 1 to 3 NM. .TUE...S winds 15 to 20 kt with gusts up to 25 kt. Waves 2 to 4 ft. Areas of fog. A chance of showers. Vsby 1 to 3 NM. .TUE NIGHT...S winds 15 to 20 kt with gusts up to 30 kt. Waves 3 to 5 ft. Areas of fog. Showers. Vsby 1 to 3 NM. .WED...S winds 10 to 15 kt with gusts up to 30 kt. Waves 2 to 4 ft, except 4 to 7 ft at the bay entrance. Areas of fog. Showers likely. Vsby 1 to 3 NM. .WED NIGHT...SW winds 5 to 10 kt. Waves 2 to 4 ft. Areas of fog. A chance of showers. Vsby 1 to 3 NM. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ 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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