Coastal Waters Forecast
Issued by NWS Boston, MA

Current Version | Previous Version | Text Only | Print | Product List | Glossary Off
Versions: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50
000 FZUS51 KBOX 090616 CWFBOX Coastal Waters Forecast National Weather Service Boston/Norton MA 116 AM EST Sun Dec 9 2018 Coastal waters from the Merrimack River MA to Watch Hill RI out to 25 NM ANZ200-091900- 116 AM EST Sun Dec 9 2018 .Synopsis for Massachusetts and Rhode Island coastal waters... High pres will build over the waters tonight and Sun, then shift east Sun night. Meanwhile, a coastal low will strengthen off the mid Atlc coast and track well southeast of Nantucket Mon. High pres returns over the waters Tue through Thu, with ocean effect snow bands across the eastern waters Tue night and Wed. 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. $$ ANZ250-091900- Coastal waters east of Ipswich Bay and the Stellwagen Bank National Marine Sanctuary- 116 AM EST Sun Dec 9 2018 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 5 AM EST EARLY THIS MORNING... .REST OF TONIGHT...NW winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 4 ft. .SUN...W winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 4 ft. .SUN NIGHT...SW winds 15 to 20 kt, becoming NW 10 to 15 kt after midnight. Gusts up to 25 kt. Seas 2 to 4 ft. .MON...N winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 4 ft. .MON NIGHT...N winds 10 to 15 kt. Gusts up to 25 kt in the evening. Seas 3 to 4 ft. .TUE...N winds 5 to 10 kt. Seas 3 to 5 ft. .TUE NIGHT...N winds 10 to 15 kt. Seas 2 to 4 ft. .WED...N winds 15 to 20 kt with gusts up to 25 kt. Seas 4 to 7 ft. .WED NIGHT...N winds 15 to 20 kt with gusts up to 25 kt. Seas 4 to 7 ft. .THU...W winds 5 to 10 kt. Seas 3 to 5 ft. .THU NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 5 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ251-091900- Massachusetts Bay and Ipswich Bay- 116 AM EST Sun Dec 9 2018 .REST OF TONIGHT...W winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 3 ft. .SUN...W winds 5 to 10 kt, becoming SW 10 to 15 kt in the afternoon. Gusts up to 25 kt. Seas around 2 ft. .SUN NIGHT...SW winds 10 to 15 kt, becoming NW after midnight. Gusts up to 25 kt. Seas around 2 ft. .MON...N winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 3 ft. .MON NIGHT...N winds 10 to 15 kt with gusts up to 20 kt, diminishing to 5 to 10 kt after midnight. Seas 2 to 3 ft. .TUE...NW winds 5 to 10 kt. Seas 2 to 3 ft. .TUE NIGHT...N winds 5 to 10 kt. Seas 2 to 3 ft. .WED...N winds 10 to 15 kt with gusts up to 25 kt. Seas 3 to 5 ft. .WED NIGHT...N winds 10 to 15 kt with gusts up to 25 kt. Seas 4 to 6 ft. .THU...W winds 5 to 10 kt. Seas 2 to 4 ft. .THU NIGHT...SW winds 5 to 10 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. $$ ANZ231-091900- Cape Cod Bay- 116 AM EST Sun Dec 9 2018 .REST OF TONIGHT...NW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. .SUN...W winds 5 to 10 kt with gusts up to 20 kt. Seas around 2 ft. .SUN NIGHT...SW winds 10 to 15 kt, becoming NW 5 to 10 kt after midnight. Gusts up to 20 kt. Seas 1 to 2 ft. .MON...N winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 3 ft. .MON NIGHT...N winds 10 to 15 kt with gusts up to 20 kt, diminishing to 5 to 10 kt after midnight. Seas 2 to 3 ft. .TUE...N winds 5 to 10 kt. Seas 2 to 3 ft. .TUE NIGHT...N winds 5 to 10 kt. Seas 2 to 3 ft. .WED...N winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to 5 ft. .WED NIGHT...N winds 10 to 15 kt with gusts up to 25 kt. Seas 3 to 5 ft. .THU...SE winds 5 to 10 kt. Seas 2 to 4 ft. .THU NIGHT...SW winds 5 to 10 kt with gusts up to 20 kt. Seas 2 to 3 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ254-091900- Coastal waters from Provincetown MA to Chatham MA to Nantucket MA out 20 nm- 116 AM EST Sun Dec 9 2018 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 5 AM EST EARLY THIS MORNING... .REST OF TONIGHT...NW winds 10 to 15 kt with gusts up to 25 kt. Seas 3 to 5 ft. .SUN...W winds 5 to 10 kt with gusts up to 20 kt. Seas 2 to 4 ft. .SUN NIGHT...SW winds 10 to 15 kt, becoming NW after midnight. Gusts up to 25 kt. Seas around 2 ft. .MON...N winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 4 ft. .MON NIGHT...N winds 10 to 15 kt with gusts up to 25 kt, diminishing to 5 to 10 kt after midnight. Seas 3 to 5 ft. .TUE...N winds 5 to 10 kt. Seas 4 to 6 ft. .TUE NIGHT...N winds 5 to 10 kt. Seas 3 to 5 ft. A chance of snow. Vsby 1 to 3 NM. .WED...N winds 15 to 20 kt with gusts up to 25 kt. Seas 4 to 7 ft. A chance of snow. Vsby 1 to 3 NM. .WED NIGHT...N winds 15 to 20 kt with gusts up to 25 kt. Seas 4 to 7 ft. .THU...E winds 5 to 10 kt with gusts up to 20 kt. Seas 4 to 6 ft. .THU NIGHT...SW winds 5 to 10 kt with gusts up to 20 kt. Seas 4 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. $$ ANZ255-091900- Coastal Waters extending out to 25 nm South of Marthas Vineyard and Nantucket- 116 AM EST Sun Dec 9 2018 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 3 AM EST EARLY THIS MORNING... .REST OF TONIGHT...NW winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 4 ft. .SUN...NW winds 5 to 10 kt with gusts up to 20 kt, becoming SW in the afternoon. Seas 2 to 3 ft. .SUN NIGHT...SW winds 5 to 10 kt, becoming NW 10 to 15 kt with gusts up to 20 kt after midnight. Seas around 2 ft. .MON...N winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 4 ft. .MON NIGHT...N winds 10 to 15 kt. Gusts up to 25 kt in the evening. Seas 3 to 5 ft. .TUE...N winds 5 to 10 kt. Seas 4 to 6 ft. .TUE NIGHT...N winds 5 to 10 kt. Seas 3 to 5 ft. .WED...N winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to 5 ft. .WED NIGHT...N winds 15 to 20 kt with gusts up to 25 kt. Seas 4 to 6 ft. .THU...E winds 5 to 10 kt with gusts up to 20 kt. Seas 3 to 5 ft. .THU NIGHT...S winds around 10 kt with gusts up to 20 kt. Seas 3 to 5 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ256-091900- Coastal Waters from Montauk NY to Marthas Vineyard extending out to 20 nm South of Block Island- 116 AM EST Sun Dec 9 2018 .REST OF TONIGHT...NW winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 3 ft. .SUN...NW winds 5 to 10 kt with gusts up to 20 kt, becoming SW in the afternoon. Seas around 2 ft. .SUN NIGHT...W winds 5 to 10 kt, becoming NW 10 to 15 kt with gusts up to 20 kt after midnight. Seas around 2 ft. .MON...N winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 3 ft. .MON NIGHT...N winds 10 to 15 kt. Gusts up to 20 kt in the evening. Seas 3 to 5 ft. .TUE...N winds 5 to 10 kt. Seas 4 to 5 ft. .TUE NIGHT...N winds 5 to 10 kt, increasing to 10 to 15 kt after midnight. Seas 3 to 4 ft. .WED...N winds 10 to 15 kt with gusts up to 25 kt. Seas 3 to 4 ft. .WED NIGHT...NE winds 10 to 15 kt with gusts up to 25 kt. Seas 3 to 5 ft. .THU...E winds 5 to 10 kt. Seas 3 to 5 ft. .THU NIGHT...S winds 10 to 15 kt with gusts up to 20 kt. Seas 3 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. $$ ANZ232-091900- Nantucket Sound- 116 AM EST Sun Dec 9 2018 .REST OF TONIGHT...NW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. .SUN...NW winds 5 to 10 kt with gusts up to 20 kt, becoming SW in the afternoon. Seas around 2 ft. .SUN NIGHT...SW winds 5 to 10 kt, becoming NW after midnight. Gusts up to 20 kt. Seas around 2 ft. .MON...N winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. .MON NIGHT...N winds 10 to 15 kt with gusts up to 20 kt, diminishing to 5 to 10 kt after midnight. Seas 2 to 4 ft. .TUE...N winds 5 to 10 kt. Seas 2 to 4 ft. .TUE NIGHT...N winds 5 to 10 kt. Seas 2 to 3 ft. .WED...N winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 4 ft. .WED NIGHT...N winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 4 ft. .THU...E winds 5 to 10 kt. Seas 2 to 4 ft. .THU NIGHT...S winds 5 to 10 kt with gusts up to 20 kt. Seas 2 to 4 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ233-091900- Vineyard Sound- 116 AM EST Sun Dec 9 2018 .REST OF TONIGHT...NW winds 10 to 15 kt with gusts up to 20 kt. Seas 1 foot or less. .SUN...NW winds 5 to 10 kt, becoming SW in the afternoon. Seas around 2 ft. .SUN NIGHT...SW winds around 10 kt, becoming NW after midnight. Gusts up to 20 kt. Seas around 2 ft. .MON...N winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 3 ft. .MON NIGHT...N winds 5 to 10 kt. Gusts up to 20 kt in the evening. Seas 2 to 3 ft. .TUE...N winds 5 to 10 kt. Seas 2 to 4 ft. .TUE NIGHT...N winds 5 to 10 kt. Seas 2 to 3 ft. .WED...N winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 3 ft. .WED NIGHT...N winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 3 ft. .THU...E winds 5 to 10 kt. Seas around 2 ft. .THU NIGHT...S 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. $$ ANZ234-091900- Buzzards Bay- 116 AM EST Sun Dec 9 2018 .REST OF TONIGHT...NW winds 5 to 10 kt with gusts up to 20 kt. Seas 1 foot or less. .SUN...NW winds 5 to 10 kt, becoming SW in the afternoon. Seas around 2 ft. .SUN NIGHT...W winds 5 to 10 kt with gusts up to 20 kt, becoming NW after midnight. Seas 1 to 2 ft. .MON...N winds 5 to 10 kt with gusts up to 20 kt. Seas 2 to 3 ft. .MON NIGHT...N winds 5 to 10 kt. Gusts up to 20 kt in the evening. Seas 2 to 3 ft. .TUE...N winds 5 to 10 kt. Seas 2 to 3 ft. .TUE NIGHT...N winds 5 to 10 kt. Seas around 2 ft. .WED...N winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft. .WED NIGHT...N winds 10 to 15 kt with gusts up to 25 kt. Seas around 2 ft. .THU...E winds 5 to 10 kt. Seas around 2 ft. .THU NIGHT...S winds 5 to 10 kt. Seas around 2 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ235-091900- Rhode Island Sound- 116 AM EST Sun Dec 9 2018 .REST OF TONIGHT...NW winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft. .SUN...NW winds 5 to 10 kt, becoming SW in the afternoon. Seas 1 to 2 ft. .SUN NIGHT...W winds 5 to 10 kt, becoming NW 10 to 15 kt after midnight. Gusts up to 20 kt. Seas 1 to 2 ft. .MON...N winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 3 ft. .MON NIGHT...N winds 10 to 15 kt with gusts up to 20 kt, diminishing to 5 to 10 kt after midnight. Seas 2 to 4 ft. .TUE...N winds 5 to 10 kt. Seas 2 to 4 ft. .TUE NIGHT...N winds 5 to 10 kt. Seas 2 to 4 ft. .WED...N winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 4 ft. .WED NIGHT...N winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 4 ft. .THU...E winds 5 to 10 kt. Seas 2 to 3 ft. .THU NIGHT...S winds 5 to 10 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. $$ ANZ237-091900- Block Island Sound- 116 AM EST Sun Dec 9 2018 .REST OF TONIGHT...NW winds 5 to 10 kt with gusts up to 20 kt. Seas around 2 ft. .SUN...NW winds 5 to 10 kt, becoming SW in the afternoon. Seas 1 foot or less. .SUN NIGHT...W winds 5 to 10 kt, becoming NW with gusts up to 20 kt after midnight. Seas 1 to 2 ft. .MON...N winds 10 to 15 kt with gusts up to 25 kt. Seas around 2 ft. .MON NIGHT...N winds 5 to 10 kt. Gusts up to 20 kt in the evening. Seas 2 to 4 ft. .TUE...N winds 5 to 10 kt. Seas 3 to 4 ft. .TUE NIGHT...N winds 5 to 10 kt. Seas around 3 ft. .WED...N winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. .WED NIGHT...NE winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. .THU...E winds 5 to 10 kt. Seas 2 to 3 ft. .THU NIGHT...S winds 5 to 10 kt. Seas 2 to 3 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ230-091900- Boston Harbor- 116 AM EST Sun Dec 9 2018 .REST OF TONIGHT...W winds around 10 kt with gusts up to 20 kt. Waves 1 foot or less. .SUN...SW winds 5 to 10 kt. Gusts up to 20 kt in the afternoon. Waves 1 foot or less. .SUN NIGHT...SW winds around 10 kt with gusts up to 20 kt, becoming NW after midnight. Waves around 2 ft. .MON...NW winds around 10 kt. Gusts up to 20 kt in the morning. Waves around 2 ft. .MON NIGHT...NW winds 5 to 10 kt. Waves 1 foot or less. .TUE...NW winds around 5 kt. Waves 1 foot or less. .TUE NIGHT...N winds 5 to 10 kt. Waves 1 foot or less. .WED...N winds around 10 kt with gusts up to 20 kt. Waves around 2 ft. .WED NIGHT...N winds 5 to 10 kt with gusts up to 20 kt. Waves around 2 ft. .THU...W winds 5 to 10 kt. Waves 1 foot or less. .THU NIGHT...SW 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. $$ ANZ236-091900- Narragansett Bay- 116 AM EST Sun Dec 9 2018 .REST OF TONIGHT...NW winds 5 to 10 kt. Waves 1 foot or less. .SUN...NW winds around 5 kt, becoming SW in the afternoon. Waves 1 foot or less. .SUN NIGHT...W winds 5 to 10 kt, becoming NW after midnight. Waves 1 foot or less. .MON...N winds 5 to 10 kt. Gusts up to 20 kt in the morning. Waves around 2 ft. .MON NIGHT...N winds 5 to 10 kt. Waves 2 to 3 ft. .TUE...N winds around 5 kt. Waves 2 to 3 ft. .TUE NIGHT...N winds 5 to 10 kt. Waves around 2 ft. .WED...N winds 5 to 10 kt with gusts up to 20 kt. Waves around 2 ft. .WED NIGHT...N winds 5 to 10 kt with gusts up to 20 kt. Waves around 2 ft. .THU...NE winds around 5 kt. Waves around 2 ft. .THU NIGHT...S winds 5 to 10 kt. Waves around 2 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ 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

USA.gov is the U.S. government's official web portal to all federal, state and local government web resources and services.