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
998 FZUS51 KBOX 170202 CWFBOX Coastal Waters Forecast National Weather Service Boston/Norton MA 1002 PM EDT Sun Sep 16 2018 Coastal waters from the Merrimack River MA to Watch Hill RI out to 25 NM ANZ200-171515- 1002 PM EDT Sun Sep 16 2018 .Synopsis for Massachusetts and Rhode Island coastal waters... Large high pres will continue to move slowly east of the waters through Mon. The remnants of Florence will track across the waters Tue into Tue evening. High pres will build over the waters Wed and Thu. 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. $$ ANZ250-171515- Coastal waters east of Ipswich Bay and the Stellwagen Bank National Marine Sanctuary- 1002 PM EDT Sun Sep 16 2018 .OVERNIGHT...S winds 5 to 10 kt. Seas 2 to 4 ft. .MON...SW winds 5 to 10 kt, becoming S 10 to 15 kt with gusts up to 20 kt in the afternoon. Seas 3 to 5 ft. .MON NIGHT...SW winds 10 to 15 kt with gusts up to 25 kt. Seas 3 to 5 ft. Patchy fog. Showers likely. .TUE...S winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 4 ft. Patchy fog. Showers. Vsby 1 to 3 NM. .TUE NIGHT...W winds 5 to 10 kt, becoming N 15 to 20 kt after midnight. Gusts up to 30 kt. Seas 4 to 6 ft. Showers likely. Vsby 1 to 3 NM. .WED...NE winds 15 to 20 kt. Gusts up to 30 kt in the morning. Seas 5 to 8 ft. .WED NIGHT...NE winds 10 to 15 kt. Gusts up to 20 kt in the evening. Seas 4 to 7 ft. .THU...NE winds 10 to 15 kt. Seas 4 to 6 ft. .THU NIGHT...SE winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 5 ft. .FRI...SW winds 15 to 20 kt with gusts up to 30 kt. Seas 4 to 6 ft. .FRI NIGHT...W winds 15 to 20 kt with gusts up to 30 kt. Seas 4 to 6 ft. A chance of showers. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ251-171515- Massachusetts Bay and Ipswich Bay- 1002 PM EDT Sun Sep 16 2018 .OVERNIGHT...S winds 5 to 10 kt. Seas 2 to 4 ft. .MON...S winds 5 to 10 kt. Seas 2 to 4 ft. .MON NIGHT...SW winds 5 to 10 kt with gusts up to 20 kt. Seas 2 to 4 ft. Patchy fog. Showers likely. .TUE...S winds 5 to 10 kt with gusts up to 25 kt. Seas 2 to 3 ft. Patchy fog. Showers. Vsby 1 to 3 NM. .TUE NIGHT...NW winds 5 to 10 kt, becoming N 15 to 20 kt after midnight. Gusts up to 30 kt. Seas 2 to 4 ft. A chance of showers. Vsby 1 to 3 NM. .WED...N winds 10 to 15 kt with gusts up to 25 kt. Seas 3 to 5 ft. .WED NIGHT...NE winds 5 to 10 kt. Seas 3 to 5 ft. .THU...NE winds 5 to 10 kt. Seas 2 to 4 ft. .THU NIGHT...SE winds 10 to 15 kt. Seas 2 to 4 ft. .FRI...SW winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 4 ft. A chance of showers. .FRI NIGHT...W winds 10 to 15 kt with gusts up to 20 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. $$ ANZ231-171515- Cape Cod Bay- 1002 PM EDT Sun Sep 16 2018 .OVERNIGHT...S winds around 5 kt. Seas 1 foot or less. .MON...SW winds 5 to 10 kt. Gusts up to 20 kt in the afternoon. Seas around 2 ft. .MON NIGHT...SW winds 5 to 10 kt with gusts up to 20 kt. Seas around 2 ft. Patchy fog. Showers likely. .TUE...S winds 5 to 10 kt, becoming SW 10 to 15 kt in the afternoon. Gusts up to 30 kt. Seas 2 to 4 ft. Patchy fog. Showers. Vsby 1 to 3 NM. .TUE NIGHT...W winds 5 to 10 kt, becoming N 10 to 15 kt after midnight. Gusts up to 30 kt. Seas 2 to 4 ft. Showers likely. Vsby 1 to 3 NM. .WED...N winds 10 to 15 kt. Gusts up to 30 kt, decreasing to 20 kt in the afternoon. Seas 3 to 5 ft. .WED NIGHT...NE winds 10 to 15 kt. Seas 2 to 4 ft. .THU...NE winds 5 to 10 kt. Seas 2 to 3 ft. .THU NIGHT...SE winds 5 to 10 kt. Seas 2 to 3 ft. .FRI...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 4 ft. .FRI NIGHT...W winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 4 ft. A chance of showers. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ254-171515- Coastal waters from Provincetown MA to Chatham MA to Nantucket MA out 20 nm- 1002 PM EDT Sun Sep 16 2018 .OVERNIGHT...S winds 5 to 10 kt. Seas 2 to 4 ft. .MON...S winds 5 to 10 kt. Gusts up to 20 kt in the afternoon. Seas 2 to 4 ft. .MON NIGHT...SW winds 10 to 15 kt with gusts up to 25 kt. Seas 3 to 5 ft. A chance of showers. .TUE...S winds 10 to 15 kt with gusts up to 30 kt. Seas 2 to 4 ft. Showers likely. Vsby 1 to 3 NM. .TUE NIGHT...SW winds 10 to 15 kt, becoming NW after midnight. Gusts up to 30 kt. Seas 4 to 6 ft. A chance of showers. Vsby 1 to 3 NM. .WED...N winds 15 to 20 kt with gusts up to 30 kt. Seas 5 to 8 ft. .WED NIGHT...NE winds 10 to 15 kt with gusts up to 20 kt. Seas 5 to 8 ft. .THU...NE winds 10 to 15 kt with gusts up to 20 kt. Seas 4 to 7 ft. .THU NIGHT...SE winds 5 to 10 kt. Seas 4 to 6 ft. .FRI...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 4 to 6 ft. .FRI NIGHT...W winds 15 to 20 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. $$ ANZ255-171515- Coastal Waters extending out to 25 nm South of Marthas Vineyard and Nantucket- 1002 PM EDT Sun Sep 16 2018 .OVERNIGHT...S winds around 5 kt. Seas 2 to 4 ft. .MON...S winds 5 to 10 kt. Seas 2 to 4 ft. .MON NIGHT...S winds 5 to 10 kt. Seas 2 to 4 ft. A chance of showers. Vsby 1 to 3 NM. .TUE...S winds 10 to 15 kt with gusts up to 30 kt. Seas 3 to 5 ft. Showers likely. .TUE NIGHT...SW winds 10 to 15 kt, becoming NW after midnight. Gusts up to 30 kt. Seas 4 to 6 ft. Showers likely. Vsby 1 to 3 NM. .WED...N winds 15 to 20 kt with gusts up to 25 kt. Seas 4 to 7 ft. .WED NIGHT...NE winds around 15 kt with gusts up to 20 kt. Seas 4 to 7 ft. .THU...NE winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 5 ft. .THU NIGHT...SE winds around 10 kt. Seas 2 to 4 ft. .FRI...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to 5 ft. .FRI NIGHT...SW winds around 15 kt with gusts up to 25 kt. Seas 4 to 7 ft. A chance of showers. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ256-171515- Coastal Waters from Montauk NY to Marthas Vineyard extending out to 20 nm South of Block Island- 1002 PM EDT Sun Sep 16 2018 .OVERNIGHT...S winds around 5 kt. Seas around 3 ft. .MON...S winds 5 to 10 kt. Seas around 3 ft. .MON NIGHT...S winds 5 to 10 kt. Gusts up to 20 kt after midnight. Seas 2 to 4 ft. A chance of showers. Vsby 1 to 3 NM. .TUE...S winds 10 to 15 kt with gusts up to 30 kt. Seas 3 to 5 ft. Showers likely. .TUE NIGHT...SW winds 10 to 15 kt, becoming NW after midnight. Gusts up to 30 kt. Seas 4 to 6 ft. Showers likely. Vsby 1 to 3 NM. .WED...N winds 15 to 20 kt with gusts up to 30 kt, becoming NE 10 to 15 kt with gusts up to 20 kt in the afternoon. Seas 4 to 6 ft. .WED NIGHT...NE winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 5 ft. .THU...NE winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. .THU NIGHT...SE winds around 10 kt. Seas 2 to 4 ft. .FRI...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to 5 ft. .FRI NIGHT...W winds 15 to 20 kt with gusts up to 25 kt. Seas 5 to 8 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. $$ ANZ232-171515- Nantucket Sound- 1002 PM EDT Sun Sep 16 2018 .OVERNIGHT...S winds around 5 kt. Seas 1 foot or less. .MON...SW winds 5 to 10 kt. Gusts up to 20 kt in the afternoon. Seas around 2 ft. .MON NIGHT...SW winds 5 to 10 kt with gusts up to 20 kt. Seas 2 to 3 ft. Patchy fog. A chance of showers. Vsby 1 to 3 NM. .TUE...S winds 10 to 15 kt with gusts up to 30 kt. Seas 2 to 3 ft. Patchy fog. Showers likely. Vsby 1 to 3 NM. .TUE NIGHT...SW winds 10 to 15 kt, becoming NW 5 to 10 kt after midnight. Gusts up to 30 kt. Seas 2 to 4 ft. Showers likely. Vsby 1 to 3 NM. .WED...N winds 10 to 15 kt with gusts up to 30 kt. Seas 2 to 4 ft. .WED NIGHT...NE winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. .THU...NE winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. .THU NIGHT...SE winds 5 to 10 kt. Seas 2 to 3 ft. .FRI...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 4 ft. .FRI NIGHT...W winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 4 ft. A chance of showers. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ233-171515- Vineyard Sound- 1002 PM EDT Sun Sep 16 2018 .OVERNIGHT...S winds around 5 kt. Seas 1 foot or less. .MON...SW winds 5 to 10 kt. Seas around 2 ft. .MON NIGHT...SW winds 5 to 10 kt. Seas around 2 ft. Patchy fog. A chance of showers. Vsby 1 to 3 NM. .TUE...S winds 10 to 15 kt with gusts up to 30 kt. Seas 2 to 4 ft. Patchy fog. Showers likely. Vsby 1 to 3 NM. .TUE NIGHT...SW winds 10 to 15 kt, becoming NW after midnight. Gusts up to 30 kt. Seas 3 to 5 ft. Showers likely. Vsby 1 to 3 NM. .WED...N winds 10 to 15 kt. Gusts up to 30 kt, decreasing to 20 kt in the afternoon. Seas 2 to 4 ft. .WED NIGHT...NE winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft. .THU...NE winds around 10 kt. Seas around 2 ft. .THU NIGHT...SE winds around 10 kt. Seas around 2 ft. .FRI...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 4 ft. .FRI NIGHT...W winds 10 to 15 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. $$ ANZ234-171515- Buzzards Bay- 1002 PM EDT Sun Sep 16 2018 .OVERNIGHT...S winds around 5 kt. Seas 1 foot or less. .MON...SW winds 5 to 10 kt. Seas 1 foot or less. .MON NIGHT...SW winds 5 to 10 kt. Seas 1 foot or less. Patchy fog. Showers likely. Vsby 1 to 3 NM. .TUE...SW winds 10 to 15 kt with gusts up to 30 kt. Seas 2 to 4 ft. Patchy fog. Showers. Vsby 1 to 3 NM. .TUE NIGHT...SW winds 5 to 10 kt, becoming NW after midnight. Gusts up to 30 kt. Seas 2 to 4 ft. Showers likely. Vsby 1 to 3 NM. .WED...N winds 10 to 15 kt. Gusts up to 30 kt, decreasing to 20 kt in the afternoon. Seas 2 to 4 ft. .WED NIGHT...NE winds 10 to 15 kt. Gusts up to 20 kt in the evening. Seas around 2 ft. .THU...NE winds 5 to 10 kt. Seas 1 foot or less. .THU NIGHT...SE winds 5 to 10 kt. Seas 1 foot or less. .FRI...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 4 ft. .FRI NIGHT...W winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 4 ft. A chance of showers. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ235-171515- Rhode Island Sound- 1002 PM EDT Sun Sep 16 2018 .OVERNIGHT...S winds around 5 kt. Seas 2 to 3 ft. .MON...SW winds 5 to 10 kt. Seas 2 to 3 ft. .MON NIGHT...S winds 5 to 10 kt. Gusts up to 20 kt after midnight. Seas 2 to 3 ft. Patchy fog. A chance of showers. Vsby 1 to 3 NM. .TUE...S winds 15 to 20 kt, becoming SW 10 to 15 kt in the afternoon. Gusts up to 30 kt. Seas 3 to 5 ft. Patchy fog. Showers likely. .TUE NIGHT...SW winds 10 to 15 kt, becoming NW after midnight. Gusts up to 30 kt. Seas 3 to 5 ft. Showers likely. Vsby 1 to 3 NM. .WED...N winds 10 to 15 kt. Gusts up to 30 kt, decreasing to 20 kt in the afternoon. Seas 2 to 4 ft. .WED NIGHT...NE winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. .THU...NE winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft. .THU NIGHT...SE winds around 10 kt. Seas around 2 ft. .FRI...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to 5 ft. .FRI NIGHT...W winds 15 to 20 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. $$ ANZ237-171515- Block Island Sound- 1002 PM EDT Sun Sep 16 2018 .OVERNIGHT...S winds around 5 kt. Seas 2 to 3 ft. .MON...S winds 5 to 10 kt. Seas 2 to 3 ft. .MON NIGHT...S winds 5 to 10 kt. Gusts up to 20 kt after midnight. Seas 2 to 3 ft. Patchy fog. Showers likely. .TUE...S winds 10 to 15 kt with gusts up to 30 kt. Seas 3 to 5 ft. Patchy fog. Showers likely. Vsby 1 to 3 NM. .TUE NIGHT...W winds 5 to 10 kt, becoming N after midnight. Gusts up to 30 kt. Seas 3 to 5 ft. Showers likely. Vsby 1 to 3 NM. .WED...N winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 4 ft. .WED NIGHT...NE winds around 10 kt. Seas 2 to 3 ft. .THU...E winds 5 to 10 kt. Seas around 2 ft. .THU NIGHT...SE winds around 10 kt. Seas 2 to 3 ft. .FRI...SW winds 10 to 15 kt with gusts up to 25 kt. Seas 3 to 5 ft. .FRI NIGHT...W winds 10 to 15 kt with gusts up to 25 kt. Seas 3 to 5 ft. A chance of showers. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ230-171515- Boston Harbor- 1002 PM EDT Sun Sep 16 2018 .OVERNIGHT...S winds around 5 kt. Waves 1 foot or less. .MON...SW winds 5 to 10 kt. Waves around 2 ft. .MON NIGHT...SW winds 5 to 10 kt with gusts up to 20 kt. Waves around 2 ft. Patchy fog. Showers. .TUE...S winds around 5 kt with gusts up to 20 kt. Waves 1 foot or less. Patchy fog. Showers. Vsby 1 to 3 NM. .TUE NIGHT...NW winds 5 to 10 kt, becoming N after midnight. Gusts up to 25 kt. Waves around 2 ft. Showers likely. Vsby 1 to 3 NM. .WED...N winds 5 to 10 kt. Gusts up to 20 kt in the morning. Waves around 2 ft. .WED NIGHT...NE winds around 5 kt. Waves 1 foot or less. .THU...NE winds around 5 kt. Waves 1 foot or less. .THU NIGHT...SE winds 5 to 10 kt. Waves 1 foot or less. .FRI...SW winds 10 to 15 kt with gusts up to 25 kt. Waves around 2 ft. A chance of showers. .FRI NIGHT...W winds 5 to 10 kt with gusts up to 20 kt. Waves 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. $$ ANZ236-171515- Narragansett Bay- 1002 PM EDT Sun Sep 16 2018 .OVERNIGHT...S winds around 5 kt. Waves around 2 ft. .MON...SW winds 5 to 10 kt. Gusts up to 20 kt in the afternoon. Waves around 2 ft. .MON NIGHT...S winds 5 to 10 kt. Waves around 2 ft. Patchy fog. Showers likely. .TUE...S winds 5 to 10 kt with gusts up to 20 kt, becoming SW 10 to 15 kt with gusts up to 30 kt in the afternoon. Waves 2 to 3 ft. Patchy fog. Showers likely. Vsby 1 to 3 NM. .TUE NIGHT...W winds 5 to 10 kt, becoming N after midnight. Gusts up to 30 kt. Waves 2 to 3 ft. Showers likely. Vsby 1 to 3 NM. .WED...N winds around 10 kt with gusts up to 25 kt. Waves around 2 ft. .WED NIGHT...NE winds 5 to 10 kt. Waves around 2 ft. .THU...E winds 5 to 10 kt. Waves 1 foot or less. .THU NIGHT...SE winds 5 to 10 kt. Waves around 2 ft. .FRI...SW winds 10 to 15 kt with gusts up to 20 kt. Waves 2 to 3 ft. .FRI NIGHT...W winds 10 to 15 kt with gusts up to 20 kt. Waves 2 to 3 ft. A chance of showers. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ 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.