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 180516 CWFBOX Coastal Waters Forecast National Weather Service Boston/Norton MA 116 AM EDT Tue Jun 18 2019 Coastal waters from the Merrimack River MA to Watch Hill RI out to 25 NM ANZ200-181800- 116 AM EDT Tue Jun 18 2019 .Synopsis for Massachusetts and Rhode Island coastal waters... A frontal boundary S of the waters will remain nearly stationary overnight through Fri. A series of weak low pres waves moving along this boundary will bring rounds of showers from time to time, with embedded heavy downpours and a few tstms. The last wave of low pres exits E of the waters Fri afternoon, afterwhich high pres builds in from the W Fri night and Sat. 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. $$ ANZ250-181800- Coastal waters east of Ipswich Bay and the Stellwagen Bank National Marine Sanctuary- 116 AM EDT Tue Jun 18 2019 .REST OF TONIGHT...SW winds 5 to 10 kt. Seas around 2 ft. .TUE...S winds around 5 kt, becoming SE in the afternoon. Seas around 2 ft. Patchy fog. Vsby 1 NM or less. .TUE NIGHT...SE winds 5 to 10 kt. Seas around 2 ft. Patchy fog. Vsby 1 to 3 NM. .WED...SE winds 5 to 10 kt. Seas 2 to 3 ft. .WED NIGHT...SE winds 5 to 10 kt. Seas 2 to 3 ft. .THU...SE winds 5 to 10 kt. Seas around 2 ft. A chance of showers. .THU NIGHT...SE winds 5 to 10 kt. Seas 2 to 4 ft. Showers with a chance of tstms. .FRI...N winds 5 to 10 kt. Seas 3 to 5 ft. Showers likely. .FRI NIGHT...NW winds 10 to 15 kt. Seas 3 to 5 ft. A chance of showers. .SAT...NW winds 10 to 15 kt. Seas 3 to 5 ft. .SAT NIGHT...NW winds 10 to 15 kt. Seas 2 to 4 ft. Winds and seas higher in and near tstms. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ251-181800- Massachusetts Bay and Ipswich Bay- 116 AM EDT Tue Jun 18 2019 .REST OF TONIGHT...SW winds around 5 kt. Seas around 2 ft. .TUE...SE winds around 5 kt, increasing to 5 to 10 kt in the afternoon. Seas 1 foot or less. Patchy fog. Vsby 1 NM or less. .TUE NIGHT...SE winds 5 to 10 kt, diminishing to around 5 kt after midnight. Seas around 2 ft. Patchy fog. Vsby 1 to 3 NM. .WED...SE winds around 5 kt, increasing to 5 to 10 kt in the afternoon. Seas 2 to 3 ft. .WED NIGHT...SE winds 5 to 10 kt, diminishing to around 5 kt after midnight. Seas 2 to 3 ft. .THU...E winds 5 to 10 kt. Seas 1 foot or less. A chance of showers. .THU NIGHT...SE winds 5 to 10 kt. Seas 2 to 3 ft. Showers with a chance of tstms. .FRI...N winds 5 to 10 kt. Seas 2 to 3 ft. Showers likely. .FRI NIGHT...NW winds 10 to 15 kt. Seas 2 to 3 ft. A chance of showers. .SAT...NW winds 10 to 15 kt. Seas 2 to 3 ft. .SAT NIGHT...NW winds 5 to 10 kt. Seas 2 to 3 ft. 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. $$ ANZ231-181800- Cape Cod Bay- 116 AM EDT Tue Jun 18 2019 .REST OF TONIGHT...S winds around 5 kt. Seas 1 foot or less. .TUE...S winds around 5 kt, increasing to 5 to 10 kt in the afternoon. Seas 1 foot or less. Scattered showers. .TUE NIGHT...SE winds around 5 kt. Seas 1 foot or less. Patchy fog. Vsby 1 to 3 NM. .WED...SE winds 5 to 10 kt. Seas 1 foot or less. .WED NIGHT...SE winds 5 to 10 kt, diminishing to around 5 kt after midnight. Seas 1 foot or less. A chance of showers. Vsby 1 to 3 NM. .THU...SE winds 5 to 10 kt. Seas 1 foot or less. A chance of showers. .THU NIGHT...SE winds 5 to 10 kt. Seas around 2 ft. Showers likely. .FRI...N winds 5 to 10 kt. Seas 2 to 3 ft. Showers likely. .FRI NIGHT...NW winds 10 to 15 kt. Seas 2 to 3 ft. A chance of showers. .SAT...NW winds 10 to 15 kt. Seas 2 to 3 ft. .SAT NIGHT...NW winds 5 to 10 kt. Seas around 2 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ254-181800- Coastal waters from Provincetown MA to Chatham MA to Nantucket MA out 20 nm- 116 AM EDT Tue Jun 18 2019 .REST OF TONIGHT...SW winds around 5 kt. Seas 2 to 3 ft. Patchy fog. Scattered showers. Vsby 1 NM or less. .TUE...S winds 5 to 10 kt. Seas 2 to 3 ft. Patchy fog. Scattered showers. Vsby 1 NM or less. .TUE NIGHT...SE winds 5 to 10 kt. Seas 2 to 3 ft. Patchy fog. Scattered showers. Vsby 1 to 3 NM. .WED...SE winds 5 to 10 kt. Seas 2 to 3 ft. .WED NIGHT...SE winds 5 to 10 kt. Seas 2 to 3 ft. A chance of showers. Vsby 1 to 3 NM. .THU...SE winds 5 to 10 kt. Seas 2 to 3 ft. A chance of showers. .THU NIGHT...S winds 5 to 10 kt. Seas 2 to 4 ft. Showers likely. .FRI...N winds 5 to 10 kt with gusts up to 20 kt. Seas 4 to 6 ft. Showers likely. .FRI NIGHT...NW winds 10 to 15 kt. Seas 4 to 6 ft. A chance of showers. .SAT...NW winds 10 to 15 kt. Seas 4 to 6 ft. .SAT NIGHT...NW winds 10 to 15 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. $$ ANZ255-181800- Coastal Waters extending out to 25 nm South of Marthas Vineyard and Nantucket- 116 AM EDT Tue Jun 18 2019 .REST OF TONIGHT...S winds around 5 kt. Seas around 3 ft. Patchy fog. Scattered showers. Vsby 1 NM or less. .TUE...SE winds around 5 kt, increasing to 5 to 10 kt in the afternoon. Seas around 3 ft. Patchy fog. Widespread showers. Vsby 1 NM or less. .TUE NIGHT...E winds 5 to 10 kt, diminishing to around 5 kt after midnight. Seas 2 to 3 ft. Patchy fog. Numerous showers. Vsby 1 to 3 NM. .WED...E winds around 5 kt, becoming SE in the afternoon. Seas 2 to 3 ft. Patchy fog. A chance of showers. Vsby 1 to 3 NM. .WED NIGHT...SE winds 5 to 10 kt. Seas around 3 ft. A chance of showers. Vsby 1 to 3 NM. .THU...SE winds 5 to 10 kt. Seas around 3 ft. A chance of showers. .THU NIGHT...S winds 5 to 10 kt. Seas 3 to 5 ft. Showers likely. .FRI...NW winds 5 to 10 kt with gusts up to 20 kt. Seas 4 to 6 ft. Showers likely. .FRI NIGHT...NW winds 10 to 15 kt. Seas 4 to 6 ft. A chance of showers. .SAT...NW winds 10 to 15 kt. Seas 4 to 6 ft. .SAT NIGHT...W winds around 10 kt. Seas 3 to 5 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ256-181800- Coastal Waters from Montauk NY to Marthas Vineyard extending out to 20 nm South of Block Island- 116 AM EDT Tue Jun 18 2019 .REST OF TONIGHT...S winds around 5 kt. Seas around 3 ft. Patchy fog. Scattered showers. Vsby 1 NM or less. .TUE...SE winds 5 to 10 kt. Seas 2 to 4 ft. Patchy fog. Widespread showers. Vsby 1 NM or less. .TUE NIGHT...E winds 5 to 10 kt, diminishing to around 5 kt after midnight. Seas 2 to 3 ft. Patchy fog. Numerous showers. Vsby 1 to 3 NM. .WED...E winds around 5 kt, becoming SE in the afternoon. Seas around 3 ft. Patchy fog. A chance of showers. Vsby 1 to 3 NM. .WED NIGHT...SE winds 5 to 10 kt. Seas around 3 ft. A chance of showers. Vsby 1 to 3 NM. .THU...E winds around 5 kt, becoming S in the afternoon. Seas around 3 ft. A chance of showers. .THU NIGHT...S winds 5 to 10 kt. Seas 3 to 5 ft. Showers with a chance of tstms. .FRI...NW winds around 10 kt. Seas 4 to 6 ft. Showers likely. .FRI NIGHT...NW winds 10 to 15 kt. Seas 4 to 6 ft. A chance of showers. .SAT...NW winds 10 to 15 kt. Seas 3 to 5 ft. .SAT NIGHT...NW winds 10 to 15 kt. Seas 3 to 4 ft. 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. $$ ANZ232-181800- Nantucket Sound- 116 AM EDT Tue Jun 18 2019 .REST OF TONIGHT...S winds around 5 kt. Seas 1 foot or less. Patchy fog. Scattered showers. Vsby 1 NM or less. .TUE...S winds around 5 kt, becoming SE in the afternoon. Seas 1 foot or less. Patchy fog. Scattered showers. Vsby 1 NM or less. .TUE NIGHT...E winds 5 to 10 kt. Seas 1 foot or less. Patchy fog. Scattered showers. Vsby 1 to 3 NM. .WED...SE winds 5 to 10 kt. Seas 1 foot or less. Patchy fog. A chance of showers. Vsby 1 to 3 NM. .WED NIGHT...SE winds 5 to 10 kt. Seas 1 foot or less. A chance of showers. Vsby 1 to 3 NM. .THU...SE winds 5 to 10 kt. Seas 1 foot or less. A chance of showers. .THU NIGHT...S winds 5 to 10 kt. Seas 2 to 3 ft. Showers with a chance of tstms. .FRI...N winds 5 to 10 kt with gusts up to 20 kt. Seas 2 to 4 ft. Showers likely. .FRI NIGHT...NW winds 10 to 15 kt. Seas 2 to 3 ft. A chance of showers. .SAT...NW winds 10 to 15 kt. Seas 2 to 3 ft. .SAT NIGHT...W winds around 10 kt. Seas 2 to 3 ft. Winds and seas higher in and near tstms. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ233-181800- Vineyard Sound- 116 AM EDT Tue Jun 18 2019 .REST OF TONIGHT...S winds around 5 kt. Seas around 2 ft. Patchy fog. Isolated showers. Vsby 1 NM or less. .TUE...SE winds around 5 kt. Seas around 2 ft. Patchy fog. Numerous showers. Vsby 1 NM or less. .TUE NIGHT...E winds around 5 kt. Seas 1 foot or less. Patchy fog. Scattered showers. Vsby 1 to 3 NM. .WED...SE winds 5 to 10 kt. Seas 1 foot or less. Patchy fog. A chance of showers. Vsby 1 to 3 NM. .WED NIGHT...SE winds 5 to 10 kt. Seas 1 foot or less. A chance of showers. .THU...E winds around 5 kt, becoming S in the afternoon. Seas 1 foot or less. A chance of showers. .THU NIGHT...S winds 5 to 10 kt. Seas 2 to 3 ft. Showers with a chance of tstms. .FRI...N winds 5 to 10 kt. Seas 2 to 4 ft. Showers likely. .FRI NIGHT...NW winds around 10 kt. Seas 2 to 4 ft. A chance of showers. .SAT...NW winds around 10 kt. Seas 2 to 4 ft. .SAT NIGHT...NW winds around 10 kt. Seas 2 to 3 ft. 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. $$ ANZ234-181800- Buzzards Bay- 116 AM EDT Tue Jun 18 2019 .REST OF TONIGHT...S winds around 5 kt. Seas 1 foot or less. Patchy fog. Isolated showers. Vsby 1 to 3 NM. .TUE...S winds around 5 kt. Seas 1 foot or less. Patchy fog. Scattered showers. Vsby 1 NM or less. .TUE NIGHT...E winds around 5 kt. Seas 1 foot or less. Patchy fog. Scattered showers. Vsby 1 to 3 NM. .WED...E winds around 5 kt, becoming SE in the afternoon. Seas 1 foot or less. Patchy fog. Vsby 1 to 3 NM. .WED NIGHT...SE winds 5 to 10 kt, diminishing to around 5 kt after midnight. Seas 1 foot or less. A chance of showers. .THU...SE winds 5 to 10 kt. Seas 1 foot or less. A chance of showers. .THU NIGHT...S winds 5 to 10 kt. Seas 2 to 3 ft. Showers with a chance of tstms. .FRI...N winds 5 to 10 kt. Seas 2 to 3 ft. Showers likely. .FRI NIGHT...NW winds 5 to 10 kt. Seas 2 to 3 ft. A chance of showers. .SAT...NW winds around 10 kt. Seas 2 to 3 ft. .SAT NIGHT...NW winds 5 to 10 kt. Seas 2 to 3 ft. Winds and seas higher in and near tstms. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ235-181800- Rhode Island Sound- 116 AM EDT Tue Jun 18 2019 .REST OF TONIGHT...S winds around 5 kt. Seas around 3 ft. Patchy fog. Scattered showers. Vsby 1 NM or less. .TUE...SE winds around 5 kt. Seas 2 to 3 ft. Patchy fog. Numerous showers. Vsby 1 NM or less. .TUE NIGHT...E winds around 5 kt. Seas 2 to 3 ft. Patchy fog. Numerous showers. Vsby 1 to 3 NM. .WED...E winds around 5 kt, becoming SE in the afternoon. Seas 2 to 3 ft. Patchy fog. A chance of showers. Vsby 1 to 3 NM. .WED NIGHT...SE winds 5 to 10 kt. Seas 2 to 3 ft. A chance of showers. Vsby 1 to 3 NM. .THU...E winds around 5 kt, becoming S in the afternoon. Seas 2 to 3 ft. A chance of showers. .THU NIGHT...S winds 5 to 10 kt. Seas 3 to 5 ft. Showers with a chance of tstms. .FRI...NW winds 5 to 10 kt. Seas 3 to 5 ft. Showers likely. .FRI NIGHT...NW winds around 10 kt. Seas 3 to 5 ft. A chance of showers. .SAT...NW winds around 10 kt. Seas 3 to 5 ft. .SAT NIGHT...NW winds 5 to 10 kt. Seas 2 to 3 ft. 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. $$ ANZ237-181800- Block Island Sound- 116 AM EDT Tue Jun 18 2019 .REST OF TONIGHT...S winds around 5 kt. Seas 2 to 3 ft. Patchy fog. Scattered showers. Vsby 1 NM or less. .TUE...SE winds around 5 kt. Seas 2 to 4 ft. Patchy fog. Widespread showers. Vsby 1 NM or less. .TUE NIGHT...E winds around 5 kt. Seas 2 to 3 ft. Patchy fog. Numerous showers. Vsby 1 to 3 NM. .WED...E winds around 5 kt, becoming SE in the afternoon. Seas 2 to 3 ft. Patchy fog. A chance of showers. Vsby 1 to 3 NM. .WED NIGHT...SE winds 5 to 10 kt. Seas 2 to 3 ft. A chance of showers. Vsby 1 to 3 NM. .THU...E winds around 5 kt, becoming S in the afternoon. Seas 2 to 3 ft. A chance of showers. .THU NIGHT...S winds 5 to 10 kt. Seas 2 to 4 ft. Showers with a chance of tstms. .FRI...NW winds 5 to 10 kt. Seas 3 to 5 ft. Showers likely. .FRI NIGHT...NW winds 5 to 10 kt. Seas 3 to 5 ft. A chance of showers. .SAT...NW winds around 10 kt. Seas 3 to 5 ft. .SAT NIGHT...NW winds 5 to 10 kt. Seas 2 to 3 ft. Winds and seas higher in and near tstms. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ230-181800- Boston Harbor- 116 AM EDT Tue Jun 18 2019 .REST OF TONIGHT...SW winds around 5 kt. Waves 1 foot or less. .TUE...SE winds around 5 kt. Waves 1 foot or less. Patchy fog. Scattered showers. Vsby 1 to 3 NM. .TUE NIGHT...SE winds around 5 kt. Waves 1 foot or less. Patchy fog. Vsby 1 to 3 NM. .WED...SE winds 5 to 10 kt. Waves 1 foot or less. .WED NIGHT...SE winds 5 to 10 kt. Waves 1 foot or less. .THU...E winds around 5 kt. Waves 1 foot or less. A chance of showers. .THU NIGHT...SE winds around 5 kt. Waves 1 foot or less. Showers with a chance of tstms. .FRI...N winds 5 to 10 kt. Waves 1 foot or less. Showers likely. .FRI NIGHT...NW winds 5 to 10 kt. Waves 1 foot or less. A chance of showers. .SAT...NW winds around 10 kt. Waves 1 foot or less. .SAT NIGHT...NW winds 5 to 10 kt. Waves 1 foot or less. 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. $$ ANZ236-181800- Narragansett Bay- 116 AM EDT Tue Jun 18 2019 .REST OF TONIGHT...S winds around 5 kt. Waves around 2 ft. Patchy fog. Isolated showers. Vsby 1 to 3 NM. .TUE...S winds around 5 kt, becoming SE in the afternoon. Waves around 2 ft. Patchy fog. Scattered showers. Vsby 1 NM or less. .TUE NIGHT...NE winds around 5 kt. Waves around 2 ft. Patchy fog. Scattered showers. Vsby 1 to 3 NM. .WED...E winds around 5 kt, becoming SE in the afternoon. Waves around 2 ft. Patchy fog. Vsby 1 to 3 NM. .WED NIGHT...SE winds 5 to 10 kt, becoming E after midnight. Waves around 2 ft. .THU...E winds around 5 kt, becoming S in the afternoon. Waves around 2 ft. A chance of showers. .THU NIGHT...S winds 5 to 10 kt. Waves 2 to 3 ft. Showers with a chance of tstms. .FRI...N winds 5 to 10 kt. Waves 2 to 3 ft. Showers likely. .FRI NIGHT...NW winds 5 to 10 kt. Waves 2 to 3 ft. A chance of showers. .SAT...NW winds around 10 kt. Waves 2 to 3 ft. .SAT NIGHT...NW winds 5 to 10 kt. Waves 2 to 3 ft. Winds and waves higher in and near tstms. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ For the latest updates...please visit our webpage at www.weather.gov/boston You can follow us on Facebook at www.facebook.com/us.nationalweatherservice.boston.gov 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.