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
765 FZUS51 KBOX 191455 CWFBOX Coastal Waters Forecast National Weather Service Taunton MA 955 AM EST Sun Nov 19 2017 COASTAL WATERS FROM THE MERRIMACK RIVER MA TO WATCH HILL RI OUT TO 25 NM ANZ200-200315- 955 AM EST Sun Nov 19 2017 .Synopsis for Massachusetts and Rhode Island coastal waters... Strong low pres will continue to intensify as it tracks across northern New England this afternoon. Its attending cold front sweeps across the waters late this morning into early afternoon. S to SW gales ahead of the front and W to NW gales behind the front this afternoon into Monday. High pres then builds across the waters Tue followed by another cold front moving across New England Wed. High pressure then builds over the waters 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. $$ ANZ250-200315- Coastal waters east of Ipswich Bay and the Stellwagen Bank National Marine Sanctuary- 955 AM EST Sun Nov 19 2017 ...GALE WARNING IN EFFECT THROUGH LATE TONIGHT... .THIS AFTERNOON...SW winds 20 to 25 kt with gusts up to 30 kt, becoming W 25 to 30 kt with gusts up to 40 kt. Seas 6 to 9 ft. Showers early, then a slight chance of showers. Vsby 1 to 3 NM early. .TONIGHT...W winds 25 to 30 kt, diminishing to 20 to 25 kt after midnight. Seas 6 to 9 ft. .MON...W winds 20 to 25 kt with gusts up to 35 kt. Seas 5 to 8 ft. .MON NIGHT...W winds 20 to 25 kt, diminishing to 15 to 20 kt after midnight. Gusts up to 35 kt. Seas 3 to 5 ft. .TUE...SW winds 15 to 20 kt with gusts up to 30 kt. Seas 3 to 5 ft. .TUE NIGHT...SW winds 15 to 20 kt with gusts up to 30 kt. Seas 2 to 4 ft. A chance of showers. .WED...W winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. A chance of showers. .WED NIGHT...N winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 5 ft. .THU...NW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. .THU NIGHT...W winds 10 to 15 kt. Seas 2 to 4 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ251-200315- Massachusetts Bay and Ipswich Bay- 955 AM EST Sun Nov 19 2017 ...GALE WARNING IN EFFECT THROUGH LATE TONIGHT... .THIS AFTERNOON...SW winds 15 to 20 kt with gusts up to 30 kt, becoming W 25 to 30 kt with gusts up to 40 kt. Seas 3 to 5 ft. Showers early. .TONIGHT...W winds 20 to 25 kt, diminishing to 15 to 20 kt after midnight. Gusts up to 35 kt. Seas 3 to 5 ft. .MON...W winds 20 to 25 kt with gusts up to 35 kt. Seas 2 to 4 ft. .MON NIGHT...W winds 15 to 20 kt, becoming SW 10 to 15 kt after midnight. Gusts up to 30 kt. Seas 2 to 3 ft. .TUE...SW winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 3 ft. .TUE NIGHT...SW winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 3 ft. A chance of showers. .WED...W winds 5 to 10 kt with gusts up to 20 kt. Seas around 2 ft. A chance of showers. .WED NIGHT...N winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft. .THU...NW winds 5 to 10 kt with gusts up to 20 kt. Seas 2 to 3 ft. .THU NIGHT...W 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. $$ ANZ231-200315- Cape Cod Bay- 955 AM EST Sun Nov 19 2017 ...GALE WARNING IN EFFECT THROUGH LATE TONIGHT... .THIS AFTERNOON...SW winds 15 to 20 kt with gusts up to 30 kt, becoming W 20 to 25 kt with gusts up to 40 kt. Seas 4 to 6 ft. Showers early, then a slight chance of showers. Vsby 1 to 3 NM early. .TONIGHT...W winds 20 to 25 kt, diminishing to 15 to 20 kt after midnight. Gusts up to 35 kt. Seas 3 to 5 ft. .MON...W winds 20 to 25 kt, diminishing to 15 to 20 kt in the afternoon. Gusts up to 35 kt. Seas 3 to 5 ft. .MON NIGHT...W winds 15 to 20 kt, diminishing to 10 to 15 kt after midnight. Gusts up to 30 kt. Seas 2 to 4 ft. .TUE...SW winds 10 to 15 kt, increasing to 15 to 20 kt in the afternoon. Gusts up to 30 kt. Seas 2 to 4 ft. .TUE NIGHT...SW winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 4 ft. A chance of showers. .WED...NW winds 5 to 10 kt with gusts up to 20 kt. Seas around 2 ft. A chance of showers. .WED NIGHT...N winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. .THU...N winds 5 to 10 kt with gusts up to 20 kt. Seas 2 to 3 ft. .THU NIGHT...W winds 5 to 10 kt. Seas around 2 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ254-200315- Coastal waters from Provincetown MA to Chatham MA to Nantucket MA out 20 nm- 955 AM EST Sun Nov 19 2017 ...GALE WARNING IN EFFECT THROUGH LATE TONIGHT... .THIS AFTERNOON...SW winds 20 to 25 kt. Gusts up to 35 kt, increasing to 45 kt. Seas 7 to 10 ft, except 10 to 15 ft S and E of Nantucket. Showers early, then a chance of showers. Vsby 1 to 3 NM early. .TONIGHT...W winds 20 to 25 kt with gusts up to 35 kt. Seas 6 to 9 ft, except 9 to 14 ft S and E of Nantucket. .MON...W winds 20 to 25 kt with gusts up to 35 kt. Seas 5 to 8 ft. .MON NIGHT...W winds 20 to 25 kt, diminishing to 15 to 20 kt after midnight. Gusts up to 35 kt. Seas 4 to 7 ft. .TUE...SW winds 15 to 20 kt with gusts up to 30 kt. Seas 4 to 6 ft. .TUE NIGHT...SW winds 15 to 20 kt with gusts up to 30 kt. Seas 3 to 5 ft. A chance of showers. .WED...W winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 5 ft. A chance of showers. .WED NIGHT...N winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 5 ft. .THU...N winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 5 ft. .THU NIGHT...NW winds 5 to 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. $$ ANZ255-200315- Coastal Waters extending out to 25 nm South of Marthas Vineyard and Nantucket- 955 AM EST Sun Nov 19 2017 ...GALE WARNING IN EFFECT THROUGH THIS EVENING... .THIS AFTERNOON...SW winds 25 to 30 kt. Gusts up to 35 kt, increasing to 45 kt. Seas 11 to 16 ft. Showers early, then a slight chance of showers. Vsby 1 to 3 NM early. .TONIGHT...W winds 20 to 25 kt, diminishing to 15 to 20 kt after midnight. Gusts up to 35 kt. Seas 9 to 12 ft. .MON...W winds 20 to 25 kt with gusts up to 35 kt. Seas 7 to 10 ft. .MON NIGHT...W winds 20 to 25 kt, diminishing to 15 to 20 kt after midnight. Gusts up to 35 kt. Seas 5 to 8 ft. .TUE...SW winds 15 to 20 kt with gusts up to 30 kt. Seas 4 to 7 ft. .TUE NIGHT...SW winds 15 to 20 kt with gusts up to 30 kt. Seas 4 to 7 ft. A chance of showers. .WED...W winds 10 to 15 kt with gusts up to 20 kt. Seas 4 to 6 ft. A chance of showers. .WED NIGHT...N winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 5 ft. .THU...N winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 5 ft. .THU NIGHT...NW winds 5 to 10 kt. Seas 3 to 5 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ256-200315- Coastal Waters from Montauk NY to Marthas Vineyard extending out to 20 nm South of Block Island- 955 AM EST Sun Nov 19 2017 ...GALE WARNING IN EFFECT THROUGH THIS EVENING... .THIS AFTERNOON...W winds 25 to 30 kt with gusts up to 45 kt. Seas 11 to 16 ft. Showers early with vsby 1 to 3 NM. .TONIGHT...W winds 20 to 25 kt with gusts up to 35 kt. Seas 8 to 13 ft. .MON...W winds 20 to 25 kt with gusts up to 35 kt. Seas 7 to 10 ft. .MON NIGHT...W winds 20 to 25 kt, diminishing to 15 to 20 kt after midnight. Gusts up to 35 kt. Seas 5 to 8 ft. .TUE...SW winds 15 to 20 kt, increasing to 20 to 25 kt in the afternoon. Gusts up to 35 kt. Seas 6 to 9 ft. .TUE NIGHT...SW winds 20 to 25 kt, diminishing to 15 to 20 kt after midnight. Gusts up to 35 kt. Seas 6 to 9 ft. A chance of showers. .WED...NW winds 10 to 15 kt with gusts up to 20 kt. Seas 4 to 7 ft. A chance of showers. .WED NIGHT...N winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. .THU...N winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 5 ft. .THU NIGHT...NW 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. $$ ANZ232-200315- Nantucket Sound- 955 AM EST Sun Nov 19 2017 ...GALE WARNING IN EFFECT THROUGH THIS EVENING... .THIS AFTERNOON...SW winds 20 to 25 kt. Gusts up to 35 kt, increasing to 45 kt. Seas 4 to 6 ft. Showers early, then a slight chance of showers. Vsby 1 to 3 NM early. .TONIGHT...W winds 20 to 25 kt, diminishing to 15 to 20 kt after midnight. Gusts up to 30 kt. Seas 3 to 5 ft. .MON...W winds 20 to 25 kt with gusts up to 35 kt. Seas 3 to 5 ft. .MON NIGHT...W winds 20 to 25 kt, diminishing to 15 to 20 kt after midnight. Gusts up to 30 kt. Seas 2 to 4 ft. .TUE...SW winds 15 to 20 kt with gusts up to 30 kt. Seas 2 to 4 ft. .TUE NIGHT...SW winds 15 to 20 kt with gusts up to 30 kt. Seas 2 to 4 ft. A chance of showers. .WED...W winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. A chance of showers. .WED NIGHT...N winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. .THU...N winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. .THU NIGHT...NW winds 5 to 10 kt. Seas 2 to 3 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ233-200315- Vineyard Sound- 955 AM EST Sun Nov 19 2017 ...GALE WARNING IN EFFECT THROUGH THIS EVENING... .THIS AFTERNOON...W winds 20 to 25 kt with gusts up to 40 kt. Seas 5 to 8 ft. Showers early with vsby 1 to 3 NM. .TONIGHT...W winds 20 to 25 kt with gusts up to 35 kt. Seas 4 to 7 ft. .MON...W winds 20 to 25 kt with gusts up to 35 kt. Seas 3 to 5 ft. .MON NIGHT...W winds 20 to 25 kt, diminishing to around 15 kt after midnight. Gusts up to 30 kt. Seas 2 to 4 ft. .TUE...SW winds 15 to 20 kt with gusts up to 30 kt. Seas 3 to 5 ft. .TUE NIGHT...SW winds 15 to 20 kt with gusts up to 30 kt. Seas 3 to 5 ft. A chance of showers. .WED...NW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. A chance of showers. .WED NIGHT...N winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft. .THU...N winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. .THU NIGHT...NW 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. $$ ANZ234-200315- Buzzards Bay- 955 AM EST Sun Nov 19 2017 ...GALE WARNING IN EFFECT THROUGH THIS EVENING... .THIS AFTERNOON...W winds 20 to 25 kt with gusts up to 40 kt. Seas 4 to 7 ft. Showers early with vsby 1 to 3 NM. .TONIGHT...W winds 15 to 20 kt with gusts up to 30 kt. Seas 3 to 5 ft. .MON...W winds 15 to 20 kt with gusts up to 30 kt. Seas 3 to 4 ft. .MON NIGHT...W winds 15 to 20 kt, diminishing to 10 to 15 kt after midnight. Gusts up to 30 kt. Seas 2 to 4 ft. .TUE...SW winds 15 to 20 kt with gusts up to 30 kt. Seas 2 to 4 ft. .TUE NIGHT...SW winds 15 to 20 kt, diminishing to 10 to 15 kt after midnight. Gusts up to 30 kt. Seas 2 to 4 ft. A chance of showers. .WED...NW winds 5 to 10 kt with gusts up to 20 kt. Seas 2 to 3 ft. A chance of showers. .WED NIGHT...N winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft. .THU...N winds 5 to 10 kt with gusts up to 20 kt. Seas around 2 ft. .THU NIGHT...NW winds 5 to 10 kt. Seas around 2 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ235-200315- Rhode Island Sound- 955 AM EST Sun Nov 19 2017 ...GALE WARNING IN EFFECT THROUGH THIS EVENING... .THIS AFTERNOON...W winds 25 to 30 kt with gusts up to 40 kt. Seas 9 to 14 ft. Showers early with vsby 1 to 3 NM. .TONIGHT...W winds 20 to 25 kt, diminishing to 15 to 20 kt after midnight. Gusts up to 35 kt. Seas 7 to 10 ft. .MON...W winds 20 to 25 kt with gusts up to 35 kt. Seas 5 to 8 ft. .MON NIGHT...W winds 20 to 25 kt, diminishing to 15 to 20 kt after midnight. Gusts up to 35 kt. Seas 4 to 6 ft. .TUE...SW winds 15 to 20 kt, increasing to 20 to 25 kt in the afternoon. Gusts up to 35 kt. Seas 4 to 6 ft. .TUE NIGHT...SW winds 20 to 25 kt, diminishing to 15 to 20 kt after midnight. Gusts up to 35 kt. Seas 4 to 7 ft. A chance of showers. .WED...NW winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 5 ft. A chance of showers. .WED NIGHT...N winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 3 ft. .THU...N winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. .THU NIGHT...NW winds 5 to 10 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. $$ ANZ237-200315- Block Island Sound- 955 AM EST Sun Nov 19 2017 ...GALE WARNING IN EFFECT THROUGH THIS EVENING... .THIS AFTERNOON...W winds 20 to 25 kt with gusts up to 40 kt. Seas 8 to 11 ft. Showers likely early with vsby 1 to 3 NM. .TONIGHT...W winds 20 to 25 kt, diminishing to 15 to 20 kt after midnight. Gusts up to 30 kt. Seas 6 to 9 ft. .MON...W winds 15 to 20 kt with gusts up to 35 kt. Seas 4 to 6 ft. .MON NIGHT...W winds 20 to 25 kt with gusts up to 35 kt, diminishing to 15 to 20 kt with gusts up to 25 kt after midnight. Seas 3 to 5 ft. .TUE...SW winds 15 to 20 kt, increasing to 20 to 25 kt in the afternoon. Gusts up to 35 kt. Seas 4 to 6 ft. .TUE NIGHT...SW winds 15 to 20 kt with gusts up to 30 kt. Seas 4 to 6 ft. A chance of showers. .WED...NW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. A chance of showers. .WED NIGHT...N winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. .THU...N winds 5 to 10 kt with gusts up to 20 kt. Seas 2 to 4 ft. .THU NIGHT...NW winds 5 to 10 kt. Seas 2 to 4 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ230-200315- Boston Harbor- 955 AM EST Sun Nov 19 2017 ...GALE WARNING IN EFFECT THROUGH THIS EVENING... .THIS AFTERNOON...SW winds 15 to 20 kt with gusts up to 30 kt, becoming W 20 to 25 kt with gusts up to 40 kt. Waves around 2 ft. Showers early. .TONIGHT...W winds 15 to 20 kt, diminishing to 10 to 15 kt after midnight. Gusts up to 30 kt. Waves around 2 ft. .MON...W winds 15 to 20 kt with gusts up to 30 kt. Waves around 2 ft. .MON NIGHT...SW winds 10 to 15 kt with gusts up to 25 kt. Waves around 2 ft. .TUE...SW winds 10 to 15 kt with gusts up to 20 kt. Waves around 2 ft. .TUE NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt, diminishing to 5 to 10 kt after midnight. Waves 1 foot or less. A chance of showers. .WED...W winds 5 to 10 kt. Waves 1 foot or less. A chance of showers. .WED NIGHT...N winds 5 to 10 kt. Waves 1 foot or less. .THU...NW winds 5 to 10 kt. Waves 1 foot or less. .THU NIGHT...W 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. $$ ANZ236-200315- Narragansett Bay- 955 AM EST Sun Nov 19 2017 ...GALE WARNING IN EFFECT THROUGH THIS EVENING... .THIS AFTERNOON...SW winds 20 to 25 kt, becoming W 15 to 20 kt. Gusts up to 40 kt. Waves 5 to 8 ft. Showers early with vsby 1 to 3 NM. .TONIGHT...W winds 15 to 20 kt, diminishing to 10 to 15 kt after midnight. Gusts up to 30 kt. Waves 2 to 3 ft, except 4 to 6 ft at the bay entrance. .MON...W winds 15 to 20 kt with gusts up to 30 kt. Waves 2 to 3 ft. .MON NIGHT...W winds 10 to 15 kt with gusts up to 25 kt. Waves 2 to 3 ft. .TUE...SW winds 10 to 15 kt, increasing to 15 to 20 kt in the afternoon. Gusts up to 30 kt. Waves 2 to 4 ft. .TUE NIGHT...SW winds 15 to 20 kt, diminishing to 10 to 15 kt after midnight. Gusts up to 25 kt. Waves 2 to 4 ft. A chance of showers. .WED...NW winds 5 to 10 kt. Waves 2 to 3 ft. A chance of showers. .WED NIGHT...N winds around 10 kt with gusts up to 20 kt. Waves around 2 ft. .THU...N winds 5 to 10 kt. Waves around 2 ft. .THU NIGHT...NW winds 5 to 10 kt. Waves around 2 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ 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.