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
237 FZUS51 KBOX 201217 CWFBOX Coastal Waters Forecast National Weather Service Taunton MA 717 AM EST Mon Nov 20 2017 COASTAL WATERS FROM THE MERRIMACK RIVER MA TO WATCH HILL RI OUT TO 25 NM ANZ200-210100- 717 AM EST Mon Nov 20 2017 .Synopsis for Massachusetts and Rhode Island coastal waters... Strong 979 mb low pres over eastern Quebec early this morning will continue to provide near WNW gales through today. 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 and Fri. 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. $$ ANZ250-210100- Coastal waters east of Ipswich Bay and the Stellwagen Bank National Marine Sanctuary- 717 AM EST Mon Nov 20 2017 ...GALE WARNING IN EFFECT UNTIL 6 PM EST THIS EVENING... .TODAY...W winds 20 to 25 kt with gusts up to 40 kt. Seas 5 to 8 ft. .TONIGHT...W winds 15 to 20 kt. Gusts up to 35 kt, decreasing to 25 kt after midnight. Seas 4 to 7 ft. .TUE...SW winds 15 to 20 kt with gusts up to 35 kt. Seas 4 to 6 ft. .TUE NIGHT...SW winds 15 to 20 kt. Gusts up to 35 kt, decreasing to 25 kt after midnight. Seas 3 to 5 ft. A chance of showers. .WED...SW winds 10 to 15 kt, becoming NW in the afternoon. Gusts up to 25 kt. Seas 2 to 4 ft. Showers. Vsby 1 to 3 NM. .WED NIGHT...NW winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to 5 ft. A chance of showers. .THU...NW winds 10 to 15 kt. Seas 3 to 5 ft. .THU NIGHT...W winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 5 ft. .FRI...W winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 5 ft. .FRI NIGHT...W winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 5 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ251-210100- Massachusetts Bay and Ipswich Bay- 717 AM EST Mon Nov 20 2017 ...GALE WARNING IN EFFECT UNTIL 6 PM EST THIS EVENING... .TODAY...W winds 20 to 25 kt, diminishing to 15 to 20 kt this afternoon. Gusts up to 40 kt. Seas 3 to 5 ft. .TONIGHT...W winds 15 to 20 kt, becoming SW 10 to 15 kt after midnight. Gusts up to 30 kt. Seas 2 to 4 ft. .TUE...SW winds 10 to 15 kt with gusts up to 30 kt. Seas 2 to 4 ft. .TUE NIGHT...SW winds 10 to 15 kt with gusts up to 30 kt. Seas 2 to 4 ft. .WED...SW winds 5 to 10 kt, becoming NW 10 to 15 kt with gusts up to 20 kt in the afternoon. Seas 2 to 3 ft. Showers. Vsby 1 to 3 NM. .WED NIGHT...NW winds 15 to 20 kt, diminishing to 10 to 15 kt after midnight. Gusts up to 25 kt. Seas 2 to 4 ft. .THU...W winds 5 to 10 kt. Seas 2 to 3 ft. .THU NIGHT...W winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. .FRI...W winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. .FRI NIGHT...W winds 10 to 15 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. $$ ANZ231-210100- Cape Cod Bay- 717 AM EST Mon Nov 20 2017 ...GALE WARNING IN EFFECT UNTIL 6 PM EST THIS EVENING... .TODAY...W winds 20 to 25 kt, diminishing to 15 to 20 kt this afternoon. Gusts up to 35 kt. Seas 3 to 5 ft. .TONIGHT...W winds 15 to 20 kt, diminishing to 10 to 15 kt after midnight. Gusts up to 30 kt. Seas 3 to 5 ft. .TUE...SW winds 10 to 15 kt, increasing to 15 to 20 kt in the afternoon. Gusts up to 30 kt. Seas 3 to 5 ft. .TUE NIGHT...SW winds 15 to 20 kt, diminishing to 10 to 15 kt after midnight. Gusts up to 30 kt. Seas 2 to 4 ft. A chance of showers. .WED...SW winds 10 to 15 kt, becoming NW in the afternoon. Gusts up to 20 kt. Seas 2 to 3 ft. Showers. Vsby 1 to 3 NM. .WED NIGHT...NW winds 15 to 20 kt, diminishing to 10 to 15 kt after midnight. Gusts up to 25 kt. Seas 2 to 4 ft. A chance of showers. .THU...NW winds 10 to 15 kt. Seas 2 to 3 ft. .THU NIGHT...W winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft. .FRI...W winds 10 to 15 kt with gusts up to 20 kt. Seas 1 foot or less. .FRI NIGHT...W winds 5 to 10 kt. Seas 2 to 3 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ254-210100- Coastal waters from Provincetown MA to Chatham MA to Nantucket MA out 20 nm- 717 AM EST Mon Nov 20 2017 ...GALE WARNING IN EFFECT UNTIL 6 PM EST THIS EVENING... .TODAY...W winds 20 to 25 kt, diminishing to 15 to 20 kt this afternoon. Gusts up to 35 kt. Seas 6 to 9 ft. .TONIGHT...W winds 15 to 20 kt. Gusts up to 35 kt, decreasing to 25 kt after midnight. Seas 4 to 7 ft. .TUE...SW winds 10 to 15 kt with 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 3 to 5 ft. A chance of showers. .WED...S winds 15 to 20 kt, becoming NW 10 to 15 kt in the afternoon. Gusts up to 25 kt. Seas 3 to 5 ft. Showers. Vsby 1 to 3 NM. .WED NIGHT...N winds 15 to 20 kt with gusts up to 30 kt. Seas 4 to 7 ft. Showers likely. .THU...NW winds 10 to 15 kt with gusts up to 20 kt. Seas 4 to 6 ft. .THU NIGHT...W winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 5 ft. .FRI...W winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 5 ft. .FRI NIGHT...W 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. $$ ANZ255-210100- Coastal Waters extending out to 25 nm South of Marthas Vineyard and Nantucket- 717 AM EST Mon Nov 20 2017 ...GALE WARNING IN EFFECT UNTIL 6 PM EST THIS EVENING... .TODAY...W winds 20 to 25 kt, diminishing to 15 to 20 kt this afternoon. Gusts up to 35 kt. Seas 7 to 10 ft. A slight chance of showers this morning. .TONIGHT...W winds 15 to 20 kt. Gusts up to 35 kt, decreasing to 25 kt after midnight. Seas 6 to 9 ft. .TUE...SW winds 15 to 20 kt with gusts up to 30 kt. Seas 5 to 8 ft. .TUE NIGHT...SW winds 15 to 20 kt. Gusts up to 35 kt, decreasing to 25 kt after midnight. Seas 5 to 8 ft. A chance of showers. .WED...S winds 10 to 15 kt, becoming NW in the afternoon. Gusts up to 25 kt. Seas 4 to 6 ft. Showers. Vsby 1 to 3 NM. .WED NIGHT...N winds 15 to 20 kt with gusts up to 30 kt. Seas 4 to 6 ft. A chance of showers. .THU...NW winds 10 to 15 kt with gusts up to 20 kt. Seas 4 to 6 ft. .THU NIGHT...W winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 5 ft. .FRI...NW winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 5 ft. .FRI NIGHT...W winds around 10 kt. Seas 3 to 5 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ256-210100- Coastal Waters from Montauk NY to Marthas Vineyard extending out to 20 nm South of Block Island- 717 AM EST Mon Nov 20 2017 ...GALE WARNING IN EFFECT UNTIL 6 PM EST THIS EVENING... .TODAY...W winds 20 to 25 kt, diminishing to 15 to 20 kt this afternoon. Gusts up to 35 kt. Seas 7 to 10 ft. .TONIGHT...W winds 15 to 20 kt. Gusts up to 35 kt, decreasing to 25 kt after midnight. Seas 5 to 8 ft. .TUE...SW winds 15 to 20 kt with 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 5 to 8 ft. A chance of showers. .WED...SW winds 10 to 15 kt, becoming NW 15 to 20 kt in the afternoon. Gusts up to 25 kt. Seas 4 to 6 ft. Showers. .WED NIGHT...N winds 15 to 20 kt with gusts up to 25 kt. Seas 4 to 6 ft. .THU...NW winds 10 to 15 kt with gusts up to 20 kt. Seas 4 to 6 ft. .THU NIGHT...W winds 10 to 15 kt with gusts up to 20 kt. Seas around 5 ft. .FRI...W winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 5 ft. .FRI NIGHT...W 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. $$ ANZ232-210100- Nantucket Sound- 717 AM EST Mon Nov 20 2017 ...GALE WARNING IN EFFECT UNTIL 6 PM EST THIS EVENING... .TODAY...W winds 20 to 25 kt, diminishing to 15 to 20 kt this afternoon. Gusts up to 35 kt. Seas 3 to 5 ft. .TONIGHT...W winds 15 to 20 kt with gusts up to 35 kt, diminishing to 10 to 15 kt with gusts up to 25 kt after midnight. Seas 3 to 5 ft. .TUE...SW winds 15 to 20 kt with gusts up to 30 kt. Seas 3 to 5 ft. .TUE NIGHT...SW winds 15 to 20 kt with gusts up to 30 kt. Seas 3 to 5 ft. A chance of showers. .WED...S winds 10 to 15 kt, becoming NW in the afternoon. Gusts up to 20 kt. Seas 2 to 3 ft. Showers. Vsby 1 to 3 NM. .WED NIGHT...N winds 15 to 20 kt, diminishing to 10 to 15 kt after midnight. Gusts up to 25 kt. Seas 2 to 4 ft. A chance of showers. .THU...NW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. .THU NIGHT...W winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. .FRI...W winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft. .FRI NIGHT...W winds 5 to 10 kt. Seas 2 to 4 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ233-210100- Vineyard Sound- 717 AM EST Mon Nov 20 2017 ...GALE WARNING IN EFFECT UNTIL 6 PM EST THIS EVENING... .TODAY...W winds 15 to 20 kt with gusts up to 35 kt. Seas 3 to 5 ft. .TONIGHT...W winds 15 to 20 kt. Gusts up to 35 kt, decreasing to 25 kt after midnight. Seas 3 to 5 ft. .TUE...SW winds 15 to 20 kt with gusts up to 35 kt. Seas 4 to 7 ft. .TUE NIGHT...SW winds 15 to 20 kt. Gusts up to 35 kt, decreasing to 25 kt after midnight. Seas 4 to 6 ft. A chance of showers. .WED...SW winds 10 to 15 kt, becoming NW in the afternoon. Gusts up to 20 kt. Seas 2 to 3 ft. Showers. .WED NIGHT...N winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 3 ft. A chance of showers. .THU...NW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. .THU NIGHT...W winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft. .FRI...W winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft. .FRI NIGHT...W winds 10 to 15 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. $$ ANZ234-210100- Buzzards Bay- 717 AM EST Mon Nov 20 2017 ...GALE WARNING IN EFFECT UNTIL 6 PM EST THIS EVENING... .TODAY...W winds 15 to 20 kt with gusts up to 30 kt. Seas 3 to 4 ft. .TONIGHT...W winds 15 to 20 kt, diminishing to 10 to 15 kt after midnight. Gusts up to 30 kt. Seas 3 to 5 ft. .TUE...SW winds 15 to 20 kt with gusts up to 30 kt. Seas 3 to 5 ft. .TUE NIGHT...SW winds 15 to 20 kt, diminishing to 10 to 15 kt after midnight. Gusts up to 30 kt. Seas 2 to 4 ft. A chance of showers. .WED...SW winds 5 to 10 kt, becoming NW in the afternoon. Gusts up to 20 kt. Seas 2 to 3 ft. Showers. .WED NIGHT...N winds 10 to 15 kt with gusts up to 25 kt. Seas around 2 ft. .THU...NW winds 5 to 10 kt. Seas around 2 ft. .THU NIGHT...W winds 5 to 10 kt. Seas around 2 ft. .FRI...W winds 5 to 10 kt. Seas around 2 ft. .FRI NIGHT...W winds 5 to 10 kt. Seas 2 to 3 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ235-210100- Rhode Island Sound- 717 AM EST Mon Nov 20 2017 ...GALE WARNING IN EFFECT UNTIL 6 PM EST THIS EVENING... .TODAY...W winds 15 to 20 kt with gusts up to 35 kt. Seas 4 to 7 ft. .TONIGHT...W winds 15 to 20 kt, diminishing to 10 to 15 kt after midnight. Gusts up to 35 kt. Seas 4 to 7 ft. .TUE...SW winds 15 to 20 kt with 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 5 to 8 ft. A chance of showers. .WED...SW winds 10 to 15 kt, becoming NW in the afternoon. Gusts up to 25 kt. Seas 2 to 4 ft. Showers. .WED NIGHT...NW winds 15 to 20 kt, becoming N 10 to 15 kt after midnight. Gusts up to 25 kt. Seas 3 to 5 ft. .THU...NW winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 5 ft. .THU NIGHT...W winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 5 ft. .FRI...W winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 5 ft. .FRI NIGHT...W 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. $$ ANZ237-210100- Block Island Sound- 717 AM EST Mon Nov 20 2017 ...GALE WARNING IN EFFECT UNTIL 6 PM EST THIS EVENING... .TODAY...W winds 15 to 20 kt with gusts up to 30 kt. Seas 4 to 6 ft. .TONIGHT...W winds 15 to 20 kt, diminishing to 10 to 15 kt after midnight. Gusts up to 35 kt. Seas 4 to 6 ft. .TUE...SW winds 15 to 20 kt with gusts up to 35 kt. Seas 4 to 7 ft. .TUE NIGHT...SW winds 15 to 20 kt with gusts up to 35 kt. Seas 4 to 7 ft. A chance of showers. .WED...W winds 10 to 15 kt, becoming NW in the afternoon. Gusts up to 25 kt. Seas 2 to 4 ft. Showers likely. .WED NIGHT...N winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 4 ft. .THU...NW winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 5 ft. .THU NIGHT...W winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. .FRI...W winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. .FRI NIGHT...W winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ230-210100- Boston Harbor- 717 AM EST Mon Nov 20 2017 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 6 PM EST THIS EVENING... .TODAY...W winds 10 to 15 kt with gusts up to 30 kt. Waves around 2 ft. .TONIGHT...W winds 10 to 15 kt with gusts up to 30 kt, becoming SW 5 to 10 kt with gusts up to 20 kt after midnight. Waves around 2 ft. .TUE...SW winds 5 to 10 kt, increasing to 10 to 15 kt in the afternoon. Gusts up to 30 kt. Waves around 2 ft. .TUE NIGHT...SW winds 5 to 10 kt with gusts up to 25 kt. Waves around 2 ft. A chance of showers. .WED...SW winds 5 to 10 kt, becoming NW with gusts up to 20 kt in the afternoon. Waves 1 foot or less. Showers. .WED NIGHT...NW winds 10 to 15 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. .FRI...W winds 5 to 10 kt. Waves 1 foot or less. .FRI 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. $$ ANZ236-210100- Narragansett Bay- 717 AM EST Mon Nov 20 2017 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 6 PM EST THIS EVENING... .TODAY...W winds 10 to 15 kt with gusts up to 30 kt. Waves 2 to 3 ft. .TONIGHT...W winds 10 to 15 kt, becoming SW 5 to 10 kt after midnight. Gusts up to 30 kt. Waves 2 to 4 ft. .TUE...SW winds 10 to 15 kt with gusts up to 30 kt. Waves 3 to 5 ft. .TUE NIGHT...SW winds 10 to 15 kt with gusts up to 30 kt. Waves 3 to 5 ft. A chance of showers. .WED...SW winds 5 to 10 kt, becoming NW in the afternoon. Gusts up to 20 kt. Waves 2 to 3 ft. Showers. .WED NIGHT...NW winds 10 to 15 kt, becoming N 5 to 10 kt after midnight. Gusts up to 25 kt. Waves 2 to 3 ft. .THU...NW winds 5 to 10 kt. Waves 2 to 3 ft. .THU NIGHT...W winds 5 to 10 kt. Waves 2 to 3 ft. .FRI...W winds 5 to 10 kt. Waves 2 to 3 ft. .FRI NIGHT...W winds 5 to 10 kt. Waves around 2 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ 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.