Coastal Waters Forecast
Issued by NWS Boston, MA

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000 FZUS51 KBOX 211116 CWFBOX Coastal Waters Forecast National Weather Service Taunton MA 716 AM EDT Mon Aug 21 2017 COASTAL WATERS FROM THE MERRIMACK RIVER MA TO WATCH HILL RI OUT TO 25 NM ANZ200-220000- 716 AM EDT Mon Aug 21 2017 .Synopsis for Massachusetts and Rhode Island coastal waters... High pres over the region will move offshore Tue, which will allow a cold front to cross the waters Wed. Large high pres will build E from the Great Lakes 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. $$ ANZ250-220000- Coastal waters east of Ipswich Bay and the Stellwagen Bank National Marine Sanctuary- 716 AM EDT Mon Aug 21 2017 ...SMALL CRAFT ADVISORY IN EFFECT FROM TUESDAY AFTERNOON THROUGH LATE TUESDAY NIGHT... .TODAY...W winds 5 to 10 kt, becoming SW 10 to 15 kt this afternoon. Seas around 2 ft. .TONIGHT...SW winds 10 to 15 kt, diminishing to 5 to 10 kt after midnight. Gusts up to 20 kt. Seas 2 to 3 ft. .TUE...SW winds 10 to 15 kt, becoming S 15 to 20 kt in the afternoon. Gusts up to 25 kt. Seas 2 to 4 ft. Patchy fog. Vsby 1 to 3 NM. .TUE NIGHT...S winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to 5 ft. Patchy fog. Showers likely with a chance of tstms. Some tstms may produce heavy rainfall. Vsby 1 to 3 NM. .WED...SW winds 10 to 15 kt with gusts up to 20 kt, diminishing to 5 to 10 kt in the afternoon. Seas 2 to 4 ft. Showers likely with a chance of tstms. Some tstms may produce heavy rainfall. .WED NIGHT...W winds 5 to 10 kt. Seas 2 to 3 ft. .THU...N winds 5 to 10 kt. Seas around 2 ft. .THU NIGHT...NW winds 5 to 10 kt. Seas 2 to 3 ft. .FRI...NE winds 5 to 10 kt. Seas 2 to 3 ft. .FRI NIGHT...W winds 5 to 10 kt. Seas around 2 ft. Winds and seas higher in and near tstms. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ251-220000- Massachusetts Bay and Ipswich Bay- 716 AM EDT Mon Aug 21 2017 .TODAY...W winds around 5 kt, becoming S this afternoon. Seas 1 foot or less. .TONIGHT...SW winds 5 to 10 kt with gusts up to 20 kt. Seas around 2 ft. .TUE...SW winds 5 to 10 kt, becoming S 15 to 20 kt with gusts up to 25 kt in the afternoon. Seas 2 to 3 ft. .TUE NIGHT...SW winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 4 ft. Showers likely with a chance of tstms. Some tstms may produce heavy rainfall. .WED...SW winds 5 to 10 kt. Seas 1 foot or less. Showers likely with a chance of tstms. Some tstms may produce heavy rainfall. .WED NIGHT...W winds 5 to 10 kt. Seas 1 foot or less. .THU...W winds 5 to 10 kt. Seas 1 foot or less. .THU NIGHT...NW winds 5 to 10 kt. Seas 1 foot or less. .FRI...NE winds 5 to 10 kt. Seas around 2 ft. .FRI NIGHT...W winds around 5 kt. Seas 1 foot or less. 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. $$ ANZ231-220000- Cape Cod Bay- 716 AM EDT Mon Aug 21 2017 ...SMALL CRAFT ADVISORY IN EFFECT FROM TUESDAY AFTERNOON THROUGH LATE TUESDAY NIGHT... .TODAY...W winds around 5 kt, becoming SW 10 to 15 kt with gusts up to 20 kt this afternoon. Seas 1 foot or less. .TONIGHT...SW winds 10 to 15 kt, diminishing to 5 to 10 kt after midnight. Gusts up to 20 kt. Seas around 2 ft. .TUE...SW winds 5 to 10 kt, increasing to 10 to 15 kt in the afternoon. Gusts up to 25 kt. Seas 2 to 4 ft. .TUE NIGHT...SW winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 4 ft. Showers likely with a chance of tstms. Some tstms may produce heavy rainfall. .WED...SW winds 10 to 15 kt, diminishing to 5 to 10 kt in the afternoon. Gusts up to 20 kt. Seas around 2 ft. Showers likely with a chance of tstms. Some tstms may produce heavy rainfall. .WED NIGHT...W winds 5 to 10 kt. Seas 1 foot or less. .THU...N winds 5 to 10 kt. Seas 1 foot or less. .THU NIGHT...NE winds 5 to 10 kt. Seas around 2 ft. .FRI...NE winds 5 to 10 kt. Seas around 2 ft. .FRI NIGHT...N winds around 5 kt. Seas 1 foot or less. Winds and seas higher in and near tstms. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ254-220000- Coastal waters from Provincetown MA to Chatham MA to Nantucket MA out 20 nm- 716 AM EDT Mon Aug 21 2017 ...SMALL CRAFT ADVISORY IN EFFECT FROM TUESDAY AFTERNOON THROUGH LATE TUESDAY NIGHT... .TODAY...W winds around 5 kt, becoming SW this afternoon. Seas around 2 ft. .TONIGHT...SW winds 5 to 10 kt with gusts up to 20 kt. Seas 2 to 3 ft. .TUE...SW winds 10 to 15 kt, increasing to 15 to 20 kt in the afternoon. Gusts up to 25 kt. Seas 3 to 5 ft. Patchy fog. Vsby 1 to 3 NM. .TUE NIGHT...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to 5 ft. Patchy fog. Showers likely with a chance of tstms. Some tstms may produce heavy rainfall. Vsby 1 to 3 NM. .WED...SW winds 10 to 15 kt with gusts up to 25 kt. Seas 3 to 5 ft. Showers likely with a chance of tstms. Some tstms may produce heavy rainfall. .WED NIGHT...SW winds 5 to 10 kt, becoming NW after midnight. Seas 2 to 4 ft. .THU...N winds 5 to 10 kt. Seas 2 to 3 ft. .THU NIGHT...NW winds 5 to 10 kt. Seas around 2 ft. .FRI...N winds 5 to 10 kt. Seas 2 to 3 ft. .FRI NIGHT...N 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. $$ ANZ255-220000- Coastal Waters extending out to 25 nm South of Marthas Vineyard and Nantucket- 716 AM EDT Mon Aug 21 2017 ...SMALL CRAFT ADVISORY IN EFFECT FROM TUESDAY AFTERNOON THROUGH LATE TUESDAY NIGHT... .TODAY...W winds 5 to 10 kt. Gusts up to 20 kt this afternoon. Seas around 2 ft. .TONIGHT...SW winds 5 to 10 kt with gusts up to 20 kt. Seas 2 to 3 ft. .TUE...SW winds 10 to 15 kt, becoming S 15 to 20 kt in the afternoon. Gusts up to 25 kt. Seas 2 to 4 ft. Patchy fog. Vsby 1 to 3 NM. .TUE NIGHT...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 4 to 6 ft. Patchy fog. Showers likely with a chance of tstms. Some tstms may produce heavy rainfall. Vsby 1 to 3 NM. .WED...SW winds 15 to 20 kt, diminishing to 10 to 15 kt in the afternoon. Gusts up to 25 kt. Seas 4 to 6 ft. Showers likely with a chance of tstms. Some tstms may produce heavy rainfall. .WED NIGHT...W winds 5 to 10 kt, becoming NW after midnight. Seas 2 to 4 ft. .THU...NW winds 5 to 10 kt. Seas around 2 ft. .THU NIGHT...W winds 5 to 10 kt. Seas 2 to 3 ft. .FRI...NE winds 5 to 10 kt. Seas 2 to 3 ft. .FRI NIGHT...NE winds 5 to 10 kt. Seas 2 to 3 ft. Winds and seas higher in and near tstms. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ256-220000- Coastal Waters from Montauk NY to Marthas Vineyard extending out to 20 nm South of Block Island- 716 AM EDT Mon Aug 21 2017 ...SMALL CRAFT ADVISORY IN EFFECT FROM TUESDAY AFTERNOON THROUGH LATE TUESDAY NIGHT... .TODAY...W winds around 5 kt, becoming SW 10 to 15 kt this afternoon. Seas 2 to 3 ft. .TONIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Patchy fog. Vsby 1 to 3 NM. .TUE...SW winds 10 to 15 kt, increasing to 15 to 20 kt in the afternoon. Gusts up to 25 kt. Seas 3 to 4 ft. Patchy fog. Vsby 1 to 3 NM. .TUE NIGHT...SW winds 15 to 20 kt with gusts up to 30 kt. Seas 4 to 7 ft. Patchy fog. Showers likely with a chance of tstms. Some tstms may produce heavy rainfall. Vsby 1 to 3 NM. .WED...SW winds 15 to 20 kt, diminishing to 5 to 10 kt in the afternoon. Gusts up to 25 kt. Seas 4 to 7 ft. Showers likely with a chance of tstms. Some tstms may produce heavy rainfall. .WED NIGHT...W winds 5 to 10 kt, becoming NW after midnight. Seas 2 to 4 ft. .THU...W winds 5 to 10 kt. Seas around 2 ft. .THU NIGHT...NW winds 5 to 10 kt. Seas 2 to 3 ft. .FRI...NE winds 5 to 10 kt. Seas 2 to 3 ft. .FRI NIGHT...NE 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. $$ ANZ232-220000- Nantucket Sound- 716 AM EDT Mon Aug 21 2017 ...SMALL CRAFT ADVISORY IN EFFECT FROM TUESDAY AFTERNOON THROUGH LATE TUESDAY NIGHT... .TODAY...W winds around 5 kt, becoming SW 10 to 15 kt with gusts up to 20 kt this afternoon. Seas 1 foot or less. .TONIGHT...SW winds 10 to 15 kt, diminishing to 5 to 10 kt after midnight. Gusts up to 20 kt. Seas around 2 ft. .TUE...SW winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 3 ft. Patchy fog. Vsby 1 to 3 NM. .TUE NIGHT...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 4 ft. Patchy fog. Showers likely with a chance of tstms. Some tstms may produce heavy rainfall. Vsby 1 to 3 NM. .WED...SW winds 10 to 15 kt, diminishing to 5 to 10 kt in the afternoon. Gusts up to 25 kt. Seas 2 to 3 ft. Showers likely with a chance of tstms. Some tstms may produce heavy rainfall. .WED NIGHT...W winds 5 to 10 kt, becoming NW after midnight. Seas around 2 ft. .THU...NW winds 5 to 10 kt. Seas 1 foot or less. .THU NIGHT...W winds 5 to 10 kt. Seas 1 foot or less. .FRI...NE winds 5 to 10 kt. Seas 1 foot or less. .FRI NIGHT...NE winds 5 to 10 kt. Seas 1 foot or less. Winds and seas higher in and near tstms. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ233-220000- Vineyard Sound- 716 AM EDT Mon Aug 21 2017 ...SMALL CRAFT ADVISORY IN EFFECT FROM TUESDAY AFTERNOON THROUGH LATE TUESDAY NIGHT... .TODAY...W winds around 5 kt, becoming SW 10 to 15 kt with gusts up to 20 kt this afternoon. Seas around 2 ft. .TONIGHT...SW winds 10 to 15 kt, diminishing to 5 to 10 kt after midnight. Gusts up to 20 kt. Seas around 2 ft. Patchy fog. .TUE...SW winds 10 to 15 kt, increasing to 15 to 20 kt in the afternoon. Gusts up to 25 kt. Seas 2 to 4 ft. Patchy fog. Vsby 1 to 3 NM. .TUE NIGHT...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 4 ft. Patchy fog. Showers likely with a chance of tstms. Some tstms may produce heavy rainfall. Vsby 1 to 3 NM. .WED...SW winds 10 to 15 kt. Gusts up to 25 kt in the morning. Seas 2 to 4 ft. Showers likely with a chance of tstms. Some tstms may produce heavy rainfall. .WED NIGHT...W winds 5 to 10 kt, becoming NW after midnight. Seas around 2 ft. .THU...W winds 5 to 10 kt. Seas 1 foot or less. .THU NIGHT...W winds 5 to 10 kt. Seas 1 foot or less. .FRI...NE winds 5 to 10 kt. Seas 1 foot or less. .FRI NIGHT...NE winds 5 to 10 kt. Seas 1 foot or less. 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. $$ ANZ234-220000- Buzzards Bay- 716 AM EDT Mon Aug 21 2017 ...SMALL CRAFT ADVISORY IN EFFECT FROM TUESDAY AFTERNOON THROUGH LATE TUESDAY NIGHT... .TODAY...W winds around 5 kt, becoming SW 10 to 15 kt with gusts up to 20 kt this afternoon. Seas around 2 ft. .TONIGHT...SW winds 10 to 15 kt, diminishing to 5 to 10 kt after midnight. Gusts up to 20 kt. Seas around 2 ft. .TUE...SW winds 10 to 15 kt, increasing to 15 to 20 kt in the afternoon. Gusts up to 25 kt. Seas 2 to 4 ft. Patchy fog. Vsby 1 to 3 NM. .TUE NIGHT...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 4 ft. Patchy fog. Showers likely with a chance of tstms. Some tstms may produce heavy rainfall. Vsby 1 to 3 NM. .WED...SW winds 10 to 15 kt, diminishing to 5 to 10 kt in the afternoon. Gusts up to 20 kt. Seas 2 to 3 ft. Showers likely with a chance of tstms. Some tstms may produce heavy rainfall. .WED NIGHT...NW winds 5 to 10 kt. Seas 1 foot or less. .THU...W winds 5 to 10 kt. Seas 1 foot or less. .THU NIGHT...W winds 5 to 10 kt. Seas 1 foot or less. .FRI...NE winds 5 to 10 kt. Seas 1 foot or less. .FRI NIGHT...NE winds around 5 kt. Seas 1 foot or less. Winds and seas higher in and near tstms. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ235-220000- Rhode Island Sound- 716 AM EDT Mon Aug 21 2017 ...SMALL CRAFT ADVISORY IN EFFECT FROM TUESDAY AFTERNOON THROUGH LATE TUESDAY NIGHT... .TODAY...W winds around 5 kt, becoming SW 10 to 15 kt with gusts up to 20 kt this afternoon. Seas 2 to 3 ft. .TONIGHT...SW winds 10 to 15 kt, diminishing to 5 to 10 kt after midnight. Gusts up to 20 kt. Seas 2 to 3 ft. Patchy fog. Vsby 1 to 3 NM. .TUE...SW winds 10 to 15 kt, becoming S 15 to 20 kt in the afternoon. Gusts up to 25 kt. Seas 2 to 4 ft. Patchy fog. Vsby 1 to 3 NM. .TUE NIGHT...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to 5 ft. Patchy fog. Showers likely with a chance of tstms. Some tstms may produce heavy rainfall. Vsby 1 to 3 NM. .WED...SW winds 10 to 15 kt with gusts up to 25 kt, diminishing to 5 to 10 kt in the afternoon. Seas 2 to 4 ft. Showers likely with a chance of tstms. Some tstms may produce heavy rainfall. .WED NIGHT...W winds 5 to 10 kt, becoming NW after midnight. Seas 2 to 3 ft. .THU...W winds 5 to 10 kt. Seas around 2 ft. .THU NIGHT...W winds 5 to 10 kt. Seas around 2 ft. .FRI...NE winds 5 to 10 kt. Seas around 2 ft. .FRI NIGHT...NE winds 5 to 10 kt. Seas around 2 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. $$ ANZ237-220000- Block Island Sound- 716 AM EDT Mon Aug 21 2017 ...SMALL CRAFT ADVISORY IN EFFECT FROM TUESDAY AFTERNOON THROUGH LATE TUESDAY NIGHT... .TODAY...W winds around 5 kt, becoming SW 10 to 15 kt with gusts up to 20 kt this afternoon. Seas around 2 ft. .TONIGHT...SW winds 10 to 15 kt, diminishing to 5 to 10 kt after midnight. Gusts up to 20 kt. Seas 2 to 3 ft. .TUE...SW winds 10 to 15 kt, increasing to 15 to 20 kt in the afternoon. Gusts up to 25 kt. Seas 2 to 4 ft. Patchy fog. Vsby 1 to 3 NM. .TUE NIGHT...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to 5 ft. Patchy fog. Showers likely with a chance of tstms. Some tstms may produce heavy rainfall. Vsby 1 to 3 NM. .WED...SW winds 10 to 15 kt with gusts up to 20 kt, diminishing to 5 to 10 kt in the afternoon. Seas 2 to 4 ft. Showers likely with a chance of tstms. Some tstms may produce heavy rainfall. .WED NIGHT...W winds 5 to 10 kt, becoming NW after midnight. Seas 2 to 3 ft. .THU...W winds 5 to 10 kt. Seas around 2 ft. .THU NIGHT...NW winds 5 to 10 kt. Seas around 2 ft. .FRI...E winds 5 to 10 kt. Seas around 2 ft. .FRI NIGHT...E winds around 5 kt. Seas around 2 ft. Winds and seas higher in and near tstms. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ230-220000- Boston Harbor- 716 AM EDT Mon Aug 21 2017 .TODAY...SW winds 5 to 10 kt. Waves 1 foot or less. .TONIGHT...SW winds 5 to 10 kt. Waves 1 foot or less. .TUE...SW winds 5 to 10 kt, increasing to 10 to 15 kt with gusts up to 20 kt in the afternoon. Waves around 2 ft. .TUE NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Waves around 2 ft. Showers likely with a chance of tstms. Some tstms may produce heavy rainfall. .WED...SW winds 5 to 10 kt. Waves 1 foot or less. Showers likely with a chance of tstms. Some tstms may produce heavy rainfall. .WED NIGHT...W winds around 5 kt. Waves 1 foot or less. .THU...W winds around 5 kt. Waves 1 foot or less. .THU NIGHT...W winds around 5 kt. Waves 1 foot or less. .FRI...NE winds around 5 kt. Waves 1 foot or less. .FRI NIGHT...W winds around 5 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. $$ ANZ236-220000- Narragansett Bay- 716 AM EDT Mon Aug 21 2017 .TODAY...W winds around 5 kt, becoming SW 10 to 15 kt with gusts up to 20 kt this afternoon. Waves around 2 ft. .TONIGHT...SW winds 10 to 15 kt, diminishing to around 5 kt after midnight. Gusts up to 20 kt. Waves around 2 ft. .TUE...SW winds 5 to 10 kt, becoming S 10 to 15 kt in the afternoon. Gusts up to 20 kt. Waves 2 to 3 ft. Patchy fog. Vsby 1 to 3 NM. .TUE NIGHT...SW winds 10 to 15 kt with gusts up to 25 kt. Waves 2 to 3 ft. Showers likely with a chance of tstms. Some tstms may produce heavy rainfall. .WED...SW winds 5 to 10 kt. Waves around 2 ft. Showers likely with a chance of tstms. Some tstms may produce heavy rainfall. .WED NIGHT...NW winds around 5 kt. Waves 1 foot or less. .THU...W winds around 5 kt. Waves 1 foot or less. .THU NIGHT...NW winds around 5 kt. Waves 1 foot or less. .FRI...NE winds around 5 kt. Waves 1 foot or less. .FRI NIGHT...NE winds around 5 kt. Waves 1 foot or less. Winds and waves higher in and near tstms. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ 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

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