Coastal Waters Forecast
Issued by NWS Boston, MA

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000 FZUS51 KBOX 241406 CWFBOX Coastal Waters Forecast National Weather Service Boston/Norton MA 1006 AM EDT Sun Jun 24 2018 Coastal waters from the Merrimack River MA to Watch Hill RI out to 25 NM ANZ200-250315- 1006 AM EDT Sun Jun 24 2018 .Synopsis for Massachusetts and Rhode Island coastal waters... Weak low pressure and a cold front will approach the waters late this afternoon and evening. The front will move offshore Mon. High pres builds into the region Tue and Wed. A warm front will push N of the waters late Wed night, followed by a cold front 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. $$ ANZ250-250315- Coastal waters east of Ipswich Bay and the Stellwagen Bank National Marine Sanctuary- 1006 AM EDT Sun Jun 24 2018 .THIS AFTERNOON...SW winds 5 to 10 kt, becoming S 10 to 15 kt. Seas 2 to 3 ft. .TONIGHT...S winds 10 to 15 kt, becoming W with gusts up to 20 kt after midnight. Seas 2 to 4 ft. Patchy fog. A chance of showers. Vsby 1 to 3 NM. .MON...N winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 4 ft. .MON NIGHT...NE winds 5 to 10 kt with gusts up to 20 kt, becoming NW after midnight. Seas 2 to 4 ft. .TUE...N winds 5 to 10 kt, becoming S with gusts up to 20 kt in the afternoon. Seas 2 to 3 ft. .TUE NIGHT...SW winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 4 ft. .WED...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. .WED NIGHT...S winds 20 to 25 kt. Seas 3 to 5 ft. A chance of showers. .THU...S winds 20 to 25 kt with gusts up to 30 kt. Seas 4 to 7 ft. A chance of showers. .THU NIGHT...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 4 to 7 ft. A chance of showers. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ251-250315- Massachusetts Bay and Ipswich Bay- 1006 AM EDT Sun Jun 24 2018 .THIS AFTERNOON...S winds around 5 kt, becoming SE 10 to 15 kt. Seas 2 to 3 ft. A slight chance of showers. .TONIGHT...S winds 5 to 10 kt, becoming NW with gusts up to 20 kt after midnight. Seas 2 to 3 ft. Patchy fog. A chance of showers. Vsby 1 to 3 NM. .MON...N winds 10 to 15 kt, becoming NE 5 to 10 kt in the afternoon. Gusts up to 25 kt. Seas 2 to 3 ft. A chance of showers. .MON NIGHT...NE winds 5 to 10 kt with gusts up to 20 kt, becoming NW after midnight. Seas 2 to 3 ft. A chance of showers. .TUE...N winds 5 to 10 kt, becoming SE in the afternoon. Seas around 2 ft. .TUE NIGHT...SW winds 5 to 10 kt with gusts up to 20 kt. Seas around 2 ft. .WED...SW winds 10 to 15 kt. Seas 2 to 3 ft. .WED NIGHT...S winds 15 to 20 kt. Seas 2 to 3 ft. A chance of showers. .THU...S winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 4 ft. A chance of showers. .THU NIGHT...SW 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. $$ ANZ231-250315- Cape Cod Bay- 1006 AM EDT Sun Jun 24 2018 .THIS AFTERNOON...SW winds around 5 kt, becoming S 10 to 15 kt. Seas 1 foot or less. .TONIGHT...SW winds 5 to 10 kt. Gusts up to 20 kt after midnight. Seas 1 foot or less. Patchy fog. A chance of showers. Vsby 1 to 3 NM. .MON...N winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 3 ft. .MON NIGHT...N winds 5 to 10 kt. Gusts up to 20 kt in the evening. Seas 2 to 3 ft. .TUE...N winds 5 to 10 kt, becoming E in the afternoon. Seas around 2 ft. .TUE NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft. .WED...SW winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft. .WED NIGHT...S winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 4 ft. A chance of showers. .THU...S winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 4 ft. A chance of showers. .THU NIGHT...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 4 ft. A chance of showers. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ254-250315- Coastal waters from Provincetown MA to Chatham MA to Nantucket MA out 20 nm- 1006 AM EDT Sun Jun 24 2018 .THIS AFTERNOON...SW winds around 5 kt, becoming S 10 to 15 kt. Seas 2 to 4 ft. Patchy fog. Vsby 1 NM or less. .TONIGHT...SW winds 5 to 10 kt. Gusts up to 20 kt after midnight. Seas 2 to 4 ft. Patchy fog. A chance of showers. Vsby 1 NM or less. .MON...N winds 10 to 15 kt with gusts up to 25 kt. Seas 3 to 5 ft. Patchy dense fog. Vsby 1 NM or less. .MON NIGHT...N winds 10 to 15 kt with gusts up to 20 kt, diminishing to 5 to 10 kt after midnight. Seas 3 to 5 ft. .TUE...NW winds 5 to 10 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. .WED...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. .WED NIGHT...S winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to 5 ft. A chance of showers. .THU...S winds 20 to 25 kt with gusts up to 30 kt. Seas 4 to 7 ft. Showers likely. .THU NIGHT...SW 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. $$ ANZ255-250315- Coastal Waters extending out to 25 nm South of Marthas Vineyard and Nantucket- 1006 AM EDT Sun Jun 24 2018 .THIS AFTERNOON...SW winds 5 to 10 kt. Seas 3 to 5 ft. Patchy fog. Vsby 1 to 3 NM, decreasing to 1 NM or less. .TONIGHT...SW winds 5 to 10 kt. Gusts up to 20 kt after midnight. Seas 3 to 5 ft. Patchy fog. A chance of showers. Vsby 1 NM or less. .MON...NW winds 5 to 10 kt, becoming N 10 to 15 kt in the afternoon. Gusts up to 25 kt. Seas 3 to 5 ft. Patchy fog. Vsby 1 NM or less. .MON NIGHT...NE winds 10 to 15 kt with gusts up to 20 kt, becoming N 5 to 10 kt after midnight. Seas 3 to 5 ft. .TUE...NW winds 5 to 10 kt, becoming W in the afternoon. Seas 2 to 4 ft. .TUE NIGHT...SW winds 5 to 10 kt, increasing to 10 to 15 kt after midnight. Gusts up to 20 kt. Seas 2 to 4 ft. .WED...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. .WED NIGHT...S winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to 5 ft. A chance of showers. .THU...S winds 20 to 25 kt. Seas 5 to 8 ft. Showers likely. .THU NIGHT...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 5 to 8 ft. A chance of showers. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ256-250315- Coastal Waters from Montauk NY to Marthas Vineyard extending out to 20 nm South of Block Island- 1006 AM EDT Sun Jun 24 2018 .THIS AFTERNOON...SW winds 5 to 10 kt. Seas around 4 ft. Patchy fog. Vsby 1 to 3 NM, decreasing to 1 NM or less. .TONIGHT...SW winds 5 to 10 kt. Gusts up to 20 kt after midnight. Seas around 4 ft. Patchy fog. A chance of showers. Vsby 1 NM or less. .MON...NW winds 5 to 10 kt, becoming N 10 to 15 kt in the afternoon. Gusts up to 20 kt. Seas 3 to 5 ft. Patchy fog. Vsby 1 NM or less. .MON NIGHT...NE winds 10 to 15 kt with gusts up to 20 kt, becoming N 5 to 10 kt after midnight. Seas 3 to 4 ft. .TUE...NW winds around 5 kt, becoming SW in the afternoon. Seas around 3 ft. .TUE NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 4 ft. .WED...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 4 ft. .WED NIGHT...S winds 15 to 20 kt with gusts up to 25 kt. Seas 4 to 6 ft. A chance of showers. .THU...S winds 20 to 25 kt. Seas 5 to 8 ft. A chance of showers. .THU NIGHT...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 5 to 8 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. $$ ANZ232-250315- Nantucket Sound- 1006 AM EDT Sun Jun 24 2018 .THIS AFTERNOON...SW winds 5 to 10 kt. Seas 2 to 3 ft. Patchy fog with vsby 1 to 3 NM. .TONIGHT...SW winds 5 to 10 kt. Seas 2 to 3 ft. Patchy fog. A chance of showers and tstms. Vsby 1 NM or less. .MON...N winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft. .MON NIGHT...N winds 5 to 10 kt. Gusts up to 20 kt in the evening. Seas 2 to 3 ft. .TUE...NW winds 5 to 10 kt, becoming SW in the afternoon. Seas around 2 ft. .TUE NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft. .WED...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. .WED NIGHT...S winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 3 ft. A chance of showers. .THU...S winds 20 to 25 kt. Seas 3 to 5 ft. Showers likely. .THU NIGHT...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 4 ft. A chance of showers. Winds and seas higher in and near tstms. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ233-250315- Vineyard Sound- 1006 AM EDT Sun Jun 24 2018 .THIS AFTERNOON...SW winds 5 to 10 kt. Seas around 2 ft. .TONIGHT...SW winds 5 to 10 kt. Seas 2 to 3 ft. Patchy fog. Showers likely with a chance of tstms. Vsby 1 NM or less. .MON...N winds 5 to 10 kt, becoming NE 10 to 15 kt with gusts up to 20 kt in the afternoon. Seas 2 to 3 ft. .MON NIGHT...NE winds 10 to 15 kt with gusts up to 20 kt, becoming N around 5 kt after midnight. Seas around 2 ft. .TUE...NW winds around 5 kt, becoming SW in the afternoon. Seas around 2 ft. .TUE NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft. .WED...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. .WED NIGHT...S winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 4 ft. A chance of showers. .THU...S winds around 20 kt with gusts up to 25 kt. Seas 3 to 5 ft. A chance of showers. .THU NIGHT...SW winds 15 to 20 kt. Seas 3 to 5 ft. A chance of showers. 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. $$ ANZ234-250315- Buzzards Bay- 1006 AM EDT Sun Jun 24 2018 .THIS AFTERNOON...SW winds 5 to 10 kt, increasing to 10 to 15 kt. Seas around 2 ft. .TONIGHT...SW winds 5 to 10 kt. Seas around 2 ft. Patchy fog. A chance of showers. Vsby 1 NM or less. .MON...N winds 5 to 10 kt, becoming NE 10 to 15 kt in the afternoon. Gusts up to 20 kt. Seas around 2 ft. A chance of showers. .MON NIGHT...NE winds 5 to 10 kt with gusts up to 20 kt, becoming N after midnight. Seas around 2 ft. .TUE...NW winds around 5 kt, becoming SW in the afternoon. Seas around 2 ft. .TUE NIGHT...SW winds 5 to 10 kt. Gusts up to 20 kt in the evening. Seas around 2 ft. .WED...SW winds 10 to 15 kt with gusts up to 25 kt. Seas around 2 ft. .WED NIGHT...S winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 4 ft. A chance of showers. .THU...S winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 4 ft. A chance of showers. .THU NIGHT...SW winds 15 to 20 kt. Seas 2 to 4 ft. A chance of showers. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ235-250315- Rhode Island Sound- 1006 AM EDT Sun Jun 24 2018 .THIS AFTERNOON...SW winds 5 to 10 kt. Seas 2 to 4 ft. Patchy fog with vsby 1 NM or less. .TONIGHT...SW winds 5 to 10 kt. Seas 2 to 4 ft. Patchy fog. A chance of showers. Vsby 1 NM or less. .MON...NW winds 5 to 10 kt, becoming NE 10 to 15 kt with gusts up to 20 kt in the afternoon. Seas 2 to 4 ft. A chance of showers. .MON NIGHT...NE winds 10 to 15 kt with gusts up to 20 kt, becoming N 5 to 10 kt after midnight. Seas 2 to 4 ft. .TUE...NW winds around 5 kt, becoming SW 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 3 ft. .WED...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. .WED NIGHT...S winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to 5 ft. A chance of showers. .THU...S winds 20 to 25 kt. Seas 4 to 7 ft. A chance of showers. .THU NIGHT...SW winds 15 to 20 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. $$ ANZ237-250315- Block Island Sound- 1006 AM EDT Sun Jun 24 2018 .THIS AFTERNOON...SW winds 5 to 10 kt. Seas 2 to 4 ft. Patchy fog. Vsby 1 NM or less. .TONIGHT...W winds 5 to 10 kt. Seas 2 to 4 ft. Patchy fog. A chance of showers. Vsby 1 NM or less. .MON...N winds 5 to 10 kt. Gusts up to 20 kt in the afternoon. Seas 2 to 4 ft. A chance of showers. .MON NIGHT...E winds 5 to 10 kt with gusts up to 20 kt, becoming N after midnight. Seas 2 to 4 ft. .TUE...NW winds around 5 kt, becoming SW in the afternoon. Seas 2 to 3 ft. .TUE NIGHT...SW winds 10 to 15 kt, diminishing to 5 to 10 kt after midnight. Gusts up to 20 kt. Seas 2 to 3 ft. .WED...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. .WED NIGHT...S winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to 5 ft. Showers likely. .THU...S winds 15 to 20 kt with gusts up to 25 kt. Seas 4 to 6 ft. A chance of showers. .THU NIGHT...SW winds 15 to 20 kt. Seas 4 to 6 ft. A chance of showers. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ230-250315- Boston Harbor- 1006 AM EDT Sun Jun 24 2018 .THIS AFTERNOON...S winds 5 to 10 kt. Waves around 2 ft. A chance of showers with a slight chance of tstms. .TONIGHT...SW winds 5 to 10 kt, becoming NW after midnight. Waves around 2 ft. Patchy fog. Showers likely with a chance of tstms. .MON...N winds 5 to 10 kt with gusts up to 20 kt. Waves around 2 ft. A chance of showers. .MON NIGHT...NE winds around 5 kt, becoming NW after midnight. Waves around 2 ft. A chance of showers. .TUE...N winds around 5 kt, becoming SE in the afternoon. Waves 1 foot or less. .TUE NIGHT...SW winds around 5 kt with gusts up to 20 kt. Waves 1 foot or less. .WED...SW winds 5 to 10 kt with gusts up to 20 kt. Waves around 2 ft. .WED NIGHT...S winds 10 to 15 kt with gusts up to 20 kt. Waves around 2 ft. Showers likely. .THU...S winds 10 to 15 kt with gusts up to 20 kt. Waves around 2 ft. Showers likely. .THU NIGHT...SW winds 5 to 10 kt. Waves around 2 ft. A chance of showers. 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. $$ ANZ236-250315- Narragansett Bay- 1006 AM EDT Sun Jun 24 2018 .THIS AFTERNOON...S winds 5 to 10 kt, increasing to 10 to 15 kt. Waves 2 to 3 ft. Patchy fog with vsby 1 NM or less. .TONIGHT...SW winds 5 to 10 kt, becoming W after midnight. Waves 2 to 3 ft. Patchy fog. A chance of showers. Vsby 1 NM or less. .MON...N winds 5 to 10 kt. Gusts up to 20 kt in the afternoon. Waves around 2 ft. A chance of showers. .MON NIGHT...NE winds 5 to 10 kt, becoming N after midnight. Waves 2 to 3 ft. .TUE...NW winds around 5 kt, becoming SW in the afternoon. Waves around 2 ft. .TUE NIGHT...SW winds 5 to 10 kt. Waves around 2 ft. .WED...SW winds 10 to 15 kt with gusts up to 20 kt. Waves around 2 ft. .WED NIGHT...S winds 10 to 15 kt with gusts up to 20 kt. Waves 2 to 3 ft. Showers likely. .THU...S winds 15 to 20 kt with gusts up to 25 kt. Waves 2 to 4 ft. Showers likely. .THU NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Waves 2 to 4 ft. A chance of showers. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ 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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