Coastal Waters Forecast
Issued by NWS Boston, MA

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000 FZUS51 KBOX 191930 CWFBOX Coastal Waters Forecast National Weather Service Boston/Norton MA 330 PM EDT Thu Jul 19 2018 Coastal waters from the Merrimack River MA to Watch Hill RI out to 25 NM ANZ200-200815- 330 PM EDT Thu Jul 19 2018 .Synopsis for Massachusetts and Rhode Island coastal waters... High pressure shifting East over the weekend with a return of southerly flow into early next week, remaining breezy, ushering N warm, muggy air along with the likelihood of heavy rain and or thunderstorms, especially Saturday night into Sunday. Wet weather chances continue throughout the week. 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. $$ ANZ250-200815- Coastal waters east of Ipswich Bay and the Stellwagen Bank National Marine Sanctuary- 330 PM EDT Thu Jul 19 2018 .TONIGHT...SW winds 5 to 10 kt. Seas 2 to 3 ft. .FRI...SW winds around 5 kt, becoming SE in the afternoon. Seas 2 to 3 ft. .FRI NIGHT...SE winds 5 to 10 kt. Seas 2 to 3 ft. .SAT...E winds 5 to 10 kt. Seas 2 to 3 ft. .SAT NIGHT...E winds 10 to 15 kt. Gusts up to 25 kt after midnight. Seas 2 to 4 ft. Showers. .SUN...SE winds 15 to 20 kt with gusts up to 25 kt. Seas 4 to 6 ft. Showers with possible tstms and drizzle. Some tstms may produce heavy rainfall. Vsby 1 to 3 NM. .SUN NIGHT...S winds 10 to 15 kt with gusts up to 20 kt. Seas 4 to 6 ft. A chance of showers with patchy drizzle. .MON...S winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 5 ft. A chance of showers with patchy drizzle. .MON NIGHT...S winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 5 ft. A chance of showers with patchy drizzle. .TUE...S winds 10 to 15 kt with gusts up to 25 kt. Seas 3 to 5 ft. A chance of showers with patchy drizzle. .TUE NIGHT...SW winds 10 to 15 kt with gusts up to 25 kt. Seas 3 to 5 ft. Winds and seas higher in and near tstms. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ251-200815- Massachusetts Bay and Ipswich Bay- 330 PM EDT Thu Jul 19 2018 .TONIGHT...S winds 5 to 10 kt. Seas around 2 ft. .FRI...SW winds around 5 kt, becoming SE in the afternoon. Seas around 2 ft. .FRI NIGHT...SE winds 5 to 10 kt, diminishing to around 5 kt after midnight. Seas 2 to 3 ft. .SAT...E winds 5 to 10 kt. Seas 2 to 3 ft. .SAT NIGHT...E winds 5 to 10 kt, increasing to 10 to 15 kt with gusts up to 20 kt after midnight. Seas 2 to 3 ft. Showers. .SUN...SE winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 4 ft. Showers with possible tstms and drizzle. Some tstms may produce heavy rainfall. Vsby 1 to 3 NM. .SUN NIGHT...S winds 5 to 10 kt. Gusts up to 20 kt in the evening. Seas 2 to 4 ft. A chance of showers with patchy drizzle. .MON...S winds 5 to 10 kt with gusts up to 20 kt. Seas 2 to 3 ft. A chance of showers with patchy drizzle. .MON NIGHT...S winds 5 to 10 kt with gusts up to 20 kt. Seas 2 to 3 ft. A chance of showers with patchy drizzle. .TUE...S winds 5 to 10 kt with gusts up to 20 kt. Seas 2 to 3 ft. A chance of showers with patchy drizzle. .TUE NIGHT...SW winds 5 to 10 kt with gusts up to 20 kt. Seas 2 to 3 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. $$ ANZ231-200815- Cape Cod Bay- 330 PM EDT Thu Jul 19 2018 .TONIGHT...SE winds around 5 kt, becoming SW around 5 kt after midnight. Seas around 2 ft. .FRI...SW winds around 5 kt, becoming SE in the afternoon. Seas around 2 ft. .FRI NIGHT...SE winds 5 to 10 kt, diminishing to around 5 kt after midnight. Seas around 2 ft. .SAT...E winds 5 to 10 kt. Seas around 2 ft. .SAT NIGHT...E winds 5 to 10 kt, becoming SE 10 to 15 kt with gusts up to 20 kt after midnight. Seas 2 to 3 ft. Showers with a chance of tstms. Some tstms may produce heavy rainfall. Vsby 1 to 3 NM. .SUN...S winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 3 ft. Showers with possible tstms and drizzle. Some tstms may produce heavy rainfall. Vsby 1 to 3 NM. .SUN NIGHT...S winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. A chance of showers with patchy drizzle. .MON...S winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. A chance of showers with patchy drizzle. .MON NIGHT...S winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. A chance of showers with patchy drizzle. .TUE...S winds 10 to 15 kt with gusts up to 25 kt. Seas around 2 ft. A chance of showers with patchy drizzle. .TUE NIGHT...SW winds around 10 kt with gusts up to 20 kt. Seas around 2 ft. Winds and seas higher in and near tstms. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ254-200815- Coastal waters from Provincetown MA to Chatham MA to Nantucket MA out 20 nm- 330 PM EDT Thu Jul 19 2018 .TONIGHT...E winds around 5 kt, becoming SW after midnight. Seas 2 to 4 ft. .FRI...SW winds around 5 kt, becoming SE in the afternoon. Seas 2 to 3 ft. .FRI NIGHT...E winds 5 to 10 kt. Seas 2 to 3 ft. .SAT...E winds 5 to 10 kt. Seas around 3 ft. .SAT NIGHT...E winds 10 to 15 kt with gusts up to 25 kt. Seas 3 to 5 ft. Showers with a chance of tstms. Some tstms may produce heavy rainfall. Vsby 1 to 3 NM. .SUN...SE winds 15 to 20 kt, becoming S 10 to 15 kt in the afternoon. Gusts up to 25 kt. Seas 4 to 7 ft. Showers with possible tstms and drizzle. Some tstms may produce heavy rainfall. Vsby 1 to 3 NM. .SUN NIGHT...S winds 10 to 15 kt with gusts up to 20 kt. Seas 4 to 7 ft. A chance of showers with patchy drizzle. .MON...S winds 10 to 15 kt with gusts up to 20 kt. Seas 4 to 6 ft. A chance of showers with patchy drizzle. .MON NIGHT...S winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 5 ft. Patchy drizzle. .TUE...S winds 10 to 15 kt with gusts up to 25 kt. Seas 3 to 5 ft. Patchy drizzle. .TUE NIGHT...S winds 10 to 15 kt with gusts up to 25 kt. Seas 3 to 5 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. $$ ANZ255-200815- Coastal Waters extending out to 25 nm South of Marthas Vineyard and Nantucket- 330 PM EDT Thu Jul 19 2018 .TONIGHT...SE winds around 5 kt, becoming S after midnight. Seas around 3 ft. .FRI...E winds around 5 kt, becoming SE in the afternoon. Seas 2 to 3 ft. .FRI NIGHT...E winds 5 to 10 kt. Seas 2 to 3 ft. Patchy fog. Vsby 1 to 3 NM. .SAT...E winds 10 to 15 kt. Seas around 3 ft. Patchy fog. Vsby 1 to 3 NM. .SAT NIGHT...E winds 10 to 15 kt, becoming SE 15 to 20 kt after midnight. Gusts up to 25 kt. Seas 3 to 5 ft. Showers with a chance of tstms. Some tstms may produce heavy rainfall. Vsby 1 to 3 NM. .SUN...S winds 15 to 20 kt with gusts up to 25 kt. Seas 5 to 8 ft. Showers with possible tstms and drizzle. Some tstms may produce heavy rainfall. .SUN NIGHT...S winds 10 to 15 kt with gusts up to 25 kt. Seas 5 to 8 ft. A chance of showers with patchy drizzle. .MON...S winds around 15 kt with gusts up to 20 kt. Seas 4 to 7 ft. A chance of showers with patchy drizzle. .MON NIGHT...S winds 10 to 15 kt with gusts up to 20 kt. Seas 4 to 6 ft. A chance of showers with patchy drizzle. .TUE...S winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 5 ft. Patchy drizzle. .TUE NIGHT...S winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 5 ft. Winds and seas higher in and near tstms. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ256-200815- Coastal Waters from Montauk NY to Marthas Vineyard extending out to 20 nm South of Block Island- 330 PM EDT Thu Jul 19 2018 .TONIGHT...S winds around 5 kt. Seas around 3 ft. .FRI...SW winds around 5 kt, becoming SE in the afternoon. Seas 2 to 3 ft. .FRI NIGHT...SE winds 5 to 10 kt. Seas 2 to 3 ft. .SAT...E winds 10 to 15 kt. Gusts up to 20 kt in the afternoon. Seas 3 to 4 ft. .SAT NIGHT...E winds 15 to 20 kt with gusts up to 30 kt. Seas 4 to 7 ft. Showers with a chance of tstms. Some tstms may produce heavy rainfall. Vsby 1 to 3 NM. .SUN...S winds 15 to 20 kt, diminishing to 10 to 15 kt in the afternoon. Gusts up to 30 kt. Seas 6 to 9 ft. A chance of showers with patchy drizzle. .SUN NIGHT...S winds 10 to 15 kt with gusts up to 25 kt. Seas 6 to 8 ft. A chance of showers with patchy drizzle. .MON...S winds 10 to 15 kt with gusts up to 20 kt. Seas 6 to 7 ft. A chance of showers with patchy drizzle. .MON NIGHT...S winds 10 to 15 kt with gusts up to 20 kt. Seas 5 to 7 ft. A chance of showers with patchy drizzle. .TUE...S winds 10 to 15 kt with gusts up to 20 kt. Seas 4 to 6 ft. Patchy drizzle. .TUE NIGHT...S winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 5 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. $$ ANZ232-200815- Nantucket Sound- 330 PM EDT Thu Jul 19 2018 .TONIGHT...SE winds around 5 kt, becoming SW after midnight. Seas 1 to 2 ft. .FRI...SW winds around 5 kt, becoming SE in the afternoon. Seas 1 to 2 ft. .FRI NIGHT...E winds 5 to 10 kt. Seas 1 to 2 ft. .SAT...E winds 5 to 10 kt, increasing to 10 to 15 kt in the afternoon. Seas around 2 ft. .SAT NIGHT...E winds 10 to 15 kt, becoming SE 15 to 20 kt after midnight. Gusts up to 25 kt. Seas 2 to 4 ft. Showers with a chance of tstms. Some tstms may produce heavy rainfall. Vsby 1 to 3 NM. .SUN...SE winds 15 to 20 kt, becoming S 10 to 15 kt in the afternoon. Gusts up to 25 kt. Seas 2 to 4 ft. Showers with possible tstms and drizzle. Some tstms may produce heavy rainfall. Vsby 1 to 3 NM. .SUN NIGHT...S winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. A chance of showers with patchy drizzle. .MON...S winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. A chance of showers with patchy drizzle. .MON NIGHT...S winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. A chance of showers with patchy drizzle. .TUE...S winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Patchy drizzle. .TUE NIGHT...S winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 3 ft. Winds and seas higher in and near tstms. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ233-200815- Vineyard Sound- 330 PM EDT Thu Jul 19 2018 .TONIGHT...S winds around 5 kt. Seas 1 to 2 ft. .FRI...SW winds around 5 kt, becoming SE in the afternoon. Seas around 2 ft. .FRI NIGHT...SE winds 5 to 10 kt. Seas 1 to 2 ft. .SAT...E winds 5 to 10 kt, increasing to 10 to 15 kt in the afternoon. Seas around 2 ft. .SAT NIGHT...E winds 10 to 15 kt, becoming SE 15 to 20 kt after midnight. Gusts up to 25 kt. Seas 2 to 4 ft. Showers with a chance of tstms. Some tstms may produce heavy rainfall. Vsby 1 to 3 NM. .SUN...S winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to 5 ft. Showers with possible tstms and drizzle. Some tstms may produce heavy rainfall. .SUN NIGHT...S winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 5 ft. A chance of showers with patchy drizzle. .MON...S winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. A chance of showers with patchy drizzle. .MON NIGHT...S winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. A chance of showers with patchy drizzle. .TUE...S winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. A chance of showers with patchy drizzle. .TUE NIGHT...S winds around 10 kt with gusts up to 20 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. $$ ANZ234-200815- Buzzards Bay- 330 PM EDT Thu Jul 19 2018 .TONIGHT...S winds around 5 kt. Seas around 2 ft. .FRI...SW winds around 5 kt, becoming S in the afternoon. Seas around 2 ft. .FRI NIGHT...SE winds 5 to 10 kt, becoming E after midnight. Seas around 2 ft. .SAT...E winds 5 to 10 kt. Seas around 2 ft. .SAT NIGHT...E winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 3 ft. Showers with a chance of tstms. Some tstms may produce heavy rainfall. Vsby 1 to 3 NM. .SUN...S winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 4 ft. Showers with possible tstms and drizzle. Some tstms may produce heavy rainfall. .SUN NIGHT...S winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. A chance of showers with patchy drizzle. .MON...S winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. A chance of showers with patchy drizzle. .MON NIGHT...S winds around 10 kt with gusts up to 20 kt. Seas 2 to 3 ft. A chance of showers with patchy drizzle. .TUE...S winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. A chance of showers with patchy drizzle. .TUE NIGHT...S winds around 10 kt with gusts up to 20 kt. Seas 2 to 3 ft. Winds and seas higher in and near tstms. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ235-200815- Rhode Island Sound- 330 PM EDT Thu Jul 19 2018 .TONIGHT...S winds 5 to 10 kt. Seas 2 to 3 ft. .FRI...SW winds around 5 kt, becoming SE in the afternoon. Seas 2 to 3 ft. .FRI NIGHT...SE winds 5 to 10 kt. Seas 2 to 3 ft. .SAT...E winds 10 to 15 kt. Gusts up to 20 kt in the afternoon. Seas 2 to 4 ft. .SAT NIGHT...E winds 15 to 20 kt with gusts up to 30 kt. Seas 3 to 5 ft. Showers likely with a chance of tstms. Some tstms may produce heavy rainfall. Vsby 1 to 3 NM. .SUN...SE winds 15 to 20 kt, becoming S 10 to 15 kt in the afternoon. Gusts up to 30 kt. Seas 4 to 7 ft. Showers likely with patchy drizzle. .SUN NIGHT...S winds 10 to 15 kt with gusts up to 20 kt. Seas 4 to 6 ft. A chance of showers with patchy drizzle. .MON...S winds 10 to 15 kt with gusts up to 20 kt. Seas 4 to 6 ft. A chance of showers with patchy drizzle. .MON NIGHT...S winds 10 to 15 kt with gusts up to 20 kt. Seas 4 to 6 ft. A chance of showers with patchy drizzle. .TUE...S winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 5 ft. A chance of showers with patchy drizzle. .TUE NIGHT...S winds 10 to 15 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. $$ ANZ237-200815- Block Island Sound- 330 PM EDT Thu Jul 19 2018 .TONIGHT...S winds 5 to 10 kt, becoming SW after midnight. Seas 2 to 3 ft. .FRI...SW winds around 5 kt, becoming S in the afternoon. Seas 2 to 3 ft. .FRI NIGHT...SE winds 5 to 10 kt. Seas 2 to 3 ft. .SAT...E winds 10 to 15 kt. Gusts up to 20 kt in the afternoon. Seas 2 to 4 ft. .SAT NIGHT...E winds 15 to 20 kt with gusts up to 30 kt. Seas 3 to 5 ft. Showers likely with a chance of tstms. Some tstms may produce heavy rainfall. Vsby 1 to 3 NM. .SUN...SE winds 15 to 20 kt with gusts up to 30 kt, becoming S 10 to 15 kt with gusts up to 20 kt in the afternoon. Seas 4 to 6 ft. Showers likely with patchy drizzle. .SUN NIGHT...S winds 10 to 15 kt with gusts up to 20 kt. Seas 4 to 6 ft. A chance of showers with patchy drizzle. .MON...S winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 5 ft. A chance of showers with patchy drizzle. .MON NIGHT...S winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 5 ft. A chance of showers with patchy drizzle. .TUE...S winds around 10 kt with gusts up to 20 kt. Seas 3 to 5 ft. A chance of showers with patchy drizzle. .TUE NIGHT...S winds around 10 kt with gusts up to 20 kt. Seas 2 to 4 ft. A chance of showers. Winds and seas higher in and near tstms. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ230-200815- Boston Harbor- 330 PM EDT Thu Jul 19 2018 .TONIGHT...S winds 5 to 10 kt, becoming SW after midnight. Waves 1 foot or less. .FRI...SW winds around 5 kt, becoming SE in the afternoon. Waves 1 foot or less. .FRI NIGHT...SE winds 5 to 10 kt, diminishing to around 5 kt after midnight. Waves 1 foot or less. .SAT...E winds 5 to 10 kt. Waves around 2 ft. .SAT NIGHT...E winds 5 to 10 kt. Gusts up to 20 kt after midnight. Waves around 2 ft. Showers. .SUN...SE winds around 10 kt with gusts up to 20 kt. Waves around 2 ft. Showers with possible tstms and drizzle. Some tstms may produce heavy rainfall. .SUN NIGHT...S winds 5 to 10 kt. Waves around 2 ft. A chance of showers with patchy drizzle. Vsby 1 to 3 NM. .MON...S winds 5 to 10 kt with gusts up to 20 kt. Waves around 2 ft. A chance of showers with patchy drizzle. .MON NIGHT...S winds 5 to 10 kt with gusts up to 20 kt. Waves around 2 ft. A chance of showers with patchy drizzle. .TUE...S winds 5 to 10 kt with gusts up to 20 kt. Waves around 2 ft. A chance of showers with patchy drizzle. .TUE NIGHT...SW winds 5 to 10 kt with gusts up to 20 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. $$ ANZ236-200815- Narragansett Bay- 330 PM EDT Thu Jul 19 2018 .TONIGHT...SW winds 5 to 10 kt. Waves around 2 ft. .FRI...SW winds around 5 kt, becoming S in the afternoon. Waves around 2 ft. .FRI NIGHT...SE winds 5 to 10 kt. Waves around 2 ft. .SAT...E winds 5 to 10 kt. Waves 2 to 3 ft. .SAT NIGHT...E winds 10 to 15 kt with gusts up to 25 kt. Waves 2 to 3 ft. Showers with a chance of tstms. Some tstms may produce heavy rainfall. Vsby 1 to 3 NM. .SUN...S winds 10 to 15 kt with gusts up to 25 kt. Waves 2 to 4 ft. Showers with possible tstms and drizzle. Some tstms may produce heavy rainfall. .SUN NIGHT...S winds around 10 kt. Waves 2 to 4 ft. A chance of showers with patchy drizzle. .MON...S winds 10 to 15 kt with gusts up to 20 kt. Waves 2 to 3 ft. A chance of showers with patchy drizzle. .MON NIGHT...S winds around 10 kt. Waves 2 to 3 ft. A chance of showers with patchy drizzle. .TUE...S winds around 10 kt with gusts up to 20 kt. Waves 2 to 3 ft. A chance of showers with patchy drizzle. .TUE NIGHT...S winds around 10 kt. Waves 2 to 3 ft. A chance of showers. Winds and waves higher in and near tstms. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ 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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