FZUS51 KBOX 191932 CWFBOX Coastal Waters Forecast for Massachusetts National Weather Service Boston/Norton MA 332 PM EDT Thu Sep 19 2019 Coastal waters from the Merrimack River MA to Watch Hill RI out to 25 NM ANZ200-200815- 332 PM EDT Thu Sep 19 2019 .Synopsis for Massachusetts and Rhode Island coastal waters... High pres builds slowly builds S of the waters Fri through Sun. Meanwhile E swell from distant Hurricane Humberto will impact the waters during the next 24 to 48 hours. 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. $$ ANZ250-200815- Coastal waters east of Ipswich Bay and the Stellwagen Bank National Marine Sanctuary- 332 PM EDT Thu Sep 19 2019 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH SATURDAY MORNING... .TONIGHT...S winds around 5 kt, becoming W after midnight. Seas 5 to 6 ft. .FRI...W winds 5 to 10 kt. Seas around 7 ft. .FRI NIGHT...W winds 5 to 10 kt. Seas around 7 ft. .SAT...NW winds 5 to 10 kt, becoming NE in the afternoon. Seas 5 to 6 ft. .SAT NIGHT...S winds 5 to 10 kt. Seas around 4 ft. .SUN...S winds 10 to 15 kt. Gusts up to 20 kt in the afternoon. Seas 3 to 4 ft. .SUN NIGHT...SW winds 15 to 20 kt. Seas around 4 ft. .MON...SW winds 15 to 20 kt. Seas 4 to 5 ft. A chance of showers in the afternoon. .MON NIGHT...SW winds 15 to 20 kt, diminishing to 10 to 15 kt after midnight. Seas 4 to 5 ft. A chance of showers. .TUE...NW winds 5 to 10 kt. Seas around 3 ft. A chance of showers in the morning. .TUE NIGHT...N winds 5 to 10 kt, increasing to 10 to 15 kt with gusts up to 20 kt after midnight. Seas around 4 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ251-200815- Massachusetts Bay and Ipswich Bay- 332 PM EDT Thu Sep 19 2019 ...SMALL CRAFT ADVISORY IN EFFECT FROM FRIDAY MORNING THROUGH SATURDAY MORNING... .TONIGHT...S winds around 5 kt, becoming W after midnight. Seas around 4 ft. .FRI...W winds 5 to 10 kt. Seas 5 to 6 ft. .FRI NIGHT...W winds 5 to 10 kt. Seas 5 to 6 ft. .SAT...NW winds 5 to 10 kt, becoming E in the afternoon. Seas 4 to 5 ft. .SAT NIGHT...S winds 5 to 10 kt. Seas 3 to 4 ft. .SUN...S winds 5 to 10 kt, increasing to 10 to 15 kt in the afternoon. Seas around 3 ft. .SUN NIGHT...SW winds 10 to 15 kt. Seas around 3 ft. .MON...SW winds 10 to 15 kt with gusts up to 20 kt. Seas around 3 ft. A chance of showers in the afternoon. .MON NIGHT...SW winds 10 to 15 kt, diminishing to 5 to 10 kt after midnight. Seas 2 to 3 ft. A chance of showers. .TUE...NW winds 5 to 10 kt. Seas around 2 ft. A chance of showers in the morning. .TUE NIGHT...N winds 5 to 10 kt. Seas around 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. $$ ANZ231-200815- Cape Cod Bay- 332 PM EDT Thu Sep 19 2019 .TONIGHT...N winds 5 to 10 kt, becoming W after midnight. Seas around 3 ft. .FRI...W winds 5 to 10 kt. Seas around 4 ft. .FRI NIGHT...W winds 5 to 10 kt. Seas around 4 ft. .SAT...NW winds around 5 kt, becoming NE in the afternoon. Seas 2 to 3 ft. .SAT NIGHT...S winds around 5 kt. Seas around 2 ft. .SUN...S winds 5 to 10 kt, increasing to 10 to 15 kt in the afternoon. Seas 1 foot or less, then around 2 ft in the afternoon. .SUN NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft. .MON...SW winds 10 to 15 kt, increasing to 15 to 20 kt in the afternoon. Gusts up to 25 kt. Seas around 2 ft. A chance of showers in the afternoon. .MON NIGHT...SW winds 10 to 15 kt. Gusts up to 20 kt in the evening. Seas around 2 ft. A chance of showers. .TUE...W winds around 10 kt, becoming N in the afternoon. Seas 1 foot or less. A chance of showers. .TUE NIGHT...N winds 5 to 10 kt. Seas 2 to 3 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ254-200815- Coastal waters from Provincetown MA to Chatham MA to Nantucket MA out 20 nm- 332 PM EDT Thu Sep 19 2019 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH SATURDAY MORNING... .TONIGHT...N winds 10 to 15 kt, becoming NW 5 to 10 kt after midnight. Seas around 7 ft. .FRI...W winds 5 to 10 kt. Seas around 8 ft. .FRI NIGHT...W winds 5 to 10 kt. Seas 7 to 8 ft. .SAT...NW winds 5 to 10 kt, becoming N in the afternoon. Seas 5 to 6 ft. .SAT NIGHT...SE winds around 5 kt, becoming S after midnight. Seas 3 to 4 ft. .SUN...S winds 5 to 10 kt, increasing to 10 to 15 kt in the afternoon. Seas 3 to 4 ft. .SUN NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas around 4 ft. .MON...SW winds 15 to 20 kt. Seas around 5 ft. A chance of showers in the afternoon. .MON NIGHT...SW winds 10 to 15 kt. Gusts up to 20 kt in the evening. Seas around 5 ft. A chance of showers. .TUE...NW winds 5 to 10 kt. Seas around 4 ft. A chance of showers. .TUE NIGHT...NW winds 5 to 10 kt. Seas 4 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. $$ ANZ255-200815- Coastal Waters extending out to 25 nm South of Marthas Vineyard and Nantucket- 332 PM EDT Thu Sep 19 2019 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH SATURDAY MORNING... .TONIGHT...NE winds 10 to 15 kt with gusts up to 20 kt, becoming NW 5 to 10 kt after midnight. Seas around 7 ft. .FRI...NW winds 5 to 10 kt, becoming W 10 to 15 kt in the afternoon. Seas around 7 ft. .FRI NIGHT...W winds 10 to 15 kt with gusts up to 20 kt, diminishing to 5 to 10 kt after midnight. Seas 6 to 7 ft. .SAT...NW winds 5 to 10 kt, becoming W in the afternoon. Seas 5 to 6 ft. .SAT NIGHT...S winds around 5 kt. Seas around 3 ft. .SUN...S winds 5 to 10 kt, becoming SW 10 to 15 kt in the afternoon. Seas around 3 ft. .SUN NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 4 to 5 ft. .MON...SW winds 15 to 20 kt. Seas around 5 ft. .MON NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas around 5 ft. A chance of showers. .TUE...W winds around 10 kt. Seas around 5 ft. A chance of showers. .TUE NIGHT...N winds 5 to 10 kt. Seas around 5 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ256-200815- Coastal Waters from Montauk NY to Marthas Vineyard extending out to 20 nm South of Block Island- 332 PM EDT Thu Sep 19 2019 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH SATURDAY MORNING... .TONIGHT...NE winds 5 to 10 kt, becoming NW after midnight. Seas around 6 ft. .FRI...NW winds 5 to 10 kt, becoming W 10 to 15 kt in the afternoon. Seas 5 to 6 ft. .FRI NIGHT...W winds 10 to 15 kt, diminishing to 5 to 10 kt after midnight. Seas 5 to 6 ft. .SAT...NW winds 5 to 10 kt, becoming SW in the afternoon. Seas around 4 ft. .SAT NIGHT...SW winds around 5 kt. Seas around 3 ft. .SUN...S winds 5 to 10 kt, becoming SW 10 to 15 kt in the afternoon. Seas around 3 ft. .SUN NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 4 to 5 ft. .MON...SW winds 15 to 20 kt. Seas around 6 ft. .MON NIGHT...SW winds 15 to 20 kt, becoming W 10 to 15 kt after midnight. Seas 5 to 6 ft. A chance of showers. .TUE...W winds around 10 kt. Seas around 5 ft. A chance of showers in the morning. .TUE NIGHT...N winds 5 to 10 kt. Seas around 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. $$ ANZ232-200815- Nantucket Sound- 332 PM EDT Thu Sep 19 2019 .TONIGHT...NE winds 5 to 10 kt, becoming NW after midnight. Seas 3 to 4 ft. .FRI...W winds 5 to 10 kt. Seas around 4 ft. .FRI NIGHT...W winds 5 to 10 kt. Seas around 4 ft. .SAT...NW winds 5 to 10 kt, becoming SW in the afternoon. Seas 2 to 3 ft. .SAT NIGHT...S winds around 5 kt. Seas 1 foot or less. .SUN...S winds 5 to 10 kt, becoming SW 10 to 15 kt in the afternoon. Seas around 2 ft. .SUN NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas around 3 ft. .MON...SW winds 10 to 15 kt, increasing to 15 to 20 kt in the afternoon. Gusts up to 25 kt. Seas around 3 ft. .MON NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas around 3 ft. A chance of showers. .TUE...NW winds 5 to 10 kt. Seas 2 to 3 ft. A chance of showers. .TUE NIGHT...N winds 5 to 10 kt. Seas around 2 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ233-200815- Vineyard Sound- 332 PM EDT Thu Sep 19 2019 .TONIGHT...NE winds 5 to 10 kt, becoming W after midnight. Seas around 3 ft. .FRI...W winds 5 to 10 kt, increasing to 10 to 15 kt in the afternoon. Seas around 3 ft. .FRI NIGHT...W winds 5 to 10 kt. Seas around 3 ft. .SAT...NW winds around 5 kt, becoming SW around 5 kt in the afternoon. Seas around 2 ft. .SAT NIGHT...S winds around 5 kt. Seas 1 foot or less. .SUN...S winds 5 to 10 kt, becoming SW 10 to 15 kt in the afternoon. Seas 1 foot or less, then around 2 ft in the afternoon. .SUN NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas around 3 ft. .MON...SW winds 10 to 15 kt, increasing to 15 to 20 kt in the afternoon. Gusts up to 25 kt. Seas around 4 ft. .MON NIGHT...SW winds 10 to 15 kt. Gusts up to 20 kt in the evening. Seas around 4 ft. A chance of showers. .TUE...W winds 5 to 10 kt. Seas 3 to 4 ft. A chance of showers. .TUE NIGHT...N winds 5 to 10 kt. Seas around 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. $$ ANZ234-200815- Buzzards Bay- 332 PM EDT Thu Sep 19 2019 .TONIGHT...NE winds 5 to 10 kt, becoming W after midnight. Seas around 2 ft. .FRI...W winds 5 to 10 kt. Seas around 2 ft. .FRI NIGHT...W winds 5 to 10 kt. Seas around 2 ft. .SAT...NW winds around 5 kt, becoming SW in the afternoon. Seas around 2 ft in the morning, then 1 foot or less. .SAT NIGHT...S winds around 5 kt. Seas 1 foot or less. .SUN...S winds 5 to 10 kt, becoming SW 10 to 15 kt in the afternoon. Seas 1 foot or less, then around 2 ft in the afternoon. .SUN NIGHT...SW winds 10 to 15 kt. Gusts up to 20 kt after midnight. Seas 2 to 3 ft. .MON...SW winds 10 to 15 kt with gusts up to 25 kt. Seas around 4 ft. A chance of showers in the afternoon. .MON NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt, diminishing to 5 to 10 kt after midnight. Seas around 3 ft. A chance of showers. .TUE...W winds 5 to 10 kt. Seas around 2 ft. A chance of showers. .TUE NIGHT...N winds 5 to 10 kt. Seas around 2 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ235-200815- Rhode Island Sound- 332 PM EDT Thu Sep 19 2019 .TONIGHT...E winds 5 to 10 kt, becoming W after midnight. Seas around 4 ft. .FRI...W winds 5 to 10 kt, becoming SW 10 to 15 kt in the afternoon. Seas around 4 ft. .FRI NIGHT...W winds 10 to 15 kt, becoming NW 5 to 10 kt after midnight. Seas around 4 ft. .SAT...NW winds 5 to 10 kt, becoming SW in the afternoon. Seas 2 to 3 ft. .SAT NIGHT...S winds 5 to 10 kt. Seas around 2 ft. .SUN...S winds 5 to 10 kt, becoming SW 10 to 15 kt in the afternoon. Seas 2 to 3 ft. .SUN NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas around 4 ft. .MON...SW winds 15 to 20 kt with gusts up to 25 kt. Seas around 5 ft. .MON NIGHT...SW winds 10 to 15 kt. Gusts up to 20 kt in the evening. Seas around 5 ft. A chance of showers. .TUE...W winds around 10 kt. Seas 4 to 5 ft. A chance of showers in the morning. .TUE NIGHT...N winds 5 to 10 kt. Seas around 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. $$ ANZ237-200815- Block Island Sound- 332 PM EDT Thu Sep 19 2019 .TONIGHT...SE winds around 5 kt, becoming W after midnight. Seas around 4 ft. .FRI...W winds 5 to 10 kt, increasing to 10 to 15 kt in the afternoon. Seas around 4 ft. .FRI NIGHT...W winds 5 to 10 kt. Seas 3 to 4 ft. .SAT...NW winds around 5 kt, becoming SW in the afternoon. Seas around 3 ft. .SAT NIGHT...SW winds around 5 kt. Seas around 2 ft. .SUN...S winds 5 to 10 kt, becoming SW 10 to 15 kt in the afternoon. Seas 2 to 3 ft. .SUN NIGHT...SW winds 10 to 15 kt. Gusts up to 20 kt after midnight. Seas 4 to 5 ft. .MON...SW winds 10 to 15 kt with gusts up to 20 kt. Seas around 5 ft. A chance of showers in the afternoon. .MON NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt, becoming W 5 to 10 kt after midnight. Seas around 5 ft. A chance of showers. .TUE...NW winds 5 to 10 kt. Seas 4 to 5 ft. A chance of showers in the morning. .TUE NIGHT...N winds 5 to 10 kt. Seas around 4 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ230-200815- Boston Harbor- 332 PM EDT Thu Sep 19 2019 .TONIGHT...S winds around 5 kt, becoming W after midnight. Waves 1 foot or less, except up to 4 ft at the outer harbor entrance. .FRI...W winds 5 to 10 kt. Waves 1 foot or less, except 4 to 5 ft at the outer harbor entrance. .FRI NIGHT...W winds 5 to 10 kt. Waves 1 foot or less, except up to 5 ft at the outer harbor entrance. .SAT...NW winds around 5 kt, becoming E in the afternoon. Waves 1 foot or less, except up to 4 ft at the outer harbor entrance. .SAT NIGHT...S winds 5 to 10 kt. Waves 1 foot or less. .SUN...S winds 5 to 10 kt. Waves 1 foot or less, then around 2 ft in the afternoon. .SUN NIGHT...SW winds 10 to 15 kt. Waves 1 foot or less, then around 2 ft after midnight. .MON...SW winds 10 to 15 kt. Gusts up to 20 kt in the afternoon. Waves around 2 ft. A chance of showers in the afternoon. .MON NIGHT...SW winds 5 to 10 kt. Waves 1 foot or less. A chance of showers. .TUE...NW winds 5 to 10 kt. Waves 1 foot or less. A chance of showers in the morning. .TUE NIGHT...N 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. $$ ANZ236-200815- Narragansett Bay- 332 PM EDT Thu Sep 19 2019 .TONIGHT...SE winds around 5 kt, becoming W after midnight. Waves around 2 ft. .FRI...W winds 5 to 10 kt. Waves 2 to 3 ft. .FRI NIGHT...W winds 5 to 10 kt. Waves around 2 ft. .SAT...NW winds around 5 kt, becoming SW in the afternoon. Waves around 2 ft in the morning, then 1 foot or less. .SAT NIGHT...S winds around 5 kt. Waves 1 foot or less. .SUN...S winds 5 to 10 kt, increasing to 10 to 15 kt in the afternoon. Waves 1 foot or less, then around 2 ft in the afternoon. .SUN NIGHT...SW winds 10 to 15 kt. Waves around 3 ft. .MON...SW winds 10 to 15 kt with gusts up to 20 kt. Waves around 3 ft. A chance of showers in the afternoon. .MON NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt, becoming W 5 to 10 kt after midnight. Waves around 3 ft. A chance of showers. .TUE...NW winds 5 to 10 kt. Waves 2 to 3 ft. A chance of showers in the morning. .TUE NIGHT...N winds 5 to 10 kt. Waves 2 to 3 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ For the latest updates...please visit our webpage at www.weather.gov/boston You can follow us on Facebook at www.facebook.com/us.nationalweatherservice.boston.gov You can follow us on Twitter at @NWSBoston