FZUS51 KBOX 281427 CWFBOX Coastal Waters Forecast for Massachusetts and Rhode Island National Weather Service Boston/Norton MA 1027 AM EDT Wed Jul 28 2021 Coastal waters from the Merrimack River MA to Watch Hill RI out to 25 NM ANZ200-290300- 1027 AM EDT Wed Jul 28 2021 .Synopsis for Massachusetts and Rhode Island coastal waters... High pressure briefly moves in this afternoon followed by low pressure and showers Thursday evening into Friday morning. High pressure then builds in again this weekend. Another front will bring another round of showers for Monday. For additional information on possible hazardous weather for the week ahead, please visit www.weather.gov/boston/ehwo $$ ANZ250-290300- Coastal waters east of Ipswich Bay and the Stellwagen Bank National Marine Sanctuary- 1027 AM EDT Wed Jul 28 2021 .THIS AFTERNOON...NE winds 5 to 10 kt with gusts up to 20 kt. Seas 2 to 3 ft. A slight chance of showers. .TONIGHT...SE winds around 5 kt, becoming SW after midnight. Seas around 2 ft. .THU...SW winds 5 to 10 kt, becoming S 10 to 15 kt with gusts up to 20 kt in the afternoon. Seas 2 to 3 ft. .THU NIGHT...S winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. A chance of showers. .FRI...SW winds 10 to 15 kt with gusts up to 20 kt, becoming NW in the afternoon. Seas 3 to 4 ft. A chance of showers. .FRI NIGHT...NW winds 15 to 20 kt. Seas 3 to 5 ft. .SAT...W winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 5 ft. .SAT NIGHT...SW winds around 10 kt. Seas 2 to 3 ft. .SUN AND SUN NIGHT...S winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. A chance of showers. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ251-290300- Massachusetts Bay and Ipswich Bay- 1027 AM EDT Wed Jul 28 2021 .THIS AFTERNOON...NE winds 5 to 10 kt with gusts up to 20 kt. Seas around 2 ft. A slight chance of showers. .TONIGHT...S winds around 5 kt, becoming SW after midnight. Seas around 2 ft. .THU...S winds 5 to 10 kt, increasing to 10 to 15 kt with gusts up to 20 kt in the afternoon. Seas around 2 ft. .THU NIGHT...S winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. A chance of showers. .FRI...W winds around 10 kt, becoming NW in the afternoon. Seas 2 to 3 ft. A chance of showers. .FRI NIGHT...NW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. .SAT AND SAT NIGHT...W winds 10 to 15 kt with gusts up to 20 kt, becoming SW 5 to 10 kt. Seas 2 to 3 ft. .SUN AND SUN NIGHT...S winds 5 to 10 kt. Gusts up to 20 kt. Seas 2 to 3 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. $$ ANZ231-290300- Cape Cod Bay- 1027 AM EDT Wed Jul 28 2021 .THIS AFTERNOON...N winds 5 to 10 kt with gusts up to 20 kt. Seas around 2 ft. A chance of showers this morning. .TONIGHT...E winds around 5 kt, becoming SW after midnight. Seas around 2 ft. .THU...S winds 5 to 10 kt, increasing to 10 to 15 kt with gusts up to 20 kt in the afternoon. Seas around 2 ft. .THU NIGHT...S winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft. A chance of showers. .FRI...SW winds 10 to 15 kt, becoming NW in the afternoon. Seas around 2 ft. A chance of showers. .FRI NIGHT...NW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. .SAT THROUGH SUN...S winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. .SUN NIGHT...S winds around 10 kt with gusts up to 20 kt. Seas 1 foot or less. A chance of showers. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ254-290300- Coastal waters from Provincetown MA to Chatham MA to Nantucket MA out 20 nm- 1027 AM EDT Wed Jul 28 2021 .THIS AFTERNOON...N winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. A slight chance of showers. .TONIGHT...NE winds 5 to 10 kt, becoming S after midnight. Seas 2 to 3 ft. .THU...S winds 5 to 10 kt, increasing to 10 to 15 kt with gusts up to 20 kt in the afternoon. Seas 2 to 3 ft. .THU NIGHT...S winds around 15 kt with gusts up to 20 kt. Seas 3 to 5 ft. A chance of showers. .FRI...W winds 10 to 15 kt with gusts up to 20 kt. Seas 4 to 5 ft. A chance of showers. .FRI NIGHT...NW winds 10 to 15 kt, increasing to 15 to 20 kt after midnight. Seas 4 to 5 ft. .SAT...W winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 5 ft. .SAT NIGHT AND SUN...SW winds 10 to 15 kt. Seas 2 to 4 ft. .SUN NIGHT...S winds 10 to 15 kt with gusts up to 20 kt. Seas 3 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. $$ ANZ255-290300- Coastal Waters extending out to 25 nm South of Marthas Vineyard and Nantucket- 1027 AM EDT Wed Jul 28 2021 .THIS AFTERNOON...N winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. A slight chance of showers. .TONIGHT...NE winds 5 to 10 kt with gusts up to 20 kt, becoming E after midnight. Seas 2 to 3 ft. .THU...SE winds 5 to 10 kt, becoming S 10 to 15 kt with gusts up to 20 kt in the afternoon. Seas around 2 ft. .THU NIGHT...S winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. A chance of showers. .FRI...W winds 10 to 15 kt with gusts up to 20 kt. Seas 4 to 5 ft. A chance of showers. .FRI NIGHT...NW winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 5 ft. .SAT...W winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 5 ft. .SAT NIGHT AND SUN...SW winds 10 to 15 kt, becoming S 5 to 10 kt. Seas 2 to 4 ft. .SUN NIGHT...S winds around 10 kt with gusts up to 20 kt. Seas 3 to 4 ft. A chance of showers. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ256-290300- Coastal Waters from Montauk NY to Marthas Vineyard extending out to 20 nm South of Block Island- 1027 AM EDT Wed Jul 28 2021 .THIS AFTERNOON...NE winds around 10 kt. Gusts up to 20 kt. Seas around 3 ft. A slight chance of showers. .TONIGHT...E winds 5 to 10 kt, becoming SE after midnight. Seas 2 to 3 ft. .THU...SE winds 5 to 10 kt, becoming S 10 to 15 kt with gusts up to 20 kt in the afternoon. Seas around 2 ft. .THU NIGHT...S winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. A chance of showers. Vsby 1 NM or less. .FRI...W winds 10 to 15 kt with gusts up to 20 kt. Seas 4 to 5 ft. A chance of showers. .FRI NIGHT...NW winds around 15 kt with gusts up to 20 kt. Seas 3 to 5 ft. .SAT THROUGH SUN...S winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 4 ft. .SUN NIGHT...SW winds around 10 kt with gusts up to 20 kt. Seas around 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. $$ ANZ232-290300- Nantucket Sound- 1027 AM EDT Wed Jul 28 2021 .THIS AFTERNOON...NE winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft. A chance of showers this morning. .TONIGHT...NE winds 5 to 10 kt, becoming S after midnight. Seas around 2 ft. .THU...S winds 5 to 10 kt, increasing to 10 to 15 kt with gusts up to 20 kt in the afternoon. Seas around 2 ft. .THU NIGHT...S winds around 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. A chance of showers. .FRI...W winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. A chance of showers. .FRI NIGHT...NW winds 10 to 15 kt. Gusts up to 20 kt after midnight. Seas 2 to 3 ft. .SAT THROUGH SUN...S winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft. .SUN NIGHT...S winds around 10 kt with gusts up to 20 kt. Seas around 2 ft. A chance of showers. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ233-290300- Vineyard Sound- 1027 AM EDT Wed Jul 28 2021 .THIS AFTERNOON...NE winds around 10 kt with gusts up to 20 kt. Seas around 2 ft. A chance of showers this morning. .TONIGHT...E winds 5 to 10 kt, becoming S after midnight. Seas around 2 ft. .THU...S winds 5 to 10 kt, increasing to 10 to 15 kt with gusts up to 20 kt in the afternoon. Seas around 2 ft. .THU NIGHT...S winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. A chance of showers. .FRI...W winds around 10 kt. Gusts up to 20 kt in the morning. Seas 2 to 3 ft. A chance of showers. .FRI NIGHT...NW winds 10 to 15 kt. Gusts up to 20 kt after midnight. Seas 2 to 3 ft. .SAT THROUGH SUN...SW winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft. .SUN NIGHT...SW winds around 10 kt with gusts up to 20 kt. Seas around 2 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. $$ ANZ234-290300- Buzzards Bay- 1027 AM EDT Wed Jul 28 2021 .THIS AFTERNOON...NE winds around 10 kt with gusts up to 20 kt. Seas around 2 ft. A chance of showers this morning. .TONIGHT...E winds 5 to 10 kt, becoming S after midnight. Seas around 2 ft. .THU...S winds 5 to 10 kt, increasing to 10 to 15 kt with gusts up to 20 kt in the afternoon. Seas around 2 ft. .THU NIGHT...S winds 10 to 15 kt. Gusts up to 20 kt in the evening. Seas 2 to 3 ft. A chance of showers. .FRI...W winds around 10 kt. Seas 2 to 3 ft. A chance of showers. .FRI NIGHT...NW winds 10 to 15 kt. Seas 2 to 3 ft. .SAT THROUGH SUN...SW winds 10 to 15 kt. Seas 2 to 3 ft. .SUN NIGHT...SW winds around 10 kt with gusts up to 20 kt. Seas 2 to 3 ft. A chance of showers. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ235-290300- Rhode Island Sound- 1027 AM EDT Wed Jul 28 2021 .THIS AFTERNOON...NE winds around 10 kt with gusts up to 20 kt. Seas 2 to 3 ft. A chance of showers this morning. .TONIGHT...E winds 5 to 10 kt, becoming S after midnight. Seas around 2 ft. .THU...SE winds 5 to 10 kt, becoming S 10 to 15 kt with gusts up to 20 kt in the afternoon. Seas around 2 ft. .THU NIGHT...S winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. A chance of showers. .FRI...W winds 10 to 15 kt. Gusts up to 20 kt in the morning. Seas 3 to 4 ft. A chance of showers. .FRI NIGHT...NW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. .SAT AND SAT NIGHT...W winds 10 to 15 kt. Gusts up to 20 kt. Seas 2 to 3 ft. .SUN AND SUN NIGHT...SW winds 5 to 10 kt. 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. $$ ANZ237-290300- Block Island Sound- 1027 AM EDT Wed Jul 28 2021 .THIS AFTERNOON...NE winds 5 to 10 kt. Seas 2 to 3 ft. A chance of showers this morning. .TONIGHT...SE winds 5 to 10 kt, becoming S after midnight. Seas around 2 ft. .THU...SE winds 5 to 10 kt, becoming S 10 to 15 kt with gusts up to 20 kt in the afternoon. Seas around 2 ft. A chance of showers. .THU NIGHT...S winds 10 to 15 kt. Gusts up to 20 kt in the evening. Seas 2 to 4 ft. A chance of showers. Vsby 1 NM or less. .FRI...W winds 10 to 15 kt. Seas 3 to 4 ft. A chance of showers. .FRI NIGHT...NW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. .SAT AND SAT NIGHT...W winds 10 to 15 kt, becoming SW 5 to 10 kt. Seas 2 to 3 ft. .SUN AND SUN NIGHT...SW winds 5 to 10 kt. Gusts up to 20 kt. Seas 2 to 3 ft. A chance of showers. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ230-290300- Boston Harbor- 1027 AM EDT Wed Jul 28 2021 .THIS AFTERNOON...NE winds 5 to 10 kt. Waves around 2 ft. A slight chance of showers. .TONIGHT...SE winds around 5 kt, becoming SW after midnight. Waves 1 foot or less. .THU...S winds around 5 kt, increasing to around 10 kt with gusts up to 20 kt in the afternoon. Waves around 2 ft. .THU NIGHT...S winds 5 to 10 kt. Gusts up to 20 kt in the evening. Waves around 2 ft. A chance of showers. .FRI...W winds around 10 kt. Waves around 2 ft. A chance of showers. .FRI NIGHT...NW winds around 10 kt. Waves around 2 ft. .SAT AND SAT NIGHT...W winds around 10 kt, becoming SW. Waves 1 foot or less. .SUN AND SUN NIGHT...SW winds 5 to 10 kt. Waves 1 foot or less, then around 2 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. $$ ANZ236-290300- Narragansett Bay- 1027 AM EDT Wed Jul 28 2021 .THIS AFTERNOON...NE winds 5 to 10 kt. Waves around 2 ft. A chance of showers this morning. .TONIGHT...E winds around 5 kt, becoming S around 5 kt after midnight. Waves around 2 ft. .THU...S winds 5 to 10 kt. Gusts up to 20 kt in the afternoon. Waves around 2 ft. A chance of showers. .THU NIGHT...S winds around 10 kt. Gusts up to 20 kt in the evening. Waves around 2 ft. A chance of showers. .FRI...W winds around 10 kt. Waves 1 foot or less, except 2 to 4 ft at the bay entrance. A chance of showers. .FRI NIGHT...NW winds around 10 kt. Waves 1 foot or less. .SAT AND SAT NIGHT...W winds 5 to 10 kt. Waves 1 foot or less. .SUN AND SUN NIGHT...SW winds 5 to 10 kt. Waves 1 foot or less. A chance of showers. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ 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