FZUS51 KBOX 251405 CWFBOX Coastal Waters Forecast for Massachusetts and Rhode Island National Weather Service Boston/Norton MA 1004 AM EDT Thu Jul 25 2024 Coastal waters from the Merrimack River MA to Watch Hill RI out to 25 NM ANZ200-260300- 1004 AM EDT Thu Jul 25 2024 .Synopsis for Massachusetts and Rhode Island coastal waters... A weak front will move across the waters Thursday. High pressure then builds in across the region Friday and through the weekend. $$ ANZ250-260300- Coastal waters east of Ipswich Bay and the Stellwagen Bank National Marine Sanctuary- 1004 AM EDT Thu Jul 25 2024 .THIS AFTERNOON...S winds 5 to 10 kt. Seas around 2 ft. Wave Detail: SE 2 ft at 9 seconds and S 1 foot at 2 seconds. Areas of fog. Areas of dense fog. A slight chance of showers. Vsby 1 NM or less. .TONIGHT...W winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Wave Detail: SW 2 ft at 3 seconds and SE 2 ft at 9 seconds. .FRI...NW winds 10 to 15 kt with gusts up to 20 kt, becoming W 5 to 10 kt in the afternoon. Seas 2 to 3 ft. Wave Detail: NW 2 ft at 3 seconds and SE 2 ft at 9 seconds. .FRI NIGHT...SW winds around 5 kt, becoming NW after midnight. Seas around 2 ft. Wave Detail: W 1 foot at 3 seconds and NE 1 foot at 5 seconds. .SAT...N winds 5 to 10 kt, becoming NE in the afternoon. Seas around 2 ft in the morning, then 1 foot or less. Wave Detail: N 1 foot at 4 seconds and SE 1 foot at 9 seconds. .SAT NIGHT...S winds around 5 kt. Seas 1 foot or less. Wave Detail: N 1 foot at 4 seconds and SE 1 foot at 9 seconds. .SUN THROUGH MON NIGHT...S winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ251-260300- Massachusetts Bay and Ipswich Bay- 1004 AM EDT Thu Jul 25 2024 .THIS AFTERNOON...S winds 5 to 10 kt. Seas 1 foot or less, then around 2 ft. Wave Detail: E 1 foot at 5 seconds and SE 1 foot at 10 seconds, becoming E 2 ft at 5 seconds and S 1 foot at 2 seconds. A slight chance of showers with isolated tstms. .TONIGHT...W winds around 10 kt. Seas around 2 ft. Wave Detail: SW 1 foot at 3 seconds and E 1 foot at 5 seconds. .FRI...NW winds 5 to 10 kt. Seas around 2 ft in the morning, then 1 foot or less. Wave Detail: NW 1 foot at 3 seconds and E 1 foot at 5 seconds. .FRI NIGHT...SW winds around 5 kt, becoming NW after midnight. Seas 1 foot or less. Wave Detail: W 1 foot at 2 seconds and NE 1 foot at 4 seconds. .SAT...N winds around 5 kt, becoming E in the afternoon. Seas 1 foot or less. Wave Detail: NW 1 foot at 2 seconds and NE 1 foot at 4 seconds. .SAT NIGHT...S winds 5 to 10 kt, becoming SW after midnight. Seas 1 foot or less. Wave Detail: E 1 foot at 3 seconds and SE 1 foot at 9 seconds. .SUN THROUGH MON NIGHT...S winds 10 to 15 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. $$ ANZ231-260300- Cape Cod Bay- 1004 AM EDT Thu Jul 25 2024 .THIS AFTERNOON...S winds 5 to 10 kt. Seas 1 foot or less, then around 2 ft. Wave Detail: E 1 foot at 4 seconds and SE 1 foot at 8 seconds, becoming SW 1 foot at 2 seconds and E 1 foot at 5 seconds. A slight chance of showers with isolated tstms. .TONIGHT...W winds around 10 kt. Seas around 2 ft. Wave Detail: SW 1 foot at 2 seconds and E 1 foot at 5 seconds. .FRI...NW winds 5 to 10 kt. Seas around 2 ft in the morning, then 1 foot or less. Wave Detail: NW 1 foot at 3 seconds and E 1 foot at 5 seconds, becoming N 1 foot at 4 seconds and S 1 foot at 8 seconds. .FRI NIGHT...SW winds around 5 kt, becoming W after midnight. Seas 1 foot or less. Wave Detail: N 1 foot at 4 seconds and S 1 foot at 8 seconds. .SAT...N winds around 5 kt, becoming NE in the afternoon. Seas 1 foot or less. Wave Detail: N 1 foot at 4 seconds and S 1 foot at 8 seconds. .SAT NIGHT...S winds around 5 kt, becoming SW around 5 kt after midnight. Seas 1 foot or less. Wave Detail: N 1 foot at 3 seconds and SE 1 foot at 8 seconds. .SUN THROUGH MON NIGHT...SW winds 5 to 10 kt. Seas 1 foot or less. Winds and seas higher in and near tstms. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ254-260300- Coastal waters from Provincetown MA to Chatham MA to Nantucket MA out 20 nm- 1004 AM EDT Thu Jul 25 2024 .THIS AFTERNOON...S winds around 5 kt, becoming SW 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. Wave Detail: S 3 ft at 8 seconds and SW 1 foot at 2 seconds. Areas of dense fog. A slight chance of showers with vsby 1 NM or less. .TONIGHT...W winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 4 ft. Wave Detail: S 3 ft at 8 seconds and W 2 ft at 3 seconds. .FRI...NW 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. Wave Detail: S 3 ft at 8 seconds and NW 2 ft at 3 seconds. .FRI NIGHT...W winds around 5 kt. Seas 2 to 3 ft. Wave Detail: S 2 ft at 7 seconds and N 1 foot at 5 seconds. .SAT...N winds around 5 kt. Seas around 2 ft. Wave Detail: S 2 ft at 7 seconds and N 1 foot at 4 seconds. .SAT NIGHT...SE winds around 5 kt, becoming SW after midnight. Seas around 2 ft. Wave Detail: S 2 ft at 7 seconds and N 1 foot at 4 seconds. .SUN THROUGH MON NIGHT...S 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. $$ ANZ255-260300- Coastal Waters extending out to 25 nm South of Marthas Vineyard and Nantucket- 1004 AM EDT Thu Jul 25 2024 .THIS AFTERNOON...SW winds 5 to 10 kt, increasing to 10 to 15 kt with gusts up to 20 kt. Seas 3 to 4 ft. Wave Detail: S 4 ft at 7 seconds and SW 1 foot at 3 seconds. Areas of dense fog. A slight chance of showers with vsby 1 NM or less. .TONIGHT...SW winds 10 to 15 kt, becoming NW after midnight. Gusts up to 20 kt. Seas 3 to 5 ft. Wave Detail: S 4 ft at 7 seconds and W 1 foot at 3 seconds. .FRI...NW winds 10 to 15 kt, diminishing to 5 to 10 kt in the afternoon. Seas 2 to 4 ft. Wave Detail: SW 4 ft at 7 seconds and NW 1 foot at 3 seconds. .FRI NIGHT...W winds around 5 kt. Seas 2 to 3 ft. Wave Detail: S 3 ft at 6 seconds and N 1 foot at 4 seconds. .SAT...N winds 5 to 10 kt, becoming NE in the afternoon. Seas around 2 ft. Wave Detail: S 2 ft at 6 seconds and NW 1 foot at 2 seconds. .SAT NIGHT...S winds around 5 kt, becoming W after midnight. Seas around 2 ft. Wave Detail: S 2 ft at 6 seconds and NE 1 foot at 4 seconds. .SUN THROUGH MON NIGHT...SW winds 5 to 10 kt. Seas 2 to 3 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ256-260300- Coastal Waters from Montauk NY to Marthas Vineyard extending out to 20 nm South of Block Island- 1004 AM EDT Thu Jul 25 2024 .THIS AFTERNOON...SW winds 5 to 10 kt, increasing to 10 to 15 kt with gusts up to 20 kt. Seas 3 to 4 ft. Wave Detail: SE 4 ft at 6 seconds. A slight chance of showers. .TONIGHT...W winds 10 to 15 kt, becoming NW after midnight. Gusts up to 20 kt. Seas 3 to 4 ft. Wave Detail: S 4 ft at 7 seconds and SE 1 foot at 13 seconds. .FRI...NW winds 10 to 15 kt, becoming W 5 to 10 kt in the afternoon. Seas 2 to 4 ft. Wave Detail: S 4 ft at 7 seconds and NW 2 ft at 3 seconds. .FRI NIGHT...SW winds 5 to 10 kt, becoming NW after midnight. Seas 2 to 3 ft. Wave Detail: S 3 ft at 7 seconds and W 1 foot at 3 seconds. .SAT...N winds 5 to 10 kt, becoming SE in the afternoon. Seas around 2 ft. Wave Detail: S 2 ft at 7 seconds and N 1 foot at 2 seconds. .SAT NIGHT...SW winds around 5 kt. Seas around 2 ft. Wave Detail: S 2 ft at 6 seconds. .SUN THROUGH MON NIGHT...SW 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. $$ ANZ232-260300- Nantucket Sound- 1004 AM EDT Thu Jul 25 2024 .THIS AFTERNOON...SW winds 5 to 10 kt, increasing to 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Wave Detail: SW 2 ft at 3 seconds and E 1 foot at 4 seconds. A slight chance of showers. Vsby 1 to 3 NM. .TONIGHT...W winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Wave Detail: W 2 ft at 3 seconds and S 2 ft at 8 seconds. .FRI...NW winds 10 to 15 kt, diminishing to 5 to 10 kt in the afternoon. Seas around 2 ft. Wave Detail: NW 2 ft at 3 seconds and E 1 foot at 5 seconds. .FRI NIGHT...W winds around 5 kt. Seas 1 foot or less. Wave Detail: W 1 foot at 3 seconds and NE 1 foot at 4 seconds. .SAT...N winds 5 to 10 kt, becoming NE in the afternoon. Seas 1 foot or less. Wave Detail: NW 1 foot at 2 seconds and NE 1 foot at 5 seconds. .SAT NIGHT...S winds 5 to 10 kt, becoming W after midnight. Seas 1 foot or less. Wave Detail: E 1 foot at 2 seconds and S 1 foot at 6 seconds. .SUN THROUGH MON NIGHT...SW winds 10 to 15 kt. Seas around 2 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ233-260300- Vineyard Sound- 1004 AM EDT Thu Jul 25 2024 .THIS AFTERNOON...SW winds around 5 kt, increasing to 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Wave Detail: S 2 ft at 7 seconds and SW 1 foot at 3 seconds. A slight chance of showers. .TONIGHT...W winds 10 to 15 kt with gusts up to 20 kt, becoming NW after midnight. Seas 2 to 3 ft. Wave Detail: S 3 ft at 7 seconds and SW 1 foot at 4 seconds. .FRI...NW winds 5 to 10 kt. Seas around 2 ft. Wave Detail: S 2 ft at 7 seconds and NW 1 foot at 4 seconds. .FRI NIGHT...SW winds around 5 kt, becoming NW after midnight. Seas around 2 ft in the evening, then 1 foot or less. Wave Detail: SW 2 ft at 5 seconds and NE 1 foot at 3 seconds, becoming NE 1 foot at 5 seconds and SW 1 foot at 5 seconds. .SAT...N winds around 5 kt, becoming SE in the afternoon. Seas 1 foot or less. Wave Detail: NW 1 foot at 4 seconds and S 1 foot at 6 seconds. .SAT NIGHT...SW winds around 5 kt. Seas 1 foot or less. Wave Detail: E 1 foot at 3 seconds and S 1 foot at 6 seconds. .SUN THROUGH MON NIGHT...SW winds 10 to 15 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. $$ ANZ234-260300- Buzzards Bay- 1004 AM EDT Thu Jul 25 2024 .THIS AFTERNOON...SW winds 5 to 10 kt, increasing to 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft. Wave Detail: SW 2 ft at 3 seconds and S 2 ft at 7 seconds. A slight chance of showers. .TONIGHT...W winds 10 to 15 kt with gusts up to 20 kt, becoming NW after midnight. Seas around 2 ft. Wave Detail: SW 2 ft at 3 seconds and S 2 ft at 7 seconds. .FRI...NW winds 5 to 10 kt. Seas around 2 ft in the morning, then 1 foot or less. Wave Detail: S 2 ft at 7 seconds and NW 1 foot at 4 seconds, becoming NW 1 foot at 4 seconds and NE 1 foot at 5 seconds. .FRI NIGHT...SW winds around 5 kt, becoming NW after midnight. Seas 1 foot or less. Wave Detail: NE 1 foot at 4 seconds and SW 1 foot at 6 seconds. .SAT...N winds around 5 kt, becoming SE in the afternoon. Seas 1 foot or less. Wave Detail: NW 1 foot at 4 seconds and NE 1 foot at 5 seconds. .SAT NIGHT...S winds 5 to 10 kt, becoming SW after midnight. Seas 1 foot or less. Wave Detail: E 1 foot at 2 seconds and S 1 foot at 6 seconds. .SUN THROUGH MON NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ235-260300- Rhode Island Sound- 1004 AM EDT Thu Jul 25 2024 .THIS AFTERNOON...SW winds 5 to 10 kt, increasing to 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Wave Detail: S 3 ft at 7 seconds and SW 1 foot at 3 seconds. A slight chance of showers. .TONIGHT...W winds 10 to 15 kt with gusts up to 20 kt, becoming NW after midnight. Seas 2 to 4 ft. Wave Detail: S 4 ft at 7 seconds and SW 1 foot at 3 seconds. .FRI...NW winds 5 to 10 kt, becoming W in the afternoon. Seas 2 to 3 ft. Wave Detail: S 3 ft at 7 seconds and NW 1 foot at 3 seconds. .FRI NIGHT...SW winds 5 to 10 kt, becoming NW after midnight. Seas around 2 ft. Wave Detail: S 2 ft at 7 seconds and W 1 foot at 3 seconds. .SAT...N winds 5 to 10 kt, becoming S in the afternoon. Seas around 2 ft. Wave Detail: S 2 ft at 7 seconds and N 1 foot at 4 seconds. .SAT NIGHT...SW winds around 5 kt. Seas 1 foot or less. Wave Detail: S 1 foot at 6 seconds. .SUN THROUGH MON NIGHT...SW winds 10 to 15 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. $$ ANZ237-260300- Block Island Sound- 1004 AM EDT Thu Jul 25 2024 .THIS AFTERNOON...SW winds 5 to 10 kt, increasing to 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Wave Detail: S 3 ft at 7 seconds and SW 1 foot at 3 seconds. A slight chance of showers. .TONIGHT...W winds 10 to 15 kt with gusts up to 20 kt, becoming NW after midnight. Seas 2 to 3 ft. Wave Detail: S 3 ft at 7 seconds and W 1 foot at 3 seconds. .FRI...NW winds 5 to 10 kt, becoming W in the afternoon. Seas 2 to 3 ft. Wave Detail: S 3 ft at 7 seconds and W 1 foot at 3 seconds. .FRI NIGHT...W winds 5 to 10 kt, becoming NW after midnight. Seas around 2 ft. Wave Detail: S 2 ft at 7 seconds and W 1 foot at 3 seconds. .SAT...N winds around 5 kt, becoming S in the afternoon. Seas around 2 ft in the morning, then 1 foot or less. Wave Detail: S 2 ft at 7 seconds, becoming S 1 foot at 7 seconds. .SAT NIGHT...SW winds around 5 kt. Seas 1 foot or less. Wave Detail: S 1 foot at 7 seconds. .SUN THROUGH MON NIGHT...SW winds 5 to 10 kt. Seas around 2 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ230-260300- Boston Harbor- 1004 AM EDT Thu Jul 25 2024 .THIS AFTERNOON...S winds 5 to 10 kt. Waves 1 foot or less. A chance of showers with a slight chance of tstms. .TONIGHT...W winds around 10 kt. Waves 1 foot or less. .FRI...NW winds around 10 kt, becoming N in the afternoon. Waves 1 foot or less. .FRI NIGHT...SW winds around 5 kt, becoming NW after midnight. Waves 1 foot or less. .SAT...N winds around 5 kt, becoming E in the afternoon. Waves 1 foot or less. .SAT NIGHT...S winds 5 to 10 kt, becoming SW after midnight. Waves 1 foot or less. .SUN THROUGH MON NIGHT...S winds 5 to 10 kt. Waves around 2 ft. 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. $$ ANZ236-260300- Narragansett Bay- 1004 AM EDT Thu Jul 25 2024 .THIS AFTERNOON...SW winds 5 to 10 kt. Waves 2 to 3 ft. A slight chance of tstms. A slight chance of showers, then a chance of showers. .TONIGHT...W winds 5 to 10 kt. Waves 2 to 3 ft. .FRI...NW winds 5 to 10 kt. Waves 2 to 3 ft. .FRI NIGHT...SW winds around 5 kt, becoming NW after midnight. Waves around 2 ft. .SAT...N winds around 5 kt, becoming SE in the afternoon. Waves 1 foot or less. .SAT NIGHT...S winds 5 to 10 kt, becoming SW after midnight. Waves 1 foot or less. .SUN THROUGH MON NIGHT...SW winds 5 to 10 kt. Waves around 2 ft. Winds and waves higher in and near tstms. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ 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