Coastal Waters Forecast
Issued by NWS Boston, MA

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375 FZUS51 KBOX 131105 CWFBOX Coastal Waters Forecast for Massachusetts and Rhode Island National Weather Service Boston/Norton MA 704 AM EDT Thu Jun 13 2024 Coastal waters from the Merrimack River MA to Watch Hill RI out to 25 NM ANZ200-140000- 704 AM EDT Thu Jun 13 2024 .Synopsis for Massachusetts and Rhode Island coastal waters... High pressure will remain over the waters through Thu. Winds become gusty out of the SW Thursday, before a cold front over the Great Lakes is expected to cross the region Fri. Showers and Thunderstorms will accompany the cold front. A tropical low may track well southeast of New England Saturday, across Georges Bank and then south of Nova Scotia. High pressure then builds across the waters Sunday and Monday. $$ ANZ250-140000- Coastal waters east of Ipswich Bay and the Stellwagen Bank National Marine Sanctuary- 704 AM EDT Thu Jun 13 2024 .TODAY...SW winds 5 to 10 kt, becoming S 10 to 15 kt with gusts up to 20 kt this afternoon. Seas 2 to 3 ft. Wave Detail: SW 2 ft at 3 seconds and SE 2 ft at 8 seconds. .TONIGHT...SW winds around 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. Wave Detail: SW 3 ft at 4 seconds and SE 3 ft at 7 seconds. .FRI...S winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to 4 ft. Wave Detail: SW 3 ft at 4 seconds and SE 3 ft at 7 seconds. Scattered showers in the afternoon. .FRI NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt, becoming W after midnight. Seas 2 to 4 ft. Wave Detail: SW 3 ft at 4 seconds and SE 3 ft at 7 seconds. Showers likely, mainly in the evening. Vsby 1 to 3 NM. .SAT...N winds around 10 kt with gusts up to 20 kt. Seas 2 to 3 ft. Wave Detail: N 2 ft at 4 seconds and SE 2 ft at 8 seconds. A chance of showers in the morning. .SAT NIGHT...NW winds 5 to 10 kt, becoming N 10 to 15 kt with gusts up to 20 kt after midnight. Seas 2 to 3 ft. Wave Detail: N 2 ft at 5 seconds and SE 2 ft at 9 seconds. .SUN THROUGH MON NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ251-140000- Massachusetts Bay and Ipswich Bay- 704 AM EDT Thu Jun 13 2024 .TODAY...SW winds around 5 kt, becoming S 10 to 15 kt with gusts up to 20 kt this afternoon. Seas 1 foot or less, then around 2 ft this afternoon. Wave Detail: SW 1 foot at 2 seconds and E 1 foot at 8 seconds, becoming SE 2 ft at 8 seconds and SW 1 foot at 2 seconds. .TONIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Wave Detail: SE 3 ft at 6 seconds and S 2 ft at 3 seconds. .FRI...S winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Wave Detail: SE 3 ft at 6 seconds and SW 2 ft at 3 seconds. Scattered showers in the afternoon. .FRI NIGHT...W winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: SW 2 ft at 3 seconds and SE 2 ft at 7 seconds. Showers likely, mainly in the evening. Vsby 1 to 3 NM. .SAT...N winds around 10 kt with gusts up to 20 kt. Seas around 2 ft. Wave Detail: N 2 ft at 3 seconds and E 2 ft at 8 seconds. A chance of showers. .SAT NIGHT...NW winds 5 to 10 kt, becoming N 10 to 15 kt with gusts up to 20 kt after midnight. Seas around 2 ft. Wave Detail: N 2 ft at 5 seconds and E 1 foot at 8 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. $$ ANZ231-140000- Cape Cod Bay- 704 AM EDT Thu Jun 13 2024 .TODAY...SW winds 5 to 10 kt, becoming S 10 to 15 kt with gusts up to 20 kt this afternoon. Seas 1 foot or less, then around 2 ft this afternoon. Wave Detail: SW 1 foot at 2 seconds and SE 1 foot at 8 seconds. .TONIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Wave Detail: SW 2 ft at 3 seconds and SE 2 ft at 7 seconds. .FRI...SW winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 3 ft. Wave Detail: SW 2 ft at 3 seconds and SE 2 ft at 7 seconds. .FRI NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt, becoming W 5 to 10 kt after midnight. Seas 2 to 3 ft. Wave Detail: SW 2 ft at 3 seconds and SE 2 ft at 6 seconds. A chance of showers. .SAT...N winds 5 to 10 kt with gusts up to 20 kt. Seas around 2 ft. Wave Detail: N 1 foot at 3 seconds and SE 1 foot at 7 seconds. A chance of showers. .SAT NIGHT...N winds 5 to 10 kt. Gusts up to 20 kt after midnight. Seas around 2 ft. Wave Detail: N 2 ft at 5 seconds and SE 1 foot at 8 seconds. .SUN THROUGH MON NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ254-140000- Coastal waters from Provincetown MA to Chatham MA to Nantucket MA out 20 nm- 704 AM EDT Thu Jun 13 2024 .TODAY...SW winds 5 to 10 kt, increasing to 10 to 15 kt with gusts up to 20 kt this afternoon. Seas 2 to 3 ft. Wave Detail: SW 2 ft at 3 seconds and SE 2 ft at 8 seconds. .TONIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 4 ft. Wave Detail: SW 3 ft at 4 seconds and SE 3 ft at 8 seconds. .FRI...S winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 4 ft. Wave Detail: SW 3 ft at 4 seconds and SE 3 ft at 8 seconds. Patchy fog. Vsby 1 NM or less, increasing to 1 to 3 NM in the afternoon. .FRI NIGHT...S winds around 10 kt with gusts up to 20 kt, becoming W after midnight. Seas 2 to 4 ft. Wave Detail: SE 3 ft at 8 seconds and SW 2 ft at 4 seconds. A chance of showers. Patchy fog in the evening with vsby 1 NM or less. .SAT...N winds 5 to 10 kt, increasing to 10 to 15 kt with gusts up to 20 kt in the afternoon. Seas 2 to 4 ft. Wave Detail: N 2 ft at 4 seconds and SE 2 ft at 7 seconds. A chance of showers in the morning. .SAT NIGHT...N winds 5 to 10 kt. Gusts up to 20 kt after midnight. Seas 3 to 4 ft. Wave Detail: SE 3 ft at 8 seconds and N 2 ft at 5 seconds. .SUN THROUGH MON NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 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. $$ ANZ255-140000- Coastal Waters extending out to 25 nm South of Marthas Vineyard and Nantucket- 704 AM EDT Thu Jun 13 2024 .TODAY...SW winds 5 to 10 kt, increasing to 10 to 15 kt with gusts up to 20 kt this afternoon. Seas 2 to 3 ft. Wave Detail: SW 2 ft at 4 seconds and SE 2 ft at 7 seconds. .TONIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Wave Detail: SW 3 ft at 4 seconds and S 3 ft at 8 seconds. .FRI...S winds 10 to 15 kt. Seas around 3 ft. Wave Detail: S 3 ft at 6 seconds. Patchy fog in the afternoon with vsby 1 to 3 NM. .FRI NIGHT...S winds around 10 kt, becoming W after midnight. Seas 2 to 3 ft. Wave Detail: SW 3 ft at 4 seconds and SE 2 ft at 7 seconds. A chance of showers. Patchy fog in the evening with vsby 1 NM or less. .SAT...N winds 10 to 15 kt. Gusts up to 20 kt in the afternoon. Seas 2 to 4 ft. Wave Detail: S 3 ft at 8 seconds and NW 2 ft at 4 seconds. A chance of showers in the morning. .SAT NIGHT...N winds 10 to 15 kt. Seas 3 to 4 ft. Wave Detail: SE 4 ft at 8 seconds and N 2 ft at 4 seconds. .SUN AND SUN NIGHT...NE winds 10 to 15 kt, becoming S 5 to 10 kt. Seas 2 to 4 ft. .MON AND MON NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ256-140000- Coastal Waters from Montauk NY to Marthas Vineyard extending out to 20 nm South of Block Island- 704 AM EDT Thu Jun 13 2024 .TODAY...SW winds 5 to 10 kt. Gusts up to 20 kt this afternoon. Seas 2 to 3 ft. Wave Detail: SW 2 ft at 4 seconds and SE 2 ft at 7 seconds. .TONIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 4 ft. Wave Detail: SW 3 ft at 5 seconds and SE 3 ft at 8 seconds. .FRI...S winds 10 to 15 kt. Seas 3 to 4 ft. Wave Detail: SW 3 ft at 5 seconds and SE 2 ft at 8 seconds. .FRI NIGHT...S winds around 10 kt, becoming W after midnight. Seas 2 to 4 ft. Wave Detail: S 3 ft at 4 seconds and SE 2 ft at 8 seconds. A chance of showers. Vsby 1 to 3 NM in the evening. .SAT...N winds around 10 kt. Seas 2 to 4 ft. Wave Detail: S 3 ft at 8 seconds and N 2 ft at 4 seconds. A chance of showers in the morning. .SAT NIGHT...N winds 5 to 10 kt. Seas 3 to 4 ft. Wave Detail: SE 4 ft at 8 seconds and N 1 foot at 3 seconds. .SUN THROUGH MON NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 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. $$ ANZ232-140000- Nantucket Sound- 704 AM EDT Thu Jun 13 2024 .TODAY...SW winds 5 to 10 kt, increasing to 10 to 15 kt with gusts up to 20 kt this afternoon. Seas around 2 ft. Wave Detail: SW 2 ft at 3 seconds and SE 1 foot at 7 seconds. .TONIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Wave Detail: SW 2 ft at 3 seconds and SE 1 foot at 8 seconds. .FRI...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Wave Detail: SW 2 ft at 4 seconds and S 1 foot at 7 seconds. .FRI NIGHT...SW winds around 10 kt, becoming W after midnight. Seas 2 to 3 ft. Wave Detail: SW 2 ft at 4 seconds and SE 1 foot at 7 seconds. A chance of showers. Vsby 1 to 3 NM in the evening. .SAT...N winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft. Wave Detail: N 2 ft at 4 seconds and SE 1 foot at 8 seconds. A chance of showers in the morning. .SAT NIGHT...N winds 5 to 10 kt. Seas around 2 ft. Wave Detail: N 1 foot at 4 seconds and SE 1 foot at 8 seconds. .SUN THROUGH MON NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ233-140000- Vineyard Sound- 704 AM EDT Thu Jun 13 2024 .TODAY...SW winds 5 to 10 kt. Gusts up to 20 kt this afternoon. Seas 1 foot or less, then around 2 ft this afternoon. Wave Detail: SW 1 foot at 4 seconds and S 1 foot at 7 seconds, becoming SW 2 ft at 3 seconds and S 1 foot at 8 seconds. .TONIGHT...SW winds around 10 kt. Gusts up to 20 kt in the evening. Seas around 2 ft. Wave Detail: SW 2 ft at 4 seconds and S 1 foot at 8 seconds. .FRI...SW winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 4 ft. Wave Detail: S 2 ft at 6 seconds. .FRI NIGHT...SW winds 5 to 10 kt, becoming W after midnight. Seas 2 to 3 ft. Wave Detail: S 2 ft at 6 seconds. A chance of showers. .SAT...N winds 5 to 10 kt. Gusts up to 20 kt in the afternoon. Seas around 2 ft. Wave Detail: N 1 foot at 4 seconds and S 1 foot at 8 seconds. A chance of showers in the morning. .SAT NIGHT...N winds 5 to 10 kt. Seas around 2 ft. Wave Detail: S 2 ft at 8 seconds and NE 1 foot at 3 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. $$ ANZ234-140000- Buzzards Bay- 704 AM EDT Thu Jun 13 2024 .TODAY...SW winds 5 to 10 kt. Gusts up to 20 kt this afternoon. Seas 1 foot or less, then around 2 ft this afternoon. Wave Detail: SW 1 foot at 4 seconds and S 1 foot at 7 seconds, becoming SW 2 ft at 3 seconds and S 1 foot at 7 seconds. .TONIGHT...SW winds around 10 kt. Gusts up to 20 kt in the evening. Seas around 2 ft. Wave Detail: SW 2 ft at 4 seconds and S 1 foot at 8 seconds. .FRI...SW winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 4 ft. Wave Detail: SW 2 ft at 4 seconds and S 1 foot at 7 seconds. .FRI NIGHT...SW winds 5 to 10 kt, becoming W after midnight. Seas 2 to 3 ft. Wave Detail: SW 2 ft at 4 seconds and S 1 foot at 7 seconds. A chance of showers. .SAT...N winds 5 to 10 kt. Gusts up to 20 kt in the afternoon. Seas around 2 ft. Wave Detail: N 1 foot at 3 seconds and S 1 foot at 8 seconds. A chance of showers in the morning. .SAT NIGHT...N winds 5 to 10 kt. Seas around 2 ft. Wave Detail: S 2 ft at 9 seconds and NE 1 foot at 3 seconds. .SUN THROUGH MON NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ235-140000- Rhode Island Sound- 704 AM EDT Thu Jun 13 2024 .TODAY...SW winds 5 to 10 kt. Gusts up to 20 kt this afternoon. Seas 2 to 3 ft. Wave Detail: SW 2 ft at 4 seconds and S 2 ft at 7 seconds. .TONIGHT...SW winds around 10 kt. Gusts up to 20 kt in the evening. Seas 2 to 3 ft. Wave Detail: SW 3 ft at 5 seconds and SE 2 ft at 8 seconds. .FRI...SW winds 10 to 15 kt. Gusts up to 20 kt in the afternoon. Seas 2 to 3 ft. Wave Detail: S 3 ft at 6 seconds. .FRI NIGHT...SW winds 5 to 10 kt, becoming W after midnight. Seas 2 to 3 ft. Wave Detail: SW 3 ft at 4 seconds and SE 2 ft at 7 seconds. A chance of showers. .SAT...N winds around 10 kt. Seas 2 to 3 ft. Wave Detail: S 2 ft at 8 seconds and N 1 foot at 2 seconds. A chance of showers in the morning. .SAT NIGHT...N winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: S 3 ft at 8 seconds and NE 1 foot at 3 seconds. .SUN THROUGH MON NIGHT...SW 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. $$ ANZ237-140000- Block Island Sound- 704 AM EDT Thu Jun 13 2024 .TODAY...SW winds 5 to 10 kt. Gusts up to 20 kt this afternoon. Seas around 2 ft. Wave Detail: SW 2 ft at 3 seconds and S 2 ft at 7 seconds. .TONIGHT...SW winds around 10 kt with gusts up to 20 kt. Seas 2 to 3 ft. Wave Detail: SW 2 ft at 4 seconds and S 2 ft at 8 seconds. .FRI...SW winds 10 to 15 kt. Gusts up to 20 kt in the afternoon. Seas 2 to 3 ft. Wave Detail: S 3 ft at 6 seconds. .FRI NIGHT...SW winds 5 to 10 kt, becoming NW after midnight. Seas 2 to 3 ft. Wave Detail: SW 2 ft at 4 seconds and SE 2 ft at 7 seconds. Showers likely, mainly in the evening with vsby 1 to 3 NM. .SAT...N winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: SE 2 ft at 8 seconds and W 1 foot at 5 seconds. A chance of showers in the afternoon. .SAT NIGHT...N winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: S 3 ft at 8 seconds and N 1 foot at 3 seconds. .SUN THROUGH MON NIGHT...SW winds 5 to 10 kt with gusts up to 20 kt. Seas 2 to 3 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ230-140000- Boston Harbor- 704 AM EDT Thu Jun 13 2024 .TODAY...SW winds 5 to 10 kt. Waves 1 foot or less. .TONIGHT...SW winds around 10 kt. Waves around 2 ft. .FRI...SW winds around 10 kt with gusts up to 20 kt. Waves around 2 ft. Scattered showers in the afternoon. .FRI NIGHT...W winds 5 to 10 kt. Waves around 2 ft in the evening, then 1 foot or less. Showers. Vsby 1 to 3 NM. .SAT...N winds around 10 kt. Waves around 2 ft. A chance of showers. .SAT NIGHT...NW winds 5 to 10 kt. Waves 1 foot or less, then around 2 ft after midnight. .SUN THROUGH MON NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Waves 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. $$ ANZ236-140000- Narragansett Bay- 704 AM EDT Thu Jun 13 2024 .TODAY...SW winds 5 to 10 kt. Gusts up to 20 kt this afternoon. Waves 1 foot or less, then around 2 ft this afternoon. .TONIGHT...SW winds 5 to 10 kt. Gusts up to 20 kt in the evening. Waves around 2 ft. .FRI...SW winds 10 to 15 kt with gusts up to 20 kt. Waves 2 to 3 ft. .FRI NIGHT...SW winds 5 to 10 kt, becoming NW after midnight. Waves 2 to 3 ft. Showers likely, mainly in the evening with vsby 1 to 3 NM. .SAT...N winds 5 to 10 kt. Waves around 2 ft. A chance of showers. .SAT NIGHT...N winds 5 to 10 kt. Waves around 2 ft in the evening, then 1 foot or less. .SUN THROUGH MON NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Waves around 2 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ 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