Coastal Waters Forecast
Issued by NWS Boston, MA

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566 FZUS51 KBOX 160805 CWFBOX Coastal Waters Forecast for Massachusetts and Rhode Island National Weather Service Boston/Norton MA 405 AM EDT Sun Jun 16 2024 Coastal waters from the Merrimack River MA to Watch Hill RI out to 25 NM ANZ200-162100- 405 AM EDT Sun Jun 16 2024 .Synopsis for Massachusetts and Rhode Island coastal waters... Tranquil boating conditions continue today as high pressure remains overhead. Winds begin to increase out of the south on Monday with gusts up to 20-25 knots. High pressure remains to the east much of the week with SSW winds. $$ ANZ250-162100- Coastal waters east of Ipswich Bay and the Stellwagen Bank National Marine Sanctuary- 405 AM EDT Sun Jun 16 2024 .TODAY...N winds 10 to 15 kt, becoming E 5 to 10 kt this afternoon. Seas 2 to 4 ft. Wave Detail: N 3 ft at 5 seconds and SE 3 ft at 9 seconds. .TONIGHT...S winds 5 to 10 kt, becoming SW 10 to 15 kt after midnight. Seas 2 to 3 ft. Wave Detail: SW 2 ft at 3 seconds and NE 2 ft at 4 seconds. .MON...S winds 10 to 15 kt, increasing to 15 to 20 kt in the afternoon. Gusts up to 25 kt. Seas 2 to 4 ft. Wave Detail: S 4 ft at 4 seconds and SE 2 ft at 8 seconds. .MON NIGHT...S winds 15 to 20 kt, becoming SW 10 to 15 kt after midnight. Gusts up to 25 kt. Seas 2 to 4 ft. Wave Detail: SW 3 ft at 4 seconds and SE 2 ft at 7 seconds. .TUE AND TUE NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. Wave Detail: SW 3 ft at 4 seconds and SE 2 ft at 12 seconds. .WED THROUGH THU NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Wave Detail: SW 3 ft at 4 seconds and SE 2 ft at 11 seconds. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ251-162100- Massachusetts Bay and Ipswich Bay- 405 AM EDT Sun Jun 16 2024 .TODAY...N winds 5 to 10 kt, becoming E this afternoon. Seas 2 to 3 ft. Wave Detail: N 2 ft at 4 seconds and E 2 ft at 9 seconds. .TONIGHT...S winds 5 to 10 kt. Seas around 2 ft. Wave Detail: NE 2 ft at 5 seconds and E 2 ft at 8 seconds. .MON...S winds 10 to 15 kt. Gusts up to 20 kt in the afternoon. Seas 2 to 3 ft. Wave Detail: S 3 ft at 4 seconds and SE 2 ft at 8 seconds. .MON NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Wave Detail: SE 3 ft at 5 seconds and W 1 foot at 3 seconds. .TUE AND TUE NIGHT...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 E 2 ft at 11 seconds. .WED THROUGH THU NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Wave Detail: S 2 ft at 3 seconds and W 1 foot at 3 seconds. 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. $$ ANZ231-162100- Cape Cod Bay- 405 AM EDT Sun Jun 16 2024 .TODAY...N winds 10 to 15 kt, becoming NE 5 to 10 kt this afternoon. Seas 2 to 3 ft. Wave Detail: N 2 ft at 4 seconds and SE 2 ft at 9 seconds. .TONIGHT...S winds 5 to 10 kt, becoming SW after midnight. Seas around 2 ft in the evening, then 1 foot or less. Wave Detail: N 2 ft at 5 seconds and SE 2 ft at 8 seconds, becoming S 1 foot at 2 seconds and N 1 foot at 5 seconds. .MON...S winds 5 to 10 kt, increasing to 10 to 15 kt with gusts up to 20 kt in the afternoon. Seas 1 foot or less, then around 2 ft in the afternoon. Wave Detail: S 1 foot at 2 seconds and N 1 foot at 4 seconds, becoming S 2 ft at 3 seconds and N 1 foot at 4 seconds. .MON NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft. Wave Detail: S 2 ft at 3 seconds and E 1 foot at 4 seconds. .TUE AND TUE NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft. Wave Detail: SW 1 foot at 3 seconds and S 1 foot at 7 seconds. .WED THROUGH THU NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft. Wave Detail: SW 2 ft at 3 seconds and SE 1 foot at 11 seconds. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ254-162100- Coastal waters from Provincetown MA to Chatham MA to Nantucket MA out 20 nm- 405 AM EDT Sun Jun 16 2024 .TODAY...N winds 10 to 15 kt, becoming NE 5 to 10 kt this afternoon. Seas 3 to 4 ft. Wave Detail: SE 4 ft at 9 seconds and N 2 ft at 4 seconds. .TONIGHT...SE winds 5 to 10 kt, becoming S after midnight. Seas 2 to 3 ft. Wave Detail: SE 3 ft at 8 seconds and N 2 ft at 5 seconds. .MON...S winds 10 to 15 kt. Gusts up to 20 kt in the afternoon. Seas 2 to 3 ft. Wave Detail: S 3 ft at 4 seconds and SE 2 ft at 8 seconds. .MON NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas around 3 ft. Wave Detail: SW 3 ft at 4 seconds and SE 2 ft at 12 seconds. .TUE AND TUE NIGHT...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 SE 2 ft at 12 seconds. .WED THROUGH THU NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. Wave Detail: SW 3 ft at 4 seconds and SE 2 ft at 11 seconds. 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. $$ ANZ255-162100- Coastal Waters extending out to 25 nm South of Marthas Vineyard and Nantucket- 405 AM EDT Sun Jun 16 2024 .TODAY...NE winds 10 to 15 kt, becoming E 5 to 10 kt this afternoon. Seas 2 to 4 ft. Wave Detail: SE 4 ft at 9 seconds and N 1 foot at 3 seconds. .TONIGHT...SE winds 5 to 10 kt, becoming S after midnight. Seas 2 to 3 ft. Wave Detail: SE 3 ft at 8 seconds and NE 1 foot at 4 seconds. .MON...S winds 5 to 10 kt, increasing to 10 to 15 kt with gusts up to 20 kt in the afternoon. Seas 2 to 3 ft. Wave Detail: SE 3 ft at 5 seconds and SE 1 foot at 12 seconds. .MON NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Wave Detail: S 3 ft at 4 seconds and S 2 ft at 7 seconds. .TUE AND TUE NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Wave Detail: SW 3 ft at 5 seconds and SE 2 ft at 12 seconds. .WED THROUGH THU NIGHT...SW winds 15 to 20 kt. Seas 2 to 4 ft. Wave Detail: SW 3 ft at 4 seconds and SE 2 ft at 11 seconds. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ256-162100- Coastal Waters from Montauk NY to Marthas Vineyard extending out to 20 nm South of Block Island- 405 AM EDT Sun Jun 16 2024 .TODAY...NE winds 10 to 15 kt, becoming E 5 to 10 kt this afternoon. Seas 3 to 4 ft. Wave Detail: SE 4 ft at 9 seconds and NE 2 ft at 3 seconds. .TONIGHT...S winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: SE 3 ft at 8 seconds and NE 1 foot at 3 seconds. .MON...S winds 10 to 15 kt. Gusts up to 20 kt in the afternoon. Seas 2 to 3 ft. Wave Detail: S 3 ft at 4 seconds and SE 2 ft at 8 seconds. .MON NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Wave Detail: S 3 ft at 4 seconds and S 2 ft at 7 seconds. .TUE AND TUE NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Wave Detail: S 3 ft at 6 seconds and SE 2 ft at 12 seconds. .WED THROUGH THU NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. Wave Detail: SW 3 ft at 4 seconds and SE 2 ft at 10 seconds. 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. $$ ANZ232-162100- Nantucket Sound- 405 AM EDT Sun Jun 16 2024 .TODAY...N winds 10 to 15 kt, becoming E 5 to 10 kt this afternoon. Seas 2 to 3 ft. Wave Detail: N 2 ft at 4 seconds and SE 2 ft at 9 seconds. .TONIGHT...SE winds 5 to 10 kt, becoming S after midnight. Seas around 2 ft. Wave Detail: S 1 foot at 2 seconds and N 1 foot at 4 seconds. .MON...S winds 10 to 15 kt. Gusts up to 20 kt in the afternoon. Seas around 2 ft. Wave Detail: SE 2 ft at 5 seconds and N 1 foot at 4 seconds. .MON NIGHT...SW winds around 15 kt with gusts up to 20 kt. Seas around 2 ft. Wave Detail: SW 2 ft at 4 seconds and NE 1 foot at 4 seconds. .TUE AND TUE NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft. Wave Detail: SW 2 ft at 4 seconds and S 1 foot at 7 seconds. .WED THROUGH THU NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Wave Detail: SW 2 ft at 3 seconds and SE 1 foot at 11 seconds. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ233-162100- Vineyard Sound- 405 AM EDT Sun Jun 16 2024 .TODAY...NE winds 5 to 10 kt, becoming E this afternoon. Seas around 2 ft. Wave Detail: S 2 ft at 9 seconds and N 1 foot at 3 seconds. .TONIGHT...S winds 5 to 10 kt. Seas around 2 ft. Wave Detail: S 2 ft at 8 seconds and S 1 foot at 2 seconds. .MON...S winds 5 to 10 kt, increasing to 10 to 15 kt with gusts up to 20 kt in the afternoon. Seas 1 foot or less, then around 2 ft in the afternoon. Wave Detail: S 1 foot at 3 seconds and NE 1 foot at 5 seconds, becoming S 2 ft at 4 seconds and NE 1 foot at 5 seconds. .MON NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft. Wave Detail: SW 2 ft at 4 seconds and SE 1 foot at 7 seconds. .TUE AND TUE NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft. Wave Detail: SW 2 ft at 4 seconds and S 1 foot at 7 seconds. .WED THROUGH THU NIGHT...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 SE 1 foot at 11 seconds. 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. $$ ANZ234-162100- Buzzards Bay- 405 AM EDT Sun Jun 16 2024 .TODAY...NE winds 5 to 10 kt, becoming E this afternoon. Seas around 2 ft. Wave Detail: S 2 ft at 9 seconds and N 1 foot at 3 seconds. .TONIGHT...S winds 5 to 10 kt. Seas 1 foot or less. Wave Detail: S 1 foot at 2 seconds and NE 1 foot at 4 seconds. .MON...S winds 5 to 10 kt, increasing to 10 to 15 kt with gusts up to 20 kt in the afternoon. Seas 1 foot or less, then around 2 ft in the afternoon. Wave Detail: SW 1 foot at 3 seconds and NE 1 foot at 5 seconds, becoming S 2 ft at 3 seconds and NE 1 foot at 5 seconds. .MON NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft. Wave Detail: SW 2 ft at 4 seconds and NE 1 foot at 4 seconds. .TUE AND TUE NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft. Wave Detail: SW 2 ft at 4 seconds and S 1 foot at 7 seconds. .WED THROUGH THU NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft. Wave Detail: SW 2 ft at 5 seconds and W 1 foot at 3 seconds. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ235-162100- Rhode Island Sound- 405 AM EDT Sun Jun 16 2024 .TODAY...NE winds 10 to 15 kt, becoming SE 5 to 10 kt this afternoon. Seas 2 to 3 ft. Wave Detail: SE 3 ft at 9 seconds and N 1 foot at 3 seconds. .TONIGHT...S winds 5 to 10 kt. Seas around 2 ft. Wave Detail: SE 2 ft at 8 seconds and S 1 foot at 2 seconds. .MON...S winds 10 to 15 kt. Gusts up to 20 kt in the afternoon. Seas around 2 ft. Wave Detail: S 2 ft at 4 seconds and SE 2 ft at 7 seconds. .MON NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft. Wave Detail: S 2 ft at 4 seconds and SE 2 ft at 7 seconds. .TUE AND TUE NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Wave Detail: S 3 ft at 6 seconds and SE 2 ft at 12 seconds. .WED THROUGH THU NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Wave Detail: SW 3 ft at 5 seconds and S 3 ft at 8 seconds. 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. $$ ANZ237-162100- Block Island Sound- 405 AM EDT Sun Jun 16 2024 .TODAY...NE winds 10 to 15 kt, becoming SE 5 to 10 kt this afternoon. Seas 2 to 3 ft. Wave Detail: SE 3 ft at 9 seconds and NE 2 ft at 3 seconds. .TONIGHT...S winds 5 to 10 kt. Seas around 2 ft. Wave Detail: SE 2 ft at 8 seconds and SE 1 foot at 3 seconds. .MON...S winds 5 to 10 kt, increasing to 10 to 15 kt with gusts up to 20 kt in the afternoon. Seas around 2 ft. Wave Detail: S 2 ft at 4 seconds and SE 2 ft at 7 seconds. .MON NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Wave Detail: SW 2 ft at 4 seconds and SE 1 foot at 7 seconds. .TUE AND TUE NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Wave Detail: S 2 ft at 6 seconds and SE 2 ft at 12 seconds. .WED THROUGH THU NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Wave Detail: SW 2 ft at 5 seconds and SE 2 ft at 10 seconds. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ230-162100- Boston Harbor- 405 AM EDT Sun Jun 16 2024 .TODAY...N winds 5 to 10 kt, becoming E this afternoon. Waves 1 foot or less. .TONIGHT...SE winds 5 to 10 kt, becoming SW after midnight. Waves 1 foot or less. .MON...S winds 5 to 10 kt, increasing to 10 to 15 kt with gusts up to 20 kt in the afternoon. Waves 1 foot or less, then around 2 ft in the afternoon. .MON NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Waves around 2 ft. .TUE AND TUE NIGHT...SW winds 5 to 10 kt. Waves around 2 ft. .WED THROUGH THU 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. $$ ANZ236-162100- Narragansett Bay- 405 AM EDT Sun Jun 16 2024 .TODAY...N winds 5 to 10 kt, becoming SE this afternoon. Waves 2 to 3 ft. .TONIGHT...S winds 5 to 10 kt. Waves around 2 ft. .MON...S winds 5 to 10 kt, increasing to 10 to 15 kt with gusts up to 20 kt in the afternoon. Waves around 2 ft. .MON NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Waves around 2 ft. .TUE AND TUE NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Waves around 2 ft. .WED THROUGH THU NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Waves 2 to 3 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ For the latest updates...please visit our webpage at www.weather.gov/boston You can follow us on Facebook at www.facebook.com/NWSBoston You can follow us on Twitter at @NWSBoston