Coastal Waters Forecast
Issued by NWS Boston, MA

Current Version |  Previous Version |  Graphics & Text |  Print | Product List |  Glossary On
Versions: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50
488 FZUS51 KBOX 081704 CWFBOX Coastal Waters Forecast for Massachusetts and Rhode Island National Weather Service Boston/Norton MA 104 PM EDT Sat Jun 8 2024 Coastal waters from the Merrimack River MA to Watch Hill RI out to 25 NM ANZ200-090600- 104 PM EDT Sat Jun 8 2024 .Synopsis for Massachusetts and Rhode Island coastal waters... Gusty W winds today behind a cold front which moves well E of the waters. Weak low pres moves across the waters Sun followed by a weak cold front on Mon. Weak low pres will be over the waters Tue. Weak high pres builds in on Wed. $$ ANZ250-090600- Coastal waters east of Ipswich Bay and the Stellwagen Bank National Marine Sanctuary- 104 PM EDT Sat Jun 8 2024 .THIS AFTERNOON...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Wave Detail: SE 3 ft at 8 seconds and W 2 ft at 3 seconds. .TONIGHT...W winds 10 to 15 kt. Gusts up to 20 kt after midnight. Seas 2 to 3 ft. Wave Detail: W 2 ft at 3 seconds and SE 2 ft at 8 seconds. .SUN...SW winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: W 2 ft at 4 seconds and SE 2 ft at 8 seconds. Showers likely. .SUN NIGHT...W winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: W 2 ft at 3 seconds and SE 2 ft at 8 seconds. .MON...SW winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: W 2 ft at 3 seconds and SE 2 ft at 8 seconds. .MON NIGHT...SW winds 5 to 10 kt, becoming W after midnight. Seas around 2 ft. Wave Detail: SE 2 ft at 7 seconds and W 1 foot at 3 seconds. .TUE THROUGH WED NIGHT...S winds 5 to 10 kt. Seas around 2 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ251-090600- Massachusetts Bay and Ipswich Bay- 104 PM EDT Sat Jun 8 2024 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 7 PM EDT THIS EVENING... .THIS AFTERNOON...W winds 10 to 15 kt with gusts up to 25 kt. Seas around 2 ft. Wave Detail: W 2 ft at 3 seconds and E 2 ft at 8 seconds. A slight chance of showers. .TONIGHT...W winds 10 to 15 kt. Gusts up to 20 kt in the evening. Seas around 2 ft. Wave Detail: W 2 ft at 3 seconds and E 2 ft at 9 seconds. .SUN...SW winds around 10 kt. Seas around 2 ft. Wave Detail: SW 2 ft at 3 seconds and E 1 foot at 9 seconds. Showers likely. .SUN NIGHT...W winds around 10 kt. Seas around 2 ft. Wave Detail: W 2 ft at 3 seconds and E 1 foot at 8 seconds. A chance of showers in the evening. .MON...SW winds 5 to 10 kt. Seas around 2 ft in the morning, then 1 foot or less. Wave Detail: W 1 foot at 3 seconds and E 1 foot at 8 seconds, becoming SW 1 foot at 3 seconds and E 1 foot at 8 seconds. .MON NIGHT...W winds 5 to 10 kt. Seas 1 foot or less. Wave Detail: W 1 foot at 2 seconds and E 1 foot at 8 seconds. .TUE THROUGH WED NIGHT...S winds 5 to 10 kt. Seas 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. $$ ANZ231-090600- Cape Cod Bay- 104 PM EDT Sat Jun 8 2024 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 7 PM EDT THIS EVENING... .THIS AFTERNOON...SW winds 10 to 15 kt with gusts up to 25 kt. Seas around 2 ft. Wave Detail: W 1 foot at 3 seconds and SE 1 foot at 7 seconds. .TONIGHT...W winds around 10 kt. Gusts up to 20 kt in the evening. Seas around 2 ft. Wave Detail: W 1 foot at 3 seconds and SE 1 foot at 7 seconds. .SUN...SW winds around 10 kt. Seas around 2 ft. Wave Detail: SW 1 foot at 3 seconds and SE 1 foot at 8 seconds. A chance of showers. .SUN NIGHT...W winds around 10 kt. Seas around 2 ft. Wave Detail: SW 1 foot at 3 seconds and SE 1 foot at 8 seconds. .MON...SW winds 5 to 10 kt. Seas around 2 ft in the morning, then 1 foot or less. Wave Detail: W 1 foot at 3 seconds and SE 1 foot at 8 seconds, becoming SW 1 foot at 3 seconds and SE 1 foot at 7 seconds. .MON NIGHT...SW winds 5 to 10 kt, becoming W after midnight. Seas 1 foot or less. Wave Detail: SW 1 foot at 2 seconds and SE 1 foot at 7 seconds. .TUE THROUGH WED NIGHT...SW winds 5 to 10 kt. Seas 1 foot or less. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ254-090600- Coastal waters from Provincetown MA to Chatham MA to Nantucket MA out 20 nm- 104 PM EDT Sat Jun 8 2024 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 10 PM EDT THIS EVENING... .THIS AFTERNOON...SW winds 10 to 15 kt with gusts up to 25 kt. Seas 3 to 4 ft. Wave Detail: S 4 ft at 8 seconds and W 3 ft at 4 seconds. .TONIGHT...SW winds 10 to 15 kt. Gusts up to 25 kt in the evening. Seas 3 to 4 ft. Wave Detail: W 3 ft at 4 seconds and S 3 ft at 8 seconds. .SUN...SW 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 SW 2 ft at 4 seconds. A chance of showers in the afternoon. .SUN NIGHT...W winds 10 to 15 kt. Gusts up to 20 kt in the evening. Seas 3 to 4 ft. Wave Detail: S 3 ft at 7 seconds and W 2 ft at 4 seconds. .MON AND MON NIGHT...W winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: S 3 ft at 7 seconds and W 2 ft at 4 seconds. .TUE THROUGH WED NIGHT...SW winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: W 2 ft at 3 seconds and S 2 ft at 7 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. $$ ANZ255-090600- Coastal Waters extending out to 25 nm South of Marthas Vineyard and Nantucket- 104 PM EDT Sat Jun 8 2024 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 10 PM EDT THIS EVENING... .THIS AFTERNOON...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 4 to 5 ft. Wave Detail: S 4 ft at 8 seconds and SW 3 ft at 5 seconds. .TONIGHT...SW winds 15 to 20 kt with gusts up to 25 kt, becoming W 10 to 15 kt after midnight. Seas 3 to 5 ft. Wave Detail: SW 5 ft at 6 seconds. .SUN...SW winds 10 to 15 kt. Gusts up to 20 kt in the afternoon. Seas 3 to 4 ft. Wave Detail: S 4 ft at 6 seconds. A chance of showers in the afternoon. .SUN NIGHT...W winds 10 to 15 kt. Gusts up to 20 kt in the evening. Seas 3 to 4 ft. Wave Detail: S 4 ft at 7 seconds and SW 1 foot at 4 seconds. .MON AND MON NIGHT...W winds 10 to 15 kt. Seas 2 to 4 ft. Wave Detail: SW 4 ft at 7 seconds. .TUE THROUGH WED NIGHT...SW winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: SW 2 ft at 6 seconds. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ256-090600- Coastal Waters from Montauk NY to Marthas Vineyard extending out to 20 nm South of Block Island- 104 PM EDT Sat Jun 8 2024 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 10 PM EDT THIS EVENING... .THIS AFTERNOON...SW winds around 15 kt with gusts up to 25 kt. Seas 4 to 5 ft. Wave Detail: S 4 ft at 8 seconds and W 2 ft at 4 seconds. .TONIGHT...SW winds 10 to 15 kt. Gusts up to 20 kt in the evening. Seas 3 to 5 ft. Wave Detail: SW 4 ft at 6 seconds. .SUN...SW winds 10 to 15 kt. Gusts up to 20 kt in the afternoon. Seas 3 to 4 ft. Wave Detail: S 4 ft at 7 seconds and W 1 foot at 4 seconds. A chance of showers in the afternoon. .SUN NIGHT...W winds 10 to 15 kt. Gusts up to 20 kt in the evening. Seas 3 to 4 ft. Wave Detail: S 4 ft at 7 seconds and W 1 foot at 3 seconds. .MON...W winds 10 to 15 kt. Seas 3 to 4 ft. Wave Detail: SW 4 ft at 7 seconds. .MON NIGHT...SW winds 10 to 15 kt, becoming NW 5 to 10 kt after midnight. Seas 2 to 3 ft. Wave Detail: SW 2 ft at 6 seconds and SE 2 ft at 7 seconds. .TUE THROUGH WED 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. $$ ANZ232-090600- Nantucket Sound- 104 PM EDT Sat Jun 8 2024 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 7 PM EDT THIS EVENING... .THIS AFTERNOON...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 3 ft. Wave Detail: SW 3 ft at 4 seconds and SE 1 foot at 8 seconds. .TONIGHT...W winds 10 to 15 kt. Gusts up to 25 kt in the evening. Seas 2 to 3 ft. Wave Detail: W 3 ft at 4 seconds and SE 1 foot at 8 seconds. .SUN...SW winds 10 to 15 kt. Gusts up to 20 kt in the afternoon. Seas 2 to 3 ft. Wave Detail: SW 2 ft at 3 seconds and SE 1 foot at 8 seconds. A chance of showers. .SUN NIGHT...W winds 10 to 15 kt. Gusts up to 20 kt in the evening. Seas 2 to 3 ft. Wave Detail: W 2 ft at 4 seconds and S 1 foot at 7 seconds. .MON AND MON NIGHT...W winds 10 to 15 kt. Seas around 2 ft. Wave Detail: SW 2 ft at 3 seconds and S 1 foot at 7 seconds. .TUE THROUGH WED NIGHT...SW winds 5 to 10 kt. Seas 1 foot or less. Wave Detail: W 1 foot at 3 seconds and SE 1 foot at 7 seconds. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ233-090600- Vineyard Sound- 104 PM EDT Sat Jun 8 2024 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 7 PM EDT THIS EVENING... .THIS AFTERNOON...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 4 ft. Wave Detail: SW 3 ft at 4 seconds and S 2 ft at 8 seconds. .TONIGHT...W winds 10 to 15 kt. Gusts up to 20 kt in the evening. Seas 2 to 4 ft. Wave Detail: S 3 ft at 7 seconds and SW 2 ft at 4 seconds. .SUN...SW winds 10 to 15 kt. Gusts up to 20 kt in the afternoon. Seas 2 to 3 ft. Wave Detail: SW 2 ft at 4 seconds and S 2 ft at 7 seconds. A chance of showers. .SUN NIGHT...W winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: SW 3 ft at 6 seconds. .MON...SW winds 10 to 15 kt. Seas around 2 ft. Wave Detail: SW 2 ft at 6 seconds. .MON NIGHT...SW winds 10 to 15 kt, becoming NW 5 to 10 kt after midnight. Seas around 2 ft. Wave Detail: S 2 ft at 6 seconds. .TUE THROUGH WED NIGHT...SW winds 5 to 10 kt. Seas 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. $$ ANZ234-090600- Buzzards Bay- 104 PM EDT Sat Jun 8 2024 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 7 PM EDT THIS EVENING... .THIS AFTERNOON...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 4 ft. Wave Detail: SW 3 ft at 4 seconds and S 2 ft at 7 seconds. .TONIGHT...SW winds 10 to 15 kt with gusts up to 20 kt, becoming W 5 to 10 kt after midnight. Seas 2 to 3 ft. Wave Detail: SW 2 ft at 4 seconds and S 2 ft at 7 seconds. .SUN...SW winds 5 to 10 kt, increasing to 10 to 15 kt with gusts up to 20 kt in the afternoon. Seas around 2 ft. Wave Detail: SW 2 ft at 3 seconds and S 2 ft at 7 seconds. A chance of showers. .SUN NIGHT...W winds 10 to 15 kt. Seas around 2 ft. Wave Detail: SW 2 ft at 6 seconds. .MON...SW winds 10 to 15 kt. Gusts up to 20 kt in the afternoon. Seas around 2 ft. Wave Detail: SW 2 ft at 4 seconds and S 2 ft at 7 seconds. .MON NIGHT...SW winds around 10 kt, becoming NW after midnight. Seas around 2 ft. Wave Detail: SW 2 ft at 4 seconds and S 1 foot at 7 seconds. .TUE THROUGH WED NIGHT...SW winds 5 to 10 kt. Seas 1 foot or less. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ235-090600- Rhode Island Sound- 104 PM EDT Sat Jun 8 2024 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 7 PM EDT THIS EVENING... .THIS AFTERNOON...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to 4 ft. Wave Detail: S 4 ft at 8 seconds and SW 3 ft at 4 seconds. .TONIGHT...W winds 10 to 15 kt. Gusts up to 20 kt in the evening. Seas 2 to 4 ft. Wave Detail: S 4 ft at 7 seconds and W 2 ft at 4 seconds. .SUN...SW winds 10 to 15 kt. Gusts up to 20 kt in the afternoon. Seas 2 to 3 ft. Wave Detail: SW 3 ft at 6 seconds. A chance of showers. .SUN NIGHT...W winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: S 3 ft at 7 seconds and W 1 foot at 4 seconds. .MON...SW winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: S 3 ft at 7 seconds and SW 2 ft at 4 seconds. .MON NIGHT...W winds 10 to 15 kt, becoming NW 5 to 10 kt after midnight. Seas 2 to 3 ft. Wave Detail: S 3 ft at 6 seconds. .TUE THROUGH WED 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. $$ ANZ237-090600- Block Island Sound- 104 PM EDT Sat Jun 8 2024 .THIS AFTERNOON...SW winds around 15 kt with gusts up to 25 kt. Seas 2 to 3 ft. Wave Detail: S 3 ft at 8 seconds and W 2 ft at 4 seconds. .TONIGHT...W winds 10 to 15 kt with gusts up to 20 kt, diminishing to 5 to 10 kt after midnight. Seas 2 to 3 ft. Wave Detail: S 3 ft at 7 seconds and W 2 ft at 4 seconds. .SUN...SW winds 5 to 10 kt, increasing to 10 to 15 kt in the afternoon. Seas 2 to 3 ft. Wave Detail: S 3 ft at 7 seconds and SW 1 foot at 3 seconds. A chance of showers. .SUN NIGHT...W winds around 10 kt. Seas 2 to 3 ft. Wave Detail: S 3 ft at 7 seconds and W 1 foot at 3 seconds. .MON...W winds around 10 kt. Seas 2 to 3 ft. Wave Detail: S 3 ft at 7 seconds and W 1 foot at 3 seconds. .MON NIGHT...W winds around 10 kt, becoming NW after midnight. Seas around 2 ft. Wave Detail: S 2 ft at 7 seconds and W 1 foot at 3 seconds. .TUE THROUGH WED NIGHT...SW winds 5 to 10 kt. Seas around 2 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ230-090600- Boston Harbor- 104 PM EDT Sat Jun 8 2024 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 7 PM EDT THIS EVENING... .THIS AFTERNOON...W winds 10 to 15 kt with gusts up to 25 kt. Waves around 2 ft. A slight chance of showers. .TONIGHT...W winds 10 to 15 kt. Gusts up to 20 kt in the evening. Waves around 2 ft in the evening, then 1 foot or less. .SUN...SW winds around 10 kt. Waves 1 foot or less. Showers likely. .SUN NIGHT...W winds around 10 kt. Waves 1 foot or less. A chance of showers in the evening. .MON AND MON NIGHT...NW winds 5 to 10 kt. Waves 1 foot or less. .TUE...N winds 5 to 10 kt. Waves 1 foot or less. A chance of showers. .TUE NIGHT THROUGH WED NIGHT...S 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. $$ ANZ236-090600- Narragansett Bay- 104 PM EDT Sat Jun 8 2024 .THIS AFTERNOON...W winds 10 to 15 kt with gusts up to 20 kt. Waves 2 to 3 ft. .TONIGHT...W winds 5 to 10 kt. Waves around 2 ft. .SUN...SW winds 5 to 10 kt, increasing to 10 to 15 kt in the afternoon. Waves 2 to 3 ft. A chance of showers. .SUN NIGHT...W winds 5 to 10 kt. Waves 2 to 3 ft. A chance of showers in the evening. .MON...W winds 5 to 10 kt. Waves around 2 ft. .MON NIGHT...W winds 5 to 10 kt, becoming NW after midnight. Waves around 2 ft. .TUE THROUGH WED NIGHT...SW winds 5 to 10 kt. Waves around 2 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ 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