Coastal Waters Forecast
Issued by NWS Boston, MA

Current Version |  Previous Version |  Graphics & Text |  Print | Product List |  Glossary Off
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
563 FZUS51 KBOX 040504 CWFBOX Coastal Waters Forecast for Massachusetts and Rhode Island National Weather Service Boston/Norton MA 104 AM EDT Tue Jun 4 2024 Coastal waters from the Merrimack River MA to Watch Hill RI out to 25 NM ANZ200-041800- 104 AM EDT Tue Jun 4 2024 .Synopsis for Massachusetts and Rhode Island coastal waters... A backdoor cold front will drop south across the waters this evening, then dissipate south of New England overnight. Weak high pressure will build over the waters Tue. Low pressure over the Ohio Valley will reach southern New England Thu, then stall over the area Fri and Sat. $$ ANZ250-041800- Coastal waters east of Ipswich Bay and the Stellwagen Bank National Marine Sanctuary- 104 AM EDT Tue Jun 4 2024 .REST OF TONIGHT...E winds around 5 kt. Seas around 2 ft. Wave Detail: E 2 ft at 3 seconds and E 1 foot at 9 seconds. .TUE...E winds around 5 kt. Seas around 2 ft in the morning, then 1 foot or less. Wave Detail: E 1 foot at 4 seconds and S 1 foot at 5 seconds, becoming E 1 foot at 3 seconds and E 1 foot at 9 seconds. .TUE NIGHT...S winds 5 to 10 kt. Seas around 2 ft. Wave Detail: S 1 foot at 3 seconds and E 1 foot at 4 seconds. .WED...S winds 5 to 10 kt. Seas around 2 ft. Wave Detail: S 2 ft at 3 seconds and NE 1 foot at 4 seconds. .WED NIGHT...S winds 10 to 15 kt. Gusts up to 20 kt in the evening. Seas 2 to 3 ft. Wave Detail: SE 2 ft at 3 seconds and E 1 foot at 8 seconds. .THU AND THU NIGHT...E winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. Wave Detail: SE 2 ft at 4 seconds and E 1 foot at 9 seconds. A chance of showers. .FRI THROUGH SAT NIGHT...S winds around 10 kt. Seas 3 to 5 ft. A chance of showers. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ251-041800- Massachusetts Bay and Ipswich Bay- 104 AM EDT Tue Jun 4 2024 .REST OF TONIGHT...E winds around 5 kt. Seas 1 foot or less. Wave Detail: E 1 foot at 4 seconds and E 1 foot at 9 seconds. .TUE...E winds 5 to 10 kt. Seas 1 foot or less. Wave Detail: E 1 foot at 4 seconds and S 1 foot at 5 seconds. .TUE NIGHT...S winds 5 to 10 kt, becoming SW after midnight. Seas 1 foot or less. Wave Detail: E 1 foot at 4 seconds and E 1 foot at 8 seconds. .WED...S winds 5 to 10 kt. Seas 1 foot or less, then around 2 ft in the afternoon. Wave Detail: S 1 foot at 3 seconds and E 1 foot at 5 seconds, becoming S 1 foot at 3 seconds and E 1 foot at 4 seconds. .WED NIGHT...S winds 10 to 15 kt. Seas around 2 ft. Wave Detail: SE 2 ft at 4 seconds and E 1 foot at 8 seconds. .THU AND THU NIGHT...E winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Wave Detail: SE 2 ft at 4 seconds and E 1 foot at 8 seconds. A chance of showers in the morning, then showers likely through the night. A chance of showers after midnight. .FRI AND FRI NIGHT...E winds around 10 kt. Seas 2 to 4 ft. A chance of showers. .SAT AND SAT NIGHT...E winds around 10 kt, becoming S. Seas 3 to 5 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. $$ ANZ231-041800- Cape Cod Bay- 104 AM EDT Tue Jun 4 2024 .REST OF TONIGHT...E winds around 5 kt. Seas 1 foot or less. Wave Detail: E 1 foot at 2 seconds and S 1 foot at 4 seconds. .TUE...NE winds around 5 kt. Seas 1 foot or less. Wave Detail: E 1 foot at 2 seconds and S 1 foot at 4 seconds. .TUE NIGHT...SE winds around 5 kt, becoming SW after midnight. Seas 1 foot or less. Wave Detail: E 1 foot at 3 seconds and S 1 foot at 4 seconds. Patchy fog after midnight with vsby 1 to 3 NM. .WED...SW winds 5 to 10 kt. Seas 1 foot or less. Wave Detail: S 1 foot at 2 seconds and NE 1 foot at 4 seconds. .WED NIGHT...SW winds around 10 kt. Seas 1 foot or less. Wave Detail: SW 1 foot at 3 seconds and E 1 foot at 4 seconds. .THU...S winds 10 to 15 kt. Gusts up to 20 kt in the afternoon. Seas around 2 ft. Wave Detail: SE 1 foot at 3 seconds and E 1 foot at 8 seconds. A chance of showers in the morning, then showers likely in the afternoon. .THU NIGHT...SE winds 10 to 15 kt, becoming E 5 to 10 kt after midnight. Seas 2 to 3 ft. Showers likely, mainly in the evening. .FRI THROUGH SAT...SE winds 5 to 10 kt. Seas 2 to 3 ft. A chance of showers. .SAT NIGHT...SW winds around 10 kt. Seas 2 to 3 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ254-041800- Coastal waters from Provincetown MA to Chatham MA to Nantucket MA out 20 nm- 104 AM EDT Tue Jun 4 2024 .REST OF TONIGHT...E winds around 5 kt. Seas around 2 ft. Wave Detail: NE 2 ft at 3 seconds and S 1 foot at 6 seconds. .TUE...NE winds 5 to 10 kt. Seas around 2 ft. Wave Detail: NE 1 foot at 4 seconds and S 1 foot at 6 seconds. .TUE NIGHT...SE winds around 5 kt, becoming SW after midnight. Seas around 2 ft. Wave Detail: NE 1 foot at 4 seconds and S 1 foot at 5 seconds. Patchy fog after midnight with vsby 1 NM or less. .WED...SW winds 5 to 10 kt. Seas around 2 ft. Wave Detail: SW 2 ft at 4 seconds and E 2 ft at 8 seconds. Patchy fog in the morning with vsby 1 NM or less. .WED NIGHT...S winds around 10 kt. Seas around 2 ft. Wave Detail: S 2 ft at 4 seconds and E 2 ft at 8 seconds. .THU...S winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. Wave Detail: SE 3 ft at 4 seconds and E 2 ft at 9 seconds. A chance of showers. .THU NIGHT...SE winds 10 to 15 kt. Gusts up to 20 kt in the evening. Seas 3 to 5 ft. A chance of showers. .FRI AND FRI NIGHT...SE winds around 10 kt. Seas 4 to 5 ft. A chance of showers. .SAT AND SAT NIGHT...S winds 10 to 15 kt. Seas 4 to 5 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. $$ ANZ255-041800- Coastal Waters extending out to 25 nm South of Marthas Vineyard and Nantucket- 104 AM EDT Tue Jun 4 2024 .REST OF TONIGHT...E winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: SW 2 ft at 6 seconds and E 1 foot at 3 seconds. .TUE...E winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: S 2 ft at 6 seconds and NE 1 foot at 3 seconds. .TUE NIGHT...SE winds around 5 kt. Seas around 2 ft. Wave Detail: E 1 foot at 3 seconds and SW 1 foot at 5 seconds. Patchy fog after midnight with vsby 1 NM or less. .WED...SW winds 5 to 10 kt, increasing to 10 to 15 kt in the afternoon. Seas around 2 ft. Wave Detail: SW 2 ft at 4 seconds and NE 1 foot at 4 seconds. Patchy fog in the morning with vsby 1 to 3 NM. .WED NIGHT...S winds 10 to 15 kt. Seas around 2 ft. Wave Detail: S 2 ft at 4 seconds and E 1 foot at 8 seconds. A chance of showers after midnight. .THU...SE winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. Wave Detail: SE 3 ft at 4 seconds and E 1 foot at 8 seconds. A chance of showers in the morning, then showers likely in the afternoon. Vsby 1 to 3 NM. .THU NIGHT...SE winds 10 to 15 kt. Gusts up to 20 kt in the evening. Seas 4 to 6 ft. Showers likely, mainly in the evening. .FRI...E winds 10 to 15 kt. Seas 4 to 6 ft. A chance of showers. .FRI NIGHT...SE winds 10 to 15 kt. Seas 3 to 5 ft. A chance of showers. .SAT AND SAT NIGHT...SW winds 10 to 15 kt. Seas 3 to 5 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ256-041800- Coastal Waters from Montauk NY to Marthas Vineyard extending out to 20 nm South of Block Island- 104 AM EDT Tue Jun 4 2024 .REST OF TONIGHT...E winds 5 to 10 kt. Seas around 2 ft. Wave Detail: S 2 ft at 6 seconds and E 1 foot at 2 seconds. .TUE...E winds 5 to 10 kt. Seas around 2 ft. Wave Detail: S 2 ft at 6 seconds and E 1 foot at 3 seconds. .TUE NIGHT...S winds 5 to 10 kt. Seas around 2 ft. Wave Detail: SE 1 foot at 4 seconds and SE 1 foot at 8 seconds. Patchy fog after midnight with vsby 1 to 3 NM. .WED...S winds 5 to 10 kt. Seas 1 foot or less, then around 2 ft in the afternoon. Wave Detail: E 1 foot at 4 seconds and S 1 foot at 7 seconds, becoming SE 2 ft at 7 seconds. Patchy fog in the morning with vsby 1 NM or less. .WED NIGHT...S winds around 10 kt. Seas around 2 ft. Wave Detail: S 2 ft at 5 seconds and E 1 foot at 8 seconds. A chance of showers after midnight. .THU...SE winds 10 to 15 kt. Gusts up to 20 kt in the afternoon. Seas 2 to 4 ft. Wave Detail: S 3 ft at 5 seconds and E 1 foot at 8 seconds. A chance of showers in the morning. Showers likely in the afternoon. Vsby 1 to 3 NM. .THU NIGHT...SE winds 10 to 15 kt with gusts up to 20 kt, becoming N after midnight. Seas 4 to 6 ft. A chance of showers. .FRI THROUGH SAT...SW winds 10 to 15 kt. Seas 4 to 5 ft. A chance of showers. .SAT NIGHT...SW winds 10 to 15 kt. Seas 3 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. $$ ANZ232-041800- Nantucket Sound- 104 AM EDT Tue Jun 4 2024 .REST OF TONIGHT...E winds 5 to 10 kt. Seas around 2 ft. Wave Detail: E 1 foot at 3 seconds and SW 1 foot at 5 seconds. .TUE...E winds 5 to 10 kt. Seas around 2 ft. Wave Detail: E 1 foot at 3 seconds and SW 1 foot at 5 seconds. .TUE NIGHT...SE winds around 5 kt, becoming SW after midnight. Seas 1 foot or less. Wave Detail: E 1 foot at 3 seconds and S 1 foot at 5 seconds. Patchy fog after midnight with vsby 1 to 3 NM. .WED...SW winds 5 to 10 kt, increasing to 10 to 15 kt in the afternoon. Seas 1 foot or less. Wave Detail: SW 1 foot at 3 seconds and NE 1 foot at 4 seconds. .WED NIGHT...S winds 10 to 15 kt. Seas 1 foot or less. Wave Detail: SW 1 foot at 3 seconds and NE 1 foot at 4 seconds. .THU AND THU NIGHT...E winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Wave Detail: SE 2 ft at 3 seconds and E 1 foot at 8 seconds. A chance of showers in the morning, then showers likely through the night. A chance of showers after midnight. Vsby 1 to 3 NM. .FRI AND FRI NIGHT...SE winds 10 to 15 kt. Seas 2 to 3 ft. A chance of showers. .SAT AND SAT NIGHT...S winds 10 to 15 kt. Seas 2 to 3 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ233-041800- Vineyard Sound- 104 AM EDT Tue Jun 4 2024 .REST OF TONIGHT...E winds around 5 kt. Seas 1 foot or less. Wave Detail: E 1 foot at 2 seconds and SW 1 foot at 5 seconds. .TUE...E winds 5 to 10 kt. Seas 1 foot or less. Wave Detail: E 1 foot at 2 seconds and SW 1 foot at 5 seconds. .TUE NIGHT...S winds around 5 kt. Seas 1 foot or less. Wave Detail: E 1 foot at 3 seconds and S 1 foot at 5 seconds. .WED...SW winds 5 to 10 kt. Seas 1 foot or less. Wave Detail: E 1 foot at 4 seconds and SW 1 foot at 5 seconds. .WED NIGHT...S winds around 10 kt. Seas 1 foot or less. Wave Detail: SW 1 foot at 3 seconds and SE 1 foot at 8 seconds. A chance of showers after midnight. .THU...SE winds 10 to 15 kt. Gusts up to 20 kt in the afternoon. Seas 2 to 3 ft. Wave Detail: SE 2 ft at 4 seconds and SE 1 foot at 8 seconds. Showers likely. Vsby 1 to 3 NM. .THU NIGHT...SE winds 10 to 15 kt. Seas 2 to 3 ft. Showers likely, mainly in the evening. .FRI THROUGH SAT...S winds 10 to 15 kt. Seas 2 to 3 ft. A chance of showers. .SAT NIGHT...SW winds 10 to 15 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. $$ ANZ234-041800- Buzzards Bay- 104 AM EDT Tue Jun 4 2024 .REST OF TONIGHT...E winds around 5 kt. Seas 1 foot or less. Wave Detail: E 1 foot at 2 seconds and SW 1 foot at 5 seconds. .TUE...E winds 5 to 10 kt. Seas 1 foot or less. Wave Detail: E 1 foot at 2 seconds and SW 1 foot at 5 seconds. .TUE NIGHT...S winds around 5 kt. Seas 1 foot or less. Wave Detail: E 1 foot at 2 seconds and S 1 foot at 5 seconds. Patchy fog after midnight with vsby 1 to 3 NM. .WED...SW winds 5 to 10 kt. Seas 1 foot or less. Wave Detail: SW 1 foot at 4 seconds and E 1 foot at 4 seconds. .WED NIGHT...S winds around 10 kt. Seas 1 foot or less. Wave Detail: SW 1 foot at 3 seconds and NE 1 foot at 4 seconds. A chance of showers after midnight. .THU...SE winds 10 to 15 kt. Gusts up to 20 kt in the afternoon. Seas around 2 ft. Wave Detail: S 2 ft at 4 seconds and SE 1 foot at 8 seconds. Showers likely. Vsby 1 to 3 NM. .THU NIGHT...SE winds 10 to 15 kt, becoming E 5 to 10 kt after midnight. Seas 2 to 3 ft. Showers likely, mainly in the evening. .FRI THROUGH SAT...S winds 10 to 15 kt. Seas 2 to 3 ft. A chance of showers. .SAT NIGHT...SW winds 10 to 15 kt. Seas around 2 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ235-041800- Rhode Island Sound- 104 AM EDT Tue Jun 4 2024 .REST OF TONIGHT...E winds 5 to 10 kt. Seas around 2 ft. Wave Detail: S 2 ft at 6 seconds and E 1 foot at 2 seconds. .TUE...E winds 5 to 10 kt. Seas around 2 ft. Wave Detail: S 2 ft at 6 seconds and E 1 foot at 3 seconds. .TUE NIGHT...S winds 5 to 10 kt. Seas around 2 ft in the evening, then 1 foot or less. Wave Detail: SE 2 ft at 4 seconds and SE 1 foot at 8 seconds, becoming SE 1 foot at 4 seconds and SE 1 foot at 8 seconds. Patchy fog after midnight with vsby 1 to 3 NM. .WED...SW winds 5 to 10 kt. Seas 1 foot or less. Wave Detail: S 1 foot at 4 seconds and E 1 foot at 4 seconds. Patchy fog in the morning with vsby 1 to 3 NM. .WED NIGHT...S winds around 10 kt. Seas 1 foot or less, then around 2 ft after midnight. Wave Detail: S 1 foot at 5 seconds and SE 1 foot at 8 seconds, becoming S 2 ft at 5 seconds and SE 1 foot at 8 seconds. A chance of showers after midnight. .THU...SE winds 10 to 15 kt. Gusts up to 20 kt in the afternoon. Seas 2 to 4 ft. Wave Detail: SE 3 ft at 4 seconds and SE 1 foot at 8 seconds. Showers likely. Vsby 1 to 3 NM. .THU NIGHT...SE winds 10 to 15 kt, becoming NE after midnight. Seas 3 to 4 ft. Showers likely, mainly in the evening. .FRI THROUGH SAT...S winds 10 to 15 kt. Seas 3 to 4 ft. A chance of showers. .SAT NIGHT...SW winds 10 to 15 kt. Seas around 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. $$ ANZ237-041800- Block Island Sound- 104 AM EDT Tue Jun 4 2024 .REST OF TONIGHT...E winds around 5 kt. Seas around 2 ft. Wave Detail: S 2 ft at 6 seconds and E 1 foot at 2 seconds. .TUE...E winds 5 to 10 kt. Seas around 2 ft. Wave Detail: S 2 ft at 6 seconds and E 1 foot at 3 seconds. .TUE NIGHT...S winds 5 to 10 kt. Seas around 2 ft in the evening, then 1 foot or less. Wave Detail: SE 1 foot at 4 seconds and SE 1 foot at 8 seconds. .WED...S winds 5 to 10 kt. Seas 1 foot or less. Wave Detail: SE 1 foot at 3 seconds and S 1 foot at 7 seconds. Patchy fog in the morning with vsby 1 to 3 NM. .WED NIGHT...S winds 5 to 10 kt. Seas 1 foot or less, then around 2 ft after midnight. Wave Detail: S 1 foot at 5 seconds and SE 1 foot at 8 seconds, becoming S 2 ft at 5 seconds and SE 1 foot at 8 seconds. A chance of showers after midnight. .THU...SE winds around 10 kt. Gusts up to 20 kt in the afternoon. Seas 2 to 4 ft. Wave Detail: SE 2 ft at 4 seconds and SE 1 foot at 8 seconds. Showers likely. .THU NIGHT...SE winds around 10 kt, becoming NE after midnight. Seas 3 to 4 ft. A chance of showers. .FRI THROUGH SAT NIGHT...SW winds 5 to 10 kt. Seas 2 to 4 ft. A chance of showers. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ230-041800- Boston Harbor- 104 AM EDT Tue Jun 4 2024 .REST OF TONIGHT...E winds around 5 kt. Waves 1 foot or less. .TUE...E winds 5 to 10 kt. Waves 1 foot or less. .TUE NIGHT...SE winds 5 to 10 kt, becoming SW after midnight. Waves 1 foot or less. .WED...SW winds 5 to 10 kt. Waves 1 foot or less. .WED NIGHT...S winds around 10 kt. Waves around 2 ft in the evening, then 1 foot or less. .THU AND THU NIGHT...E winds 10 to 15 kt. Waves around 2 ft. A chance of showers in the morning, then showers likely through the night. A chance of showers after midnight. .FRI THROUGH SAT NIGHT...S winds 5 to 10 kt. Waves 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. $$ ANZ236-041800- Narragansett Bay- 104 AM EDT Tue Jun 4 2024 .REST OF TONIGHT...E winds around 5 kt. Waves 1 foot or less. .TUE...E winds around 5 kt, becoming SE in the afternoon. Waves 1 foot or less. .TUE NIGHT...S winds 5 to 10 kt. Waves 1 foot or less. .WED...SW winds 5 to 10 kt. Waves 1 foot or less. .WED NIGHT...S winds 5 to 10 kt. Waves 1 foot or less, then around 2 ft after midnight. A chance of showers after midnight. .THU...SE winds 5 to 10 kt, increasing to 10 to 15 kt in the afternoon. Waves 2 to 3 ft. Showers likely. .THU NIGHT...SE winds 5 to 10 kt, becoming NE after midnight. Waves 2 to 4 ft. Showers likely, mainly in the evening. .FRI THROUGH SAT NIGHT...SW winds 5 to 10 kt. Waves 2 to 4 ft. A chance of showers. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ 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