Coastal Waters Forecast
Issued by NWS Boston, MA

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235 FZUS51 KBOX 030504 CWFBOX Coastal Waters Forecast for Massachusetts and Rhode Island National Weather Service Boston/Norton MA 104 AM EDT Mon Jun 3 2024 Coastal waters from the Merrimack River MA to Watch Hill RI out to 25 NM ANZ200-031800- 104 AM EDT Mon Jun 3 2024 .Synopsis for Massachusetts and Rhode Island coastal waters... Tranquil boating conditions with high pressure remaining in control through mid week. A series of fronts will move into the waters Thu and Fri. $$ ANZ250-031800- Coastal waters east of Ipswich Bay and the Stellwagen Bank National Marine Sanctuary- 104 AM EDT Mon Jun 3 2024 .REST OF TONIGHT...W winds around 10 kt with gusts up to 20 kt. Seas around 2 ft. Wave Detail: SW 2 ft at 3 seconds and E 1 foot at 4 seconds. .MON...N winds 5 to 10 kt, becoming E in the afternoon. Seas around 2 ft. Wave Detail: NE 1 foot at 2 seconds and W 1 foot at 3 seconds. .MON NIGHT...E winds 5 to 10 kt. Seas around 2 ft. Wave Detail: SW 1 foot at 2 seconds and E 1 foot at 3 seconds. Patchy fog after midnight with vsby 1 NM or less. .TUE...E winds 5 to 10 kt. Seas around 2 ft in the morning, then 1 foot or less. Wave Detail: NE 1 foot at 5 seconds and E 1 foot at 9 seconds. Patchy fog in the morning with vsby 1 NM or less. .TUE NIGHT THROUGH WED NIGHT...S winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: S 2 ft at 3 seconds and E 2 ft at 8 seconds. .THU AND THU NIGHT...S winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. Wave Detail: S 3 ft at 4 seconds and E 1 foot at 9 seconds. Showers likely. .FRI...S winds around 10 kt. Seas 3 to 4 ft. A chance of showers. .FRI NIGHT...S winds around 10 kt. Seas 3 to 4 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ251-031800- Massachusetts Bay and Ipswich Bay- 104 AM EDT Mon Jun 3 2024 .REST OF TONIGHT...W winds 5 to 10 kt. Seas 1 foot or less. Wave Detail: SW 1 foot at 3 seconds and E 1 foot at 4 seconds. .MON...N winds around 5 kt, becoming E in the afternoon. Seas 1 foot or less, then around 2 ft in the afternoon. Wave Detail: W 1 foot at 2 seconds and NE 1 foot at 4 seconds, becoming SW 1 foot at 3 seconds and NE 1 foot at 3 seconds. .MON NIGHT...E winds 5 to 10 kt. Seas around 2 ft. Wave Detail: E 1 foot at 3 seconds and E 1 foot at 9 seconds. Patchy fog after midnight with vsby 1 to 3 NM. .TUE...E winds 5 to 10 kt. Seas 1 foot or less. Wave Detail: S 1 foot at 4 seconds and E 1 foot at 5 seconds. Patchy fog in the morning with vsby 1 NM or less. .TUE NIGHT THROUGH WED NIGHT...S winds 10 to 15 kt. Seas around 2 ft. Wave Detail: S 2 ft at 3 seconds and E 1 foot at 5 seconds. .THU AND THU NIGHT...S 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. Showers likely. .FRI AND FRI NIGHT...S winds around 10 kt. Seas 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. $$ ANZ231-031800- Cape Cod Bay- 104 AM EDT Mon Jun 3 2024 .REST OF TONIGHT...W winds 5 to 10 kt. Seas 1 foot or less. Wave Detail: W 1 foot at 2 seconds and NE 1 foot at 4 seconds. .MON...NW winds around 5 kt, becoming NE in the afternoon. Seas 1 foot or less. Wave Detail: NW 1 foot at 2 seconds and NE 1 foot at 4 seconds. .MON NIGHT...E winds 5 to 10 kt. Seas 1 foot or less. Wave Detail: E 1 foot at 2 seconds and SW 1 foot at 3 seconds. Patchy fog after midnight with vsby 1 to 3 NM. .TUE...E winds 5 to 10 kt. Seas 1 foot or less. Wave Detail: E 1 foot at 3 seconds and S 1 foot at 4 seconds. Patchy fog in the morning with vsby 1 to 3 NM. .TUE NIGHT THROUGH WED NIGHT...S winds 5 to 10 kt. Seas 1 foot or less. Wave Detail: E 1 foot at 3 seconds and S 1 foot at 4 seconds. .THU AND THU NIGHT...S winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft. Wave Detail: SE 1 foot at 3 seconds and E 1 foot at 8 seconds. Showers likely. .FRI...SW winds around 10 kt. Seas around 2 ft. A chance of showers. .FRI NIGHT...SW winds around 10 kt. Seas around 2 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ254-031800- Coastal waters from Provincetown MA to Chatham MA to Nantucket MA out 20 nm- 104 AM EDT Mon Jun 3 2024 .REST OF TONIGHT...W winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Wave Detail: W 2 ft at 4 seconds and NE 1 foot at 4 seconds. .MON...NW winds 5 to 10 kt, becoming NE in the afternoon. Seas around 2 ft. Wave Detail: W 2 ft at 4 seconds and NE 1 foot at 3 seconds. .MON NIGHT...E winds 5 to 10 kt. Seas around 2 ft. Wave Detail: S 2 ft at 6 seconds and NE 1 foot at 3 seconds. Patchy fog after midnight with vsby 1 NM or less. .TUE...E winds around 5 kt. Seas around 2 ft. Wave Detail: S 2 ft at 6 seconds and NE 1 foot at 5 seconds. Patchy fog in the morning with vsby 1 NM or less. .TUE NIGHT THROUGH WED NIGHT...S winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: S 2 ft at 3 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: S 3 ft at 4 seconds and E 2 ft at 8 seconds. Showers likely. .THU NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 5 ft. Showers likely. .FRI...SW winds 10 to 15 kt. Seas 3 to 4 ft. A chance of showers. .FRI 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. $$ ANZ255-031800- Coastal Waters extending out to 25 nm South of Marthas Vineyard and Nantucket- 104 AM EDT Mon Jun 3 2024 .REST OF TONIGHT...W winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Wave Detail: SW 2 ft at 5 seconds and NE 1 foot at 5 seconds. .MON...W winds 10 to 15 kt, becoming N 5 to 10 kt in the afternoon. Seas 2 to 3 ft. Wave Detail: SW 2 ft at 5 seconds and NE 1 foot at 5 seconds. .MON NIGHT...E winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: SW 2 ft at 6 seconds and NE 1 foot at 3 seconds. Patchy fog after midnight with vsby 1 NM or less. .TUE...E winds 5 to 10 kt. Seas around 2 ft. Wave Detail: SW 2 ft at 6 seconds and NE 1 foot at 4 seconds. Patchy fog in the morning with vsby 1 NM or less. .TUE NIGHT THROUGH WED NIGHT...S winds 10 to 15 kt. Seas around 2 ft. Wave Detail: SW 2 ft at 6 seconds and E 2 ft at 8 seconds. .THU...S winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. Wave Detail: S 4 ft at 5 seconds and E 2 ft at 8 seconds. Showers likely. .THU NIGHT...SW winds around 15 kt with gusts up to 20 kt. Seas 3 to 5 ft. Showers likely. .FRI...SW winds 10 to 15 kt. Seas 3 to 5 ft. A chance of showers. .FRI NIGHT...SW winds 10 to 15 kt. Seas 3 to 5 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ256-031800- Coastal Waters from Montauk NY to Marthas Vineyard extending out to 20 nm South of Block Island- 104 AM EDT Mon Jun 3 2024 .REST OF TONIGHT...SW winds around 10 kt. Seas around 2 ft. Wave Detail: SW 2 ft at 5 seconds and SE 1 foot at 9 seconds. .MON...W winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: SW 2 ft at 5 seconds and E 1 foot at 9 seconds. .MON NIGHT...E winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: SW 2 ft at 6 seconds and E 1 foot at 2 seconds. Patchy fog after midnight with vsby 1 NM or less. .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. Patchy fog in the morning with vsby 1 NM or less. .TUE NIGHT AND WED...S winds 5 to 10 kt. Seas around 2 ft. Wave Detail: S 2 ft at 6 seconds and E 1 foot at 3 seconds. .WED NIGHT...S winds around 10 kt. Seas 2 to 3 ft. Wave Detail: S 2 ft at 4 seconds and E 1 foot at 8 seconds. A chance of showers after midnight. .THU AND THU NIGHT...S winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. Showers likely. .FRI...SW winds 10 to 15 kt. Seas 4 to 5 ft. A chance of showers. .FRI NIGHT...SW 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. $$ ANZ232-031800- Nantucket Sound- 104 AM EDT Mon Jun 3 2024 .REST OF TONIGHT...W winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft. Wave Detail: W 2 ft at 3 seconds and NE 1 foot at 5 seconds. .MON...W winds 5 to 10 kt, becoming NE in the afternoon. Seas around 2 ft. Wave Detail: W 1 foot at 4 seconds and NE 1 foot at 4 seconds. .MON NIGHT...E winds 5 to 10 kt. Seas around 2 ft. Wave Detail: E 1 foot at 3 seconds and SW 1 foot at 6 seconds. Patchy fog after midnight with vsby 1 NM or less. .TUE...E winds 5 to 10 kt. Seas 1 foot or less. Wave Detail: E 1 foot at 3 seconds and SW 1 foot at 6 seconds. Patchy fog in the morning with vsby 1 NM or less. .TUE NIGHT THROUGH WED NIGHT...S winds 5 to 10 kt. Seas 1 foot or less. Wave Detail: E 1 foot at 3 seconds and S 1 foot at 6 seconds. .THU AND THU NIGHT...S winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Wave Detail: SE 2 ft at 4 seconds and E 1 foot at 8 seconds. Showers likely. .FRI...SW winds 10 to 15 kt. Seas 2 to 3 ft. A chance of showers. .FRI NIGHT...SW winds 10 to 15 kt. Seas 2 to 3 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ233-031800- Vineyard Sound- 104 AM EDT Mon Jun 3 2024 .REST OF TONIGHT...SW winds 5 to 10 kt. Seas 1 foot or less. Wave Detail: SW 1 foot at 4 seconds and NE 1 foot at 5 seconds. .MON...W winds 5 to 10 kt, becoming E in the afternoon. Seas 1 foot or less, then around 2 ft in the afternoon. Wave Detail: SW 1 foot at 5 seconds and SE 1 foot at 9 seconds, becoming SW 2 ft at 5 seconds and NE 1 foot at 2 seconds. .MON NIGHT...E winds 5 to 10 kt. Seas around 2 ft. Wave Detail: SW 2 ft at 6 seconds and E 1 foot at 2 seconds. .TUE...E winds around 5 kt, becoming SE in the afternoon. Seas 1 foot or less. Wave Detail: E 1 foot at 3 seconds and SW 1 foot at 6 seconds. Patchy fog in the morning with vsby 1 to 3 NM. .TUE NIGHT THROUGH WED NIGHT...S winds 5 to 10 kt. Seas 1 foot or less. Wave Detail: E 1 foot at 3 seconds and S 1 foot at 6 seconds. .THU AND THU NIGHT...S winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Wave Detail: S 3 ft at 7 seconds. Showers likely. .FRI...S winds 10 to 15 kt. Seas 2 to 3 ft. A chance of showers. .FRI 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. $$ ANZ234-031800- Buzzards Bay- 104 AM EDT Mon Jun 3 2024 .REST OF TONIGHT...SW winds 5 to 10 kt. Seas 1 foot or less. Wave Detail: SW 1 foot at 4 seconds and NE 1 foot at 4 seconds. .MON...W winds around 5 kt, becoming E in the afternoon. Seas 1 foot or less. Wave Detail: SW 1 foot at 5 seconds and SE 1 foot at 9 seconds. .MON NIGHT...E winds 5 to 10 kt. Seas 1 foot or less. Wave Detail: E 1 foot at 2 seconds and SW 1 foot at 5 seconds. Patchy fog after midnight with vsby 1 to 3 NM. .TUE...E winds around 5 kt, becoming SE in the afternoon. Seas 1 foot or less. Wave Detail: E 1 foot at 3 seconds and SW 1 foot at 6 seconds. Patchy fog in the morning with vsby 1 to 3 NM. .TUE NIGHT THROUGH WED NIGHT...S winds 5 to 10 kt. Seas 1 foot or less. Wave Detail: E 1 foot at 2 seconds and S 1 foot at 6 seconds. .THU AND THU NIGHT...S winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft. Wave Detail: S 2 ft at 3 seconds and SE 1 foot at 8 seconds. Showers likely. .FRI...S winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft. A chance of showers. .FRI NIGHT...SW winds 10 to 15 kt. Seas around 2 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ235-031800- Rhode Island Sound- 104 AM EDT Mon Jun 3 2024 .REST OF TONIGHT...W winds around 10 kt. Seas around 2 ft. Wave Detail: SW 2 ft at 4 seconds and SE 1 foot at 8 seconds. .MON...W winds 5 to 10 kt, becoming S in the afternoon. Seas around 2 ft. Wave Detail: SW 2 ft at 5 seconds and SE 1 foot at 9 seconds. .MON NIGHT...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, becoming SE in the afternoon. Seas around 2 ft in the morning, then 1 foot or less. Wave Detail: S 2 ft at 6 seconds and E 1 foot at 3 seconds, becoming E 1 foot at 3 seconds and S 1 foot at 6 seconds. Patchy fog in the morning with vsby 1 to 3 NM. .TUE NIGHT AND WED...SW winds 5 to 10 kt. Seas 1 foot or less. Wave Detail: E 1 foot at 3 seconds and S 1 foot at 6 seconds. .WED NIGHT...S winds around 10 kt. Seas around 2 ft. Wave Detail: S 2 ft at 4 seconds and SE 1 foot at 8 seconds. A chance of showers after midnight. .THU AND THU NIGHT...S winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. Showers likely. .FRI...S winds 10 to 15 kt. Seas 3 to 4 ft. A chance of showers. .FRI 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. $$ ANZ237-031800- Block Island Sound- 104 AM EDT Mon Jun 3 2024 .REST OF TONIGHT...SW winds 5 to 10 kt. Seas around 2 ft. Wave Detail: SW 1 foot at 4 seconds and SE 1 foot at 9 seconds. .MON...SW winds around 5 kt. Seas around 2 ft. Wave Detail: SW 2 ft at 5 seconds and SE 1 foot at 9 seconds. .MON NIGHT...E winds around 5 kt. Seas around 2 ft. Wave Detail: S 2 ft at 6 seconds and E 1 foot at 2 seconds. .TUE...E winds 5 to 10 kt, becoming SE in the afternoon. Seas around 2 ft in the morning, then 1 foot or less. Wave Detail: S 2 ft at 6 seconds and E 1 foot at 3 seconds, becoming E 1 foot at 3 seconds and S 1 foot at 6 seconds. Patchy fog in the morning with vsby 1 to 3 NM. .TUE NIGHT AND WED...S winds 5 to 10 kt. Seas 1 foot or less. Wave Detail: E 1 foot at 3 seconds and S 1 foot at 6 seconds. .WED NIGHT...S winds around 10 kt. Seas around 2 ft. Wave Detail: S 2 ft at 4 seconds and SE 1 foot at 8 seconds. A chance of showers after midnight. .THU AND THU NIGHT...S winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. Showers likely. .FRI...S winds 10 to 15 kt. Seas 3 to 4 ft. A chance of showers. .FRI NIGHT...SW winds 10 to 15 kt. Seas 3 to 4 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ230-031800- Boston Harbor- 104 AM EDT Mon Jun 3 2024 .REST OF TONIGHT...W winds 5 to 10 kt. Waves 1 foot or less. .MON...N winds around 5 kt, becoming E in the afternoon. Waves 1 foot or less. .MON NIGHT...E winds 5 to 10 kt. Waves 1 foot or less. Patchy fog after midnight with vsby 1 to 3 NM. .TUE...E winds 5 to 10 kt. Waves 1 foot or less. Patchy fog in the morning with vsby 1 to 3 NM. .TUE NIGHT AND WED...S 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. A chance of showers after midnight. .THU AND THU NIGHT...S winds 10 to 15 kt. Gusts up to 20 kt. Waves around 2 ft. Showers likely. .FRI AND FRI NIGHT...SW winds around 10 kt. Waves around 2 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. $$ ANZ236-031800- Narragansett Bay- 104 AM EDT Mon Jun 3 2024 .REST OF TONIGHT...SW winds 5 to 10 kt. Waves 1 foot or less. .MON...W winds around 5 kt, becoming SE in the afternoon. Waves 1 foot or less. .MON NIGHT...E winds 5 to 10 kt. Waves around 2 ft in the evening, then 1 foot or less. Patchy fog after midnight with vsby 1 to 3 NM. .TUE...E winds around 5 kt, becoming S in the afternoon. Waves 1 foot or less. Patchy fog in the morning with vsby 1 to 3 NM. .TUE NIGHT AND WED...S winds 5 to 10 kt. Waves 1 foot or less. .WED NIGHT...S winds 5 to 10 kt. Waves 1 foot or less, then around 2 ft after midnight. A chance of showers after midnight. .THU AND THU NIGHT...S winds 10 to 15 kt. Gusts up to 20 kt. Waves 2 to 3 ft. Showers likely. .FRI...SW winds 10 to 15 kt. Waves 2 to 3 ft. A chance of showers. .FRI NIGHT...SW winds 5 to 10 kt. Waves 2 to 3 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ 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