Coastal Waters Forecast
Issued by NWS Boston, MA
Issued by NWS Boston, MA
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828 FZUS51 KBOX 290203 CWFBOX Coastal Waters Forecast for Massachusetts and Rhode Island National Weather Service Boston/Norton MA 1003 PM EDT Sun Apr 28 2024 Coastal waters from the Merrimack River MA to Watch Hill RI out to 25 NM ANZ200-291500- 1003 PM EDT Sun Apr 28 2024 .Synopsis for Massachusetts and Rhode Island coastal waters... A cold front will drop south across northern New Eng tonight and move into the waters Monday, then stall to the west Mon night and Tue. Low pres tracks south of New Eng Tue night into Wed, then high pres will follow for Thu and Fri. $$ ANZ250-291500- Coastal waters east of Ipswich Bay and the Stellwagen Bank National Marine Sanctuary- 1003 PM EDT Sun Apr 28 2024 .OVERNIGHT...SW winds around 10 kt, becoming W. Seas 2 to 3 ft. Wave Detail: SW 2 ft at 4 seconds and E 2 ft at 9 seconds. Patchy fog. A slight chance of showers. Vsby 1 NM or less. .MON...N winds 10 to 15 kt, becoming NE 5 to 10 kt in the afternoon. Gusts up to 25 kt. Seas 2 to 3 ft. Wave Detail: E 3 ft at 9 seconds and NW 2 ft at 3 seconds. .MON NIGHT...SW winds around 5 kt, becoming NE 10 to 15 kt after midnight. Seas 2 to 3 ft. Wave Detail: E 3 ft at 9 seconds. .TUE...NE winds 10 to 15 kt with gusts up to 20 kt, becoming E 5 to 10 kt in the afternoon. Seas 2 to 3 ft. Wave Detail: NE 3 ft at 8 seconds. .TUE NIGHT...SE winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: E 3 ft at 8 seconds and SE 1 ft at 4 seconds. A chance of showers. .WED...E winds 5 to 10 kt. Seas around 2 ft. Wave Detail: E 2 ft at 3 seconds and E 2 ft at 8 seconds. Showers likely in the morning. .WED NIGHT...NE winds 5 to 10 kt, becoming N after midnight. Seas around 2 ft. .THU THROUGH FRI NIGHT...S winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 3 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ251-291500- Massachusetts Bay and Ipswich Bay- 1003 PM EDT Sun Apr 28 2024 .OVERNIGHT...SW winds 5 to 10 kt, becoming W. Seas around 2 ft. Wave Detail: S 2 ft at 3 seconds and E 2 ft at 9 seconds. A slight chance of showers. Patchy fog with vsby 1 NM or less. .MON...N winds around 10 kt with gusts up to 20 kt, becoming E in the afternoon. Seas around 2 ft. Wave Detail: E 2 ft at 9 seconds and NW 1 ft at 3 seconds. .MON NIGHT...S winds around 5 kt, becoming E 10 to 15 kt after midnight. Seas around 2 ft. Wave Detail: E 2 ft at 10 seconds. .TUE...E winds 10 to 15 kt. Gusts up to 20 kt in the afternoon. Seas around 2 ft. Wave Detail: NE 2 ft at 8 seconds and SE 1 ft at 4 seconds. .TUE NIGHT...SE winds 10 to 15 kt with gusts up to 20 kt, diminishing to 5 to 10 kt after midnight. Seas around 2 ft. Wave Detail: E 2 ft at 9 seconds and SE 1 ft at 4 seconds. A chance of showers after midnight. .WED...E winds around 10 kt. Seas around 2 ft. Wave Detail: E 2 ft at 3 seconds and E 2 ft at 7 seconds. Showers likely in the morning. .WED NIGHT...E winds 5 to 10 kt, becoming N after midnight. Seas around 2 ft. .THU THROUGH FRI NIGHT...SE 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. $$ ANZ231-291500- Cape Cod Bay- 1003 PM EDT Sun Apr 28 2024 .OVERNIGHT...SW winds 5 to 10 kt. Seas around 2 ft. Wave Detail: E 2 ft at 9 seconds and SW 1 ft at 2 seconds. Patchy fog. A slight chance of showers. Vsby 1 to 3 NM, decreasing to 1 NM or less. .MON...N winds around 10 kt, becoming NE in the afternoon. Gusts up to 25 kt. Seas around 2 ft. Wave Detail: E 2 ft at 9 seconds and NW 1 ft at 3 seconds. Patchy fog in the morning. .MON NIGHT...S winds around 5 kt, becoming W after midnight. Seas around 2 ft. Wave Detail: NE 2 ft at 7 seconds and NW 1 ft at 4 seconds. Patchy fog after midnight with vsby 1 to 3 NM. .TUE...E winds 5 to 10 kt. Seas around 2 ft. Wave Detail: NE 2 ft at 6 seconds and E 1 ft at 3 seconds. .TUE NIGHT...SE winds 5 to 10 kt. Seas around 2 ft. Wave Detail: NE 2 ft at 6 seconds and SE 1 ft at 2 seconds. A chance of showers. .WED...E winds 5 to 10 kt with gusts up to 20 kt. Seas around 2 ft. Wave Detail: E 1 ft at 2 seconds and NE 1 ft at 6 seconds. Showers likely, mainly in the morning. .WED NIGHT...NE winds 5 to 10 kt. Seas around 2 ft. .THU THROUGH FRI...SW winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft. .FRI NIGHT...S winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 4 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ254-291500- Coastal waters from Provincetown MA to Chatham MA to Nantucket MA out 20 nm- 1003 PM EDT Sun Apr 28 2024 .OVERNIGHT...SW winds around 10 kt. Seas 2 to 3 ft. Wave Detail: E 3 ft at 9 seconds and SW 2 ft at 3 seconds. Patchy fog. A slight chance of showers. Vsby 1 to 3 NM, decreasing to 1 NM or less. .MON...N winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 4 ft. Wave Detail: NE 4 ft at 11 seconds and NW 3 ft at 4 seconds. Patchy fog in the morning with vsby 1 to 3 NM. .MON NIGHT...NW winds around 5 kt, becoming N after midnight. Seas 2 to 4 ft. Wave Detail: E 4 ft at 11 seconds and W 2 ft at 5 seconds. Patchy fog. Vsby 1 to 3 NM. .TUE...E winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: NE 3 ft at 9 seconds and S 1 ft at 6 seconds. .TUE NIGHT...SE winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: NE 3 ft at 9 seconds and S 1 ft at 6 seconds. A chance of showers. .WED...E winds 5 to 10 kt with gusts up to 20 kt. Seas 2 to 3 ft. Wave Detail: NE 3 ft at 8 seconds and SE 2 ft at 5 seconds. A chance of showers. .WED NIGHT...NE winds 5 to 10 kt. Seas 2 to 3 ft. .THU THROUGH FRI NIGHT...S winds 10 to 15 kt with gusts up to 25 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. $$ ANZ255-291500- Coastal Waters extending out to 25 nm South of Marthas Vineyard and Nantucket- 1003 PM EDT Sun Apr 28 2024 .OVERNIGHT...W winds around 10 kt with gusts up to 20 kt. Seas 2 to 3 ft. Wave Detail: SW 2 ft at 4 seconds and E 2 ft at 9 seconds. Patchy fog. A chance of showers this evening. Vsby 1 to 3 NM, decreasing to 1 NM or less. .MON...N winds 10 to 15 kt, becoming NE in the afternoon. Gusts up to 25 kt. Seas 2 to 4 ft. Wave Detail: SW 3 ft at 5 seconds and E 3 ft at 9 seconds. Patchy fog in the morning with vsby 1 to 3 NM. .MON NIGHT...SE winds around 5 kt, becoming W after midnight. Seas 2 to 4 ft. Wave Detail: E 3 ft at 11 seconds and SW 2 ft at 5 seconds. Patchy fog. Vsby 1 to 3 NM. .TUE...E winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: E 3 ft at 11 seconds and SW 2 ft at 6 seconds. Patchy fog in the morning with vsby 1 to 3 NM. .TUE NIGHT...SE winds around 10 kt. Gusts up to 20 kt after midnight. Seas 2 to 3 ft. Wave Detail: SE 2 ft at 4 seconds and E 2 ft at 9 seconds. A chance of showers. .WED...E winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Wave Detail: NE 3 ft at 8 seconds and SE 2 ft at 5 seconds. A chance of showers. .WED NIGHT...NE winds 10 to 15 kt. Gusts up to 20 kt in the evening. Seas 2 to 3 ft. .THU THROUGH FRI NIGHT...S winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ256-291500- Coastal Waters from Montauk NY to Marthas Vineyard extending out to 20 nm South of Block Island- 1003 PM EDT Sun Apr 28 2024 .OVERNIGHT...W winds around 10 kt with gusts up to 20 kt. Seas 2 to 3 ft. Wave Detail: S 2 ft at 4 seconds and E 2 ft at 9 seconds. Patchy fog. A chance of showers. Vsby 1 to 3 NM, decreasing to 1 NM or less. .MON...NW winds around 10 kt, becoming E in the afternoon. Gusts up to 20 kt. Seas 2 to 3 ft. Wave Detail: E 3 ft at 10 seconds and SW 2 ft at 4 seconds. Patchy fog in the morning with vsby 1 to 3 NM. .MON NIGHT...SE winds 5 to 10 kt, diminishing to around 5 kt after midnight. Seas 2 to 3 ft. Wave Detail: E 3 ft at 12 seconds and S 2 ft at 5 seconds. Patchy fog. Vsby 1 to 3 NM. .TUE...E winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: E 3 ft at 11 seconds and S 2 ft at 6 seconds. .TUE NIGHT...E winds 5 to 10 kt with gusts up to 20 kt. Seas 2 to 3 ft. Wave Detail: SE 2 ft at 4 seconds and E 2 ft at 10 seconds. A chance of showers. .WED...NE 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 E 2 ft at 9 seconds. A chance of showers. .WED NIGHT...NE winds 10 to 15 kt. Gusts up to 20 kt in the evening. Seas 2 to 3 ft. .THU THROUGH FRI NIGHT...S 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. $$ ANZ232-291500- Nantucket Sound- 1003 PM EDT Sun Apr 28 2024 .OVERNIGHT...W winds 5 to 10 kt. Gusts up to 20 kt. Seas around 2 ft. Wave Detail: SW 1 ft at 3 seconds and E 1 ft at 10 seconds. Patchy fog. A chance of showers. Vsby 1 to 3 NM, decreasing to 1 NM or less. .MON...N winds 10 to 15 kt, becoming NE in the afternoon. Gusts up to 25 kt. Seas 2 to 3 ft. Wave Detail: NW 2 ft at 3 seconds and E 2 ft at 9 seconds. Patchy fog in the morning with vsby 1 to 3 NM. .MON NIGHT...S winds around 5 kt, becoming NW after midnight. Seas around 2 ft. Wave Detail: E 2 ft at 11 seconds and S 1 ft at 5 seconds. Patchy fog after midnight with vsby 1 to 3 NM. .TUE...E winds 5 to 10 kt. Seas around 2 ft. Wave Detail: E 2 ft at 11 seconds and SE 1 ft at 5 seconds. .TUE NIGHT...SE winds 5 to 10 kt. Seas around 2 ft. Wave Detail: SE 1 ft at 3 seconds and E 1 ft at 10 seconds. A chance of showers. .WED...E winds around 10 kt with gusts up to 20 kt. Seas around 2 ft. Wave Detail: E 1 ft at 3 seconds and E 1 ft at 9 seconds. Showers likely, mainly in the morning. .WED NIGHT...NE winds 5 to 10 kt. Seas around 2 ft. .THU THROUGH FRI NIGHT...S winds 5 to 10 kt with gusts up to 25 kt. Seas around 2 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ233-291500- Vineyard Sound- 1003 PM EDT Sun Apr 28 2024 .OVERNIGHT...W winds 5 to 10 kt. Seas around 2 ft. Wave Detail: SW 1 ft at 4 seconds and SE 1 ft at 9 seconds. Patchy fog. A chance of showers this evening. Vsby 1 to 3 NM, decreasing to 1 NM or less. .MON...N winds around 10 kt, becoming E in the afternoon. Gusts up to 20 kt. Seas around 2 ft. Wave Detail: W 1 ft at 4 seconds and E 1 ft at 9 seconds. Patchy fog in the morning. .MON NIGHT...S winds around 5 kt, becoming W around 5 kt after midnight. Seas around 2 ft in the evening, then 1 foot or less. Wave Detail: S 1 ft at 5 seconds and E 1 ft at 6 seconds, becoming SW 1 ft at 5 seconds and E 1 ft at 11 seconds. Patchy fog. Vsby 1 to 3 NM. .TUE...E winds 5 to 10 kt. Seas around 2 ft. Wave Detail: S 1 ft at 5 seconds and E 1 ft at 12 seconds. .TUE NIGHT...E winds 5 to 10 kt. Seas around 2 ft. Wave Detail: SE 1 ft at 3 seconds and E 1 ft at 8 seconds. A chance of showers. .WED...NE winds around 10 kt with gusts up to 20 kt. Seas around 2 ft. Wave Detail: SE 1 ft at 5 seconds and E 1 ft at 9 seconds. Showers likely, mainly in the morning. .WED NIGHT...NE winds 5 to 10 kt. Gusts up to 20 kt in the evening. Seas around 2 ft. .THU THROUGH FRI NIGHT...S winds 5 to 10 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. $$ ANZ234-291500- Buzzards Bay- 1003 PM EDT Sun Apr 28 2024 .OVERNIGHT...W winds 5 to 10 kt. Seas 1 foot or less. Wave Detail: SW 1 ft at 4 seconds and SE 1 ft at 9 seconds. Patchy fog. A chance of showers. Vsby 1 to 3 NM, decreasing to 1 NM or less. .MON...N winds 5 to 10 kt, becoming E in the afternoon. Gusts up to 20 kt. Seas around 2 ft. Wave Detail: W 1 ft at 4 seconds and E 1 ft at 9 seconds. .MON NIGHT...S winds around 5 kt, becoming W around 5 kt after midnight. Seas 1 foot or less. Wave Detail: S 1 ft at 5 seconds and E 1 ft at 6 seconds. Patchy fog. Vsby 1 to 3 NM. .TUE...E winds 5 to 10 kt, becoming SE in the afternoon. Seas around 2 ft. Wave Detail: S 1 ft at 5 seconds and E 1 ft at 11 seconds. .TUE NIGHT...E winds 5 to 10 kt. Seas around 2 ft. Wave Detail: SE 1 ft at 3 seconds and E 1 ft at 8 seconds. A chance of showers. .WED...NE winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft. Wave Detail: E 1 ft at 4 seconds and E 1 ft at 9 seconds. Showers likely, mainly in the morning. .WED NIGHT...NE winds 5 to 10 kt. Seas around 2 ft. .THU THROUGH FRI NIGHT...S winds 5 to 10 kt with gusts up to 20 kt. Seas around 2 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ235-291500- Rhode Island Sound- 1003 PM EDT Sun Apr 28 2024 .OVERNIGHT...W winds 5 to 10 kt. Gusts up to 20 kt. Seas around 2 ft. Wave Detail: S 2 ft at 4 seconds and SE 2 ft at 9 seconds. Patchy fog. A chance of showers. Vsby 1 to 3 NM, decreasing to 1 NM or less. .MON...N winds 5 to 10 kt, becoming E in the afternoon. Seas around 2 ft. Wave Detail: SW 2 ft at 4 seconds and E 2 ft at 9 seconds. Patchy fog in the morning. .MON NIGHT...S winds 5 to 10 kt, becoming SE after midnight. Seas around 2 ft. Wave Detail: S 2 ft at 5 seconds and E 1 ft at 11 seconds. Patchy fog. Vsby 1 to 3 NM. .TUE...E winds 5 to 10 kt. Seas around 2 ft. Wave Detail: S 2 ft at 6 seconds and E 1 ft at 12 seconds. Patchy fog in the morning with vsby 1 to 3 NM. .TUE NIGHT AND WED...NE winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft. Wave Detail: SE 2 ft at 4 seconds and E 1 ft at 11 seconds. A chance of showers. .WED NIGHT...NE winds 5 to 10 kt. Gusts up to 20 kt in the evening. Seas around 2 ft. Wave Detail: E 2 ft at 5 seconds and S 2 ft at 6 seconds. .THU THROUGH FRI NIGHT...S winds 5 to 10 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. $$ ANZ237-291500- Block Island Sound- 1003 PM EDT Sun Apr 28 2024 .OVERNIGHT...W winds 5 to 10 kt. Seas around 2 ft. Wave Detail: S 2 ft at 4 seconds and SE 2 ft at 9 seconds. Patchy fog. A chance of showers. Vsby 1 to 3 NM. .MON...NW winds 5 to 10 kt, becoming SE in the afternoon. Seas around 2 ft. Wave Detail: SW 2 ft at 4 seconds and SE 2 ft at 9 seconds. .MON NIGHT...S winds 5 to 10 kt, becoming E after midnight. Seas around 2 ft. Wave Detail: S 2 ft at 5 seconds and E 2 ft at 10 seconds. Patchy fog. Vsby 1 to 3 NM. .TUE...E winds 5 to 10 kt. Seas around 2 ft. Wave Detail: S 2 ft at 6 seconds and E 2 ft at 12 seconds. .TUE NIGHT AND WED...NE winds 5 to 10 kt with gusts up to 20 kt. Seas around 2 ft. Wave Detail: SE 2 ft at 4 seconds and E 1 ft at 11 seconds. A chance of showers. .WED NIGHT...NE winds 5 to 10 kt. Gusts up to 20 kt in the evening. Seas around 2 ft. Wave Detail: SE 2 ft at 6 seconds. .THU THROUGH FRI...SW winds 5 to 10 kt with gusts up to 20 kt. Seas around 2 ft. .FRI NIGHT...S winds around 10 kt with gusts up to 20 kt. Seas around 2 ft. A chance of showers. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ230-291500- Boston Harbor- 1003 PM EDT Sun Apr 28 2024 .OVERNIGHT...W winds 5 to 10 kt. Waves 1 foot or less. .MON...N winds 5 to 10 kt with gusts up to 20 kt, becoming E in the afternoon. Waves 1 foot or less. .MON NIGHT...SE winds around 5 kt, becoming E 10 to 15 kt after midnight. Waves 1 foot or less. .TUE...E winds 10 to 15 kt. Gusts up to 20 kt in the afternoon. Waves around 2 ft. .TUE NIGHT AND WED...E winds 10 to 15 kt with gusts up to 20 kt. Waves around 2 ft. Showers likely through the day. .WED NIGHT...E winds 5 to 10 kt, becoming N after midnight. Waves around 2 ft in the evening, then 1 foot or less. .THU THROUGH FRI...S winds 5 to 10 kt with gusts up to 20 kt. Waves around 2 ft. .FRI NIGHT...SE winds around 10 kt with gusts up to 20 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. $$ ANZ236-291500- Narragansett Bay- 1003 PM EDT Sun Apr 28 2024 .OVERNIGHT...W winds 5 to 10 kt. Waves 1 foot or less. Patchy fog. A chance of showers. Vsby 1 to 3 NM. .MON...N winds 5 to 10 kt with gusts up to 20 kt, becoming E in the afternoon. Waves 1 foot or less, then around 2 ft in the afternoon. .MON NIGHT...S winds 5 to 10 kt, diminishing to around 5 kt after midnight. Waves around 2 ft in the evening, then 1 foot or less. Patchy fog. Vsby 1 to 3 NM. .TUE...E winds 5 to 10 kt, becoming SE 10 to 15 kt with gusts up to 20 kt in the afternoon. Waves 1 foot or less. .TUE NIGHT...SE winds 10 to 15 kt with gusts up to 20 kt, becoming E 5 to 10 kt after midnight. Waves 1 foot or less. A chance of showers. .WED...NE winds 5 to 10 kt with gusts up to 20 kt. Waves around 2 ft. Showers likely, mainly in the morning. .WED NIGHT...NE winds 5 to 10 kt. Waves around 2 ft. .THU THROUGH FRI...SW winds 5 to 10 kt with gusts up to 20 kt. Waves around 2 ft. .FRI NIGHT...S winds around 10 kt with gusts up to 20 kt. Waves around 2 ft. A chance of showers. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ 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