Coastal Waters Forecast
Issued by NWS Boston, MA
Issued by NWS Boston, MA
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477 FZUS51 KBOX 241705 CWFBOX Coastal Waters Forecast for Massachusetts and Rhode Island National Weather Service Boston/Norton MA 104 PM EDT Mon Jun 24 2024 Coastal waters from the Merrimack River MA to Watch Hill RI out to 25 NM ANZ200-250600- 104 PM EDT Mon Jun 24 2024 .Synopsis for Massachusetts and Rhode Island coastal waters... A cold front moves across the waters today followed by NW flow tonight. High pres builds S of the waters Tue. Another cold front moves E from the Gt lakes Wed, crossing New Eng and the waters late Wed night and Thu. High pres builds over the waters Fri into Sat. $$ ANZ250-250600- Coastal waters east of Ipswich Bay and the Stellwagen Bank National Marine Sanctuary- 104 PM EDT Mon Jun 24 2024 .THIS AFTERNOON...W winds 5 to 10 kt with gusts up to 20 kt. Seas 2 to 3 ft. Wave Detail: SE 3 ft at 8 seconds and SW 1 foot at 3 seconds. .TONIGHT...NW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Wave Detail: NW 3 ft at 4 seconds and SE 3 ft at 9 seconds. .TUE...NW winds 10 to 15 kt with gusts up to 20 kt, becoming SW 5 to 10 kt in the afternoon. Seas 2 to 3 ft. Wave Detail: N 3 ft at 5 seconds and SE 3 ft at 9 seconds. .TUE NIGHT...SW winds 10 to 15 kt. Gusts up to 20 kt after midnight. Seas 2 to 3 ft. Wave Detail: SW 2 ft at 4 seconds and SE 2 ft at 8 seconds. .WED...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to 5 ft. Wave Detail: S 3 ft at 5 seconds and SE 2 ft at 9 seconds. A chance of showers in the afternoon. .WED NIGHT...SW winds 15 to 20 kt, diminishing to 10 to 15 kt after midnight. Gusts up to 25 kt. Seas 3 to 5 ft. Wave Detail: S 3 ft at 5 seconds and SE 1 foot at 9 seconds. Showers likely. .THU...SW winds 5 to 10 kt. Seas 2 to 4 ft. A chance of showers. .THU NIGHT THROUGH FRI NIGHT...S winds 5 to 10 kt. Seas 2 to 3 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ251-250600- Massachusetts Bay and Ipswich Bay- 104 PM EDT Mon Jun 24 2024 .THIS AFTERNOON...W winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft. Wave Detail: S 2 ft at 9 seconds and SW 1 foot at 3 seconds. .TONIGHT...NW winds 10 to 15 kt. Gusts up to 20 kt in the evening. Seas around 2 ft. Wave Detail: S 2 ft at 9 seconds and W 1 foot at 2 seconds. .TUE...NW winds 5 to 10 kt, becoming SW in the afternoon. Seas around 2 ft. Wave Detail: N 1 foot at 4 seconds and SE 1 foot at 6 seconds. .TUE NIGHT...SW winds 10 to 15 kt. Gusts up to 20 kt after midnight. Seas around 2 ft. Wave Detail: SW 2 ft at 3 seconds and NE 1 foot at 5 seconds. .WED...SW winds around 15 kt with gusts up to 25 kt. Seas 2 to 3 ft. Wave Detail: S 2 ft at 4 seconds and SE 1 foot at 10 seconds. A chance of showers in the afternoon. .WED NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Wave Detail: S 2 ft at 4 seconds and SE 1 foot at 10 seconds. Showers likely. .THU...W winds 5 to 10 kt. Seas around 2 ft. A chance of showers. .THU NIGHT THROUGH FRI 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. $$ ANZ231-250600- Cape Cod Bay- 104 PM EDT Mon Jun 24 2024 .THIS AFTERNOON...NW winds 5 to 10 kt with gusts up to 20 kt. Seas around 2 ft. Wave Detail: S 2 ft at 9 seconds and SE 2 ft at 9 seconds. .TONIGHT...W winds 5 to 10 kt with gusts up to 20 kt, becoming NW 10 to 15 kt after midnight. Seas around 2 ft. Wave Detail: NW 2 ft at 3 seconds and S 2 ft at 9 seconds. .TUE...NW winds 10 to 15 kt with gusts up to 20 kt, becoming W 5 to 10 kt in the afternoon. Seas around 2 ft. Wave Detail: NW 2 ft at 4 seconds and S 2 ft at 9 seconds. .TUE NIGHT...SW winds 5 to 10 kt, increasing to 10 to 15 kt with gusts up to 20 kt after midnight. Seas around 2 ft. Wave Detail: SW 1 foot at 3 seconds and N 1 foot at 5 seconds. .WED...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 4 ft. Wave Detail: S 3 ft at 7 seconds and SW 2 ft at 3 seconds. .WED NIGHT...SW winds 15 to 20 kt, diminishing to 10 to 15 kt after midnight. Gusts up to 25 kt. Seas 2 to 4 ft. Wave Detail: S 2 ft at 5 seconds and SE 1 foot at 10 seconds. Showers likely. .THU...SW winds 5 to 10 kt. Seas around 2 ft. A chance of showers. .THU NIGHT THROUGH FRI NIGHT...S winds 5 to 10 kt. Seas around 2 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ254-250600- Coastal waters from Provincetown MA to Chatham MA to Nantucket MA out 20 nm- 104 PM EDT Mon Jun 24 2024 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT... .THIS AFTERNOON...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 4 to 6 ft. Wave Detail: S 5 ft at 9 seconds and W 1 foot at 4 seconds. Isolated showers. .TONIGHT...W winds 10 to 15 kt with gusts up to 25 kt. Seas 4 to 6 ft. Wave Detail: S 4 ft at 9 seconds and W 2 ft at 3 seconds. .TUE...NW winds 10 to 15 kt with gusts up to 20 kt, becoming W 5 to 10 kt in the afternoon. Seas 3 to 5 ft. Wave Detail: S 4 ft at 9 seconds and NW 2 ft at 4 seconds. .TUE NIGHT...SW winds 10 to 15 kt. Gusts up to 20 kt after midnight. Seas 2 to 4 ft. Wave Detail: SW 3 ft at 4 seconds and SE 3 ft at 9 seconds. .WED...SW winds 15 to 20 kt with gusts up to 30 kt. Seas 4 to 6 ft. Wave Detail: SW 5 ft at 6 seconds and SE 2 ft at 9 seconds. .WED NIGHT...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 4 to 6 ft. Wave Detail: S 5 ft at 7 seconds and W 1 foot at 4 seconds. A chance of showers in the evening. Showers likely after midnight. .THU...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 5 ft. Showers likely. .THU NIGHT THROUGH FRI NIGHT...SE winds 5 to 10 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. $$ ANZ255-250600- Coastal Waters extending out to 25 nm South of Marthas Vineyard and Nantucket- 104 PM EDT Mon Jun 24 2024 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT... .THIS AFTERNOON...W winds 15 to 20 kt with gusts up to 25 kt. Seas 5 to 6 ft. Wave Detail: S 6 ft at 9 seconds and SW 1 foot at 3 seconds. Isolated showers. .TONIGHT...W winds 15 to 20 kt with gusts up to 25 kt, becoming NW 10 to 15 kt after midnight. Seas 4 to 6 ft. Wave Detail: S 6 ft at 9 seconds and W 1 foot at 3 seconds. .TUE...NW winds 10 to 15 kt, becoming W in the afternoon. Seas 3 to 5 ft, subsiding to 2 to 3 ft in the afternoon. Wave Detail: S 5 ft at 8 seconds and SE 2 ft at 9 seconds, becoming SW 3 ft at 8 seconds and NW 2 ft at 5 seconds. .TUE NIGHT...SW winds 10 to 15 kt, increasing to 15 to 20 kt after midnight. Seas 3 to 5 ft. Wave Detail: SW 4 ft at 5 seconds and S 3 ft at 8 seconds. .WED...SW winds 15 to 20 kt, increasing to 20 to 25 kt in the afternoon. Gusts up to 30 kt. Seas 4 to 6 ft. Wave Detail: SW 6 ft at 6 seconds and SE 2 ft at 9 seconds. .WED NIGHT...SW winds 20 to 25 kt, diminishing to 15 to 20 kt after midnight. Seas 5 to 7 ft. Wave Detail: SW 7 ft at 7 seconds and SW 1 foot at 4 seconds. A chance of showers in the evening. Showers likely after midnight. .THU...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 4 to 6 ft. Showers likely. .THU NIGHT THROUGH FRI NIGHT...SE winds 10 to 15 kt. Seas 2 to 4 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ256-250600- Coastal Waters from Montauk NY to Marthas Vineyard extending out to 20 nm South of Block Island- 104 PM EDT Mon Jun 24 2024 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT... .THIS AFTERNOON...W winds 10 to 15 kt with gusts up to 25 kt. Seas 5 to 6 ft. Wave Detail: S 6 ft at 9 seconds and W 1 foot at 3 seconds. .TONIGHT...NW winds 15 to 20 kt with gusts up to 25 kt. Seas 4 to 6 ft. Wave Detail: S 6 ft at 9 seconds and W 2 ft at 4 seconds. .TUE...NW winds 10 to 15 kt, becoming W in the afternoon. Seas 2 to 4 ft. Wave Detail: S 4 ft at 8 seconds and NW 2 ft at 4 seconds. .TUE NIGHT...SW winds 10 to 15 kt, increasing to 15 to 20 kt after midnight. Gusts up to 25 kt. Seas 3 to 5 ft. Wave Detail: SW 4 ft at 5 seconds and S 4 ft at 8 seconds. .WED...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 5 to 7 ft. Wave Detail: SW 6 ft at 7 seconds and SE 2 ft at 9 seconds. .WED NIGHT...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 5 to 7 ft. Wave Detail: S 7 ft at 7 seconds and SW 1 foot at 4 seconds. Showers likely. .THU...SW winds 10 to 15 kt. Seas 4 to 5 ft. A chance of showers. .THU NIGHT THROUGH FRI NIGHT...SE winds 5 to 10 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. $$ ANZ232-250600- Nantucket Sound- 104 PM EDT Mon Jun 24 2024 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 8 PM EDT THIS EVENING... .THIS AFTERNOON...W winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 4 ft. Wave Detail: SW 2 ft at 3 seconds and SW 2 ft at 9 seconds. .TONIGHT...W winds 15 to 20 kt, becoming NW 10 to 15 kt after midnight. Gusts up to 25 kt. Seas 2 to 4 ft. Wave Detail: SW 3 ft at 9 seconds and W 2 ft at 3 seconds. .TUE...NW winds 10 to 15 kt with gusts up to 20 kt, becoming W 5 to 10 kt in the afternoon. Seas around 2 ft. Wave Detail: N 2 ft at 4 seconds and SW 2 ft at 8 seconds. .TUE NIGHT...SW winds 10 to 15 kt, increasing to 15 to 20 kt after midnight. Seas 2 to 3 ft. Wave Detail: SW 3 ft at 4 seconds and N 1 foot at 4 seconds. .WED...SW winds 15 to 20 kt with gusts up to 30 kt. Seas 3 to 5 ft. Wave Detail: SW 3 ft at 4 seconds and S 3 ft at 7 seconds. .WED NIGHT...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to 5 ft. Wave Detail: SW 3 ft at 4 seconds and SW 3 ft at 7 seconds. A chance of showers in the evening. Showers likely after midnight. .THU...SW winds 10 to 15 kt. Seas 2 to 3 ft. Showers likely. .THU NIGHT THROUGH FRI NIGHT...SE winds 10 to 15 kt. Seas around 2 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ233-250600- Vineyard Sound- 104 PM EDT Mon Jun 24 2024 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 8 PM EDT THIS EVENING... .THIS AFTERNOON...W winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 4 ft. Wave Detail: SW 4 ft at 8 seconds and SW 1 foot at 3 seconds. .TONIGHT...W winds 15 to 20 kt with gusts up to 25 kt, becoming NW around 10 kt after midnight. Seas 2 to 4 ft. Wave Detail: SW 4 ft at 9 seconds and W 1 foot at 4 seconds. .TUE...NW winds 5 to 10 kt, becoming SW in the afternoon. Seas around 2 ft. Wave Detail: SW 2 ft at 8 seconds and SE 2 ft at 9 seconds. .TUE NIGHT...SW winds 10 to 15 kt, increasing to 15 to 20 kt after midnight. Seas 2 to 4 ft. Wave Detail: SW 3 ft at 5 seconds and S 2 ft at 8 seconds. .WED...SW winds 15 to 20 kt with gusts up to 30 kt. Seas 3 to 5 ft. Wave Detail: SW 5 ft at 7 seconds and SW 2 ft at 4 seconds. .WED NIGHT...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to 5 ft. Wave Detail: SW 5 ft at 7 seconds and SW 2 ft at 4 seconds. Showers likely. .THU...SW winds around 10 kt. Seas 2 to 3 ft. Showers likely. .THU NIGHT THROUGH FRI NIGHT...SE 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. $$ ANZ234-250600- Buzzards Bay- 104 PM EDT Mon Jun 24 2024 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 8 PM EDT THIS EVENING... .THIS AFTERNOON...W winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 3 ft. Wave Detail: SW 3 ft at 8 seconds and SW 2 ft at 4 seconds. .TONIGHT...NW winds 10 to 15 kt. Gusts up to 25 kt in the evening. Seas 2 to 3 ft. Wave Detail: SW 3 ft at 8 seconds and W 2 ft at 4 seconds. .TUE...NW winds 5 to 10 kt, becoming SW in the afternoon. Seas around 2 ft. Wave Detail: SW 2 ft at 8 seconds and SE 2 ft at 9 seconds. .TUE NIGHT...SW winds 10 to 15 kt. Gusts up to 20 kt after midnight. Seas 2 to 3 ft. Wave Detail: SW 3 ft at 4 seconds and SE 2 ft at 9 seconds. .WED...SW winds 15 to 20 kt with gusts up to 30 kt. Seas 2 to 4 ft. Wave Detail: S 4 ft at 7 seconds and SW 3 ft at 4 seconds. .WED NIGHT...SW winds 15 to 20 kt, diminishing to 10 to 15 kt after midnight. Gusts up to 25 kt. Seas 2 to 4 ft. Wave Detail: SW 4 ft at 7 seconds and SW 3 ft at 4 seconds. Showers likely. .THU...SW winds around 10 kt. Seas 2 to 3 ft. A chance of showers. .THU NIGHT THROUGH FRI NIGHT...SE winds 5 to 10 kt. Seas around 2 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ235-250600- Rhode Island Sound- 104 PM EDT Mon Jun 24 2024 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 8 PM EDT THIS EVENING... .THIS AFTERNOON...W winds 15 to 20 kt with gusts up to 25 kt. Seas 4 to 6 ft. Wave Detail: S 6 ft at 9 seconds and SW 1 foot at 4 seconds. .TONIGHT...W winds 15 to 20 kt, becoming NW 10 to 15 kt after midnight. Gusts up to 25 kt. Seas 3 to 5 ft. Wave Detail: S 5 ft at 9 seconds and W 2 ft at 5 seconds. .TUE...NW winds 5 to 10 kt, becoming SW 10 to 15 kt in the afternoon. Seas around 2 ft. Wave Detail: W 2 ft at 4 seconds and S 2 ft at 8 seconds. .TUE NIGHT...SW winds 10 to 15 kt, increasing to 15 to 20 kt after midnight. Seas 2 to 4 ft. Wave Detail: SW 4 ft at 5 seconds and S 3 ft at 8 seconds. .WED...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 4 to 6 ft. Wave Detail: S 6 ft at 7 seconds and SE 2 ft at 9 seconds. .WED NIGHT...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 4 to 6 ft. Wave Detail: S 6 ft at 7 seconds and SW 1 foot at 4 seconds. Showers likely. .THU...SW winds around 10 kt. Seas 3 to 4 ft. A chance of showers. .THU NIGHT THROUGH FRI NIGHT...SE 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. $$ ANZ237-250600- Block Island Sound- 104 PM EDT Mon Jun 24 2024 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 8 PM EDT THIS EVENING... .THIS AFTERNOON...W winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to 5 ft. Wave Detail: S 5 ft at 9 seconds and W 2 ft at 4 seconds. .TONIGHT...NW winds 15 to 20 kt, diminishing to 10 to 15 kt after midnight. Gusts up to 25 kt. Seas 3 to 5 ft, subsiding to 2 to 3 ft after midnight. Wave Detail: S 5 ft at 9 seconds and W 2 ft at 4 seconds, becoming S 3 ft at 9 seconds and W 2 ft at 4 seconds. .TUE...NW winds 5 to 10 kt, becoming SW in the afternoon. Seas around 2 ft. Wave Detail: S 2 ft at 8 seconds and SE 2 ft at 9 seconds. .TUE NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. Wave Detail: S 3 ft at 8 seconds and SW 2 ft at 3 seconds. .WED...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 4 to 6 ft. Wave Detail: S 4 ft at 7 seconds and W 2 ft at 4 seconds. .WED NIGHT...SW winds 15 to 20 kt, diminishing to 10 to 15 kt after midnight. Gusts up to 25 kt. Seas 4 to 6 ft. Wave Detail: S 5 ft at 7 seconds and W 1 foot at 4 seconds. Showers likely. .THU...W winds 5 to 10 kt. Seas 3 to 4 ft. A chance of showers. .THU NIGHT THROUGH FRI NIGHT...SE winds 5 to 10 kt. Seas 2 to 3 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ230-250600- Boston Harbor- 104 PM EDT Mon Jun 24 2024 .THIS AFTERNOON...W winds 10 to 15 kt with gusts up to 20 kt. Waves 1 foot or less. .TONIGHT...NW winds 10 to 15 kt. Gusts up to 20 kt in the evening. Waves 1 foot or less. .TUE...NW winds 5 to 10 kt, becoming SW in the afternoon. Waves 1 foot or less. .TUE NIGHT...S winds 5 to 10 kt, becoming SW 10 to 15 kt after midnight. Waves 1 foot or less. .WED...SW winds 10 to 15 kt with gusts up to 20 kt. Waves around 2 ft. A chance of showers in the afternoon. .WED NIGHT...SW winds 10 to 15 kt. Gusts up to 20 kt in the evening. Waves around 2 ft. Showers likely. Scattered tstms in the evening. .THU...W winds 5 to 10 kt. Waves 1 foot or less. A chance of showers. .THU NIGHT THROUGH FRI NIGHT...S winds 5 to 10 kt. Waves 1 foot or less. Winds and waves higher in and near tstms. 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. $$ ANZ236-250600- Narragansett Bay- 104 PM EDT Mon Jun 24 2024 .THIS AFTERNOON...W winds 10 to 15 kt with gusts up to 25 kt. Waves 2 to 3 ft. .TONIGHT...NW winds 10 to 15 kt. Gusts up to 20 kt in the evening. Waves 2 to 3 ft. .TUE...NW winds 5 to 10 kt, becoming W in the afternoon. Waves around 2 ft. .TUE NIGHT...SW winds 5 to 10 kt, increasing to 10 to 15 kt with gusts up to 20 kt after midnight. Waves 2 to 4 ft. .WED...SW winds 15 to 20 kt with gusts up to 25 kt. Waves 3 to 5 ft. .WED NIGHT...SW winds 10 to 15 kt with gusts up to 25 kt. Waves 3 to 5 ft. Showers likely. .THU...W winds 5 to 10 kt. Waves 2 to 4 ft. A chance of showers. .THU NIGHT THROUGH FRI NIGHT...S winds 5 to 10 kt. Waves 2 to 3 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ 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