Coastal Waters Forecast
Issued by NWS Boston, MA
Issued by NWS Boston, MA
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429 FZUS51 KBOX 030805 CWFBOX Coastal Waters Forecast for Massachusetts and Rhode Island National Weather Service Boston/Norton MA 405 AM EDT Wed Jul 3 2024 Coastal waters from the Merrimack River MA to Watch Hill RI out to 25 NM ANZ200-032100- 405 AM EDT Wed Jul 3 2024 .Synopsis for Massachusetts and Rhode Island coastal waters... High pressure over the waters of southern New England for Wednesday, but will be short-lived as it drifts east throughout the day and will move well off shore by Independence Day with a few showers possible. Unsettled weather returns this weekend with periods of rain and thunderstorms. $$ ANZ250-032100- Coastal waters east of Ipswich Bay and the Stellwagen Bank National Marine Sanctuary- 405 AM EDT Wed Jul 3 2024 .TODAY...SW winds around 5 kt, becoming S this afternoon. Seas around 2 ft. Wave Detail: SE 2 ft at 8 seconds and S 1 foot at 2 seconds. .TONIGHT...S winds around 10 kt. Seas 2 to 3 ft. Wave Detail: S 2 ft at 3 seconds and SE 2 ft at 8 seconds. .THU...S winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Wave Detail: SW 2 ft at 3 seconds and E 2 ft at 8 seconds. .THU NIGHT...SW winds 10 to 15 kt. Gusts up to 20 kt in the evening. Seas 2 to 4 ft. Wave Detail: S 3 ft at 4 seconds and E 3 ft at 8 seconds. .FRI...S winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: E 3 ft at 8 seconds and W 1 foot at 3 seconds. .FRI NIGHT...S winds around 10 kt. Seas 2 to 3 ft. Wave Detail: E 2 ft at 8 seconds and SW 1 foot at 3 seconds. A chance of showers after midnight. .SAT THROUGH SUN...S winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. A chance of showers. Vsby 1 to 3 NM. .SUN NIGHT...SW winds 5 to 10 kt. Seas 2 to 3 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ251-032100- Massachusetts Bay and Ipswich Bay- 405 AM EDT Wed Jul 3 2024 .TODAY...SW winds around 5 kt, becoming SE 10 to 15 kt with gusts up to 20 kt this afternoon. Seas around 2 ft. Wave Detail: E 2 ft at 8 seconds and SE 1 foot at 3 seconds. .TONIGHT...S winds 10 to 15 kt with gusts up to 20 kt, becoming SW 5 to 10 kt after midnight. Seas around 2 ft. Wave Detail: SE 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 around 2 ft. Wave Detail: SW 2 ft at 3 seconds and E 2 ft at 8 seconds. Scattered showers in the afternoon. .THU NIGHT...SW winds 5 to 10 kt. Gusts up to 20 kt in the evening. Seas 2 to 3 ft. Wave Detail: S 2 ft at 3 seconds and E 2 ft at 8 seconds. .FRI...S winds 5 to 10 kt. Seas around 2 ft. Wave Detail: E 2 ft at 8 seconds and W 1 foot at 3 seconds. .FRI NIGHT...S winds around 10 kt. Seas around 2 ft. Wave Detail: E 2 ft at 8 seconds and S 1 foot at 3 seconds. A chance of showers after midnight. .SAT THROUGH SUN...S winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. A chance of showers. .SUN 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. $$ ANZ231-032100- Cape Cod Bay- 405 AM EDT Wed Jul 3 2024 .TODAY...W winds around 5 kt, becoming S this afternoon. Seas around 2 ft. Wave Detail: SE 2 ft at 8 seconds and S 1 foot at 2 seconds. .TONIGHT...S winds 5 to 10 kt. Seas around 2 ft. Wave Detail: S 1 foot at 2 seconds and SW 1 foot at 2 seconds. .THU...SW winds 5 to 10 kt, increasing to 10 to 15 kt in the afternoon. Gusts up to 20 kt. Seas around 2 ft. Wave Detail: SW 2 ft at 3 seconds and E 2 ft at 8 seconds. Patchy fog in the morning with vsby 1 to 3 NM. .THU NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt, diminishing to 5 to 10 kt after midnight. Seas around 2 ft. Wave Detail: E 2 ft at 8 seconds and SW 1 foot at 3 seconds. .FRI AND FRI NIGHT...S winds 5 to 10 kt. Seas around 2 ft. Wave Detail: E 2 ft at 8 seconds and SW 1 foot at 3 seconds. A chance of showers through the day. A chance of showers after midnight. Vsby 1 to 3 NM. .SAT THROUGH SUN...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Wave Detail: SW 2 ft at 3 seconds and E 2 ft at 8 seconds. A chance of showers. .SUN NIGHT...SW winds 5 to 10 kt. Seas around 2 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ254-032100- Coastal waters from Provincetown MA to Chatham MA to Nantucket MA out 20 nm- 405 AM EDT Wed Jul 3 2024 .TODAY...W winds around 5 kt, becoming SW this afternoon. Seas around 2 ft. Wave Detail: E 2 ft at 7 seconds and SE 2 ft at 8 seconds. .TONIGHT...SW winds 5 to 10 kt. Seas around 2 ft. Wave Detail: E 2 ft at 8 seconds and SE 2 ft at 8 seconds. Patchy fog. Vsby 1 NM or less. .THU...S winds 5 to 10 kt, increasing to 10 to 15 kt in the afternoon. Gusts up to 20 kt. Seas 2 to 3 ft. Wave Detail: E 3 ft at 8 seconds and S 2 ft at 3 seconds. Patchy fog in the morning with vsby 1 NM or less. .THU NIGHT...SW winds 10 to 15 kt. Gusts up to 20 kt in the evening. Seas 2 to 3 ft. Wave Detail: E 3 ft at 8 seconds and SW 2 ft at 4 seconds. .FRI...SW winds around 10 kt. Seas 2 to 3 ft. Wave Detail: E 3 ft at 8 seconds and SW 2 ft at 4 seconds. Patchy fog in the morning. A chance of showers in the morning with vsby 1 to 3 NM. .FRI NIGHT...S winds around 10 kt. Seas 2 to 3 ft. Wave Detail: SW 2 ft at 4 seconds and E 2 ft at 8 seconds. A chance of showers after midnight. .SAT THROUGH SUN...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. A chance of showers. .SUN NIGHT...SW winds 10 to 15 kt with gusts up to 20 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. $$ ANZ255-032100- Coastal Waters extending out to 25 nm South of Marthas Vineyard and Nantucket- 405 AM EDT Wed Jul 3 2024 .TODAY...W winds around 5 kt. Seas around 2 ft. Wave Detail: SE 2 ft at 6 seconds. .TONIGHT...SW winds 5 to 10 kt. Seas around 2 ft. Wave Detail: SE 2 ft at 8 seconds and SW 1 foot at 3 seconds. Patchy fog. Vsby 1 NM or less. .THU...S winds 5 to 10 kt, becoming SW 10 to 15 kt in the afternoon. Gusts up to 20 kt. Seas 2 to 3 ft. Wave Detail: E 3 ft at 8 seconds and SW 2 ft at 4 seconds. Patchy fog in the morning with vsby 1 NM or less. .THU NIGHT...SW winds 10 to 15 kt. Gusts up to 20 kt in the evening. Seas 2 to 3 ft. Wave Detail: E 3 ft at 8 seconds and SW 2 ft at 4 seconds. .FRI...SW winds around 10 kt. Seas 2 to 3 ft. Wave Detail: SW 3 ft at 6 seconds and E 3 ft at 8 seconds. A chance of showers. Patchy fog in the morning with vsby 1 to 3 NM. .FRI NIGHT...S winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: SW 3 ft at 6 seconds and E 2 ft at 7 seconds. A chance of showers after midnight. .SAT THROUGH SUN...SW winds 15 to 20 kt. Seas 3 to 5 ft. A chance of showers. .SUN NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 4 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ256-032100- Coastal Waters from Montauk NY to Marthas Vineyard extending out to 20 nm South of Block Island- 405 AM EDT Wed Jul 3 2024 .TODAY...SW winds 5 to 10 kt. Seas around 2 ft. Wave Detail: SE 2 ft at 7 seconds. .TONIGHT...SW winds 5 to 10 kt. Seas around 2 ft. Wave Detail: SE 2 ft at 8 seconds and SW 1 foot at 2 seconds. Patchy fog. Vsby 1 NM or less. .THU...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Wave Detail: SW 2 ft at 3 seconds and SE 2 ft at 8 seconds. Patchy fog in the morning with vsby 1 NM or less. .THU NIGHT...SW winds 10 to 15 kt. Gusts up to 20 kt in the evening. Seas around 3 ft. Wave Detail: SW 3 ft at 5 seconds and E 3 ft at 9 seconds. Patchy fog after midnight. A chance of showers after midnight with vsby 1 to 3 NM. .FRI...SW winds around 10 kt. Seas around 3 ft. Wave Detail: SW 3 ft at 5 seconds and E 3 ft at 8 seconds. A chance of showers. Patchy fog in the morning with vsby 1 to 3 NM. .FRI NIGHT...S winds 10 to 15 kt. Seas 3 to 4 ft. Wave Detail: S 3 ft at 6 seconds and E 2 ft at 8 seconds. A chance of showers after midnight. .SAT THROUGH SUN...SW winds 15 to 20 kt. Seas 3 to 5 ft. A chance of showers. .SUN 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. $$ ANZ232-032100- Nantucket Sound- 405 AM EDT Wed Jul 3 2024 .TODAY...W winds around 5 kt, becoming SW this afternoon. Seas around 2 ft. Wave Detail: SE 2 ft at 7 seconds. .TONIGHT...SW winds 5 to 10 kt. Seas around 2 ft. Wave Detail: SW 1 foot at 3 seconds and SE 1 foot at 8 seconds. Patchy fog after midnight with vsby 1 NM or less. .THU...SW winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft. Wave Detail: SW 2 ft at 3 seconds and E 1 foot at 8 seconds. Patchy fog in the morning with vsby 1 to 3 NM. .THU NIGHT...SW winds 10 to 15 kt. Gusts up to 20 kt in the evening. Seas around 2 ft. Wave Detail: SW 2 ft at 3 seconds and SW 1 foot at 3 seconds. Patchy fog after midnight with vsby 1 to 3 NM. .FRI...SW winds around 10 kt. Seas around 2 ft. Wave Detail: SW 2 ft at 3 seconds and E 1 foot at 8 seconds. A chance of showers. Patchy fog in the morning with vsby 1 to 3 NM. .FRI NIGHT...S winds 10 to 15 kt. Seas around 2 ft. Wave Detail: SW 2 ft at 3 seconds and E 1 foot at 8 seconds. A chance of showers after midnight. .SAT THROUGH SUN...SW winds 15 to 20 kt. Seas 2 to 3 ft. A chance of showers. .SUN NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ233-032100- Vineyard Sound- 405 AM EDT Wed Jul 3 2024 .TODAY...SW winds 5 to 10 kt. Seas around 2 ft. Wave Detail: SE 2 ft at 6 seconds. .TONIGHT...SW winds 5 to 10 kt. Seas around 2 ft. Wave Detail: SW 1 foot at 2 seconds and S 1 foot at 3 seconds. Patchy fog. Vsby 1 to 3 NM, decreasing to 1 NM or less after midnight. .THU...SW winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft. Wave Detail: SW 2 ft at 4 seconds and SE 1 foot at 8 seconds. Patchy fog in the morning with vsby 1 to 3 NM. .THU NIGHT...SW winds around 10 kt. Gusts up to 20 kt in the evening. Seas around 2 ft. Wave Detail: SW 2 ft at 4 seconds and SW 1 foot at 3 seconds. Patchy fog after midnight. A chance of showers after midnight with vsby 1 to 3 NM. .FRI...SW winds 5 to 10 kt. Seas around 2 ft. Wave Detail: SW 2 ft at 5 seconds and E 1 foot at 8 seconds. A chance of showers. Patchy fog in the morning with vsby 1 to 3 NM. .FRI NIGHT...S winds around 10 kt. Seas around 2 ft. Wave Detail: SW 2 ft at 5 seconds and E 1 foot at 8 seconds. A chance of showers after midnight. .SAT THROUGH SUN...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. A chance of showers. .SUN 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. $$ ANZ234-032100- Buzzards Bay- 405 AM EDT Wed Jul 3 2024 .TODAY...W winds around 5 kt, becoming SW this afternoon. Seas around 2 ft. Wave Detail: SE 2 ft at 7 seconds. .TONIGHT...SW winds 5 to 10 kt. Seas around 2 ft. Wave Detail: SW 1 foot at 2 seconds and SW 1 foot at 3 seconds. Patchy fog. Vsby 1 to 3 NM, decreasing to 1 NM or less after midnight. .THU...SW winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 4 ft. Wave Detail: SW 2 ft at 4 seconds and SE 1 foot at 8 seconds. Patchy fog in the morning with vsby 1 to 3 NM. .THU NIGHT...SW winds around 10 kt. Gusts up to 20 kt in the evening. Seas around 2 ft. Wave Detail: SW 2 ft at 4 seconds and SW 1 foot at 3 seconds. A chance of showers after midnight with vsby 1 to 3 NM. .FRI...SW winds 5 to 10 kt. Seas 1 foot or less. Wave Detail: SW 1 foot at 4 seconds and E 1 foot at 8 seconds. A chance of showers. Patchy fog in the morning with vsby 1 to 3 NM. .FRI NIGHT...S winds around 10 kt. Seas 1 foot or less, then around 2 ft after midnight. Wave Detail: SW 1 foot at 5 seconds and E 1 foot at 8 seconds, becoming SW 2 ft at 5 seconds and E 1 foot at 8 seconds. A chance of showers after midnight. .SAT THROUGH SUN...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. A chance of showers. .SUN NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ235-032100- Rhode Island Sound- 405 AM EDT Wed Jul 3 2024 .TODAY...W winds around 5 kt, becoming SW this afternoon. Seas around 2 ft. Wave Detail: SE 2 ft at 7 seconds and S 1 foot at 3 seconds. .TONIGHT...SW winds 5 to 10 kt. Seas around 2 ft. Wave Detail: SE 2 ft at 7 seconds and SW 1 foot at 2 seconds. Patchy fog. Vsby 1 to 3 NM, decreasing to 1 NM or less after midnight. .THU...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Wave Detail: SW 2 ft at 4 seconds and SE 2 ft at 8 seconds. Patchy fog in the morning with vsby 1 NM or less. .THU NIGHT...SW winds 10 to 15 kt. Gusts up to 20 kt in the evening. Seas 2 to 3 ft. Wave Detail: SW 2 ft at 4 seconds and SE 2 ft at 9 seconds. A chance of showers after midnight with vsby 1 to 3 NM. .FRI...SW winds around 10 kt. Seas around 2 ft. Wave Detail: SW 2 ft at 5 seconds and SE 2 ft at 8 seconds. A chance of showers. Patchy fog in the morning with vsby 1 to 3 NM. .FRI NIGHT...S winds around 10 kt. Seas 2 to 3 ft. Wave Detail: SE 3 ft at 7 seconds and SE 2 ft at 11 seconds. A chance of showers after midnight. .SAT THROUGH SUN...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. A chance of showers. .SUN NIGHT...SW 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. $$ ANZ237-032100- Block Island Sound- 405 AM EDT Wed Jul 3 2024 .TODAY...W winds around 5 kt, becoming S this afternoon. Seas around 2 ft. Wave Detail: SE 2 ft at 7 seconds. .TONIGHT...SW winds 5 to 10 kt. Seas around 2 ft. Wave Detail: SE 2 ft at 8 seconds and SW 1 foot at 2 seconds. Patchy fog. Vsby 1 to 3 NM, decreasing to 1 NM or less after midnight. .THU...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Wave Detail: S 2 ft at 3 seconds and SE 2 ft at 8 seconds. Patchy fog in the morning with vsby 1 NM or less. .THU NIGHT...SW winds 5 to 10 kt. Gusts up to 20 kt in the evening. Seas 2 to 3 ft. Wave Detail: SW 2 ft at 3 seconds and E 2 ft at 9 seconds. Patchy fog after midnight. A chance of showers after midnight with vsby 1 to 3 NM. .FRI...SW winds 5 to 10 kt. Seas around 2 ft. Wave Detail: S 2 ft at 5 seconds and E 2 ft at 8 seconds. A chance of showers. Patchy fog in the morning with vsby 1 to 3 NM. .FRI NIGHT...S winds around 10 kt. Seas 2 to 3 ft. Wave Detail: SE 2 ft at 7 seconds and SE 1 foot at 11 seconds. A chance of showers after midnight. .SAT THROUGH SUN...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. A chance of showers. .SUN NIGHT...SW winds 5 to 10 kt. Seas 2 to 3 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ230-032100- Boston Harbor- 405 AM EDT Wed Jul 3 2024 .TODAY...SW winds around 5 kt, becoming SE 10 to 15 kt this afternoon. Waves 1 foot or less, then around 2 ft this afternoon. .TONIGHT...S winds 10 to 15 kt, becoming SW 5 to 10 kt after midnight. Waves around 2 ft in the evening, then 1 foot or less. .THU...SW winds around 10 kt. Gusts up to 20 kt in the afternoon. Waves 1 foot or less, then around 2 ft in the afternoon. Scattered showers in the afternoon. .THU NIGHT...SW winds 5 to 10 kt. Gusts up to 20 kt in the evening. Waves around 2 ft in the evening, then 1 foot or less. .FRI AND FRI NIGHT...S winds 5 to 10 kt. Waves 1 foot or less. A chance of showers through the day. A chance of showers after midnight. .SAT THROUGH SUN...SW winds 10 to 15 kt with gusts up to 20 kt. Waves around 2 ft. A chance of showers. .SUN 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. $$ ANZ236-032100- Narragansett Bay- 405 AM EDT Wed Jul 3 2024 .TODAY...SW winds around 5 kt, becoming S this afternoon. Waves 1 foot or less. .TONIGHT...SW winds 5 to 10 kt. Waves 1 foot or less. Patchy fog. Vsby 1 to 3 NM, decreasing to 1 NM or less after midnight. .THU...SW winds 5 to 10 kt with gusts up to 20 kt. Waves around 2 ft. Patchy fog in the morning with vsby 1 to 3 NM. .THU NIGHT...SW winds 5 to 10 kt. Gusts up to 20 kt in the evening. Waves around 2 ft. A chance of showers after midnight with vsby 1 to 3 NM. .FRI...SW winds 5 to 10 kt. Waves around 2 ft. A chance of showers. Patchy fog in the morning with vsby 1 to 3 NM. .FRI NIGHT...S winds 5 to 10 kt. Waves around 2 ft. A chance of showers after midnight. .SAT THROUGH SUN...SW winds 10 to 15 kt with gusts up to 20 kt. Waves 2 to 4 ft. A chance of showers. .SUN NIGHT...SW winds 5 to 10 kt. Waves 2 to 3 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ 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