


Coastal Waters Forecast
Issued by NWS Boston, MA
Issued by NWS Boston, MA
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695 FZUS51 KBOX 261703 CWFBOX Coastal Waters Forecast for Massachusetts and Rhode Island National Weather Service Boston/Norton MA 103 PM EDT Sat Apr 26 2025 Coastal waters from the Merrimack River MA to Watch Hill RI out to 25 NM ANZ200-270600- 103 PM EDT Sat Apr 26 2025 .Synopsis for Massachusetts and Rhode Island coastal waters... Approaching low pres brings increasing winds and seas for today. Periodic chances for rain today with gradually clearing conditions later tonight into Sunday. Breezy northwest winds Sun. Dry and less windy early next week with decreasing seas. $$ ANZ250-270600- Coastal waters east of Ipswich Bay and the Stellwagen Bank National Marine Sanctuary- 103 PM EDT Sat Apr 26 2025 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE SUNDAY NIGHT... .THIS AFTERNOON...S winds 20 to 25 kt with gusts up to 30 kt. Seas 5 to 7 ft. Wave Detail: S 5 ft at 5 seconds and SE 5 ft at 9 seconds. Patchy fog. A chance of showers. Vsby 1 NM or less. .TONIGHT...SW winds 15 to 20 kt, becoming W after midnight. Gusts up to 30 kt. Seas 5 to 7 ft. Wave Detail: SE 5 ft at 8 seconds and W 4 ft at 4 seconds. Patchy fog. Showers likely in the evening. Vsby 1 NM or less. .SUN...W winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to 5 ft. Wave Detail: W 4 ft at 4 seconds and SE 4 ft at 8 seconds. A chance of showers in the afternoon. .SUN NIGHT...NW winds 15 to 20 kt with gusts up to 30 kt. Seas 4 to 6 ft. Wave Detail: NW 5 ft at 5 seconds and SE 4 ft at 8 seconds. A chance of showers in the evening. .MON...NW winds 10 to 15 kt with gusts up to 25 kt, diminishing to 5 to 10 kt in the afternoon. Seas 4 to 6 ft. Wave Detail: NW 4 ft at 5 seconds and NE 4 ft at 8 seconds. .MON NIGHT...W winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: E 3 ft at 8 seconds and W 1 foot at 4 seconds. .TUE...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 4 ft. .TUE NIGHT THROUGH WED NIGHT...NW winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to 5 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ251-270600- Massachusetts Bay and Ipswich Bay- 103 PM EDT Sat Apr 26 2025 .THIS AFTERNOON...S winds 15 to 20 kt with gusts up to 25 kt. Seas 4 to 5 ft. Wave Detail: S 3 ft at 4 seconds and SE 3 ft at 9 seconds. Patchy fog. A chance of showers. Vsby 1 NM or less. .TONIGHT...SW winds 15 to 20 kt, becoming W after midnight. Gusts up to 25 kt. Seas 3 to 5 ft. Wave Detail: S 3 ft at 4 seconds and SE 3 ft at 7 seconds. Patchy fog. A chance of showers in the evening. Vsby 1 NM or less, increasing to 1 to 3 NM after midnight. .SUN...W winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 3 ft. Wave Detail: W 3 ft at 4 seconds and SE 2 ft at 8 seconds. A chance of showers in the afternoon. .SUN NIGHT...NW winds 15 to 20 kt with gusts up to 30 kt. Seas 3 to 4 ft. Wave Detail: NW 3 ft at 4 seconds and E 3 ft at 9 seconds. A chance of showers in the evening. .MON...NW winds 10 to 15 kt with gusts up to 25 kt, diminishing to 5 to 10 kt in the afternoon. Seas 2 to 3 ft. Wave Detail: NW 3 ft at 4 seconds and NE 3 ft at 7 seconds. .MON NIGHT...W winds 5 to 10 kt. Seas around 2 ft. Wave Detail: NE 2 ft at 7 seconds and NW 1 foot at 3 seconds. .TUE THROUGH WED NIGHT...NW winds 15 to 20 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. $$ ANZ231-270600- Cape Cod Bay- 103 PM EDT Sat Apr 26 2025 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH SUNDAY MORNING... .THIS AFTERNOON...S winds around 20 kt with gusts up to 30 kt. Seas 4 to 5 ft. Wave Detail: S 3 ft at 4 seconds and SE 3 ft at 10 seconds. Patchy fog. Showers. Vsby 1 NM or less. .TONIGHT...SW winds 15 to 20 kt, becoming W 10 to 15 kt after midnight. Gusts up to 25 kt. Seas 3 to 5 ft. Wave Detail: SW 3 ft at 4 seconds and SE 3 ft at 8 seconds. Patchy fog. Showers likely, mainly in the evening. Vsby 1 NM or less. .SUN...W winds around 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Wave Detail: W 3 ft at 4 seconds and SE 2 ft at 8 seconds. .SUN NIGHT...NW winds 15 to 20 kt with gusts up to 30 kt. Seas 2 to 4 ft. Wave Detail: NW 3 ft at 5 seconds and SE 2 ft at 9 seconds. .MON...NW winds 10 to 15 kt with gusts up to 25 kt, diminishing to 5 to 10 kt in the afternoon. Seas 2 to 4 ft. Wave Detail: N 3 ft at 6 seconds. .MON NIGHT...W winds around 5 kt. Seas around 2 ft. Wave Detail: N 2 ft at 6 seconds. .TUE THROUGH WED NIGHT...NW winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 4 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ254-270600- Coastal waters from Provincetown MA to Chatham MA to Nantucket MA out 20 nm- 103 PM EDT Sat Apr 26 2025 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE SUNDAY NIGHT... .THIS AFTERNOON...S winds 20 to 25 kt with gusts up to 30 kt. Seas 6 to 8 ft. Wave Detail: S 7 ft at 6 seconds and SE 3 ft at 9 seconds. Patchy fog. Showers likely. Vsby 1 NM or less. .TONIGHT...S winds 20 to 25 kt, becoming SW 15 to 20 kt after midnight. Gusts up to 30 kt. Seas 5 to 8 ft. Wave Detail: S 7 ft at 7 seconds. Patchy fog. Showers likely, mainly in the evening. Vsby 1 NM or less. .SUN...W winds 15 to 20 kt with gusts up to 25 kt. Seas 4 to 6 ft. Wave Detail: SE 5 ft at 8 seconds and W 4 ft at 5 seconds. .SUN NIGHT...NW winds 15 to 20 kt with gusts up to 30 kt. Seas 4 to 6 ft. Wave Detail: NW 4 ft at 5 seconds and SE 4 ft at 8 seconds. .MON...NW winds 10 to 15 kt with gusts up to 25 kt. Seas 4 to 6 ft. Wave Detail: N 4 ft at 7 seconds. .MON NIGHT...W winds 5 to 10 kt. Seas 2 to 4 ft. Wave Detail: N 4 ft at 7 seconds and W 1 foot at 4 seconds. .TUE...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. .TUE NIGHT THROUGH WED NIGHT...NW winds 15 to 20 kt with gusts up to 25 kt. Seas 4 to 6 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. $$ ANZ255-270600- Coastal Waters extending out to 25 nm South of Marthas Vineyard and Nantucket- 103 PM EDT Sat Apr 26 2025 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE SUNDAY NIGHT... .THIS AFTERNOON...S winds around 25 kt with gusts up to 35 kt. Seas 6 to 8 ft. Wave Detail: S 8 ft at 7 seconds and SE 1 foot at 9 seconds. Patchy fog. A chance of showers. Vsby 1 NM or less. .TONIGHT...SW winds 20 to 25 kt, becoming W 15 to 20 kt after midnight. Gusts up to 30 kt. Seas 5 to 8 ft. Wave Detail: S 8 ft at 8 seconds. Patchy fog. Showers likely, mainly in the evening. Vsby 1 NM or less. .SUN...W winds 20 to 25 kt. Seas 5 to 7 ft. Wave Detail: SW 6 ft at 8 seconds and S 6 ft at 8 seconds. .SUN NIGHT...NW winds 15 to 20 kt with gusts up to 30 kt. Seas 4 to 6 ft. Wave Detail: W 5 ft at 7 seconds and SE 3 ft at 8 seconds. .MON...NW winds 10 to 15 kt with gusts up to 25 kt, diminishing to 5 to 10 kt in the afternoon. Seas 4 to 6 ft. Wave Detail: NW 4 ft at 6 seconds and SE 2 ft at 8 seconds. .MON NIGHT...W winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: W 2 ft at 4 seconds and E 2 ft at 9 seconds. .TUE...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. .TUE NIGHT...SW winds 20 to 25 kt with gusts up to 30 kt. Seas 4 to 6 ft. .WED...W winds 15 to 20 kt with gusts up to 25 kt. Seas 5 to 7 ft. .WED NIGHT...NW winds 10 to 15 kt with gusts up to 20 kt. Seas 4 to 6 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ256-270600- Coastal Waters from Montauk NY to Marthas Vineyard extending out to 20 nm South of Block Island- 103 PM EDT Sat Apr 26 2025 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE SUNDAY NIGHT... .THIS AFTERNOON...S winds 20 to 25 kt with gusts up to 30 kt. Seas 7 to 8 ft. Wave Detail: S 8 ft at 7 seconds and SE 1 foot at 8 seconds. Patchy fog. A chance of showers. Vsby 1 NM or less. .TONIGHT...SW winds 20 to 25 kt, becoming W 15 to 20 kt after midnight. Gusts up to 30 kt. Seas 7 to 8 ft, subsiding to 5 to 8 ft after midnight. Wave Detail: S 8 ft at 7 seconds, becoming SW 7 ft at 7 seconds and S 7 ft at 8 seconds. Patchy fog. A chance of showers in the evening. Vsby 1 NM or less. .SUN...W winds 20 to 25 kt with gusts up to 30 kt. Seas 5 to 6 ft. Wave Detail: W 6 ft at 7 seconds and S 6 ft at 8 seconds. .SUN NIGHT...NW winds 15 to 20 kt with gusts up to 30 kt. Seas 4 to 6 ft. Wave Detail: NW 5 ft at 6 seconds and SE 3 ft at 8 seconds. .MON AND MON NIGHT...W winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. Wave Detail: NW 3 ft at 5 seconds and SE 2 ft at 8 seconds. .TUE...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 4 ft. Wave Detail: SW 3 ft at 4 seconds and SE 2 ft at 9 seconds. .TUE NIGHT AND WED...SW winds 20 to 25 kt, becoming W 15 to 20 kt. Gusts up to 30 kt. Seas 4 to 6 ft. .WED NIGHT...NW winds 10 to 15 kt with gusts up to 20 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. $$ ANZ232-270600- Nantucket Sound- 103 PM EDT Sat Apr 26 2025 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH SUNDAY MORNING... .THIS AFTERNOON...S winds around 25 kt with gusts up to 30 kt. Seas 4 to 5 ft. Wave Detail: S 5 ft at 5 seconds and SE 1 foot at 10 seconds. Patchy fog. A chance of showers. Vsby 1 NM or less. .TONIGHT...SW winds 20 to 25 kt, becoming W 15 to 20 kt after midnight. Gusts up to 30 kt. Seas 3 to 5 ft. Wave Detail: SW 5 ft at 5 seconds and SE 2 ft at 8 seconds. Patchy fog. A chance of showers. Vsby 1 NM or less. .SUN...W winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to 4 ft. Wave Detail: W 3 ft at 4 seconds and SE 2 ft at 8 seconds. .SUN NIGHT...NW winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 3 ft. Wave Detail: W 3 ft at 4 seconds and SE 1 foot at 8 seconds. .MON...NW winds 10 to 15 kt with gusts up to 20 kt, diminishing to 5 to 10 kt in the afternoon. Seas 2 to 3 ft. Wave Detail: NW 2 ft at 4 seconds and E 1 foot at 8 seconds. .MON NIGHT...W winds 5 to 10 kt. Seas 1 foot or less. Wave Detail: W 1 foot at 3 seconds and E 1 foot at 8 seconds. .TUE...SW winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft. .TUE NIGHT THROUGH WED NIGHT...NW winds 20 to 25 kt. Seas 2 to 4 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ233-270600- Vineyard Sound- 103 PM EDT Sat Apr 26 2025 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH SUNDAY MORNING... .THIS AFTERNOON...S winds 20 to 25 kt with gusts up to 30 kt. Seas 5 to 6 ft. Wave Detail: SW 6 ft at 7 seconds and SE 1 foot at 9 seconds. Patchy fog. A chance of showers. Vsby 1 NM or less. .TONIGHT...SW winds 20 to 25 kt, becoming W 10 to 15 kt after midnight. Gusts up to 30 kt. Seas 4 to 6 ft. Wave Detail: SW 5 ft at 7 seconds and S 4 ft at 8 seconds. Patchy fog. A chance of showers in the evening. Vsby 1 NM or less. .SUN...W winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to 4 ft. Wave Detail: S 4 ft at 7 seconds. .SUN NIGHT...NW winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 4 ft. Wave Detail: W 3 ft at 6 seconds and S 2 ft at 8 seconds. .MON AND MON NIGHT...W winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft. Wave Detail: NW 2 ft at 4 seconds and E 1 foot at 7 seconds. .TUE THROUGH WED NIGHT...NW winds 20 to 25 kt. Seas 2 to 4 ft. Wave Detail: SW 4 ft at 6 seconds and SE 1 foot at 9 seconds. 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. $$ ANZ234-270600- Buzzards Bay- 103 PM EDT Sat Apr 26 2025 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH SUNDAY MORNING... .THIS AFTERNOON...S winds 20 to 25 kt with gusts up to 30 kt. Seas 4 to 5 ft. Wave Detail: SW 5 ft at 6 seconds and SE 2 ft at 10 seconds. Patchy fog. A chance of showers. Vsby 1 NM or less. .TONIGHT...SW winds 20 to 25 kt, becoming W 10 to 15 kt after midnight. Gusts up to 30 kt. Seas 3 to 5 ft. Wave Detail: SW 5 ft at 7 seconds and S 3 ft at 8 seconds. Patchy fog. A chance of showers. Vsby 1 NM or less. .SUN...W winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to 4 ft. Wave Detail: S 3 ft at 7 seconds. .SUN NIGHT...NW winds 15 to 20 kt, diminishing to 10 to 15 kt after midnight. Gusts up to 25 kt. Seas 2 to 3 ft. Wave Detail: NW 3 ft at 5 seconds and SE 2 ft at 8 seconds. .MON...NW winds 10 to 15 kt with gusts up to 20 kt, diminishing to 5 to 10 kt in the afternoon. Seas around 2 ft in the morning, then 1 foot or less. Wave Detail: NW 2 ft at 4 seconds and E 1 foot at 7 seconds, becoming NW 1 foot at 3 seconds and NE 1 foot at 5 seconds. .MON NIGHT...W winds 5 to 10 kt. Seas 1 foot or less. Wave Detail: SW 1 foot at 4 seconds and E 1 foot at 8 seconds. .TUE THROUGH WED NIGHT...NW winds 20 to 25 kt. Seas 2 to 4 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ235-270600- Rhode Island Sound- 103 PM EDT Sat Apr 26 2025 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH SUNDAY MORNING... .THIS AFTERNOON...S winds 20 to 25 kt with gusts up to 30 kt. Seas 6 to 7 ft. Wave Detail: S 7 ft at 7 seconds and SE 2 ft at 8 seconds. Patchy fog. A chance of showers. Vsby 1 NM or less. .TONIGHT...SW winds 20 to 25 kt, becoming W 15 to 20 kt after midnight. Gusts up to 30 kt. Seas 5 to 7 ft. Wave Detail: S 7 ft at 7 seconds. Patchy fog. A chance of showers. Vsby 1 NM or less. .SUN...W winds 15 to 20 kt with gusts up to 25 kt. Seas 4 to 5 ft. Wave Detail: SW 5 ft at 7 seconds. .SUN NIGHT...NW winds 15 to 20 kt with gusts up to 25 kt. Seas 4 to 5 ft, subsiding to 2 to 4 ft after midnight. Wave Detail: NW 4 ft at 5 seconds and S 3 ft at 8 seconds, becoming NW 3 ft at 5 seconds and SE 3 ft at 8 seconds. .MON AND MON NIGHT...W 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 2 ft at 8 seconds. .TUE...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 3 ft. Wave Detail: SW 3 ft at 4 seconds and SE 2 ft at 9 seconds. .TUE NIGHT AND WED...SW winds 20 to 25 kt, becoming W 15 to 20 kt. Seas 3 to 5 ft. .WED NIGHT...NW 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. $$ ANZ237-270600- Block Island Sound- 103 PM EDT Sat Apr 26 2025 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH SUNDAY MORNING... .THIS AFTERNOON...S winds 20 to 25 kt with gusts up to 30 kt. Seas 5 to 7 ft. Wave Detail: S 6 ft at 7 seconds and SE 3 ft at 8 seconds. Patchy fog. Showers likely. Vsby 1 NM or less. .TONIGHT...SW winds 15 to 20 kt, becoming W 10 to 15 kt after midnight. Gusts up to 30 kt. Seas 5 to 7 ft. Wave Detail: SW 5 ft at 7 seconds and S 5 ft at 8 seconds. Patchy fog. Showers likely in the evening. Vsby 1 NM or less. .SUN...W winds 15 to 20 kt with gusts up to 30 kt. Seas 4 to 5 ft. Wave Detail: S 4 ft at 8 seconds and W 3 ft at 4 seconds. .SUN NIGHT...NW winds 15 to 20 kt, diminishing to 10 to 15 kt after midnight. Gusts up to 30 kt. Seas 2 to 4 ft. Wave Detail: W 3 ft at 4 seconds and SE 3 ft at 8 seconds. .MON AND MON NIGHT...W winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Wave Detail: NW 2 ft at 3 seconds and SE 2 ft at 8 seconds. .TUE...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Wave Detail: SW 3 ft at 4 seconds and SE 2 ft at 9 seconds. .TUE NIGHT AND WED...SW winds 15 to 20 kt, becoming W 10 to 15 kt. Gusts up to 25 kt. Seas 3 to 5 ft. .WED NIGHT...NW winds 10 to 15 kt. Seas 2 to 4 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ230-270600- Boston Harbor- 103 PM EDT Sat Apr 26 2025 .THIS AFTERNOON...S winds 15 to 20 kt with gusts up to 25 kt. Waves around 2 ft. Patchy fog. Showers likely. Vsby 1 to 3 NM. .TONIGHT...SW winds 10 to 15 kt, becoming W after midnight. Gusts up to 25 kt. Waves around 2 ft. Patchy fog in the evening. Showers likely in the evening with vsby 1 to 3 NM. .SUN...W winds 15 to 20 kt with gusts up to 25 kt. Waves around 2 ft. A chance of showers in the afternoon. .SUN NIGHT...NW winds 15 to 20 kt with gusts up to 30 kt. Waves around 2 ft. A chance of showers in the evening. .MON...NW winds 10 to 15 kt with gusts up to 20 kt, diminishing to 5 to 10 kt in the afternoon. Waves around 2 ft. .MON NIGHT...W winds 5 to 10 kt. Waves 1 foot or less. .TUE THROUGH WED NIGHT...NW winds 15 to 20 kt with gusts up to 25 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. $$ ANZ236-270600- Narragansett Bay- 103 PM EDT Sat Apr 26 2025 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH SUNDAY MORNING... .THIS AFTERNOON...S winds 15 to 20 kt with gusts up to 25 kt. Waves 3 to 5 ft, except up to 6 ft at the bay entrance. Patchy fog. Showers likely. Vsby 1 NM or less. .TONIGHT...SW winds 15 to 20 kt, becoming W 10 to 15 kt after midnight. Gusts up to 25 kt. Waves 3 to 5 ft. Patchy fog. A chance of showers in the evening. Vsby 1 NM or less, increasing to 1 to 3 NM after midnight. .SUN...W winds 10 to 15 kt, becoming NW 15 to 20 kt in the afternoon. Gusts up to 25 kt. Waves 2 to 4 ft. .SUN NIGHT...NW winds 15 to 20 kt, diminishing to 10 to 15 kt after midnight. Gusts up to 25 kt. Waves 2 to 3 ft. .MON...NW winds 5 to 10 kt. Gusts up to 20 kt in the morning. Waves 2 to 3 ft. .MON NIGHT...W winds 5 to 10 kt. Waves 1 foot or less. .TUE...SW winds 10 to 15 kt with gusts up to 20 kt. Waves 2 to 3 ft. .TUE NIGHT AND WED...SW winds 15 to 20 kt, becoming W 10 to 15 kt. Gusts up to 25 kt. Waves 3 to 5 ft. .WED NIGHT...NW winds 10 to 15 kt. Waves 2 to 3 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ 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