FZUS51 KBOX 222005 CWFBOX Coastal Waters Forecast for Massachusetts and Rhode Island National Weather Service Boston/Norton MA 405 PM EDT Sat Aug 22 2026 Coastal waters from the Merrimack River MA to Watch Hill RI out to 60 NM ANZ200-230900- 405 PM EDT Sat Aug 22 2026 .Synopsis for Massachusetts and Rhode Island coastal waters... Weak low pres lingers offshore today along a stalled front today and Sun. Periods of showers possible. High pres pushes this front farther offshore sometime Mon into Mon night. This high pres should remain over the waters through Wed. $$ ANZ250-230900- Coastal waters east of Ipswich Bay and the Stellwagen Bank National Marine Sanctuary- 405 PM EDT Sat Aug 22 2026 .TONIGHT...NE winds 5 to 10 kt, becoming SE after midnight. Seas 2 to 3 ft. Wave Detail: E 3 ft at 5 seconds and NW 1 foot at 3 seconds. Patchy fog. A slight chance of showers with patchy drizzle. Vsby 1 NM or less. .SUN...SE winds 5 to 10 kt. Seas around 2 ft. Wave Detail: SE 2 ft at 5 seconds and N 1 foot at 4 seconds. Patchy fog. A chance of showers with patchy drizzle in the morning. Vsby 1 NM or less, increasing to 1 to 3 NM in the afternoon. .SUN NIGHT...S winds around 10 kt. Gusts up to 20 kt in the evening. Seas 2 to 3 ft. Wave Detail: SE 2 ft at 5 seconds and SE 2 ft at 8 seconds. A chance of showers. Patchy fog after midnight. .MON...SW winds 5 to 10 kt. Gusts up to 20 kt in the afternoon. Seas 2 to 3 ft. Wave Detail: SE 3 ft at 6 seconds and SW 1 foot at 3 seconds. .MON NIGHT THROUGH TUE NIGHT...W winds 5 to 10 kt with gusts up to 20 kt. Seas 2 to 3 ft. Wave Detail: E 3 ft at 7 seconds and S 2 ft at 4 seconds. .WED THROUGH THU NIGHT...S winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: S 2 ft at 3 seconds and E 2 ft at 6 seconds. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ251-230900- Massachusetts Bay and Ipswich Bay- 405 PM EDT Sat Aug 22 2026 .TONIGHT...NE winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: E 3 ft at 5 seconds and NW 1 foot at 4 seconds. Patchy fog. A slight chance of showers with patchy drizzle. Vsby 1 NM or less. .SUN...E winds 5 to 10 kt. Seas around 2 ft. Wave Detail: SE 2 ft at 6 seconds and N 1 foot at 4 seconds. Patchy fog. A chance of showers with patchy drizzle in the morning. Vsby 1 NM or less, increasing to 1 to 3 NM in the afternoon. .SUN NIGHT...S winds 5 to 10 kt. Seas around 2 ft. Wave Detail: SE 2 ft at 5 seconds and E 2 ft at 8 seconds. A chance of showers. Patchy fog after midnight. .MON...SW winds 5 to 10 kt. Gusts up to 20 kt in the afternoon. Seas around 2 ft. Wave Detail: SW 2 ft at 3 seconds and E 2 ft at 7 seconds. .MON NIGHT THROUGH TUE NIGHT...W winds 5 to 10 kt. Seas around 2 ft. Wave Detail: E 2 ft at 7 seconds and S 1 foot at 3 seconds. .WED THROUGH THU NIGHT...S winds 10 to 15 kt. Seas around 2 ft. Wave Detail: SE 2 ft at 3 seconds and E 2 ft at 10 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. $$ ANZ231-230900- Cape Cod Bay- 405 PM EDT Sat Aug 22 2026 .TONIGHT...N winds around 5 kt. Seas around 2 ft. Wave Detail: N 1 foot at 4 seconds and S 1 foot at 5 seconds. Patchy fog. Patchy drizzle. A slight chance of showers this evening, then a chance of showers with a slight chance of tstms after midnight. Vsby 1 NM or less. .SUN...E winds 5 to 10 kt, becoming S in the afternoon. Seas around 2 ft. Wave Detail: N 1 foot at 4 seconds and E 1 foot at 4 seconds. Patchy fog. A chance of showers with patchy drizzle in the morning with vsby 1 NM or less. .SUN NIGHT...SW winds 5 to 10 kt. Gusts up to 20 kt in theevening. Seas around 2 ft. Wave Detail: SE 2 ft at 8 seconds and S 1 foot at 2 seconds. A chance of showers in the evening. Patchy fog after midnight. .MON...SW winds 5 to 10 kt, increasing to 10 to 15 kt with gusts up to 20 kt in the afternoon. Seas 2 to 3 ft. Wave Detail: SE 2 ft at 7 seconds and SW 1 foot at 2 seconds. .MON NIGHT THROUGH TUE NIGHT...W winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft. Wave Detail: SW 2 ft at 6 seconds and SW 1 foot at 3 seconds. .WED THROUGH THU...S winds 5 to 10 kt. Seas around 2 ft. Wave Detail: SW 2 ft at 5 seconds and W 1 foot at 3 seconds. .THU NIGHT...S winds 5 to 10 kt. Seas 1 foot or less. A chance of showers. Winds and seas higher in and near tstms. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ254-230900- Coastal waters from Provincetown MA to Chatham MA to Nantucket MA out 20 NM- 405 PM EDT Sat Aug 22 2026 .TONIGHT...SW winds around 5 kt, becoming S after midnight. Seas 2 to 3 ft. Wave Detail: NE 2 ft at 4 seconds and S 1 foot at 5 seconds. Patchy fog. Patchy drizzle. A slight chance of showers this evening, then showers likely with a chance of tstms after midnight. Vsby 1 NM or less. .SUN...SE winds 5 to 10 kt, becoming S in the afternoon. Gusts up to 20 kt. Seas 2 to 3 ft. Wave Detail: SE 2 ft at 5 seconds and N 1 foot at 4 seconds. Patchy fog. A chance of showers with patchy drizzle in the morning with vsby 1 NM or less. .SUN NIGHT...S winds 10 to 15 kt. Gusts up to 20 kt in the evening. Seas 2 to 4 ft. Wave Detail: S 3 ft at 6 seconds and E 2 ft at 7 seconds. Patchy fog. A chance of showers. Vsby 1 to 3 NM after midnight. .MON...SW winds 5 to 10 kt. Gusts up to 20 kt in the afternoon. Seas 3 to 4 ft. Wave Detail: SE 3 ft at 7 seconds and SW 1 foot at 3 seconds. .MON NIGHT THROUGH TUE NIGHT...W winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. Wave Detail: SE 3 ft at 6 seconds and W 2 ft at 4 seconds. .WED THROUGH THU...S winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: S 2 ft at 5 seconds and SE 2 ft at 8 seconds. .THU NIGHT...SE winds 5 to 10 kt. Seas 2 to 3 ft. A chance of showers. Winds and seas 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. $$ ANZ255-230900- Coastal Waters extending out to 25 NM South of Marthas Vineyard and Nantucket- 405 PM EDT Sat Aug 22 2026 .TONIGHT...E winds 5 to 10 kt. Seas around 2 ft. Wave Detail: E 2 ft at 5 seconds and N 1 foot at 3 seconds. Patchy fog. Patchy drizzle. A slight chance of showers this evening, then a chance of showers and tstms after midnight. Vsby 1 NM or less. .SUN...SE winds around 10 kt, becoming S with gusts up to 20 kt in the afternoon. Seas 2 to 3 ft. Wave Detail: SE 2 ft at 5 seconds and NW 1 foot at 5 seconds. Patchy fog. A chance of showers with patchy drizzle in the morning with vsby 1 NM or less. .SUN NIGHT...SW winds 10 to 15 kt. Gusts up to 20 kt in the evening. Seas 3 to 4 ft. Wave Detail: S 4 ft at 6 seconds and SE 3 ft at 12 seconds. Patchy fog. A chance of showers in the evening. .MON...SW winds 5 to 10 kt, increasing to 10 to 15 kt in the afternoon. Seas 3 to 4 ft. Wave Detail: SE 4 ft at 6 seconds and SW 1 foot at 2 seconds. .MON NIGHT THROUGH TUE NIGHT...W winds 15 to 20 kt. Seas 2 to 4 ft. Wave Detail: W 4 ft at 5 seconds and SW 4 ft at 6 seconds. .WED THROUGH THU...S winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: W 3 ft at 5 seconds and NE 2 ft at 4 seconds. .THU NIGHT...SE winds 5 to 10 kt. Seas 2 to 3 ft. A chance of showers. Winds and seas higher in and near tstms. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ256-230900- Coastal Waters from Montauk NY to Marthas Vineyard extending out to 20 NM South of Block Island- 405 PM EDT Sat Aug 22 2026 .TONIGHT...E winds 5 to 10 kt. Seas around 2 ft. Wave Detail: NE 2 ft at 4 seconds and S 1 foot at 5 seconds. Patchy fog. Patchy drizzle. A slight chance of showers this evening, then a chance of showers after midnight with vsby 1 to 3 NM. .SUN...SE winds around 10 kt, becoming S with gusts up to 20 kt in the afternoon. Seas 2 to 3 ft. Wave Detail: SE 2 ft at 5 seconds and SE 2 ft at 12 seconds. Patchy fog in the morning. A chance of showers with patchy drizzle in the morning with vsby 1 to 3 NM. .SUN NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 4 ft. Wave Detail: S 3 ft at 5 seconds and SE 2 ft at 11 seconds. A chance of showers in the evening. Patchy fog after midnight. .MON...SW winds 10 to 15 kt. Seas 3 to 4 ft. Wave Detail: SE 4 ft at 7 seconds and W 2 ft at 4 seconds. .MON NIGHT THROUGH TUE NIGHT...W winds 15 to 20 kt. Seas 2 to 4 ft. Wave Detail: SE 4 ft at 7 seconds and SW 3 ft at 4 seconds. .WED THROUGH THU...S winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: NE 3 ft at 5 seconds and W 2 ft at 5 seconds. .THU NIGHT...SE winds 5 to 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. $$ ANZ232-230900- Nantucket Sound- 405 PM EDT Sat Aug 22 2026 .TONIGHT...N winds around 5 kt, becoming SE after midnight. Seas around 2 ft. Wave Detail: NE 1 foot at 4 seconds and S 1 foot at 5 seconds. Patchy fog. Patchy drizzle. A slight chance of showers this evening, then showers likely with a chance of tstms after midnight. Vsby 1 to 3 NM. .SUN...SE winds 5 to 10 kt, becoming S 10 to 15 kt with gusts up to 20 kt in the afternoon. Seas 2 to 3 ft. Wave Detail: NW 1 foot at 4 seconds and SE 1 foot at 4 seconds. Patchy fog. A chance of showers with patchy drizzle in the morning. Vsby 1 to 3 NM. .SUN NIGHT...SW winds 10 to 15 kt with gusts up to 25 kt, diminishing to 5 to 10 kt after midnight. Seas 2 to 3 ft. Wave Detail: SW 2 ft at 4 seconds and SE 2 ft at 8 seconds. Patchy fog. A chance of showers. .MON...SW winds 5 to 10 kt, increasing to 10 to 15 kt with gusts up to 20 kt in the afternoon. Seas 2 to 3 ft. Wave Detail: SW 2 ft at 6 seconds and SW 1 foot at 3 seconds. .MON NIGHT THROUGH TUE NIGHT...W winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 3 ft. Wave Detail: SE 3 ft at 7 seconds and SW 2 ft at 3 seconds. .WED THROUGH THU...S winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft. Wave Detail: SW 2 ft at 4 seconds and E 1 foot at 6 seconds. .THU NIGHT...SE winds 5 to 10 kt. Seas around 2 ft. A chance of showers. Winds and seas higher in and near tstms. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ233-230900- Vineyard Sound- 405 PM EDT Sat Aug 22 2026 .TONIGHT...NE winds 5 to 10 kt. Seas 1 foot or less. Wave Detail: N 1 foot at 3 seconds and S 1 foot at 5 seconds. Patchy fog. Patchy drizzle. A slight chance of showers this evening, then a chance of showers after midnight with vsby 1 to 3 NM. .SUN...SE winds around 10 kt, becoming S with gusts up to 20 kt in the afternoon. Seas around 2 ft. Wave Detail: NW 1 foot at 4 seconds and SE 1 foot at 4 seconds. Patchy fog. A chance of showers with patchy drizzle in the morning with vsby 1 to 3 NM. .SUN NIGHT...SW winds 5 to 10 kt with gusts up to 20 kt. Seas 2 to 3 ft. Wave Detail: SE 3 ft at 11 seconds and S 2 ft at 5 seconds. A chance of showers in the evening. Patchy fog after midnight. .MON...SW winds 5 to 10 kt, increasing to 10 to 15 kt with gusts up to 20 kt in the afternoon. Seas 2 to 3 ft. Wave Detail: SW 3 ft at 6 seconds and SW 2 ft at 4 seconds. .MON NIGHT THROUGH TUE NIGHT...W winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 4 ft. Wave Detail: SW 4 ft at 5 seconds and E 1 foot at 7 seconds. .WED THROUGH THU...S winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft. Wave Detail: NE 2 ft at 4 seconds and SW 2 ft at 5 seconds. .THU NIGHT...S winds 5 to 10 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. $$ ANZ234-230900- Buzzards Bay- 405 PM EDT Sat Aug 22 2026 .TONIGHT...NE winds around 5 kt. Seas 1 foot or less. Wave Detail: N 1 foot at 2 seconds and S 1 foot at 5 seconds. Patchy fog. Patchy drizzle. A slight chance of showers this evening, then a chance of showers after midnight. Vsby 1 to 3 NM. .SUN...E winds 5 to 10 kt, becoming S with gusts up to 20 kt in the afternoon. Seas 1 foot or less, then around 2 ft in the afternoon. Wave Detail: SE 1 foot at 3 seconds and NW 1 foot at 4 seconds, becoming SE 1 foot at 3 seconds and N 1 foot at 4 seconds. Patchy fog. A chance of showers with patchy drizzle in the morning with vsby 1 to 3 NM. .SUN NIGHT...SW winds 5 to 10 kt. Gusts up to 20 kt in the evening. Seas 2 to 3 ft. Wave Detail: SE 3 ft at 8 seconds and SW 1 foot at 4 seconds. A chance of showers in the evening. Patchy fog after midnight with vsby 1 to 3 NM. .MON...SW winds 5 to 10 kt, increasing to 10 to 15 kt with gusts up to 25 kt in the afternoon. Seas 2 to 3 ft. Wave Detail: SW 2 ft at 3 seconds and SW 2 ft at 5 seconds. .MON NIGHT THROUGH TUE NIGHT...W winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 4 ft. Wave Detail: SW 3 ft at 5 seconds and E 1 foot at 7 seconds. .WED THROUGH THU...S winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Wave Detail: SW 2 ft at 5 seconds and E 1 foot at 6 seconds. .THU NIGHT...S winds 5 to 10 kt. Seas around 2 ft. A chance of showers. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ235-230900- Rhode Island Sound- 405 PM EDT Sat Aug 22 2026 .TONIGHT...NE winds 5 to 10 kt. Seas around 2 ft. Wave Detail: N 1 foot at 3 seconds and S 1 foot at 5 seconds. Patchy fog. Patchy drizzle. A slight chance of showers this evening, then a chance of showers after midnight. Vsby 1 to 3 NM. .SUN...E winds around 10 kt, becoming S in the afternoon. Seas around 2 ft. Wave Detail: SE 2 ft at 4 seconds and NW 1 foot at 4 seconds. Patchy fog. A chance of showers with patchy drizzle in the morning with vsby 1 to 3 NM. .SUN NIGHT...SW winds 10 to 15 kt, diminishing to 5 to 10 kt after midnight. Gusts up to 20 kt. Seas 2 to 3 ft. Wave Detail: SE 3 ft at 5 seconds and SE 2 ft at 9 seconds. A chance of showers in the evening. Patchy fog after midnight. .MON...SW winds 5 to 10 kt, increasing to 10 to 15 kt with gusts up to 20 kt in the afternoon. Seas 2 to 4 ft. Wave Detail: SE 4 ft at 7 seconds and SW 2 ft at 3 seconds. .MON NIGHT THROUGH TUE NIGHT...W winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 4 ft. Wave Detail: S 4 ft at 7 seconds and W 2 ft at 4 seconds. .WED THROUGH THU...S winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Wave Detail: SW 3 ft at 5 seconds and NE 2 ft at 4 seconds. .THU NIGHT...SE winds 5 to 10 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. $$ ANZ237-230900- Block Island Sound- 405 PM EDT Sat Aug 22 2026 .TONIGHT...E winds 5 to 10 kt. Seas around 2 ft. Wave Detail: NE 1 foot at 4 seconds and S 1 foot at 5 seconds. Patchy fog. Patchy drizzle. A slight chance of showers this evening, then a chance of showers after midnight with vsby 1 to 3 NM. .SUN...E winds around 10 kt, becoming S in the afternoon. Seas around 2 ft. Wave Detail: SE 2 ft at 4 seconds and N 1 foot at 4 seconds. Patchy fog in the morning. A chance of showers with patchy drizzle in the morning with vsby 1 to 3 NM. .SUN NIGHT...SW winds 5 to 10 kt. Gusts up to 20 kt in the evening. Seas 2 to 3 ft. Wave Detail: SE 2 ft at 5 seconds and W 1 foot at 3 seconds. A chance of showers in the evening. Patchy fog after midnight. .MON...SW winds 5 to 10 kt, increasing to 10 to 15 kt with gusts up to 20 kt in the afternoon. Seas 2 to 3 ft. Wave Detail: SE 3 ft at 6 seconds and W 1 foot at 3 seconds. .MON NIGHT THROUGH TUE NIGHT...W winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Wave Detail: SE 3 ft at 7 seconds and W 2 ft at 3 seconds. .WED THROUGH THU...S winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: SE 2 ft at 6 seconds and SE 2 ft at 9 seconds. .THU NIGHT...SE winds 5 to 10 kt. Seas around 2 ft. A chance of showers. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ230-230900- Boston Harbor- 405 PM EDT Sat Aug 22 2026 .TONIGHT...NE winds 5 to 10 kt. Waves 1 foot or less. Patchy fog. Patchy drizzle. A chance of showers this evening, then a slight chance of showers after midnight. Vsby 1 to 3 NM, decreasing to 1 NM or less after midnight. .SUN...E winds around 5 kt. Waves 1 foot or less. Patchy fog. A chance of showers. Patchy drizzle in the morning with vsby 1 NM or less. .SUN NIGHT...S winds 5 to 10 kt. Waves 1 foot or less. A chance of showers. Patchy fog after midnight. .MON...SW winds around 5 kt, increasing to around 10 kt in the afternoon. Waves 1 foot or less, then around 2 ft in the afternoon. .MON NIGHT THROUGH TUE NIGHT...W winds 5 to 10 kt. Waves around 2 ft. .WED THROUGH THU...S winds 5 to 10 kt. Waves around 2 ft. .THU NIGHT...S winds 5 to 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. $$ ANZ236-230900- Narragansett Bay- 405 PM EDT Sat Aug 22 2026 .TONIGHT...NE winds around 5 kt. Waves 1 foot or less. Patchy fog. A slight chance of showers with patchy drizzle. Vsby 1 to 3 NM. .SUN...E winds 5 to 10 kt, becoming S in the afternoon. Waves around 2 ft. Patchy fog. A chance of showers with patchy drizzle in the morning with vsby 1 to 3 NM. .SUN NIGHT...SW winds 5 to 10 kt. Gusts up to 20 kt in the evening. Waves around 2 ft. Patchy fog after midnight with vsby 1 to 3 NM. .MON...SW winds 5 to 10 kt, increasing to 10 to 15 kt with gusts up to 20 kt in the afternoon. Waves 2 to 3 ft. .MON NIGHT THROUGH TUE NIGHT...W winds 10 to 15 kt with gusts up to 20 kt. Waves 2 to 3 ft. .WED THROUGH THU...S winds 10 to 15 kt with gusts up to 20 kt. Waves around 2 ft. .THU NIGHT...S winds 5 to 10 kt. Waves around 2 ft. A chance of showers. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ280-230900- Ocean Waters from the Merrimack River to Plymouth from 40 to 60 NM- 405 PM EDT Sat Aug 22 2026 .TONIGHT...E winds 5 to 10 kt with gusts upto 20 kt, becoming S after midnight. Seas 2 to 3 ft. Wave Detail: SE 3 ft at 6 seconds and SE 1 foot at 13 seconds. Patchy fog. A slight chance of showers with patchy drizzle. Vsby 1 NM or less. .SUN...SE winds 5 to 10 kt, becoming S 10 to 15 kt in the afternoon. Gusts up to 20 kt. Seas 2 to 3 ft. Wave Detail: SE 2 ft at 5 seconds and N 1 foot at 4 seconds. Patchy fog. A chance of showers with patchy drizzle in the morning. Vsby 1 NM or less, increasing to 1 to 3 NM in the afternoon. .SUN NIGHT...S winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. Wave Detail: S 2 ft at 4 seconds and E 2 ft at 7 seconds. Patchy fog. A chance of showers. Vsby 1 to 3 NM. .MON...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 4 ft. Wave Detail: SE 3 ft at 7 seconds and SW 1 foot at 3 seconds. .MON NIGHT THROUGH TUE NIGHT...W winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. Wave Detail: SE 3 ft at 7 seconds and W 2 ft at 3 seconds. .WED THROUGH THU NIGHT...S winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Wave Detail: W 2 ft at 3 seconds and S 2 ft at 5 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. $$ ANZ281-230900- Ocean Waters from Provincetown to Nantucket from 20 to 60 NM- 405 PM EDT Sat Aug 22 2026 .TONIGHT...S winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: NE 2 ft at 4 seconds and S 1 foot at 5 seconds. Patchy fog. Patchy drizzle. A chance of showers this evening, then showers likely with a chance of tstms after midnight. Vsby 1 NM or less. .SUN...S winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. Wave Detail: S 3 ft at 4 seconds and NE 2 ft at 7 seconds. Patchy fog. A chance of showers. Patchy drizzle in the morning with vsby 1 NM or less. .SUN NIGHT...S winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 4 ft. Wave Detail: SE 4 ft at 7 seconds and W 1 foot at 4 seconds. Patchy fog. A chance of showers. Vsby 1 to 3 NM. .MON...SW winds 5 to 10 kt with gusts up to 20 kt. Seas 3 to 4 ft. Wave Detail: SE 4 ft at 7 seconds and W 1 foot at 3 seconds. A chance of showers in the morning. .MON NIGHT THROUGH TUE NIGHT...W winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 4 ft. Wave Detail: SE 3 ft at 7 seconds and W 2 ft at 4 seconds. .WED THROUGH THU...S winds 5 to 10 kt. Seas 3 to 4 ft. Wave Detail: W 3 ft at 5 seconds and SE 2 ft at 9 seconds. .THU NIGHT...SE winds 5 to 10 kt. Seas around 3 ft. A chance of showers. Winds and seas higher in and near tstms. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ282-230900- Ocean Waters from Marthas Vineyard to Nantucket from 25 to 60 NM- 405 PM EDT Sat Aug 22 2026 .TONIGHT...SE winds 5 to 10 kt. Gusts up to 20 kt after midnight. Seas 2 to 3 ft. Wave Detail: E 2 ft at 7 seconds and SE 2 ft at 13 seconds. Patchy fog. Patchy drizzle. A chance of showers this evening, then showers likely with a chance of tstms after midnight. Vsby 1 NM or less. .SUN...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 N 2 ft at 5 seconds. Patchy fog. A chance of showers with patchy drizzle in the morning with vsby 1 NM or less. .SUN NIGHT...SW winds 10 to 15 kt. Gusts up to 25 kt in the evening. Seas 3 to 4 ft. Wave Detail: S 4 ft at 6 seconds and SE 4 ft at 9 seconds. Patchy fog. A chance of showers. .MON...SW winds 5 to 10 kt. Seas 3 to 4 ft. Wave Detail: SE 4 ft at 7 seconds and SE 2 ft at 11 seconds. .MON NIGHT THROUGH TUE NIGHT...W winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 5 ft. Wave Detail: W 4 ft at 5 seconds and SW 4 ft at 6 seconds. .WED THROUGH THU...S winds 5 to 10 kt. Seas 3 to 4 ft. Wave Detail: SW 3 ft at 6 seconds and E 3 ft at 7 seconds. .THU NIGHT...SE winds 5 to 10 kt. Seas 3 to 4 ft. A chance of showers. Winds and seas 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. $$ ANZ283-230900- Ocean Waters from Montauk NY to Marthas Vineyard from 25 to 60 NM- 405 PM EDT Sat Aug 22 2026 .TONIGHT...E winds 5 to 10 kt. Gusts up to 20 kt after midnight. Seas 2 to 3 ft. Wave Detail: E 2 ft at 7 seconds and N 1 foot at 4 seconds. Patchy fog. Patchy drizzle. A slight chance of showers this evening, then a chance of showers with a slight chance of tstms after midnight. Vsby 1 to 3 NM. .SUN...S winds 10 to 15 kt, becoming SW in the afternoon. Gusts up to 20 kt. Seas 3 to 4 ft. Wave Detail: SE 3 ft at 6 seconds and N 1 foot at 4 seconds. Patchy fog in the morning. A chance of showers with patchy drizzle in the morning with vsby 1 to 3 NM. .SUN NIGHT...SW winds 10 to 15 kt with gusts up to 25 kt. Seas 3 to 4 ft. Wave Detail: SE 4 ft at 6 seconds and NW 2 ft at 5 seconds. A chance of showers in the evening. Patchy fog after midnight. .MON...SW winds 10 to 15 kt. Seas 3 to 4 ft. Wave Detail: SE 4 ft at 7 seconds and W 2 ft at 4 seconds. .MON NIGHT THROUGH TUE NIGHT...W winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 5 ft. Wave Detail: SW 5 ft at 5 seconds and SW 4 ft at 5 seconds. .WED THROUGH THU...S winds 5 to 10 kt. Seas 2 to 4 ft. Wave Detail: E 4 ft at 9 seconds and W 3 ft at 5 seconds. .THU NIGHT...SE winds 5 to 10 kt. Seas around 3 ft. A chance of showers. Winds and seas higher in and near tstms. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ For the latest updates...please visit our webpage at www.weather.gov/boston You can follow us on Facebook at www.facebook.com/us.nationalweatherservice.boston.gov You can follow us on Twitter at @NWSBoston