Coastal Waters Forecast
Issued by NWS Boston, MA
Issued by NWS Boston, MA
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245 FZUS51 KBOX 010505 CWFBOX Coastal Waters Forecast for Massachusetts and Rhode Island National Weather Service Boston/Norton MA 105 AM EDT Thu Oct 1 2026 Coastal waters from the Merrimack River MA to Watch Hill RI out to 60 NM ANZ200-011800- 105 AM EDT Thu Oct 1 2026 .Synopsis for Massachusetts and Rhode Island coastal waters... High pressure builds across the area Thursday and then moves southeastward and into the Atlantic through Friday. A cold front moves across the waters Friday night with the potential for unsettled weather by Sunday. $$ ANZ250-011800- Coastal waters east of Ipswich Bay and the Stellwagen Bank National Marine Sanctuary- 105 AM EDT Thu Oct 1 2026 .REST OF TONIGHT...SW winds around 10 kt. Seas 2 to 3 ft. Wave Detail: E 3 ft at 9 seconds and SW 1 foot at 3 seconds. Patchy fog. .THU...SW winds 5 to 10 kt, increasing to 10 to 15 kt with gusts up to 20 kt in the afternoon. Seas 2 to 3 ft. Wave Detail: E 3 ft at 9 seconds and SW 2 ft at 3 seconds. .THU NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas around 3 ft. Wave Detail: SW 2 ft at 4 seconds and E 2 ft at 9 seconds. .FRI...SW winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 3 ft. Wave Detail: S 3 ft at 4 seconds and E 2 ft at 8 seconds. .FRI NIGHT...SW winds 10 to 15 kt, becoming NW after midnight. Gusts up to 25 kt. Seas 2 to 3 ft. Wave Detail: SW 3 ft at 4 seconds and E 2 ft at 11 seconds. A chance of showers. .SAT AND SAT NIGHT...NE winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Wave Detail: NW 2 ft at 4 seconds and N 2 ft at 4 seconds. .SUN THROUGH MON NIGHT...NW winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 4 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ251-011800- Massachusetts Bay and Ipswich Bay- 105 AM EDT Thu Oct 1 2026 .REST OF TONIGHT...SW winds 5 to 10 kt. Seas around 2 ft. Wave Detail: NE 2 ft at 5 seconds and E 2 ft at 9 seconds. .THU...SW winds 5 to 10 kt. Seas around 2 ft. Wave Detail: E 2 ft at 9 seconds and SW 1 foot at 3 seconds. .THU NIGHT...SW winds around 10 kt. Seas around 2 ft. Wave Detail: SW 2 ft at 3 seconds and E 2 ft at 9 seconds. .FRI...SW winds 10 to 15 kt. Gusts up to 20 kt in the afternoon. Seas 2 to 3 ft. Wave Detail: SE 2 ft at 3 seconds and E 2 ft at 8 seconds. .FRI NIGHT...W winds 10 to 15 kt, becoming NW after midnight. Gusts up to 20 kt. Seas around 2 ft. Wave Detail: SW 2 ft at 4 seconds and E 2 ft at 12 seconds. A chance of showers. .SAT AND SAT NIGHT...NE winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft. Wave Detail: N 2 ft at 3 seconds and NW 2 ft at 3 seconds. .SUN THROUGH MON 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. $$ ANZ231-011800- Cape Cod Bay- 105 AM EDT Thu Oct 1 2026 .REST OF TONIGHT...SW winds 5 to 10 kt. Seas around 2 ft. Wave Detail: SW 1 foot at 3 seconds and NE 1 foot at 4 seconds. Patchy fog. .THU...SW winds 5 to 10 kt, increasing to 10 to 15 kt with gusts up to 20 kt in the afternoon. Seas around 2 ft. Wave Detail: SW 1 foot at 2 seconds and NE 1 foot at 4 seconds. .THU NIGHT...SW winds 10 to 15 kt. Gusts up to 20 kt in the evening. Seas around 2 ft. Wave Detail: SW 1 foot at 3 seconds and NE 1 foot at 4 seconds. .FRI...SW winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 4 ft. Wave Detail: SW 2 ft at 3 seconds and SE 1 foot at 3 seconds. .FRI NIGHT...SW winds 10 to 15 kt, becoming NW after midnight. Gusts up to 25 kt. Seas 2 to 3 ft. Wave Detail: SW 2 ft at 3 seconds and E 1 foot at 8 seconds. Showers likely. .SAT AND SAT NIGHT...NE winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Wave Detail: N 2 ft at 3 seconds and NW 2 ft at 4 seconds. .SUN THROUGH MON NIGHT...NW winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 3 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ254-011800- Coastal waters from Provincetown MA to Chatham MA to Nantucket MA out 20 NM- 105 AM EDT Thu Oct 1 2026 .REST OF TONIGHT...SW winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: E 3 ft at 9 seconds and NE 1 foot at 5 seconds. Patchy fog. Vsby 1 to 3 NM. .THU...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: E 3 ft at 9 seconds and SW 2 ft at 3 seconds. .THU NIGHT...SW winds around 15 kt with gusts up to 20 kt. Seas 3 to 4 ft. Wave Detail: SW 3 ft at 4 seconds and E 2 ft at 9 seconds. Patchy fog. Vsby 1 NM or less, increasing to 1 to 3 NM after midnight. .FRI...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to 4 ft. Wave Detail: S 4 ft at 4 seconds and E 2 ft at 8 seconds. Patchy fog in the morning with vsby 1 NM or less. .FRI NIGHT...SW winds 15 to 20 kt, becoming W 10 to 15 kt after midnight. Gusts up to 25 kt. Seas 3 to 4 ft. Wave Detail: SW 4 ft at 5 seconds and E 2 ft at 11 seconds. A chance of showers in the evening, then showers likely after midnight. .SAT...N winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. Wave Detail: NW 3 ft at 4 seconds and N 3 ft at 4 seconds. A chance of showers in the morning. .SAT NIGHT...NE winds 5 to 10 kt. Seas 2 to 3 ft. .SUN THROUGH MON...W winds 5 to 10 kt. Seas 2 to 3 ft. .MON NIGHT...NW winds 20 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. $$ ANZ255-011800- Coastal Waters extending out to 25 NM South of Marthas Vineyard and Nantucket- 105 AM EDT Thu Oct 1 2026 .REST OF TONIGHT...SW winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: E 2 ft at 9 seconds and W 1 foot at 2 seconds. Patchy fog. .THU...SW winds 10 to 15 kt. Gusts up to 20 kt in the afternoon. Seas 2 to 3 ft. Wave Detail: SW 3 ft at 4 seconds and E 2 ft at 9 seconds. Patchy fog in the afternoon with vsby 1 to 3 NM. .THU NIGHT...SW winds around 15 kt with gusts up to 20 kt. Seas 3 to 4 ft. Wave Detail: W 4 ft at 5 seconds and E 2 ft at 8 seconds. Patchy fog. Vsby 1 NM or less. .FRI...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to 5 ft. Wave Detail: SW 5 ft at 5 seconds and E 2 ft at 8 seconds. Patchy fog in the morning with vsby 1 to 3 NM. .FRI NIGHT...SW winds 15 to 20 kt, becoming W after midnight. Gusts up to 25 kt. Seas 4 to 5 ft. Wave Detail: W 5 ft at 6 seconds and SE 2 ft at 11 seconds. A chance of showers. .SAT...N winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 5 ft. Wave Detail: SW 4 ft at 7 seconds and N 2 ft at 3 seconds. A chance of showers in the morning. .SAT NIGHT...NE winds 5 to 10 kt, increasing to 10 to 15 kt after midnight. Seas 2 to 3 ft. .SUN...E winds 10 to 15 kt. Seas 2 to 3 ft. .SUN NIGHT AND MON...NE winds 5 to 10 kt, becoming W. Seas 2 to 3 ft. A chance of showers. .MON NIGHT...NW winds 20 to 25 kt. Seas 3 to 5 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ256-011800- Coastal Waters from Montauk NY to Marthas Vineyard extending out to 20 NM South of Block Island- 105 AM EDT Thu Oct 1 2026 .REST OF TONIGHT...SW winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: SW 2 ft at 7 seconds and E 2 ft at 9 seconds. .THU...SW winds 10 to 15 kt. Gusts up to 20 kt in the afternoon. Seas 2 to 4 ft. Wave Detail: W 3 ft at 4 seconds and E 2 ft at 9 seconds. Patchy fog in the afternoon with vsby 1 to 3 NM. .THU NIGHT...SW winds around 15 kt with gusts up to 20 kt. Seas 3 to 4 ft. Wave Detail: W 4 ft at 5 seconds and E 2 ft at 9 seconds. Patchy fog. Vsby 1 to 3 NM. .FRI...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to 5 ft. Wave Detail: SW 5 ft at 6 seconds and E 1 foot at 8 seconds. .FRI NIGHT...SW winds 15 to 20 kt, becoming NW after midnight. Gusts up to 25 kt. Seas 4 to 5 ft. Wave Detail: SW 5 ft at 6 seconds and E 1 foot at 8 seconds. A chance of showers. .SAT...NE winds 10 to 15 kt. Gusts up to 20 kt in the morning. Seas 3 to 4 ft. Wave Detail: SW 4 ft at 7 seconds and N 2 ft at 3 seconds. A chance of showers in the morning. .SAT NIGHT...E winds 10 to 15 kt. Seas 2 to 3 ft. .SUN THROUGH MON 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. $$ ANZ232-011800- Nantucket Sound- 105 AM EDT Thu Oct 1 2026 .REST OF TONIGHT...SW winds 5 to 10 kt. Seas around 2 ft. Wave Detail: SW 1 foot at 3 seconds and NE 1 foot at 4 seconds. Patchy fog. Vsby 1 to 3 NM. .THU...SW winds 10 to 15 kt. Gusts up to 20 kt in the afternoon. Seas 2 to 3 ft. Wave Detail: SW 2 ft at 3 seconds and NE 1 foot at 4 seconds. .THU NIGHT...SW winds around 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Wave Detail: SW 2 ft at 4 seconds and NE 1 foot at 4 seconds. Patchy fog. Vsby 1 NM or less, increasing to 1 to 3 NM after midnight. .FRI...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 3 ft. Wave Detail: SW 3 ft at 4 seconds and SE 1 foot at 3 seconds. Patchy fog in the morning with vsby 1 to 3 NM. .FRI NIGHT...SW winds 15 to 20 kt, becoming NW 10 to 15 kt after midnight. Gusts up to 25 kt. Seas 2 to 3 ft. Wave Detail: SW 3 ft at 5 seconds and E 1 foot at 8 seconds. Showers likely. .SAT...N winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Wave Detail: N 2 ft at 3 seconds and NW 2 ft at 3 seconds. A chance of showers in the morning. .SAT NIGHT...NE winds 5 to 10 kt, increasing to 10 to 15 kt after midnight. Seas around 2 ft. .SUN THROUGH MON NIGHT...NW winds 20 to 25 kt. Seas 2 to 3 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ233-011800- Vineyard Sound- 105 AM EDT Thu Oct 1 2026 .REST OF TONIGHT...SW winds 5 to 10 kt. Seas 1 foot or less. Wave Detail: SW 1 foot at 3 seconds and SW 1 foot at 4 seconds. .THU...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 4 seconds and NE 1 foot at 5 seconds. .THU NIGHT...SW winds around 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Wave Detail: SW 3 ft at 4 seconds and E 1 foot at 9 seconds. Patchy fog. Vsby 1 to 3 NM in the evening. .FRI...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 4 ft. Wave Detail: SW 4 ft at 6 seconds and SW 2 ft at 3 seconds. Patchy fog in the morning. .FRI NIGHT...SW winds 15 to 20 kt with gusts up to 25 kt, becoming NW 10 to 15 kt after midnight. Seas 2 to 4 ft. Wave Detail: SW 4 ft at 6 seconds and W 2 ft at 3 seconds. Showers likely. .SAT AND SAT NIGHT...NE winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Wave Detail: SW 3 ft at 7 seconds and N 2 ft at 3 seconds. .SUN THROUGH MON 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. $$ ANZ234-011800- Buzzards Bay- 105 AM EDT Thu Oct 1 2026 .REST OF TONIGHT...SW winds 5 to 10 kt. Seas 1 foot or less. Wave Detail: SW 1 foot at 3 seconds and W 1 foot at 3 seconds. .THU...SW winds 5 to 10 kt, increasing to 10 to 15 kt with gusts up to 20 kt in the afternoon. Seas 2 to 3 ft. Wave Detail: SW 2 ft at 3 seconds and SW 2 ft at 4 seconds. .THU NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Wave Detail: W 2 ft at 3 seconds and SW 2 ft at 4 seconds. Patchy fog. Vsby 1 to 3 NM. .FRI...SW winds 10 to 15 kt, increasing to 15 to 20 kt in the afternoon. Gusts up to 25 kt. Seas 2 to 4 ft. Wave Detail: SW 3 ft at 4 seconds and SE 1 foot at 3 seconds. Patchy fog in the morning with vsby 1 to 3 NM. .FRI NIGHT...SW winds 15 to 20 kt with gusts up to 25 kt, becoming NW around 10 kt after midnight. Seas 2 to 4 ft. Wave Detail: SW 3 ft at 6 seconds and W 2 ft at 3 seconds. Showers likely, mainly in the evening. .SAT AND SAT NIGHT...NE winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft. Wave Detail: SW 2 ft at 7 seconds and N 1 foot at 3 seconds. .SUN THROUGH MON NIGHT...NW winds 15 to 20 kt. Seas 2 to 3 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ235-011800- Rhode Island Sound- 105 AM EDT Thu Oct 1 2026 .REST OF TONIGHT...SW winds 5 to 10 kt. Seas around 2 ft. Wave Detail: SW 2 ft at 3 seconds and NE 1 foot at 4 seconds. .THU...SW winds around 10 kt, increasing to around 15 kt with gusts up to 20 kt in the afternoon. Seas 2 to 3 ft. Wave Detail: SW 3 ft at 4 seconds and NE 1 foot at 5 seconds. .THU NIGHT...SW winds around 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Wave Detail: SW 3 ft at 4 seconds and E 1 foot at 9 seconds. Patchy fog. Vsby 1 NM or less, increasing to 1 to 3 NM after midnight. .FRI...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 4 ft. Wave Detail: SW 4 ft at 6 seconds and W 2 ft at 3 seconds. .FRI NIGHT...SW winds 15 to 20 kt with gusts up to 25 kt, becoming NW 10 to 15 kt after midnight. Seas 3 to 4 ft. Wave Detail: SW 4 ft at 7 seconds and W 2 ft at 4 seconds. A chance of showers. .SAT...N winds around 15 kt with gusts up to 20 kt, becoming NE in the afternoon. Seas 2 to 4 ft. Wave Detail: S 4 ft at 7 seconds and N 2 ft at 3 seconds. .SAT NIGHT...NE winds 5 to 10 kt. Seas around 2 ft. .SUN THROUGH MON 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. $$ ANZ237-011800- Block Island Sound- 105 AM EDT Thu Oct 1 2026 .REST OF TONIGHT...SW winds 5 to 10 kt. Seas around 2 ft. Wave Detail: W 1 foot at 2 seconds and N 1 foot at 4 seconds. .THU...SW winds 5 to 10 kt, increasing to 10 to 15 kt with gusts up to 20 kt in the afternoon. Seas 2 to 3 ft. Wave Detail: SW 2 ft at 5 seconds and SE 2 ft at 9 seconds. .THU NIGHT...SW winds 10 to 15 kt. Gusts up to 20 kt in the evening. Seas 2 to 3 ft. Wave Detail: SW 2 ft at 4 seconds and E 1 foot at 9 seconds. .FRI...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. Wave Detail: SW 3 ft at 4 seconds and E 1 foot at 8 seconds. .FRI NIGHT...W winds 10 to 15 kt with gusts up to 20 kt, becoming NW after midnight. Seas 2 to 4 ft. Wave Detail: S 4 ft at 7 seconds and W 2 ft at 4 seconds. A chance of showers. .SAT AND SAT NIGHT...NE winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: S 3 ft at 7 seconds and N 2 ft at 3 seconds. .SUN THROUGH MON NIGHT...NW winds 15 to 20 kt. Seas 2 to 3 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ230-011800- Boston Harbor- 105 AM EDT Thu Oct 1 2026 .REST OF TONIGHT...SW winds 5 to 10 kt. Waves 1 foot or less. .THU...SW winds 5 to 10 kt. Waves 1 foot or less, then around 2 ft in the afternoon. .THU NIGHT...SW winds around 10 kt. Waves around 2 ft. .FRI...SW winds 10 to 15 kt. Gusts up to 20 kt in the afternoon. Waves around 2 ft. .FRI NIGHT...W winds 10 to 15 kt with gusts up to 20 kt, becoming NW after midnight. Waves around 2 ft. A chance of showers. .SAT AND SAT NIGHT...NE winds 10 to 15 kt. Waves around 2 ft. .SUN THROUGH MON NIGHT...NW winds 10 to 15 kt with gusts up to 20 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. $$ ANZ236-011800- Narragansett Bay- 105 AM EDT Thu Oct 1 2026 .REST OF TONIGHT...SW winds around 5 kt. Waves 1 foot or less. .THU...SW winds 5 to 10 kt, increasing to 10 to 15 kt with gusts up to 20 kt in the afternoon. Waves around 2 ft. .THU NIGHT...SW winds 10 to 15 kt. Gusts up to 20 kt in the evening. Waves around 2 ft. .FRI...SW winds 10 to 15 kt with gusts up to 20 kt. Waves 2 to 3 ft. .FRI NIGHT...W winds 10 to 15 kt with gusts up to 20 kt, becoming NW after midnight. Waves 2 to 3 ft. A chance of showers. .SAT AND SAT NIGHT...NE winds 5 to 10 kt. Waves around 2 ft. .SUN THROUGH MON NIGHT...NW winds 10 to 15 kt with gusts up to 20 kt. Waves around 2 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ280-011800- Ocean Waters from the Merrimack River to Plymouth from 40 to 60 NM- 105 AM EDT Thu Oct 1 2026 .REST OF TONIGHT...SW winds around 10 kt. Seas around 3 ft. Wave Detail: E 3 ft at 9 seconds and S 2 ft at 7 seconds. Patchy fog. Vsby 1 to 3 NM. .THU...SW winds 10 to 15 kt. Gusts up to 20 kt in the afternoon. Seas 3 to 4 ft. Wave Detail: SW 3 ft at 4 seconds and E 3 ft at 9 seconds. .THU NIGHT...SW winds around 15 kt with gusts up to 25 kt. Seas 3 to 4 ft. Wave Detail: SW 3 ft at 5 seconds and E 2 ft at 9 seconds. Patchy fog after midnight with vsby 1 NM or less. .FRI...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to 4 ft. Wave Detail: S 4 ft at 4 seconds and W 2 ft at 4 seconds. Patchy fog in the morning with vsby 1 NM or less. .FRI NIGHT...SW winds 15 to 20 kt, becoming NW after midnight. Gusts up to 25 kt. Seas 3 to 5 ft. Wave Detail: SW 4 ft at 5 seconds and E 2 ft at 11 seconds. Showers likely. .SAT AND SAT NIGHT...NE winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. Wave Detail: NW 3 ft at 4 seconds and S 3 ft at 8 seconds. .SUN THROUGH MON...SW winds 10 to 15 kt. Seas 2 to 4 ft. .MON 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. $$ ANZ281-011800- Ocean Waters from Provincetown to Nantucket from 20 to 60 NM- 105 AM EDT Thu Oct 1 2026 .REST OF TONIGHT...SW winds 5 to 10 kt. Seas around 3 ft. Wave Detail: E 3 ft at 9 seconds and W 1 foot at 2 seconds. Patchy fog. Vsby 1 NM or less. .THU...SW winds 5 to 10 kt, increasing to 10 to 15 kt with gusts up to 20 kt in the afternoon. Seas 3 to 4 ft. Wave Detail: SW 3 ft at 4 seconds and E 3 ft at 9 seconds. .THU NIGHT...SW winds 10 to 15 kt with gusts up to 25 kt. Seas 3 to 4 ft. Wave Detail: W 3 ft at 4 seconds and E 2 ft at 8 seconds. Patchy fog. Vsby 1 NM or less. .FRI...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 4 to 5 ft. Wave Detail: SW 5 ft at 6 seconds and E 2 ft at 8 seconds. Patchy fog in the morning with vsby 1 NM or less. .FRI NIGHT...SW winds 15 to 20 kt, becoming W after midnight. Gusts up to 25 kt. Seas 4 to 6 ft. Wave Detail: W 5 ft at 6 seconds and E 2 ft at 11 seconds. A chance of showers. .SAT...N winds 10 to 15 kt with gusts up to 20 kt. Seas 4 to 5 ft. Wave Detail: SW 4 ft at 7 seconds and NW 3 ft at 4 seconds. A chance of showers in the morning. .SAT NIGHT...NE winds 5 to 10 kt, increasing to 10 to 15 kt after midnight. Seas 3 to 4 ft. .SUN...E winds 10 to 15 kt. Seas 2 to 3 ft. .SUN NIGHT...E winds 5 to 10 kt. Seas 2 to 3 ft. A chance of showers. .MON AND MON NIGHT...W winds 5 to 10 kt, becoming NW 20 to 25 kt. Seas 3 to 5 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ282-011800- Ocean Waters from Marthas Vineyard to Nantucket from 25 to 60 NM- 105 AM EDT Thu Oct 1 2026 .REST OF TONIGHT...SW winds around 5 kt. Seas around 3 ft. Wave Detail: E 3 ft at 9 seconds and W 1 foot at 3 seconds. .THU...SW winds 5 to 10 kt. Seas around 3 ft. Wave Detail: W 3 ft at 4 seconds and E 3 ft at 9 seconds. .THU NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 4 ft. Wave Detail: W 4 ft at 5 seconds and E 2 ft at 9 seconds. Patchy fog. Vsby 1 NM or less, increasing to 1 to 3 NM after midnight. .FRI...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 4 to 6 ft. Wave Detail: W 6 ft at 7 seconds and E 2 ft at 8 seconds. .FRI NIGHT...SW winds 15 to 20 kt, becoming W after midnight. Gusts up to 25 kt. Seas 5 to 7 ft. Wave Detail: SW 6 ft at 7 seconds and NW 5 ft at 5 seconds. A chance of showers after midnight. .SAT...N winds 10 to 15 kt with gusts up to 20 kt. Seas 4 to 5 ft. Wave Detail: SW 5 ft at 7 seconds and N 3 ft at 4 seconds. A chance of showers in the morning. .SAT NIGHT...NE winds 10 to 15 kt. Gusts up to 20 kt in the evening. Seas 3 to 4 ft. .SUN...E winds 10 to 15 kt. Seas around 3 ft. .SUN NIGHT AND MON...NE winds 5 to 10 kt, becoming NW. Seas 2 to 3 ft. A chance of showers. .MON NIGHT...NW winds 20 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. $$ ANZ283-011800- Ocean Waters from Montauk NY to Marthas Vineyard from 25 to 60 NM- 105 AM EDT Thu Oct 1 2026 .REST OF TONIGHT...SW winds 5 to 10 kt. Seas around 3 ft. Wave Detail: E 3 ft at 9 seconds and SW 1 foot at 3 seconds. .THU...SW winds 10 to 15 kt. Gusts up to 20 kt in the afternoon. Seas 3 to 4 ft. Wave Detail: W 3 ft at 4 seconds and E 3 ft at 9 seconds. .THU NIGHT...SW winds around 15 kt with gusts up to 20 kt. Seas 3 to 4 ft. Wave Detail: W 4 ft at 5 seconds and E 2 ft at 9 seconds. Patchy fog. Vsby 1 NM or less, increasing to 1 to 3 NM after midnight. .FRI...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 4 to 6 ft. Wave Detail: W 6 ft at 6 seconds and E 2 ft at 8 seconds. .FRI NIGHT...SW winds around 20 kt, becoming NW after midnight. Gusts up to 25 kt. Seas 5 to 7 ft. Wave Detail: W 7 ft at 6 seconds and SE 2 ft at 11 seconds. A chance of showers after midnight. .SAT...N winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 5 ft. Wave Detail: NE 4 ft at 4 seconds and SW 4 ft at 6 seconds. A chance of showers in the morning. .SAT NIGHT...NE winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 4 ft. .SUN...E winds 10 to 15 kt with gusts up to 20 kt. Seas around 3 ft. .SUN NIGHT AND MON...NE winds 5 to 10 kt, becoming NW. Seas 2 to 3 ft. A chance of showers. .MON NIGHT...NW winds 20 to 25 kt. Seas 3 to 5 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ 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