Coastal Waters Forecast
Issued by NWS Boston, MA
Issued by NWS Boston, MA
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471 FZUS51 KBOX 272303 CWFBOX Coastal Waters Forecast for Massachusetts and Rhode Island National Weather Service Boston/Norton MA 703 PM EDT Sun Sep 27 2026 Coastal waters from the Merrimack River MA to Watch Hill RI out to 60 NM ANZ200-281200- 703 PM EDT Sun Sep 27 2026 .Synopsis for Massachusetts and Rhode Island coastal waters... A slow moving Nor`easter will continue to bring dangerous conditions for Mariners through Monday. Northeast winds gradually diminishes to Gale Force this evening across the northeast waters, southern waters have fallen below Gale Force, gusts 25-30 kts. Improvements to winds and seas by Monday as the nor`easter finally loses its grip on our region and exits to the Gulf of Maine Monday night. High pressure builds in from the northwest starting Tuesday. $$ ANZ250-281200- Coastal waters east of Ipswich Bay and the Stellwagen Bank National Marine Sanctuary- 703 PM EDT Sun Sep 27 2026 ...GALE WARNING IN EFFECT UNTIL 9 PM EDT THIS EVENING... .TONIGHT...NE winds 20 to 25 kt with gusts up to 30 kt. Seas 7 to 10 ft. Wave Detail: E 10 ft at 9 seconds and SE 8 ft at 9 seconds. Patchy fog. Showers. A slight chance of tstms this evening, then a chance of tstms after midnight. Some tstms may produce heavy rainfall after midnight. Vsby 1 NM or less. .MON...NE winds 20 to 25 kt, diminishing to 15 to 20 kt in the afternoon. Gusts up to 30 kt. Seas 6 to 9 ft. Wave Detail: E 9 ft at 9 seconds and SE 2 ft at 7 seconds. Patchy fog. Showers. Vsby 1 NM or less, increasing to 1 to 3 NM in the afternoon. .MON NIGHT...NE winds 10 to 15 kt with gusts up to 25 kt. Seas 5 to 7 ft. Wave Detail: NE 7 ft at 8 seconds and SE 2 ft at 7 seconds. Patchy fog. Showers. Vsby 1 NM or less. .TUE...N winds 10 to 15 kt with gusts up to 20 kt. Seas 4 to 5 ft. Wave Detail: NE 5 ft at 9 seconds and S 2 ft at 7 seconds. Patchy fog. A chance of showers in the morning. Vsby 1 to 3 NM. .TUE NIGHT...N winds 5 to 10 kt. Seas 3 to 5 ft. Wave Detail: E 4 ft at 9 seconds and SE 1 foot at 7 seconds. .WED AND WED NIGHT...SW winds 5 to 10 kt. Seas 2 to 4 ft. Wave Detail: E 4 ft at 9 seconds and S 1 foot at 7 seconds. .THU THROUGH FRI...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. .FRI NIGHT...NW winds around 10 kt. Seas 2 to 3 ft. A chance of showers. Winds and seas higher in and near tstms. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ251-281200- Massachusetts Bay and Ipswich Bay- 703 PM EDT Sun Sep 27 2026 ...GALE WARNING IN EFFECT UNTIL 9 PM EDT THIS EVENING... .TONIGHT...NE winds 20 to 25 kt with gusts up to 30 kt. Seas 6 to 9 ft. Wave Detail: E 9 ft at 9 seconds. Patchy fog. Showers. A chance of tstms. Some tstms may produce heavy rainfall after midnight. Vsby 1 NM or less. .MON...NE winds 20 to 25 kt with gusts up to 30 kt. Seas 5 to 8 ft. Wave Detail: E 8 ft at 9 seconds and SE 4 ft at 7 seconds. Patchy fog. Showers. Vsby 1 NM or less, increasing to 1 to 3 NM in the afternoon. .MON NIGHT...NE winds 15 to 20 kt, becoming N 10 to 15 kt after midnight. Gusts up to 25 kt. Seas 4 to 6 ft. Wave Detail: NE 6 ft at 9 seconds and S 2 ft at 8 seconds. Patchy fog. Showers. Vsby 1 to 3 NM. .TUE...N winds 10 to 15 kt, diminishing to 5 to 10 kt in the afternoon. Gusts up to 20 kt. Seas 3 to 5 ft. Wave Detail: NE 5 ft at 8 seconds and NW 2 ft at 8 seconds. Patchy fog. Showers likely in the morning. Vsby 1 to 3 NM. .TUE NIGHT...N winds around 5 kt. Seas 2 to 4 ft. Wave Detail: E 4 ft at 9 seconds and SW 1 foot at 8 seconds. .WED AND WED NIGHT...SW winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: E 3 ft at 9 seconds and S 2 ft at 10 seconds. .THU THROUGH FRI NIGHT...NW winds 5 to 10 kt. Seas around 2 ft. 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. $$ ANZ231-281200- Cape Cod Bay- 703 PM EDT Sun Sep 27 2026 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH MONDAY AFTERNOON... .TONIGHT...E winds 15 to 20 kt with gusts up to 30 kt. Seas 4 to 6 ft. Wave Detail: E 5 ft at 6 seconds. Patchy fog. Showers. A chance of tstms. Some tstms may produce heavy rainfall after midnight. Vsby 1 NM or less. .MON...E winds 10 to 15 kt, diminishing to 5 to 10 kt in the afternoon. Gusts up to 25 kt. Seas 3 to 5 ft. Wave Detail: NE 4 ft at 7 seconds and E 2 ft at 4 seconds. Patchy fog. Showers likely. Vsby 1 NM or less, increasing to 1 to 3 NM in the afternoon. .MON NIGHT...E winds 5 to 10 kt, becoming N with gusts up to 20 kt after midnight. Seas 2 to 4 ft. Wave Detail: NE 4 ft at 7 seconds. Patchy fog. Showers in the evening. A chance of showers after midnight. Vsby 1 to 3 NM. .TUE...NW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Wave Detail: N 3 ft at 6 seconds. Patchy fog. Showers likely in the morning. Vsby 1 to 3 NM. .TUE NIGHT...N winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: N 2 ft at 5 seconds. .WED AND WED NIGHT...SW winds around 5 kt. Seas around 2 ft. Wave Detail: N 2 ft at 6 seconds. .THU THROUGH FRI...SW winds 5 to 10 kt with gusts up to 20 kt. Seas around 2 ft. .FRI NIGHT...NW winds around 10 kt. Seas around 2 ft. A chance of showers. Winds and seas higher in and near tstms. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ254-281200- Coastal waters from Provincetown MA to Chatham MA to Nantucket MA out 20 NM- 703 PM EDT Sun Sep 27 2026 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH MONDAY EVENING... .TONIGHT...E winds 15 to 20 kt with gusts up to 25 kt. Seas 6 to 9 ft. Wave Detail: E 9 ft at 9 seconds and S 5 ft at 8 seconds. Patchy fog. Showers. A chance of tstms. Some tstms may produce heavy rainfall after midnight. Vsby 1 NM or less. .MON...E winds 10 to 15 kt with gusts up to 25 kt, becoming SE 5 to 10 kt in the afternoon. Seas 5 to 8 ft. Wave Detail: NE 7 ft at 9 seconds and S 3 ft at 7 seconds. Patchy fog. A chance of showers. Vsby 1 NM or less, increasing to 1 to 3 NM in the afternoon. .MON NIGHT...SE winds 5 to 10 kt, becoming S after midnight. Seas 4 to 6 ft. Wave Detail: E 6 ft at 8 seconds and S 3 ft at 7 seconds. Patchy fog. A chance of showers. Vsby 1 NM or less, increasing to 1 to 3 NM after midnight. .TUE...NW winds 10 to 15 kt with gusts up to 20 kt. Seas 4 to 5 ft. Wave Detail: E 5 ft at 8 seconds and S 3 ft at 7 seconds. Patchy fog. Showers likely in the morning. Vsby 1 to 3 NM. .TUE NIGHT AND WED...NW winds 5 to 10 kt. Seas 3 to 5 ft. Wave Detail: E 4 ft at 9 seconds and SW 2 ft at 7 seconds. .WED NIGHT...SW winds 5 to 10 kt. Seas 3 to 4 ft. Wave Detail: E 4 ft at 9 seconds and S 1 foot at 6 seconds. .THU THROUGH FRI...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. .FRI NIGHT...W winds 10 to 15 kt with gusts up to 20 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. $$ ANZ255-281200- Coastal Waters extending out to 25 NM South of Marthas Vineyard and Nantucket- 703 PM EDT Sun Sep 27 2026 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH MONDAY EVENING... .TONIGHT...E winds 10 to 15 kt with gusts up to 20 kt. Seas 5 to 7 ft. Wave Detail: S 6 ft at 8 seconds and E 5 ft at 9 seconds. Patchy fog. Showers. A chance of tstms. Some tstms may produce heavy rainfall after midnight. Vsby 1 NM or less. .MON...SE winds 5 to 10 kt. Seas 4 to 6 ft. Wave Detail: S 4 ft at 7 seconds and E 4 ft at 9 seconds. Patchy fog. Showers likely. Vsby 1 NM or less, increasing to 1 to 3 NM in the afternoon. .MON NIGHT...SE winds 5 to 10 kt, becoming SW after midnight. Seas 4 to 6 ft. Wave Detail: SW 4 ft at 7 seconds and E 4 ft at 9 seconds. A chance of showers. Patchy fog after midnight with vsby 1 to 3 NM. .TUE...NW winds 10 to 15 kt. Seas 4 to 6 ft. Wave Detail: SW 4 ft at 7 seconds and E 3 ft at 8 seconds. Patchy fog in the morning with vsby 1 to 3 NM. .TUE NIGHT AND WED...W winds 5 to 10 kt. Seas 2 to 4 ft. Wave Detail: W 3 ft at 6 seconds and NE 3 ft at 9 seconds. .WED NIGHT...SW winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: E 3 ft at 9 seconds and S 1 foot at 7 seconds. .THU THROUGH FRI NIGHT...W winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. Winds and seas higher in and near tstms. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ256-281200- Coastal Waters from Montauk NY to Marthas Vineyard extending out to 20 NM South of Block Island- 703 PM EDT Sun Sep 27 2026 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH MONDAY EVENING... .TONIGHT...E winds 10 to 15 kt with gusts up to 20 kt. Seas 5 to 7 ft. Wave Detail: S 5 ft at 8 seconds and E 5 ft at 9 seconds. Patchy fog. Showers. A chance of tstms. Some tstms may produce heavy rainfall after midnight. Vsby 1 NM or less. .MON...E winds around 10 kt. Seas 4 to 6 ft. Wave Detail: S 5 ft at 7 seconds and E 3 ft at 9 seconds. Patchy fog. Showers. Vsby 1 NM or less, increasing to 1 to 3 NM in the afternoon. .MON NIGHT...E winds around 10 kt with gusts up to 20 kt, becoming N after midnight. Seas 4 to 6 ft. Wave Detail: S 5 ft at 7 seconds and E 3 ft at 9 seconds. Patchy fog. Showers. Vsby 1 to 3 NM. .TUE...NW winds 10 to 15 kt, diminishing to 5 to 10 kt in the afternoon. Seas 3 to 5 ft. Wave Detail: NW 4 ft at 6 seconds and E 3 ft at 8 seconds. Patchy fog in the morning. .TUE NIGHT...NW winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: W 2 ft at 7 seconds and E 2 ft at 9 seconds. .WED AND WED NIGHT...SW winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: E 3 ft at 9 seconds and S 1 foot at 7 seconds. .THU THROUGH FRI NIGHT...NW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. 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. $$ ANZ232-281200- Nantucket Sound- 703 PM EDT Sun Sep 27 2026 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH MONDAY MORNING... .TONIGHT...E winds 15 to 20 kt, diminishing to 10 to 15 kt after midnight. Gusts up to 25 kt. Seas 3 to 5 ft. Wave Detail: E 4 ft at 8 seconds and SE 3 ft at 7 seconds. Patchy fog. Showers. A chance of tstms. Some tstms may produce heavy rainfall after midnight. Vsby 1 NM or less. .MON...E winds 10 to 15 kt, diminishing to 5 to 10 kt in the afternoon. Seas 2 to 4 ft. Wave Detail: E 3 ft at 9 seconds and SE 2 ft at 6 seconds. Patchy fog. Showers likely. Vsby 1 NM or less, increasing to 1 to 3 NM in the afternoon. .MON NIGHT...SE winds 5 to 10 kt, becoming NW after midnight. Seas 2 to 4 ft. Wave Detail: E 3 ft at 9 seconds and S 2 ft at 7 seconds. A chance of showers. Patchy fog after midnight. .TUE...NW winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: NW 2 ft at 5 seconds and E 2 ft at 8 seconds. Patchy fog. Showers likely in the morning. Vsby 1 to 3 NM. .TUE NIGHT...NW winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: NW 2 ft at 4 seconds and NE 2 ft at 9 seconds. .WED AND WED NIGHT...SW winds 5 to 10 kt. Seas around 2 ft. Wave Detail: E 2 ft at 9 seconds and SW 1 foot at 6 seconds. .THU THROUGH FRI...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. .FRI NIGHT...NW winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft. A chance of showers. Winds and seas higher in and near tstms. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ233-281200- Vineyard Sound- 703 PM EDT Sun Sep 27 2026 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH MONDAY MORNING... .TONIGHT...E winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 4 ft. Wave Detail: S 4 ft at 8 seconds and E 3 ft at 6 seconds. Patchy fog. Showers. A chance of tstms. Some tstms may produce heavy rainfall after midnight. Vsby 1 NM or less. .MON...E winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: SE 3 ft at 7 seconds. Patchy fog. Showers likely. Vsby 1 NM or less, increasing to 1 to 3 NM in the afternoon. .MON NIGHT...NE winds 5 to 10 kt, becoming N after midnight. Seas 2 to 3 ft. Wave Detail: SE 3 ft at 7 seconds and E 2 ft at 11 seconds. Patchy fog. Showers. Vsby 1 to 3 NM after midnight. .TUE...NW winds 10 to 15 kt, diminishing to 5 to 10 kt in the afternoon. Seas 2 to 3 ft. Wave Detail: NW 3 ft at 7 seconds and E 1 foot at 8 seconds. Patchy fog in the morning with vsby 1 to 3 NM. .TUE NIGHT...N winds around 5 kt. Seas around 2 ft. Wave Detail: SW 2 ft at 5 seconds and NE 1 foot at 8 seconds. .WED AND WED NIGHT...SW winds 5 to 10 kt. Seas around 2 ft. Wave Detail: SW 1 foot at 6 seconds and E 1 foot at 12 seconds. .THU THROUGH FRI...SW winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft. .FRI NIGHT...NW winds 10 to 15 kt with gusts up to 20 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. $$ ANZ234-281200- Buzzards Bay- 703 PM EDT Sun Sep 27 2026 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH MONDAY MORNING... .TONIGHT...NE winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 4 ft. Wave Detail: E 3 ft at 4 seconds and SE 3 ft at 7 seconds. Patchy fog. Showers. A chance of tstms. Some tstms may produce heavy rainfall after midnight. Vsby 1 NM or less. .MON...E winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: E 2 ft at 5 seconds and NE 2 ft at 10 seconds. Patchy fog. A chance of showers in the morning. Showers likely in the afternoon. Vsby 1 NM or less, increasing to 1 to 3 NM in the afternoon. .MON NIGHT...NE winds around 10 kt, becoming N after midnight. Seas 2 to 3 ft. Wave Detail: E 3 ft at 7 seconds and E 1 foot at 15 seconds. Patchy fog. Showers. Vsby 1 to 3 NM after midnight. .TUE...NW winds 5 to 10 kt. Seas around 2 ft. Wave Detail: W 2 ft at 7 seconds and NE 1 foot at 5 seconds. Patchy fog in the morning with vsby 1 to 3 NM. .TUE NIGHT...N winds around 5 kt. Seas around 2 ft in the evening, then 1 foot or less. Wave Detail: NE 1 foot at 3 seconds and SW 1 foot at 6 seconds, becoming E 1 foot at 4 seconds and SW 1 foot at 5 seconds. .WED AND WED NIGHT...SW winds 5 to 10 kt. Seas 1 foot or less. Wave Detail: SW 1 foot at 5 seconds and E 1 foot at 11 seconds. .THU THROUGH FRI...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. .FRI NIGHT...NW winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft. A chance of showers. Winds and seas higher in and near tstms. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ235-281200- Rhode Island Sound- 703 PM EDT Sun Sep 27 2026 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH MONDAY MORNING... .TONIGHT...E winds 15 to 20 kt, diminishing to 10 to 15 kt after midnight. Seas 4 to 6 ft. Wave Detail: S 6 ft at 8 seconds and NE 5 ft at 7 seconds. Patchy fog. Showers. A chance of tstms. Some tstms may produce heavy rainfall after midnight. Vsby 1 NM or less. .MON...E winds 10 to 15 kt. Seas 3 to 4 ft. Wave Detail: E 4 ft at 7 seconds. Patchy fog. Showers. Vsby 1 NM or less, increasing to 1 to 3 NM in the afternoon. .MON NIGHT...NE winds 10 to 15 kt, becoming N after midnight. Seas 3 to 4 ft. Wave Detail: S 4 ft at 7 seconds and NE 2 ft at 9 seconds. Patchy fog. Showers. Vsby 1 to 3 NM. .TUE...NW winds 10 to 15 kt, diminishing to 5 to 10 kt in the afternoon. Seas 2 to 4 ft. Wave Detail: NW 4 ft at 7 seconds and E 2 ft at 9 seconds. Patchy fog in the morning with vsby 1 to 3 NM. .TUE NIGHT...N winds 5 to 10 kt. Seas around 2 ft. Wave Detail: SW 2 ft at 6 seconds and NE 2 ft at 9 seconds. .WED AND WED NIGHT...SW winds 5 to 10 kt. Seas around 2 ft. Wave Detail: SE 2 ft at 11 seconds and S 1 foot at 7 seconds. .THU THROUGH FRI NIGHT...NW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. 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. $$ ANZ237-281200- Block Island Sound- 703 PM EDT Sun Sep 27 2026 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH MONDAY MORNING... .TONIGHT...NE winds around 15 kt with gusts up to 25 kt. Seas 5 to 7 ft, subsiding to 3 to 5 ft after midnight. Wave Detail: S 7 ft at 8 seconds and E 7 ft at 8 seconds, becoming SE 4 ft at 7 seconds. Patchy fog. Showers. A chance of tstms. Some tstms may produce heavy rainfall after midnight. Vsby 1 NM or less. .MON...E winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 4 ft. Wave Detail: S 4 ft at 7 seconds and E 3 ft at 7 seconds. Patchy fog. Showers. Vsby 1 to 3 NM. .MON NIGHT...NE winds 10 to 15 kt with gusts up to 20 kt, becoming N after midnight. Seas 3 to 4 ft. Wave Detail: S 4 ft at 7 seconds and NE 2 ft at 8 seconds. Patchy fog. Showers. Vsby 1 to 3 NM. .TUE...NW winds 5 to 10 kt. Seas 2 to 4 ft. Wave Detail: W 3 ft at 7 seconds and NE 2 ft at 8 seconds. Patchy fog in the morning. .TUE NIGHT...NW winds around 5 kt. Seas around 2 ft. Wave Detail: S 2 ft at 6 seconds and E 2 ft at 9 seconds. .WED AND WED NIGHT...SW winds 5 to 10 kt. Seas around 2 ft. Wave Detail: SE 2 ft at 10 seconds and S 1 foot at 7 seconds. .THU THROUGH FRI NIGHT...NW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Winds and seas higher in and near tstms. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ230-281200- Boston Harbor- 703 PM EDT Sun Sep 27 2026 ...GALE WARNING IN EFFECT UNTIL 9 PM EDT THIS EVENING... .TONIGHT...NE winds 20 to 25 kt with gusts up to 30 kt. Waves 2 to 3 ft, except 4 to 6 ft at the outer harbor entrance. Patchy fog. Showers. A chance of tstms. Some tstms may produce heavy rainfall after midnight. Vsby 1 NM or less. .MON...NE winds 15 to 20 kt with gusts up to 30 kt. Waves 2 to 3 ft, except 4 to 6 ft at the outer harbor entrance. Patchy fog. Showers. Vsby 1 NM or less, increasing to 1 to 3 NM in the afternoon. .MON NIGHT...NE winds 15 to 20 kt with gusts up to 25 kt, becoming N 10 to 15 kt after midnight. Waves 2 to 3 ft. Patchy fog. Showers. Vsby 1 to 3 NM. .TUE...N winds 5 to 10 kt. Waves around 2 ft. Patchy fog. Showers likely in the morning. Vsby 1 to 3 NM. .TUE NIGHT...N winds around 5 kt. Waves 1 foot or less. .WED AND WED NIGHT...SW winds around 5 kt. Waves 1 foot or less. .THU THROUGH FRI NIGHT...NW winds 5 to 10 kt. Waves around 2 ft. 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. $$ ANZ236-281200- Narragansett Bay- 703 PM EDT Sun Sep 27 2026 .TONIGHT...NE winds 10 to 15 kt with gusts up to 20 kt. Waves 2 to 3 ft. Patchy fog. Showers. A chance of tstms. Some tstms may produce heavy rainfall after midnight. Vsby 1 NM or less. .MON...NE winds 10 to 15 kt. Waves 2 to 3 ft. Patchy fog. Showers. Vsby 1 NM or less, increasing to 1 to 3 NM in the afternoon. .MON NIGHT...N winds around 10 kt. Waves 2 to 3 ft. Patchy fog. Showers. Vsby 1 to 3 NM. .TUE...NW winds 5 to 10 kt. Waves 2 to 3 ft. Patchy fog in the morning with vsby 1 to 3 NM. .TUE NIGHT...N winds around 5 kt. Waves around 2 ft. .WED AND WED NIGHT...SW winds 5 to 10 kt. Waves 1 foot or less. .THU THROUGH FRI NIGHT...NW winds 10 to 15 kt with gusts up to 20 kt. Waves around 2 ft. Winds and waves higher in and near tstms. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ280-281200- Ocean Waters from the Merrimack River to Plymouth from 40 to 60 NM- 703 PM EDT Sun Sep 27 2026 ...GALE WARNING IN EFFECT UNTIL 9 PM EDT THIS EVENING... .TONIGHT...E winds 20 to 25 kt with gusts up to 30 kt. Seas 9 to 11 ft. Wave Detail: E 11 ft at 9 seconds and S 4 ft at 9 seconds. Patchy fog. Showers. A chance of tstms. Some tstms may produce heavy rainfall after midnight. Vsby 1 NM or less. .MON...E winds 20 to 25 kt, diminishing to 15 to 20 kt in the afternoon. Gusts up to 30 kt. Seas 8 to 9 ft, subsiding to 6 to 8 ft in the afternoon. Wave Detail: E 9 ft at 9 seconds and S 3 ft at 8 seconds, becoming E 8 ft at 9 seconds and S 2 ft at 8 seconds. Patchy fog. Showers. Vsby 1 NM or less, increasing to 1 to 3 NM in the afternoon. .MON NIGHT...E winds 10 to 15 kt. Gusts up to 20 kt in the evening. Seas 5 to 7 ft. Wave Detail: E 6 ft at 8 seconds and S 2 ft at 7 seconds. Patchy fog. Showers. Vsby 1 NM or less. .TUE...N winds 10 to 15 kt with gusts up to 20 kt. Seas around 5 ft. Wave Detail: NE 5 ft at 9 seconds and S 2 ft at 7 seconds. Patchy fog. Showers likely in the morning. Vsby 1 to 3 NM. .TUE NIGHT AND WED...NW winds 10 to 15 kt. Seas 3 to 5 ft. Wave Detail: NE 5 ft at 9 seconds and S 2 ft at 7 seconds. .WED NIGHT...SW winds 5 to 10 kt. Seas 3 to 4 ft. Wave Detail: E 3 ft at 9 seconds and S 1 foot at 7 seconds. .THU THROUGH FRI...SW winds 10 to 15 kt with gusts up to 25 kt. Seas 3 to 4 ft. .FRI NIGHT...NW winds around 15 kt with gusts up to 20 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. $$ ANZ281-281200- Ocean Waters from Provincetown to Nantucket from 20 to 60 NM- 703 PM EDT Sun Sep 27 2026 .TONIGHT...E winds 15 to 20 kt with gusts up to 30 kt. Seas 7 to 10 ft. Wave Detail: E 8 ft at 9 seconds and S 6 ft at 9 seconds. Patchy fog. Showers. A chance of tstms. Some tstms may produce heavy rainfall after midnight. Vsby 1 NM or less. .MON...E winds 10 to 15 kt with gusts up to 25 kt, becoming SE 5 to 10 kt in the afternoon. Seas 7 to 9 ft, subsiding to 6 to 7 ft in the afternoon. Wave Detail: NE 8 ft at 9 seconds and S 4 ft at 7 seconds, becoming NE 7 ft at 9 seconds and S 4 ft at 7 seconds. Patchy fog. A chance of showers in the morning. Showers in the afternoon. Vsby 1 NM or less. .MON NIGHT...S winds 5 to 10 kt. Seas 5 to 7 ft. Wave Detail: E 6 ft at 8 seconds and S 4 ft at 7 seconds. Patchy fog. Showers, mainly in the evening. Vsby 1 NM or less. .TUE...W winds 10 to 15 kt, becoming NW with gusts up to 20 kt in the afternoon. Seas 5 to 7 ft. Wave Detail: S 5 ft at 7 seconds and E 5 ft at 9 seconds. Patchy fog. Showers likely in the morning. Vsby 1 to 3 NM. .TUE NIGHT AND WED...NW winds 5 to 10 kt. Seas 4 to 5 ft. Wave Detail: NE 4 ft at 9 seconds and S 3 ft at 7 seconds. .WED NIGHT...W winds around 5 kt, becoming SW after midnight. Seas 3 to 4 ft. Wave Detail: E 4 ft at 9 seconds and S 1 foot at 7 seconds. .THU THROUGH FRI NIGHT...W winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 4 ft. Winds and seas higher in and near tstms. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ282-281200- Ocean Waters from Marthas Vineyard to Nantucket from 25 to 60 NM- 703 PM EDT Sun Sep 27 2026 .TONIGHT...E winds 5 to 10 kt. Gusts up to 20 kt this evening. Seas 6 to 8 ft. Wave Detail: S 6 ft at 8 seconds and NE 5 ft at 9 seconds. Patchy fog. Showers. A chance of tstms. Some tstms may produce heavy rainfall after midnight. Vsby 1 NM or less. .MON...S winds 5 to 10 kt. Seas 6 to 7 ft. Wave Detail: S 5 ft at 7 seconds and NE 5 ft at 9 seconds. A chance of showers. Patchy fog in the morning. Vsby 1 NM or less. .MON NIGHT...SW winds 10 to 15 kt. Gusts up to 20 kt after midnight. Seas 6 to 8 ft. Wave Detail: SW 6 ft at 7 seconds and NE 5 ft at 8 seconds. A chance of showers in the evening, then showers likely after midnight. Patchy fog after midnight with vsby 1 to 3 NM. .TUE...W winds 10 to 15 kt. Gusts up to 20 kt in the morning. Seas 5 to 8 ft, subsiding to 5 to 6 ft in the afternoon. Wave Detail: SW 6 ft at 7 seconds and E 4 ft at 8 seconds, becoming W 4 ft at 7 seconds and E 4 ft at 9 seconds. Patchy fog in the morning with vsby 1 to 3 NM. .TUE NIGHT AND WED...NW winds 5 to 10 kt. Seas 3 to 5 ft. Wave Detail: E 4 ft at 9 seconds and W 3 ft at 6 seconds. .WED NIGHT...W winds around 5 kt. Seas 3 to 4 ft. Wave Detail: E 4 ft at 9 seconds and S 1 foot at 7 seconds. .THU THROUGH FRI NIGHT...W winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 4 ft. 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. $$ ANZ283-281200- Ocean Waters from Montauk NY to Marthas Vineyard from 25 to 60 NM- 703 PM EDT Sun Sep 27 2026 .TONIGHT...E winds 10 to 15 kt. Gusts up to 20 kt this evening. Seas 6 to 8 ft. Wave Detail: S 6 ft at 8 seconds and E 5 ft at 9 seconds. Patchy fog. Showers. A chance of tstms. Some tstms may produce heavy rainfall after midnight. Vsby 1 NM or less. .MON...S winds 10 to 15 kt. Seas 5 to 7 ft. Wave Detail: SW 6 ft at 7 seconds and E 4 ft at 9 seconds. Patchy fog. A chance of showers. Vsby 1 to 3 NM. .MON NIGHT...SW winds 10 to 15 kt, becoming W after midnight. Gusts up to 20 kt. Seas 5 to 8 ft. Wave Detail: SW 7 ft at 7 seconds and E 4 ft at 9 seconds. Patchy fog. Showers. .TUE...NW winds 10 to 15 kt. Gusts up to 20 kt in the morning. Seas 4 to 6 ft. Wave Detail: NW 5 ft at 6 seconds and E 3 ft at 8 seconds. Patchy fog in the morning. .TUE NIGHT AND WED...NW winds 5 to 10 kt. Seas 3 to 4 ft. Wave Detail: NW 3 ft at 6 seconds and E 3 ft at 9 seconds. .WED NIGHT...W winds 5 to 10 kt. Seas around 3 ft. Wave Detail: E 3 ft at 9 seconds and S 1 foot at 7 seconds. .THU THROUGH FRI NIGHT...W winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 4 ft. Winds and seas higher in and near tstms. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ 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