Coastal Waters Forecast
Issued by NWS Boston, MA
Issued by NWS Boston, MA
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881 FZUS51 KBOX 282306 CWFBOX Coastal Waters Forecast for Massachusetts and Rhode Island National Weather Service Boston/Norton MA 705 PM EDT Mon Sep 28 2026 Coastal waters from the Merrimack River MA to Watch Hill RI out to 60 NM ANZ200-291200- 705 PM EDT Mon Sep 28 2026 .Synopsis for Massachusetts and Rhode Island coastal waters... A slow moving Nor`easter will move across the region overnight and then to the Gulf of Maine for Tuesday. High pressure will build into the area for Wednesday, and then be positioned over the Atlantic well to our southeast for Thursday and Friday. $$ ANZ250-291200- Coastal waters east of Ipswich Bay and the Stellwagen Bank National Marine Sanctuary- 705 PM EDT Mon Sep 28 2026 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH TUESDAY AFTERNOON... .TONIGHT...E winds 5 to 10 kt, becoming N 10 to 15 kt after midnight. Gusts up to 20 kt. Seas 5 to 7 ft. Wave Detail: NE 6 ft at 7 seconds and SE 2 ft at 8 seconds. Patchy fog. Showers this evening. A chance of showers after midnight. Vsby 1 NM or less. .TUE...NW winds 10 to 15 kt with gusts up to 20 kt, becoming N 5 to 10 kt in the afternoon. Seas 4 to 5 ft. Wave Detail: N 4 ft at 6 seconds and SE 2 ft at 7 seconds. Patchy fog in the morning with vsby 1 NM or less. .TUE NIGHT...N winds around 5 kt. Seas 3 to 4 ft. Wave Detail: E 3 ft at 9 seconds and N 2 ft at 5 seconds. .WED...NW winds around 5 kt. Seas 3 to 4 ft. Wave Detail: E 3 ft at 9 seconds and N 1 foot at 2 seconds. .WED NIGHT THROUGH THU NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 4 ft. Wave Detail: SW 3 ft at 4 seconds and E 3 ft at 9 seconds. .FRI...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. Wave Detail: SW 2 ft at 4 seconds and E 2 ft at 8 seconds. .FRI NIGHT...NW winds 5 to 10 kt. Seas 2 to 3 ft. A chance of showers. .SAT AND SAT NIGHT...N winds 5 to 10 kt, becoming E. Seas 2 to 3 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ251-291200- Massachusetts Bay and Ipswich Bay- 705 PM EDT Mon Sep 28 2026 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH TUESDAY AFTERNOON... .TONIGHT...NE winds 10 to 15 kt with gusts up to 25 kt, becoming N after midnight. Seas 4 to 6 ft. Wave Detail: NE 6 ft at 7 seconds and SE 2 ft at 8 seconds. Patchy fog. Showers this evening. A chance of showers after midnight. Vsby 1 NM or less. .TUE...NW winds 10 to 15 kt, becoming N 5 to 10 kt in the afternoon. Seas 3 to 5 ft. Wave Detail: N 4 ft at 7 seconds and SE 1 foot at 8 seconds. Patchy fog in the morning with vsby 1 to 3 NM. .TUE NIGHT...NW winds around 5 kt. Seas 2 to 3 ft. Wave Detail: E 3 ft at 9 seconds and SW 2 ft at 4 seconds. .WED...NW winds around 5 kt, becoming SE in the afternoon. Seas 2 to 3 ft. Wave Detail: E 3 ft at 9 seconds and N 1 foot at 5 seconds. .WED NIGHT THROUGH THU NIGHT...SW 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 E 3 ft at 9 seconds. .FRI...SW winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: SW 2 ft at 3 seconds and E 2 ft at 8 seconds. .FRI NIGHT...NW winds 5 to 10 kt. Seas around 2 ft. A chance of showers. .SAT AND SAT NIGHT...N winds 5 to 10 kt, becoming E. Seas around 2 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ231-291200- Cape Cod Bay- 705 PM EDT Mon Sep 28 2026 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 8 PM EDT THIS EVENING... .TONIGHT...E winds around 5 kt, becoming NW 10 to 15 kt with gusts up to 20 kt after midnight. Seas 2 to 4 ft. Wave Detail: NE 4 ft at 7 seconds and SE 1 foot at 8 seconds. Patchy fog. A chance of showers this evening. A slight chance of showers after midnight. Vsby 1 NM or less. .TUE...NW winds 10 to 15 kt, diminishing to 5 to 10 kt in the afternoon. Seas 2 to 3 ft. Wave Detail: N 3 ft at 6 seconds and E 3 ft at 9 seconds. Patchy fog in the morning with vsby 1 NM or less. .TUE NIGHT...N winds around 5 kt. Seas 2 to 3 ft. Wave Detail: N 2 ft at 6 seconds and E 2 ft at 9 seconds. .WED...N winds around 5 kt, becoming NE around 5 kt in the afternoon. Seas around 2 ft. Wave Detail: N 1 foot at 5 seconds and S 1 foot at 7 seconds. .WED NIGHT THROUGH THU NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Wave Detail: SW 3 ft at 4 seconds and E 2 ft at 8 seconds. .FRI...SW winds 5 to 10 kt. Seas around 2 ft. Wave Detail: SW 2 ft at 3 seconds and E 1 foot at 4 seconds. .FRI NIGHT AND SAT...NW winds 5 to 10 kt, becoming N 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft. A chance of showers. .SAT NIGHT...NE winds 5 to 10 kt. Seas around 2 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ254-291200- Coastal waters from Provincetown MA to Chatham MA to Nantucket MA out 20 NM- 705 PM EDT Mon Sep 28 2026 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH TUESDAY MORNING... .TONIGHT...SE winds 5 to 10 kt, becoming SW 10 to 15 kt after midnight. Seas 4 to 6 ft. Wave Detail: NE 5 ft at 6 seconds and S 3 ft at 7 seconds. Patchy fog. A chance of showers this evening. Vsby 1 NM or less. .TUE...W winds 10 to 15 kt. Gusts up to 20 kt in the morning. Seas 3 to 5 ft. Wave Detail: NE 4 ft at 7 seconds and S 3 ft at 7 seconds. Patchy fog in the morning with vsby 1 NM or less. .TUE NIGHT...NW winds 5 to 10 kt. Seas 3 to 4 ft. Wave Detail: E 3 ft at 9 seconds and N 2 ft at 5 seconds. .WED...NW winds around 5 kt. Seas 3 to 4 ft. Wave Detail: E 3 ft at 9 seconds and N 1 foot at 5 seconds. .WED NIGHT THROUGH THU NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 4 ft. Wave Detail: SW 3 ft at 4 seconds and E 3 ft at 9 seconds. .FRI...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 4 ft. Wave Detail: SW 3 ft at 5 seconds and E 2 ft at 8 seconds. .FRI NIGHT AND SAT...W winds 5 to 10 kt, becoming N 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. A chance of showers. .SAT NIGHT...NE winds 5 to 10 kt. Seas 2 to 3 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ255-291200- Coastal Waters extending out to 25 NM South of Marthas Vineyard and Nantucket- 705 PM EDT Mon Sep 28 2026 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 2 AM EDT TUESDAY... .TONIGHT...S winds around 10 kt, becoming W after midnight. Seas 4 to 6 ft. Wave Detail: S 5 ft at 8 seconds and E 4 ft at 9 seconds. Patchy fog. A chance of showers this evening. Vsby 1 NM or less. .TUE...W winds 10 to 15 kt. Seas 3 to 5 ft. Wave Detail: SW 4 ft at 7 seconds and E 3 ft at 8 seconds. Patchy fog in the morning with vsby 1 NM or less. .TUE NIGHT...NW winds 5 to 10 kt. Seas 2 to 4 ft. Wave Detail: N 3 ft at 5 seconds and E 3 ft at 9 seconds. .WED...N winds around 5 kt, becoming NW around 5 kt in the afternoon. Seas 2 to 3 ft. Wave Detail: S 2 ft at 6 seconds and E 2 ft at 9 seconds. .WED NIGHT THROUGH THU NIGHT...SW winds 15 to 20 kt. Seas 2 to 4 ft. Wave Detail: SW 4 ft at 5 seconds and E 2 ft at 9 seconds. .FRI...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 4 ft. Wave Detail: W 4 ft at 5 seconds and E 1 foot at 5 seconds. .FRI NIGHT AND SAT...W winds 10 to 15 kt, becoming NE. Seas 2 to 3 ft. A chance of showers. .SAT NIGHT...NE winds 10 to 15 kt. Seas 2 to 3 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ256-291200- Coastal Waters from Montauk NY to Marthas Vineyard extending out to 20 NM South of Block Island- 705 PM EDT Mon Sep 28 2026 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 2 AM EDT TUESDAY... .TONIGHT...NW winds 10 to 15 kt. Seas 4 to 6 ft. Wave Detail: S 5 ft at 8 seconds and E 3 ft at 9 seconds. Patchy fog. A chance of showers this evening. Vsby 1 to 3 NM, decreasing to 1 NM or less after midnight. .TUE...NW winds 10 to 15 kt. Seas 3 to 4 ft. Wave Detail: S 3 ft at 7 seconds and NW 2 ft at 3 seconds. .TUE NIGHT...W winds 5 to 10 kt, becoming N after midnight. Seas 2 to 3 ft. Wave Detail: SW 2 ft at 6 seconds and E 2 ft at 8 seconds. .WED...N winds around 5 kt, becoming W in the afternoon. Seas 2 to 3 ft. Wave Detail: E 2 ft at 9 seconds and NW 1 foot at 3 seconds. .WED NIGHT THROUGH THU NIGHT...SW winds 15 to 20 kt. Seas 2 to 4 ft. Wave Detail: SW 4 ft at 5 seconds and E 2 ft at 9 seconds. .FRI...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 4 ft. Wave Detail: SW 4 ft at 5 seconds and SE 1 foot at 5 seconds. .FRI NIGHT AND SAT...W winds 10 to 15 kt, becoming NE with gusts up to 20 kt. Seas 2 to 4 ft. A chance of showers. .SAT NIGHT...E winds 10 to 15 kt. Seas 2 to 3 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ232-291200- Nantucket Sound- 705 PM EDT Mon Sep 28 2026 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 8 PM EDT THIS EVENING... .TONIGHT...SE winds 5 to 10 kt, becoming W 10 to 15 kt after midnight. Seas 2 to 4 ft. Wave Detail: S 2 ft at 7 seconds and N 2 ft at 8 seconds. Patchy fog. A chance of showers this evening. Vsby 1 NM or less. .TUE...W winds 10 to 15 kt, becoming NW 5 to 10 kt in the afternoon. Seas 2 to 3 ft. Wave Detail: W 2 ft at 3 seconds and E 2 ft at 8 seconds. Patchy fog in the morning with vsby 1 NM or less. .TUE NIGHT...NW winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: NE 2 ft at 6 seconds and E 2 ft at 9 seconds. .WED...N winds around 5 kt, becoming W in the afternoon. Seas around 2 ft. Wave Detail: NW 1 foot at 5 seconds and SW 1 foot at 6 seconds. .WED NIGHT THROUGH THU NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Wave Detail: SW 2 ft at 3 seconds and S 2 ft at 7 seconds. .FRI...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Wave Detail: SW 2 ft at 4 seconds and E 1 foot at 8 seconds. .FRI NIGHT AND SAT...W winds 10 to 15 kt, becoming N. Seas around 2 ft. A chance of showers. .SAT NIGHT...NE winds 10 to 15 kt. Seas around 2 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ233-291200- Vineyard Sound- 705 PM EDT Mon Sep 28 2026 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 8 PM EDT THIS EVENING... .TONIGHT...NE winds 5 to 10 kt, becoming NW after midnight. Seas 2 to 4 ft. Wave Detail: N 3 ft at 7 seconds and SW 3 ft at 8 seconds. Patchy fog. A chance of showers this evening. Vsby 1 to 3 NM. .TUE...NW winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: SW 3 ft at 7 seconds and NW 1 foot at 3 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 6 seconds and NE 2 ft at 9 seconds. .WED...N winds around 5 kt, becoming SW in the afternoon. Seas 1 foot or less. Wave Detail: SW 1 foot at 5 seconds and N 1 foot at 6 seconds. .WED NIGHT THROUGH THU NIGHT...SW 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 1 foot at 4 seconds. .FRI...SW winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: SW 3 ft at 6 seconds and W 1 foot at 2 seconds. .FRI NIGHT AND SAT...NW winds 5 to 10 kt, becoming NE 10 to 15 kt. Seas around 2 ft. A chance of showers. .SAT NIGHT...NE winds 5 to 10 kt. Seas around 2 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ234-291200- Buzzards Bay- 705 PM EDT Mon Sep 28 2026 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 8 PM EDT THIS EVENING... .TONIGHT...NE winds 5 to 10 kt, becoming NW after midnight. Seas 2 to 3 ft. Wave Detail: N 3 ft at 6 seconds and SW 2 ft at 8 seconds. Patchy fog. Showers likely this evening. Vsby 1 NM or less. .TUE...NW winds 5 to 10 kt. Seas around 2 ft. Wave Detail: NE 2 ft at 6 seconds and SW 2 ft at 7 seconds. Patchy fog in the morning with vsby 1 to 3 NM. .TUE NIGHT...N winds around 5 kt. Seas 1 foot or less. Wave Detail: N 1 foot at 5 seconds and SW 1 foot at 6 seconds. .WED...N winds around 5 kt, becoming SW around 5 kt in the afternoon. Seas 1 foot or less. Wave Detail: SW 1 foot at 5 seconds and N 1 foot at 7 seconds. .WED NIGHT THROUGH THU NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Wave Detail: SW 2 ft at 4 seconds and NE 1 foot at 4 seconds. .FRI...SW winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft. Wave Detail: SW 2 ft at 3 seconds and SW 2 ft at 6 seconds. .FRI NIGHT AND SAT...NW winds 5 to 10 kt, becoming NE 10 to 15 kt. Seas around 2 ft. A chance of showers. .SAT NIGHT...NE winds 5 to 10 kt. Seas 1 foot or less. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ235-291200- Rhode Island Sound- 705 PM EDT Mon Sep 28 2026 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 8 PM EDT THIS EVENING... .TONIGHT...N winds 5 to 10 kt, becoming NW 10 to 15 kt after midnight. Seas 3 to 5 ft. Wave Detail: S 4 ft at 8 seconds and NE 3 ft at 6 seconds. Patchy fog. A chance of showers this evening. Vsby 1 NM or less, increasing to 1 to 3 NM after midnight. .TUE...NW winds 10 to 15 kt, becoming W 5 to 10 kt in the afternoon. Seas 2 to 3 ft. Wave Detail: S 3 ft at 7 seconds and N 2 ft at 4 seconds. .TUE NIGHT...NW winds 5 to 10 kt, becoming N after midnight. Seas around 2 ft. Wave Detail: S 2 ft at 6 seconds and NE 2 ft at 8 seconds. .WED...N winds around 5 kt, becoming SW in the afternoon. Seas around 2 ft. Wave Detail: N 2 ft at 6 seconds and S 1 foot at 7 seconds. .WED NIGHT THROUGH THU NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Wave Detail: SW 3 ft at 6 seconds and SW 2 ft at 3 seconds. .FRI...SW 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 1 foot at 3 seconds. .FRI NIGHT AND SAT...NW winds 10 to 15 kt, becoming NE. Seas 2 to 3 ft. A chance of showers. .SAT NIGHT...NE winds 10 to 15 kt. Seas around 2 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ237-291200- Block Island Sound- 705 PM EDT Mon Sep 28 2026 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 8 PM EDT THIS EVENING... .TONIGHT...N winds around 10 kt. Seas 3 to 5 ft. Wave Detail: S 4 ft at 8 seconds and N 3 ft at 5 seconds. Patchy fog. A slight chance of showers this evening with vsby 1 to 3 NM. .TUE...W winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: S 3 ft at 7 seconds and E 2 ft at 9 seconds. .TUE NIGHT...NW winds 5 to 10 kt, becoming N after midnight. Seas around 2 ft. Wave Detail: NW 2 ft at 7 seconds and NE 1 foot at 4 seconds. .WED...N winds around 5 kt, becoming SW in the afternoon. Seas around 2 ft. Wave Detail: NW 2 ft at 7 seconds and SE 2 ft at 9 seconds. .WED NIGHT THROUGH THU NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Wave Detail: S 3 ft at 6 seconds and SW 2 ft at 3 seconds. .FRI...SW winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: SE 3 ft at 7 seconds and SE 1 foot at 2 seconds. .FRI NIGHT AND SAT...NW winds 5 to 10 kt, becoming NE 10 to 15 kt. Seas 2 to 3 ft. A chance of showers. .SAT NIGHT...E winds 10 to 15 kt. Seas around 2 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ230-291200- Boston Harbor- 705 PM EDT Mon Sep 28 2026 .TONIGHT...N winds 10 to 15 kt. Gusts up to 20 kt this evening. Waves 2 to 3 ft. Patchy fog. Showers, mainly this evening. Vsby 1 NM or less, increasing to 1 to 3 NM after midnight. .TUE...NW winds 5 to 10 kt. Waves 1 foot or less, except 2 to 4 ft at the outer harbor entrance. Patchy fog in the morning with vsby 1 to 3 NM. .TUE NIGHT...NW winds around 5 kt. Waves 1 foot or less. .WED...NW winds around 5 kt, becoming E in the afternoon. Waves 1 foot or less. .WED NIGHT THROUGH THU NIGHT...SW winds 10 to 15 kt. Waves around 2 ft. .FRI...SW winds 5 to 10 kt. Waves 1 foot or less. .FRI NIGHT...NW winds 5 to 10 kt. Waves 1 foot or less. A chance of showers. .SAT AND SAT NIGHT...N winds 5 to 10 kt, becoming E. Waves 1 foot or less. 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. $$ ANZ236-291200- Narragansett Bay- 705 PM EDT Mon Sep 28 2026 .TONIGHT...N winds 5 to 10 kt. Waves 2 to 3 ft. Patchy fog. A chance of showers this evening. Vsby 1 to 3 NM. .TUE...NW winds 5 to 10 kt. Waves around 2 ft. .TUE NIGHT...N winds around 5 kt. Waves around 2 ft in the evening, then 1 foot or less. .WED...N winds around 5 kt, becoming SW in the afternoon. Waves 1 foot or less. .WED NIGHT THROUGH THU NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Waves 2 to 3 ft. .FRI...SW winds 5 to 10 kt. Waves around 2 ft. .FRI NIGHT...NW winds 5 to 10 kt. Waves around 2 ft. A chance of showers. .SAT AND SAT NIGHT...NE winds 5 to 10 kt. Waves around 2 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ280-291200- Ocean Waters from the Merrimack River to Plymouth from 40 to 60 NM- 705 PM EDT Mon Sep 28 2026 .TONIGHT...E winds 5 to 10 kt. Seas 5 to 7 ft. Wave Detail: N 6 ft at 6 seconds and S 2 ft at 8 seconds. Patchy fog. Showers likely this evening. A chance of showers after midnight. Vsby 1 NM or less. .TUE...NW winds 10 to 15 kt with gusts up to 20 kt. Seas 4 to 5 ft. Wave Detail: E 4 ft at 9 seconds and N 3 ft at 5 seconds. Patchy fog in the morning with vsby 1 NM or less. .TUE NIGHT...N winds 10 to 15 kt, diminishing to 5 to 10 kt after midnight. Seas 4 to 5 ft. Wave Detail: N 3 ft at 5 seconds and E 3 ft at 9 seconds. .WED...N winds 5 to 10 kt, becoming NW in the afternoon. Seas 3 to 4 ft. Wave Detail: N 3 ft at 4 seconds and E 3 ft at 9 seconds. .WED NIGHT THROUGH THU NIGHT...SW winds 10 to 15 kt with gusts up to 25 kt. Seas 3 to 4 ft. Wave Detail: S 4 ft at 4 seconds and E 3 ft at 9 seconds. .FRI...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 4 ft. Wave Detail: SW 3 ft at 5 seconds and E 2 ft at 8 seconds. .FRI NIGHT...NW winds 10 to 15 kt with gusts up to 20 kt. Seas around 3 ft. A chance of showers. .SAT AND SAT NIGHT...N winds 10 to 15 kt with gusts up to 20 kt, becoming NE 5 to 10 kt. Seas 2 to 3 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ281-291200- Ocean Waters from Provincetown to Nantucket from 20 to 60 NM- 705 PM EDT Mon Sep 28 2026 .TONIGHT...S winds around 10 kt, becoming SW after midnight. Seas 6 to 7 ft. Wave Detail: N 5 ft at 6 seconds and S 5 ft at 8 seconds. Patchy fog. A slight chance of showers this evening. Vsby 1 NM or less. .TUE...W winds 10 to 15 kt with gusts up to 20 kt. Seas 5 to 7 ft. Wave Detail: S 4 ft at 7 seconds and E 4 ft at 9 seconds. Patchy fog in the morning with vsby 1 NM or less. .TUE NIGHT...NW winds 5 to 10 kt. Seas 4 to 5 ft. Wave Detail: E 4 ft at 9 seconds and S 3 ft at 7 seconds. .WED...NW winds 5 to 10 kt. Seas 4 to 5 ft. Wave Detail: E 3 ft at 9 seconds and N 2 ft at 5 seconds. .WED NIGHT THROUGH THU NIGHT...SW winds 10 to 15 kt with gusts up to 25 kt. Seas 3 to 4 ft. Wave Detail: SW 4 ft at 5 seconds and E 3 ft at 9 seconds. .FRI...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 4 ft. Wave Detail: W 4 ft at 6 seconds and E 2 ft at 8 seconds. .FRI NIGHT AND SAT...W winds 10 to 15 kt, becoming N. Gusts up to 20 kt. Seas 3 to 4 ft. A chance of showers. .SAT NIGHT...NE winds around 10 kt. Seas 3 to 4 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ282-291200- Ocean Waters from Marthas Vineyard to Nantucket from 25 to 60 NM- 705 PM EDT Mon Sep 28 2026 .TONIGHT...SW winds 10 to 15 kt, becoming W after midnight. Gusts up to 20 kt. Seas 6 to 8 ft. Wave Detail: SW 6 ft at 8 seconds and NE 5 ft at 8 seconds. A slight chance of showers this evening. Patchy fog after midnight. .TUE...W winds 10 to 15 kt. Gusts up to 20 kt in the morning. Seas 4 to 6 ft. Wave Detail: SW 5 ft at 7 seconds and NW 4 ft at 7 seconds. Patchy fog in the morning with vsby 1 to 3 NM. .TUE NIGHT...NW winds 5 to 10 kt. Seas 4 to 5 ft. Wave Detail: SW 3 ft at 6 seconds and E 3 ft at 9 seconds. .WED...N winds around 5 kt. Seas 3 to 4 ft. Wave Detail: E 3 ft at 9 seconds and SW 2 ft at 6 seconds. .WED NIGHT THROUGH THU NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 4 ft. Wave Detail: SW 4 ft at 6 seconds and E 3 ft at 9 seconds. .FRI...SW winds 10 to 15 kt with gusts up to 20 kt. Seas around 4 ft. Wave Detail: W 4 ft at 5 seconds and E 2 ft at 8 seconds. .FRI NIGHT AND SAT...W winds 5 to 10 kt, becoming NE 10 to 15 kt. Seas 3 to 4 ft. A chance of showers. .SAT NIGHT...NE winds 10 to 15 kt. Seas 3 to 4 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ283-291200- Ocean Waters from Montauk NY to Marthas Vineyard from 25 to 60 NM- 705 PM EDT Mon Sep 28 2026 .TONIGHT...W winds 10 to 15 kt with gusts up to 20 kt. Seas 5 to 8 ft. Wave Detail: S 6 ft at 8 seconds and E 4 ft at 9 seconds. Patchy fog. A slight chance of showers this evening. Vsby 1 NM or less. .TUE...W winds 10 to 15 kt. Gusts up to 20 kt in the morning. Seas 4 to 5 ft. Wave Detail: NW 5 ft at 4 seconds and SW 4 ft at 7 seconds. .TUE NIGHT...NW winds 5 to 10 kt. Seas 3 to 4 ft. Wave Detail: E 3 ft at 9 seconds and NW 2 ft at 5 seconds. .WED...N winds around 5 kt. Seas around 3 ft. Wave Detail: E 3 ft at 9 seconds and S 2 ft at 7 seconds. .WED NIGHT THROUGH THU NIGHT...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to 4 ft. Wave Detail: SW 4 ft at 5 seconds and E 3 ft at 9 seconds. .FRI...SW winds around 15 kt with gusts up to 20 kt. Seas around 4 ft. Wave Detail: W 4 ft at 5 seconds and E 2 ft at 8 seconds. .FRI NIGHT AND SAT...W winds 10 to 15 kt, becoming NE with gusts up to 20 kt. Seas 3 to 4 ft. A chance of showers. .SAT NIGHT...E winds around 15 kt with gusts up to 20 kt. Seas around 3 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ For the latest updates...please visit our webpage at www.weather.gov/boston You can follow us on Facebook at www.facebook.com/us.nationalweatherservice.boston.gov You can follow us on Twitter at @NWSBoston