Coastal Waters Forecast
Issued by NWS Boston, MA
Issued by NWS Boston, MA
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593 FZUS51 KBOX 272306 CWFBOX Coastal Waters Forecast for Massachusetts and Rhode Island National Weather Service Boston/Norton MA 705 PM EDT Mon Jul 27 2026 Coastal waters from the Merrimack River MA to Watch Hill RI out to 60 NM ANZ200-281200- 705 PM EDT Mon Jul 27 2026 .Synopsis for Massachusetts and Rhode Island coastal waters... Increasing risk for rough seas towards the middle of next week as low pressure approaches from the W. Best chance for Small Craft Advisory conditions exist for the outer waters later Wednesday. Low pressure will also bring periodic chances for showers and perhaps thunderstorms Tue through mid-week. Rough seas should start to diminish heading into the back half of the week. $$ ANZ250-281200- Coastal waters east of Ipswich Bay and the Stellwagen Bank National Marine Sanctuary- 705 PM EDT Mon Jul 27 2026 ...SMALL CRAFT ADVISORY IN EFFECT FROM LATE TUESDAY NIGHT THROUGH WEDNESDAY EVENING... .TONIGHT...S winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: E 3 ft at 7 seconds and SE 2 ft at 7 seconds. .TUE...S winds 5 to 10 kt, becoming SE 10 to 15 kt with gusts up to 20 kt in the afternoon. Seas 2 to 4 ft. Wave Detail: S 4 ft at 3 seconds and SE 2 ft at 3 seconds. .TUE NIGHT...SE winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. Wave Detail: S 2 ft at 4 seconds and E 2 ft at 7 seconds. Patchy fog. Vsby 1 NM or less. .WED...E winds 15 to 20 kt with gusts up to 30 kt. Seas 3 to 4 ft. Wave Detail: SE 4 ft at 6 seconds and SE 3 ft at 8 seconds. A chance of showers in the morning, then showers in the afternoon. .WED NIGHT...E winds 15 to 20 kt, diminishing to 10 to 15 kt after midnight. Gusts up to 25 kt. Seas 3 to 4 ft. Wave Detail: SE 4 ft at 5 seconds and SE 4 ft at 7 seconds. Showers. .THU...NE winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 4 ft. Wave Detail: SE 3 ft at 5 seconds and SE 3 ft at 7 seconds. Showers likely, mainly in the morning. .THU NIGHT...NE winds 5 to 10 kt. Seas 3 to 4 ft. A chance of showers. .FRI...NE winds 5 to 10 kt. Seas 2 to 4 ft. A chance of showers. .FRI NIGHT THROUGH SAT NIGHT...S winds around 5 kt. Seas 2 to 3 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ251-281200- Massachusetts Bay and Ipswich Bay- 705 PM EDT Mon Jul 27 2026 ...SMALL CRAFT ADVISORY IN EFFECT FROM LATE TUESDAY NIGHT THROUGH WEDNESDAY EVENING... .TONIGHT...S winds 5 to 10 kt. Seas around 2 ft. Wave Detail: E 2 ft at 7 seconds and SE 2 ft at 8 seconds. .TUE...S winds 5 to 10 kt, becoming SE 10 to 15 kt with gusts up to 25 kt in the afternoon. Seas 2 to 3 ft. Wave Detail: SE 3 ft at 6 seconds and SE 3 ft at 8 seconds. .TUE NIGHT...SE winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Wave Detail: SE 3 ft at 4 seconds and E 3 ft at 8 seconds. Patchy fog after midnight. A chance of showers after midnight with vsby 1 NM or less. .WED...E winds 15 to 20 kt with gusts up to 30 kt. Seas 3 to 4 ft. Wave Detail: SE 4 ft at 5 seconds and SE 4 ft at 12 seconds. Showers. .WED NIGHT...E winds 15 to 20 kt, diminishing to 10 to 15 kt after midnight. Gusts up to 25 kt. Seas 2 to 4 ft. Wave Detail: E 4 ft at 6 seconds and S 2 ft at 10 seconds. Showers. .THU AND THU NIGHT...N winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Wave Detail: E 3 ft at 6 seconds and SE 2 ft at 7 seconds. Showers likely. A chance of showers after midnight. .FRI...NE winds 5 to 10 kt. Seas 2 to 3 ft. A chance of showers. .FRI NIGHT THROUGH SAT NIGHT...S winds around 5 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. $$ ANZ231-281200- Cape Cod Bay- 705 PM EDT Mon Jul 27 2026 ...SMALL CRAFT ADVISORY IN EFFECT FROM LATE TUESDAY NIGHT THROUGH WEDNESDAY EVENING... .TONIGHT...S winds around 5 kt. Seas around 2 ft. Wave Detail: E 2 ft at 9 seconds and SE 1 foot at 3 seconds. .TUE...S winds 5 to 10 kt, increasing to 10 to 15 kt with gusts up to 20 kt in the afternoon. Seas 2 to 3 ft. Wave Detail: S 2 ft at 3 seconds and E 1 foot at 6 seconds. .TUE NIGHT...SE winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Wave Detail: E 2 ft at 5 seconds and SE 1 foot at 8 seconds. Patchy fog after midnight with vsby 1 NM or less. .WED...SE winds 15 to 20 kt with gusts up to 25 kt. Seas around 3 ft. Wave Detail: SE 2 ft at 4 seconds and E 2 ft at 7 seconds. Showers. .WED NIGHT...E winds 10 to 15 kt, diminishing to 5 to 10 kt after midnight. Gusts up to 25 kt. Seas 2 to 3 ft. Wave Detail: SE 3 ft at 7 seconds and SE 3 ft at 16 seconds. Showers. .THU...NE winds 5 to 10 kt. Seas around 2 ft. Wave Detail: SE 2 ft at 9 seconds and E 1 foot at 2 seconds. A chance of showers in the morning, then showers likely in the afternoon. .THU NIGHT...NE winds 5 to 10 kt. Seas around 2 ft. A chance of showers. .FRI...N winds 5 to 10 kt. Seas around 2 ft. A chance of showers. .FRI NIGHT THROUGH SAT NIGHT...SW winds around 5 kt. Seas around 2 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ254-281200- Coastal waters from Provincetown MA to Chatham MA to Nantucket MA out 20 NM- 705 PM EDT Mon Jul 27 2026 ...SMALL CRAFT ADVISORY IN EFFECT FROM TUESDAY EVENING THROUGH WEDNESDAY EVENING... .TONIGHT...S winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: SE 2 ft at 7 seconds and E 2 ft at 9 seconds. .TUE...S winds 5 to 10 kt. Gusts up to 20 kt in the afternoon. Seas 2 to 3 ft. Wave Detail: S 2 ft at 3 seconds and E 2 ft at 6 seconds. .TUE NIGHT...SE winds 10 to 15 kt. Gusts up to 20 kt after midnight. Seas 2 to 3 ft. Wave Detail: S 2 ft at 4 seconds and E 2 ft at 7 seconds. Patchy fog. Vsby 1 NM or less. .WED...SE winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to 5 ft. Wave Detail: S 4 ft at 6 seconds and E 4 ft at 6 seconds. A chance of showers in the morning, then showers in the afternoon. .WED NIGHT...SE 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: SE 4 ft at 7 seconds and SE 3 ft at 4 seconds. Showers likely, mainly in the evening. .THU...SE winds around 10 kt. Seas 3 to 5 ft. Wave Detail: SE 4 ft at 9 seconds and E 2 ft at 6 seconds. A chance of showers. .THU NIGHT...SE winds around 10 kt, becoming E after midnight. Seas 3 to 4 ft. A chance of showers. .FRI...NE winds 5 to 10 kt. Seas 3 to 5 ft. A chance of showers. .FRI NIGHT THROUGH SAT NIGHT...SW winds 5 to 10 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. $$ ANZ255-281200- Coastal Waters extending out to 25 NM South of Marthas Vineyard and Nantucket- 705 PM EDT Mon Jul 27 2026 ...SMALL CRAFT ADVISORY IN EFFECT FROM TUESDAY EVENING THROUGH WEDNESDAY EVENING... .TONIGHT...S winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: E 2 ft at 6 seconds and SE 2 ft at 7 seconds. .TUE...S winds 10 to 15 kt. Gusts up to 20 kt in the afternoon. Seas 2 to 3 ft. Wave Detail: S 2 ft at 4 seconds and E 2 ft at 6 seconds. .TUE NIGHT...SE winds 10 to 15 kt, increasing to 15 to 20 kt after midnight. Gusts up to 25 kt. Seas 3 to 4 ft. Wave Detail: SE 3 ft at 6 seconds and E 1 foot at 6 seconds. Patchy fog. A chance of showers after midnight. Vsby 1 to 3 NM. .WED...SE winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to 5 ft. Wave Detail: E 5 ft at 6 seconds and S 5 ft at 7 seconds. Showers. .WED NIGHT...SE winds 15 to 20 kt, diminishing to 10 to 15 kt after midnight. Seas 4 to 5 ft. Wave Detail: S 5 ft at 7 seconds and E 3 ft at 4 seconds. Showers likely, mainly in the evening. .THU...SE winds 10 to 15 kt. Seas 3 to 5 ft. Wave Detail: S 5 ft at 9 seconds and SW 3 ft at 5 seconds. A chance of showers. .THU NIGHT...S winds 10 to 15 kt, becoming E after midnight. Seas 3 to 5 ft. A chance of showers. .FRI...NE winds around 10 kt. Seas 3 to 5 ft. A chance of showers. .FRI NIGHT THROUGH SAT NIGHT...SW winds 5 to 10 kt. Seas 2 to 4 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ256-281200- Coastal Waters from Montauk NY to Marthas Vineyard extending out to 20 NM South of Block Island- 705 PM EDT Mon Jul 27 2026 ...SMALL CRAFT ADVISORY IN EFFECT FROM TUESDAY EVENING THROUGH WEDNESDAY EVENING... .TONIGHT...S winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: S 2 ft at 3 seconds and SE 2 ft at 7 seconds. .TUE...S winds 10 to 15 kt. Gusts up to 20 kt in the afternoon. Seas around 3 ft. Wave Detail: SE 3 ft at 6 seconds and SE 3 ft at 8 seconds. .TUE NIGHT...SE winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to 5 ft. Wave Detail: S 5 ft at 6 seconds and NE 3 ft at 9 seconds. Patchy fog. A chance of showers after midnight. Vsby 1 to 3 NM in the evening. .WED...SE winds 20 to 25 kt, diminishing to 15 to 20 kt in the afternoon. Gusts up to 30 kt. Seas 4 to 6 ft. Wave Detail: SE 6 ft at 6 seconds and W 2 ft at 7 seconds. Showers. .WED NIGHT...SE winds 10 to 15 kt. Gusts up to 20 kt in the evening. Seas 4 to 5 ft. Wave Detail: E 5 ft at 7 seconds and E 3 ft at 6 seconds. A chance of showers. .THU AND THU NIGHT...N winds 10 to 15 kt with gusts up to 20 kt. Seas 4 to 5 ft. Wave Detail: SW 5 ft at 5 seconds and S 5 ft at 9 seconds. A chance of showers. .FRI THROUGH SAT NIGHT...SW winds 5 to 10 kt. Seas 3 to 5 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ232-281200- Nantucket Sound- 705 PM EDT Mon Jul 27 2026 ...SMALL CRAFT ADVISORY IN EFFECT FROM TUESDAY EVENING THROUGH WEDNESDAY EVENING... .TONIGHT...SW winds 5 to 10 kt. Seas around 2 ft. Wave Detail: E 2 ft at 9 seconds and S 1 foot at 3 seconds. .TUE...S winds 10 to 15 kt. Gusts up to 20 kt in the afternoon. Seas around 2 ft. Wave Detail: S 2 ft at 4 seconds and E 1 foot at 7 seconds. .TUE NIGHT...SE winds 10 to 15 kt, increasing to 15 to 20 kt after midnight. Gusts up to 25 kt. Seas 2 to 3 ft. Wave Detail: S 2 ft at 4 seconds and E 1 foot at 7 seconds. Patchy fog. A chance of showers after midnight. Vsby 1 to 3 NM, decreasing to 1 NM or less after midnight. .WED...SE winds around 20 kt with gusts up to 25 kt. Seas 3 to 4 ft. Wave Detail: SE 4 ft at 6 seconds and NE 3 ft at 5 seconds. Showers. .WED NIGHT...SE winds 15 to 20 kt, diminishing to 10 to 15 kt after midnight. Gusts up to 25 kt. Seas 2 to 4 ft. Wave Detail: E 3 ft at 5 seconds and SE 3 ft at 7 seconds. Showers, mainly in the evening. .THU AND THU NIGHT...NE winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Wave Detail: SE 2 ft at 5 seconds and E 2 ft at 9 seconds. A chance of showers. .FRI...NE winds around 10 kt. Seas 2 to 3 ft. A chance of showers. .FRI NIGHT THROUGH SAT NIGHT...SW winds 5 to 10 kt. Seas 2 to 3 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ233-281200- Vineyard Sound- 705 PM EDT Mon Jul 27 2026 ...SMALL CRAFT ADVISORY IN EFFECT FROM TUESDAY EVENING THROUGH WEDNESDAY EVENING... .TONIGHT...S winds 5 to 10 kt. Seas around 2 ft. Wave Detail: E 2 ft at 10 seconds and S 1 foot at 3 seconds. .TUE...S winds 10 to 15 kt. Gusts up to 20 kt in the afternoon. Seas 2 to 3 ft. Wave Detail: SE 2 ft at 5 seconds and S 1 foot at 7 seconds. .TUE NIGHT...SE winds 10 to 15 kt, increasing to 15 to 20 kt after midnight. Gusts up to 25 kt. Seas 2 to 3 ft. Wave Detail: S 3 ft at 7 seconds and SE 2 ft at 3 seconds. A chance of showers after midnight. .WED...SE winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to 4 ft. Wave Detail: S 4 ft at 7 seconds and SE 3 ft at 4 seconds. Showers. .WED NIGHT...SE winds 15 to 20 kt with gusts up to 25 kt, diminishing to 5 to 10 kt after midnight. Seas 2 to 4 ft. Wave Detail: S 4 ft at 7 seconds and E 2 ft at 3 seconds. Showers. .THU...E winds 5 to 10 kt, increasing to 10 to 15 kt in the afternoon. Seas 2 to 3 ft. Wave Detail: SW 3 ft at 9 seconds and SW 2 ft at 5 seconds. Showers likely, mainly in the morning. .THU NIGHT...NE winds 10 to 15 kt, diminishing to 5 to 10 kt after midnight. Seas 2 to 3 ft. A chance of showers. .FRI...NE winds around 10 kt. Seas 2 to 3 ft. A chance of showers. .FRI NIGHT THROUGH SAT NIGHT...SW 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. $$ ANZ234-281200- Buzzards Bay- 705 PM EDT Mon Jul 27 2026 ...SMALL CRAFT ADVISORY IN EFFECT FROM TUESDAY EVENING THROUGH WEDNESDAY EVENING... .TONIGHT...S winds 5 to 10 kt. Seas 1 foot or less. Wave Detail: S 1 foot at 3 seconds and E 1 foot at 6 seconds. .TUE...S winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Wave Detail: SE 2 ft at 5 seconds and E 2 ft at 11 seconds. .TUE NIGHT...SE winds 10 to 15 kt, increasing to 15 to 20 kt after midnight. Gusts up to 25 kt. Seas 2 to 3 ft. Wave Detail: SE 3 ft at 8 seconds and S 2 ft at 4 seconds. A chance of showers after midnight. .WED...SE winds 15 to 20 kt with gusts up to 30 kt. Seas around 3 ft. Wave Detail: SE 3 ft at 3 seconds and SE 3 ft at 7 seconds. Showers. .WED NIGHT...SE winds 15 to 20 kt with gusts up to 25 kt, diminishing to 5 to 10 kt after midnight. Seas 2 to 3 ft. Wave Detail: E 3 ft at 6 seconds and S 3 ft at 14 seconds. Showers. .THU...E winds 5 to 10 kt, increasing to 10 to 15 kt with gusts up to 20 kt in the afternoon. Seas around 2 ft. Wave Detail: E 2 ft at 6 seconds and SE 2 ft at 10 seconds. Showers likely, mainly in the morning. .THU NIGHT...NE winds 10 to 15 kt, diminishing to 5 to 10 kt after midnight. Seas around 2 ft. A chance of showers. .FRI...NE winds around 10 kt. Seas around 2 ft. A chance of showers. .FRI NIGHT THROUGH SAT NIGHT...SW winds 5 to 10 kt. Seas around 2 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ235-281200- Rhode Island Sound- 705 PM EDT Mon Jul 27 2026 ...SMALL CRAFT ADVISORY IN EFFECT FROM TUESDAY EVENING THROUGH WEDNESDAY EVENING... .TONIGHT...S winds around 10 kt. Seas around 2 ft. Wave Detail: SW 2 ft at 3 seconds and SE 2 ft at 7 seconds. .TUE...S winds 10 to 15 kt. Gusts up to 20 kt in the afternoon. Seas 2 to 3 ft. Wave Detail: S 3 ft at 4 seconds and SE 3 ft at 7 seconds. .TUE NIGHT...SE winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 4 ft. Wave Detail: S 4 ft at 6 seconds and E 1 foot at 7 seconds. Patchy fog in the evening. A chance of showers after midnight. Vsby 1 NM or less in the evening. .WED...SE winds 20 to 25 kt. Seas 3 to 5 ft. Wave Detail: E 5 ft at 5 seconds and S 5 ft at 7 seconds. Showers. .WED NIGHT...SE winds 15 to 20 kt, becoming E 10 to 15 kt after midnight. Seas 3 to 5 ft. Wave Detail: SE 5 ft at 7 seconds and SE 3 ft at 11 seconds. Showers likely. .THU...E winds 10 to 15 kt. Gusts up to 20 kt in the afternoon. Seas 3 to 4 ft. Wave Detail: NE 4 ft at 6 seconds and E 4 ft at 9 seconds. Showers likely, mainly in the morning. .THU NIGHT...NE winds 10 to 15 kt. Gusts up to 20 kt in the evening. Seas 3 to 4 ft. A chance of showers. .FRI...NE winds around 10 kt. Seas 3 to 4 ft. A chance of showers. .FRI NIGHT THROUGH SAT NIGHT...SW 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. $$ ANZ237-281200- Block Island Sound- 705 PM EDT Mon Jul 27 2026 ...SMALL CRAFT ADVISORY IN EFFECT FROM TUESDAY EVENING THROUGH WEDNESDAY EVENING... .TONIGHT...S winds 5 to 10 kt. Seas around 2 ft. Wave Detail: S 2 ft at 3 seconds and SE 2 ft at 7 seconds. .TUE...S winds 10 to 15 kt. Gusts up to 20 kt in the afternoon. Seas 2 to 3 ft. Wave Detail: S 3 ft at 6 seconds and E 3 ft at 8 seconds. .TUE NIGHT...SE winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 4 ft. Wave Detail: E 4 ft at 7 seconds and S 3 ft at 6 seconds. Patchy fog. A chance of showers. Vsby 1 to 3 NM in the evening. .WED...SE winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to 5 ft. Wave Detail: SE 4 ft at 6 seconds and SW 2 ft at 6 seconds. Showers. .WED NIGHT...E winds 10 to 15 kt with gusts up to 20 kt, diminishing to 5 to 10 kt after midnight. Seas 3 to 5 ft. Wave Detail: SE 4 ft at 6 seconds and E 2 ft at 9 seconds. Showers likely. .THU AND THU NIGHT...N winds 10 to 15 kt. Seas 2 to 4 ft. Wave Detail: S 4 ft at 7 seconds and NE 2 ft at 3 seconds. A chance of showers. A chance of tstms through the night. .FRI...NE winds around 10 kt. Seas 2 to 4 ft. A chance of showers. .FRI NIGHT THROUGH SAT NIGHT...SW winds 5 to 10 kt. Seas 2 to 3 ft. Winds and seas higher in and near tstms. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ230-281200- Boston Harbor- 705 PM EDT Mon Jul 27 2026 ...SMALL CRAFT ADVISORY IN EFFECT FROM LATE TUESDAY NIGHT THROUGH WEDNESDAY EVENING... .TONIGHT...S winds 5 to 10 kt. Waves 1 foot or less. .TUE...S winds 5 to 10 kt, becoming SE 10 to 15 kt with gusts up to 20 kt in the afternoon. Waves 1 foot or less, then 2 to 3 ft in the afternoon. .TUE NIGHT...SE winds 10 to 15 kt with gusts up to 20 kt. Waves around 2 ft. A chance of showers after midnight. .WED...E winds 15 to 20 kt with gusts up to 25 kt. Waves 2 to 3 ft. Showers. .WED NIGHT...E winds 15 to 20 kt, diminishing to 10 to 15 kt after midnight. Gusts up to 25 kt. Waves 2 to 3 ft. Showers. .THU AND THU NIGHT...N winds 10 to 15 kt with gusts up to 20 kt. Waves 2 to 3 ft. Showers. A chance of tstms. A chance of showers after midnight. .FRI...NE winds 5 to 10 kt. Waves 1 foot or less. A chance of showers and tstms. .FRI NIGHT...N winds around 5 kt. Waves 1 foot or less. A chance of showers. .SAT AND SAT NIGHT...NE winds around 5 kt, becoming S. Waves 1 foot or less. 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. $$ ANZ236-281200- Narragansett Bay- 705 PM EDT Mon Jul 27 2026 ...SMALL CRAFT ADVISORY IN EFFECT FROM TUESDAY EVENING THROUGH WEDNESDAY EVENING... .TONIGHT...S winds 5 to 10 kt. Waves around 2 ft. .TUE...S winds 10 to 15 kt. Gusts up to 20 kt in the afternoon. Waves 2 to 3 ft. A chance of showers in the morning. .TUE NIGHT...SE winds 10 to 15 kt, increasing to 15 to 20 kt after midnight. Gusts up to 25 kt. Waves 2 to 3 ft. A chance of showers. Patchy fog in the evening with vsby 1 to 3 NM. .WED...SE winds 15 to 20 kt with gusts up to 25 kt. Waves 2 to 4 ft. Showers. .WED NIGHT...E winds 10 to 15 kt with gusts up to 20 kt, diminishing to 5 to 10 kt after midnight. Waves 2 to 3 ft. Showers. .THU AND THU NIGHT...N winds 5 to 10 kt. Waves 2 to 3 ft. Showers likely. A chance of tstms through the night, then a chance of showers after midnight. .FRI AND FRI NIGHT...N winds 5 to 10 kt. Waves 2 to 3 ft. A chance of showers. .SAT AND SAT NIGHT...NW winds 5 to 10 kt, becoming SW. Waves around 2 ft. Winds and waves higher in and near tstms. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ280-281200- Ocean Waters from the Merrimack River to Plymouth from 40 to 60 NM- 705 PM EDT Mon Jul 27 2026 .TONIGHT...S winds 5 to 10 kt. Seas around 3 ft. Wave Detail: E 3 ft at 7 seconds and SE 2 ft at 8 seconds. .TUE...S winds 5 to 10 kt, becoming SE 10 to 15 kt with gusts up to 20 kt in the afternoon. Seas around 3 ft. Wave Detail: SE 3 ft at 9 seconds and S 2 ft at 3 seconds. .TUE NIGHT...SE winds 10 to 15 kt with gusts up to 20 kt. Seas around 3 ft. Wave Detail: S 2 ft at 4 seconds and E 2 ft at 7 seconds. Patchy fog. Vsby 1 NM or less. .WED...E winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to 5 ft. Wave Detail: SE 5 ft at 6 seconds and S 3 ft at 8 seconds. A chance of showers. .WED NIGHT...E winds 15 to 20 kt with gusts up to 25 kt. Seas 4 to 5 ft. Wave Detail: SE 5 ft at 6 seconds and SE 2 ft at 11 seconds. Showers. .THU...E winds 10 to 15 kt with gusts up to 20 kt. Seas 4 to 5 ft. Wave Detail: SE 4 ft at 10 seconds and E 3 ft at 6 seconds. A chance of showers. .THU NIGHT...E winds around 10 kt. Seas 4 to 5 ft. A chance of showers. .FRI...NE winds 5 to 10 kt. Seas 4 to 5 ft. A chance of showers. .FRI NIGHT THROUGH SAT NIGHT...SW winds 5 to 10 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. $$ ANZ281-281200- Ocean Waters from Provincetown to Nantucket from 20 to 60 NM- 705 PM EDT Mon Jul 27 2026 .TONIGHT...SW winds 5 to 10 kt. Seas around 3 ft. Wave Detail: E 3 ft at 7 seconds and E 2 ft at 10 seconds. .TUE...S winds 5 to 10 kt. Seas around 3 ft. Wave Detail: SE 3 ft at 9 seconds and SE 2 ft at 2 seconds. .TUE NIGHT...SE winds 10 to 15 kt. Gusts up to 20 kt after midnight. Seas around 3 ft. Wave Detail: S 2 ft at 4 seconds and E 2 ft at 7 seconds. Patchy fog. Vsby 1 NM or less. .WED...SE winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to 5 ft. Wave Detail: S 5 ft at 6 seconds and E 4 ft at 6 seconds. A chance of showers in the morning, then showers likely in the afternoon. .WED NIGHT...SE winds 15 to 20 kt, diminishing to 10 to 15 kt after midnight. Gusts up to 25 kt. Seas 5 to 6 ft. Wave Detail: S 5 ft at 6 seconds and E 4 ft at 6 seconds. Showers likely, mainly in the evening. .THU AND THU NIGHT...SE winds around 10 kt with gusts up to 20 kt. Seas 4 to 6 ft. Wave Detail: SE 5 ft at 10 seconds and SE 2 ft at 3 seconds. A chance of showers in the morning. A chance of showers through the night. .FRI...NE winds around 10 kt. Seas 4 to 5 ft. A chance of showers. .FRI NIGHT THROUGH SAT NIGHT...SW winds 5 to 10 kt. Seas 3 to 4 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ282-281200- Ocean Waters from Marthas Vineyard to Nantucket from 25 to 60 NM- 705 PM EDT Mon Jul 27 2026 .TONIGHT...SW winds around 5 kt, increasing to 5 to 10 kt after midnight. Seas around 3 ft. Wave Detail: SE 3 ft at 8 seconds and E 2 ft at 6 seconds. .TUE...SE winds 5 to 10 kt. Seas around 3 ft. Wave Detail: SE 3 ft at 8 seconds and S 2 ft at 4 seconds. .TUE NIGHT...SE winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 4 ft. Wave Detail: S 4 ft at 5 seconds and SE 4 ft at 8 seconds. .WED...SE winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to 5 ft, building to 5 to 6 ft in the afternoon. Wave Detail: S 5 ft at 7 seconds and NE 1 foot at 6 seconds, becoming E 6 ft at 6 seconds and W 3 ft at 8 seconds. Showers. .WED NIGHT...SE winds 10 to 15 kt. Gusts up to 20 kt in the evening. Seas 5 to 6 ft. Wave Detail: S 6 ft at 9 seconds and E 3 ft at 6 seconds. Showers likely, mainly in the evening. .THU...S winds around 10 kt. Seas 5 to 6 ft. Wave Detail: S 5 ft at 9 seconds and SW 4 ft at 4 seconds. .THU NIGHT...S winds around 10 kt. Seas around 5 ft. A chance of showers. .FRI THROUGH SAT NIGHT...SW winds 5 to 10 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. $$ ANZ283-281200- Ocean Waters from Montauk NY to Marthas Vineyard from 25 to 60 NM- 705 PM EDT Mon Jul 27 2026 .TONIGHT...S winds 5 to 10 kt. Seas around 3 ft. Wave Detail: E 3 ft at 8 seconds and SW 2 ft at 4 seconds. .TUE...S winds 10 to 15 kt. Gusts up to 20 kt in the afternoon. Seas 3 to 4 ft. Wave Detail: S 3 ft at 5 seconds and SE 3 ft at 8 seconds. .TUE NIGHT...SE winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to 5 ft. Wave Detail: SE 5 ft at 8 seconds and SE 4 ft at 6 seconds. Patchy fog. A chance of showers after midnight. .WED...SE winds 15 to 20 kt with gusts up to 30 kt. Seas 4 to 6 ft. Wave Detail: E 6 ft at 6 seconds and W 3 ft at 8 seconds. Showers. .WED NIGHT...SE winds 10 to 15 kt. Gusts up to 20 kt in the evening. Seas 5 to 6 ft. Wave Detail: S 5 ft at 8 seconds and E 3 ft at 7 seconds. A chance of showers. .THU...S winds around 10 kt, becoming SW with gusts up to 20 kt in the afternoon. Seas 4 to 5 ft. Wave Detail: S 5 ft at 9 seconds and SE 4 ft at 4 seconds. A chance of showers in the morning. .THU NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt, becoming NW after midnight. Seas around 5 ft. A chance of showers. .FRI THROUGH SAT NIGHT...SW winds 5 to 10 kt. Seas 3 to 5 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ 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