Coastal Waters Forecast
Issued by NWS Boston, MA
Issued by NWS Boston, MA
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005 FZUS51 KBOX 240204 CWFBOX Coastal Waters Forecast for Massachusetts and Rhode Island National Weather Service Boston/Norton MA 1004 PM EDT Thu Jul 23 2026 Coastal waters from the Merrimack River MA to Watch Hill RI out to 60 NM ANZ200-241500- 1004 PM EDT Thu Jul 23 2026 .Synopsis for Massachusetts and Rhode Island coastal waters... High pres builds across the waters into the weekend, bringing more pleasant boating weather to the region through the weekend with light winds and seas less than 3 ft. Increasing chance for rough seas early next week as low pressure approaches from the west. $$ ANZ250-241500- Coastal waters east of Ipswich Bay and the Stellwagen Bank National Marine Sanctuary- 1004 PM EDT Thu Jul 23 2026 .OVERNIGHT...SW winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: SE 3 ft at 8 seconds and SW 1 foot at 3 seconds. .FRI...SW winds around 5 kt, becoming SE in the afternoon. Seas 2 to 3 ft. Wave Detail: SE 2 ft at 8 seconds and SW 1 foot at 3 seconds. .FRI NIGHT...S winds 5 to 10 kt. Seas around 2 ft. Wave Detail: SE 2 ft at 7 seconds and S 1 foot at 3 seconds. .SAT...E winds 5 to 10 kt. Seas around 2 ft. Wave Detail: SE 2 ft at 8 seconds and S 1 foot at 3 seconds. .SAT NIGHT THROUGH SUN NIGHT...NE winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: SE 3 ft at 7 seconds. .MON AND MON NIGHT...E winds 5 to 10 kt, becoming S. Seas 2 to 3 ft. Wave Detail: SE 3 ft at 8 seconds. .TUE AND TUE NIGHT...S winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. A chance of showers. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ251-241500- Massachusetts Bay and Ipswich Bay- 1004 PM EDT Thu Jul 23 2026 .OVERNIGHT...SW winds 5 to 10 kt. Seas around 2 ft. Wave Detail: SE 2 ft at 7 seconds and S 1 foot at 3 seconds. .FRI...SW winds around 5 kt, becoming SE in the afternoon. Seas around 2 ft. Wave Detail: E 2 ft at 7 seconds and SE 2 ft at 10 seconds. .FRI NIGHT...S winds 5 to 10 kt. Seas around 2 ft. Wave Detail: SE 2 ft at 5 seconds and SE 2 ft at 8 seconds. .SAT...E winds 5 to 10 kt. Seas around 2 ft. Wave Detail: E 2 ft at 7 seconds and SE 2 ft at 10 seconds. .SAT NIGHT AND SUN...E winds 5 to 10 kt. Seas around 2 ft. Wave Detail: SE 2 ft at 7 seconds. .SUN NIGHT...E winds 5 to 10 kt, becoming NW after midnight. Seas around 2 ft. Wave Detail: E 2 ft at 8 seconds and SE 2 ft at 8 seconds. .MON AND MON NIGHT...E winds 10 to 15 kt, becoming S. Seas around 2 ft. .TUE AND TUE NIGHT...S winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. A chance of showers. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ231-241500- Cape Cod Bay- 1004 PM EDT Thu Jul 23 2026 .OVERNIGHT...SW winds 5 to 10 kt. Seas around 2 ft. Wave Detail: E 2 ft at 10 seconds and S 1 foot at 3 seconds. .FRI...SW winds around 5 kt, becoming SE in the afternoon. Seas 1 foot or less. Wave Detail: SW 1 foot at 3 seconds and E 1 foot at 8 seconds. .FRI NIGHT...S winds 5 to 10 kt, becoming SE after midnight. Seas 1 foot or less. Wave Detail: SE 1 foot at 3 seconds and SE 1 foot at 9 seconds. .SAT...E winds 5 to 10 kt. Gusts up to 20 kt in the afternoon. Seas around 2 ft. Wave Detail: SE 2 ft at 9 seconds and E 1 foot at 4 seconds. .SAT NIGHT THROUGH SUN NIGHT...NE winds 5 to 10 kt. Seas around 2 ft. Wave Detail: S 2 ft at 7 seconds and E 1 foot at 2 seconds. .MON AND MON NIGHT...E winds 5 to 10 kt, becoming S. Seas around 2 ft. Wave Detail: E 2 ft at 7 seconds and SW 1 foot at 2 seconds. .TUE AND TUE NIGHT...S winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. A chance of showers. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ254-241500- Coastal waters from Provincetown MA to Chatham MA to Nantucket MA out 20 NM- 1004 PM EDT Thu Jul 23 2026 .OVERNIGHT...S winds 5 to 10 kt, becoming SW. Seas 2 to 4 ft. Wave Detail: S 4 ft at 8 seconds and E 2 ft at 7 seconds. .FRI...NW winds around 5 kt, becoming SE in the afternoon. Seas 2 to 4 ft. Wave Detail: S 3 ft at 8 seconds and E 2 ft at 7 seconds. .FRI NIGHT...E winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: S 2 ft at 7 seconds. .SAT...E winds 5 to 10 kt with gusts up to 20 kt. Seas 2 to 4 ft. Wave Detail: S 3 ft at 7 seconds. .SAT NIGHT THROUGH SUN NIGHT...NE winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. Wave Detail: SE 3 ft at 7 seconds and SW 2 ft at 8 seconds. .MON AND MON NIGHT...NE winds 5 to 10 kt, becoming S. Seas 2 to 3 ft. Wave Detail: S 3 ft at 7 seconds and SE 1 foot at 12 seconds. .TUE AND TUE NIGHT...S winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. A chance of showers. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ255-241500- Coastal Waters extending out to 25 NM South of Marthas Vineyard and Nantucket- 1004 PM EDT Thu Jul 23 2026 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 11 PM EDT THIS EVENING... .OVERNIGHT...S winds around 5 kt, becoming SW around 5 kt. Seas 3 to 4 ft. Wave Detail: S 4 ft at 8 seconds and SW 1 foot at 3 seconds. .FRI...NE winds around 5 kt, becoming E in the afternoon. Seas 2 to 4 ft. Wave Detail: SE 4 ft at 7 seconds and W 4 ft at 7 seconds. .FRI NIGHT...E winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: S 3 ft at 7 seconds. .SAT...NE winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 4 ft. Wave Detail: SE 4 ft at 7 seconds. .SAT NIGHT THROUGH SUN NIGHT...NE winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. Wave Detail: SE 3 ft at 7 seconds and SW 2 ft at 8 seconds. .MON...NE winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: S 3 ft at 7 seconds and E 1 foot at 12 seconds. .MON NIGHT AND TUE...S winds 5 to 10 kt, increasing to 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. A chance of showers. .TUE NIGHT...S winds 15 to 20 kt. Seas 3 to 5 ft. A chance of showers. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ256-241500- Coastal Waters from Montauk NY to Marthas Vineyard extending out to 20 NM South of Block Island- 1004 PM EDT Thu Jul 23 2026 .OVERNIGHT...S winds around 5 kt. Seas 3 to 4 ft. Wave Detail: S 4 ft at 8 seconds and W 2 ft at 8 seconds. .FRI...N winds around 5 kt, becoming SE around 5 kt in the afternoon. Seas 2 to 4 ft. Wave Detail: SE 4 ft at 7 seconds and SW 3 ft at 8 seconds. .FRI NIGHT...E winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: SE 3 ft at 7 seconds. .SAT...NE winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 4 ft. Wave Detail: SE 4 ft at 7 seconds and SW 1 foot at 9 seconds. .SAT NIGHT THROUGH SUN NIGHT...NE winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Wave Detail: SE 3 ft at 8 seconds and S 1 foot at 7 seconds. .MON...E winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: S 3 ft at 7 seconds. .MON NIGHT AND TUE...S winds 10 to 15 kt, increasing to 15 to 20 kt with gusts up to 25 kt. Seas 2 to 4 ft. A chance of showers. .TUE NIGHT...S winds 15 to 20 kt with gusts up to 25 kt. Seas 4 to 5 ft. A chance of showers. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ232-241500- Nantucket Sound- 1004 PM EDT Thu Jul 23 2026 .OVERNIGHT...SW winds around 5 kt. Seas 2 to 3 ft. Wave Detail: SE 2 ft at 8 seconds and SW 1 foot at 5 seconds. .FRI...NW winds around 5 kt, becoming SE in the afternoon. Seas around 2 ft. Wave Detail: SE 2 ft at 7 seconds. .FRI NIGHT...E winds 5 to 10 kt. Seas around 2 ft. Wave Detail: S 2 ft at 7 seconds and E 1 foot at 4 seconds. .SAT...E winds 10 to 15 kt with gusts up to 25 kt. Seas around 2 ft. Wave Detail: S 2 ft at 7 seconds. .SAT NIGHT THROUGH SUN NIGHT...NE winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft. Wave Detail: E 2 ft at 4 seconds and S 2 ft at 7 seconds. .MON...E winds 5 to 10 kt. Seas around 2 ft. Wave Detail: SE 2 ft at 7 seconds and SW 1 foot at 7 seconds. .MON NIGHT THROUGH TUE NIGHT...S winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 3 ft. A chance of showers. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ233-241500- Vineyard Sound- 1004 PM EDT Thu Jul 23 2026 .OVERNIGHT...SW winds around 5 kt. Seas 2 to 3 ft. Wave Detail: S 3 ft at 8 seconds and SW 2 ft at 9 seconds. .FRI...SW winds around 5 kt, becoming S in the afternoon. Seas around 2 ft. Wave Detail: SE 2 ft at 7 seconds and SW 2 ft at 8 seconds. .FRI NIGHT...SE winds 5 to 10 kt, becoming E after midnight. Seas around 2 ft. Wave Detail: SE 2 ft at 9 seconds and E 1 foot at 3 seconds. .SAT...E winds 5 to 10 kt with gusts up to 20 kt. Seas around 2 ft. Wave Detail: S 2 ft at 7 seconds and E 1 foot at 3 seconds. .SAT NIGHT THROUGH SUN NIGHT...NE winds 5 to 10 kt with gusts up to 20 kt. Seas around 2 ft. Wave Detail: NE 1 foot at 3 seconds and S 1 foot at 7 seconds. .MON...SE winds 5 to 10 kt. Seas around 2 ft. Wave Detail: NE 2 ft at 3 seconds and S 1 foot at 7 seconds. .MON NIGHT AND TUE...S winds 10 to 15 kt. Gusts up to 20 kt. Seas 2 to 3 ft. A chance of showers. .TUE NIGHT...S winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. Showers likely. 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. $$ ANZ234-241500- Buzzards Bay- 1004 PM EDT Thu Jul 23 2026 .OVERNIGHT...SW winds around 5 kt. Seas around 2 ft. Wave Detail: S 2 ft at 7 seconds. .FRI...SW winds around 5 kt, becoming S in the afternoon. Seas around 2 ft. Wave Detail: SE 2 ft at 7 seconds. .FRI NIGHT...SE winds 5 to 10 kt, becoming E after midnight. Seas around 2 ft in the evening, then 1 foot or less. Wave Detail: S 2 ft at 7 seconds and E 1 foot at 2 seconds, becoming E 1 foot at 2 seconds and S 1 foot at 7 seconds. .SAT...E winds 5 to 10 kt. Seas around 2 ft. Wave Detail: E 1 foot at 2 seconds and S 1 foot at 7 seconds. .SAT NIGHT AND SUN...NE winds 5 to 10 kt. Seas around 2 ft. Wave Detail: E 1 foot at 2 seconds and S 1 foot at 7 seconds. .SUN NIGHT...E winds 5 to 10 kt, becoming N after midnight. Seas around 2 ft in the evening, then 1 foot or less. Wave Detail: NE 1 foot at 2 seconds and S 1 foot at 7 seconds, becoming E 1 foot at 2 seconds and SW 1 foot at 7 seconds. .MON...SE winds 5 to 10 kt. Seas around 2 ft. .MON NIGHT...S winds around 10 kt. Seas around 2 ft. A chance of showers. .TUE...S winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 4 ft. A chance of showers. .TUE NIGHT...S winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. Showers likely. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ235-241500- Rhode Island Sound- 1004 PM EDT Thu Jul 23 2026 .OVERNIGHT...S winds around 5 kt. Seas 2 to 4 ft. Wave Detail: S 4 ft at 8 seconds and E 2 ft at 7 seconds. .FRI...SW winds around 5 kt, becoming S around 5 kt in the afternoon. Seas 2 to 3 ft. Wave Detail: S 3 ft at 7 seconds. .FRI NIGHT...SE winds 5 to 10 kt, becoming E after midnight. Seas around 2 ft. Wave Detail: S 2 ft at 7 seconds. .SAT...NE winds 5 to 10 kt, becoming E 10 to 15 kt with gusts up to 20 kt in the afternoon. Seas 2 to 3 ft. Wave Detail: SE 3 ft at 7 seconds and SW 1 foot at 8 seconds. .SAT NIGHT THROUGH SUN NIGHT...NE winds 5 to 10 kt with gusts up to 20 kt. Seas 2 to 3 ft. Wave Detail: S 3 ft at 7 seconds. .MON...SE winds 5 to 10 kt. Seas around 2 ft. Wave Detail: S 2 ft at 7 seconds. .MON NIGHT AND TUE...S winds 10 to 15 kt, increasing to 15 to 20 kt. Seas 2 to 4 ft. A chance of showers. .TUE NIGHT...S winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 4 ft. Showers likely. 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. $$ ANZ237-241500- Block Island Sound- 1004 PM EDT Thu Jul 23 2026 .OVERNIGHT...SW winds around 5 kt. Seas 2 to 3 ft. Wave Detail: S 3 ft at 8 seconds and E 1 foot at 8 seconds. .FRI...N winds around 5 kt, becoming SE around 5 kt in the afternoon. Seas 2 to 3 ft. Wave Detail: S 3 ft at 7 seconds and E 1 foot at 8 seconds. .FRI NIGHT...SE winds 5 to 10 kt, becoming NE after midnight. Seas around 2 ft. Wave Detail: S 2 ft at 7 seconds. .SAT...E winds 5 to 10 kt. Gusts up to 20 kt in the afternoon. Seas 2 to 3 ft. Wave Detail: E 3 ft at 7 seconds and SE 3 ft at 8 seconds. .SAT NIGHT THROUGH SUN NIGHT...NE winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: S 3 ft at 7 seconds. .MON...SE winds 5 to 10 kt. Seas around 2 ft. Wave Detail: S 2 ft at 7 seconds. .MON NIGHT AND TUE...S winds 10 to 15 kt. Gusts up to 20 kt. Seas 2 to 3 ft. A chance of showers. .TUE NIGHT...S winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. Showers likely. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ230-241500- Boston Harbor- 1004 PM EDT Thu Jul 23 2026 .OVERNIGHT...SW winds around 5 kt. Waves 1 foot or less. .FRI...W winds around 5 kt, becoming SE in the afternoon. Waves 1 foot or less. .FRI NIGHT...S winds 5 to 10 kt, becoming SW after midnight. Waves around 2 ft in the evening, then 1 foot or less. .SAT...E winds 5 to 10 kt. Waves 1 foot or less, then around 2 ft in the afternoon. .SAT NIGHT AND SUN...E winds 5 to 10 kt. Waves around 2 ft. .SUN NIGHT...E winds 5 to 10 kt, becoming W after midnight. Waves 1 foot or less. .MON...E winds 5 to 10 kt. Waves around 2 ft. .MON NIGHT...S winds 5 to 10 kt. Waves around 2 ft. A chance of showers. .TUE AND TUE NIGHT...S winds 10 to 15 kt. Gusts up to 20 kt. Waves around 2 ft. Showers likely. 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. $$ ANZ236-241500- Narragansett Bay- 1004 PM EDT Thu Jul 23 2026 .OVERNIGHT...SW winds around 5 kt. Waves around 2 ft. .FRI...W winds around 5 kt, becoming S in the afternoon. Waves around 2 ft. .FRI NIGHT...S winds 5 to 10 kt, becoming NE after midnight. Waves around 2 ft. .SAT...NE winds 5 to 10 kt, becoming E in the afternoon. Waves around 2 ft. .SAT NIGHT...E winds 5 to 10 kt, becoming NE after midnight. Waves around 2 ft. .SUN AND SUN NIGHT...N winds 5 to 10 kt. Waves around 2 ft. .MON...SE winds 5 to 10 kt. Waves around 2 ft. .MON NIGHT...S winds 5 to 10 kt. Waves around 2 ft. A chance of showers. .TUE AND TUE NIGHT...S winds 10 to 15 kt with gusts up to 20 kt. Waves 2 to 3 ft. Showers likely. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ280-241500- Ocean Waters from the Merrimack River to Plymouth from 40 to 60 NM- 1004 PM EDT Thu Jul 23 2026 .OVERNIGHT...SW winds 5 to 10 kt. Seas 3 to 4 ft. Wave Detail: S 4 ft at 8 seconds and SE 2 ft at 7 seconds. .FRI...SW winds 5 to 10 kt. Seas 2 to 4 ft. Wave Detail: S 4 ft at 8 seconds and SE 2 ft at 7 seconds. .FRI NIGHT...S winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: S 2 ft at 4 seconds and SE 2 ft at 7 seconds. .SAT...E winds around 5 kt. Seas 2 to 3 ft. Wave Detail: S 3 ft at 7 seconds. .SAT NIGHT THROUGH SUN NIGHT...NE winds 5 to 10 kt. Seas 2 to 4 ft. Wave Detail: S 3 ft at 7 seconds. .MON AND MON NIGHT...E winds 5 to 10 kt, becoming S. Seas 2 to 3 ft. Wave Detail: S 3 ft at 7 seconds and SE 1 foot at 11 seconds. .TUE AND TUE NIGHT...S winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 4 ft. A chance of showers. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ281-241500- Ocean Waters from Provincetown to Nantucket from 20 to 60 NM- 1004 PM EDT Thu Jul 23 2026 .OVERNIGHT...S winds around 5 kt, becoming W around 5 kt. Seas 4 to 5 ft. Wave Detail: S 5 ft at 8 seconds and NW 3 ft at 4 seconds. .FRI...NE winds around 5 kt, becoming E in the afternoon. Seas 3 to 4 ft. Wave Detail: S 4 ft at 7 seconds. .FRI NIGHT...E winds 5 to 10 kt. Seas 3 to 4 ft. Wave Detail: SE 3 ft at 8 seconds and S 2 ft at 7 seconds. .SAT...E winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 5 ft. Wave Detail: S 4 ft at 7 seconds. .SAT NIGHT THROUGH SUN NIGHT...NE winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 5 ft. Wave Detail: S 4 ft at 7 seconds. .MON AND MON NIGHT...NE winds 5 to 10 kt, becoming S. Seas around 3 ft. Wave Detail: S 3 ft at 7 seconds. .TUE AND TUE NIGHT...S winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 5 ft. A chance of showers. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ282-241500- Ocean Waters from Marthas Vineyard to Nantucket from 25 to 60 NM- 1004 PM EDT Thu Jul 23 2026 .OVERNIGHT...E winds around 5 kt, becoming NE. Seas 4 to 5 ft. Wave Detail: S 5 ft at 8 seconds and N 4 ft at 9 seconds. .FRI...NE winds 5 to 10 kt, increasing to 10 to 15 kt in the afternoon. Seas 3 to 4 ft. Wave Detail: S 4 ft at 8 seconds and E 2 ft at 7 seconds. .FRI NIGHT...E winds 10 to 15 kt. Gusts up to 20 kt after midnight. Seas 3 to 5 ft. Wave Detail: S 4 ft at 7 seconds. .SAT...NE winds 10 to 15 kt with gusts up to 25 kt. Seas 3 to 5 ft. Wave Detail: SE 5 ft at 7 seconds. .SAT NIGHT THROUGH SUN NIGHT...NE winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 5 ft. Wave Detail: E 4 ft at 7 seconds and SE 3 ft at 8 seconds. .MON AND MON NIGHT...NE winds 5 to 10 kt, becoming S. Seas 3 to 4 ft. Wave Detail: S 4 ft at 7 seconds. .TUE AND TUE NIGHT...S winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 5 ft. A chance of showers. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ283-241500- Ocean Waters from Montauk NY to Marthas Vineyard from 25 to 60 NM- 1004 PM EDT Thu Jul 23 2026 .OVERNIGHT...E winds around 5 kt. Seas 4 to 5 ft. Wave Detail: S 5 ft at 8 seconds and N 3 ft at 12 seconds. .FRI...NE winds 5 to 10 kt, becoming E 10 to 15 kt in the afternoon. Seas 3 to 4 ft. Wave Detail: S 4 ft at 8 seconds and E 3 ft at 7 seconds. .FRI NIGHT...E winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 4 ft. Wave Detail: S 4 ft at 7 seconds. .SAT...NE winds 10 to 15 kt with gusts up to 25 kt. Seas 3 to 5 ft. Wave Detail: SE 5 ft at 7 seconds and SW 2 ft at 9 seconds. .SAT NIGHT THROUGH SUN NIGHT...NE winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 5 ft. Wave Detail: SE 5 ft at 7 seconds. .MON...NE winds 5 to 10 kt. Seas around 3 ft. Wave Detail: S 3 ft at 7 seconds. .MON NIGHT THROUGH TUE NIGHT...S winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to 5 ft. A chance of showers. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ 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