Coastal Waters Forecast
Issued by NWS Boston, MA
Issued by NWS Boston, MA
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351 FZUS51 KBOX 291104 CWFBOX Coastal Waters Forecast for Massachusetts and Rhode Island National Weather Service Boston/Norton MA 704 AM EDT Sat Jun 29 2024 Coastal waters from the Merrimack River MA to Watch Hill RI out to 25 NM ANZ200-300000- 704 AM EDT Sat Jun 29 2024 .Synopsis for Massachusetts and Rhode Island coastal waters... High pres moves offshore today, which will allow a warm front to lift in. A cold front slides in on Sun bringing showers and thunderstorms. This front should cross the waters sometime Sun night. This will be followed by a ridge of high pressure early next week. $$ ANZ250-300000- Coastal waters east of Ipswich Bay and the Stellwagen Bank National Marine Sanctuary- 704 AM EDT Sat Jun 29 2024 ...SMALL CRAFT ADVISORY IN EFFECT FROM NOON EDT TODAY THROUGH SUNDAY EVENING... .TODAY...S winds 10 to 15 kt, increasing to 15 to 20 kt this afternoon. Gusts up to 25 kt. Seas 2 to 3 ft, building to 3 to 5 ft this afternoon. Wave Detail: S 2 ft at 3 seconds and SE 2 ft at 9 seconds, becoming SE 4 ft at 9 seconds and S 2 ft at 3 seconds. .TONIGHT...S winds 15 to 20 kt with gusts up to 30 kt. Seas 3 to 5 ft. Wave Detail: S 4 ft at 5 seconds. A chance of showers in the evening, then showers after midnight. Patchy fog after midnight with vsby 1 to 3 NM. .SUN...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to 5 ft. Wave Detail: SE 4 ft at 8 seconds and SW 3 ft at 4 seconds. Patchy fog. Showers likely. Vsby 1 to 3 NM in the morning. .SUN NIGHT...SW winds 15 to 20 kt with gusts up to 25 kt, becoming NW 10 to 15 kt after midnight. Seas 2 to 4 ft. Wave Detail: SE 3 ft at 8 seconds and SW 2 ft at 4 seconds. A chance of rain. Patchy fog in the evening. .MON AND MON NIGHT...N winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: N 2 ft at 4 seconds and SE 2 ft at 7 seconds. .TUE THROUGH WED NIGHT...S winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Wave Detail: SE 3 ft at 7 seconds and SW 2 ft at 3 seconds. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ251-300000- Massachusetts Bay and Ipswich Bay- 704 AM EDT Sat Jun 29 2024 ...SMALL CRAFT ADVISORY IN EFFECT FROM NOON EDT TODAY THROUGH SUNDAY EVENING... .TODAY...S winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 3 ft. Wave Detail: S 3 ft at 4 seconds and NE 1 foot at 4 seconds. .TONIGHT...S winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 3 ft. Wave Detail: S 3 ft at 4 seconds. A chance of showers in the evening, then showers after midnight. Patchy fog after midnight with vsby 1 to 3 NM. .SUN...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 3 ft. Wave Detail: SE 3 ft at 6 seconds and SW 2 ft at 3 seconds. Showers likely. Patchy fog in the morning with vsby 1 to 3 NM. .SUN NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt, becoming NW 5 to 10 kt after midnight. Seas 2 to 3 ft. Wave Detail: SE 2 ft at 7 seconds and SW 1 foot at 3 seconds. A chance of rain. .MON AND MON NIGHT...N winds 10 to 15 kt. Seas around 2 ft. Wave Detail: N 2 ft at 3 seconds and SE 1 foot at 7 seconds. .TUE THROUGH WED NIGHT...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 E 2 ft at 7 seconds. 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. $$ ANZ231-300000- Cape Cod Bay- 704 AM EDT Sat Jun 29 2024 ...SMALL CRAFT ADVISORY IN EFFECT FROM THIS EVENING THROUGH SUNDAY EVENING... .TODAY...S winds 10 to 15 kt. Gusts up to 25 kt this afternoon. Seas around 2 ft. Wave Detail: SE 2 ft at 7 seconds and S 1 foot at 2 seconds. .TONIGHT...S winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 4 ft. Wave Detail: S 2 ft at 3 seconds and SE 2 ft at 6 seconds. A chance of showers in the evening, then showers after midnight. Patchy fog after midnight with vsby 1 to 3 NM. .SUN...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 4 ft. Wave Detail: SW 2 ft at 3 seconds and S 2 ft at 6 seconds. Patchy fog. Showers. Vsby 1 to 3 NM in the morning. .SUN NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt, becoming W after midnight. Seas 2 to 3 ft. Wave Detail: SW 2 ft at 3 seconds and S 2 ft at 7 seconds. Showers likely in the evening. A chance of rain after midnight. Patchy fog in the evening. .MON AND MON NIGHT...N winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft. Wave Detail: N 2 ft at 4 seconds and SE 2 ft at 7 seconds. .TUE THROUGH WED NIGHT...SW winds 5 to 10 kt. Seas around 2 ft. Wave Detail: N 1 foot at 4 seconds and SE 1 foot at 7 seconds. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ254-300000- Coastal waters from Provincetown MA to Chatham MA to Nantucket MA out 20 nm- 704 AM EDT Sat Jun 29 2024 ...SMALL CRAFT ADVISORY IN EFFECT FROM THIS EVENING THROUGH SUNDAY EVENING... .TODAY...S winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 4 ft. Wave Detail: SE 3 ft at 9 seconds and S 2 ft at 3 seconds. .TONIGHT...S winds 15 to 20 kt with gusts up to 30 kt. Seas 3 to 5 ft. Wave Detail: S 4 ft at 7 seconds and SW 2 ft at 3 seconds. A chance of showers in the evening, then showers likely after midnight. Patchy fog after midnight with vsby 1 to 3 NM. .SUN...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 4 to 6 ft. Wave Detail: SW 5 ft at 5 seconds. Patchy fog. Showers. Vsby 1 to 3 NM in the morning. .SUN NIGHT...SW winds 15 to 20 kt, becoming W 10 to 15 kt after midnight. Gusts up to 25 kt. Seas 3 to 5 ft. Wave Detail: S 4 ft at 7 seconds and W 1 foot at 4 seconds. A chance of tstms. Rain likely in the evening, then a chance of rain after midnight. Patchy fog in the evening with vsby 1 to 3 NM. .MON...N 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 N 2 ft at 4 seconds. A chance of rain in the morning. .MON NIGHT...N winds around 10 kt. Seas 3 to 4 ft. Wave Detail: S 3 ft at 7 seconds and N 2 ft at 4 seconds. .TUE AND TUE NIGHT...N winds 5 to 10 kt, becoming NW. Seas 2 to 4 ft. .WED AND WED NIGHT...W winds 5 to 10 kt, becoming SW 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. $$ ANZ255-300000- Coastal Waters extending out to 25 nm South of Marthas Vineyard and Nantucket- 704 AM EDT Sat Jun 29 2024 ...SMALL CRAFT ADVISORY IN EFFECT FROM THIS EVENING THROUGH SUNDAY EVENING... .TODAY...S winds 10 to 15 kt. Gusts up to 20 kt this afternoon. Seas 2 to 4 ft. Wave Detail: S 3 ft at 8 seconds and S 2 ft at 3 seconds. .TONIGHT...S winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to 4 ft, building to 4 to 6 ft after midnight. Wave Detail: S 4 ft at 6 seconds and S 1 foot at 3 seconds, becoming S 5 ft at 5 seconds. Patchy fog after midnight. Showers likely after midnight with vsby 1 to 3 NM. .SUN...SW winds around 20 kt with gusts up to 25 kt. Seas 5 to 6 ft. Wave Detail: SW 5 ft at 6 seconds. Patchy fog. Showers. Vsby 1 to 3 NM in the morning. .SUN NIGHT...SW winds 15 to 20 kt, becoming W 10 to 15 kt after midnight. Gusts up to 25 kt. Seas 4 to 6 ft. Wave Detail: S 5 ft at 7 seconds and SW 1 foot at 4 seconds. Rain with a chance of tstms. Patchy fog in the evening. Vsby 1 to 3 NM. .MON...N winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 5 ft. Wave Detail: S 5 ft at 8 seconds and N 2 ft at 3 seconds. A chance of rain in the morning. .MON NIGHT...N winds 10 to 15 kt. Seas 2 to 4 ft. Wave Detail: S 4 ft at 7 seconds and N 2 ft at 4 seconds. .TUE THROUGH WED NIGHT...SW winds 10 to 15 kt. Seas 2 to 3 ft. Winds and seas higher in and near tstms. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ256-300000- Coastal Waters from Montauk NY to Marthas Vineyard extending out to 20 nm South of Block Island- 704 AM EDT Sat Jun 29 2024 ...SMALL CRAFT ADVISORY IN EFFECT FROM THIS EVENING THROUGH SUNDAY EVENING... .TODAY...S winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 4 ft. Wave Detail: SE 3 ft at 8 seconds and S 1 foot at 3 seconds. .TONIGHT...S winds 15 to 20 kt with gusts up to 25 kt. Seas 4 to 6 ft. Wave Detail: S 5 ft at 6 seconds. A chance of showers in the evening, then showers after midnight. Patchy fog after midnight with vsby 1 NM or less. .SUN...SW winds around 20 kt with gusts up to 25 kt. Seas 5 to 6 ft. Wave Detail: SW 5 ft at 5 seconds. Patchy fog. Showers. Vsby 1 to 3 NM in the morning. .SUN NIGHT...SW winds 15 to 20 kt, becoming W 10 to 15 kt after midnight. Gusts up to 25 kt. Seas 4 to 6 ft. Wave Detail: S 6 ft at 7 seconds. Rain likely with a chance of tstms. Patchy fog in the evening. Vsby 1 to 3 NM. .MON...N winds 10 to 15 kt. Gusts up to 20 kt in the afternoon. Seas 3 to 5 ft. Wave Detail: S 5 ft at 7 seconds and N 1 foot at 3 seconds. A chance of rain in the morning. .MON NIGHT...N winds 10 to 15 kt. Seas 2 to 4 ft. Wave Detail: S 4 ft at 7 seconds and N 1 foot at 3 seconds. .TUE THROUGH WED NIGHT...SW 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. $$ ANZ232-300000- Nantucket Sound- 704 AM EDT Sat Jun 29 2024 ...SMALL CRAFT ADVISORY IN EFFECT FROM THIS EVENING THROUGH SUNDAY EVENING... .TODAY...S winds 10 to 15 kt. Gusts up to 20 kt this afternoon. Seas 2 to 3 ft. Wave Detail: S 2 ft at 3 seconds and SE 2 ft at 8 seconds. .TONIGHT...S winds 15 to 20 kt, increasing to 20 to 25 kt after midnight. Gusts up to 30 kt. Seas 2 to 4 ft. Wave Detail: S 3 ft at 5 seconds. A chance of showers in the evening, then showers after midnight. Patchy fog after midnight with vsby 1 to 3 NM. .SUN...SW winds around 20 kt with gusts up to 30 kt. Seas 3 to 4 ft. Wave Detail: S 3 ft at 5 seconds. Patchy fog. Showers. Vsby 1 to 3 NM in the morning. .SUN NIGHT...SW winds 15 to 20 kt with gusts up to 25 kt, becoming W 10 to 15 kt after midnight. Seas 2 to 4 ft. Wave Detail: SW 3 ft at 4 seconds and S 2 ft at 7 seconds. Rain likely with a chance of tstms. Patchy fog in the evening. .MON...N winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Wave Detail: N 2 ft at 3 seconds and S 2 ft at 7 seconds. A chance of rain in the morning. .MON NIGHT...N winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: N 2 ft at 4 seconds and S 1 foot at 7 seconds. .TUE THROUGH WED NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft. Winds and seas higher in and near tstms. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ233-300000- Vineyard Sound- 704 AM EDT Sat Jun 29 2024 ...SMALL CRAFT ADVISORY IN EFFECT FROM THIS EVENING THROUGH SUNDAY EVENING... .TODAY...S winds 10 to 15 kt. Gusts up to 20 kt this afternoon. Seas 2 to 3 ft. Wave Detail: S 2 ft at 7 seconds and S 1 foot at 3 seconds. .TONIGHT...S winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 4 ft. Wave Detail: S 4 ft at 4 seconds. A chance of showers in the evening, then showers after midnight. Patchy fog after midnight with vsby 1 to 3 NM. .SUN...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. Patchy fog. Showers in the morning. Showers likely in the afternoon. Vsby 1 to 3 NM in the morning. .SUN NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt, becoming W 5 to 10 kt after midnight. Seas 2 to 4 ft. Wave Detail: S 3 ft at 7 seconds and SW 2 ft at 4 seconds. Rain likely with a chance of tstms. Patchy fog in the evening. .MON...N winds 10 to 15 kt. Gusts up to 20 kt in the afternoon. Seas 2 to 3 ft. Wave Detail: S 3 ft at 7 seconds and N 1 foot at 4 seconds. A chance of rain in the morning. .MON NIGHT...N winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: S 2 ft at 7 seconds and N 1 foot at 4 seconds. .TUE THROUGH WED NIGHT...SW winds 10 to 15 kt with gusts up to 20 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. $$ ANZ234-300000- Buzzards Bay- 704 AM EDT Sat Jun 29 2024 ...SMALL CRAFT ADVISORY IN EFFECT FROM THIS EVENING THROUGH SUNDAY EVENING... .TODAY...S winds 10 to 15 kt. Gusts up to 20 kt this afternoon. Seas around 2 ft. Wave Detail: S 2 ft at 6 seconds and S 1 foot at 3 seconds. .TONIGHT...S winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 4 ft. Wave Detail: S 3 ft at 5 seconds. A chance of showers in the evening, then showers after midnight. Patchy fog after midnight with vsby 1 to 3 NM. .SUN...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to 4 ft. Wave Detail: S 3 ft at 5 seconds. Patchy fog. Showers. Vsby 1 to 3 NM in the morning. .SUN NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt, becoming W 5 to 10 kt after midnight. Seas 2 to 4 ft. Wave Detail: S 3 ft at 7 seconds and SW 2 ft at 4 seconds. Rain likely with a chance of tstms in the evening, then a chance of rain after midnight. Patchy fog in the evening. .MON AND MON NIGHT...N winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft. Wave Detail: S 2 ft at 7 seconds and N 1 foot at 4 seconds. .TUE THROUGH WED NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft. Wave Detail: SW 2 ft at 3 seconds and S 2 ft at 7 seconds. Winds and seas higher in and near tstms. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ235-300000- Rhode Island Sound- 704 AM EDT Sat Jun 29 2024 ...SMALL CRAFT ADVISORY IN EFFECT FROM THIS EVENING THROUGH SUNDAY EVENING... .TODAY...S winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. Wave Detail: S 3 ft at 7 seconds and S 2 ft at 3 seconds. .TONIGHT...S 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 S 1 foot at 3 seconds. A chance of showers in the evening, then showers after midnight. Patchy fog after midnight with vsby 1 to 3 NM. .SUN...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 4 to 5 ft. Wave Detail: SW 5 ft at 6 seconds. Patchy fog. Showers. Vsby 1 to 3 NM in the morning. .SUN NIGHT...SW winds 15 to 20 kt with gusts up to 25 kt, becoming NW 5 to 10 kt after midnight. Seas 3 to 5 ft. Wave Detail: S 5 ft at 7 seconds and SW 1 foot at 4 seconds. Rain likely with a chance of tstms in the evening, then a chance of rain after midnight. Patchy fog in the evening with vsby 1 to 3 NM. .MON AND MON NIGHT...N winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. Wave Detail: S 4 ft at 7 seconds and N 1 foot at 3 seconds. .TUE THROUGH WED 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 S 3 ft at 7 seconds. 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. $$ ANZ237-300000- Block Island Sound- 704 AM EDT Sat Jun 29 2024 ...SMALL CRAFT ADVISORY IN EFFECT FROM THIS EVENING THROUGH SUNDAY EVENING... .TODAY...S winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Wave Detail: S 3 ft at 6 seconds and S 1 foot at 3 seconds. .TONIGHT...S winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 4 ft. Wave Detail: S 4 ft at 5 seconds. A chance of showers in the evening, then showers after midnight. Patchy fog after midnight with vsby 1 NM or less. .SUN...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to 5 ft. Wave Detail: SW 4 ft at 5 seconds. Patchy fog. Showers. A chance of tstms in the morning with vsby 1 to 3 NM. .SUN NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt, becoming NW 5 to 10 kt after midnight. Seas 3 to 5 ft. Wave Detail: S 4 ft at 7 seconds and W 1 foot at 3 seconds. Showers likely in the evening. A chance of rain after midnight. Patchy fog in the evening with vsby 1 to 3 NM. .MON AND MON NIGHT...N winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: S 3 ft at 7 seconds and NE 1 foot at 3 seconds. .TUE THROUGH WED NIGHT...SW winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: S 3 ft at 7 seconds and SW 2 ft at 3 seconds. Winds and seas higher in and near tstms. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ230-300000- Boston Harbor- 704 AM EDT Sat Jun 29 2024 ...SMALL CRAFT ADVISORY IN EFFECT FROM LATE TONIGHT THROUGH SUNDAY EVENING... .TODAY...S winds 5 to 10 kt, increasing to 10 to 15 kt with gusts up to 20 kt this afternoon. Waves 1 foot or less, then around 2 ft this afternoon. .TONIGHT...S winds 15 to 20 kt with gusts up to 25 kt. Waves around 2 ft. Showers. Patchy fog after midnight with vsby 1 to 3 NM. .SUN...SW winds around 15 kt with gusts up to 20 kt. Waves around 2 ft. Showers likely. Patchy fog in the morning with vsby 1 to 3 NM. .SUN NIGHT...SW winds 10 to 15 kt, becoming NW 5 to 10 kt after midnight. Waves around 2 ft in the evening, then 1 foot or less. A chance of rain. .MON...N winds 5 to 10 kt. Waves around 2 ft. .MON NIGHT...N winds 5 to 10 kt. Waves 1 foot or less. .TUE THROUGH WED NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Waves around 2 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ236-300000- Narragansett Bay- 704 AM EDT Sat Jun 29 2024 ...SMALL CRAFT ADVISORY IN EFFECT FROM LATE TONIGHT THROUGH SUNDAY EVENING... .TODAY...S winds 10 to 15 kt. Gusts up to 20 kt this afternoon. Waves around 2 ft. .TONIGHT...S winds 15 to 20 kt with gusts up to 25 kt. Waves 2 to 3 ft. A chance of showers in the evening, then showers after midnight. Patchy fog after midnight with vsby 1 to 3 NM. .SUN...SW winds around 15 kt with gusts up to 25 kt. Waves 2 to 4 ft. Patchy fog. Showers likely. Vsby 1 to 3 NM in the morning. .SUN NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt, becoming NW 5 to 10 kt after midnight. Waves 2 to 4 ft. A chance of rain. Patchy fog in the evening. .MON AND MON NIGHT...N winds 5 to 10 kt. Waves 2 to 3 ft. .TUE THROUGH WED NIGHT...SW winds 10 to 15 kt. Waves around 2 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ For the latest updates...please visit our webpage at www.weather.gov/boston You can follow us on Facebook at www.facebook.com/NWSBoston You can follow us on Twitter at @NWSBoston