Coastal Waters Forecast
Issued by NWS Boston, MA

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375 FZUS51 KBOX 131935 CWFBOX Coastal Waters Forecast for Massachusetts and Rhode Island National Weather Service Boston/Norton MA 335 PM EDT Thu Jun 13 2024 Coastal waters from the Merrimack River MA to Watch Hill RI out to 25 NM ANZ200-140800- 335 PM EDT Thu Jun 13 2024 .Synopsis for Massachusetts and Rhode Island coastal waters... High pressure will remain over the waters through Thu. Winds become gusty out of the SW Thursday, before a cold front over the Great Lakes is expected to cross the region Fri. Showers and Thunderstorms will accompany the cold front. A tropical low may track well southeast of New England Saturday, across Georges Bank and then south of Nova Scotia. High pressure then builds across the waters Sunday and Monday. $$ ANZ250-140800- Coastal waters east of Ipswich Bay and the Stellwagen Bank National Marine Sanctuary- 335 PM EDT Thu Jun 13 2024 .THIS AFTERNOON...S winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Wave Detail: S 2 ft at 3 seconds and SE 2 ft at 8 seconds. .TONIGHT...SW winds around 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. Wave Detail: S 3 ft at 4 seconds and SE 3 ft at 8 seconds. .FRI...S winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to 4 ft. Wave Detail: SW 3 ft at 4 seconds and SE 3 ft at 8 seconds. .FRI NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt, becoming W 5 to 10 kt after midnight. Seas 2 to 4 ft. Wave Detail: SE 3 ft at 7 seconds and SW 2 ft at 4 seconds. Patchy fog. Showers likely. Vsby 1 to 3 NM. .SAT...N winds around 10 kt. Seas 2 to 3 ft. Wave Detail: NW 2 ft at 3 seconds and SE 2 ft at 8 seconds. Showers likely, mainly in the morning. .SAT NIGHT...N winds 5 to 10 kt, increasing to 10 to 15 kt with gusts up to 20 kt after midnight. Seas 2 to 4 ft. Wave Detail: N 3 ft at 5 seconds and SE 1 foot at 14 seconds. .SUN THROUGH MON NIGHT...S winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ251-140800- Massachusetts Bay and Ipswich Bay- 335 PM EDT Thu Jun 13 2024 .THIS AFTERNOON...S winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft. Wave Detail: SE 2 ft at 6 seconds and SW 1 foot at 2 seconds. .TONIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft. Wave Detail: S 2 ft at 3 seconds and SE 2 ft at 6 seconds. .FRI...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 S 2 ft at 3 seconds. A chance of showers in the afternoon. .FRI NIGHT...SW winds 5 to 10 kt. Seas around 2 ft. Wave Detail: SE 2 ft at 7 seconds and SW 1 foot at 3 seconds. Patchy fog. Showers likely. Vsby 1 to 3 NM. .SAT...N winds around 10 kt. Seas 2 to 3 ft. Wave Detail: N 2 ft at 3 seconds and E 2 ft at 8 seconds. Showers likely, mainly in the morning. .SAT NIGHT...N winds 5 to 10 kt, increasing to 10 to 15 kt after midnight. Seas 2 to 3 ft. Wave Detail: N 2 ft at 5 seconds and E 1 foot at 15 seconds. .SUN THROUGH MON NIGHT...S winds 10 to 15 kt with gusts up to 20 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. $$ ANZ231-140800- Cape Cod Bay- 335 PM EDT Thu Jun 13 2024 .THIS AFTERNOON...SW winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft. Wave Detail: SW 1 foot at 2 seconds and SE 1 foot at 7 seconds. .TONIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft. Wave Detail: SW 1 foot at 3 seconds and SE 1 foot at 7 seconds. .FRI...SW winds 10 to 15 kt with gusts up to 25 kt. Seas around 2 ft. Wave Detail: SW 2 ft at 3 seconds and SE 2 ft at 7 seconds. .FRI NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt, becoming W 5 to 10 kt after midnight. Seas around 2 ft. Wave Detail: SW 1 foot at 3 seconds and SE 1 foot at 7 seconds. Patchy fog. Showers likely. .SAT...N winds 5 to 10 kt, increasing to 10 to 15 kt with gusts up to 20 kt in the afternoon. Seas around 2 ft. Wave Detail: NW 1 foot at 3 seconds and E 1 foot at 7 seconds. Showers likely, mainly in the morning. Patchy fog in the morning. .SAT NIGHT...N winds 5 to 10 kt, increasing to 10 to 15 kt after midnight. Seas around 2 ft. Wave Detail: N 1 foot at 5 seconds and SE 1 foot at 15 seconds. .SUN THROUGH MON NIGHT...S winds 10 to 15 kt. Seas around 2 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ254-140800- Coastal waters from Provincetown MA to Chatham MA to Nantucket MA out 20 nm- 335 PM EDT Thu Jun 13 2024 .THIS AFTERNOON...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 SE 2 ft at 8 seconds. Patchy dense fog. Vsby 1 NM or less. .TONIGHT...SW 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 SW 2 ft at 4 seconds. Patchy dense fog. Vsby 1 NM or less. .FRI...S 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 SW 2 ft at 4 seconds. Patchy dense fog in the morning with vsby 1 NM or less. .FRI NIGHT...S winds around 10 kt with gusts up to 20 kt, becoming W after midnight. Seas 2 to 3 ft. Wave Detail: SW 2 ft at 4 seconds and SE 2 ft at 8 seconds. Patchy fog. A chance of showers in the evening, then showers likely after midnight. Vsby 1 NM or less in the evening. .SAT...N winds 5 to 10 kt, increasing to 10 to 15 kt with gusts up to 20 kt in the afternoon. Seas 2 to 4 ft. Wave Detail: N 2 ft at 4 seconds and SE 2 ft at 7 seconds. Showers likely, mainly in the morning. Patchy fog in the morning. .SAT NIGHT...N winds 10 to 15 kt. Gusts up to 20 kt after midnight. Seas 3 to 4 ft. Wave Detail: E 4 ft at 7 seconds and NW 2 ft at 4 seconds. .SUN THROUGH MON NIGHT...S winds 10 to 15 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. $$ ANZ255-140800- Coastal Waters extending out to 25 nm South of Marthas Vineyard and Nantucket- 335 PM EDT Thu Jun 13 2024 .THIS AFTERNOON...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Wave Detail: SW 2 ft at 3 seconds and SE 2 ft at 8 seconds. Patchy dense fog. Vsby 1 NM or less. .TONIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Wave Detail: SE 3 ft at 8 seconds and SW 2 ft at 4 seconds. Patchy dense fog. Vsby 1 NM or less. .FRI...S winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: SE 3 ft at 8 seconds and SW 2 ft at 5 seconds. Patchy dense fog in the morning. Patchy fog in the afternoon. Vsby 1 NM or less, increasing to 1 to 3 NM in the afternoon. .FRI NIGHT...S winds 5 to 10 kt, becoming W after midnight. Seas 2 to 3 ft. Wave Detail: SE 3 ft at 7 seconds and SW 2 ft at 4 seconds. Patchy fog. Showers likely. Vsby 1 NM or less in the evening. .SAT...N winds 5 to 10 kt, increasing to 10 to 15 kt with gusts up to 20 kt in the afternoon. Seas 2 to 4 ft. Wave Detail: NE 3 ft at 7 seconds and NW 2 ft at 4 seconds. Showers likely, mainly in the morning. Patchy fog in the morning. .SAT NIGHT...N winds 10 to 15 kt. Seas 3 to 4 ft. Wave Detail: SE 4 ft at 9 seconds and NW 2 ft at 3 seconds. .SUN AND SUN NIGHT...NE winds 10 to 15 kt, becoming S 5 to 10 kt. Seas 2 to 4 ft. .MON AND MON NIGHT...S winds 10 to 15 kt. Seas around 2 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ256-140800- Coastal Waters from Montauk NY to Marthas Vineyard extending out to 20 nm South of Block Island- 335 PM EDT Thu Jun 13 2024 .THIS AFTERNOON...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 SE 2 ft at 8 seconds. Patchy fog. Vsby 1 NM or less. .TONIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas around 3 ft. Wave Detail: SE 3 ft at 8 seconds and SW 2 ft at 4 seconds. Patchy dense fog. Vsby 1 NM or less. .FRI...S winds 10 to 15 kt. Seas around 3 ft. Wave Detail: SE 3 ft at 8 seconds and SW 2 ft at 5 seconds. .FRI NIGHT...S winds 5 to 10 kt, becoming W after midnight. Seas 2 to 3 ft. Wave Detail: SW 2 ft at 4 seconds and SE 2 ft at 8 seconds. Patchy fog. Showers likely. .SAT...N winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: SE 3 ft at 8 seconds and NW 2 ft at 5 seconds. Showers likely in the morning. .SAT NIGHT...NE winds 5 to 10 kt, becoming N 10 to 15 kt after midnight. Seas 3 to 4 ft. Wave Detail: SE 4 ft at 9 seconds and NW 1 foot at 4 seconds. .SUN AND SUN NIGHT...NE winds 10 to 15 kt, becoming S 5 to 10 kt. Seas 2 to 4 ft. .MON AND MON NIGHT...S 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. $$ ANZ232-140800- Nantucket Sound- 335 PM EDT Thu Jun 13 2024 .THIS AFTERNOON...SW winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft. Wave Detail: SW 2 ft at 3 seconds and SE 1 foot at 8 seconds. .TONIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft. Wave Detail: SW 2 ft at 3 seconds and SE 1 foot at 8 seconds. Patchy dense fog. Vsby 1 NM or less. .FRI...SW winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft. Wave Detail: SW 2 ft at 3 seconds and S 1 foot at 8 seconds. .FRI NIGHT...SW winds around 10 kt, becoming W after midnight. Seas around 2 ft. Wave Detail: SW 2 ft at 3 seconds and SE 1 foot at 7 seconds. A chance of showers in the evening, then showers likely after midnight. Patchy fog after midnight. Vsby 1 to 3 NM in the evening. .SAT...N winds 5 to 10 kt, increasing to 10 to 15 kt with gusts up to 20 kt in the afternoon. Seas around 2 ft. Wave Detail: NW 2 ft at 4 seconds and NE 2 ft at 7 seconds. Showers likely, mainly in the morning. Patchy fog in the morning. .SAT NIGHT...N winds 10 to 15 kt. Seas around 2 ft. Wave Detail: NE 2 ft at 6 seconds and NW 1 foot at 4 seconds. .SUN THROUGH MON NIGHT...S winds 10 to 15 kt. Seas around 2 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ233-140800- Vineyard Sound- 335 PM EDT Thu Jun 13 2024 .THIS AFTERNOON...SW winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft. Wave Detail: SW 1 foot at 3 seconds and S 1 foot at 8 seconds. .TONIGHT...SW winds around 10 kt. Gusts up to 20 kt in the evening. Seas around 2 ft. Wave Detail: SW 2 ft at 4 seconds and S 2 ft at 8 seconds. Patchy dense fog. Vsby 1 NM or less. .FRI...SW winds 10 to 15 kt with gusts up to 25 kt. Seas around 2 ft. Wave Detail: SW 2 ft at 4 seconds and S 2 ft at 7 seconds. .FRI NIGHT...SW winds around 10 kt, becoming W after midnight. Seas around 2 ft. Wave Detail: SW 2 ft at 4 seconds and S 1 foot at 7 seconds. Patchy fog. Showers likely. .SAT...N 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: NW 1 foot at 4 seconds and SE 1 foot at 8 seconds. Showers likely, mainly in the morning. .SAT NIGHT...N winds 5 to 10 kt. Seas around 2 ft. Wave Detail: SE 2 ft at 8 seconds and W 1 foot at 5 seconds. .SUN THROUGH MON NIGHT...S 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. $$ ANZ234-140800- Buzzards Bay- 335 PM EDT Thu Jun 13 2024 .THIS AFTERNOON...SW winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft. Wave Detail: SW 1 foot at 3 seconds and S 1 foot at 7 seconds. Patchy fog. Vsby 1 NM or less. .TONIGHT...SW winds around 10 kt. Gusts up to 20 kt in the evening. Seas around 2 ft. Wave Detail: SW 1 foot at 4 seconds and S 1 foot at 8 seconds. Patchy dense fog. Vsby 1 NM or less. .FRI...SW winds 10 to 15 kt with gusts up to 25 kt. Seas around 2 ft. Wave Detail: SW 2 ft at 4 seconds and S 1 foot at 7 seconds. Patchy fog in the morning with vsby 1 NM or less. .FRI NIGHT...SW winds 5 to 10 kt, becoming W after midnight. Seas around 2 ft. Wave Detail: S 2 ft at 6 seconds. Patchy fog. Showers likely. .SAT...N winds 5 to 10 kt, increasing to 10 to 15 kt with gusts up to 20 kt in the afternoon. Seas around 2 ft. Wave Detail: NW 1 foot at 4 seconds and SE 1 foot at 8 seconds. Showers likely, mainly in the morning. .SAT NIGHT...N winds 5 to 10 kt. Seas around 2 ft. Wave Detail: W 1 foot at 5 seconds and NE 1 foot at 6 seconds. .SUN THROUGH MON NIGHT...S winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ235-140800- Rhode Island Sound- 335 PM EDT Thu Jun 13 2024 .THIS AFTERNOON...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 SE 2 ft at 8 seconds. Patchy fog. Vsby 1 NM or less. .TONIGHT...SW winds 10 to 15 kt. Gusts up to 20 kt in the evening. Seas 2 to 3 ft. Wave Detail: S 3 ft at 8 seconds and SW 2 ft at 4 seconds. Patchy dense fog. Vsby 1 NM or less. .FRI...SW 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. Patchy dense fog in the morning with vsby 1 NM or less. .FRI NIGHT...SW winds 5 to 10 kt, becoming W after midnight. Seas 2 to 3 ft. Wave Detail: SW 2 ft at 4 seconds and SE 2 ft at 7 seconds. Patchy fog. Showers likely. .SAT...N winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: NE 3 ft at 8 seconds and NW 2 ft at 5 seconds. Showers likely in the morning. .SAT NIGHT...N winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: NE 3 ft at 7 seconds and W 1 foot at 4 seconds. .SUN THROUGH MON NIGHT...S 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. $$ ANZ237-140800- Block Island Sound- 335 PM EDT Thu Jun 13 2024 .THIS AFTERNOON...SW winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft. Wave Detail: SW 2 ft at 3 seconds and SE 2 ft at 8 seconds. Patchy fog. Vsby 1 NM or less. .TONIGHT...SW winds around 10 kt with gusts up to 20 kt. Seas 2 to 3 ft. Wave Detail: S 3 ft at 8 seconds and SW 2 ft at 3 seconds. Patchy dense fog in the evening with vsby 1 NM or less. .FRI...SW winds 10 to 15 kt. Gusts up to 20 kt in the afternoon. Seas 2 to 3 ft. Wave Detail: S 3 ft at 7 seconds and SW 2 ft at 4 seconds. .FRI NIGHT...SW winds 5 to 10 kt, becoming NW after midnight. Seas 2 to 3 ft. Wave Detail: SW 2 ft at 4 seconds and SE 2 ft at 7 seconds. Patchy fog. Showers likely. .SAT...N winds 5 to 10 kt. Seas around 2 ft. Wave Detail: SE 2 ft at 8 seconds and NW 1 foot at 5 seconds. Showers likely in the morning. .SAT NIGHT...N winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: E 3 ft at 8 seconds and NW 1 foot at 3 seconds. .SUN THROUGH MON NIGHT...S winds 5 to 10 kt. Seas 2 to 3 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ230-140800- Boston Harbor- 335 PM EDT Thu Jun 13 2024 .THIS AFTERNOON...S winds 5 to 10 kt. Waves 1 foot or less. .TONIGHT...SW winds around 10 kt. Waves 1 foot or less, then around 2 ft after midnight. .FRI...SW winds around 10 kt with gusts up to 20 kt. Waves around 2 ft. A chance of showers in the afternoon. .FRI NIGHT...W winds 5 to 10 kt. Waves around 2 ft in the evening, then 1 foot or less. Patchy fog. Showers. Vsby 1 to 3 NM. .SAT...N winds around 10 kt. Waves around 2 ft. Showers likely, mainly in the morning. .SAT NIGHT...N winds 5 to 10 kt. Waves 1 foot or less. .SUN THROUGH MON NIGHT...S 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. $$ ANZ236-140800- Narragansett Bay- 335 PM EDT Thu Jun 13 2024 .THIS AFTERNOON...SW winds 10 to 15 kt with gusts up to 20 kt. Waves around 2 ft. .TONIGHT...SW winds 5 to 10 kt. Gusts up to 20 kt in the evening. Waves around 2 ft. .FRI...SW winds 10 to 15 kt with gusts up to 20 kt. Waves around 2 ft. .FRI NIGHT...SW winds 5 to 10 kt, becoming W after midnight. Waves around 2 ft. Patchy fog. Showers likely. .SAT...N winds 5 to 10 kt. Waves around 2 ft. Showers likely in the morning. .SAT NIGHT...N winds 5 to 10 kt. Waves 2 to 3 ft. .SUN THROUGH MON NIGHT...SW winds 10 to 15 kt. Waves 2 to 3 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ 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