Coastal Waters Forecast
Issued by NWS Boston, MA
Issued by NWS Boston, MA
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472 FZUS51 KBOX 110505 CWFBOX Coastal Waters Forecast for Massachusetts and Rhode Island National Weather Service Boston/Norton MA 104 AM EDT Tue Jun 11 2024 Coastal waters from the Merrimack River MA to Watch Hill RI out to 25 NM ANZ200-111800- 104 AM EDT Tue Jun 11 2024 .Synopsis for Massachusetts and Rhode Island coastal waters... A weak front will moves across the waters through tonight followed by weak high pressure and tranquil boating conditions Tuesday and Wednesday. The high pressure moves offshore Thursday with increasing southwest flow developing later Thursday into Friday as a cold front approaches from the west. This front will cross the waters Friday night into Saturday with rain and perhaps a few thunderstorms. $$ ANZ250-111800- Coastal waters east of Ipswich Bay and the Stellwagen Bank National Marine Sanctuary- 104 AM EDT Tue Jun 11 2024 .REST OF TONIGHT...NW winds 5 to 10 kt. Seas around 2 ft. Wave Detail: SE 2 ft at 8 seconds and W 1 foot at 3 seconds. .TUE...W winds 5 to 10 kt, becoming S in the afternoon. Seas around 2 ft. Wave Detail: SE 2 ft at 8 seconds and W 1 foot at 3 seconds. .TUE NIGHT...S winds 5 to 10 kt. Seas around 2 ft. Wave Detail: S 2 ft at 5 seconds and SE 2 ft at 8 seconds. .WED...S winds around 5 kt, increasing to 5 to 10 kt in the afternoon. Seas around 2 ft. Wave Detail: SE 2 ft at 8 seconds and SE 1 foot at 7 seconds. .WED NIGHT THROUGH THU NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. Wave Detail: S 3 ft at 4 seconds and SE 2 ft at 8 seconds. .FRI AND FRI NIGHT...S winds 15 to 20 kt, becoming SW 10 to 15 kt. Gusts up to 25 kt. Seas 3 to 5 ft. Wave Detail: SW 3 ft at 4 seconds and E 2 ft at 8 seconds. A chance of showers. .SAT...N winds 5 to 10 kt. Seas 2 to 3 ft. A chance of showers. .SAT NIGHT...NW winds 5 to 10 kt. Seas around 2 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ251-111800- Massachusetts Bay and Ipswich Bay- 104 AM EDT Tue Jun 11 2024 .REST OF TONIGHT...NW winds 5 to 10 kt. Seas 1 foot or less. Wave Detail: W 1 foot at 2 seconds and S 1 foot at 3 seconds. .TUE...W winds 5 to 10 kt, becoming SE in the afternoon. Seas 1 foot or less. Wave Detail: NW 1 foot at 2 seconds and SE 1 foot at 7 seconds. .TUE NIGHT...S winds 5 to 10 kt, becoming SW after midnight. Seas 1 foot or less. Wave Detail: NW 1 foot at 2 seconds and SE 1 foot at 3 seconds. .WED...W winds around 5 kt, becoming SE in the afternoon. Seas 1 foot or less. Wave Detail: SE 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: S 2 ft at 3 seconds and E 1 foot at 8 seconds. .FRI AND FRI 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. A chance of showers. .SAT AND SAT NIGHT...N 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. $$ ANZ231-111800- Cape Cod Bay- 104 AM EDT Tue Jun 11 2024 .REST OF TONIGHT...W winds 5 to 10 kt. Seas 1 foot or less. Wave Detail: NW 1 foot at 3 seconds and SE 1 foot at 7 seconds. .TUE...NW winds 5 to 10 kt, becoming SE in the afternoon. Seas 1 foot or less. Wave Detail: NW 1 foot at 3 seconds and S 1 foot at 7 seconds. .TUE NIGHT...S winds around 5 kt. Seas 1 foot or less. Wave Detail: S 1 foot at 2 seconds and NW 1 foot at 3 seconds. .WED...SW winds around 5 kt, becoming S in the afternoon. Seas 1 foot or less. Wave Detail: SE 1 foot at 6 seconds. .WED NIGHT THROUGH THU NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft. Wave Detail: SW 2 ft at 3 seconds and E 1 foot at 7 seconds. .FRI...SW winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 4 ft. Wave Detail: SW 2 ft at 3 seconds and E 1 foot at 8 seconds. .FRI NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. A chance of showers. .SAT...N winds 5 to 10 kt. Seas around 2 ft. A chance of showers. .SAT NIGHT...N winds 5 to 10 kt. Seas around 2 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ254-111800- Coastal waters from Provincetown MA to Chatham MA to Nantucket MA out 20 nm- 104 AM EDT Tue Jun 11 2024 .REST OF TONIGHT...W winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: S 2 ft at 7 seconds and W 1 foot at 3 seconds. .TUE...W winds 5 to 10 kt, becoming S in the afternoon. Seas 2 to 3 ft. Wave Detail: S 2 ft at 7 seconds and NW 1 foot at 3 seconds. .TUE NIGHT...S winds around 5 kt. Seas around 2 ft. Wave Detail: S 2 ft at 7 seconds and W 1 foot at 3 seconds. .WED...S winds around 5 kt, increasing to 5 to 10 kt in the afternoon. Seas around 2 ft. Wave Detail: S 2 ft at 7 seconds and SE 1 foot at 8 seconds. .WED NIGHT THROUGH THU NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. Wave Detail: SW 3 ft at 4 seconds and SE 2 ft at 8 seconds. .FRI...SW winds around 15 kt with gusts up to 25 kt. Seas 3 to 5 ft. Wave Detail: SW 4 ft at 5 seconds and E 2 ft at 8 seconds. .FRI NIGHT...SW winds 10 to 15 kt with gusts up to 25 kt. Seas 3 to 5 ft. A chance of showers. .SAT...NW winds 10 to 15 kt. Seas 3 to 4 ft. A chance of showers. .SAT NIGHT...N 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. $$ ANZ255-111800- Coastal Waters extending out to 25 nm South of Marthas Vineyard and Nantucket- 104 AM EDT Tue Jun 11 2024 .REST OF TONIGHT...NW winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: S 3 ft at 6 seconds and W 1 foot at 3 seconds. .TUE...W winds around 5 kt, becoming SW in the afternoon. Seas 2 to 3 ft. Wave Detail: S 3 ft at 7 seconds and SE 2 ft at 8 seconds. .TUE NIGHT...S winds around 5 kt. Seas 2 to 3 ft. Wave Detail: S 3 ft at 7 seconds and SE 2 ft at 8 seconds. .WED...SW winds around 5 kt, increasing to 5 to 10 kt in the afternoon. Seas around 2 ft. Wave Detail: S 2 ft at 7 seconds and SE 2 ft at 8 seconds. .WED NIGHT THROUGH THU NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. Wave Detail: S 4 ft at 6 seconds and SW 1 foot at 2 seconds. .FRI...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to 5 ft. Wave Detail: SW 4 ft at 5 seconds and E 1 foot at 8 seconds. .FRI NIGHT AND SAT...SW winds 15 to 20 kt with gusts up to 25 kt, becoming N 10 to 15 kt. Seas 3 to 5 ft. A chance of showers. .SAT NIGHT...N winds 5 to 10 kt. Seas 2 to 4 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ256-111800- Coastal Waters from Montauk NY to Marthas Vineyard extending out to 20 nm South of Block Island- 104 AM EDT Tue Jun 11 2024 .REST OF TONIGHT...NW winds around 10 kt. Seas 2 to 3 ft. Wave Detail: S 3 ft at 7 seconds and NW 1 foot at 3 seconds. .TUE...NW winds 5 to 10 kt, becoming SW in the afternoon. Seas 2 to 3 ft. Wave Detail: S 2 ft at 7 seconds and SE 2 ft at 8 seconds. .TUE NIGHT...SW winds around 5 kt. Seas 2 to 3 ft. Wave Detail: S 2 ft at 7 seconds and SE 2 ft at 8 seconds. .WED...SW winds 5 to 10 kt. Seas around 2 ft. Wave Detail: S 2 ft at 7 seconds and SE 2 ft at 8 seconds. .WED NIGHT THROUGH THU NIGHT...SW 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 SW 1 foot at 3 seconds. .FRI...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 4 to 5 ft. Wave Detail: S 4 ft at 6 seconds. .FRI NIGHT...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 4 to 5 ft. A chance of showers. .SAT...N winds 5 to 10 kt. Seas 3 to 4 ft. A chance of showers. .SAT NIGHT...NE 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. $$ ANZ232-111800- Nantucket Sound- 104 AM EDT Tue Jun 11 2024 .REST OF TONIGHT...NW winds 5 to 10 kt. Seas around 2 ft. Wave Detail: W 1 foot at 3 seconds and SE 1 foot at 7 seconds. .TUE...W winds 5 to 10 kt, becoming SW in the afternoon. Seas around 2 ft. Wave Detail: W 1 foot at 2 seconds and SE 1 foot at 7 seconds. .TUE NIGHT...SW winds around 5 kt. Seas around 2 ft. Wave Detail: SW 1 foot at 2 seconds and S 1 foot at 7 seconds. .WED...SW winds around 5 kt, increasing to 5 to 10 kt in the afternoon. Seas 1 foot or less. Wave Detail: SW 1 foot at 2 seconds and SE 1 foot at 7 seconds. .WED NIGHT THROUGH THU NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Wave Detail: SW 2 ft at 3 seconds and SE 1 foot at 8 seconds. .FRI...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 3 ft. Wave Detail: SW 3 ft at 4 seconds and E 1 foot at 8 seconds. .FRI NIGHT...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 3 ft. A chance of showers. .SAT...N winds 10 to 15 kt. Seas 2 to 3 ft. A chance of showers. .SAT NIGHT...N winds 5 to 10 kt. Seas around 2 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ233-111800- Vineyard Sound- 104 AM EDT Tue Jun 11 2024 .REST OF TONIGHT...NW winds 5 to 10 kt. Seas around 2 ft. Wave Detail: S 2 ft at 6 seconds and W 1 foot at 3 seconds. .TUE...W winds around 5 kt, becoming SW in the afternoon. Seas around 2 ft. Wave Detail: NW 1 foot at 3 seconds and SE 1 foot at 7 seconds. .TUE NIGHT...SW winds around 5 kt. Seas around 2 ft. Wave Detail: SW 1 foot at 3 seconds and S 1 foot at 7 seconds. .WED...SW winds around 5 kt, increasing to 5 to 10 kt in the afternoon. Seas 1 foot or less. Wave Detail: SW 1 foot at 2 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 SE 1 foot at 8 seconds. .FRI...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 4 ft. Wave Detail: S 3 ft at 6 seconds. .FRI NIGHT...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 4 ft. A chance of showers. .SAT...N winds 5 to 10 kt. Seas 2 to 3 ft. A chance of showers. .SAT NIGHT...N 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. $$ ANZ234-111800- Buzzards Bay- 104 AM EDT Tue Jun 11 2024 .REST OF TONIGHT...NW winds 5 to 10 kt. Seas 1 foot or less. Wave Detail: SW 1 foot at 4 seconds and E 1 foot at 8 seconds. .TUE...W winds around 5 kt, becoming SW in the afternoon. Seas 1 foot or less. Wave Detail: W 1 foot at 3 seconds and S 1 foot at 7 seconds. .TUE NIGHT...SW winds around 5 kt. Seas 1 foot or less. Wave Detail: SW 1 foot at 4 seconds and SE 1 foot at 8 seconds. .WED...SW winds around 5 kt, increasing to 5 to 10 kt in the afternoon. Seas 1 foot or less. Wave Detail: SW 1 foot at 2 seconds and S 1 foot at 7 seconds. .WED NIGHT THROUGH THU NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Wave Detail: SW 2 ft at 4 seconds and SE 1 foot at 8 seconds. .FRI...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 4 ft. Wave Detail: SW 3 ft at 4 seconds and SE 1 foot at 7 seconds. .FRI NIGHT...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 4 ft. A chance of showers. .SAT...N winds 5 to 10 kt. Seas 2 to 3 ft. A chance of showers. .SAT NIGHT...N winds 5 to 10 kt. Seas around 2 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ235-111800- Rhode Island Sound- 104 AM EDT Tue Jun 11 2024 .REST OF TONIGHT...NW winds 5 to 10 kt. Seas around 2 ft. Wave Detail: SE 2 ft at 7 seconds and W 1 foot at 3 seconds. .TUE...NW winds 5 to 10 kt, becoming SW in the afternoon. Seas around 2 ft. Wave Detail: S 2 ft at 7 seconds and SE 2 ft at 8 seconds. .TUE NIGHT...SW winds around 5 kt. Seas around 2 ft. Wave Detail: S 2 ft at 7 seconds. .WED...SW winds 5 to 10 kt. Seas around 2 ft. Wave Detail: S 2 ft at 7 seconds and SW 1 foot at 2 seconds. .WED NIGHT THROUGH THU NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. Wave Detail: SW 4 ft at 4 seconds and SE 2 ft at 7 seconds. .FRI...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to 4 ft. Wave Detail: S 4 ft at 6 seconds. .FRI NIGHT...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to 4 ft. A chance of showers. .SAT...N winds 5 to 10 kt. Seas 2 to 4 ft. A chance of showers. .SAT NIGHT...N 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. $$ ANZ237-111800- Block Island Sound- 104 AM EDT Tue Jun 11 2024 .REST OF TONIGHT...NW winds 5 to 10 kt. Seas around 2 ft. Wave Detail: S 2 ft at 7 seconds and W 1 foot at 3 seconds. .TUE...NW winds 5 to 10 kt, becoming SW in the afternoon. Seas around 2 ft. Wave Detail: SE 2 ft at 7 seconds and W 1 foot at 3 seconds. .TUE NIGHT...SW winds around 5 kt. Seas around 2 ft. Wave Detail: S 2 ft at 7 seconds and W 1 foot at 2 seconds. .WED...W winds around 5 kt, becoming SW in the afternoon. Seas around 2 ft. Wave Detail: S 2 ft at 7 seconds and SE 2 ft at 8 seconds. .WED NIGHT THROUGH THU NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Wave Detail: S 3 ft at 7 seconds and SW 1 foot at 3 seconds. .FRI...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 4 ft. Wave Detail: SW 3 ft at 4 seconds and SE 2 ft at 7 seconds. .FRI NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 4 ft. A chance of showers. .SAT...N winds 5 to 10 kt. Seas 2 to 3 ft. A chance of showers. .SAT NIGHT...NE winds 5 to 10 kt. Seas 2 to 3 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ230-111800- Boston Harbor- 104 AM EDT Tue Jun 11 2024 .REST OF TONIGHT...W winds 5 to 10 kt. Waves 1 foot or less. .TUE...W winds around 5 kt, becoming SE in the afternoon. Waves 1 foot or less. .TUE NIGHT...SE winds around 5 kt, becoming SW after midnight. Waves 1 foot or less. .WED...NW winds around 5 kt, becoming SE 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 around 2 ft. .FRI AND FRI NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Waves around 2 ft. A chance of showers. .SAT AND SAT NIGHT...N winds 5 to 10 kt. 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. $$ ANZ236-111800- Narragansett Bay- 104 AM EDT Tue Jun 11 2024 .REST OF TONIGHT...NW winds around 5 kt. Waves 1 foot or less. .TUE...NW winds around 5 kt, becoming S in the afternoon. Waves 1 foot or less, then around 2 ft in the afternoon. .TUE NIGHT...SW winds around 5 kt. Waves around 2 ft in the evening, then 1 foot or less. .WED...W winds around 5 kt, becoming SW in the afternoon. Waves 1 foot or less. .WED NIGHT THROUGH THU NIGHT...SW winds 10 to 15 kt. Waves 2 to 3 ft. .FRI...SW winds 10 to 15 kt with gusts up to 20 kt. Waves 2 to 4 ft. .FRI NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Waves 2 to 4 ft. A chance of showers. .SAT...N winds 5 to 10 kt. Waves 2 to 3 ft. A chance of showers. .SAT NIGHT...N winds 5 to 10 kt. Waves 2 to 3 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ 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