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Coastal Waters Forecast
Issued by NWS Boston, MA
Issued by NWS Boston, MA
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000 FZUS51 KBOX 190502 CWFBOX Coastal Waters Forecast for Massachusetts and Rhode Island National Weather Service Boston/Norton MA 101 AM EDT Fri Apr 19 2024 Coastal waters from the Merrimack River MA to Watch Hill RI out to 25 NM ANZ200-191800- 101 AM EDT Fri Apr 19 2024 .Synopsis for Massachusetts and Rhode Island coastal waters... Ridge of high pressure builds across the region tonight and Friday. A cold front moves through late Friday and early Saturday. High pressure ridge will develop Saturday to our south and remain there into early next week. $$ ANZ250-191800- Coastal waters east of Ipswich Bay and the Stellwagen Bank National Marine Sanctuary- 101 AM EDT Fri Apr 19 2024 .REST OF TONIGHT...NE winds around 5 kt. Seas 2 to 3 ft. Wave Detail: E 2 ft at 4 seconds and E 2 ft at 11 seconds. .FRI...E winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: E 2 ft at 5 seconds and E 2 ft at 11 seconds. .FRI NIGHT...S winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. Wave Detail: SE 3 ft at 4 seconds and E 2 ft at 11 seconds. Patchy fog after midnight. Showers likely after midnight. .SAT...SW winds 10 to 15 kt, diminishing to 5 to 10 kt in the afternoon. Seas 2 to 3 ft. Wave Detail: S 3 ft at 4 seconds and E 1 ft at 4 seconds. Showers, mainly in the morning. Patchy fog in the morning with vsby 1 to 3 NM. .SAT NIGHT...W winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. Wave Detail: W 3 ft at 4 seconds and SE 2 ft at 5 seconds. .SUN AND SUN NIGHT...W winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. Wave Detail: W 3 ft at 4 seconds and SE 2 ft at 6 seconds. .MON THROUGH TUE...S winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 4 ft. .TUE NIGHT...S winds around 15 kt with gusts up to 25 kt. Seas 3 to 5 ft. A chance of showers. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ251-191800- Massachusetts Bay and Ipswich Bay- 101 AM EDT Fri Apr 19 2024 .REST OF TONIGHT...NE winds around 5 kt. Seas around 2 ft. Wave Detail: E 2 ft at 4 seconds and SE 1 ft at 7 seconds. .FRI...E winds 5 to 10 kt, becoming SE 10 to 15 kt in the afternoon. Seas around 2 ft. Wave Detail: SE 2 ft at 5 seconds and E 1 ft at 11 seconds. .FRI NIGHT...S winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Wave Detail: S 3 ft at 4 seconds and SE 2 ft at 4 seconds. Patchy fog after midnight. Showers likely after midnight. .SAT...SW winds 5 to 10 kt. Seas around 2 ft. Wave Detail: S 2 ft at 4 seconds and E 1 ft at 5 seconds. Showers, mainly in the morning. Patchy fog in the morning with vsby 1 to 3 NM. .SAT NIGHT...W winds 15 to 20 kt. Seas around 2 ft. Wave Detail: W 2 ft at 3 seconds and SE 1 ft at 5 seconds. .SUN AND SUN NIGHT...W winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft. Wave Detail: W 2 ft at 3 seconds and SE 1 ft at 6 seconds. .MON THROUGH TUE...S winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 3 ft. .TUE NIGHT...S winds around 15 kt with gusts up to 25 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. $$ ANZ231-191800- Cape Cod Bay- 101 AM EDT Fri Apr 19 2024 .REST OF TONIGHT...NE winds around 5 kt. Seas around 2 ft. Wave Detail: E 1 ft at 3 seconds and SE 1 ft at 6 seconds. .FRI...E winds 5 to 10 kt. Seas around 2 ft. Wave Detail: SE 2 ft at 6 seconds and E 1 ft at 3 seconds. .FRI NIGHT...S winds around 10 kt. Gusts up to 20 kt in the evening. Seas around 2 ft. Wave Detail: SE 1 ft at 3 seconds and S 1 ft at 4 seconds. Patchy fog after midnight. Showers likely after midnight. .SAT...SW winds 5 to 10 kt. Seas around 2 ft in the morning, then 1 foot or less. Wave Detail: S 2 ft at 4 seconds and E 1 ft at 4 seconds, becoming W 1 ft at 2 seconds and SE 1 ft at 5 seconds. Patchy fog. Showers. Vsby 1 to 3 NM in the morning. .SAT NIGHT...W winds 5 to 10 kt. Seas around 2 ft. Wave Detail: W 2 ft at 3 seconds and SE 1 ft at 6 seconds. .SUN AND SUN NIGHT...W winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft. Wave Detail: NW 2 ft at 4 seconds and SE 1 ft at 6 seconds. .MON THROUGH TUE...S winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft. .TUE NIGHT...S winds around 15 kt with gusts up to 25 kt. Seas 2 to 4 ft. A chance of showers. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ254-191800- Coastal waters from Provincetown MA to Chatham MA to Nantucket MA out 20 nm- 101 AM EDT Fri Apr 19 2024 .REST OF TONIGHT...NE winds 5 to 10 kt. Seas 3 to 4 ft. Wave Detail: E 2 ft at 5 seconds and E 2 ft at 11 seconds. .FRI...E winds around 10 kt. Seas 3 to 4 ft. Wave Detail: E 2 ft at 5 seconds and E 2 ft at 11 seconds. .FRI NIGHT...SE winds around 10 kt. Seas 3 to 4 ft. Wave Detail: SE 4 ft at 5 seconds and E 2 ft at 11 seconds. A chance of showers after midnight. .SAT...S winds 10 to 15 kt, becoming SW 5 to 10 kt in the afternoon. Seas 2 to 3 ft. Wave Detail: S 3 ft at 4 seconds and E 2 ft at 11 seconds. Patchy fog. Showers. Vsby 1 to 3 NM. .SAT NIGHT...W winds 10 to 15 kt. Gusts up to 20 kt after midnight. Seas 2 to 4 ft. Wave Detail: NW 3 ft at 4 seconds and SE 3 ft at 6 seconds. A chance of showers in the evening. .SUN AND SUN NIGHT...W winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 4 ft. Wave Detail: NW 3 ft at 4 seconds and SE 2 ft at 6 seconds. .MON THROUGH TUE NIGHT...S winds 10 to 15 kt with gusts up to 25 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. $$ ANZ255-191800- Coastal Waters extending out to 25 nm South of Marthas Vineyard and Nantucket- 101 AM EDT Fri Apr 19 2024 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS EVENING... .REST OF TONIGHT...NE winds 10 to 15 kt. Seas 3 to 5 ft. Wave Detail: SE 3 ft at 7 seconds and E 2 ft at 4 seconds. .FRI...E winds 10 to 15 kt. Gusts up to 20 kt in the morning. Seas 3 to 5 ft. Wave Detail: SE 4 ft at 7 seconds and E 1 ft at 4 seconds. .FRI NIGHT...SE winds around 10 kt. Gusts up to 20 kt in the evening. Seas 3 to 5 ft. Wave Detail: SE 4 ft at 7 seconds and E 1 ft at 4 seconds. Patchy fog after midnight. A chance of showers after midnight. .SAT...S winds around 10 kt, becoming W in the afternoon. Seas 2 to 4 ft. Wave Detail: SE 4 ft at 6 seconds and W 2 ft at 4 seconds. Patchy fog. Showers likely in the morning. A chance of showers in the afternoon. Vsby 1 to 3 NM. .SAT NIGHT...W winds 10 to 15 kt, becoming NW 15 to 20 kt after midnight. Seas 2 to 4 ft. Wave Detail: W 3 ft at 5 seconds and SE 3 ft at 7 seconds. .SUN AND SUN NIGHT...W winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 4 ft. Wave Detail: W 3 ft at 5 seconds and SE 2 ft at 6 seconds. .MON THROUGH TUE NIGHT...S winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 4 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ256-191800- Coastal Waters from Montauk NY to Marthas Vineyard extending out to 20 nm South of Block Island- 101 AM EDT Fri Apr 19 2024 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS EVENING... .REST OF TONIGHT...NE winds 10 to 15 kt with gusts up to 20 kt. Seas 4 to 5 ft. Wave Detail: SE 4 ft at 7 seconds and NE 2 ft at 4 seconds. .FRI...E winds 10 to 15 kt. Gusts up to 20 kt in the afternoon. Seas 4 to 5 ft. Wave Detail: SE 4 ft at 7 seconds and NE 1 ft at 3 seconds. .FRI NIGHT...SE winds around 10 kt. Gusts up to 20 kt in the evening. Seas 3 to 5 ft. Wave Detail: SE 4 ft at 7 seconds and E 1 ft at 11 seconds. Patchy fog after midnight. Showers likely after midnight. .SAT...SW winds 5 to 10 kt. Seas 3 to 4 ft. Wave Detail: SE 3 ft at 7 seconds and W 2 ft at 4 seconds. Showers, mainly in the morning. Patchy fog in the morning with vsby 1 to 3 NM. .SAT NIGHT...W winds 10 to 15 kt with gusts up to 20 kt. Seas around 3 ft. Wave Detail: W 3 ft at 4 seconds and SE 3 ft at 7 seconds. .SUN AND SUN NIGHT...W winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 4 ft. Wave Detail: NW 3 ft at 4 seconds and SE 2 ft at 7 seconds. .MON THROUGH TUE...S winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. .TUE NIGHT...S winds 10 to 15 kt with gusts up to 25 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. $$ ANZ232-191800- Nantucket Sound- 101 AM EDT Fri Apr 19 2024 .REST OF TONIGHT...NE winds around 10 kt. Seas 2 to 3 ft. Wave Detail: E 2 ft at 3 seconds and SE 1 ft at 6 seconds. .FRI...E winds around 10 kt. Seas 2 to 3 ft. Wave Detail: SE 2 ft at 5 seconds and E 1 ft at 12 seconds. .FRI NIGHT...SE winds around 10 kt. Seas 2 to 3 ft. Wave Detail: S 2 ft at 4 seconds and E 2 ft at 4 seconds. Patchy fog after midnight. A chance of showers after midnight. .SAT...S winds around 10 kt, becoming W in the afternoon. Seas around 2 ft. Wave Detail: SW 2 ft at 4 seconds and E 1 ft at 5 seconds. Patchy fog. Showers. Vsby 1 to 3 NM. .SAT NIGHT...W winds 10 to 15 kt. Seas around 2 ft. Wave Detail: W 2 ft at 4 seconds and SE 1 ft at 6 seconds. .SUN AND SUN NIGHT...W winds 15 to 20 kt with gusts up to 25 kt. Seas around 2 ft. Wave Detail: W 2 ft at 3 seconds and SE 1 ft at 6 seconds. .MON THROUGH TUE NIGHT...S winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 3 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ233-191800- Vineyard Sound- 101 AM EDT Fri Apr 19 2024 .REST OF TONIGHT...NE winds around 10 kt. Seas 2 to 3 ft. Wave Detail: SE 2 ft at 7 seconds and E 1 ft at 3 seconds. .FRI...E winds around 10 kt. Seas 2 to 3 ft. Wave Detail: SE 2 ft at 7 seconds and E 1 ft at 2 seconds. .FRI NIGHT...S winds around 10 kt. Seas around 2 ft. Wave Detail: S 2 ft at 6 seconds and S 1 ft at 3 seconds. Patchy fog after midnight. Showers likely after midnight. .SAT...SW winds 5 to 10 kt. Seas around 2 ft in the morning, then 1 foot or less. Wave Detail: SE 2 ft at 6 seconds and SW 1 ft at 3 seconds, becoming SW 1 ft at 4 seconds and SE 1 ft at 6 seconds. Patchy fog. Showers. Vsby 1 to 3 NM in the morning. .SAT NIGHT...W winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft. Wave Detail: W 2 ft at 4 seconds and S 2 ft at 7 seconds. .SUN AND SUN NIGHT...W winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 4 ft. Wave Detail: W 2 ft at 4 seconds and S 1 ft at 7 seconds. .MON THROUGH TUE...S winds 10 to 15 kt with gusts up to 20 kt. Seas 1 foot or less. .TUE NIGHT...S winds 10 to 15 kt with gusts up to 25 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. $$ ANZ234-191800- Buzzards Bay- 101 AM EDT Fri Apr 19 2024 .REST OF TONIGHT...NE winds 5 to 10 kt. Seas around 2 ft. Wave Detail: SE 2 ft at 7 seconds and E 1 ft at 2 seconds. .FRI...E winds 5 to 10 kt, becoming SE in the afternoon. Seas around 2 ft. Wave Detail: SE 2 ft at 7 seconds and E 1 ft at 2 seconds. .FRI NIGHT...S winds around 10 kt. Seas around 2 ft. Wave Detail: S 2 ft at 4 seconds and SE 1 ft at 3 seconds. Patchy fog after midnight. Showers likely after midnight. .SAT...SW winds 5 to 10 kt. Seas around 2 ft in the morning, then 1 foot or less. Wave Detail: SE 2 ft at 6 seconds and SW 1 ft at 3 seconds, becoming SW 1 ft at 3 seconds and SE 1 ft at 6 seconds. Showers, mainly in the morning. Patchy fog in the morning with vsby 1 to 3 NM. .SAT NIGHT...W winds 10 to 15 kt. Seas around 2 ft. Wave Detail: SW 2 ft at 5 seconds and E 1 ft at 5 seconds. .SUN AND SUN NIGHT...W winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 4 ft. Wave Detail: W 2 ft at 4 seconds and SE 1 ft at 6 seconds. .MON THROUGH TUE...S winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft. .TUE NIGHT...S winds around 15 kt with gusts up to 20 kt. Seas around 2 ft. A chance of showers. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ235-191800- Rhode Island Sound- 101 AM EDT Fri Apr 19 2024 .REST OF TONIGHT...NE winds around 10 kt. Seas 3 to 4 ft. Wave Detail: SE 4 ft at 7 seconds and NE 1 ft at 4 seconds. .FRI...E winds around 10 kt. Seas 3 to 4 ft. Wave Detail: SE 3 ft at 7 seconds and NE 1 ft at 3 seconds. .FRI NIGHT...SE winds around 10 kt. Gusts up to 20 kt in the evening. Seas 2 to 4 ft. Wave Detail: SE 4 ft at 7 seconds and E 1 ft at 3 seconds. Patchy fog after midnight. Showers likely after midnight. .SAT...SW winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: SE 3 ft at 7 seconds and SW 2 ft at 4 seconds. Showers, mainly in the morning. Patchy fog in the morning with vsby 1 to 3 NM. .SAT NIGHT...W winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Wave Detail: W 3 ft at 4 seconds and SE 2 ft at 7 seconds. .SUN AND SUN NIGHT...W winds 20 to 25 kt. Seas 2 to 3 ft. Wave Detail: W 2 ft at 4 seconds and SE 2 ft at 7 seconds. .MON THROUGH TUE...S winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft. .TUE NIGHT...S winds around 15 kt with gusts up to 25 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. $$ ANZ237-191800- Block Island Sound- 101 AM EDT Fri Apr 19 2024 .REST OF TONIGHT...NE winds around 10 kt. Seas 3 to 4 ft. Wave Detail: SE 4 ft at 7 seconds and E 1 ft at 4 seconds. .FRI...E winds around 10 kt. Seas 3 to 4 ft. Wave Detail: SE 4 ft at 7 seconds and E 1 ft at 4 seconds. .FRI NIGHT...S winds 5 to 10 kt. Gusts up to 20 kt in the evening. Seas 2 to 4 ft. Wave Detail: SE 3 ft at 7 seconds and E 1 ft at 4 seconds. Patchy fog after midnight. Showers likely after midnight with vsby 1 to 3 NM. .SAT...SW winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: SE 3 ft at 7 seconds and W 2 ft at 3 seconds. Showers, mainly in the morning. Patchy fog in the morning with vsby 1 to 3 NM. .SAT NIGHT...NW winds around 10 kt. Seas 2 to 3 ft. Wave Detail: W 2 ft at 4 seconds and SE 2 ft at 7 seconds. .SUN AND SUN NIGHT...W winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 3 ft. Wave Detail: W 2 ft at 3 seconds and SE 2 ft at 7 seconds. .MON THROUGH TUE...SE winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft. .TUE NIGHT...S winds around 15 kt with gusts up to 25 kt. Seas 2 to 3 ft. A chance of showers. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ230-191800- Boston Harbor- 101 AM EDT Fri Apr 19 2024 .REST OF TONIGHT...NE winds around 5 kt. Waves 1 foot or less. .FRI...E winds around 5 kt, becoming SE 10 to 15 kt with gusts up to 20 kt in the afternoon. Waves 1 foot or less, then around 2 ft in the afternoon. .FRI NIGHT...S winds around 10 kt. Gusts up to 20 kt in the evening. Waves around 2 ft in the evening, then 1 foot or less. Showers after midnight. .SAT...SW winds 5 to 10 kt. Waves 1 foot or less. Showers, mainly in the morning. Patchy fog in the morning with vsby 1 to 3 NM. .SAT NIGHT THROUGH SUN NIGHT...W winds 15 to 20 kt with gusts up to 25 kt. Waves around 2 ft. .MON THROUGH TUE...S winds 10 to 15 kt with gusts up to 20 kt. Waves around 2 ft. .TUE NIGHT...S winds around 15 kt with gusts up to 20 kt. Waves around 2 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. $$ ANZ236-191800- Narragansett Bay- 101 AM EDT Fri Apr 19 2024 .REST OF TONIGHT...NE winds 5 to 10 kt. Waves 2 to 3 ft. .FRI...E winds 5 to 10 kt, becoming SE in the afternoon. Waves around 2 ft. .FRI NIGHT...S winds 5 to 10 kt. Waves around 2 ft. Patchy fog after midnight. Showers likely after midnight. .SAT...SW winds 5 to 10 kt. Waves around 2 ft. Showers, mainly in the morning. Patchy fog in the morning with vsby 1 to 3 NM. .SAT NIGHT...W winds 10 to 15 kt. Waves around 2 ft. .SUN AND SUN NIGHT...W winds 10 to 15 kt with gusts up to 25 kt. Waves 2 to 3 ft. .MON THROUGH TUE...S winds 10 to 15 kt with gusts up to 20 kt. Waves around 2 ft. .TUE NIGHT...S winds around 15 kt with gusts up to 20 kt. Waves 2 to 3 ft. A chance of showers. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ 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
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