Coastal Waters Forecast
Issued by NWS Boston, MA
Issued by NWS Boston, MA
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489 FZUS51 KBOX 170726 CWFBOX Coastal Waters Forecast for Massachusetts and Rhode Island National Weather Service Boston/Norton MA 325 AM EDT Fri May 17 2024 Coastal waters from the Merrimack River MA to Watch Hill RI out to 25 NM ANZ200-172000- 325 AM EDT Fri May 17 2024 .Synopsis for Massachusetts and Rhode Island coastal waters... Low pres S of New England will move slowly SE through tonight, bringing a period of enhanced E to ENE winds to the waters. High pres then builds in from Atlc Canada into srn New England Fri into this weekend, then should remain in place into early next week. $$ ANZ250-172000- Coastal waters east of Ipswich Bay and the Stellwagen Bank National Marine Sanctuary- 325 AM EDT Fri May 17 2024 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH SATURDAY MORNING... .REST OF TONIGHT...NE winds 10 to 15 kt. Seas 3 to 5 ft. Wave Detail: SE 5 ft at 9 seconds and NE 1 foot at 4 seconds. .FRI...NE winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 5 ft. Wave Detail: SE 5 ft at 9 seconds and NE 1 foot at 4 seconds. .FRI NIGHT...NE winds 10 to 15 kt with gusts up to 20 kt. Seas 4 to 6 ft. Wave Detail: E 6 ft at 9 seconds and NE 1 foot at 3 seconds. A chance of showers. Vsby 1 to 3 NM after midnight. .SAT...NE winds 10 to 15 kt with gusts up to 20 kt. Seas 5 to 6 ft. Wave Detail: E 6 ft at 9 seconds. A chance of showers. Vsby 1 NM or less in the morning. .SAT NIGHT...NE winds 10 to 15 kt. Seas 4 to 6 ft. Wave Detail: E 5 ft at 8 seconds. A chance of showers in the evening. .SUN AND SUN NIGHT...NE winds 5 to 10 kt. Seas 4 to 5 ft. Wave Detail: E 5 ft at 8 seconds. .MON THROUGH TUE NIGHT...S winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 5 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ251-172000- Massachusetts Bay and Ipswich Bay- 325 AM EDT Fri May 17 2024 .REST OF TONIGHT...NE winds around 10 kt. Seas 2 to 3 ft. Wave Detail: E 3 ft at 9 seconds and NE 2 ft at 5 seconds. .FRI...NE winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: E 3 ft at 9 seconds and NE 2 ft at 4 seconds. .FRI NIGHT...NE winds 10 to 15 kt. Seas 2 to 4 ft. Wave Detail: E 4 ft at 9 seconds and NE 1 foot at 3 seconds. A chance of showers after midnight. .SAT...NE winds 10 to 15 kt. Seas 3 to 5 ft. Wave Detail: E 5 ft at 9 seconds and NE 1 foot at 3 seconds. A chance of showers. .SAT NIGHT...N winds around 10 kt. Seas 3 to 5 ft. Wave Detail: E 5 ft at 8 seconds and NE 1 foot at 3 seconds. A chance of showers in the evening. .SUN AND SUN NIGHT...NE winds 5 to 10 kt. Seas 3 to 4 ft. Wave Detail: E 4 ft at 8 seconds. .MON THROUGH TUE 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. $$ ANZ231-172000- Cape Cod Bay- 325 AM EDT Fri May 17 2024 .REST OF TONIGHT...NE winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: SE 3 ft at 9 seconds and NE 2 ft at 3 seconds. .FRI...NE winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Wave Detail: E 3 ft at 9 seconds and NE 2 ft at 3 seconds. .FRI NIGHT...NE winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. Wave Detail: E 4 ft at 9 seconds and NE 2 ft at 3 seconds. A chance of showers. .SAT...NE winds 10 to 15 kt. Gusts up to 20 kt in the morning. Seas 2 to 4 ft. Wave Detail: E 4 ft at 9 seconds and NE 1 foot at 3 seconds. A chance of showers. Vsby 1 NM or less in the morning. .SAT NIGHT THROUGH SUN NIGHT...NE winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. Wave Detail: E 3 ft at 8 seconds and NE 1 foot at 3 seconds. .MON THROUGH TUE NIGHT...S winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: E 3 ft at 8 seconds and NE 1 foot at 3 seconds. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ254-172000- Coastal waters from Provincetown MA to Chatham MA to Nantucket MA out 20 nm- 325 AM EDT Fri May 17 2024 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH SATURDAY MORNING... .REST OF TONIGHT...NE winds 15 to 20 kt with gusts up to 25 kt. Seas 5 to 7 ft. Wave Detail: SE 7 ft at 9 seconds and NE 1 foot at 4 seconds. A chance of showers. Vsby 1 NM or less. .FRI...NE winds 15 to 20 kt with gusts up to 25 kt. Seas 5 to 7 ft. Wave Detail: SE 7 ft at 9 seconds and NE 1 foot at 3 seconds. A chance of showers in the morning with vsby 1 NM or less. .FRI NIGHT...NE winds 15 to 20 kt with gusts up to 25 kt. Seas 5 to 8 ft. Wave Detail: E 7 ft at 9 seconds and NE 1 foot at 3 seconds. A chance of showers. Vsby 1 NM or less after midnight. .SAT...NE winds 10 to 15 kt with gusts up to 20 kt. Seas 5 to 8 ft. Wave Detail: E 7 ft at 9 seconds and NE 1 foot at 2 seconds. A chance of showers in the morning with vsby 1 NM or less. .SAT NIGHT THROUGH SUN NIGHT...NE winds 10 to 15 kt with gusts up to 20 kt. Seas 4 to 6 ft. Wave Detail: E 6 ft at 8 seconds. .MON THROUGH TUE NIGHT...S winds 5 to 10 kt. Seas 3 to 5 ft. Wave Detail: E 5 ft at 8 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. $$ ANZ255-172000- Coastal Waters extending out to 25 nm South of Marthas Vineyard and Nantucket- 325 AM EDT Fri May 17 2024 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH SATURDAY MORNING... .REST OF TONIGHT...NE winds around 20 kt with gusts up to 25 kt. Seas 5 to 8 ft. Wave Detail: E 7 ft at 9 seconds and NE 2 ft at 4 seconds. A chance of showers. Vsby 1 NM or less. .FRI...NE winds around 20 kt with gusts up to 30 kt. Seas 5 to 8 ft. Wave Detail: E 7 ft at 9 seconds and NE 2 ft at 4 seconds. A chance of showers in the morning with vsby 1 NM or less. .FRI NIGHT...NE winds 15 to 20 kt with gusts up to 25 kt. Seas 5 to 7 ft. Wave Detail: E 6 ft at 8 seconds and NE 2 ft at 4 seconds. A chance of showers. Vsby 1 NM or less after midnight. .SAT...NE winds around 15 kt with gusts up to 20 kt. Seas 5 to 7 ft. Wave Detail: E 6 ft at 9 seconds and NE 2 ft at 4 seconds. A chance of showers in the morning with vsby 1 NM or less. .SAT NIGHT THROUGH SUN NIGHT...NE winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 5 ft. Wave Detail: E 5 ft at 8 seconds and NE 2 ft at 4 seconds. .MON...NE winds 10 to 15 kt. Seas 3 to 5 ft. Wave Detail: E 4 ft at 8 seconds and NE 2 ft at 4 seconds. .MON NIGHT THROUGH TUE NIGHT...S winds around 10 kt. Seas 2 to 4 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ256-172000- Coastal Waters from Montauk NY to Marthas Vineyard extending out to 20 nm South of Block Island- 325 AM EDT Fri May 17 2024 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH SATURDAY MORNING... .REST OF TONIGHT...NE winds 15 to 20 kt with gusts up to 25 kt. Seas 5 to 7 ft. Wave Detail: E 7 ft at 9 seconds and NE 2 ft at 4 seconds. A slight chance of showers. Vsby 1 NM or less. .FRI...NE winds 15 to 20 kt with gusts up to 25 kt. Seas 5 to 7 ft. Wave Detail: E 7 ft at 8 seconds and NE 3 ft at 4 seconds. .FRI NIGHT...NE winds around 15 kt with gusts up to 20 kt. Seas 4 to 6 ft. Wave Detail: E 6 ft at 9 seconds and NE 2 ft at 4 seconds. .SAT...NE winds 10 to 15 kt. Gusts up to 20 kt in the morning. Seas 4 to 6 ft. Wave Detail: E 5 ft at 9 seconds and N 1 foot at 4 seconds. .SAT NIGHT THROUGH SUN NIGHT...NE winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 4 ft. Wave Detail: E 4 ft at 9 seconds and NE 2 ft at 4 seconds. .MON THROUGH TUE NIGHT...S winds 5 to 10 kt. Seas 2 to 4 ft. Wave Detail: E 3 ft at 8 seconds and S 2 ft at 4 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. $$ ANZ232-172000- Nantucket Sound- 325 AM EDT Fri May 17 2024 .REST OF TONIGHT...NE winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to 5 ft. Wave Detail: NE 3 ft at 4 seconds and SE 3 ft at 9 seconds. A slight chance of showers. Vsby 1 NM or less. .FRI...NE winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to 5 ft. Wave Detail: NE 3 ft at 4 seconds and SE 3 ft at 8 seconds. .FRI NIGHT...NE winds 15 to 20 kt, diminishing to 10 to 15 kt after midnight. Gusts up to 25 kt. Seas 3 to 5 ft. Wave Detail: E 3 ft at 8 seconds and NE 2 ft at 4 seconds. A chance of showers. .SAT...NE winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 5 ft. Wave Detail: E 3 ft at 9 seconds and NE 2 ft at 3 seconds. A chance of showers in the morning with vsby 1 NM or less. .SAT NIGHT THROUGH SUN NIGHT...NE winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. Wave Detail: E 3 ft at 9 seconds and NE 2 ft at 3 seconds. .MON THROUGH TUE NIGHT...SW winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: NE 2 ft at 3 seconds and E 2 ft at 8 seconds. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ233-172000- Vineyard Sound- 325 AM EDT Fri May 17 2024 .REST OF TONIGHT...NE winds around 15 kt with gusts up to 20 kt. Seas around 3 ft. Wave Detail: NE 2 ft at 3 seconds and SE 2 ft at 9 seconds. A slight chance of showers. Vsby 1 to 3 NM. .FRI...NE winds around 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Wave Detail: NE 2 ft at 3 seconds and SE 2 ft at 8 seconds. .FRI NIGHT...NE winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Wave Detail: NE 2 ft at 3 seconds and SE 2 ft at 8 seconds. A chance of showers after midnight. .SAT...NE winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Wave Detail: SE 2 ft at 8 seconds and NE 1 foot at 3 seconds. .SAT NIGHT THROUGH SUN NIGHT...NE winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft. Wave Detail: SE 2 ft at 8 seconds and NE 1 foot at 3 seconds. .MON THROUGH TUE NIGHT...SW winds 5 to 10 kt. Seas around 2 ft. Wave Detail: NE 1 foot at 3 seconds and E 1 foot at 9 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. $$ ANZ234-172000- Buzzards Bay- 325 AM EDT Fri May 17 2024 .REST OF TONIGHT...NE winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Wave Detail: NE 2 ft at 3 seconds and SE 2 ft at 8 seconds. A slight chance of showers. Vsby 1 NM or less. .FRI...NE winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft. Wave Detail: NE 2 ft at 3 seconds and SE 2 ft at 8 seconds. .FRI NIGHT...NE winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft. Wave Detail: NE 2 ft at 3 seconds and SE 2 ft at 8 seconds. A chance of showers after midnight. .SAT...NE winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft. Wave Detail: SE 2 ft at 8 seconds and NE 1 foot at 3 seconds. .SAT NIGHT THROUGH SUN NIGHT...NE winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft. Wave Detail: SE 2 ft at 8 seconds and NE 1 foot at 3 seconds. .MON THROUGH TUE NIGHT...SW winds 5 to 10 kt. Seas around 2 ft. Wave Detail: NE 1 foot at 2 seconds and E 1 foot at 9 seconds. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ235-172000- Rhode Island Sound- 325 AM EDT Fri May 17 2024 .REST OF TONIGHT...NE winds around 15 kt with gusts up to 25 kt. Seas 3 to 5 ft. Wave Detail: SE 5 ft at 9 seconds and NE 2 ft at 4 seconds. A slight chance of showers. Vsby 1 to 3 NM. .FRI...NE winds around 15 kt with gusts up to 25 kt. Seas 3 to 5 ft. Wave Detail: SE 5 ft at 9 seconds and NE 3 ft at 4 seconds. .FRI NIGHT...NE winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. Wave Detail: SE 4 ft at 9 seconds and NE 2 ft at 4 seconds. .SAT...NE winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Wave Detail: SE 3 ft at 9 seconds and NE 2 ft at 3 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 NE 2 ft at 3 seconds. .MON THROUGH TUE NIGHT...SW winds 5 to 10 kt. Seas around 2 ft. Wave Detail: NE 2 ft at 4 seconds and SE 2 ft at 8 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. $$ ANZ237-172000- Block Island Sound- 325 AM EDT Fri May 17 2024 .REST OF TONIGHT...NE winds around 15 kt with gusts up to 25 kt. Seas 3 to 5 ft. Wave Detail: SE 5 ft at 9 seconds and NE 2 ft at 4 seconds. .FRI...NE winds 10 to 15 kt with gusts up to 25 kt. Seas 3 to 5 ft. Wave Detail: SE 5 ft at 9 seconds and NE 2 ft at 4 seconds. .FRI NIGHT...NE winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. Wave Detail: E 4 ft at 9 seconds and NE 1 foot at 4 seconds. .SAT...NE winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: E 3 ft at 9 seconds and NE 1 foot at 3 seconds. .SAT NIGHT THROUGH SUN NIGHT...NE winds around 10 kt. Seas 2 to 3 ft. Wave Detail: E 3 ft at 9 seconds and NE 2 ft at 4 seconds. .MON THROUGH TUE NIGHT...S winds 5 to 10 kt. Seas around 2 ft. Wave Detail: E 2 ft at 5 seconds and SE 2 ft at 8 seconds. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ230-172000- Boston Harbor- 325 AM EDT Fri May 17 2024 .REST OF TONIGHT...NE winds around 10 kt. Waves 1 foot or less. .FRI...NE winds 10 to 15 kt. Waves around 2 ft. .FRI NIGHT...NE winds around 10 kt. Waves around 2 ft in the evening, then 1 foot or less. A chance of showers after midnight. .SAT...NE winds around 10 kt. Waves 2 to 3 ft. A chance of showers. .SAT NIGHT...NE winds 5 to 10 kt. Waves 2 to 3 ft in the evening, then 1 foot or less. At the outer harbor entrance, waves 2 to 4 ft. A chance of showers in the evening. .SUN AND SUN NIGHT...NE winds 5 to 10 kt. Waves 2 to 3 ft. .MON THROUGH TUE NIGHT...S winds 5 to 10 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. $$ ANZ236-172000- Narragansett Bay- 325 AM EDT Fri May 17 2024 .REST OF TONIGHT...NE winds around 10 kt with gusts up to 20 kt. Waves 2 to 3 ft. .FRI...NE winds 10 to 15 kt with gusts up to 20 kt. Waves 2 to 3 ft. .FRI NIGHT...NE winds around 10 kt. Waves around 2 ft. .SAT...NE winds around 10 kt. Waves around 2 ft. .SAT NIGHT THROUGH SUN NIGHT...NE winds 5 to 10 kt. Waves 2 to 3 ft. .MON THROUGH TUE NIGHT...SW winds 5 to 10 kt. Waves around 2 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ 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