Coastal Waters Forecast
Issued by NWS Boston, MA

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000 FZUS51 KBOX 150802 CWFBOX Coastal Waters Forecast for Massachusetts and Rhode Island National Weather Service Boston/Norton MA 402 AM EDT Fri Mar 15 2024 Coastal waters from the Merrimack River MA to Watch Hill RI out to 25 NM ANZ200-152100- 402 AM EDT Fri Mar 15 2024 .Synopsis for Massachusetts and Rhode Island coastal waters... Low pres moves through Fri, bringing increased winds and rain showers. High pres returns Sat. A frontal system pushes in on Sun, bringing scattered showers and gusty winds. Spotty showers possible early next week. $$ ANZ250-152100- Coastal waters east of Ipswich Bay and the Stellwagen Bank National Marine Sanctuary- 402 AM EDT Fri Mar 15 2024 ...SMALL CRAFT ADVISORY IN EFFECT FROM 2 PM EDT THIS AFTERNOON THROUGH THIS EVENING... .TODAY...SE winds 10 to 15 kt, becoming N 15 to 20 kt this afternoon. Gusts up to 25 kt. Seas 2 to 4 ft. Patchy fog. A chance of showers this morning. A slight chance of showers this afternoon. Vsby 1 NM or less. .TONIGHT...N winds 15 to 20 kt with gusts up to 25 kt, becoming NW 5 to 10 kt after midnight. Seas 3 to 4 ft. Patchy fog in the evening with vsby 1 to 3 NM. .SAT...NW winds 5 to 10 kt, becoming S 10 to 15 kt with gusts up to 20 kt in the afternoon. Seas 2 to 3 ft. .SAT NIGHT...S winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 4 ft. .SUN...SW winds 15 to 20 kt with gusts up to 30 kt. Seas 3 to 5 ft. A chance of showers. .SUN NIGHT...W winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. .MON AND MON NIGHT...W winds 10 to 15 kt, increasing to 15 to 20 kt. Gusts up to 25 kt. Seas 2 to 4 ft. .TUE AND TUE NIGHT...W winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to 5 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ251-152100- Massachusetts Bay and Ipswich Bay- 402 AM EDT Fri Mar 15 2024 ...SMALL CRAFT ADVISORY IN EFFECT FROM 11 AM EDT THIS MORNING THROUGH THIS EVENING... .TODAY...SE winds 10 to 15 kt, becoming N 15 to 20 kt this afternoon. Gusts up to 25 kt. Seas 2 to 3 ft. Patchy fog. A chance of showers, mainly this morning. Vsby 1 NM or less. .TONIGHT...N winds 10 to 15 kt with gusts up to 25 kt, becoming NW 5 to 10 kt after midnight. Seas 2 to 3 ft. Patchy fog in the evening with vsby 1 to 3 NM. .SAT...W winds around 5 kt, becoming S in the afternoon. Seas around 2 ft. .SAT NIGHT...S winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 3 ft. .SUN...SW winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 4 ft. A chance of showers. .SUN NIGHT...W winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft. .MON THROUGH TUE NIGHT...W 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. $$ ANZ231-152100- Cape Cod Bay- 402 AM EDT Fri Mar 15 2024 ...SMALL CRAFT ADVISORY IN EFFECT FROM 11 AM EDT THIS MORNING THROUGH THIS EVENING... .TODAY...S winds 10 to 15 kt, becoming NW 15 to 20 kt this afternoon. Gusts up to 30 kt. Seas 2 to 3 ft. Patchy fog. A slight chance of showers. Vsby 1 NM or less, increasing to 1 to 3 NM this afternoon. .TONIGHT...N winds 15 to 20 kt with gusts up to 25 kt, diminishing to 5 to 10 kt after midnight. Seas 2 to 3 ft. .SAT...NW winds around 5 kt, becoming S in the afternoon. Seas around 2 ft. .SAT NIGHT...S winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 4 ft. .SUN...S winds 15 to 20 kt, becoming SW 10 to 15 kt in the afternoon. Gusts up to 25 kt. Seas 2 to 4 ft. .SUN NIGHT...W winds 10 to 15 kt. Seas around 2 ft. .MON THROUGH TUE NIGHT...W winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 3 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ254-152100- Coastal waters from Provincetown MA to Chatham MA to Nantucket MA out 20 nm- 402 AM EDT Fri Mar 15 2024 ...SMALL CRAFT ADVISORY IN EFFECT FROM 2 PM EDT THIS AFTERNOON THROUGH THIS EVENING... .TODAY...S winds 10 to 15 kt, becoming W 15 to 20 kt this afternoon. Gusts up to 25 kt. Seas 3 to 5 ft. Patchy fog. A chance of showers this morning. A slight chance of showers this afternoon. Vsby 1 NM or less. .TONIGHT...N winds 15 to 20 kt, diminishing to 10 to 15 kt after midnight. Gusts up to 25 kt. Seas 3 to 5 ft. Patchy fog in the evening with vsby 1 to 3 NM. .SAT...NW winds 5 to 10 kt, becoming SW in the afternoon. Seas 2 to 4 ft. .SAT NIGHT...S winds 10 to 15 kt, increasing to 15 to 20 kt after midnight. Gusts up to 25 kt. Seas 2 to 4 ft. Patchy fog in the evening with vsby 1 to 3 NM. .SUN...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to 5 ft. .SUN NIGHT...W winds 10 to 15 kt. Gusts up to 20 kt in the evening. Seas 3 to 5 ft. .MON THROUGH TUE...W winds 15 to 20 kt with gusts up to 30 kt. Seas 3 to 5 ft. .TUE NIGHT...W winds 15 to 20 kt with gusts up to 30 kt. Seas 4 to 6 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. $$ ANZ255-152100- Coastal Waters extending out to 25 nm South of Marthas Vineyard and Nantucket- 402 AM EDT Fri Mar 15 2024 ...SMALL CRAFT ADVISORY IN EFFECT FROM 8 AM EDT THIS MORNING THROUGH THIS EVENING... .TODAY...S winds around 15 kt, becoming W this afternoon. Gusts up to 25 kt. Seas 3 to 5 ft. A chance of showers this morning. A slight chance of showers this afternoon. Patchy fog this morning with vsby 1 NM or less. .TONIGHT...N winds 15 to 20 kt, diminishing to 10 to 15 kt after midnight. Gusts up to 25 kt. Seas 4 to 6 ft. .SAT...NW winds 5 to 10 kt, becoming SW in the afternoon. Seas 2 to 4 ft. .SAT NIGHT...S winds 10 to 15 kt, increasing to 15 to 20 kt after midnight. Gusts up to 25 kt. Seas 2 to 4 ft. .SUN...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to 5 ft. .SUN NIGHT...W winds 15 to 20 kt with gusts up to 25 kt, diminishing to 10 to 15 kt after midnight. Seas 3 to 5 ft. .MON AND MON NIGHT...W winds 10 to 15 kt, increasing to 15 to 20 kt. Gusts up to 25 kt. Seas 3 to 5 ft. .TUE AND TUE NIGHT...W winds 15 to 20 kt with gusts up to 30 kt. Seas 4 to 6 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ256-152100- Coastal Waters from Montauk NY to Marthas Vineyard extending out to 20 nm South of Block Island- 402 AM EDT Fri Mar 15 2024 ...SMALL CRAFT ADVISORY IN EFFECT FROM 8 AM EDT THIS MORNING THROUGH THIS EVENING... .TODAY...SW winds around 15 kt, becoming W this afternoon. Gusts up to 25 kt. Seas 3 to 5 ft. A chance of showers this morning. A slight chance of showers this afternoon. .TONIGHT...N winds 10 to 15 kt with gusts up to 25 kt, diminishing to 5 to 10 kt after midnight. Seas 3 to 5 ft. .SAT...NW winds around 5 kt, becoming SW with gusts up to 20 kt in the afternoon. Seas 2 to 3 ft. .SAT NIGHT...SW winds 10 to 15 kt, becoming S 15 to 20 kt after midnight. Gusts up to 25 kt. Seas 2 to 4 ft. .SUN...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 4 to 5 ft. .SUN NIGHT...W winds 15 to 20 kt with gusts up to 25 kt, becoming NW 10 to 15 kt after midnight. Seas 3 to 5 ft. .MON THROUGH TUE...W winds 15 to 20 kt with gusts up to 30 kt. Seas 3 to 5 ft. .TUE NIGHT...W winds 15 to 20 kt with gusts up to 30 kt. Seas 4 to 6 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. $$ ANZ232-152100- Nantucket Sound- 402 AM EDT Fri Mar 15 2024 ...SMALL CRAFT ADVISORY IN EFFECT FROM 11 AM EDT THIS MORNING THROUGH THIS EVENING... .TODAY...S winds 10 to 15 kt, becoming NW this afternoon. Gusts up to 25 kt. Seas 2 to 3 ft. A chance of showers this morning. A slight chance of showers this afternoon. Patchy fog this morning with vsby 1 NM or less. .TONIGHT...N winds 10 to 15 kt, diminishing to 5 to 10 kt after midnight. Gusts up to 25 kt. Seas 2 to 3 ft. .SAT...NW winds around 5 kt, becoming SW in the afternoon. Seas around 2 ft. .SAT NIGHT...S winds 10 to 15 kt, increasing to 15 to 20 kt after midnight. Seas around 2 ft. .SUN...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 3 ft. .SUN NIGHT...W winds 10 to 15 kt. Gusts up to 20 kt in the evening. Seas 2 to 3 ft. .MON THROUGH TUE NIGHT...W winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 3 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ233-152100- Vineyard Sound- 402 AM EDT Fri Mar 15 2024 .TODAY...S winds 10 to 15 kt, becoming NW this afternoon. Gusts up to 25 kt. Seas 2 to 3 ft. A chance of showers this morning. A slight chance of showers this afternoon. .TONIGHT...N winds 10 to 15 kt with gusts up to 20 kt, diminishing to around 5 kt after midnight. Seas 2 to 3 ft. .SAT...NW winds around 5 kt, becoming SW with gusts up to 20 kt in the afternoon. Seas around 2 ft. .SAT NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. .SUN...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 4 ft. .SUN NIGHT...W winds 10 to 15 kt. Gusts up to 20 kt in the evening. Seas 2 to 3 ft. .MON THROUGH TUE NIGHT...W winds 15 to 20 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. $$ ANZ234-152100- Buzzards Bay- 402 AM EDT Fri Mar 15 2024 .TODAY...S winds 10 to 15 kt, becoming NW this afternoon. Gusts up to 25 kt. Seas 2 to 3 ft. A chance of showers this morning. A slight chance of showers this afternoon. .TONIGHT...N winds 10 to 15 kt with gusts up to 20 kt, diminishing to 5 to 10 kt after midnight. Seas 2 to 3 ft. .SAT...W winds around 5 kt, becoming SW with gusts up to 20 kt in the afternoon. Seas around 2 ft. .SAT NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. .SUN...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 4 ft. .SUN NIGHT...W winds 10 to 15 kt with gusts up to 20 kt, diminishing to 5 to 10 kt after midnight. Seas 2 to 3 ft. .MON THROUGH TUE NIGHT...W winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 3 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ235-152100- Rhode Island Sound- 402 AM EDT Fri Mar 15 2024 .TODAY...SW winds 10 to 15 kt, becoming NW this afternoon. Gusts up to 20 kt. Seas 2 to 4 ft. A chance of showers this morning. A slight chance of showers this afternoon. .TONIGHT...N winds 10 to 15 kt with gusts up to 20 kt, diminishing to 5 to 10 kt after midnight. Seas 2 to 4 ft. .SAT...NW winds around 5 kt, becoming SW 10 to 15 kt with gusts up to 20 kt in the afternoon. Seas around 2 ft. .SAT NIGHT...SW winds 10 to 15 kt, increasing to 15 to 20 kt after midnight. Seas 2 to 4 ft. .SUN...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to 4 ft. .SUN NIGHT...W winds 10 to 15 kt. Gusts up to 20 kt in the evening. Seas 2 to 4 ft. .MON THROUGH TUE NIGHT...W winds 15 to 20 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. $$ ANZ237-152100- Block Island Sound- 402 AM EDT Fri Mar 15 2024 .TODAY...SW winds 10 to 15 kt, becoming NW this afternoon. Gusts up to 25 kt. Seas 2 to 4 ft. A chance of showers this morning. A slight chance of showers this afternoon. .TONIGHT...N winds 10 to 15 kt with gusts up to 20 kt, diminishing to 5 to 10 kt after midnight. Seas 2 to 4 ft. .SAT...NW winds around 5 kt, becoming SW with gusts up to 20 kt in the afternoon. Seas around 2 ft. .SAT NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. .SUN...SW winds around 15 kt with gusts up to 25 kt. Seas 3 to 4 ft. .SUN NIGHT...W winds 10 to 15 kt with gusts up to 20 kt, becoming NW 5 to 10 kt after midnight. Seas 2 to 4 ft. .MON THROUGH TUE NIGHT...W winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 4 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ230-152100- Boston Harbor- 402 AM EDT Fri Mar 15 2024 .TODAY...E winds 5 to 10 kt, becoming N 10 to 15 kt with gusts up to 25 kt this afternoon. Waves 1 foot or less, then around 2 ft this afternoon. A slight chance of showers. Patchy fog this morning. Vsby 1 NM or less, increasing to 1 to 3 NM this afternoon. .TONIGHT...N winds 10 to 15 kt with gusts up to 20 kt, becoming NW around 5 kt after midnight. Waves around 2 ft in the evening, then 1 foot or less. .SAT...W winds around 5 kt, becoming S in the afternoon. Waves 1 foot or less, then around 2 ft in the afternoon. .SAT NIGHT...S winds 10 to 15 kt with gusts up to 20 kt. Waves around 2 ft. .SUN...SW winds around 15 kt with gusts up to 20 kt. Waves around 2 ft. A chance of showers. .SUN NIGHT...W winds 10 to 15 kt. Gusts up to 20 kt in the evening. Waves around 2 ft. .MON THROUGH TUE NIGHT...W winds 10 to 15 kt with gusts up to 25 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. $$ ANZ236-152100- Narragansett Bay- 402 AM EDT Fri Mar 15 2024 .TODAY...SW winds 5 to 10 kt, becoming NW 10 to 15 kt with gusts up to 25 kt this afternoon. Waves 2 to 3 ft. A chance of showers this morning. A slight chance of showers this afternoon. .TONIGHT...N winds 10 to 15 kt with gusts up to 20 kt, diminishing to around 5 kt after midnight. Waves 2 to 3 ft. .SAT...NW winds around 5 kt, becoming SW with gusts up to 20 kt in the afternoon. Waves around 2 ft. .SAT NIGHT...S winds 10 to 15 kt with gusts up to 20 kt. Waves 2 to 3 ft. .SUN...SW winds 10 to 15 kt with gusts up to 20 kt. Waves 2 to 4 ft. .SUN NIGHT...W winds 10 to 15 kt with gusts up to 20 kt, becoming NW 5 to 10 kt after midnight. Waves 2 to 3 ft. .MON THROUGH TUE NIGHT...W winds 10 to 15 kt with gusts up to 25 kt. Waves 2 to 3 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ 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

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