Coastal Waters Forecast
Issued by NWS Boston, MA

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000 FZUS51 KBOX 201258 CWFBOX Coastal Waters Forecast National Weather Service Boston/Norton MA 858 AM EDT Thu Jun 20 2019 Coastal waters from the Merrimack River MA to Watch Hill RI out to 25 NM ANZ200-210115- 858 AM EDT Thu Jun 20 2019 .Synopsis for Massachusetts and Rhode Island coastal waters... Low pres will approach southern New England today and will cross the region tonight, exiting the coast Fri morning. High pres will build into the Northeast from the Great Lakes over the weekend, then will move offshore Mon. For information on possible hazardous weather beyond the 24-36 hour forecast period, please visit www.weather.gov/boston and follow the Current Hazards link above the map on the left. $$ ANZ250-210115- Coastal waters east of Ipswich Bay and the Stellwagen Bank National Marine Sanctuary- 858 AM EDT Thu Jun 20 2019 .THIS AFTERNOON...SE winds 5 to 10 kt, increasing to 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Areas of fog. Showers likely early. A chance of showers with isolated tstms. Some tstms may produce heavy rainfall. Vsby 1 NM or less. .TONIGHT...S winds 10 to 15 kt with gusts up to 20 kt, becoming SW 5 to 10 kt after midnight. Seas 2 to 3 ft. Areas of fog. A chance of showers and tstms. Some tstms may produce heavy rainfall. Vsby 1 NM or less. .FRI...NW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. Patchy fog. A chance of showers. Vsby 1 NM or less. .FRI NIGHT...NW winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 5 ft. A chance of showers. .SAT...NW winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 5 ft. .SAT NIGHT...NW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. .SUN...W winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. .SUN NIGHT...W winds 5 to 10 kt. Seas 2 to 3 ft. .MON...SW winds 5 to 10 kt. Seas 2 to 3 ft. .MON NIGHT...S winds 5 to 10 kt. Seas 2 to 3 ft. Winds and seas higher in and near tstms. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ251-210115- Massachusetts Bay and Ipswich Bay- 858 AM EDT Thu Jun 20 2019 .THIS AFTERNOON...SE winds 5 to 10 kt, increasing to 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft. Areas of fog. Showers likely. Isolated tstms. Some tstms may produce heavy rainfall. Vsby 1 NM or less. .TONIGHT...S winds 10 to 15 kt with gusts up to 20 kt, becoming SW 5 to 10 kt after midnight. Seas around 2 ft. Areas of fog. A chance of showers. Vsby 1 NM or less. .FRI...N winds 10 to 15 kt, becoming NW 5 to 10 kt in the afternoon. Gusts up to 20 kt. Seas around 2 ft. Patchy fog. Showers. Vsby 1 to 3 NM. .FRI NIGHT...NW winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft. .SAT...NW winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 3 ft. .SAT NIGHT...NW winds 10 to 15 kt, becoming W 5 to 10 kt after midnight. Gusts up to 25 kt. Seas around 2 ft. .SUN...W winds 5 to 10 kt with gusts up to 20 kt. Seas around 2 ft. .SUN NIGHT...W winds 5 to 10 kt with gusts up to 20 kt. Seas around 2 ft. .MON...SW winds 5 to 10 kt. Seas 2 to 3 ft. .MON NIGHT...S winds 5 to 10 kt. Seas around 2 ft. Winds and seas higher in and near tstms. 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. $$ ANZ231-210115- Cape Cod Bay- 858 AM EDT Thu Jun 20 2019 .THIS AFTERNOON...SE winds 5 to 10 kt. Seas 1 foot or less. Areas of fog. Showers likely early, then a chance of showers with isolated tstms. Some tstms may produce heavy rainfall. Vsby 1 NM or less, increasing to 1 to 3 NM. .TONIGHT...S winds 5 to 10 kt. Seas 1 foot or less. Areas of fog. A chance of showers and tstms. Some tstms may produce heavy rainfall. Vsby 1 NM or less. .FRI...NW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Patchy fog. Showers likely with a chance of tstms. Some tstms may produce heavy rainfall. Vsby 1 NM or less. .FRI NIGHT...NW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. A chance of showers. .SAT...NW winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 3 ft. .SAT NIGHT...NW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. .SUN...W winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft. .SUN NIGHT...W winds 5 to 10 kt. Seas around 2 ft. .MON...SW winds 5 to 10 kt. Seas 1 foot or less. .MON NIGHT...S winds 5 to 10 kt. Seas 1 foot or less. Winds and seas higher in and near tstms. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ254-210115- Coastal waters from Provincetown MA to Chatham MA to Nantucket MA out 20 nm- 858 AM EDT Thu Jun 20 2019 ...SMALL CRAFT ADVISORY IN EFFECT FROM THIS EVENING THROUGH FRIDAY AFTERNOON... .THIS AFTERNOON...SE winds 5 to 10 kt. Seas 2 to 4 ft. Areas of fog. Showers likely early. A slight chance of showers with isolated tstms. Some tstms may produce heavy rainfall. Vsby 1 NM or less. .TONIGHT...S winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. Areas of fog. A chance of showers and tstms. Some tstms may produce heavy rainfall. Vsby 1 NM or less. .FRI...W winds 10 to 15 kt, becoming NW in the afternoon. Gusts up to 25 kt. Seas 3 to 5 ft. Patchy fog. A chance of showers and tstms. Some tstms may produce heavy rainfall. Vsby 1 NM or less. .FRI NIGHT...NW winds 10 to 15 kt with gusts up to 20 kt. Seas 4 to 6 ft. A chance of showers. .SAT...NW winds 10 to 15 kt with gusts up to 25 kt. Seas 4 to 6 ft. .SAT NIGHT...NW winds 10 to 15 kt with gusts up to 25 kt. Seas 3 to 5 ft. .SUN...W winds 10 to 15 kt with gusts up to 25 kt. Seas 3 to 5 ft. .SUN NIGHT...W winds 5 to 10 kt with gusts up to 25 kt. Seas 2 to 4 ft. .MON...SW winds 5 to 10 kt. Seas 2 to 3 ft. .MON NIGHT...S winds 5 to 10 kt. Seas 2 to 3 ft. Winds and seas higher in and near tstms. 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. $$ ANZ255-210115- Coastal Waters extending out to 25 nm South of Marthas Vineyard and Nantucket- 858 AM EDT Thu Jun 20 2019 ...SMALL CRAFT ADVISORY IN EFFECT FROM THIS EVENING THROUGH FRIDAY AFTERNOON... .THIS AFTERNOON...SE winds 5 to 10 kt. Seas 2 to 4 ft. Areas of fog. Showers likely early. A slight chance of showers with isolated tstms. Some tstms may produce heavy rainfall. Vsby 1 NM or less. .TONIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 5 ft. Areas of fog. A chance of showers and tstms. Some tstms may produce heavy rainfall. Vsby 1 NM or less. .FRI...W winds 10 to 15 kt, becoming NW with gusts up to 20 kt in the afternoon. Seas 4 to 6 ft. Patchy fog. A chance of showers and tstms. Some tstms may produce heavy rainfall. Vsby 1 NM or less. .FRI NIGHT...NW winds 10 to 15 kt with gusts up to 20 kt. Seas 4 to 6 ft. A chance of showers. .SAT...W winds 10 to 15 kt with gusts up to 20 kt. Seas 4 to 6 ft. .SAT NIGHT...NW winds around 10 kt with gusts up to 20 kt. Seas 3 to 5 ft. .SUN...W winds 10 to 15 kt with gusts up to 25 kt. Seas 3 to 5 ft. .SUN NIGHT...W winds 10 to 15 kt with gusts up to 25 kt. Seas 3 to 5 ft. .MON...SW winds 5 to 10 kt. Seas 2 to 4 ft. .MON NIGHT...S winds 5 to 10 kt. Seas 2 to 3 ft. Winds and seas higher in and near tstms. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ256-210115- Coastal Waters from Montauk NY to Marthas Vineyard extending out to 20 nm South of Block Island- 858 AM EDT Thu Jun 20 2019 ...SMALL CRAFT ADVISORY IN EFFECT FROM THIS EVENING THROUGH FRIDAY AFTERNOON... .THIS AFTERNOON...SE winds 5 to 10 kt. Seas 2 to 4 ft. Areas of fog. Showers likely early. A chance of showers with isolated tstms. Some tstms may produce heavy rainfall. Vsby 1 NM or less. .TONIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 5 ft. Areas of fog. A chance of showers and tstms. Some tstms may produce heavy rainfall. Vsby 1 NM or less. .FRI...NW winds 10 to 15 kt. Gusts up to 20 kt in the morning. Seas 4 to 6 ft. Patchy fog. A chance of showers and tstms. Some tstms may produce heavy rainfall. Vsby 1 NM or less. .FRI NIGHT...NW winds 10 to 15 kt. Gusts up to 20 kt after midnight. Seas 4 to 6 ft. .SAT...W winds 10 to 15 kt with gusts up to 20 kt. Seas 4 to 6 ft. .SAT NIGHT...NW winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 5 ft. .SUN...W winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 4 ft. .SUN NIGHT...W winds 10 to 15 kt with gusts up to 25 kt. Seas 3 to 5 ft. .MON...SW winds 5 to 10 kt. Seas 2 to 3 ft. .MON NIGHT...SW winds 5 to 10 kt. Seas around 2 ft. Winds and seas higher in and near tstms. 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. $$ ANZ232-210115- Nantucket Sound- 858 AM EDT Thu Jun 20 2019 .THIS AFTERNOON...SE winds 5 to 10 kt. Seas around 2 ft. Areas of fog. Showers likely early. A chance of showers with isolated tstms. Some tstms may produce heavy rainfall. Vsby 1 NM or less. .TONIGHT...SW winds 5 to 10 kt. Gusts up to 20 kt in the evening. Seas 2 to 3 ft. Areas of fog. A chance of showers and tstms. Some tstms may produce heavy rainfall. Vsby 1 NM or less. .FRI...W winds 5 to 10 kt, becoming NW 10 to 15 kt in the afternoon. Gusts up to 20 kt. Seas 2 to 3 ft. Patchy fog. Showers and tstms likely. Some tstms may produce heavy rainfall. Vsby 1 NM or less. .FRI NIGHT...NW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. A chance of showers. .SAT...NW winds 5 to 10 kt with gusts up to 20 kt. Seas 2 to 4 ft. .SAT NIGHT...NW winds 5 to 10 kt with gusts up to 20 kt. Seas around 2 ft. .SUN...W winds 5 to 10 kt with gusts up to 25 kt. Seas 2 to 3 ft. .SUN NIGHT...W winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 3 ft. .MON...SW winds 5 to 10 kt. Seas 1 foot or less. .MON NIGHT...S winds 5 to 10 kt. Seas 1 foot or less. Winds and seas higher in and near tstms. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ233-210115- Vineyard Sound- 858 AM EDT Thu Jun 20 2019 .THIS AFTERNOON...SE winds 5 to 10 kt. Seas around 2 ft. Areas of fog. Showers likely early, then a chance of showers with isolated tstms. Some tstms may produce heavy rainfall. Vsby 1 NM or less. .TONIGHT...SW winds around 10 kt. Seas 2 to 3 ft. Areas of fog. A chance of showers and tstms. Some tstms may produce heavy rainfall. Vsby 1 NM or less. .FRI...NW winds 5 to 10 kt. Seas 2 to 3 ft. Patchy fog. Showers and tstms likely. Some tstms may produce heavy rainfall. Vsby 1 NM or less. .FRI NIGHT...NW winds around 10 kt. Seas 2 to 4 ft. A chance of showers. .SAT...NW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. .SAT NIGHT...NW winds 10 to 15 kt. Gusts up to 20 kt in the evening. Seas 2 to 3 ft. .SUN...W winds around 10 kt with gusts up to 25 kt. Seas 2 to 4 ft. .SUN NIGHT...W winds 5 to 10 kt with gusts up to 25 kt. Seas 2 to 4 ft. .MON...SW winds 5 to 10 kt. Seas around 2 ft. .MON NIGHT...S winds 5 to 10 kt. Seas around 2 ft. Winds and seas higher in and near tstms. 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. $$ ANZ234-210115- Buzzards Bay- 858 AM EDT Thu Jun 20 2019 .THIS AFTERNOON...SE winds 5 to 10 kt. Seas around 2 ft. Areas of fog. Showers likely early. A chance of showers with isolated tstms. Some tstms may produce heavy rainfall. Vsby 1 NM or less. .TONIGHT...SW winds 5 to 10 kt. Seas 2 to 3 ft. Areas of fog. A chance of showers and tstms. Some tstms may produce heavy rainfall. Vsby 1 NM or less. .FRI...NW winds 5 to 10 kt. Seas 2 to 3 ft. Patchy fog. Showers likely with tstms. Some tstms may produce heavy rainfall. Vsby 1 NM or less. .FRI NIGHT...NW winds 5 to 10 kt. Gusts up to 20 kt in the evening. Seas 2 to 4 ft. A chance of showers. .SAT...NW winds 5 to 10 kt with gusts up to 25 kt. Seas 2 to 3 ft. .SAT NIGHT...NW winds 5 to 10 kt. Gusts up to 20 kt in the evening. Seas around 2 ft. .SUN...W winds 5 to 10 kt with gusts up to 25 kt. Seas 2 to 4 ft. .SUN NIGHT...W winds 5 to 10 kt with gusts up to 25 kt. Seas 2 to 4 ft. .MON...SW winds 5 to 10 kt. Seas around 2 ft. .MON NIGHT...S winds 5 to 10 kt. Seas 1 foot or less. Winds and seas higher in and near tstms. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ235-210115- Rhode Island Sound- 858 AM EDT Thu Jun 20 2019 .THIS AFTERNOON...SE winds 5 to 10 kt. Seas 2 to 3 ft. Areas of fog. Showers early. A chance of showers with isolated tstms. Some tstms may produce heavy rainfall. Vsby 1 NM or less. .TONIGHT...SW winds around 10 kt. Gusts up to 20 kt in the evening. Seas 3 to 5 ft. Areas of fog. A chance of showers and tstms. Some tstms may produce heavy rainfall. Vsby 1 NM or less. .FRI...NW winds 5 to 10 kt. Seas 3 to 5 ft. Patchy fog. Showers and tstms likely. Some tstms may produce heavy rainfall. Vsby 1 NM or less. .FRI NIGHT...NW winds 5 to 10 kt. Seas 4 to 6 ft. A chance of showers. .SAT...NW winds around 10 kt with gusts up to 25 kt. Seas 3 to 5 ft. .SAT NIGHT...NW winds 5 to 10 kt. Gusts up to 20 kt in the evening. Seas 2 to 3 ft. .SUN...W winds around 10 kt with gusts up to 25 kt. Seas 2 to 4 ft. .SUN NIGHT...W winds 5 to 10 kt with gusts up to 25 kt. Seas 2 to 4 ft. .MON...SW winds 5 to 10 kt. Seas 2 to 3 ft. .MON NIGHT...SW winds 5 to 10 kt. Seas around 2 ft. Winds and seas higher in and near tstms. 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. $$ ANZ237-210115- Block Island Sound- 858 AM EDT Thu Jun 20 2019 .THIS AFTERNOON...SE winds 5 to 10 kt. Seas 2 to 3 ft. Areas of fog. Showers likely early. A chance of showers with isolated tstms. Some tstms may produce heavy rainfall. Vsby 1 NM or less. .TONIGHT...SW winds 5 to 10 kt. Seas 2 to 4 ft. Areas of fog. A chance of showers and tstms. Some tstms may produce heavy rainfall. Vsby 1 NM or less. .FRI...NW winds 5 to 10 kt. Seas 2 to 4 ft. Patchy fog. A chance of showers and tstms likely. Some tstms may produce heavy rainfall. Vsby 1 NM or less. .FRI NIGHT...NW winds 5 to 10 kt. Seas 3 to 5 ft. .SAT...NW winds 10 to 15 kt with gusts up to 25 kt. Seas 3 to 5 ft. .SAT NIGHT...NW winds 5 to 10 kt. Gusts up to 20 kt in the evening. Seas 2 to 4 ft. .SUN...W winds 5 to 10 kt with gusts up to 25 kt. Seas 2 to 3 ft. .SUN NIGHT...W winds 5 to 10 kt with gusts up to 20 kt. Seas 2 to 3 ft. .MON...SW winds 5 to 10 kt. Seas 2 to 3 ft. .MON NIGHT...SW winds 5 to 10 kt. Seas around 2 ft. Winds and seas higher in and near tstms. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ230-210115- Boston Harbor- 858 AM EDT Thu Jun 20 2019 .THIS AFTERNOON...SE winds 5 to 10 kt. Waves 1 foot or less. Areas of fog. Showers likely. Isolated tstms. Some tstms may produce heavy rainfall. Vsby 1 to 3 NM. .TONIGHT...S winds 5 to 10 kt, becoming SW after midnight. Waves 1 foot or less. Areas of fog. Showers and tstms likely. Some tstms may produce heavy rainfall. Vsby 1 NM or less. .FRI...NW winds 5 to 10 kt. Waves 1 foot or less. Areas of fog. Showers. Vsby 1 to 3 NM. .FRI NIGHT...NW winds 5 to 10 kt with gusts up to 20 kt. Waves 1 foot or less. .SAT...NW winds around 10 kt with gusts up to 25 kt. Waves around 2 ft. .SAT NIGHT...NW winds 5 to 10 kt. Gusts up to 25 kt in the evening. Waves around 2 ft. .SUN...NW winds 5 to 10 kt with gusts up to 20 kt. Waves around 2 ft. .SUN NIGHT...W winds 5 to 10 kt with gusts up to 20 kt. Waves around 2 ft. .MON...SW winds around 5 kt. Waves around 2 ft. .MON NIGHT...S winds 5 to 10 kt. Waves around 2 ft. Winds and waves higher in and near tstms. 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. $$ ANZ236-210115- Narragansett Bay- 858 AM EDT Thu Jun 20 2019 .THIS AFTERNOON...SE winds 5 to 10 kt. Waves around 2 ft. Areas of fog. Showers likely early. A chance of showers with isolated tstms. Some tstms may produce heavy rainfall. Vsby 1 NM or less. .TONIGHT...SW winds 5 to 10 kt. Waves 2 to 3 ft. Areas of fog. Showers likely with a chance of tstms. Some tstms may produce heavy rainfall. Vsby 1 NM or less. .FRI...NW winds 5 to 10 kt. Waves 2 to 3 ft. Patchy fog. Showers with a chance of tstms. Some tstms may produce heavy rainfall. Vsby 1 to 3 NM. .FRI NIGHT...NW winds 5 to 10 kt. Waves 2 to 3 ft. .SAT...NW winds 5 to 10 kt with gusts up to 25 kt. Waves 2 to 3 ft. .SAT NIGHT...NW winds 5 to 10 kt. Gusts up to 25 kt in the evening. Waves 2 to 3 ft. .SUN...W winds 5 to 10 kt with gusts up to 25 kt. Waves around 2 ft. .SUN NIGHT...W winds 5 to 10 kt with gusts up to 20 kt. Waves 2 to 3 ft. .MON...SW winds 5 to 10 kt. Waves around 2 ft. .MON NIGHT...S winds around 5 kt. Waves 2 to 3 ft. Winds and waves higher in and near tstms. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ For the latest updates...please visit our webpage at www.weather.gov/boston You can follow us on Facebook at www.facebook.com/us.nationalweatherservice.boston.gov You can follow us on Twitter at @NWSBoston

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