Coastal Waters Forecast
Issued by NWS Boston, MA

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000 FZUS51 KBOX 181716 CWFBOX Coastal Waters Forecast National Weather Service Boston/Norton MA 116 PM EDT Fri May 18 2018 Coastal waters from the Merrimack River MA to Watch Hill RI out to 25 NM ANZ200-190600- 116 PM EDT Fri May 18 2018 .Synopsis for Massachusetts and Rhode Island coastal waters... Dry today as a high pressure briefly builds across the waters. A frontal boundry S of Long Island will push N late tonight into Sat. Expecting heavy rainfall to limit vsbys on Sat. A passing cold front Sun afternoon could trigger a thunderstorm or two across the near shore waters. Dry weather returns on 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. $$ ANZ250-190600- Coastal waters east of Ipswich Bay and the Stellwagen Bank National Marine Sanctuary- 116 PM EDT Fri May 18 2018 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 8 PM EDT THIS EVENING... .THIS AFTERNOON...NE winds 10 to 15 kt with gusts up to 25 kt. Seas 4 to 6 ft. .TONIGHT...E winds 5 to 10 kt. Seas 3 to 5 ft. .SAT...E winds around 10 kt with gusts up to 20 kt. Seas 3 to 5 ft. Patchy fog. Showers likely. Vsby 1 NM or less. .SAT NIGHT...SE winds 10 to 15 kt, becoming SW 15 to 20 kt after midnight. Seas 3 to 5 ft. Areas of fog. Showers likely. Vsby 1 NM or less. .SUN...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 4 to 6 ft. Patchy fog. A chance of showers. Vsby 1 NM or less. .SUN NIGHT...W winds 10 to 15 kt, becoming NW 5 to 10 kt after midnight. Seas 2 to 4 ft. .MON...W winds 5 to 10 kt. Seas 2 to 3 ft. .MON NIGHT...NW winds 5 to 10 kt. Seas 2 to 3 ft. A chance of showers. .TUE...SE winds 5 to 10 kt. Seas 2 to 3 ft. A chance of showers. .TUE NIGHT...S winds 5 to 10 kt. Seas 2 to 4 ft. A chance of showers. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ251-190600- Massachusetts Bay and Ipswich Bay- 116 PM EDT Fri May 18 2018 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 5 PM EDT THIS AFTERNOON... .THIS AFTERNOON...NE winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 5 ft. .TONIGHT...E winds 5 to 10 kt. Seas 2 to 4 ft. .SAT...E winds 5 to 10 kt with gusts up to 20 kt. Seas 2 to 3 ft. Patchy fog. Showers likely. Vsby 1 NM or less. .SAT NIGHT...SE winds 5 to 10 kt, becoming SW 10 to 15 kt with gusts up to 20 kt after midnight. Seas 2 to 4 ft. Areas of fog. Showers likely. Vsby 1 NM or less. .SUN...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. Areas of fog. A chance of showers. Vsby 1 NM or less. .SUN NIGHT...NW winds 5 to 10 kt. Seas 2 to 3 ft. .MON...W winds around 5 kt. Seas around 2 ft. .MON NIGHT...NW winds around 5 kt. Seas 1 foot or less. A chance of showers. .TUE...E winds 5 to 10 kt. Seas around 2 ft. A chance of showers. .TUE NIGHT...S winds 5 to 10 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. $$ ANZ231-190600- Cape Cod Bay- 116 PM EDT Fri May 18 2018 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 5 PM EDT THIS AFTERNOON... .THIS AFTERNOON...NE winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 4 ft. .TONIGHT...E winds 5 to 10 kt. Gusts up to 20 kt in the evening. Seas 2 to 3 ft. .SAT...E winds 5 to 10 kt with gusts up to 20 kt. Seas around 2 ft. Patchy fog. Showers likely. Vsby 1 NM or less. .SAT NIGHT...S winds 10 to 15 kt. Gusts up to 20 kt after midnight. Seas 2 to 3 ft. Areas of fog. Showers likely. Vsby 1 NM or less. .SUN...SW winds 15 to 20 kt. Seas 2 to 3 ft. Areas of fog. A chance of showers. Vsby 1 NM or less. .SUN NIGHT...W winds 10 to 15 kt, becoming NW around 5 kt after midnight. Seas around 2 ft. A chance of showers. .MON...W winds around 5 kt. Seas 1 foot or less. .MON NIGHT...W winds 5 to 10 kt. Seas 1 foot or less. A chance of showers. .TUE...SE winds 5 to 10 kt. Seas 1 foot or less. A chance of showers. .TUE NIGHT...S winds 5 to 10 kt. Seas around 2 ft. A chance of showers. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ254-190600- Coastal waters from Provincetown MA to Chatham MA to Nantucket MA out 20 nm- 116 PM EDT Fri May 18 2018 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH SATURDAY MORNING... .THIS AFTERNOON...NE winds 15 to 20 kt with gusts up to 25 kt. Seas 4 to 7 ft. .TONIGHT...E winds 10 to 15 kt with gusts up to 25 kt. Seas 4 to 6 ft. .SAT...E winds 10 to 15 kt with gusts up to 25 kt. Seas 3 to 5 ft. Patchy fog. A chance of showers. Vsby 1 NM or less. .SAT NIGHT...S winds 10 to 15 kt, becoming SW 15 to 20 kt after midnight. Gusts up to 25 kt. Seas 4 to 6 ft. Areas of fog. A chance of showers. Vsby 1 NM or less. .SUN...SW winds 20 to 25 kt. Seas 4 to 7 ft. Patchy fog. A chance of showers. Vsby 1 NM or less. .SUN NIGHT...W winds 15 to 20 kt, becoming NW 5 to 10 kt after midnight. Seas 4 to 6 ft. A chance of showers. .MON...W winds around 5 kt. Seas 2 to 4 ft. .MON NIGHT...SW winds 5 to 10 kt. Seas 2 to 3 ft. A chance of showers. .TUE...SE winds 5 to 10 kt. Seas 2 to 3 ft. A chance of showers. .TUE NIGHT...S winds 5 to 10 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. $$ ANZ255-190600- Coastal Waters extending out to 25 nm South of Marthas Vineyard and Nantucket- 116 PM EDT Fri May 18 2018 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH SATURDAY MORNING... .THIS AFTERNOON...NE winds 15 to 20 kt with gusts up to 30 kt. Seas 4 to 6 ft. .TONIGHT...NE winds 15 to 20 kt, becoming E 10 to 15 kt after midnight. Gusts up to 25 kt. Seas 4 to 6 ft. Patchy fog. Vsby 1 to 3 NM. .SAT...E winds 10 to 15 kt with gusts up to 25 kt. Seas 3 to 5 ft. Patchy fog. Showers likely. Vsby 1 NM or less. .SAT NIGHT...S winds 10 to 15 kt, becoming SW 15 to 20 kt after midnight. Gusts up to 25 kt. Seas 4 to 6 ft. Areas of fog. A chance of showers. Vsby 1 NM or less. .SUN...SW winds 20 to 25 kt. Seas 5 to 8 ft. Areas of fog. A chance of showers. Vsby 1 NM or less. .SUN NIGHT...W winds 15 to 20 kt, becoming NW 5 to 10 kt after midnight. Seas 5 to 8 ft. .MON...W winds 5 to 10 kt. Seas 3 to 5 ft. .MON NIGHT...SW winds 5 to 10 kt. Seas 2 to 4 ft. A chance of showers. .TUE...SE winds 5 to 10 kt. Seas around 3 ft. A chance of showers. .TUE NIGHT...S winds around 10 kt. Seas around 3 ft. A chance of showers. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ256-190600- Coastal Waters from Montauk NY to Marthas Vineyard extending out to 20 nm South of Block Island- 116 PM EDT Fri May 18 2018 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH SATURDAY MORNING... .THIS AFTERNOON...NE winds 15 to 20 kt with gusts up to 30 kt. Seas 4 to 7 ft. .TONIGHT...E winds 15 to 20 kt with gusts up to 25 kt. Seas 4 to 6 ft. A chance of showers. .SAT...E winds 10 to 15 kt with gusts up to 25 kt. Seas 3 to 5 ft. Patchy fog. Showers likely. Vsby 1 NM or less. .SAT NIGHT...S winds 15 to 20 kt with gusts up to 25 kt. Seas 4 to 7 ft. Areas of fog. A chance of showers. Vsby 1 NM or less. .SUN...SW winds 20 to 25 kt. Seas 5 to 8 ft. Areas of fog. A chance of showers. Vsby 1 to 3 NM. .SUN NIGHT...W winds 15 to 20 kt, becoming NW 5 to 10 kt after midnight. Seas 5 to 8 ft. .MON...W winds 5 to 10 kt. Seas 3 to 5 ft. .MON NIGHT...SE winds 5 to 10 kt. Seas 3 to 4 ft. A chance of showers. .TUE...SE winds 5 to 10 kt. Seas around 3 ft. A chance of showers. .TUE NIGHT...S winds 5 to 10 kt. Seas around 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. $$ ANZ232-190600- Nantucket Sound- 116 PM EDT Fri May 18 2018 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT... .THIS AFTERNOON...NE winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 4 ft. .TONIGHT...E winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. .SAT...E winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Patchy fog. Showers likely. Vsby 1 NM or less. .SAT NIGHT...S winds 10 to 15 kt, becoming SW 15 to 20 kt after midnight. Gusts up to 25 kt. Seas 2 to 4 ft. Areas of fog. A chance of showers. Vsby 1 NM or less. .SUN...SW winds 20 to 25 kt. Seas 2 to 4 ft. Areas of fog. A chance of showers. Vsby 1 NM or less. .SUN NIGHT...W winds 15 to 20 kt, becoming NW 5 to 10 kt after midnight. Seas 2 to 4 ft. A chance of showers. .MON...W winds 5 to 10 kt. Seas around 2 ft. .MON NIGHT...W winds 5 to 10 kt. Seas around 2 ft. A chance of showers. .TUE...SE winds 5 to 10 kt. Seas around 2 ft. A chance of showers. .TUE NIGHT...S winds 5 to 10 kt. Seas around 2 ft. A chance of showers. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ233-190600- Vineyard Sound- 116 PM EDT Fri May 18 2018 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT... .THIS AFTERNOON...NE winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 4 ft. .TONIGHT...E winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. .SAT...E winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft. Patchy fog. Showers likely. Vsby 1 NM or less. .SAT NIGHT...S winds 10 to 15 kt, becoming SW 15 to 20 kt after midnight. Seas 2 to 4 ft. Areas of fog. Showers likely. Vsby 1 NM or less. .SUN...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to 5 ft. Patchy fog. A chance of showers. Vsby 1 to 3 NM. .SUN NIGHT...W winds 10 to 15 kt, becoming NW 5 to 10 kt after midnight. Seas 2 to 4 ft. A chance of showers. .MON...W winds 5 to 10 kt. Seas 2 to 3 ft. .MON NIGHT...W winds 5 to 10 kt. Seas 2 to 3 ft. A chance of showers. .TUE...SE winds 5 to 10 kt. Seas around 2 ft. A chance of showers. .TUE NIGHT...S winds 5 to 10 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. $$ ANZ234-190600- Buzzards Bay- 116 PM EDT Fri May 18 2018 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT... .THIS AFTERNOON...NE winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 4 ft. .TONIGHT...NE winds 10 to 15 kt, becoming E 5 to 10 kt after midnight. Gusts up to 20 kt. Seas around 2 ft. .SAT...E winds 5 to 10 kt. Gusts up to 20 kt in the morning. Seas around 2 ft. Patchy fog. Showers likely. Vsby 1 NM or less. .SAT NIGHT...S winds 10 to 15 kt. Gusts up to 20 kt after midnight. Seas 2 to 3 ft. Areas of fog. Showers likely. Vsby 1 NM or less. .SUN...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 4 ft. Patchy fog. A chance of showers. Vsby 1 to 3 NM. .SUN NIGHT...W winds 10 to 15 kt, becoming NW around 5 kt after midnight. Seas 2 to 3 ft. A chance of showers. .MON...W winds around 5 kt. Seas around 2 ft. .MON NIGHT...W winds around 5 kt. Seas around 2 ft. A chance of showers. .TUE...SE winds 5 to 10 kt. Seas 1 foot or less. A chance of showers. .TUE NIGHT...S winds 5 to 10 kt. Seas around 2 ft. A chance of showers. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ235-190600- Rhode Island Sound- 116 PM EDT Fri May 18 2018 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT... .THIS AFTERNOON...NE winds 15 to 20 kt with gusts up to 30 kt. Seas 3 to 5 ft. .TONIGHT...NE winds 15 to 20 kt, becoming E 10 to 15 kt after midnight. Gusts up to 25 kt. Seas 2 to 4 ft. .SAT...E winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 4 ft. Patchy fog. Showers likely. Vsby 1 NM or less. .SAT NIGHT...S winds 10 to 15 kt, becoming SW 15 to 20 kt after midnight. Gusts up to 25 kt. Seas 3 to 5 ft. Areas of fog. A chance of showers. Vsby 1 NM or less. .SUN...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 4 to 7 ft. Areas of fog. A chance of showers. Vsby 1 NM or less. .SUN NIGHT...W winds 10 to 15 kt with gusts up to 20 kt, becoming NW 5 to 10 kt after midnight. Seas 4 to 7 ft. A chance of showers. .MON...W winds 5 to 10 kt. Seas 3 to 4 ft. .MON NIGHT...NW winds 5 to 10 kt. Seas 2 to 4 ft. A chance of showers. .TUE...SE winds 5 to 10 kt. Seas 2 to 3 ft. A chance of showers. .TUE NIGHT...S winds 5 to 10 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. $$ ANZ237-190600- Block Island Sound- 116 PM EDT Fri May 18 2018 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT... .THIS AFTERNOON...NE winds around 15 kt with gusts up to 25 kt. Seas 3 to 5 ft. .TONIGHT...E winds 10 to 15 kt with gusts up to 25 kt. Seas 3 to 5 ft. A chance of showers. .SAT...E winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 4 ft. Patchy fog. Showers. Vsby 1 NM or less. .SAT NIGHT...S winds 10 to 15 kt, becoming SW 15 to 20 kt after midnight. Seas 3 to 5 ft. Areas of fog. Showers likely. Vsby 1 NM or less. .SUN...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 4 to 6 ft. Areas of fog. A chance of showers. Vsby 1 NM or less. .SUN NIGHT...W winds 10 to 15 kt with gusts up to 20 kt, becoming NW 5 to 10 kt after midnight. Seas 3 to 5 ft. A chance of showers. .MON...W winds around 5 kt. Seas 2 to 4 ft. .MON NIGHT...SE winds around 5 kt. Seas 2 to 4 ft. A chance of showers. .TUE...SE winds 5 to 10 kt. Seas 2 to 3 ft. A chance of showers. .TUE NIGHT...S winds 5 to 10 kt. Seas 2 to 3 ft. A chance of showers. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ230-190600- Boston Harbor- 116 PM EDT Fri May 18 2018 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 2 PM EDT THIS AFTERNOON... .THIS AFTERNOON...NE winds 10 to 15 kt with gusts up to 20 kt. Waves 2 to 3 ft. .TONIGHT...E winds 5 to 10 kt. Waves around 2 ft. .SAT...E winds 5 to 10 kt. Waves around 2 ft. Patchy fog. Showers likely. Vsby 1 NM or less. .SAT NIGHT...SE winds 5 to 10 kt, becoming SW after midnight. Waves around 2 ft. Areas of fog. Showers likely. Vsby 1 NM or less. .SUN...SW winds 10 to 15 kt with gusts up to 20 kt. Waves around 2 ft. Areas of fog. A chance of showers. Vsby 1 NM or less. .SUN NIGHT...NW winds 5 to 10 kt. Waves 1 foot or less. .MON...W winds around 5 kt. Waves 1 foot or less. .MON NIGHT...NW winds around 5 kt. Waves 1 foot or less. A chance of showers. .TUE...E winds around 5 kt. Waves 1 foot or less. A chance of showers. .TUE NIGHT...S winds around 5 kt. Waves 1 foot or less. 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. $$ ANZ236-190600- Narragansett Bay- 116 PM EDT Fri May 18 2018 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 2 PM EDT THIS AFTERNOON... .THIS AFTERNOON...NE winds 10 to 15 kt with gusts up to 25 kt. Waves 2 to 3 ft. .TONIGHT...NE winds 10 to 15 kt with gusts up to 20 kt, diminishing to 5 to 10 kt after midnight. Waves around 2 ft. .SAT...E winds 5 to 10 kt. Gusts up to 20 kt in the morning. Waves around 2 ft. Patchy fog. Showers. Vsby 1 NM or less. .SAT NIGHT...S winds 5 to 10 kt, becoming SW 10 to 15 kt with gusts up to 20 kt after midnight. Waves 2 to 4 ft. Areas of fog. Showers likely. Vsby 1 NM or less. .SUN...SW winds 10 to 15 kt with gusts up to 25 kt. Waves 2 to 4 ft. Areas of fog. A chance of showers. Vsby 1 NM or less. .SUN NIGHT...NW winds 5 to 10 kt. Waves 2 to 4 ft. A chance of showers. .MON...W winds around 5 kt. Waves 2 to 3 ft. .MON NIGHT...NW winds around 5 kt. Waves 2 to 3 ft. A chance of showers. .TUE...SE winds around 5 kt. Waves around 2 ft. A chance of showers. .TUE NIGHT...S winds around 5 kt. Waves around 2 ft. A chance of showers. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ 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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