Coastal Waters Forecast
Issued by NWS Boston, MA

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865 FZUS51 KBOX 262316 CWFBOX Coastal Waters Forecast National Weather Service Boston/Norton MA 716 PM EDT Sat May 26 2018 Coastal waters from the Merrimack River MA to Watch Hill RI out to 25 NM ANZ200-271200- 716 PM EDT Sat May 26 2018 .Synopsis for Massachusetts and Rhode Island coastal waters... A back door cold front will push S across the waters into this evening. The front will become nearly stationary just S of the waters Sunday and Mon. A cold front will cross the waters from west to east late Mon night. High pres builds across New England Tue, then will shift across to south of the waters Wed. 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. $$ ANZ250-271200- Coastal waters east of Ipswich Bay and the Stellwagen Bank National Marine Sanctuary- 716 PM EDT Sat May 26 2018 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE SUNDAY NIGHT... .TONIGHT...E winds 10 to 15 kt, increasing to 15 to 20 kt after midnight. Gusts up to 30 kt. Seas 2 to 4 ft. Patchy fog. A chance of showers. A slight chance of tstms this evening. Vsby 1 NM or less. .SUN...E winds 15 to 20 kt with gusts up to 30 kt. Seas 4 to 7 ft. Patchy fog. Vsby 1 to 3 NM. .SUN NIGHT...E winds 15 to 20 kt, becoming NE 10 to 15 kt after midnight. Gusts up to 25 kt. Seas 5 to 8 ft. Patchy fog. A chance of rain. Vsby 1 to 3 NM. .MON...NE winds 10 to 15 kt with gusts up to 20 kt, diminishing to 5 to 10 kt in the afternoon. Seas 3 to 5 ft. Patchy fog. Vsby 1 to 3 NM. .MON NIGHT...SW winds 5 to 10 kt. Seas 3 to 4 ft. .TUE...W winds 5 to 10 kt, becoming N in the afternoon. Seas 2 to 4 ft. .TUE NIGHT...E winds around 5 kt, becoming N after midnight. Seas 2 to 3 ft. .WED...SE winds 5 to 10 kt. Seas 2 to 3 ft. .WED NIGHT...SW winds around 10 kt. Seas 2 to 4 ft. .THU...SW winds 10 to 15 kt. Seas 2 to 3 ft. .THU NIGHT...S winds 10 to 15 kt. Seas 2 to 3 ft. Winds and seas higher in and near tstms. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ251-271200- Massachusetts Bay and Ipswich Bay- 716 PM EDT Sat May 26 2018 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE SUNDAY NIGHT... .TONIGHT...NE winds 10 to 15 kt with gusts up to 30 kt. Seas 2 to 3 ft. A chance of showers. A slight chance of tstms this evening. Patchy fog after midnight. Vsby 1 NM or less. .SUN...E winds 10 to 15 kt with gusts up to 30 kt, increasing to 15 to 20 kt in the afternoon. Seas 4 to 6 ft. Patchy fog. A chance of showers. Vsby 1 to 3 NM. .SUN NIGHT...E winds 15 to 20 kt, becoming NE 10 to 15 kt after midnight. Seas 4 to 6 ft. Patchy fog. A chance of rain. Vsby 1 to 3 NM. .MON...NE winds 5 to 10 kt. Seas 3 to 5 ft. Patchy fog. Vsby 1 to 3 NM. .MON NIGHT...S winds 5 to 10 kt, becoming SW after midnight. Seas 2 to 4 ft. .TUE...NW winds 5 to 10 kt, becoming NE in the afternoon. Seas 2 to 3 ft. .TUE NIGHT...E winds around 5 kt, becoming N after midnight. Seas 2 to 3 ft. .WED...E winds 5 to 10 kt. Seas around 2 ft. .WED NIGHT...SW winds 5 to 10 kt. Seas 2 to 3 ft. .THU...SW winds 5 to 10 kt. Seas around 2 ft. .THU 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. $$ ANZ231-271200- Cape Cod Bay- 716 PM EDT Sat May 26 2018 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE SUNDAY NIGHT... .TONIGHT...E winds 5 to 10 kt, increasing to 10 to 15 kt with gusts up to 25 kt after midnight. Seas 2 to 4 ft. Patchy fog after midnight. A slight chance of showers after midnight with vsby 1 NM or less. .SUN...E winds 10 to 15 kt, increasing to 15 to 20 kt in the afternoon. Gusts up to 30 kt. Seas 2 to 4 ft. Patchy fog. A chance of showers. Vsby 1 to 3 NM. .SUN NIGHT...NE winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 4 ft. Patchy fog. A chance of rain. Vsby 1 NM or less. .MON...NE winds 5 to 10 kt. Seas 2 to 3 ft. Patchy fog. Vsby 1 to 3 NM. .MON NIGHT...S winds 5 to 10 kt, becoming SW after midnight. Seas around 2 ft. .TUE...W winds 5 to 10 kt, becoming NE in the afternoon. Seas around 2 ft. .TUE NIGHT...E winds around 5 kt, becoming NW after midnight. Seas around 2 ft. .WED...E winds 5 to 10 kt. Seas 1 foot or less. .WED NIGHT...SW winds 5 to 10 kt. Seas 1 foot or less. .THU...SW winds 5 to 10 kt. Seas 1 foot or less. .THU NIGHT...S winds 5 to 10 kt. Seas 1 foot or less. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ254-271200- Coastal waters from Provincetown MA to Chatham MA to Nantucket MA out 20 nm- 716 PM EDT Sat May 26 2018 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE SUNDAY NIGHT... .TONIGHT...S winds 5 to 10 kt with gusts up to 20 kt, becoming E 15 to 20 kt with gusts up to 30 kt after midnight. Seas 2 to 4 ft. Patchy fog. A slight chance of showers after midnight. Vsby 1 NM or less. .SUN...E winds 15 to 20 kt with gusts up to 30 kt. Seas 4 to 7 ft. Patchy fog. A chance of showers. Vsby 1 NM or less. .SUN NIGHT...E winds 15 to 20 kt with gusts up to 25 kt. Seas 5 to 8 ft. Patchy fog. A chance of showers. Vsby 1 NM or less. .MON...NE winds 10 to 15 kt with gusts up to 20 kt, diminishing to 5 to 10 kt in the afternoon. Seas 3 to 5 ft. Patchy fog. Vsby 1 NM or less. .MON NIGHT...SE winds 5 to 10 kt, becoming SW after midnight. Seas 3 to 5 ft. Patchy fog. Vsby 1 to 3 NM. .TUE...W winds 5 to 10 kt, becoming N in the afternoon. Seas 2 to 4 ft. .TUE NIGHT...NE winds around 5 kt. Seas 2 to 4 ft. .WED...E winds around 5 kt. Seas 2 to 3 ft. .WED NIGHT...SW winds 5 to 10 kt. Seas 2 to 3 ft. .THU...SW winds 5 to 10 kt. Seas 2 to 3 ft. .THU NIGHT...S winds around 10 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. $$ ANZ255-271200- Coastal Waters extending out to 25 nm South of Marthas Vineyard and Nantucket- 716 PM EDT Sat May 26 2018 ...SMALL CRAFT ADVISORY IN EFFECT FROM 7 AM EDT SUNDAY THROUGH LATE SUNDAY NIGHT... .TONIGHT...SW winds 5 to 10 kt, becoming E after midnight. Gusts up to 20 kt. Seas 2 to 4 ft. Patchy dense fog. A slight chance of showers after midnight. Vsby 1 NM or less. .SUN...E winds 10 to 15 kt, increasing to 15 to 20 kt in the afternoon. Gusts up to 25 kt. Seas 3 to 5 ft. Patchy fog. A chance of showers. Vsby 1 NM or less. .SUN NIGHT...E winds 15 to 20 kt, becoming NE 10 to 15 kt after midnight. Gusts up to 25 kt. Seas 4 to 6 ft. Patchy fog. A chance of showers. Vsby 1 NM or less. .MON...NE winds 10 to 15 kt, diminishing to 5 to 10 kt in the afternoon. Seas 3 to 5 ft. Patchy fog. Vsby 1 NM or less. .MON NIGHT...SW winds 5 to 10 kt. Seas 3 to 5 ft. .TUE...W winds 5 to 10 kt. Seas 2 to 4 ft. .TUE NIGHT...E winds around 5 kt. Seas 2 to 3 ft. .WED...E winds around 5 kt. Seas 2 to 3 ft. .WED NIGHT...S winds 5 to 10 kt. Seas 2 to 3 ft. .THU...S winds 5 to 10 kt. Seas 2 to 3 ft. .THU NIGHT...S winds around 10 kt. Seas 2 to 3 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ256-271200- Coastal Waters from Montauk NY to Marthas Vineyard extending out to 20 nm South of Block Island- 716 PM EDT Sat May 26 2018 ...SMALL CRAFT ADVISORY IN EFFECT FROM 7 AM EDT SUNDAY THROUGH LATE SUNDAY NIGHT... .TONIGHT...SW winds 5 to 10 kt, becoming NE 10 to 15 kt after midnight. Gusts up to 25 kt. Seas 3 to 4 ft. Patchy fog. A slight chance of showers after midnight. Vsby 1 NM or less. .SUN...E winds 10 to 15 kt, becoming NE 15 to 20 kt in the afternoon. Gusts up to 30 kt. Seas 4 to 6 ft. Patchy fog. A chance of showers. Vsby 1 NM or less. .SUN NIGHT...NE winds 15 to 20 kt with gusts up to 30 kt, diminishing to 10 to 15 kt with gusts up to 20 kt after midnight. Seas 4 to 6 ft. Patchy fog. A chance of showers. Vsby 1 NM or less. .MON...NE winds 10 to 15 kt, diminishing to 5 to 10 kt in the afternoon. Seas 3 to 5 ft. Patchy fog. Vsby 1 to 3 NM. .MON NIGHT...SW winds 5 to 10 kt. Seas 3 to 4 ft. .TUE...SW winds 5 to 10 kt. Seas 2 to 4 ft. .TUE NIGHT...SE winds around 5 kt. Seas around 3 ft. .WED...E winds 5 to 10 kt. Seas around 3 ft. .WED NIGHT...S winds 5 to 10 kt. Seas 2 to 3 ft. .THU...S winds 5 to 10 kt. Seas 2 to 3 ft. .THU NIGHT...S winds around 10 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. $$ ANZ232-271200- Nantucket Sound- 716 PM EDT Sat May 26 2018 ...SMALL CRAFT ADVISORY IN EFFECT FROM 7 AM EDT SUNDAY THROUGH LATE SUNDAY NIGHT... .TONIGHT...SW winds 5 to 10 kt, becoming E 10 to 15 kt after midnight. Gusts up to 25 kt. Seas 2 to 3 ft. Patchy dense fog. A slight chance of showers after midnight. Vsby 1 NM or less. .SUN...E winds 10 to 15 kt, increasing to 15 to 20 kt in the afternoon. Gusts up to 30 kt. Seas 2 to 4 ft. Patchy fog. Showers likely. Vsby 1 NM or less. .SUN NIGHT...E winds 15 to 20 kt, becoming NE 10 to 15 kt after midnight. Gusts up to 25 kt. Seas 2 to 4 ft. Patchy fog. A chance of showers. Vsby 1 NM or less. .MON...NE winds 5 to 10 kt. Seas 2 to 3 ft. Patchy fog. Vsby 1 to 3 NM. .MON NIGHT...SW winds 5 to 10 kt. Seas 2 to 3 ft. .TUE...W winds 5 to 10 kt, becoming N in the afternoon. Seas 2 to 3 ft. .TUE NIGHT...SE winds around 5 kt, becoming NW after midnight. Seas around 2 ft. .WED...E winds 5 to 10 kt. Seas around 2 ft. .WED NIGHT...SW winds 5 to 10 kt. Seas 1 foot or less. .THU...SW winds 5 to 10 kt. Seas around 2 ft. .THU NIGHT...S winds 5 to 10 kt. Seas around 2 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ233-271200- Vineyard Sound- 716 PM EDT Sat May 26 2018 ...SMALL CRAFT ADVISORY IN EFFECT FROM 7 AM EDT SUNDAY THROUGH LATE SUNDAY NIGHT... .TONIGHT...S winds 5 to 10 kt, becoming E 10 to 15 kt after midnight. Gusts up to 20 kt. Seas 2 to 3 ft. Patchy fog. A slight chance of showers after midnight. Vsby 1 to 3 NM, decreasing to 1 NM or less after midnight. .SUN...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. .SUN NIGHT...NE winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 4 ft. Patchy fog. Showers likely. Vsby 1 to 3 NM. .MON...NE winds 5 to 10 kt. Seas around 2 ft. Patchy fog. Vsby 1 to 3 NM. .MON NIGHT...SW winds 5 to 10 kt. Seas 2 to 3 ft. .TUE...W winds 5 to 10 kt. Seas 2 to 3 ft. .TUE NIGHT...SE winds around 5 kt, becoming W after midnight. Seas around 2 ft. .WED...E winds 5 to 10 kt. Seas around 2 ft. .WED NIGHT...SW winds 5 to 10 kt. Seas around 2 ft. .THU...S winds 5 to 10 kt. Seas around 2 ft. .THU NIGHT...S winds around 10 kt. Seas 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. $$ ANZ234-271200- Buzzards Bay- 716 PM EDT Sat May 26 2018 ...SMALL CRAFT ADVISORY IN EFFECT FROM 7 AM EDT SUNDAY THROUGH LATE SUNDAY NIGHT... .TONIGHT...SW winds 5 to 10 kt, becoming NE 10 to 15 kt with gusts up to 20 kt after midnight. Seas 2 to 3 ft. Patchy fog. A slight chance of showers after midnight. Vsby 1 to 3 NM, decreasing to 1 NM or less after midnight. .SUN...NE winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 4 ft. Patchy fog. A chance of showers. Vsby 1 NM or less. .SUN NIGHT...NE winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 3 ft. Patchy fog. A chance of showers. Vsby 1 to 3 NM. .MON...NE winds 5 to 10 kt. Seas around 2 ft. Patchy fog. Vsby 1 to 3 NM. .MON NIGHT...SW winds 5 to 10 kt. Seas around 2 ft. .TUE...W winds 5 to 10 kt. Seas around 2 ft. .TUE NIGHT...S winds around 5 kt, becoming W around 5 kt after midnight. Seas 1 foot or less. .WED...E winds 5 to 10 kt. Seas 1 foot or less. .WED NIGHT...SW winds 5 to 10 kt. Seas 1 foot or less. .THU...SW winds 5 to 10 kt. Seas 1 foot or less. .THU NIGHT...S winds 5 to 10 kt. Seas around 2 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ235-271200- Rhode Island Sound- 716 PM EDT Sat May 26 2018 ...SMALL CRAFT ADVISORY IN EFFECT FROM 7 AM EDT SUNDAY THROUGH LATE SUNDAY NIGHT... .TONIGHT...SW winds 10 to 15 kt, becoming NE after midnight. Gusts up to 25 kt. Seas 2 to 4 ft. Patchy fog. A slight chance of showers after midnight with vsby 1 NM or less. .SUN...NE winds 10 to 15 kt, increasing to 15 to 20 kt in the afternoon. Gusts up to 25 kt. Seas 3 to 5 ft. Patchy fog. Showers likely. Vsby 1 NM or less. .SUN 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. Patchy fog. A chance of showers. Vsby 1 NM or less. .MON...NE winds 10 to 15 kt, becoming E 5 to 10 kt in the afternoon. Seas 2 to 4 ft. Patchy fog. Vsby 1 to 3 NM. .MON NIGHT...SW winds 5 to 10 kt. Gusts up to 20 kt after midnight. Seas 2 to 3 ft. .TUE...SW winds 5 to 10 kt. Seas 2 to 3 ft. .TUE NIGHT...SE winds around 5 kt. Seas around 2 ft. .WED...E winds 5 to 10 kt. Seas around 2 ft. .WED NIGHT...S winds 5 to 10 kt. Seas around 2 ft. .THU...S winds 5 to 10 kt. Seas around 2 ft. .THU NIGHT...S winds 5 to 10 kt. Seas 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. $$ ANZ237-271200- Block Island Sound- 716 PM EDT Sat May 26 2018 ...SMALL CRAFT ADVISORY IN EFFECT FROM 7 AM EDT SUNDAY THROUGH LATE SUNDAY NIGHT... .TONIGHT...SW winds 10 to 15 kt, becoming NE after midnight. Gusts up to 25 kt. Seas 2 to 4 ft. Patchy fog. A slight chance of showers after midnight. Vsby 1 to 3 NM, decreasing to 1 NM or less after midnight. .SUN...NE winds 10 to 15 kt, increasing to 15 to 20 kt in the afternoon. Gusts up to 30 kt. Seas 2 to 4 ft. Patchy fog. A chance of showers. Vsby 1 NM or less. .SUN NIGHT...NE winds 15 to 20 kt, diminishing to 10 to 15 kt after midnight. Gusts up to 25 kt. Seas 3 to 5 ft. Patchy fog. A chance of showers. Vsby 1 NM or less. .MON...NE winds 5 to 10 kt, becoming E in the afternoon. Seas 2 to 4 ft. Patchy fog. Vsby 1 to 3 NM. .MON NIGHT...SW winds 5 to 10 kt. Seas 2 to 3 ft. .TUE...SW winds 5 to 10 kt. Seas 2 to 3 ft. .TUE NIGHT...SE winds around 5 kt. Seas around 2 ft. .WED...E winds 5 to 10 kt. Seas around 2 ft. .WED NIGHT...S winds 5 to 10 kt. Seas around 2 ft. .THU...S winds 5 to 10 kt. Seas around 2 ft. .THU NIGHT...S winds 5 to 10 kt. Seas around 2 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ230-271200- Boston Harbor- 716 PM EDT Sat May 26 2018 .TONIGHT...NE winds 10 to 15 kt with gusts up to 25 kt. Waves 2 to 3 ft. A slight chance of showers. Patchy fog after midnight with vsby 1 NM or less. .SUN...E winds 10 to 15 kt with gusts up to 30 kt, becoming NE 15 to 20 kt in the afternoon. Waves 2 to 4 ft. Patchy fog. A chance of showers. Vsby 1 to 3 NM. .SUN NIGHT...NE winds 10 to 15 kt. Gusts up to 20 kt in the evening. Waves 2 to 4 ft. A chance of rain. .MON...NE winds 5 to 10 kt. Waves 1 foot or less, except 2 to 4 ft at the outer harbor entrance. .MON NIGHT...S winds around 5 kt, becoming SW after midnight. Waves 1 foot or less. .TUE...NW winds around 5 kt, becoming N in the afternoon. Waves 1 foot or less. .TUE NIGHT...NE winds around 5 kt, becoming N after midnight. Waves 1 foot or less. .WED...E winds around 5 kt. Waves 1 foot or less. .WED NIGHT...SW winds around 5 kt. Waves 1 foot or less. .THU...SW winds 5 to 10 kt. Waves 1 foot or less. .THU NIGHT...S winds 5 to 10 kt. Waves 1 foot or less. 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. $$ ANZ236-271200- Narragansett Bay- 716 PM EDT Sat May 26 2018 .TONIGHT...SW winds 5 to 10 kt, becoming NE after midnight. Gusts up to 20 kt. Waves 2 to 3 ft. Patchy fog after midnight. A slight chance of showers after midnight with vsby 1 NM or less. .SUN...NE winds 10 to 15 kt with gusts up to 25 kt. Waves 2 to 3 ft. Patchy fog. A chance of showers. Vsby 1 NM or less. .SUN NIGHT...NE winds 10 to 15 kt with gusts up to 20 kt. Waves 2 to 3 ft. Patchy fog. A chance of showers. Vsby 1 NM or less. .MON...NE winds 5 to 10 kt, becoming E in the afternoon. Waves around 2 ft. Patchy fog. Vsby 1 to 3 NM. .MON NIGHT...SW winds around 5 kt. Waves 2 to 3 ft. Patchy fog. Vsby 1 to 3 NM. .TUE...NW winds around 5 kt. Waves around 2 ft. .TUE NIGHT...SE winds around 5 kt, becoming SW around 5 kt after midnight. Waves around 2 ft. .WED...SE winds 5 to 10 kt. Waves around 2 ft. .WED NIGHT...SW winds around 5 kt. Waves around 2 ft. .THU...S winds 5 to 10 kt. Waves 1 foot or less. .THU NIGHT...S winds 5 to 10 kt. Waves around 2 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ 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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