Coastal Waters Forecast
Issued by NWS Boston, MA

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000 FZUS51 KBOX 260156 CWFBOX Coastal Waters Forecast National Weather Service Boston/Norton MA 956 PM EDT Fri May 25 2018 Coastal waters from the Merrimack River MA to Watch Hill RI out to 25 NM ANZ200-261415- 956 PM EDT Fri May 25 2018 .Synopsis for Massachusetts and Rhode Island coastal waters... High pressure will remain southeast of the waters tonight and Sat. A back door cold front will slowly settle south across the waters Sat night. This front will become nearly stationary just south of the waters on Sun and Mon. A cold front will cross the waters from west to east late Mon night, behind which high pressure builds over New England on Tue. The high will shift southeast of the waters on 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. $$ ANZ250-261415- Coastal waters east of Ipswich Bay and the Stellwagen Bank National Marine Sanctuary- 956 PM EDT Fri May 25 2018 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 2 AM EDT SATURDAY... .OVERNIGHT...SW winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 4 ft. A slight chance of showers. .SAT...SW winds 10 to 15 kt with gusts up to 20 kt, becoming SE 5 to 10 kt in the afternoon. Seas 2 to 4 ft. A chance of showers. .SAT NIGHT...E winds 10 to 15 kt, increasing to 15 to 20 kt after midnight. Gusts up to 25 kt. Seas 2 to 3 ft. Patchy fog. A chance of showers. Vsby 1 to 3 NM. .SUN...E winds 15 to 20 kt with gusts up to 30 kt. Seas 4 to 7 ft. Showers likely. Vsby 1 to 3 NM. .SUN NIGHT...NE winds 10 to 15 kt with gusts up to 25 kt. Seas 5 to 8 ft. Patchy fog. A chance of showers. Vsby 1 to 3 NM. .MON...NE winds 5 to 10 kt. Seas 4 to 6 ft. Patchy fog. Vsby 1 to 3 NM. .MON NIGHT...SE winds 5 to 10 kt, becoming SW after midnight. Seas 3 to 5 ft. .TUE...NW winds 5 to 10 kt. Seas 3 to 5 ft. .TUE NIGHT...N winds 5 to 10 kt. Seas 2 to 4 ft. .WED...SE winds 5 to 10 kt. Seas 2 to 3 ft. .WED NIGHT...SW winds 5 to 10 kt. Seas 2 to 4 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ251-261415- Massachusetts Bay and Ipswich Bay- 956 PM EDT Fri May 25 2018 .OVERNIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. A slight chance of showers. .SAT...SW winds 10 to 15 kt, becoming SE 5 to 10 kt in the afternoon. Seas around 2 ft. A chance of showers. .SAT NIGHT...E winds 10 to 15 kt with gusts up to 25 kt. Seas around 2 ft. A chance of showers. Vsby 1 to 3 NM. .SUN...E winds 10 to 15 kt with gusts up to 25 kt. Seas 3 to 5 ft. Showers likely. .SUN NIGHT...NE winds 10 to 15 kt with gusts up to 25 kt, diminishing to 5 to 10 kt after midnight. Seas 4 to 6 ft. Patchy fog. A chance of showers. Vsby 1 NM or less. .MON...NE winds 5 to 10 kt. Seas 3 to 5 ft. Patchy fog. Vsby 1 to 3 NM. .MON NIGHT...SE winds 5 to 10 kt, becoming SW after midnight. Seas 2 to 4 ft. .TUE...NW winds 5 to 10 kt. Seas 2 to 4 ft. .TUE NIGHT...N winds around 5 kt. 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. 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. $$ ANZ231-261415- Cape Cod Bay- 956 PM EDT Fri May 25 2018 .OVERNIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. .SAT...SW winds 10 to 15 kt with gusts up to 20 kt, becoming S 5 to 10 kt in the afternoon. Seas around 2 ft. .SAT NIGHT...E winds 5 to 10 kt, increasing to 10 to 15 kt with gusts up to 20 kt after midnight. Seas around 2 ft. Patchy fog. A chance of showers. Vsby 1 to 3 NM. .SUN...E winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 4 ft. Patchy fog. Showers likely. Vsby 1 to 3 NM. .SUN NIGHT...NE winds 10 to 15 kt with gusts up to 25 kt, diminishing to 5 to 10 kt after midnight. Seas 2 to 4 ft. Patchy fog. A chance of showers. Vsby 1 NM or less. .MON...NE winds 5 to 10 kt. Seas 2 to 3 ft. Patchy fog. Vsby 1 NM or less. .MON NIGHT...SE winds around 5 kt, becoming SW after midnight. Seas 2 to 3 ft. .TUE...NW winds 5 to 10 kt. Seas around 2 ft. .TUE NIGHT...NE winds around 5 kt. Seas around 2 ft. .WED...SE winds 5 to 10 kt. Seas 1 foot or less. .WED NIGHT...SW winds 5 to 10 kt. Seas 1 foot or less. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ254-261415- Coastal waters from Provincetown MA to Chatham MA to Nantucket MA out 20 nm- 956 PM EDT Fri May 25 2018 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH SATURDAY AFTERNOON... .OVERNIGHT...SW winds 15 to 20 kt with gusts up to 30 kt. Seas 4 to 6 ft. .SAT...SW winds 15 to 20 kt with gusts up to 30 kt, diminishing to 10 to 15 kt in the afternoon. Seas 3 to 5 ft. Patchy fog. Vsby 1 to 3 NM. .SAT NIGHT...S winds 5 to 10 kt, becoming E 10 to 15 kt with gusts up to 25 kt after midnight. Seas 2 to 4 ft. Patchy fog. A chance of showers. Vsby 1 to 3 NM. .SUN...E winds 15 to 20 kt with gusts up to 30 kt. Seas 4 to 6 ft. Patchy fog. Showers likely. Vsby 1 to 3 NM. .SUN NIGHT...E winds 10 to 15 kt with gusts up to 30 kt, becoming NE 5 to 10 kt with gusts up to 20 kt after midnight. Seas 4 to 7 ft. Patchy fog. A chance of showers. Vsby 1 to 3 NM. .MON...NE winds 5 to 10 kt. Seas 4 to 6 ft. Patchy fog. Vsby 1 NM or less. .MON NIGHT...SW winds 5 to 10 kt. Seas 3 to 5 ft. .TUE...NW winds 5 to 10 kt. Seas 3 to 5 ft. .TUE NIGHT...NE winds around 5 kt. Seas 2 to 4 ft. .WED...SE winds 5 to 10 kt. Seas 2 to 3 ft. .WED NIGHT...SW winds 5 to 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. $$ ANZ255-261415- Coastal Waters extending out to 25 nm South of Marthas Vineyard and Nantucket- 956 PM EDT Fri May 25 2018 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH SATURDAY AFTERNOON... .OVERNIGHT...SW winds 15 to 20 kt with gusts up to 30 kt. Seas 4 to 6 ft. .SAT...SW winds 15 to 20 kt with gusts up to 25 kt, diminishing to 10 to 15 kt in the afternoon. Seas 4 to 6 ft. Patchy fog. Vsby 1 to 3 NM. .SAT NIGHT...SW winds 10 to 15 kt, becoming E 5 to 10 kt after midnight. Seas 2 to 4 ft. Patchy fog. Showers likely with a chance of tstms. Vsby 1 NM or less. .SUN...E winds 5 to 10 kt, increasing to 10 to 15 kt in the afternoon. Gusts up to 25 kt. Seas 3 to 5 ft. Patchy fog. Showers likely with a chance of tstms. Vsby 1 NM or less. .SUN NIGHT...NE winds 10 to 15 kt with gusts up to 20 kt, diminishing to 5 to 10 kt after midnight. Seas 3 to 5 ft. Patchy fog. A chance of showers. Vsby 1 NM or less. .MON...NE winds 5 to 10 kt. Seas 3 to 5 ft. Patchy fog. Vsby 1 NM or less. .MON NIGHT...SW winds 5 to 10 kt. Seas 3 to 5 ft. .TUE...W winds 5 to 10 kt. Seas 2 to 4 ft. .TUE NIGHT...E winds around 5 kt. Seas 2 to 4 ft. .WED...E winds 5 to 10 kt. Seas 2 to 3 ft. .WED NIGHT...S winds 5 to 10 kt. Seas 2 to 3 ft. Winds and seas higher in and near tstms. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ256-261415- Coastal Waters from Montauk NY to Marthas Vineyard extending out to 20 nm South of Block Island- 956 PM EDT Fri May 25 2018 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH SATURDAY AFTERNOON... .OVERNIGHT...SW winds 15 to 20 kt with gusts up to 30 kt. Seas 4 to 6 ft. .SAT...SW winds 15 to 20 kt with gusts up to 25 kt, diminishing to 10 to 15 kt in the afternoon. Seas 4 to 6 ft. Patchy fog. Vsby 1 to 3 NM. .SAT NIGHT...SW winds 10 to 15 kt, becoming E 5 to 10 kt after midnight. Seas 3 to 4 ft. Patchy fog. Showers likely with a chance of tstms. Vsby 1 to 3 NM. .SUN...NE winds 5 to 10 kt, increasing to 10 to 15 kt in the afternoon. Gusts up to 20 kt. Seas 3 to 4 ft. Patchy fog. Showers likely with a chance of tstms. Vsby 1 NM or less. .SUN NIGHT...NE winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 5 ft. Patchy fog. A chance of showers. 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...SW winds 5 to 10 kt. Seas 2 to 4 ft. .TUE...SW winds 5 to 10 kt. Seas around 3 ft. .TUE NIGHT...E winds around 5 kt. Seas around 3 ft. .WED...E winds 5 to 10 kt. Seas 2 to 3 ft. .WED 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. $$ ANZ232-261415- Nantucket Sound- 956 PM EDT Fri May 25 2018 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 8 AM EDT SATURDAY... .OVERNIGHT...SW winds 15 to 20 kt with gusts up to 30 kt. Seas 3 to 5 ft. .SAT...SW winds 10 to 15 kt. Gusts up to 25 kt in the morning. Seas 2 to 4 ft. Patchy fog. Vsby 1 to 3 NM. .SAT NIGHT...S winds 5 to 10 kt, becoming E after midnight. Seas 2 to 3 ft. Patchy fog. Showers likely with a chance of tstms. Vsby 1 to 3 NM. .SUN...E winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 4 ft. Patchy fog. Showers likely with a chance of tstms. Vsby 1 NM or less. .SUN NIGHT...NE winds 10 to 15 kt with gusts up to 25 kt, diminishing to 5 to 10 kt after midnight. Seas 2 to 4 ft. Patchy fog. A chance of showers. Vsby 1 NM or less. .MON...NE winds 5 to 10 kt. Seas 2 to 3 ft. Patchy fog. Vsby 1 NM or less. .MON NIGHT...SW winds 5 to 10 kt. Seas 2 to 3 ft. .TUE...W winds 5 to 10 kt. Seas 2 to 3 ft. .TUE NIGHT...NE winds around 5 kt. Seas around 2 ft. .WED...SE winds 5 to 10 kt. Seas around 2 ft. .WED NIGHT...SW winds 5 to 10 kt. Seas around 2 ft. Winds and seas higher in and near tstms. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ233-261415- Vineyard Sound- 956 PM EDT Fri May 25 2018 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 8 AM EDT SATURDAY... .OVERNIGHT...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to 5 ft. .SAT...SW winds 10 to 15 kt. Gusts up to 25 kt in the morning. Seas 2 to 4 ft. Patchy fog. Vsby 1 to 3 NM. .SAT NIGHT...S winds 5 to 10 kt, becoming E after midnight. Seas 2 to 3 ft. Patchy fog. Showers likely with a chance of tstms. Vsby 1 to 3 NM. .SUN...NE winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft. Patchy fog. Showers likely with a chance of tstms. Vsby 1 to 3 NM. .SUN NIGHT...NE winds 10 to 15 kt. Gusts up to 20 kt in the evening. Seas around 2 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...SW winds 5 to 10 kt. Seas around 2 ft. .TUE NIGHT...E winds around 5 kt. Seas around 2 ft. .WED...SE winds 5 to 10 kt. Seas around 2 ft. .WED 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. $$ ANZ234-261415- Buzzards Bay- 956 PM EDT Fri May 25 2018 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 8 AM EDT SATURDAY... .OVERNIGHT...SW winds 10 to 15 kt with gusts up to 25 kt. Seas 3 to 5 ft. .SAT...SW winds 10 to 15 kt. Gusts up to 25 kt in the morning. Seas 2 to 4 ft. .SAT NIGHT...S winds 5 to 10 kt, becoming E after midnight. Seas around 2 ft. Patchy fog. Showers likely with a chance of tstms. Vsby 1 to 3 NM. .SUN...NE winds 5 to 10 kt, increasing to 10 to 15 kt in the afternoon. Gusts up to 20 kt. Seas around 2 ft. Patchy fog. Showers likely with a chance of tstms. Vsby 1 to 3 NM. .SUN NIGHT...NE winds 5 to 10 kt. Gusts up to 20 kt in the evening. Seas around 2 ft. Patchy fog. A chance of showers. Vsby 1 to 3 NM. .MON...NE winds 5 to 10 kt. Seas around 2 ft. Patchy fog. Vsby 1 to 3 NM. .MON NIGHT...SW winds 5 to 10 kt. Seas around 2 ft. .TUE...W winds 5 to 10 kt. Seas around 2 ft. .TUE NIGHT...NE winds around 5 kt. Seas 1 foot or less. .WED...SE winds 5 to 10 kt. Seas 1 foot or less. .WED NIGHT...SW winds 5 to 10 kt. Seas 1 foot or less. Winds and seas higher in and near tstms. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ235-261415- Rhode Island Sound- 956 PM EDT Fri May 25 2018 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH SATURDAY MORNING... .OVERNIGHT...SW winds 15 to 20 kt with gusts up to 30 kt. Seas 4 to 6 ft. .SAT...SW winds 10 to 15 kt. Gusts up to 25 kt in the morning. Seas 3 to 5 ft. Patchy fog. Vsby 1 to 3 NM. .SAT NIGHT...S winds 10 to 15 kt, becoming E 5 to 10 kt after midnight. Seas 2 to 4 ft. Patchy fog. Showers likely with a chance of tstms. Vsby 1 to 3 NM. .SUN...NE winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. Patchy fog. Showers likely with a chance of tstms. Vsby 1 to 3 NM. .SUN NIGHT...NE winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. Patchy fog. A chance of showers. Vsby 1 to 3 NM. .MON...NE winds 5 to 10 kt. 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...E winds 5 to 10 kt. Seas around 2 ft. .WED...SE winds 5 to 10 kt. Seas around 2 ft. .WED 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. $$ ANZ237-261415- Block Island Sound- 956 PM EDT Fri May 25 2018 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH SATURDAY MORNING... .OVERNIGHT...SW winds 15 to 20 kt with gusts up to 30 kt. Seas 3 to 5 ft. .SAT...SW winds 10 to 15 kt. Gusts up to 25 kt in the morning. Seas 3 to 5 ft. .SAT NIGHT...SW winds 5 to 10 kt, becoming E after midnight. Seas 2 to 4 ft. Patchy fog. Showers likely with a chance of tstms. Vsby 1 NM or less. .SUN...NE winds 5 to 10 kt, increasing to 10 to 15 kt in the afternoon. Gusts up to 20 kt. Seas 2 to 3 ft. Patchy fog. Showers likely with a chance of tstms. Vsby 1 NM or less. .SUN NIGHT...NE winds 10 to 15 kt with gusts up to 20 kt, diminishing to 5 to 10 kt after midnight. Seas 2 to 4 ft. Patchy fog. A chance of showers. Vsby 1 to 3 NM. .MON...NE winds 5 to 10 kt, becoming SE in the afternoon. Seas 2 to 4 ft. Patchy fog. Vsby 1 to 3 NM. .MON NIGHT...SW winds 5 to 10 kt. Seas 2 to 3 ft. .TUE...SW winds 5 to 10 kt. Seas 2 to 3 ft. .TUE NIGHT...E winds around 5 kt. Seas around 2 ft. .WED...SE winds 5 to 10 kt. Seas around 2 ft. .WED NIGHT...S winds 5 to 10 kt. Seas around 2 ft. Winds and seas higher in and near tstms. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ230-261415- Boston Harbor- 956 PM EDT Fri May 25 2018 .OVERNIGHT...SW winds 10 to 15 kt. Gusts up to 20 kt late this evening. Waves 1 foot or less. .SAT...SW winds 5 to 10 kt, becoming N in the afternoon. Waves 1 foot or less. A chance of showers. .SAT NIGHT...NE winds 5 to 10 kt, increasing to 10 to 15 kt after midnight. Gusts up to 20 kt. Waves around 2 ft. A chance of showers. .SUN...NE winds 10 to 15 kt with gusts up to 25 kt. Waves 2 to 4 ft. Showers likely. .SUN NIGHT...NE winds 5 to 10 kt. Gusts up to 20 kt in the evening. Waves 2 to 4 ft. Patchy fog. A chance of showers. Vsby 1 NM or less. .MON...NE winds around 5 kt. Waves 1 foot or less. Patchy fog. A chance of showers. Vsby 1 to 3 NM. .MON NIGHT...SE winds around 5 kt, becoming SW after midnight. Waves 1 foot or less. .TUE...NW winds around 5 kt. Waves 1 foot or less. .TUE NIGHT...N winds around 5 kt. 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. 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. $$ ANZ236-261415- Narragansett Bay- 956 PM EDT Fri May 25 2018 .OVERNIGHT...SW winds 5 to 10 kt with gusts up to 20 kt. Waves 2 to 4 ft. .SAT...SW winds 5 to 10 kt. Waves 2 to 3 ft. .SAT NIGHT...SE winds 5 to 10 kt, becoming NE after midnight. Waves 2 to 3 ft. Patchy fog. A chance of showers. Vsby 1 to 3 NM. .SUN...NE winds 5 to 10 kt with gusts up to 20 kt. Waves around 2 ft. Patchy fog. Showers likely. Vsby 1 to 3 NM. .SUN NIGHT...NE winds 5 to 10 kt. Gusts up to 20 kt in the evening. Waves around 2 ft. Patchy fog. A chance of showers. Vsby 1 to 3 NM. .MON...NE winds 5 to 10 kt. Waves around 2 ft. Patchy fog. Vsby 1 to 3 NM. .MON NIGHT...SW winds around 5 kt. Waves around 2 ft. .TUE...W winds 5 to 10 kt. Waves around 2 ft. .TUE NIGHT...NE winds around 5 kt. Waves around 2 ft. .WED...SE winds 5 to 10 kt. Waves around 2 ft. .WED NIGHT...SW winds around 5 kt. Waves around 2 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ 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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