Coastal Waters Forecast
Issued by NWS Boston, MA

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000 FZUS51 KBOX 292317 CWFBOX Coastal Waters Forecast for Massachusetts and Rhode Island National Weather Service Boston/Norton MA 716 PM EDT Fri May 29 2020 Coastal waters from the Merrimack River MA to Watch Hill RI out to 25 NM ANZ200-301200- 716 PM EDT Fri May 29 2020 .Synopsis for Massachusetts and Rhode Island coastal waters... High pressure will remain offshore through the end of the week. An approaching cold front will bring scattered showers and thunderstorms overnight into Saturday as it crosses the waters. High pressure will build into the eastern states and overthe waters Sunday through Tuesday. 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. $$ ANZ250-301200- Coastal waters east of Ipswich Bay and the Stellwagen Bank National Marine Sanctuary- 716 PM EDT Fri May 29 2020 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 6 AM EDT SATURDAY... .TONIGHT...S winds 15 to 20 kt with gusts up to 25 kt. Seas 4 to 6 ft. Patchy dense fog. Isolated showers this evening. Scattered showers with isolated tstms after midnight. Some tstms may produce heavy rainfall after midnight. Vsby 1 NM or less. .SAT...S winds 10 to 15 kt. Gusts up to 25 kt in the morning. Seas 2 to 4 ft. Patchy fog. Vsby 1 NM or less. .SAT NIGHT...W winds 5 to 10 kt. Seas 2 to 3 ft. .SUN...NW winds 10 to 15 kt, diminishing to 5 to 10 kt in the afternoon. Gusts up to 20 kt. Seas 2 to 4 ft. .SUN NIGHT...N winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. .MON AND MON NIGHT...NW winds 5 to 10 kt. Seas 2 to 4 ft. .TUE...SW winds 5 to 10 kt. Seas 2 to 4 ft. .TUE NIGHT AND WED...SW winds 10 to 15 kt. Gusts up to 20 kt. Seas 2 to 4 ft. A chance of showers. .WED NIGHT...SW winds 5 to 10 kt. Seas 3 to 5 ft. Winds and seas higher in and near tstms. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ251-301200- Massachusetts Bay and Ipswich Bay- 716 PM EDT Fri May 29 2020 .TONIGHT...S winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 4 ft. Patchy fog. Isolated showers. Isolated tstms after midnight. Some tstms may produce heavy rainfall after midnight. Vsby 1 NM or less. .SAT...SW winds 10 to 15 kt with gusts up to 20 kt, diminishing to 5 to 10 kt in the afternoon. Seas 2 to 4 ft. Patchy fog. Vsby 1 NM or less. .SAT NIGHT...W winds 5 to 10 kt. Seas 2 to 3 ft. .SUN...NW winds 10 to 15 kt with gusts up to 20 kt, diminishing to 5 to 10 kt in the afternoon. Seas 2 to 3 ft. .SUN NIGHT...NW winds 5 to 10 kt. Gusts up to 20 kt in the evening. Seas around 2 ft. .MON AND MON NIGHT...NW winds 5 to 10 kt. Seas 2 to 3 ft. .TUE...W winds 5 to 10 kt. Seas 2 to 3 ft. .TUE NIGHT AND WED...SW winds 5 to 10 kt. Seas 2 to 3 ft. A chance of showers. .WED NIGHT...SW winds 5 to 10 kt. Seas 2 to 4 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. $$ ANZ231-301200- Cape Cod Bay- 716 PM EDT Fri May 29 2020 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 6 AM EDT SATURDAY... .TONIGHT...S winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 3 ft. Patchy dense fog. Scattered showers with isolated tstms. Some tstms may produce heavy rainfall. Vsby 1 NM or less. .SAT...SW winds 10 to 15 kt. Gusts up to 20 kt in the morning. Seas 2 to 3 ft. Patchy fog. Scattered showers. Vsby 1 NM or less. .SAT NIGHT...W winds 5 to 10 kt. Seas around 2 ft. .SUN...NW winds 10 to 15 kt, becoming N 5 to 10 kt in the afternoon. Gusts up to 20 kt. Seas 2 to 3 ft. .SUN NIGHT THROUGH MON NIGHT...NW winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft. .TUE THROUGH WED...S winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. A chance of showers. .WED NIGHT...SW winds 5 to 10 kt. Seas 2 to 3 ft. Winds and seas higher in and near tstms. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ254-301200- Coastal waters from Provincetown MA to Chatham MA to Nantucket MA out 20 nm- 716 PM EDT Fri May 29 2020 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 6 AM EDT SATURDAY... .TONIGHT...S winds 15 to 20 kt with gusts up to 25 kt. Seas 4 to 6 ft. Patchy dense fog. Scattered showers with isolated tstms. Some tstms may produce heavy rainfall. Vsby 1 NM or less. .SAT...SW winds 15 to 20 kt, diminishing to 10 to 15 kt in the afternoon. Gusts up to 25 kt. Seas 3 to 5 ft. Patchy fog. Scattered showers. Vsby 1 NM or less. .SAT NIGHT...SW winds 10 to 15 kt, becoming W 5 to 10 kt after midnight. Seas 2 to 4 ft. Patchy dense fog. Vsby 1 NM or less. .SUN...NW winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 5 ft. .SUN NIGHT AND MON...NW winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 5 ft. .MON NIGHT...NW winds 5 to 10 kt. Seas 2 to 4 ft. .TUE...W winds 5 to 10 kt. Seas 2 to 4 ft. .TUE NIGHT THROUGH WED NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 4 to 7 ft. A chance of showers. 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. $$ ANZ255-301200- Coastal Waters extending out to 25 nm South of Marthas Vineyard and Nantucket- 716 PM EDT Fri May 29 2020 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 6 AM EDT SATURDAY... .TONIGHT...S winds 15 to 20 kt with gusts up to 25 kt. Seas 4 to 6 ft. Patchy dense fog. Scattered showers with isolated tstms. Some tstms may produce heavy rainfall. Vsby 1 NM or less. .SAT...SW winds 10 to 15 kt with gusts up to 25 kt. Seas 4 to 6 ft. Patchy dense fog. Scattered showers. Vsby 1 NM or less. .SAT NIGHT...SW winds 10 to 15 kt, becoming W 5 to 10 kt after midnight. Seas 3 to 5 ft. Patchy dense fog. Vsby 1 NM or less. .SUN...NW winds 5 to 10 kt. Seas 3 to 5 ft. .SUN NIGHT...N winds 5 to 10 kt, increasing to 10 to 15 kt with gusts up to 20 kt after midnight. Seas 2 to 4 ft. .MON AND MON NIGHT...NW winds 5 to 10 kt with gusts up to 20 kt. Seas 2 to 4 ft. .TUE...W winds 5 to 10 kt. Seas 2 to 4 ft. A chance of showers. .TUE NIGHT AND WED...SW winds 10 to 15 kt. Seas 4 to 7 ft. A chance of showers. .WED NIGHT...SW winds 5 to 10 kt. Seas 6 to 9 ft. Winds and seas higher in and near tstms. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ256-301200- Coastal Waters from Montauk NY to Marthas Vineyard extending out to 20 nm South of Block Island- 716 PM EDT Fri May 29 2020 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 6 AM EDT SATURDAY... .TONIGHT...S winds 15 to 20 kt with gusts up to 25 kt. Seas 4 to 7 ft. Patchy dense fog. Scattered showers with isolated tstms. Some tstms may produce heavy rainfall. Vsby 1 NM or less. .SAT...SW winds 10 to 15 kt. Gusts up to 20 kt in the morning. Seas 4 to 6 ft. Patchy dense fog. Scattered showers. Vsby 1 NM or less. .SAT NIGHT...SW winds 10 to 15 kt, becoming W 5 to 10 kt after midnight. Seas 3 to 5 ft. .SUN...NW winds 5 to 10 kt. Gusts up to 20 kt in the morning. Seas 3 to 5 ft. .SUN NIGHT...N winds 5 to 10 kt. Seas 3 to 4 ft. .MON AND MON NIGHT...NW winds 5 to 10 kt. Seas 2 to 4 ft. .TUE...W winds 10 to 15 kt. Seas 2 to 4 ft. A chance of showers. .TUE NIGHT AND WED...SW winds 10 to 15 kt. Gusts up to 20 kt. Seas 4 to 7 ft. A chance of showers. .WED NIGHT...SW winds 5 to 10 kt. Seas 6 to 9 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. $$ ANZ232-301200- Nantucket Sound- 716 PM EDT Fri May 29 2020 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 6 AM EDT SATURDAY... .TONIGHT...S winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 4 ft. Patchy dense fog. Scattered showers with isolated tstms. Some tstms may produce heavy rainfall. Vsby 1 NM or less. .SAT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. Patchy dense fog. Scattered showers. Vsby 1 NM or less. .SAT NIGHT...SW winds 10 to 15 kt, becoming W 5 to 10 kt after midnight. Seas 2 to 3 ft. .SUN...N winds 5 to 10 kt. Gusts up to 20 kt in the morning. Seas 2 to 3 ft. .SUN NIGHT...N winds 5 to 10 kt, increasing to 10 to 15 kt with gusts up to 20 kt after midnight. Seas 2 to 3 ft. .MON AND MON NIGHT...NW winds 5 to 10 kt. Seas 2 to 3 ft. .TUE THROUGH WED...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. A chance of showers. .WED NIGHT...SW winds 5 to 10 kt. Seas 3 to 5 ft. Winds and seas higher in and near tstms. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ233-301200- Vineyard Sound- 716 PM EDT Fri May 29 2020 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 6 AM EDT SATURDAY... .TONIGHT...S winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 4 ft. Patchy dense fog. Scattered showers with isolated tstms. Some tstms may produce heavy rainfall. Vsby 1 NM or less. .SAT...SW winds 10 to 15 kt. Gusts up to 20 kt in the morning. Seas 2 to 4 ft. Patchy dense fog. Scattered showers. Vsby 1 NM or less. .SAT NIGHT...W winds 5 to 10 kt. Seas 2 to 3 ft. .SUN...NW winds 5 to 10 kt. Seas 2 to 3 ft. .SUN NIGHT...N winds 5 to 10 kt. Seas around 2 ft. .MON AND MON NIGHT...NW winds 5 to 10 kt. Seas around 2 ft. .TUE THROUGH WED...SW winds 10 to 15 kt. Seas 2 to 4 ft. A chance of showers. .WED NIGHT...SW winds around 10 kt. Seas 3 to 5 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. $$ ANZ234-301200- Buzzards Bay- 716 PM EDT Fri May 29 2020 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 6 AM EDT SATURDAY... .TONIGHT...SW winds 15 to 20 kt, diminishing to 10 to 15 kt after midnight. Gusts up to 25 kt. Seas 2 to 3 ft. Patchy dense fog. Scattered showers with isolated tstms. Some tstms may produce heavy rainfall. Vsby 1 NM or less. .SAT...SW winds 10 to 15 kt. Gusts up to 20 kt in the morning. Seas 2 to 3 ft. Patchy dense fog. Scattered showers. Vsby 1 NM or less. .SAT NIGHT...W winds 5 to 10 kt. Seas around 2 ft. .SUN...NW winds 5 to 10 kt. Seas around 2 ft. .SUN NIGHT...N winds 5 to 10 kt. Seas around 2 ft. .MON...NW winds 5 to 10 kt, becoming W in the afternoon. Seas 1 foot or less. A chance of showers. .MON NIGHT...W winds around 5 kt, becoming NW after midnight. Seas 1 foot or less. .TUE THROUGH WED...SW winds 5 to 10 kt. Seas 2 to 4 ft. A chance of showers. .WED NIGHT...SW winds 5 to 10 kt. Seas 2 to 4 ft. Winds and seas higher in and near tstms. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ235-301200- Rhode Island Sound- 716 PM EDT Fri May 29 2020 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 6 AM EDT SATURDAY... .TONIGHT...S winds 15 to 20 kt with gusts up to 25 kt. Seas 4 to 6 ft. Patchy dense fog. Scattered showers with isolated tstms. Some tstms may produce heavy rainfall. Vsby 1 NM or less. .SAT...SW winds 10 to 15 kt. Gusts up to 20 kt in the morning. Seas 4 to 6 ft. Patchy dense fog. Scattered showers. Vsby 1 NM or less. .SAT NIGHT...SW winds 10 to 15 kt, becoming W 5 to 10 kt after midnight. Seas 2 to 4 ft. .SUN...NW winds 5 to 10 kt. Gusts up to 20 kt in the morning. Seas 2 to 4 ft. .SUN NIGHT...N winds 5 to 10 kt. Gusts up to 20 kt after midnight. Seas 2 to 3 ft. .MON AND MON NIGHT...NW winds 5 to 10 kt. Seas 2 to 3 ft. .TUE...W winds 10 to 15 kt. Seas 2 to 3 ft. .TUE NIGHT AND WED...SW winds 10 to 15 kt. Gusts up to 20 kt. Seas 4 to 6 ft. A chance of showers. .WED NIGHT...SW winds 5 to 10 kt. Seas 4 to 7 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. $$ ANZ237-301200- Block Island Sound- 716 PM EDT Fri May 29 2020 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 6 AM EDT SATURDAY... .TONIGHT...S winds 15 to 20 kt, becoming SW 10 to 15 kt after midnight. Gusts up to 25 kt. Seas 4 to 6 ft. Patchy dense fog. Scattered showers with isolated tstms. Some tstms may produce heavy rainfall. Vsby 1 NM or less. .SAT...SW winds 10 to 15 kt. Gusts up to 20 kt in the morning. Seas 3 to 5 ft. Patchy dense fog. Scattered showers. Vsby 1 NM or less. .SAT NIGHT...SW winds 5 to 10 kt, becoming NW after midnight. Seas 2 to 4 ft. .SUN...NW winds 5 to 10 kt. Gusts up to 20 kt in the morning. Seas 2 to 4 ft. .SUN NIGHT...NW winds 5 to 10 kt. Seas 2 to 3 ft. .MON AND MON NIGHT...N winds 5 to 10 kt. Seas 2 to 3 ft. .TUE AND TUE NIGHT...SW winds 10 to 15 kt. Seas 2 to 4 ft. A chance of showers. .WED...SW winds 5 to 10 kt. Seas 3 to 5 ft. A chance of showers. .WED NIGHT...SW winds 5 to 10 kt. Seas 4 to 6 ft. Winds and seas higher in and near tstms. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ230-301200- Boston Harbor- 716 PM EDT Fri May 29 2020 .TONIGHT...S winds 10 to 15 kt with gusts up to 25 kt. Waves around 2 ft. Patchy fog after midnight. Isolated showers after midnight with vsby 1 to 3 NM. .SAT...SW winds around 10 kt. Waves around 2 ft. .SAT NIGHT...W winds 5 to 10 kt. Waves 1 foot or less. .SUN...NW winds 5 to 10 kt. Gusts up to 20 kt in the morning. Waves around 2 ft. .SUN NIGHT...NW winds 5 to 10 kt. Waves 1 foot or less. .MON...NW winds 5 to 10 kt. Waves 1 foot or less. A chance of showers. .MON NIGHT...NW winds 5 to 10 kt. Waves 1 foot or less. .TUE THROUGH WED...SW winds 5 to 10 kt. Waves 1 foot or less. A chance of showers. .WED NIGHT...SW 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. $$ ANZ236-301200- Narragansett Bay- 716 PM EDT Fri May 29 2020 .TONIGHT...S winds 10 to 15 kt with gusts up to 20 kt. Waves 2 to 4 ft. Patchy dense fog. Scattered showers with isolated tstms. Some tstms may produce heavy rainfall. Vsby 1 NM or less. .SAT...SW winds 5 to 10 kt. Waves 2 to 4 ft. Patchy dense fog. Scattered showers. Vsby 1 NM or less. .SAT NIGHT...SW winds 5 to 10 kt, becoming NW after midnight. Waves 2 to 3 ft. .SUN...NW winds 5 to 10 kt. Gusts up to 20 kt in the morning. Waves 2 to 3 ft. .SUN NIGHT...N winds 5 to 10 kt. Waves 2 to 3 ft. .MON...NW winds 5 to 10 kt. Waves around 2 ft. A chance of showers. .MON NIGHT...NW winds 5 to 10 kt. Waves around 2 ft. .TUE...W winds 5 to 10 kt. Waves around 2 ft. .TUE NIGHT AND WED...SW winds 5 to 10 kt. Waves 2 to 3 ft. A chance of showers. .WED NIGHT...SW winds 5 to 10 kt. Waves 2 to 4 ft. Winds and waves higher in and near tstms. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ 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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