Coastal Waters Forecast
Issued by NWS Boston, MA

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000 FZUS51 KBOX 232317 CWFBOX Coastal Waters Forecast National Weather Service Boston/Norton MA 716 PM EDT Sat Mar 23 2019 Coastal waters from the Merrimack River MA to Watch Hill RI out to 25 NM ANZ200-241200- 716 PM EDT Sat Mar 23 2019 .Synopsis for Massachusetts and Rhode Island coastal waters... Strong low pres tracks thru the Canadian Maritimes this evening. West gales continue this evening and then slowly subside tonight. High pressure builds into the Mid Atlc region tonight and Sunday. A cold front then sweeps across the waters Mon followed by high pressure Tue and 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. $$ ANZ250-241200- Coastal waters east of Ipswich Bay and the Stellwagen Bank National Marine Sanctuary- 716 PM EDT Sat Mar 23 2019 ...GALE WARNING IN EFFECT UNTIL 1 AM EDT SUNDAY... .TONIGHT...NW winds 20 to 25 kt with gusts up to 40 kt. Seas 5 to 8 ft. .SUN...SW winds 10 to 15 kt with gusts up to 25 kt. Seas 3 to 5 ft. .SUN NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt, becoming W 5 to 10 kt after midnight. Seas 2 to 4 ft. A chance of rain. .MON...NW winds 10 to 15 kt with gusts up to 20 kt, becoming N 5 to 10 kt in the afternoon. Seas 2 to 3 ft. A chance of rain. .MON NIGHT...NW winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 5 ft. .TUE...N winds 10 to 15 kt. Gusts up to 20 kt in the morning. Seas 3 to 5 ft. .TUE NIGHT...N winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 5 ft. .WED...NE winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 5 ft. .WED NIGHT...S winds 5 to 10 kt. Seas 2 to 4 ft. .THU...S winds 5 to 10 kt. Seas 3 to 5 ft. .THU NIGHT...S winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 5 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ251-241200- Massachusetts Bay and Ipswich Bay- 716 PM EDT Sat Mar 23 2019 ...GALE WARNING IN EFFECT UNTIL 1 AM EDT SUNDAY... .TONIGHT...NW winds 20 to 25 kt, becoming W 15 to 20 kt after midnight. Gusts up to 35 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...SW winds 10 to 15 kt, becoming W 5 to 10 kt after midnight. Seas around 2 ft. .MON...N winds 5 to 10 kt. Seas around 2 ft. .MON NIGHT...NW winds 5 to 10 kt, becoming N 10 to 15 kt after midnight. Gusts up to 20 kt. Seas 2 to 4 ft. .TUE...N winds 5 to 10 kt. Seas 2 to 4 ft. .TUE NIGHT...N winds 5 to 10 kt. Gusts up to 20 kt after midnight. Seas 2 to 4 ft. .WED...NE winds 5 to 10 kt. Seas 2 to 4 ft. .WED NIGHT...S winds 5 to 10 kt. Seas around 2 ft. .THU...S winds 5 to 10 kt. Seas 2 to 4 ft. .THU NIGHT...S 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. $$ ANZ231-241200- Cape Cod Bay- 716 PM EDT Sat Mar 23 2019 ...GALE WARNING IN EFFECT UNTIL 1 AM EDT SUNDAY... .TONIGHT...W winds 15 to 20 kt with gusts up to 35 kt. Seas 3 to 5 ft. .SUN...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. .SUN NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt, diminishing to 5 to 10 kt after midnight. Seas around 2 ft. A chance of rain. .MON...NW winds 5 to 10 kt with gusts up to 20 kt, becoming N in the afternoon. Seas around 2 ft. A chance of rain. .MON NIGHT...NE winds 5 to 10 kt, becoming N 10 to 15 kt with gusts up to 20 kt after midnight. Seas 2 to 3 ft. .TUE...N winds 10 to 15 kt with gusts up to 20 kt, diminishing to 5 to 10 kt in the afternoon. Seas around 3 ft. .TUE NIGHT...N winds 5 to 10 kt, increasing to 10 to 15 kt with gusts up to 20 kt after midnight. Seas 2 to 3 ft. .WED...NE winds 5 to 10 kt with gusts up to 20 kt. Seas 2 to 3 ft. .WED NIGHT...SE winds 5 to 10 kt. Seas around 2 ft. .THU...SE winds 5 to 10 kt. Seas 2 to 3 ft. .THU NIGHT...S winds 5 to 10 kt. Seas 2 to 3 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ254-241200- Coastal waters from Provincetown MA to Chatham MA to Nantucket MA out 20 nm- 716 PM EDT Sat Mar 23 2019 ...GALE WARNING IN EFFECT UNTIL 1 AM EDT SUNDAY... .TONIGHT...NW winds 20 to 25 kt, diminishing to 15 to 20 kt after midnight. Gusts up to 40 kt. Seas 5 to 8 ft. .SUN...W winds 15 to 20 kt with gusts up to 30 kt. Seas 4 to 6 ft. .SUN NIGHT...SW winds 15 to 20 kt, diminishing to 10 to 15 kt after midnight. Gusts up to 25 kt. Seas 3 to 5 ft. A chance of rain. .MON...W winds 10 to 15 kt with gusts up to 20 kt, becoming N in the afternoon. Seas 2 to 4 ft. A chance of rain. .MON NIGHT...NE winds 5 to 10 kt, becoming N 10 to 15 kt with gusts up to 20 kt after midnight. Seas 3 to 5 ft. .TUE...N winds 10 to 15 kt. Gusts up to 20 kt in the morning. Seas 4 to 6 ft. .TUE NIGHT...N winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 5 ft. .WED...NE winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 5 ft. .WED NIGHT...E winds 5 to 10 kt. Seas 2 to 4 ft. .THU...SE winds 5 to 10 kt. Seas 2 to 4 ft. .THU NIGHT...SE winds 5 to 10 kt. Seas 3 to 5 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. $$ ANZ255-241200- Coastal Waters extending out to 25 nm South of Marthas Vineyard and Nantucket- 716 PM EDT Sat Mar 23 2019 ...GALE WARNING IN EFFECT UNTIL 1 AM EDT SUNDAY... .TONIGHT...NW winds 20 to 25 kt, diminishing to 15 to 20 kt after midnight. Gusts up to 35 kt. Seas 6 to 9 ft. .SUN...W winds 15 to 20 kt with gusts up to 30 kt. Seas 4 to 6 ft. .SUN NIGHT...SW winds 15 to 20 kt, diminishing to 10 to 15 kt after midnight. Gusts up to 25 kt. Seas 4 to 6 ft. .MON...W winds 5 to 10 kt, becoming N in the afternoon. Seas 3 to 5 ft. A chance of rain. .MON NIGHT...NE winds 5 to 10 kt, becoming N 10 to 15 kt with gusts up to 20 kt after midnight. Seas 3 to 5 ft. .TUE...N winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 5 ft. .TUE NIGHT...NE winds 10 to 15 kt. Gusts up to 20 kt after midnight. Seas 3 to 5 ft. .WED...NE winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 5 ft. .WED NIGHT...E winds 10 to 15 kt. Seas 2 to 4 ft. .THU...E winds 5 to 10 kt. Seas 2 to 4 ft. .THU NIGHT...SE winds 5 to 10 kt. Seas 3 to 5 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ256-241200- Coastal Waters from Montauk NY to Marthas Vineyard extending out to 20 nm South of Block Island- 716 PM EDT Sat Mar 23 2019 ...GALE WARNING IN EFFECT UNTIL 1 AM EDT SUNDAY... .TONIGHT...NW winds 20 to 25 kt, diminishing to 15 to 20 kt after midnight. Gusts up to 35 kt. Seas 5 to 8 ft. .SUN...W winds 15 to 20 kt with gusts up to 30 kt. Seas 4 to 6 ft. .SUN NIGHT...SW winds 15 to 20 kt, diminishing to 10 to 15 kt after midnight. Gusts up to 25 kt. Seas 4 to 6 ft. A chance of rain. .MON...W winds 5 to 10 kt, becoming N in the afternoon. Seas 3 to 5 ft. A chance of rain. .MON NIGHT...NE winds 5 to 10 kt, becoming N 10 to 15 kt with gusts up to 20 kt after midnight. Seas 3 to 5 ft. .TUE...N 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. .TUE NIGHT...NE winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 4 ft. .WED...NE winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 4 ft. .WED NIGHT...E winds 5 to 10 kt. Seas 2 to 4 ft. .THU...E winds 5 to 10 kt. Seas 2 to 4 ft. .THU NIGHT...SE 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. $$ ANZ232-241200- Nantucket Sound- 716 PM EDT Sat Mar 23 2019 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 5 AM EDT SUNDAY... .TONIGHT...NW winds 15 to 20 kt with gusts up to 30 kt. Seas 2 to 4 ft. .SUN...W winds 10 to 15 kt, becoming SW 15 to 20 kt in the afternoon. Gusts up to 30 kt. Seas 2 to 4 ft. .SUN NIGHT...SW winds 15 to 20 kt, diminishing to 5 to 10 kt after midnight. Seas 2 to 4 ft. A chance of rain. .MON...W winds 5 to 10 kt, becoming N in the afternoon. Seas 2 to 3 ft. A chance of rain. .MON NIGHT...NE winds 5 to 10 kt, becoming N 10 to 15 kt with gusts up to 20 kt after midnight. Seas 2 to 3 ft. .TUE...N winds 10 to 15 kt with gusts up to 20 kt, diminishing to 5 to 10 kt in the afternoon. Seas 2 to 4 ft. .TUE NIGHT...NE winds 5 to 10 kt, becoming N 10 to 15 kt with gusts up to 20 kt after midnight. Seas 2 to 3 ft. .WED...NE winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. .WED NIGHT...E winds 5 to 10 kt. Seas around 2 ft. .THU...E winds 5 to 10 kt. Seas around 2 ft. .THU NIGHT...SE winds 5 to 10 kt. Seas 2 to 3 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ233-241200- Vineyard Sound- 716 PM EDT Sat Mar 23 2019 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 5 AM EDT SUNDAY... .TONIGHT...W winds 15 to 20 kt with gusts up to 30 kt. Seas 2 to 4 ft. .SUN...W winds 10 to 15 kt, becoming SW 15 to 20 kt in the afternoon. Gusts up to 30 kt. Seas 2 to 4 ft. .SUN NIGHT...SW winds 10 to 15 kt, diminishing to 5 to 10 kt after midnight. Gusts up to 20 kt. Seas 2 to 4 ft. A chance of rain. .MON...W winds 5 to 10 kt, becoming N in the afternoon. Seas 2 to 3 ft. A chance of rain. .MON NIGHT...NE winds 5 to 10 kt, becoming N 10 to 15 kt with gusts up to 20 kt after midnight. Seas around 2 ft. .TUE...N winds 10 to 15 kt, diminishing to 5 to 10 kt in the afternoon. Seas around 2 ft. .TUE NIGHT...NE winds 5 to 10 kt, becoming N 10 to 15 kt with gusts up to 20 kt after midnight. Seas around 2 ft. .WED...NE winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft. .WED NIGHT...E winds 5 to 10 kt. Seas around 2 ft. .THU...SE 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. $$ ANZ234-241200- Buzzards Bay- 716 PM EDT Sat Mar 23 2019 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 5 AM EDT SUNDAY... .TONIGHT...W winds 15 to 20 kt, diminishing to 10 to 15 kt after midnight. Gusts up to 30 kt. Seas 2 to 3 ft. .SUN...W winds 10 to 15 kt, becoming SW 15 to 20 kt in the afternoon. Gusts up to 25 kt. Seas 2 to 4 ft. .SUN NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt, diminishing to 5 to 10 kt after midnight. Seas 2 to 3 ft. A chance of rain. .MON...NW winds 5 to 10 kt, becoming N in the afternoon. Seas 2 to 3 ft. A chance of rain. .MON NIGHT...N winds 5 to 10 kt. Seas 2 to 3 ft. .TUE...N winds 5 to 10 kt. Seas 2 to 3 ft. .TUE NIGHT...NE winds 5 to 10 kt. Gusts up to 20 kt after midnight. Seas around 2 ft. .WED...NE winds 5 to 10 kt with gusts up to 20 kt. Seas around 2 ft. .WED NIGHT...E winds 5 to 10 kt. Seas 1 foot or less. .THU...SE winds 5 to 10 kt. Seas around 2 ft. .THU NIGHT...S winds 5 to 10 kt. Seas around 2 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ235-241200- Rhode Island Sound- 716 PM EDT Sat Mar 23 2019 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 5 AM EDT SUNDAY... .TONIGHT...NW winds 15 to 20 kt with gusts up to 30 kt. Seas 3 to 5 ft. .SUN...W winds 10 to 15 kt, becoming SW 15 to 20 kt in the afternoon. Gusts up to 30 kt. Seas 3 to 5 ft. .SUN NIGHT...SW winds 15 to 20 kt, diminishing to 10 to 15 kt after midnight. Seas 3 to 5 ft. A chance of rain. .MON...W winds 5 to 10 kt, becoming N in the afternoon. Seas 2 to 4 ft. A chance of rain. .MON NIGHT...NE winds 5 to 10 kt, becoming N 10 to 15 kt with gusts up to 20 kt after midnight. Seas 2 to 3 ft. .TUE...N 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. .TUE NIGHT...NE winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. .WED...NE winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. .WED NIGHT...E winds 5 to 10 kt. Seas around 2 ft. .THU...SE winds 5 to 10 kt. Seas 2 to 3 ft. .THU NIGHT...S 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. $$ ANZ237-241200- Block Island Sound- 716 PM EDT Sat Mar 23 2019 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 5 AM EDT SUNDAY... .TONIGHT...NW winds 15 to 20 kt with gusts up to 30 kt. Seas 3 to 5 ft. .SUN...W winds 10 to 15 kt, becoming SW 15 to 20 kt in the afternoon. Gusts up to 25 kt. Seas 2 to 4 ft. .SUN NIGHT...SW winds 10 to 15 kt, diminishing to 5 to 10 kt after midnight. Gusts up to 20 kt. Seas 2 to 4 ft. A chance of rain. .MON...W winds 5 to 10 kt, becoming N in the afternoon. Seas 2 to 4 ft. A chance of rain. .MON NIGHT...N winds 5 to 10 kt, increasing to 10 to 15 kt with gusts up to 20 kt after midnight. Seas 2 to 3 ft. .TUE...N winds 10 to 15 kt, diminishing to 5 to 10 kt in the afternoon. Seas 2 to 4 ft. .TUE NIGHT...NE winds 5 to 10 kt. Gusts up to 20 kt after midnight. Seas 2 to 3 ft. .WED...NE winds around 10 kt with gusts up to 20 kt. Seas 2 to 3 ft. .WED NIGHT...E winds 5 to 10 kt. Seas around 2 ft. .THU...E winds 5 to 10 kt. Seas 2 to 3 ft. .THU NIGHT...S winds 5 to 10 kt. Seas 2 to 3 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ230-241200- Boston Harbor- 716 PM EDT Sat Mar 23 2019 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 3 AM EDT SUNDAY... .TONIGHT...NW winds 15 to 20 kt, becoming W 10 to 15 kt after midnight. Gusts up to 30 kt. Waves around 2 ft. .SUN...W winds 10 to 15 kt with gusts up to 20 kt. Waves around 2 ft. .SUN NIGHT...W winds 5 to 10 kt. Waves 1 foot or less. A chance of rain. .MON...NW winds 5 to 10 kt. Waves 1 foot or less. .MON NIGHT...N winds 5 to 10 kt. Waves around 2 ft. .TUE...N winds 5 to 10 kt. Waves around 2 ft. .TUE NIGHT...N winds 5 to 10 kt. Waves 1 foot or less. .WED...NE winds 5 to 10 kt. Waves 1 foot or less. .WED NIGHT...S winds around 5 kt. Waves 1 foot or less. .THU...S 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. $$ ANZ236-241200- Narragansett Bay- 716 PM EDT Sat Mar 23 2019 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 3 AM EDT SUNDAY... .TONIGHT...NW winds 15 to 20 kt, becoming W 10 to 15 kt after midnight. Gusts up to 30 kt. Waves 2 to 3 ft. .SUN...W winds 10 to 15 kt with gusts up to 25 kt. Waves 2 to 3 ft. .SUN NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt, diminishing to 5 to 10 kt after midnight. Waves 2 to 3 ft. A chance of rain. .MON...N winds 5 to 10 kt. Waves 2 to 3 ft. A chance of rain. .MON NIGHT...N winds 5 to 10 kt. Waves around 2 ft. .TUE...N winds 5 to 10 kt. Waves around 2 ft. .TUE NIGHT...N winds 5 to 10 kt. Waves around 2 ft. .WED...NE winds 5 to 10 kt. Waves 1 foot or less. .WED NIGHT...E winds 5 to 10 kt. Waves around 2 ft. .THU...SE winds around 5 kt. Waves around 2 ft. .THU NIGHT...S winds around 5 kt. Waves around 2 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ 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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