Coastal Waters Forecast
Issued by NWS Boston, MA

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000 FZUS51 KBOX 230516 CWFBOX Coastal Waters Forecast National Weather Service Boston/Norton MA 116 AM EDT Wed May 23 2018 Coastal waters from the Merrimack River MA to Watch Hill RI out to 25 NM ANZ200-231800- 116 AM EDT Wed May 23 2018 .Synopsis for Massachusetts and Rhode Island coastal waters... Low pressure will track across northern New England overnight. A cold front will move southward across the waters Wed. High pres builds over the waters Thu and moves the SE of the waters Fri. 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. $$ ANZ250-231800- Coastal waters east of Ipswich Bay and the Stellwagen Bank National Marine Sanctuary- 116 AM EDT Wed May 23 2018 .REST OF TONIGHT...SW winds 5 to 10 kt. Seas around 2 ft. A slight chance of showers. .WED...SW winds 5 to 10 kt. Seas around 2 ft. .WED NIGHT...NW winds 5 to 10 kt, becoming NE with gusts up to 20 kt after midnight. Seas 2 to 3 ft. .THU...NE winds 5 to 10 kt, becoming SE 10 to 15 kt with gusts up to 20 kt in the afternoon. Seas 2 to 3 ft. .THU NIGHT...S winds 15 to 20 kt, becoming SW 10 to 15 kt after midnight. Gusts up to 25 kt. Seas 2 to 4 ft. .FRI...SW winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 4 ft. .FRI NIGHT...SW winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 4 ft. .SAT...S winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. A chance of showers. .SAT NIGHT...E winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. A chance of showers. Vsby 1 to 3 NM. .SUN...E winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 5 ft. A chance of showers. Vsby 1 to 3 NM. .SUN NIGHT...E winds 5 to 10 kt with gusts up to 20 kt. Seas 4 to 7 ft. A chance of showers. Vsby 1 to 3 NM. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ251-231800- Massachusetts Bay and Ipswich Bay- 116 AM EDT Wed May 23 2018 .REST OF TONIGHT...SW winds 5 to 10 kt. Seas around 2 ft. A slight chance of showers. .WED...W winds 5 to 10 kt, becoming S in the afternoon. Seas around 2 ft. .WED NIGHT...NW winds 5 to 10 kt, becoming NE after midnight. Seas around 2 ft. .THU...E winds around 5 kt, becoming SE 10 to 15 kt with gusts up to 20 kt in the afternoon. Seas 2 to 3 ft. .THU NIGHT...S winds 10 to 15 kt, becoming SW 5 to 10 kt after midnight. Gusts up to 25 kt. Seas 2 to 3 ft. .FRI...SW winds 5 to 10 kt. Gusts up to 20 kt in the morning. Seas around 2 ft. .FRI NIGHT...SW winds 5 to 10 kt. Gusts up to 20 kt in the evening. Seas around 2 ft. .SAT...SW winds 5 to 10 kt. Seas around 2 ft. A chance of showers. .SAT NIGHT...E winds 5 to 10 kt. Seas 2 to 3 ft. A chance of showers. Vsby 1 to 3 NM. .SUN...E winds 5 to 10 kt. Seas 2 to 4 ft. A chance of showers. Vsby 1 to 3 NM. .SUN NIGHT...E winds 5 to 10 kt. Seas 3 to 5 ft. A chance of showers. Vsby 1 to 3 NM. 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. $$ ANZ231-231800- Cape Cod Bay- 116 AM EDT Wed May 23 2018 .REST OF TONIGHT...SW winds around 5 kt. Seas 1 to 2 ft. A chance of showers. .WED...W winds 5 to 10 kt. Seas around 2 ft. A chance of showers. .WED NIGHT...W winds 5 to 10 kt, becoming NE after midnight. Seas around 2 ft. .THU...NE winds around 5 kt, becoming SE in the afternoon. Seas around 2 ft. .THU NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft. .FRI...SW winds 10 to 15 kt with gusts up to 25 kt. Seas around 2 ft. .FRI NIGHT...SW winds 10 to 15 kt with gusts up to 25 kt. Seas around 2 ft. .SAT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft. .SAT NIGHT...SE winds 5 to 10 kt. Seas around 2 ft. A chance of showers. Vsby 1 to 3 NM. .SUN...E winds 5 to 10 kt. Seas 2 to 3 ft. A chance of showers. Vsby 1 to 3 NM. .SUN NIGHT...E winds 5 to 10 kt. Seas 2 to 3 ft. A chance of showers. Vsby 1 to 3 NM. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ254-231800- Coastal waters from Provincetown MA to Chatham MA to Nantucket MA out 20 nm- 116 AM EDT Wed May 23 2018 .REST OF TONIGHT...S winds around 5 kt. Seas 2 to 3 ft. Patchy fog. A chance of showers. Vsby 1 NM or less. .WED...W winds 5 to 10 kt. Seas 2 to 3 ft. Patchy fog. A chance of showers. Vsby 1 NM or less. .WED NIGHT...W winds 5 to 10 kt, becoming NE 10 to 15 kt after midnight. Seas 2 to 4 ft. Patchy fog. Vsby 1 NM or less. .THU...NE winds 5 to 10 kt, becoming SE in the afternoon. Seas 2 to 4 ft. .THU NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. .FRI...SW winds 10 to 15 kt, increasing to 15 to 20 kt in the afternoon. Gusts up to 25 kt. Seas 3 to 5 ft. .FRI NIGHT...SW winds 15 to 20 kt with gusts up to 30 kt. Seas 3 to 5 ft. .SAT...SW winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 4 ft. .SAT NIGHT...SE winds 5 to 10 kt with gusts up to 20 kt. Seas 2 to 4 ft. Patchy fog. A chance of showers. Vsby 1 to 3 NM. .SUN...E winds around 10 kt with gusts up to 20 kt. Seas 3 to 5 ft. Patchy fog. A chance of showers. Vsby 1 to 3 NM. .SUN NIGHT...E winds 5 to 10 kt. Seas 3 to 5 ft. Patchy fog. A chance of showers. Vsby 1 to 3 NM. 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. $$ ANZ255-231800- Coastal Waters extending out to 25 nm South of Marthas Vineyard and Nantucket- 116 AM EDT Wed May 23 2018 .REST OF TONIGHT...S winds around 5 kt. Seas 2 to 4 ft. Patchy fog. A chance of showers. Vsby 1 NM or less. .WED...W winds 5 to 10 kt. Seas 2 to 3 ft. Patchy fog. A chance of showers. Vsby 1 NM or less. .WED NIGHT...W winds 5 to 10 kt, becoming N after midnight. Seas 2 to 4 ft. Patchy fog. Vsby 1 NM or less. .THU...NE winds 5 to 10 kt, becoming SE in the afternoon. Seas 2 to 4 ft. .THU NIGHT...S winds 5 to 10 kt, becoming SW 10 to 15 kt with gusts up to 20 kt after midnight. Seas 2 to 4 ft. .FRI...SW winds 10 to 15 kt, increasing to 15 to 20 kt in the afternoon. Gusts up to 25 kt. Seas 3 to 5 ft. .FRI NIGHT...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to 5 ft. .SAT...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to 5 ft. .SAT NIGHT...SW winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 4 ft. Patchy fog. A chance of showers. Vsby 1 to 3 NM. .SUN...E winds 5 to 10 kt. Seas 2 to 4 ft. Patchy fog. A chance of showers. Vsby 1 to 3 NM. .SUN NIGHT...E winds around 10 kt. Seas 2 to 4 ft. Patchy fog. A chance of showers. Vsby 1 to 3 NM. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ256-231800- Coastal Waters from Montauk NY to Marthas Vineyard extending out to 20 nm South of Block Island- 116 AM EDT Wed May 23 2018 .REST OF TONIGHT...SW winds around 5 kt. Seas 2 to 3 ft. Patchy fog. A chance of showers. Vsby 1 NM or less. .WED...W winds 5 to 10 kt. Seas 2 to 3 ft. Patchy fog. A chance of showers. Vsby 1 NM or less. .WED NIGHT...W winds 5 to 10 kt, becoming N after midnight. Seas 3 to 4 ft. .THU...NE winds 5 to 10 kt, becoming SE in the afternoon. Seas 2 to 4 ft. .THU NIGHT...SW winds 10 to 15 kt. Gusts up to 20 kt after midnight. Seas 2 to 3 ft. .FRI...SW winds 10 to 15 kt, increasing to 15 to 20 kt in the afternoon. Gusts up to 25 kt. Seas 3 to 5 ft. .FRI NIGHT...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to 5 ft. .SAT...SW winds 10 to 15 kt with gusts up to 25 kt. Seas 3 to 5 ft. .SAT NIGHT...SW winds 10 to 15 kt with gusts up to 25 kt. Seas 3 to 4 ft. Patchy fog. A chance of showers. Vsby 1 to 3 NM. .SUN...E winds 5 to 10 kt. Seas 2 to 3 ft. A chance of showers. Vsby 1 to 3 NM. .SUN NIGHT...E winds around 10 kt. Seas 2 to 4 ft. A chance of showers. Vsby 1 to 3 NM. 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. $$ ANZ232-231800- Nantucket Sound- 116 AM EDT Wed May 23 2018 .REST OF TONIGHT...SW winds around 5 kt. Seas 1 to 2 ft. A slight chance of showers. Vsby 1 to 3 NM. .WED...SW winds 5 to 10 kt. Seas 1 to 2 ft. Patchy fog. A chance of showers. Vsby 1 NM or less. .WED NIGHT...W winds 5 to 10 kt, becoming NE after midnight. Seas around 2 ft. .THU...NE winds 5 to 10 kt, becoming SE in the afternoon. Seas 2 to 3 ft. .THU NIGHT...SW winds 10 to 15 kt. Gusts up to 20 kt after midnight. Seas around 2 ft. .FRI...SW winds 10 to 15 kt, increasing to 15 to 20 kt in the afternoon. Gusts up to 25 kt. Seas 2 to 4 ft. .FRI NIGHT...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 3 ft. .SAT...SW winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 3 ft. .SAT NIGHT...S winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Patchy fog. A chance of showers. Vsby 1 to 3 NM. .SUN...E winds 5 to 10 kt. Seas around 2 ft. A chance of showers. Vsby 1 to 3 NM. .SUN NIGHT...E winds 5 to 10 kt. Seas 2 to 3 ft. A chance of showers. Vsby 1 to 3 NM. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ233-231800- Vineyard Sound- 116 AM EDT Wed May 23 2018 .REST OF TONIGHT...SW winds around 5 kt. Seas around 2 ft. A chance of showers. .WED...SW winds 5 to 10 kt. Seas around 2 ft. Patchy fog. A chance of showers. Vsby 1 NM or less. .WED NIGHT...W winds 5 to 10 kt, becoming N after midnight. Seas 1 to 2 ft. .THU...NE winds around 5 kt, becoming SE in the afternoon. Seas around 2 ft. .THU NIGHT...SW winds 10 to 15 kt. Gusts up to 20 kt after midnight. Seas around 2 ft. .FRI...SW winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 4 ft. .FRI NIGHT...SW winds around 15 kt with gusts up to 25 kt. Seas 2 to 4 ft. .SAT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. .SAT NIGHT...SW winds 5 to 10 kt with gusts up to 20 kt. Seas 2 to 3 ft. A chance of showers. Vsby 1 to 3 NM. .SUN...E winds 5 to 10 kt. Seas around 2 ft. A chance of showers. Vsby 1 to 3 NM. .SUN NIGHT...E winds 5 to 10 kt. Seas around 2 ft. A chance of showers. Vsby 1 to 3 NM. 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. $$ ANZ234-231800- Buzzards Bay- 116 AM EDT Wed May 23 2018 .REST OF TONIGHT...SW winds around 5 kt. Seas around 2 ft. A slight chance of showers. Vsby 1 to 3 NM. .WED...SW winds 5 to 10 kt. Seas around 2 ft. Patchy fog. A chance of showers. Vsby 1 NM or less. .WED NIGHT...W winds 5 to 10 kt, becoming N after midnight. Seas around 2 ft. .THU...NE winds around 5 kt, becoming SE in the afternoon. Seas around 2 ft. .THU NIGHT...SW winds around 10 kt. Gusts up to 20 kt after midnight. Seas around 2 ft. .FRI...SW winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 3 ft. .FRI NIGHT...SW winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 3 ft. .SAT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft. .SAT NIGHT...S winds 5 to 10 kt. Seas around 2 ft. A chance of showers. Vsby 1 to 3 NM. .SUN...E winds 5 to 10 kt. Seas 1 foot or less. A chance of showers. .SUN NIGHT...NE winds 5 to 10 kt. Seas 1 foot or less. A chance of showers. Vsby 1 to 3 NM. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ235-231800- Rhode Island Sound- 116 AM EDT Wed May 23 2018 .REST OF TONIGHT...SW winds around 5 kt. Seas around 2 ft. A slight chance of showers. Vsby 1 NM or less. .WED...SW winds 5 to 10 kt. Seas 2 to 3 ft. Patchy fog. A chance of showers. Vsby 1 NM or less. .WED NIGHT...W winds 5 to 10 kt, becoming N after midnight. Seas 2 to 4 ft. .THU...NE winds around 5 kt, becoming SE in the afternoon. Seas 2 to 3 ft. .THU NIGHT...SW winds 10 to 15 kt. Gusts up to 20 kt after midnight. Seas 2 to 3 ft. .FRI...SW winds 10 to 15 kt, increasing to 15 to 20 kt in the afternoon. Gusts up to 25 kt. Seas 2 to 4 ft. .FRI NIGHT...SW winds 15 to 20 kt, diminishing to 10 to 15 kt after midnight. Gusts up to 25 kt. Seas 2 to 4 ft. .SAT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. .SAT NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. A chance of showers. Vsby 1 to 3 NM. .SUN...E winds 5 to 10 kt. Seas around 2 ft. A chance of showers. Vsby 1 to 3 NM. .SUN NIGHT...NE winds 5 to 10 kt. Seas around 2 ft. A chance of showers. Vsby 1 to 3 NM. 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. $$ ANZ237-231800- Block Island Sound- 116 AM EDT Wed May 23 2018 .REST OF TONIGHT...SW winds around 5 kt. Seas around 2 ft. Patchy fog. A chance of showers. Vsby 1 NM or less. .WED...SW winds 5 to 10 kt. Seas around 2 ft. Patchy fog. A chance of showers. Vsby 1 NM or less. .WED NIGHT...W winds 5 to 10 kt, becoming N after midnight. Seas 2 to 4 ft. .THU...NE winds around 5 kt, becoming SE in the afternoon. Seas 2 to 3 ft. Patchy dense fog. Vsby 1 NM or less. .THU NIGHT...SW winds 5 to 10 kt. Gusts up to 20 kt after midnight. Seas 2 to 3 ft. .FRI...SW winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 4 ft. .FRI NIGHT...SW winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 4 ft. .SAT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. .SAT NIGHT...S winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. A chance of showers. Vsby 1 to 3 NM. .SUN...E winds 5 to 10 kt. Seas around 2 ft. A chance of showers. Vsby 1 to 3 NM. .SUN NIGHT...E winds 5 to 10 kt. Seas around 2 ft. A chance of showers. Vsby 1 to 3 NM. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ230-231800- Boston Harbor- 116 AM EDT Wed May 23 2018 .REST OF TONIGHT...SW winds 5 to 10 kt. Waves 1 foot or less. A slight chance of showers. .WED...W winds 5 to 10 kt, becoming E in the afternoon. Waves 1 foot or less. .WED NIGHT...NW winds 5 to 10 kt, becoming NE after midnight. Waves 1 foot or less. .THU...E winds 5 to 10 kt, becoming SE 10 to 15 kt in the afternoon. Waves 1 foot or less. .THU NIGHT...S winds 10 to 15 kt with gusts up to 20 kt, becoming SW 5 to 10 kt after midnight. Waves 1 foot or less. .FRI...W winds 5 to 10 kt. Waves 1 foot or less. .FRI NIGHT...SW winds 5 to 10 kt. Waves 1 foot or less. .SAT...W winds around 5 kt. Waves 1 foot or less. A chance of showers. .SAT NIGHT...E winds 5 to 10 kt. Waves 1 foot or less. A chance of showers. .SUN...NE winds 5 to 10 kt. Waves 1 foot or less. A chance of showers. .SUN NIGHT...E winds around 5 kt. Waves 1 foot or less. A chance of showers. Vsby 1 to 3 NM. 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. $$ ANZ236-231800- Narragansett Bay- 116 AM EDT Wed May 23 2018 .REST OF TONIGHT...SW winds around 5 kt. Waves around 2 ft. A chance of showers. Vsby 1 to 3 NM. .WED...W winds 5 to 10 kt. Waves 1 to 2 ft. A chance of showers. Vsby 1 NM or less. .WED NIGHT...W winds around 5 kt, becoming N after midnight. Waves 2 to 3 ft. .THU...NE winds around 5 kt, becoming S in the afternoon. Waves around 2 ft. .THU NIGHT...SW winds 5 to 10 kt. Waves around 2 ft. .FRI...SW winds 5 to 10 kt, increasing to 10 to 15 kt with gusts up to 20 kt in the afternoon. Waves around 2 ft. .FRI NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Waves around 2 ft. .SAT...SW winds 5 to 10 kt with gusts up to 20 kt. Waves around 2 ft. .SAT NIGHT...SE winds 5 to 10 kt. Waves around 2 ft. A chance of showers. Vsby 1 to 3 NM. .SUN...E winds 5 to 10 kt. Waves around 2 ft. A chance of showers. .SUN NIGHT...NE winds 5 to 10 kt. Waves 1 foot or less. A chance of showers. Vsby 1 to 3 NM. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ 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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