Coastal Waters Forecast
Issued by NWS Boston, MA

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000 FZUS51 KBOX 151716 CWFBOX Coastal Waters Forecast National Weather Service Boston/Norton MA 116 PM EDT Tue May 15 2018 Coastal waters from the Merrimack River MA to Watch Hill RI out to 25 NM ANZ200-160600- 116 PM EDT Tue May 15 2018 .Synopsis for Massachusetts and Rhode Island coastal waters... A cold front will bring showers and possible thunderstorms to the waters later this afternoon into Wednesday. Drier weather moves back over the waters Thursday. More showers or thunderstorms are possible on Friday into Saturday. 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. $$ ANZ250-160600- Coastal waters east of Ipswich Bay and the Stellwagen Bank National Marine Sanctuary- 116 PM EDT Tue May 15 2018 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 7 PM EDT THIS EVENING... .THIS AFTERNOON...S winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 4 ft. A chance of showers with a slight chance of tstms. Some tstms may produce gusty winds and heavy rainfall. Vsby 1 NM or less. .TONIGHT...N winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. Areas of fog. Showers likely with a chance of tstms. Some tstms may produce gusty winds and heavy rainfall. Vsby 1 NM or less. .WED...NE winds 10 to 15 kt with gusts up to 20 kt, becoming E 5 to 10 kt in the afternoon. Seas 2 to 4 ft. .WED NIGHT...E winds 5 to 10 kt. Seas 2 to 4 ft. .THU...W winds around 5 kt, becoming SE in the afternoon. Seas 2 to 3 ft. .THU NIGHT...SE winds 5 to 10 kt, becoming E after midnight. Seas 2 to 3 ft. .FRI...NE winds around 10 kt with gusts up to 20 kt. Seas 2 to 4 ft. .FRI NIGHT...E winds 5 to 10 kt. Seas 2 to 3 ft. Showers likely. .SAT...SE winds 5 to 10 kt. Seas 2 to 4 ft. Showers. .SAT NIGHT...S winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. Showers. Winds and seas higher in and near tstms. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ251-160600- Massachusetts Bay and Ipswich Bay- 116 PM EDT Tue May 15 2018 .THIS AFTERNOON...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. A chance of showers with a slight chance of tstms. Some tstms may produce gusty winds and heavy rainfall. Vsby 1 to 3 NM. .TONIGHT...N winds 5 to 10 kt. Seas around 2 ft. Areas of fog. A chance of showers and tstms. Some tstms may produce gusty winds and heavy rainfall. Vsby 1 NM or less. .WED...NE winds 10 to 15 kt with gusts up to 20 kt, becoming E 5 to 10 kt in the afternoon. Seas 2 to 3 ft. .WED NIGHT...E winds 5 to 10 kt, diminishing to around 5 kt after midnight. Seas 2 to 3 ft. .THU...W winds around 5 kt, becoming SE in the afternoon. Seas around 2 ft. .THU NIGHT...SE winds around 5 kt, becoming E after midnight. Seas around 2 ft. .FRI...NE winds 5 to 10 kt with gusts up to 20 kt. Seas 2 to 4 ft. .FRI NIGHT...E winds 5 to 10 kt. Seas 2 to 3 ft. Showers likely. .SAT...E winds 5 to 10 kt. Seas around 2 ft. Showers. .SAT NIGHT...S winds 5 to 10 kt. Seas 2 to 3 ft. 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. $$ ANZ231-160600- Cape Cod Bay- 116 PM EDT Tue May 15 2018 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 7 PM EDT THIS EVENING... .THIS AFTERNOON...SW winds around 15 kt with gusts up to 25 kt. Seas 2 to 3 ft. A chance of showers with a slight chance of tstms. Some tstms may produce gusty winds and heavy rainfall. .TONIGHT...NW winds 10 to 15 kt with gusts up to 20 kt, becoming N 5 to 10 kt after midnight. Seas around 2 ft. Patchy fog. Showers likely with a chance of tstms. Some tstms may produce gusty winds and heavy rainfall. Vsby 1 NM or less. .WED...NE winds 5 to 10 kt. Gusts up to 20 kt in the morning. Seas 2 to 3 ft. Patchy fog. Vsby 1 to 3 NM. .WED NIGHT...E winds 5 to 10 kt. Seas 2 to 3 ft. A chance of showers. Vsby 1 NM or less. .THU...N winds around 5 kt, becoming E in the afternoon. Seas around 2 ft. .THU NIGHT...E winds 5 to 10 kt. Seas 1 foot or less. .FRI...NE winds 5 to 10 kt with gusts up to 20 kt. Seas 2 to 3 ft. .FRI NIGHT...E winds 5 to 10 kt. Seas around 2 ft. Showers likely. .SAT...SE winds 5 to 10 kt. Seas around 2 ft. Showers. .SAT NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Showers. Winds and seas higher in and near tstms. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ254-160600- Coastal waters from Provincetown MA to Chatham MA to Nantucket MA out 20 nm- 116 PM EDT Tue May 15 2018 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL MIDNIGHT EDT TONIGHT... .THIS AFTERNOON...SW winds 10 to 15 kt with gusts up to 25 kt. Seas 3 to 5 ft. Areas of dense fog. A slight chance of showers with isolated tstms. Some tstms may produce gusty winds and heavy rainfall. Vsby 1 NM or less. .TONIGHT...W winds 10 to 15 kt with gusts up to 25 kt, becoming N 5 to 10 kt after midnight. Seas 3 to 5 ft. Patchy fog. A chance of showers. Vsby 1 NM or less. .WED...NE winds 10 to 15 kt, becoming E 5 to 10 kt in the afternoon. Gusts up to 20 kt. Seas 3 to 5 ft. Patchy fog. A chance of showers. Vsby 1 NM or less. .WED NIGHT...E winds 5 to 10 kt. Seas 3 to 5 ft. Patchy fog. A chance of showers. Vsby 1 to 3 NM. .THU...N winds around 5 kt. Seas 2 to 4 ft. A chance of showers. .THU NIGHT...E winds 5 to 10 kt. Seas 2 to 4 ft. .FRI...E winds 5 to 10 kt with gusts up to 20 kt. Seas 2 to 4 ft. .FRI NIGHT...E winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. Showers likely. .SAT...SE winds around 10 kt with gusts up to 20 kt. Seas 2 to 4 ft. Showers. .SAT NIGHT...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to 5 ft. 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. $$ ANZ255-160600- Coastal Waters extending out to 25 nm South of Marthas Vineyard and Nantucket- 116 PM EDT Tue May 15 2018 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH WEDNESDAY MORNING... .THIS AFTERNOON...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to 5 ft. Areas of fog. Vsby 1 NM or less. .TONIGHT...SW winds 15 to 20 kt with gusts up to 25 kt, becoming N 5 to 10 kt after midnight. Seas 3 to 5 ft. Areas of fog. A chance of showers. Vsby 1 NM or less. .WED...NE winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 5 ft. Patchy fog. A chance of showers. Vsby 1 NM or less. .WED NIGHT...E winds 5 to 10 kt. Seas 3 to 5 ft. Patchy fog. Showers likely. Vsby 1 to 3 NM. .THU...N winds around 5 kt, becoming E in the afternoon. Seas 2 to 4 ft. A chance of showers. .THU NIGHT...E winds 5 to 10 kt. Seas 2 to 4 ft. .FRI...E winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 4 ft. A chance of showers. .FRI NIGHT...E winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 5 ft. Showers likely. .SAT...S winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 5 ft. Showers likely. .SAT NIGHT...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 4 to 6 ft. Showers. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ256-160600- Coastal Waters from Montauk NY to Marthas Vineyard extending out to 20 nm South of Block Island- 116 PM EDT Tue May 15 2018 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH WEDNESDAY MORNING... .THIS AFTERNOON...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 4 to 5 ft. Areas of fog. Vsby 1 NM or less. .TONIGHT...SW winds 15 to 20 kt with gusts up to 25 kt, becoming N 5 to 10 kt after midnight. Seas 4 to 5 ft. Areas of fog. A chance of showers. Vsby 1 NM or less. .WED...NE winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 5 ft. Patchy fog. Showers likely. Vsby 1 to 3 NM. .WED NIGHT...NE winds 5 to 10 kt. Seas 3 to 5 ft. Patchy fog. Showers likely. Vsby 1 to 3 NM. .THU...N winds around 5 kt, becoming SE in the afternoon. Seas around 3 ft. A chance of showers. .THU NIGHT...E winds 5 to 10 kt. Seas 3 to 4 ft. .FRI...E winds 10 to 15 kt with gusts up to 25 kt. Seas 3 to 5 ft. A chance of showers. .FRI NIGHT...E winds 10 to 15 kt with gusts up to 25 kt. Seas 3 to 5 ft. Showers. .SAT...SE winds 5 to 10 kt with gusts up to 25 kt. Seas 4 to 6 ft. Showers. .SAT NIGHT...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 4 to 6 ft. Showers. 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. $$ ANZ232-160600- Nantucket Sound- 116 PM EDT Tue May 15 2018 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 7 PM EDT THIS EVENING... .THIS AFTERNOON...SW winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 3 ft. Areas of fog. Vsby 1 NM or less. .TONIGHT...W winds 10 to 15 kt with gusts up to 20 kt, becoming N 5 to 10 kt after midnight. Seas 2 to 3 ft. Patchy fog. A chance of showers. Vsby 1 NM or less. .WED...NE winds 10 to 15 kt, becoming E 5 to 10 kt in the afternoon. Gusts up to 20 kt. Seas 2 to 3 ft. Patchy fog. A chance of showers. Vsby 1 NM or less. .WED NIGHT...NE winds 5 to 10 kt. Seas 2 to 3 ft. A chance of showers. Vsby 1 to 3 NM. .THU...N winds around 5 kt, becoming SE in the afternoon. Seas around 2 ft. A chance of showers. .THU NIGHT...SE winds 5 to 10 kt. Seas 2 to 3 ft. .FRI...E winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. A chance of showers. .FRI NIGHT...E winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Showers. .SAT...SE winds around 10 kt. Seas 2 to 3 ft. Showers. .SAT NIGHT...SW winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 4 ft. Showers. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ233-160600- Vineyard Sound- 116 PM EDT Tue May 15 2018 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 7 PM EDT THIS EVENING... .THIS AFTERNOON...SW winds around 15 kt with gusts up to 25 kt. Seas 2 to 3 ft. Areas of fog. A slight chance of showers with isolated tstms. Some tstms may produce gusty winds and heavy rainfall. Vsby 1 NM or less. .TONIGHT...W winds 10 to 15 kt with gusts up to 20 kt, becoming N 5 to 10 kt after midnight. Seas 2 to 3 ft. Areas of fog. A chance of showers and tstms. Some tstms may produce gusty winds and heavy rainfall. Vsby 1 NM or less. .WED...NE winds 5 to 10 kt. Seas 2 to 3 ft. Patchy fog. A chance of showers. Vsby 1 to 3 NM. .WED NIGHT...NE winds 5 to 10 kt. Seas around 2 ft. A chance of showers. Vsby 1 to 3 NM. .THU...N winds around 5 kt, becoming SE in the afternoon. Seas around 2 ft. A chance of showers. .THU NIGHT...SE winds around 5 kt, becoming E after midnight. Seas around 2 ft. .FRI...NE winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. A chance of showers. .FRI NIGHT...E winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft. Showers. .SAT...SE winds around 10 kt. Seas around 2 ft. Showers. .SAT NIGHT...SW winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 4 ft. 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. $$ ANZ234-160600- Buzzards Bay- 116 PM EDT Tue May 15 2018 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 7 PM EDT THIS EVENING... .THIS AFTERNOON...SW winds around 15 kt with gusts up to 25 kt. Seas 2 to 3 ft. Areas of fog. A slight chance of showers with isolated tstms. Some tstms may produce gusty winds and heavy rainfall. Vsby 1 NM or less. .TONIGHT...W winds 10 to 15 kt with gusts up to 20 kt, becoming NE around 5 kt after midnight. Seas 2 to 3 ft. Areas of fog. A chance of tstms. Some tstms may produce gusty winds and heavy rainfall. Vsby 1 NM or less. .WED...NE winds 5 to 10 kt. Seas 2 to 3 ft. Patchy fog. A chance of showers. Vsby 1 to 3 NM. .WED NIGHT...E winds 5 to 10 kt, becoming NE after midnight. Seas around 2 ft. A chance of showers. Vsby 1 NM or less. .THU...N winds around 5 kt, becoming SE in the afternoon. Seas around 2 ft. A chance of showers. .THU NIGHT...S winds around 5 kt, becoming E after midnight. Seas around 2 ft. .FRI...NE winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. A chance of showers. .FRI NIGHT...E winds 5 to 10 kt with gusts up to 20 kt. Seas around 2 ft. Showers. .SAT...SE winds 5 to 10 kt with gusts up to 20 kt. Seas 1 foot or less. Showers. .SAT NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Showers. Winds and seas higher in and near tstms. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ235-160600- Rhode Island Sound- 116 PM EDT Tue May 15 2018 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 7 PM EDT THIS EVENING... .THIS AFTERNOON...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 4 ft. Areas of fog. A slight chance of showers with isolated tstms. Some tstms may produce gusty winds and heavy rainfall. Vsby 1 NM or less. .TONIGHT...W winds 15 to 20 kt with gusts up to 25 kt, becoming NE 5 to 10 kt after midnight. Seas 2 to 4 ft. Patchy fog. A chance of showers and tstms. Some tstms may produce gusty winds and heavy rainfall. Vsby 1 NM or less. .WED...NE winds 10 to 15 kt. Gusts up to 20 kt in the morning. Seas 2 to 4 ft. Patchy fog. A chance of showers. Vsby 1 to 3 NM. .WED NIGHT...NE winds 5 to 10 kt. Seas 2 to 4 ft. Patchy fog. A chance of showers. Vsby 1 to 3 NM. .THU...N winds around 5 kt, becoming S in the afternoon. Seas 2 to 3 ft. A chance of showers. .THU NIGHT...S winds around 5 kt, becoming E after midnight. Seas 3 to 4 ft. .FRI...NE winds 10 to 15 kt with gusts up to 25 kt. Seas 3 to 5 ft. A chance of showers. .FRI NIGHT...E winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 4 ft. Showers. .SAT...SE winds 5 to 10 kt with gusts up to 25 kt. Seas 3 to 5 ft. Showers. .SAT NIGHT...SW winds 10 to 15 kt with gusts up to 25 kt. Seas 3 to 5 ft. 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. $$ ANZ237-160600- Block Island Sound- 116 PM EDT Tue May 15 2018 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 7 PM EDT THIS EVENING... .THIS AFTERNOON...SW winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 4 ft. Areas of fog. A slight chance of showers with isolated tstms. Some tstms may produce gusty winds and heavy rainfall. Vsby 1 NM or less. .TONIGHT...W winds 10 to 15 kt with gusts up to 20 kt, becoming NE around 5 kt after midnight. Seas 2 to 4 ft. Areas of fog. A chance of showers and tstms. Some tstms may produce gusty winds and heavy rainfall. Vsby 1 NM or less. .WED...NE winds 5 to 10 kt with gusts up to 20 kt. Seas 2 to 4 ft. A chance of showers. Vsby 1 to 3 NM. .WED NIGHT...NE winds 5 to 10 kt. Seas 2 to 4 ft. Patchy fog. A chance of showers. Vsby 1 to 3 NM. .THU...N winds around 5 kt, becoming S in the afternoon. Seas 2 to 3 ft. A chance of showers. .THU NIGHT...S winds around 5 kt, becoming E after midnight. Seas 2 to 4 ft. .FRI...E winds 10 to 15 kt with gusts up to 25 kt. Seas 3 to 5 ft. A chance of showers. .FRI NIGHT...E winds 10 to 15 kt with gusts up to 25 kt. Seas 3 to 5 ft. Showers. .SAT...SE winds 5 to 10 kt with gusts up to 25 kt. Seas 3 to 5 ft. Showers. .SAT NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 5 ft. Showers. Winds and seas higher in and near tstms. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ230-160600- Boston Harbor- 116 PM EDT Tue May 15 2018 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 7 PM EDT THIS EVENING... .THIS AFTERNOON...SW winds 10 to 15 kt with gusts up to 20 kt. Waves around 2 ft. Showers likely with a chance of tstms. Some tstms may produce gusty winds and heavy rainfall. .TONIGHT...N winds 5 to 10 kt. Waves 1 foot or less. A chance of showers and tstms. Some tstms may produce gusty winds and heavy rainfall. Vsby 1 NM or less. .WED...NE winds 5 to 10 kt. Waves around 2 ft. .WED NIGHT...NE winds around 5 kt. Waves around 2 ft. .THU...NW winds around 5 kt, becoming NE in the afternoon. Waves 1 foot or less. .THU NIGHT...SE winds around 5 kt, becoming NE after midnight. Waves around 2 ft. .FRI...NE winds 5 to 10 kt. Waves 2 to 3 ft. .FRI NIGHT...E winds around 5 kt. Waves 1 foot or less. Showers. .SAT...E winds around 5 kt. Waves 1 foot or less. Showers. .SAT NIGHT...S winds around 5 kt. Waves 1 foot or less. Showers. 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. $$ ANZ236-160600- Narragansett Bay- 116 PM EDT Tue May 15 2018 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 7 PM EDT THIS EVENING... .THIS AFTERNOON...SW winds 10 to 15 kt with gusts up to 20 kt. Waves 2 to 3 ft. A chance of showers with a slight chance of tstms. Some tstms may produce gusty winds and heavy rainfall. Vsby 1 to 3 NM. .TONIGHT...W winds 5 to 10 kt with gusts up to 20 kt, becoming NE after midnight. Waves 2 to 3 ft. Areas of fog. Showers likely with a chance of tstms. Some tstms may produce gusty winds and heavy rainfall. Vsby 1 NM or less. .WED...NE winds 5 to 10 kt. Waves 2 to 3 ft. A chance of showers. .WED NIGHT...NE winds 5 to 10 kt. Waves around 2 ft. A chance of showers. Vsby 1 NM or less. .THU...N winds around 5 kt, becoming SE around 5 kt in the afternoon. Waves around 2 ft. .THU NIGHT...S winds around 5 kt, becoming E after midnight. Waves 2 to 3 ft. .FRI...NE winds 5 to 10 kt with gusts up to 20 kt. Waves 2 to 3 ft. A chance of showers. .FRI NIGHT...E winds 5 to 10 kt with gusts up to 20 kt. Waves 2 to 3 ft. Showers. .SAT...SE winds 5 to 10 kt with gusts up to 20 kt. Waves 2 to 3 ft. Showers. .SAT NIGHT...SW winds 5 to 10 kt with gusts up to 20 kt. Waves 2 to 3 ft. Showers. Winds and waves higher in and near tstms. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ For the latest updates, please visit our webpage at www.weather.gov/boston You can follow us on Facebook at www.facebook.com/NWSBoston You can follow us on Twitter at @NWSBoston

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