Coastal Waters Forecast
Issued by NWS Boston, MA

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000 FZUS51 KBOX 160142 CWFBOX Coastal Waters Forecast National Weather Service Boston/Norton MA 942 PM EDT Tue May 15 2018 Coastal waters from the Merrimack River MA to Watch Hill RI out to 25 NM ANZ200-161415- 942 PM EDT Tue May 15 2018 .Synopsis for Massachusetts and Rhode Island coastal waters... A cold front will push east of the waters by midnight. Another round of showers 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. $$ ANZ250-161415- Coastal waters east of Ipswich Bay and the Stellwagen Bank National Marine Sanctuary- 942 PM EDT Tue May 15 2018 .OVERNIGHT...N winds 5 to 10 kt, increasing to 10 to 15 kt. Gusts up to 20 kt. Seas 2 to 3 ft. Patchy fog. A chance of showers late this evening. Vsby 1 NM or less. .WED...NE winds 10 to 15 kt with gusts up to 25 kt, becoming E 5 to 10 kt in the afternoon. Seas 2 to 4 ft. .WED NIGHT...E winds 5 to 10 kt. Seas 2 to 4 ft. .THU...W winds around 5 kt, becoming S in the afternoon. Seas 2 to 3 ft. .THU NIGHT...S winds 5 to 10 kt, becoming NE 10 to 15 kt after midnight. Seas 2 to 4 ft. .FRI...NE winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 5 ft. .FRI NIGHT...E winds 10 to 15 kt, diminishing to 5 to 10 kt after midnight. Seas 2 to 4 ft. Showers likely. .SAT...E winds around 10 kt. Seas 3 to 5 ft. Showers. .SAT NIGHT...S winds 5 to 10 kt. Seas 3 to 5 ft. Showers. .SUN...SW winds 5 to 10 kt. Seas 2 to 4 ft. A chance of showers. .SUN NIGHT...SW winds 10 to 15 kt. Seas 2 to 4 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ251-161415- Massachusetts Bay and Ipswich Bay- 942 PM EDT Tue May 15 2018 .OVERNIGHT...N winds 5 to 10 kt. Gusts up to 20 kt. Seas around 2 ft. Patchy fog. A chance of showers late this evening. 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 S in the afternoon. Seas around 2 ft. .THU NIGHT...SE winds 5 to 10 kt, becoming NE after midnight. Seas 2 to 3 ft. .FRI...NE winds 10 to 15 kt, diminishing to 5 to 10 kt in the afternoon. 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 2 to 3 ft. Showers. .SAT NIGHT...S winds 5 to 10 kt. Seas 2 to 3 ft. Showers. .SUN...SW winds 5 to 10 kt. Seas 2 to 3 ft. A chance of showers. .SUN NIGHT...SW winds 5 to 10 kt. Seas around 2 ft. A chance of showers and tstms. 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. $$ ANZ231-161415- Cape Cod Bay- 942 PM EDT Tue May 15 2018 .OVERNIGHT...N winds 5 to 10 kt. Gusts up to 20 kt late this evening. Seas around 2 ft. Patchy fog. Showers likely with a chance of tstms late this evening. Vsby 1 to 3 NM, decreasing to 1 NM or less. .WED...NE winds 5 to 10 kt. Gusts up to 20 kt in the morning. Seas 2 to 3 ft. Patchy fog. Vsby 1 NM or less. .WED NIGHT...E winds 5 to 10 kt. Seas 2 to 3 ft. A chance of showers. Vsby 1 NM or less. .THU...N winds around 5 kt, becoming S in the afternoon. Seas around 2 ft. .THU NIGHT...S winds around 5 kt, becoming NE after midnight. Seas around 2 ft. .FRI...NE winds 10 to 15 kt. Gusts up to 20 kt in the morning. Seas 2 to 3 ft. .FRI NIGHT...E winds around 10 kt. Seas 2 to 3 ft. Showers likely. .SAT...E winds 5 to 10 kt. Seas 2 to 3 ft. Showers. .SAT NIGHT...S winds 5 to 10 kt. Seas 2 to 3 ft. Showers. .SUN...SW winds 10 to 15 kt. Seas around 2 ft. A chance of showers. .SUN NIGHT...SW winds 10 to 15 kt. Seas around 2 ft. Winds and seas higher in and near tstms. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ254-161415- Coastal waters from Provincetown MA to Chatham MA to Nantucket MA out 20 nm- 942 PM EDT Tue May 15 2018 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH WEDNESDAY MORNING... .OVERNIGHT...W winds 10 to 15 kt with gusts up to 30 kt, becoming N 5 to 10 kt with gusts up to 20 kt. Seas 2 to 4 ft. Patchy fog. Showers late this evening. 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, becoming SW in the afternoon. Seas 2 to 4 ft. A chance of showers. .THU NIGHT...S winds around 5 kt, becoming E after midnight. Seas 2 to 4 ft. .FRI...NE winds 10 to 15 kt. Gusts up to 20 kt in the afternoon. Seas 3 to 5 ft. .FRI NIGHT...E winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 5 ft. Showers likely. .SAT...SE winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 5 ft. Showers. .SAT NIGHT...S winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 5 ft. Showers. .SUN...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 5 ft. A chance of showers. .SUN NIGHT...SW 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. $$ ANZ255-161415- Coastal Waters extending out to 25 nm South of Marthas Vineyard and Nantucket- 942 PM EDT Tue May 15 2018 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH WEDNESDAY EVENING... .OVERNIGHT...W winds 10 to 15 kt with gusts up to 30 kt, becoming N 5 to 10 kt with gusts up to 20 kt. Seas 4 to 7 ft. Patchy fog. Showers likely late this evening. Vsby 1 NM or less. .WED...NE winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 5 ft. Patchy fog. Showers likely. Vsby 1 NM or less. .WED NIGHT...E winds 5 to 10 kt. Seas 3 to 5 ft. Patchy fog. Showers likely. Vsby 1 to 3 NM. .THU...N winds around 5 kt, becoming W in the afternoon. Seas 3 to 5 ft. A chance of showers. .THU NIGHT...S winds around 5 kt, becoming E after midnight. Seas 3 to 5 ft. .FRI...NE winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 5 ft. A chance of showers. .FRI NIGHT...E winds 10 to 15 kt with gusts up to 20 kt. Seas 4 to 6 ft. Showers likely. .SAT...SE winds 10 to 15 kt with gusts up to 20 kt. Seas 4 to 6 ft. Showers likely. .SAT NIGHT...S winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 5 ft. Showers. .SUN...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 5 ft. A chance of showers and tstms. .SUN NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 5 ft. A chance of showers and tstms. Winds and seas higher in and near tstms. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ256-161415- Coastal Waters from Montauk NY to Marthas Vineyard extending out to 20 nm South of Block Island- 942 PM EDT Tue May 15 2018 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH WEDNESDAY EVENING... .OVERNIGHT...W winds 10 to 15 kt with gusts up to 25 kt, becoming N 5 to 10 kt. Seas 4 to 6 ft. Patchy fog. Showers likely with a chance of tstms late this evening. 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 NM or less. .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 SW in the afternoon. Seas 3 to 4 ft. A chance of showers. .THU NIGHT...S winds around 5 kt, becoming E after midnight. Seas 3 to 5 ft. .FRI...NE winds 10 to 15 kt with gusts up to 25 kt. Seas 4 to 6 ft. A chance of showers. .FRI NIGHT...E winds around 15 kt with gusts up to 25 kt. Seas 4 to 7 ft. Showers. .SAT...E winds 10 to 15 kt with gusts up to 20 kt. Seas 4 to 7 ft. Showers. .SAT NIGHT...S winds 10 to 15 kt. Seas 3 to 5 ft. Showers. .SUN...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 5 ft. A chance of showers and tstms. .SUN NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 4 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. $$ ANZ232-161415- Nantucket Sound- 942 PM EDT Tue May 15 2018 .OVERNIGHT...W winds 5 to 10 kt with gusts up to 25 kt, becoming N. Seas 2 to 3 ft. Patchy fog. Showers likely late this evening. Vsby 1 NM or less. .WED...NE winds 10 to 15 kt, becoming E 5 to 10 kt in the afternoon. Gusts up to 20 kt. Seas 2 to 3 ft. Patchy fog. A chance of showers. Vsby 1 NM or less. .WED NIGHT...NE winds 5 to 10 kt. Seas 2 to 3 ft. A chance of showers. Vsby 1 to 3 NM. .THU...N winds around 5 kt, becoming SW in the afternoon. Seas 2 to 3 ft. A chance of showers. .THU NIGHT...S winds around 5 kt, becoming E after midnight. Seas 2 to 3 ft. .FRI...NE winds 10 to 15 kt. Gusts up to 20 kt in the afternoon. Seas 2 to 3 ft. A chance of showers. .FRI NIGHT...E winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. Showers. .SAT...SE winds 10 to 15 kt. Seas 2 to 4 ft. Showers. .SAT NIGHT...S winds 10 to 15 kt. Seas 2 to 3 ft. Showers. .SUN...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. A chance of showers. .SUN NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ233-161415- Vineyard Sound- 942 PM EDT Tue May 15 2018 .OVERNIGHT...W winds 5 to 10 kt with gusts up to 20 kt, becoming N. Seas 2 to 3 ft. Patchy fog. Showers likely late this evening. Vsby 1 to 3 NM. .WED...NE winds 5 to 10 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 around 2 ft. A chance of showers. Vsby 1 to 3 NM. .THU...N winds around 5 kt, becoming SW in the afternoon. Seas around 2 ft. A chance of showers. .THU NIGHT...S winds around 5 kt, becoming E after midnight. Seas 2 to 3 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 2 to 3 ft. Showers. .SAT...E winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Showers. .SAT NIGHT...S winds around 10 kt. Seas around 2 ft. Showers. .SUN...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. A chance of showers. .SUN NIGHT...SW winds 10 to 15 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. $$ ANZ234-161415- Buzzards Bay- 942 PM EDT Tue May 15 2018 .OVERNIGHT...NW winds 5 to 10 kt, becoming N. Seas 2 to 3 ft. Patchy fog. Showers likely late this evening. Vsby 1 to 3 NM. .WED...NE winds 5 to 10 kt. Seas 2 to 3 ft. Patchy fog. A chance of showers. Vsby 1 NM or less. .WED NIGHT...E winds 5 to 10 kt, becoming NE after midnight. Seas around 2 ft. A chance of showers. Vsby 1 NM or less. .THU...N winds around 5 kt, becoming SW in the afternoon. Seas around 2 ft. A chance of showers. .THU NIGHT...S winds around 5 kt, becoming NE after midnight. Seas around 2 ft. .FRI...NE winds 5 to 10 kt, increasing to 10 to 15 kt in the afternoon. Gusts up to 20 kt. Seas around 2 ft. A chance of showers. .FRI NIGHT...E winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Showers. .SAT...E winds 5 to 10 kt with gusts up to 20 kt. Seas 2 to 3 ft. Showers. .SAT NIGHT...S winds 5 to 10 kt. Seas around 2 ft. Showers. .SUN...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. A chance of showers. .SUN NIGHT...SW winds 10 to 15 kt. Seas 2 to 3 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ235-161415- Rhode Island Sound- 942 PM EDT Tue May 15 2018 .OVERNIGHT...W winds 5 to 10 kt with gusts up to 20 kt, becoming N. Seas 2 to 4 ft. Patchy fog. A chance of showers late this evening. Vsby 1 NM or less, increasing to 1 to 3 NM. .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 NM or less. .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 SW in the afternoon. Seas 2 to 4 ft. A chance of showers. .THU NIGHT...S winds around 5 kt, becoming E after midnight. Seas 2 to 4 ft. .FRI...NE winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 4 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...E winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 5 ft. Showers. .SAT NIGHT...S winds 5 to 10 kt. Seas 2 to 4 ft. Showers. .SUN...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. A chance of showers. .SUN NIGHT...SW winds 10 to 15 kt with gusts up to 20 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. $$ ANZ237-161415- Block Island Sound- 942 PM EDT Tue May 15 2018 .OVERNIGHT...W winds 5 to 10 kt, becoming N. Seas 2 to 4 ft. Patchy fog. A slight chance of showers late this evening. Vsby 1 NM or less. .WED...NE winds 5 to 10 kt with gusts up to 20 kt. Seas 2 to 4 ft. Patchy fog. A chance of showers. Vsby 1 NM or less. .WED NIGHT...NE winds 5 to 10 kt. Seas 2 to 4 ft. Patchy fog. A chance of showers. Vsby 1 to 3 NM. .THU...N winds around 5 kt, becoming SW in the afternoon. Seas 2 to 4 ft. A chance of showers. .THU NIGHT...S winds around 5 kt, becoming E after midnight. Seas 2 to 4 ft. .FRI...NE winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 4 ft. A chance of showers. .FRI NIGHT...E winds 10 to 15 kt with gusts up to 25 kt. Seas 3 to 5 ft. Showers. .SAT...E winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 5 ft. Showers. .SAT NIGHT...S winds 5 to 10 kt. Seas 2 to 4 ft. Showers. .SUN...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. A chance of showers. .SUN NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ230-161415- Boston Harbor- 942 PM EDT Tue May 15 2018 .OVERNIGHT...N winds 5 to 10 kt. Waves 1 foot or less. Patchy fog. A chance of showers late this evening. 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. Waves around 2 ft. .WED NIGHT...NE winds around 5 kt. Waves around 2 ft. .THU...NW winds around 5 kt, becoming SE 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 around 2 ft. .FRI NIGHT...E winds 5 to 10 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. .SUN...SW winds 5 to 10 kt. Waves 1 foot or less. A chance of showers and tstms. .SUN NIGHT...SW winds around 5 kt. Waves 1 foot or less. A chance of showers and tstms. 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. $$ ANZ236-161415- Narragansett Bay- 942 PM EDT Tue May 15 2018 .OVERNIGHT...N winds 5 to 10 kt. Waves 2 to 3 ft. Patchy fog. A chance of showers late this evening. Vsby 1 to 3 NM. .WED...NE winds 5 to 10 kt. Waves 2 to 3 ft. Patchy fog. A chance of showers. Vsby 1 to 3 NM. .WED NIGHT...NE winds 5 to 10 kt. Waves around 2 ft. A chance of showers. Vsby 1 NM or less. .THU...N winds around 5 kt, becoming S around 5 kt in the afternoon. Waves around 2 ft. .THU NIGHT...S winds around 5 kt, becoming NE after midnight. Waves around 2 ft. .FRI...NE winds 5 to 10 kt with gusts up to 20 kt. Waves around 2 ft. A chance of showers. .FRI NIGHT...NE winds 5 to 10 kt with gusts up to 20 kt. Waves 2 to 3 ft. Showers. .SAT...E winds 5 to 10 kt. Waves 2 to 3 ft. Showers. .SAT NIGHT...S winds 5 to 10 kt. Waves around 2 ft. Showers. .SUN...SW winds 5 to 10 kt. Waves 2 to 3 ft. A chance of showers. .SUN NIGHT...SW winds 5 to 10 kt. Waves 2 to 3 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ 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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