Coastal Waters Forecast
Issued by NWS Boston, MA

Current Version | Previous Version | Text Only | Print | Product List | Glossary Off
Versions: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50
000 FZUS51 KBOX 160516 CWFBOX Coastal Waters Forecast National Weather Service Boston/Norton MA 116 AM EDT Wed May 16 2018 Coastal waters from the Merrimack River MA to Watch Hill RI out to 25 NM ANZ200-161800- 116 AM EDT Wed May 16 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. $$ ANZ250-161800- Coastal waters east of Ipswich Bay and the Stellwagen Bank National Marine Sanctuary- 116 AM EDT Wed May 16 2018 .REST OF TONIGHT...N winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Patchy fog. Vsby 1 NM or less. .WED...E winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 4 ft. Patchy dense fog. Vsby 1 NM or less. .WED NIGHT...SE winds 5 to 10 kt, becoming E after midnight. Seas 2 to 4 ft. Patchy fog. A chance of showers. Vsby 1 to 3 NM. .THU...NW winds around 5 kt, becoming S in the afternoon. Seas 2 to 3 ft. A chance of showers. .THU NIGHT...S winds 5 to 10 kt, becoming NE 10 to 15 kt after midnight. Seas 2 to 4 ft. .FRI...NE winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 5 ft. .FRI NIGHT...E winds 10 to 15 kt, diminishing to 5 to 10 kt after midnight. Seas 2 to 4 ft. Showers likely. .SAT...E winds around 10 kt. Seas 3 to 5 ft. Showers. .SAT NIGHT...S winds 5 to 10 kt. Seas 3 to 5 ft. Showers. .SUN...SW winds 5 to 10 kt. Seas 2 to 4 ft. A chance of showers. .SUN NIGHT...SW winds 10 to 15 kt. Seas 2 to 4 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ251-161800- Massachusetts Bay and Ipswich Bay- 116 AM EDT Wed May 16 2018 .REST OF TONIGHT...N winds 5 to 10 kt. Seas around 2 ft. Patchy fog. 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. Patchy dense fog. Vsby 1 NM or less. .WED NIGHT...E winds 5 to 10 kt, diminishing to around 5 kt after midnight. Seas 2 to 3 ft. Patchy fog. A chance of showers. Vsby 1 to 3 NM. .THU...NW winds around 5 kt, becoming S in the afternoon. Seas around 2 ft. A chance of showers. .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. $$ ANZ231-161800- Cape Cod Bay- 116 AM EDT Wed May 16 2018 .REST OF TONIGHT...N winds 5 to 10 kt. Seas 1 foot or less. Patchy fog. Vsby 1 NM or less. .WED...NE winds 10 to 15 kt with gusts up to 20 kt, becoming E 5 to 10 kt in the afternoon. Seas 2 to 3 ft. Patchy fog. Vsby 1 NM or less. .WED NIGHT...E winds 5 to 10 kt, diminishing to around 5 kt after midnight. Seas 2 to 3 ft. Patchy fog. Showers likely. Vsby 1 to 3 NM. .THU...N winds around 5 kt, becoming S in the afternoon. Seas around 2 ft. A chance of showers. .THU NIGHT...S winds around 5 kt, becoming NE after midnight. Seas around 2 ft. .FRI...NE winds 10 to 15 kt. Gusts up to 20 kt in the morning. Seas 2 to 3 ft. .FRI NIGHT...E winds around 10 kt. Seas 2 to 3 ft. Showers likely. .SAT...E winds 5 to 10 kt. Seas 2 to 3 ft. Showers. .SAT NIGHT...S winds 5 to 10 kt. Seas 2 to 3 ft. Showers. .SUN...SW winds 10 to 15 kt. Seas around 2 ft. A chance of showers. .SUN NIGHT...SW winds 10 to 15 kt. Seas around 2 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ254-161800- Coastal waters from Provincetown MA to Chatham MA to Nantucket MA out 20 nm- 116 AM EDT Wed May 16 2018 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 11 AM EDT THIS MORNING... .REST OF TONIGHT...N winds 5 to 10 kt. Seas 2 to 4 ft. Patchy fog. Vsby 1 NM or less. .WED...NE winds 10 to 15 kt, becoming E 5 to 10 kt in the afternoon. Gusts up to 25 kt. Seas 3 to 5 ft. Patchy fog. A chance of showers. Vsby 1 NM or less. .WED NIGHT...SE winds 5 to 10 kt. Seas 3 to 5 ft. Patchy fog. Showers likely. Vsby 1 NM or less. .THU...N winds around 5 kt, becoming SW around 5 kt in the afternoon. Seas 2 to 4 ft. Showers likely. Vsby 1 to 3 NM. .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. $$ ANZ255-161800- Coastal Waters extending out to 25 nm South of Marthas Vineyard and Nantucket- 116 AM EDT Wed May 16 2018 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS EVENING... .REST OF TONIGHT...N winds 5 to 10 kt. Seas 3 to 5 ft. Patchy fog. Vsby 1 NM or less. .WED...NE winds 5 to 10 kt with gusts up to 20 kt. Seas 3 to 5 ft. Patchy fog. A chance of showers. Vsby 1 NM or less. .WED NIGHT...E winds 5 to 10 kt. Seas 3 to 5 ft. Patchy fog. Showers likely. Vsby 1 NM or less. .THU...N winds around 5 kt, becoming W around 5 kt in the afternoon. Seas 3 to 5 ft. Showers likely. Vsby 1 to 3 NM. .THU NIGHT...S winds around 5 kt, becoming E after midnight. Seas 3 to 5 ft. .FRI...NE winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 5 ft. A chance of showers. .FRI NIGHT...E winds 10 to 15 kt with gusts up to 20 kt. Seas 4 to 6 ft. Showers likely. .SAT...SE winds 10 to 15 kt with gusts up to 20 kt. Seas 4 to 6 ft. Showers likely. .SAT NIGHT...S winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 5 ft. Showers. .SUN...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 5 ft. A chance of showers and tstms. .SUN NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 5 ft. A chance of showers and tstms. Winds and seas higher in and near tstms. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ256-161800- Coastal Waters from Montauk NY to Marthas Vineyard extending out to 20 nm South of Block Island- 116 AM EDT Wed May 16 2018 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS EVENING... .REST OF TONIGHT...N winds 5 to 10 kt. Seas 4 to 5 ft. Patchy fog. A chance of showers. Vsby 1 to 3 NM. .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. Gusts up to 20 kt in the evening. Seas 3 to 5 ft. Patchy fog. Showers likely. Vsby 1 NM or less. .THU...N winds around 5 kt, becoming SW around 5 kt 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. $$ ANZ232-161800- Nantucket Sound- 116 AM EDT Wed May 16 2018 .REST OF TONIGHT...N winds 5 to 10 kt. Seas 2 to 3 ft. Patchy fog. .WED...NE winds 10 to 15 kt, becoming E 5 to 10 kt in the afternoon. Gusts up to 20 kt. Seas 2 to 3 ft. Patchy fog. A chance of showers. Vsby 1 NM or less. .WED NIGHT...E winds 5 to 10 kt, diminishing to around 5 kt after midnight. Seas 2 to 3 ft. Patchy fog. Showers likely. Vsby 1 to 3 NM. .THU...N winds around 5 kt, becoming SW in the afternoon. Seas 2 to 3 ft. Showers likely. .THU NIGHT...S winds around 5 kt, becoming E after midnight. Seas 2 to 3 ft. .FRI...NE winds 10 to 15 kt. Gusts up to 20 kt in the afternoon. Seas 2 to 3 ft. A chance of showers. .FRI NIGHT...E winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. Showers. .SAT...SE winds 10 to 15 kt. Seas 2 to 4 ft. Showers. .SAT NIGHT...S winds 10 to 15 kt. Seas 2 to 3 ft. Showers. .SUN...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. A chance of showers. .SUN NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ233-161800- Vineyard Sound- 116 AM EDT Wed May 16 2018 .REST OF TONIGHT...NE winds 5 to 10 kt. Seas 2 to 3 ft. .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. Seas around 2 ft. Patchy fog. Showers likely. 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. $$ ANZ234-161800- Buzzards Bay- 116 AM EDT Wed May 16 2018 .REST OF TONIGHT...NE winds 5 to 10 kt. Seas 2 to 3 ft. .WED...NE winds 5 to 10 kt. Seas 2 to 3 ft. Patchy fog. A chance of showers. Vsby 1 to 3 NM. .WED NIGHT...E winds 5 to 10 kt, becoming NE after midnight. Seas around 2 ft. Patchy fog. Showers likely. Vsby 1 to 3 NM. .THU...N winds around 5 kt, becoming SW in the afternoon. Seas around 2 ft. A chance of showers. .THU NIGHT...S winds around 5 kt, becoming NE after midnight. Seas around 2 ft. .FRI...NE winds 5 to 10 kt, increasing to 10 to 15 kt in the afternoon. Gusts up to 20 kt. Seas around 2 ft. A chance of showers. .FRI NIGHT...E winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Showers. .SAT...E winds 5 to 10 kt with gusts up to 20 kt. Seas 2 to 3 ft. Showers. .SAT NIGHT...S winds 5 to 10 kt. Seas around 2 ft. Showers. .SUN...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. A chance of showers. .SUN NIGHT...SW winds 10 to 15 kt. Seas 2 to 3 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ235-161800- Rhode Island Sound- 116 AM EDT Wed May 16 2018 .REST OF TONIGHT...NE winds 5 to 10 kt. Seas 2 to 4 ft. Patchy fog. Vsby 1 to 3 NM. .WED...NE winds 10 to 15 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. Showers likely. 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. $$ ANZ237-161800- Block Island Sound- 116 AM EDT Wed May 16 2018 .REST OF TONIGHT...NE winds 5 to 10 kt. Seas 2 to 4 ft. Patchy fog. Vsby 1 NM or less. .WED...NE winds 5 to 10 kt with gusts up to 20 kt. Seas 2 to 4 ft. Patchy fog. A chance of showers. Vsby 1 NM or less. .WED NIGHT...NE winds 5 to 10 kt. Seas 2 to 4 ft. Patchy fog. Showers likely. Vsby 1 NM or less. .THU...N winds around 5 kt, becoming SW around 5 kt in the afternoon. Seas 2 to 4 ft. Patchy fog. A chance of showers. .THU NIGHT...S winds around 5 kt, becoming E after midnight. Seas 2 to 4 ft. .FRI...NE winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 4 ft. A chance of showers. .FRI NIGHT...E winds 10 to 15 kt with gusts up to 25 kt. Seas 3 to 5 ft. Showers. .SAT...E winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 5 ft. Showers. .SAT NIGHT...S winds 5 to 10 kt. Seas 2 to 4 ft. Showers. .SUN...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. A chance of showers. .SUN NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ230-161800- Boston Harbor- 116 AM EDT Wed May 16 2018 .REST OF TONIGHT...N winds 5 to 10 kt. Waves 1 foot or less. Patchy fog. 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. Patchy fog. Vsby 1 NM or less. .WED NIGHT...NE winds around 5 kt. Waves around 2 ft. Patchy fog. A chance of showers. Vsby 1 to 3 NM. .THU...NW winds around 5 kt, becoming SE around 5 kt in the afternoon. Waves 1 foot or less. A chance of showers. .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. $$ ANZ236-161800- Narragansett Bay- 116 AM EDT Wed May 16 2018 .REST OF TONIGHT...NE winds around 5 kt. Waves 2 to 3 ft. .WED...NE winds 5 to 10 kt. Waves 2 to 3 ft. Patchy fog. A chance of showers. Vsby 1 to 3 NM. .WED NIGHT...NE winds 5 to 10 kt. Waves around 2 ft. Patchy fog. Showers likely. Vsby 1 to 3 NM. .THU...N winds around 5 kt, becoming S around 5 kt in the afternoon. Waves around 2 ft. A chance of showers. .THU NIGHT...S winds around 5 kt, becoming NE after midnight. Waves around 2 ft. .FRI...NE winds 5 to 10 kt with gusts up to 20 kt. Waves around 2 ft. A chance of showers. .FRI NIGHT...NE winds 5 to 10 kt with gusts up to 20 kt. Waves 2 to 3 ft. Showers. .SAT...E winds 5 to 10 kt. Waves 2 to 3 ft. Showers. .SAT NIGHT...S winds 5 to 10 kt. Waves around 2 ft. Showers. .SUN...SW winds 5 to 10 kt. Waves 2 to 3 ft. A chance of showers. .SUN NIGHT...SW winds 5 to 10 kt. Waves 2 to 3 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ 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

USA.gov is the U.S. government's official web portal to all federal, state and local government web resources and services.