Coastal Waters Forecast
Issued by NWS Boston, MA

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520 FZUS51 KBOX 242317 CWFBOX Coastal Waters Forecast National Weather Service Boston/Norton MA 716 PM EDT Mon Sep 24 2018 Coastal waters from the Merrimack River MA to Watch Hill RI out to 25 NM ANZ200-251200- 716 PM EDT Mon Sep 24 2018 .Synopsis for Massachusetts and Rhode Island coastal waters... A warm front will lift north across the waters Tue night, resutling in very heavy rain, limited visibility, and strong winds. A cold front will follow shortly after, passing through the region Wed night. High pres builds over New Eng Thu and 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. $$ ANZ250-251200- Coastal waters east of Ipswich Bay and the Stellwagen Bank National Marine Sanctuary- 716 PM EDT Mon Sep 24 2018 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH TUESDAY MORNING... ...GALE WATCH IN EFFECT FROM TUESDAY AFTERNOON THROUGH TUESDAY EVENING... .TONIGHT...E winds 10 to 15 kt with gusts up to 20 kt. Seas 4 to 6 ft. .TUE...SE winds 15 to 20 kt, increasing to 20 to 25 kt in the afternoon. Gusts up to 30 kt. Seas 5 to 8 ft. Patchy fog. Rain. Vsby 1 NM or less. .TUE NIGHT...SE winds 25 to 30 kt with gusts up to 35 kt, becoming S 15 to 20 kt with gusts up to 25 kt after midnight. Seas 6 to 9 ft. Patchy fog. Rain. Vsby 1 NM or less. .WED...S winds 15 to 20 kt with gusts up to 30 kt. Seas 4 to 7 ft. Patchy fog. A chance of showers. Vsby 1 NM or less. .WED NIGHT...S winds 15 to 20 kt, becoming W 10 to 15 kt after midnight. Gusts up to 30 kt. Seas 4 to 7 ft. Showers likely with a chance of tstms. .THU...N winds 10 to 15 kt with gusts up to 25 kt. Seas 4 to 6 ft. .THU NIGHT...NE winds 5 to 10 kt. Seas 3 to 5 ft. .FRI...N winds 5 to 10 kt. Seas 2 to 3 ft. .FRI NIGHT...W winds 5 to 10 kt with gusts up to 20 kt. Seas 3 to 5 ft. .SAT...NW winds 5 to 10 kt with gusts up to 20 kt. Seas 3 to 5 ft. .SAT NIGHT...SW winds 5 to 10 kt. Seas 3 to 5 ft. Winds and seas higher in and near tstms. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ251-251200- Massachusetts Bay and Ipswich Bay- 716 PM EDT Mon Sep 24 2018 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH TUESDAY MORNING... ...GALE WATCH IN EFFECT FROM TUESDAY AFTERNOON THROUGH TUESDAY EVENING... .TONIGHT...E winds 10 to 15 kt with gusts up to 20 kt. Seas 4 to 6 ft. .TUE...SE winds 15 to 20 kt, increasing to 20 to 25 kt in the afternoon. Gusts up to 30 kt. Seas 4 to 7 ft. Patchy fog. Rain. Vsby 1 NM or less. .TUE NIGHT...S winds 20 to 25 kt with gusts up to 35 kt, diminishing to 10 to 15 kt with gusts up to 20 kt after midnight. Seas 5 to 8 ft. Patchy fog. Rain. Vsby 1 NM or less. .WED...S winds 10 to 15 kt with gusts up to 25 kt. Seas 3 to 5 ft. Patchy fog. A chance of showers. Vsby 1 NM or less. .WED NIGHT...SW winds 10 to 15 kt, becoming W after midnight. Gusts up to 25 kt. Seas 2 to 4 ft. Showers likely with a chance of tstms. .THU...N winds 10 to 15 kt with gusts up to 20 kt, becoming NE 5 to 10 kt in the afternoon. Seas 2 to 4 ft. .THU NIGHT...NE winds 5 to 10 kt. Seas around 2 ft. .FRI...NW winds around 5 kt. Seas around 2 ft. .FRI NIGHT...W winds 5 to 10 kt. Seas 2 to 3 ft. .SAT...NW winds 5 to 10 kt. Seas 2 to 3 ft. .SAT NIGHT...SW winds 5 to 10 kt. Seas 2 to 4 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. $$ ANZ231-251200- Cape Cod Bay- 716 PM EDT Mon Sep 24 2018 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH TUESDAY EVENING... .TONIGHT...E winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. .TUE...SE winds 15 to 20 kt with gusts up to 30 kt. Seas around 3 ft. Patchy fog. Rain. Vsby 1 NM or less. .TUE NIGHT...SE winds 15 to 20 kt with gusts up to 30 kt, becoming S 10 to 15 kt after midnight. Seas 2 to 4 ft. Patchy fog. Rain. Vsby 1 to 3 NM. .WED...S winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 4 ft. Patchy fog. Showers likely. Vsby 1 NM or less. .WED NIGHT...SW winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 4 ft. Showers likely with a chance of tstms. .THU...N winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 4 ft. A chance of showers. .THU NIGHT...NE winds 5 to 10 kt. Seas 2 to 3 ft. .FRI...N winds around 5 kt. Seas around 2 ft. .FRI NIGHT...W winds 5 to 10 kt. Seas 2 to 3 ft. .SAT...NW winds 5 to 10 kt. Seas 2 to 3 ft. .SAT NIGHT...SW winds 5 to 10 kt. Seas 2 to 3 ft. Winds and seas higher in and near tstms. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ254-251200- Coastal waters from Provincetown MA to Chatham MA to Nantucket MA out 20 nm- 716 PM EDT Mon Sep 24 2018 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH WEDNESDAY AFTERNOON... .TONIGHT...E winds 15 to 20 kt with gusts up to 25 kt. Seas 5 to 7 ft. .TUE...SE winds 15 to 20 kt, increasing to 20 to 25 kt in the afternoon. Gusts up to 30 kt. Seas 5 to 7 ft. Patchy fog. Rain. Vsby 1 NM or less. .TUE NIGHT...SE winds 20 to 25 kt, becoming S 10 to 15 kt after midnight. Gusts up to 30 kt. Seas 5 to 8 ft. Patchy fog. Rain. Vsby 1 NM or less. .WED...S winds 10 to 15 kt, increasing to 15 to 20 kt in the afternoon. Gusts up to 30 kt. Seas 6 to 9 ft. Patchy fog. A chance of showers. Vsby 1 NM or less. .WED NIGHT...S winds 15 to 20 kt with gusts up to 30 kt, becoming SW 10 to 15 kt with gusts up to 20 kt after midnight. Seas 5 to 8 ft. Showers likely with a chance of tstms. .THU...N winds 10 to 15 kt with gusts up to 25 kt. Seas 4 to 7 ft. A chance of showers. .THU NIGHT...NE winds 10 to 15 kt, diminishing to 5 to 10 kt after midnight. Seas 4 to 6 ft. .FRI...N winds 5 to 10 kt. Seas 2 to 4 ft. .FRI NIGHT...W winds 5 to 10 kt. Seas 3 to 5 ft. .SAT...NW winds 5 to 10 kt. Seas 3 to 5 ft. .SAT NIGHT...SW winds 5 to 10 kt. Seas 3 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. $$ ANZ255-251200- Coastal Waters extending out to 25 nm South of Marthas Vineyard and Nantucket- 716 PM EDT Mon Sep 24 2018 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH WEDNESDAY AFTERNOON... .TONIGHT...E winds 15 to 20 kt with gusts up to 30 kt. Seas 4 to 7 ft. .TUE...E winds 20 to 25 kt, becoming SE 15 to 20 kt in the afternoon. Gusts up to 30 kt. Seas 4 to 7 ft. Patchy fog. Rain. Vsby 1 to 3 NM. .TUE NIGHT...SE winds 15 to 20 kt with gusts up to 30 kt, becoming S 10 to 15 kt with gusts up to 20 kt after midnight. Seas 4 to 7 ft. Patchy fog. Rain. Vsby 1 to 3 NM. .WED...S winds 15 to 20 kt with gusts up to 30 kt. Seas 6 to 9 ft. Patchy fog. Showers likely. Vsby 1 to 3 NM. .WED NIGHT...SW winds 15 to 20 kt, becoming W 10 to 15 kt after midnight. Gusts up to 25 kt. Seas 6 to 9 ft. Showers likely with a chance of tstms. .THU...NE winds 10 to 15 kt with gusts up to 25 kt. Seas 4 to 7 ft. A chance of showers. .THU NIGHT...NE winds 10 to 15 kt. Seas 3 to 5 ft. .FRI...N winds 5 to 10 kt. Seas 2 to 4 ft. .FRI NIGHT...W winds 5 to 10 kt. Seas 2 to 4 ft. .SAT...NW winds 5 to 10 kt. Seas 2 to 4 ft. .SAT NIGHT...SW winds 5 to 10 kt. Seas 3 to 5 ft. Winds and seas higher in and near tstms. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ256-251200- Coastal Waters from Montauk NY to Marthas Vineyard extending out to 20 nm South of Block Island- 716 PM EDT Mon Sep 24 2018 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH WEDNESDAY AFTERNOON... .TONIGHT...E winds 15 to 20 kt with gusts up to 30 kt. Seas 5 to 8 ft. .TUE...E winds 20 to 25 kt, becoming SE 15 to 20 kt in the afternoon. Gusts up to 30 kt. Seas 6 to 8 ft. Patchy fog. Rain. Vsby 1 NM or less. .TUE NIGHT...S winds 15 to 20 kt, diminishing to 10 to 15 kt after midnight. Gusts up to 25 kt. Seas 5 to 7 ft. Patchy fog. Rain. Vsby 1 to 3 NM. .WED...S winds 10 to 15 kt, increasing to 15 to 20 kt in the afternoon. Gusts up to 25 kt. Seas 5 to 8 ft. Patchy fog. Showers likely. Vsby 1 to 3 NM. .WED NIGHT...SW winds 15 to 20 kt, becoming W 10 to 15 kt after midnight. Gusts up to 25 kt. Seas 6 to 8 ft. Showers likely with a chance of tstms. .THU...NE winds 10 to 15 kt with gusts up to 25 kt. Seas 5 to 7 ft. A chance of showers. .THU NIGHT...NE winds 10 to 15 kt. Seas 4 to 5 ft. .FRI...NE winds 5 to 10 kt. Seas 2 to 4 ft. .FRI NIGHT...W winds 5 to 10 kt. Seas 2 to 4 ft. .SAT...NW winds 5 to 10 kt. Seas 2 to 4 ft. .SAT NIGHT...W winds 5 to 10 kt. Seas 2 to 4 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. $$ ANZ232-251200- Nantucket Sound- 716 PM EDT Mon Sep 24 2018 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH TUESDAY EVENING... .TONIGHT...E winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 4 ft. .TUE...SE winds 15 to 20 kt with gusts up to 30 kt. Seas 3 to 5 ft. Patchy fog. Rain. Vsby 1 NM or less. .TUE NIGHT...SE winds 15 to 20 kt with gusts up to 30 kt, becoming S 10 to 15 kt with gusts up to 20 kt after midnight. Seas 2 to 4 ft. Patchy fog. Rain. Vsby 1 NM or less. .WED...S winds 10 to 15 kt, increasing to 15 to 20 kt in the afternoon. Gusts up to 30 kt. Seas 2 to 4 ft. Patchy fog. Showers likely. Vsby 1 NM or less. .WED NIGHT...SW winds 15 to 20 kt, becoming W 10 to 15 kt after midnight. Gusts up to 25 kt. Seas 2 to 4 ft. Showers likely with a chance of tstms. .THU...N winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 4 ft. A chance of showers. .THU NIGHT...NE winds 10 to 15 kt, diminishing to 5 to 10 kt after midnight. Seas 2 to 3 ft. .FRI...N winds 5 to 10 kt. Seas around 2 ft. .FRI NIGHT...W winds 5 to 10 kt. Seas 2 to 3 ft. .SAT...NW winds 5 to 10 kt. Seas 2 to 3 ft. .SAT NIGHT...SW winds 5 to 10 kt. Seas 2 to 3 ft. Winds and seas higher in and near tstms. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ233-251200- Vineyard Sound- 716 PM EDT Mon Sep 24 2018 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH TUESDAY EVENING... .TONIGHT...E winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 4 ft. .TUE...SE winds 15 to 20 kt with gusts up to 30 kt. Seas 3 to 5 ft. Patchy fog. Rain. Vsby 1 NM or less. .TUE NIGHT...S winds 15 to 20 kt with gusts up to 30 kt, diminishing to 10 to 15 kt with gusts up to 20 kt after midnight. Seas 2 to 3 ft. Patchy fog. Rain. Vsby 1 to 3 NM. .WED...S winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 3 ft. Patchy fog. Showers likely. Vsby 1 NM or less. .WED NIGHT...SW winds 10 to 15 kt with gusts up to 25 kt, becoming W after midnight. Seas 2 to 4 ft. Showers likely with a chance of tstms. .THU...NE winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. A chance of showers. .THU NIGHT...NE winds 5 to 10 kt. Seas 2 to 3 ft. .FRI...NW winds 5 to 10 kt. Seas around 2 ft. .FRI NIGHT...W winds 5 to 10 kt. Seas around 2 ft. .SAT...NW winds 5 to 10 kt. Seas around 2 ft. .SAT NIGHT...W winds 5 to 10 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. $$ ANZ234-251200- Buzzards Bay- 716 PM EDT Mon Sep 24 2018 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH TUESDAY EVENING... .TONIGHT...E winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 4 ft. .TUE...E winds 15 to 20 kt, becoming SE 10 to 15 kt in the afternoon. Gusts up to 30 kt. Seas 3 to 5 ft. Patchy fog. Rain. Vsby 1 NM or less. .TUE NIGHT...S winds 15 to 20 kt with gusts up to 30 kt, diminishing to 10 to 15 kt after midnight. Seas 2 to 4 ft. Patchy fog. Rain. Vsby 1 to 3 NM. .WED...S winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 4 ft. Patchy fog. Vsby 1 NM or less. .WED NIGHT...SW winds 10 to 15 kt with gusts up to 25 kt, becoming W 5 to 10 kt after midnight. Seas 2 to 4 ft. Showers likely with a chance of tstms. .THU...NE winds 10 to 15 kt. Gusts up to 20 kt in the morning. Seas 2 to 3 ft. A chance of showers. .THU NIGHT...NE winds 5 to 10 kt. Seas around 2 ft. .FRI...NW winds around 5 kt. Seas around 2 ft. .FRI NIGHT...W winds 5 to 10 kt. Seas 1 foot or less. .SAT...NW winds 5 to 10 kt. Seas 1 foot or less. .SAT NIGHT...W winds 5 to 10 kt. Seas around 2 ft. Winds and seas higher in and near tstms. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ235-251200- Rhode Island Sound- 716 PM EDT Mon Sep 24 2018 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH WEDNESDAY AFTERNOON... .TONIGHT...E winds 15 to 20 kt with gusts up to 30 kt. Seas 4 to 6 ft. .TUE...SE winds 15 to 20 kt with gusts up to 30 kt. Seas 4 to 7 ft. Patchy fog. Rain. Vsby 1 to 3 NM. .TUE NIGHT...S winds 15 to 20 kt with gusts up to 30 kt, diminishing to 10 to 15 kt with gusts up to 20 kt after midnight. Seas 4 to 6 ft. Patchy fog. Rain. Vsby 1 to 3 NM. .WED...S winds 10 to 15 kt, increasing to 15 to 20 kt in the afternoon. Gusts up to 30 kt. Seas 4 to 6 ft. Patchy fog. Showers likely. Vsby 1 to 3 NM. .WED NIGHT...SW winds 15 to 20 kt, becoming W 10 to 15 kt after midnight. Gusts up to 25 kt. Seas 4 to 6 ft. Showers likely with a chance of tstms. .THU...NE winds 10 to 15 kt with gusts up to 25 kt. Seas 3 to 5 ft. A chance of showers. .THU NIGHT...NE winds 10 to 15 kt, diminishing to 5 to 10 kt after midnight. Seas 2 to 4 ft. .FRI...NW winds 5 to 10 kt. Seas 2 to 3 ft. .FRI NIGHT...W winds 5 to 10 kt. Seas around 2 ft. .SAT...NW winds 5 to 10 kt. Seas around 2 ft. .SAT NIGHT...W winds 5 to 10 kt. Seas 2 to 3 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. $$ ANZ237-251200- Block Island Sound- 716 PM EDT Mon Sep 24 2018 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH WEDNESDAY AFTERNOON... .TONIGHT...E winds 15 to 20 kt with gusts up to 30 kt. Seas 4 to 7 ft. .TUE...SE winds 15 to 20 kt with gusts up to 30 kt. Seas 4 to 7 ft. Patchy fog. Rain. Vsby 1 NM or less. .TUE NIGHT...S winds 15 to 20 kt with gusts up to 25 kt, diminishing to 5 to 10 kt after midnight. Seas 4 to 6 ft. Patchy fog. Rain. Vsby 1 to 3 NM. .WED...S winds 10 to 15 kt with gusts up to 25 kt. Seas 4 to 6 ft. Patchy fog. Showers likely. Vsby 1 to 3 NM. .WED NIGHT...SW winds 10 to 15 kt, becoming W after midnight. Gusts up to 25 kt. Seas 4 to 6 ft. Showers likely with a chance of tstms. .THU...NE winds 10 to 15 kt. Gusts up to 25 kt in the morning. Seas 3 to 5 ft. .THU NIGHT...NE winds 5 to 10 kt. Seas 2 to 4 ft. .FRI...SE winds 5 to 10 kt. Seas 2 to 3 ft. .FRI NIGHT...W winds 5 to 10 kt. Seas around 2 ft. .SAT...NW winds 5 to 10 kt. Seas around 2 ft. .SAT NIGHT...SW winds 5 to 10 kt. Seas 2 to 3 ft. Winds and seas higher in and near tstms. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ230-251200- Boston Harbor- 716 PM EDT Mon Sep 24 2018 ...SMALL CRAFT ADVISORY IN EFFECT FROM 6 AM EDT TUESDAY THROUGH TUESDAY AFTERNOON... .TONIGHT...E winds 10 to 15 kt with gusts up to 20 kt. Waves around 2 ft, except 3 to 5 ft at the outer harbor entrance. .TUE...SE winds 15 to 20 kt with gusts up to 30 kt. Waves around 2 ft, except 3 to 5 ft at the outer harbor entrance. Patchy fog. Rain. Vsby 1 to 3 NM. .TUE NIGHT...S winds 15 to 20 kt with gusts up to 30 kt, diminishing to 5 to 10 kt after midnight. Waves around 2 ft, except 3 to 5 ft at the outer harbor entrance. Patchy fog. Rain. Vsby 1 to 3 NM. .WED...S winds 5 to 10 kt with gusts up to 25 kt. Waves around 2 ft. Patchy fog. A chance of showers. Vsby 1 NM or less. .WED NIGHT...SW winds around 10 kt, becoming W after midnight. Gusts up to 20 kt. Waves around 2 ft. Showers likely with a chance of tstms. .THU...NE winds 5 to 10 kt. Gusts up to 20 kt in the morning. Waves around 2 ft. .THU NIGHT...NE winds around 5 kt. Waves 1 foot or less. .FRI...NW winds around 5 kt. Waves 1 foot or less. .FRI NIGHT...W winds around 5 kt. Waves 1 foot or less. .SAT...NW winds around 5 kt. Waves 1 foot or less. .SAT NIGHT...SW winds around 5 kt. Waves 1 foot or less. 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. $$ ANZ236-251200- Narragansett Bay- 716 PM EDT Mon Sep 24 2018 ...SMALL CRAFT ADVISORY IN EFFECT FROM 6 AM EDT TUESDAY THROUGH TUESDAY AFTERNOON... .TONIGHT...E winds 10 to 15 kt with gusts up to 25 kt. Waves 2 to 4 ft. .TUE...SE winds 15 to 20 kt with gusts up to 30 kt. Waves 2 to 4 ft. Patchy fog. Rain. Vsby 1 NM or less. .TUE NIGHT...S winds 10 to 15 kt. Gusts up to 25 kt in the evening. Waves 2 to 4 ft. Patchy fog. Rain. Vsby 1 to 3 NM. .WED...S winds 5 to 10 kt, increasing to 10 to 15 kt in the afternoon. Gusts up to 25 kt. Waves 2 to 4 ft. Patchy fog. Showers likely. Vsby 1 to 3 NM. .WED NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt, becoming W 5 to 10 kt after midnight. Waves 2 to 4 ft. Showers likely with a chance of tstms. .THU...NE winds 5 to 10 kt. Gusts up to 20 kt in the morning. Waves 2 to 3 ft. .THU NIGHT...NE winds 5 to 10 kt. Waves around 2 ft. .FRI...NW winds around 5 kt. Waves around 2 ft. .FRI NIGHT...W winds 5 to 10 kt. Waves around 2 ft. .SAT...NW winds 5 to 10 kt. Waves around 2 ft. .SAT NIGHT...W winds around 5 kt. Waves around 2 ft. Winds and waves higher in and near tstms. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ 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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