Coastal Waters Forecast
Issued by NWS Boston, MA

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000 FZUS51 KBOX 162316 CWFBOX Coastal Waters Forecast National Weather Service Boston/Norton MA 716 PM EDT Mon Jul 16 2018 Coastal waters from the Merrimack River MA to Watch Hill RI out to 25 NM ANZ200-171200- 716 PM EDT Mon Jul 16 2018 .Synopsis for Massachusetts and Rhode Island coastal waters... Bermuda high pres will remain southeast of the waters tonight through much of Tue. A cold front will approach from the west late Tue afternoon, moving across the waters Tue night into Wed. High pres will follow for Thu and Fri. High pres will move east of the waters for Fri night and Sat. 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. $$ ANZ250-171200- Coastal waters east of Ipswich Bay and the Stellwagen Bank National Marine Sanctuary- 716 PM EDT Mon Jul 16 2018 ...SMALL CRAFT ADVISORY IN EFFECT FROM 6 AM EDT TUESDAY THROUGH TUESDAY EVENING... .TONIGHT...S winds 5 to 10 kt. Seas 3 to 5 ft. Patchy fog. Vsby 1 NM or less. .TUE...S winds 10 to 15 kt, increasing to 15 to 20 kt in the afternoon. Seas 3 to 5 ft. Patchy fog. Vsby 1 NM or less. .TUE NIGHT...S winds 10 to 15 kt with gusts up to 20 kt, becoming SW 5 to 10 kt after midnight. Seas 3 to 5 ft. Patchy fog. Showers likely with a chance of tstms. Some tstms may produce gusty winds, heavy rainfall, and frequent lightning. Vsby 1 NM or less. .WED...N winds 5 to 10 kt. Seas 2 to 4 ft. Patchy fog. Vsby 1 NM or less. .WED NIGHT...N winds 5 to 10 kt, increasing to 10 to 15 kt after midnight. Seas 3 to 5 ft. .THU...NE winds 5 to 10 kt. Seas 3 to 5 ft. .THU NIGHT...S winds 5 to 10 kt, becoming W after midnight. Seas 2 to 3 ft. .FRI...SW winds 5 to 10 kt. Seas 2 to 3 ft. .FRI NIGHT...S winds 5 to 10 kt. Seas 2 to 3 ft. .SAT...SE winds 5 to 10 kt. Seas around 2 ft. .SAT NIGHT...SE winds 5 to 10 kt. Seas 2 to 4 ft. Winds and seas higher in and near tstms. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ251-171200- Massachusetts Bay and Ipswich Bay- 716 PM EDT Mon Jul 16 2018 ...SMALL CRAFT ADVISORY IN EFFECT TUESDAY AFTERNOON... .TONIGHT...S winds 5 to 10 kt. Seas 2 to 4 ft. Patchy fog. Vsby 1 NM or less, increasing to 1 to 3 NM after midnight. .TUE...S winds 10 to 15 kt. Gusts up to 25 kt in the afternoon. Seas 2 to 4 ft. Patchy fog. A chance of showers. Vsby 1 NM or less. .TUE NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt, becoming W around 5 kt after midnight. Seas 2 to 4 ft. Patchy fog. Showers with tstms likely. Some tstms may produce gusty winds, heavy rainfall, and frequent lightning. Vsby 1 to 3 NM. .WED...N winds 5 to 10 kt. Seas 2 to 3 ft. .WED NIGHT...N winds 5 to 10 kt. Seas 2 to 4 ft. .THU...N winds 5 to 10 kt, becoming E in the afternoon. Seas 2 to 3 ft. .THU NIGHT...S winds around 5 kt, becoming SW after midnight. Seas around 2 ft. .FRI...S winds 5 to 10 kt. Seas around 2 ft. .FRI NIGHT...S winds 5 to 10 kt. Seas around 2 ft. .SAT...SE winds 5 to 10 kt. Seas around 2 ft. .SAT NIGHT...SE 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. $$ ANZ231-171200- Cape Cod Bay- 716 PM EDT Mon Jul 16 2018 ...SMALL CRAFT ADVISORY IN EFFECT TUESDAY AFTERNOON... .TONIGHT...S winds 5 to 10 kt. Seas around 2 ft. Patchy fog after midnight with vsby 1 to 3 NM. .TUE...SW winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 3 ft. Patchy fog. Vsby 1 NM or less. .TUE NIGHT...S winds 10 to 15 kt with gusts up to 20 kt, becoming SW 5 to 10 kt after midnight. Seas around 2 ft. Patchy fog. A chance of showers. Vsby 1 NM or less. .WED...N winds 5 to 10 kt. Seas around 2 ft. Patchy fog. A chance of showers. Vsby 1 to 3 NM. .WED NIGHT...N winds 5 to 10 kt. Seas around 2 ft. .THU...NE winds 5 to 10 kt. Seas around 2 ft. .THU NIGHT...SE winds around 5 kt, becoming SW around 5 kt after midnight. Seas 1 foot or less. .FRI...SW winds around 5 kt. Seas 1 foot or less. .FRI NIGHT...S winds around 5 kt. Seas 1 foot or less. .SAT...SE winds 5 to 10 kt. Seas 1 foot or less. .SAT NIGHT...SE winds 5 to 10 kt. Seas around 2 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ254-171200- Coastal waters from Provincetown MA to Chatham MA to Nantucket MA out 20 nm- 716 PM EDT Mon Jul 16 2018 ...SMALL CRAFT ADVISORY IN EFFECT FROM 6 AM EDT TUESDAY THROUGH TUESDAY EVENING... .TONIGHT...SW winds 5 to 10 kt. Seas 3 to 5 ft. Patchy fog this evening, then patchy dense fog after midnight. Vsby 1 NM or less. .TUE...SW winds 10 to 15 kt, becoming S 15 to 20 kt in the afternoon. Seas 3 to 5 ft. Patchy fog. Vsby 1 NM or less. .TUE NIGHT...SW winds 10 to 15 kt. Gusts up to 20 kt in the evening. Seas 3 to 5 ft. Patchy fog. A chance of showers. Vsby 1 NM or less. .WED...W winds 5 to 10 kt, becoming N in the afternoon. Seas 3 to 5 ft. Patchy fog. A chance of showers. Vsby 1 NM or less. .WED NIGHT...N winds 5 to 10 kt. Seas 3 to 5 ft. .THU...N winds 5 to 10 kt. Seas 3 to 5 ft. .THU NIGHT...E winds around 5 kt, becoming W around 5 kt after midnight. Seas 2 to 4 ft. .FRI...SW winds around 5 kt. Seas 2 to 4 ft. .FRI NIGHT...S winds around 5 kt. Seas 2 to 3 ft. .SAT...SE winds 5 to 10 kt. Seas 2 to 4 ft. .SAT NIGHT...SE winds 5 to 10 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. $$ ANZ255-171200- Coastal Waters extending out to 25 nm South of Marthas Vineyard and Nantucket- 716 PM EDT Mon Jul 16 2018 ...SMALL CRAFT ADVISORY IN EFFECT FROM 6 AM EDT TUESDAY THROUGH TUESDAY EVENING... .TONIGHT...SW winds 5 to 10 kt. Seas 2 to 4 ft. Patchy fog. Vsby 1 NM or less. .TUE...S winds 10 to 15 kt. Gusts up to 20 kt in the afternoon. Seas 3 to 5 ft. Patchy fog. Vsby 1 NM or less. .TUE NIGHT...S winds 10 to 15 kt, becoming SW 5 to 10 kt after midnight. Seas 3 to 5 ft. Patchy fog. A chance of showers. Vsby 1 NM or less. .WED...W winds 5 to 10 kt, becoming N in the afternoon. Seas 4 to 6 ft. Patchy fog. A chance of showers. Vsby 1 to 3 NM. .WED NIGHT...N winds 5 to 10 kt. Seas 4 to 6 ft. .THU...NE winds 5 to 10 kt. Seas 3 to 5 ft. .THU NIGHT...SE winds around 5 kt, becoming W around 5 kt after midnight. Seas 2 to 4 ft. .FRI...S winds around 5 kt. Seas 2 to 4 ft. .FRI NIGHT...S winds around 5 kt. Seas 2 to 3 ft. .SAT...SE winds 5 to 10 kt. Seas 3 to 5 ft. .SAT NIGHT...SE winds around 10 kt. Seas 3 to 5 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ256-171200- Coastal Waters from Montauk NY to Marthas Vineyard extending out to 20 nm South of Block Island- 716 PM EDT Mon Jul 16 2018 ...SMALL CRAFT ADVISORY IN EFFECT FROM 6 AM EDT TUESDAY THROUGH TUESDAY EVENING... .TONIGHT...SW winds 5 to 10 kt, increasing to 10 to 15 kt after midnight. Seas 3 to 5 ft. Patchy fog. Vsby 1 NM or less, increasing to 1 to 3 NM after midnight. .TUE...SW winds 10 to 15 kt, becoming S 15 to 20 kt in the afternoon. Seas around 5 ft. Patchy fog. Vsby 1 to 3 NM. .TUE NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt, diminishing to 5 to 10 kt after midnight. Seas 4 to 5 ft. Patchy fog. A chance of showers. Vsby 1 NM or less. .WED...N winds 5 to 10 kt. Seas 4 to 6 ft. Patchy fog. Vsby 1 to 3 NM. .WED NIGHT...N winds 5 to 10 kt. Seas 4 to 6 ft. .THU...N winds 5 to 10 kt, becoming SE in the afternoon. Seas 3 to 4 ft. .THU NIGHT...S winds around 5 kt. Seas 3 to 4 ft. .FRI...SW winds 5 to 10 kt. Seas around 3 ft. .FRI NIGHT...S winds 5 to 10 kt. Seas around 3 ft. .SAT...SE winds 5 to 10 kt. Seas 3 to 5 ft. .SAT NIGHT...SE winds around 10 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. $$ ANZ232-171200- Nantucket Sound- 716 PM EDT Mon Jul 16 2018 ...SMALL CRAFT ADVISORY IN EFFECT TUESDAY AFTERNOON... .TONIGHT...SW winds 5 to 10 kt. Seas around 2 ft. Patchy fog. Vsby 1 NM or less. .TUE...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. Patchy fog. Vsby 1 NM or less. .TUE NIGHT...S winds 10 to 15 kt, becoming SW 5 to 10 kt after midnight. Seas 2 to 3 ft. Patchy fog. A chance of showers. Vsby 1 NM or less. .WED...N winds 5 to 10 kt. Gusts up to 20 kt in the afternoon. Seas 2 to 3 ft. Patchy fog. A chance of showers. Vsby 1 NM or less. .WED NIGHT...N winds 5 to 10 kt. Seas 2 to 3 ft. .THU...NE winds 5 to 10 kt. Seas 2 to 3 ft. .THU NIGHT...SE winds around 5 kt, becoming W after midnight. Seas around 2 ft. .FRI...SW winds around 5 kt. Seas around 2 ft. .FRI NIGHT...S winds 5 to 10 kt. Seas around 2 ft. .SAT...SE winds 5 to 10 kt. Seas 2 to 3 ft. .SAT NIGHT...SE winds 5 to 10 kt. Seas 2 to 3 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ233-171200- Vineyard Sound- 716 PM EDT Mon Jul 16 2018 ...SMALL CRAFT ADVISORY IN EFFECT TUESDAY AFTERNOON... .TONIGHT...S winds 5 to 10 kt, becoming SW 10 to 15 kt after midnight. Seas 2 to 3 ft. Patchy dense fog this evening. Patchy fog after midnight. Vsby 1 NM or less, increasing to 1 to 3 NM after midnight. .TUE...SW winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 4 ft. Patchy fog. Vsby 1 NM or less. .TUE NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt, diminishing to 5 to 10 kt after midnight. Seas 2 to 3 ft. Patchy fog. A chance of showers. Vsby 1 NM or less. .WED...N winds 5 to 10 kt. Seas around 2 ft. Patchy fog. A chance of showers. Vsby 1 to 3 NM. .WED NIGHT...N winds 5 to 10 kt. Seas 2 to 3 ft. .THU...N winds 5 to 10 kt, becoming E in the afternoon. Seas 2 to 3 ft. .THU NIGHT...S winds around 5 kt, becoming SW after midnight. Seas 2 to 3 ft. .FRI...SW winds 5 to 10 kt. Seas around 2 ft. .FRI NIGHT...S winds 5 to 10 kt. Seas around 2 ft. .SAT...SE winds 5 to 10 kt. Seas around 2 ft. .SAT NIGHT...SE winds around 10 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. $$ ANZ234-171200- Buzzards Bay- 716 PM EDT Mon Jul 16 2018 ...SMALL CRAFT ADVISORY IN EFFECT TUESDAY AFTERNOON... .TONIGHT...SW winds 5 to 10 kt. Seas 2 to 3 ft. Patchy fog after midnight with vsby 1 to 3 NM. .TUE...SW winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 4 ft. Patchy fog. Vsby 1 NM or less. .TUE NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt, diminishing to 5 to 10 kt after midnight. Seas 2 to 4 ft. Patchy fog. A chance of showers. Vsby 1 NM or less. .WED...N winds 5 to 10 kt. Seas around 2 ft. Patchy fog. A chance of showers. Vsby 1 to 3 NM. .WED NIGHT...N winds 5 to 10 kt. Seas 2 to 3 ft. .THU...N winds 5 to 10 kt, becoming E in the afternoon. Seas around 2 ft. .THU NIGHT...S winds around 5 kt, becoming SW around 5 kt after midnight. Seas around 2 ft. .FRI...SW winds around 5 kt. Seas around 2 ft. .FRI NIGHT...S winds around 5 kt. Seas around 2 ft. .SAT...SE winds 5 to 10 kt. Seas around 2 ft. .SAT NIGHT...SE winds 5 to 10 kt. Seas around 2 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ235-171200- Rhode Island Sound- 716 PM EDT Mon Jul 16 2018 ...SMALL CRAFT ADVISORY IN EFFECT FROM TUESDAY MORNING THROUGH TUESDAY EVENING... .TONIGHT...S winds 5 to 10 kt, becoming SW 10 to 15 kt after midnight. Seas 3 to 5 ft. Patchy fog. Vsby 1 NM or less, increasing to 1 to 3 NM after midnight. .TUE...S winds 10 to 15 kt with gusts up to 25 kt. Seas 3 to 5 ft. Patchy fog. Vsby 1 NM or less. .TUE NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt, becoming W 5 to 10 kt after midnight. Seas 3 to 5 ft. Patchy fog. A chance of showers. Vsby 1 NM or less. .WED...N winds 5 to 10 kt. Seas 2 to 4 ft. Patchy fog. Vsby 1 to 3 NM. .WED NIGHT...N winds 5 to 10 kt. Seas 3 to 5 ft. .THU...N winds 5 to 10 kt, becoming SE in the afternoon. Seas 3 to 4 ft. .THU NIGHT...SW winds 5 to 10 kt. Seas 2 to 3 ft. .FRI...SW winds 5 to 10 kt. Seas 2 to 3 ft. .FRI NIGHT...S winds 5 to 10 kt. Seas 2 to 3 ft. .SAT...SE winds 5 to 10 kt. Seas 2 to 4 ft. .SAT NIGHT...SE winds 5 to 10 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. $$ ANZ237-171200- Block Island Sound- 716 PM EDT Mon Jul 16 2018 ...SMALL CRAFT ADVISORY IN EFFECT FROM TUESDAY MORNING THROUGH TUESDAY EVENING... .TONIGHT...SW winds 5 to 10 kt. Seas 2 to 4 ft. Patchy fog after midnight with vsby 1 to 3 NM. .TUE...SW winds 10 to 15 kt. Gusts up to 25 kt in the afternoon. Seas 3 to 5 ft. Patchy fog. Vsby 1 to 3 NM. .TUE NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt, becoming W 5 to 10 kt after midnight. Seas 3 to 5 ft. Patchy fog. Showers likely with a chance of tstms. Some tstms may produce heavy rainfall. Vsby 1 to 3 NM. .WED...NW winds 5 to 10 kt. Seas 2 to 4 ft. Patchy fog. Vsby 1 to 3 NM. .WED NIGHT...N winds around 5 kt, increasing to 5 to 10 kt after midnight. Seas 2 to 4 ft. .THU...NE winds 5 to 10 kt, becoming SE in the afternoon. Seas 2 to 4 ft. .THU NIGHT...SW winds around 5 kt. Seas 2 to 3 ft. .FRI...SW winds 5 to 10 kt. Seas 2 to 3 ft. .FRI NIGHT...S winds around 5 kt. Seas 2 to 3 ft. .SAT...SE winds 5 to 10 kt. Seas 2 to 4 ft. .SAT NIGHT...SE winds 5 to 10 kt. Seas 2 to 4 ft. Winds and seas higher in and near tstms. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ230-171200- Boston Harbor- 716 PM EDT Mon Jul 16 2018 ...SMALL CRAFT ADVISORY IN EFFECT TUESDAY AFTERNOON... .TONIGHT...S winds 5 to 10 kt. Waves around 2 ft. Patchy fog. Vsby 1 to 3 NM this evening. .TUE...SW winds 5 to 10 kt, becoming S 10 to 15 kt with gusts up to 25 kt in the afternoon. Waves around 2 ft. Patchy fog. A chance of showers and tstms. Some tstms may produce gusty winds, heavy rainfall, and frequent lightning. Vsby 1 to 3 NM. .TUE NIGHT...W winds 5 to 10 kt. Gusts up to 20 kt in the evening. Waves around 2 ft. Patchy fog. Showers with tstms likely. Some tstms may produce gusty winds, heavy rainfall, and frequent lightning. Vsby 1 to 3 NM. .WED...N winds around 5 kt. Waves 1 foot or less. .WED NIGHT...N winds around 5 kt. Waves 1 foot or less. .THU...N winds around 5 kt, becoming E in the afternoon. Waves 1 foot or less. .THU NIGHT...S winds around 5 kt, becoming SW after midnight. Waves 1 foot or less. .FRI...S winds around 5 kt. Waves 1 foot or less. .FRI NIGHT...S winds around 5 kt. Waves 1 foot or less. .SAT...SE winds 5 to 10 kt. Waves 1 foot or less. .SAT NIGHT...SE 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. $$ ANZ236-171200- Narragansett Bay- 716 PM EDT Mon Jul 16 2018 ...SMALL CRAFT ADVISORY IN EFFECT TUESDAY AFTERNOON... .TONIGHT...S winds 5 to 10 kt. Waves 2 to 3 ft. Patchy fog after midnight with vsby 1 to 3 NM. .TUE...S winds 10 to 15 kt. Gusts up to 25 kt in the afternoon. Waves 2 to 4 ft. Patchy fog. Vsby 1 NM or less. .TUE NIGHT...SW winds 5 to 10 kt. Gusts up to 20 kt in the evening. Waves 2 to 4 ft. Patchy fog. A chance of showers. Vsby 1 to 3 NM. .WED...N winds 5 to 10 kt. Gusts up to 20 kt in the morning. Waves 2 to 3 ft. .WED NIGHT...N winds around 5 kt. Waves 2 to 3 ft. .THU...N winds around 5 kt, becoming SE in the afternoon. Waves 2 to 3 ft. .THU NIGHT...SW winds around 5 kt. Waves 2 to 3 ft. .FRI...SW winds 5 to 10 kt. Waves around 2 ft. .FRI NIGHT...S winds around 5 kt. Waves around 2 ft. .SAT...SE winds 5 to 10 kt. Waves around 2 ft. .SAT NIGHT...SE winds 5 to 10 kt. Waves 2 to 3 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ 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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