Coastal Waters Forecast
Issued by NWS Boston, MA

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000 FZUS51 KBOX 182356 CWFBOX Coastal Waters Forecast National Weather Service Taunton MA 756 PM EDT Tue Jul 18 2017 COASTAL WATERS FROM THE MERRIMACK RIVER MA TO WATCH HILL RI OUT TO 25 NM ANZ200-191200- 756 PM EDT Tue Jul 18 2017 .Synopsis for Massachusetts and Rhode Island coastal waters... Weak high pressure shifts offshore, providing a light south to southwest flow of warm humid air over the waters for much of the week. Locally dense fog may limit visibility each night. A weak cold front will move across the waters Thursday. A warm front will move north of the waters by Sunday. 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. $$ ANZ250-191200- Coastal waters east of Ipswich Bay and the Stellwagen Bank National Marine Sanctuary- 756 PM EDT Tue Jul 18 2017 .TONIGHT...SW winds 5 to 10 kt with gusts up to 20 kt. Seas around 2 ft. Patchy fog. A chance of showers with isolated tstms this evening. Vsby 1 NM or less after midnight. .WED...SW winds 5 to 10 kt, becoming S 10 to 15 kt with gusts up to 20 kt in the afternoon. Seas 2 to 3 ft. Patchy fog. Vsby 1 NM or less. .WED NIGHT...S winds 15 to 20 kt, becoming SW 10 to 15 kt after midnight. Seas 2 to 4 ft. .THU...W winds 5 to 10 kt, becoming S in the afternoon. Seas 2 to 3 ft. .THU NIGHT...SW winds 5 to 10 kt. Seas around 2 ft. .FRI...SW winds 5 to 10 kt. Seas 2 to 3 ft. .FRI NIGHT...W winds 5 to 10 kt. Seas 2 to 3 ft. .SAT...SW winds 5 to 10 kt. Seas 2 to 3 ft. .SAT NIGHT...NW winds 5 to 10 kt. Seas around 2 ft. .SUN...E winds 5 to 10 kt. Seas around 2 ft. A chance of showers. .SUN NIGHT...SE winds 5 to 10 kt. Seas 1 foot or less. A chance of showers. Winds and seas higher in and near tstms. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ251-191200- Massachusetts Bay and Ipswich Bay- 756 PM EDT Tue Jul 18 2017 .TONIGHT...SW winds 5 to 10 kt. Seas 1 foot or less. Patchy fog. Showers likely with isolated tstms this evening. Vsby 1 to 3 NM, decreasing to 1 NM or less after midnight. .WED...SW winds 5 to 10 kt, becoming S 10 to 15 kt with gusts up to 20 kt in the afternoon. Seas around 2 ft. Patchy fog. Vsby 1 NM or less. .WED NIGHT...SW winds 10 to 15 kt. Gusts up to 20 kt in the evening. Seas around 2 ft. .THU...W winds 5 to 10 kt, becoming S in the afternoon. Seas around 2 ft. .THU NIGHT...SW winds around 5 kt. Seas 1 foot or less. .FRI...SW winds around 5 kt, increasing to 5 to 10 kt in the afternoon. Seas 1 foot or less. .FRI NIGHT...W winds 5 to 10 kt. Seas 1 foot or less. .SAT...SW winds around 5 kt. Seas 1 foot or less. A chance of showers. .SAT NIGHT...NW winds around 5 kt. Seas 1 foot or less. .SUN...E winds 5 to 10 kt. Seas 1 foot or less. A chance of showers. .SUN NIGHT...SE winds 5 to 10 kt. Seas 1 foot or less. A chance of 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. $$ ANZ231-191200- Cape Cod Bay- 756 PM EDT Tue Jul 18 2017 .TONIGHT...SW winds 5 to 10 kt. Seas 1 foot or less. A slight chance of showers with isolated tstms this evening. Patchy fog after midnight with vsby 1 to 3 NM. .WED...SW winds 5 to 10 kt, becoming S 10 to 15 kt with gusts up to 20 kt in the afternoon. Seas around 2 ft. Areas of fog. Vsby 1 NM or less. .WED NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft. Patchy fog. Vsby 1 to 3 NM. .THU...SW winds 5 to 10 kt. Seas 1 foot or less. .THU NIGHT...SW winds around 5 kt. Seas 1 foot or less. Patchy fog. .FRI...SW winds 5 to 10 kt. Seas 1 foot or less. .FRI NIGHT...W winds 5 to 10 kt. Seas 1 foot or less. .SAT...SW winds around 5 kt. Seas 1 foot or less. A chance of showers. .SAT NIGHT...NW winds 5 to 10 kt. Seas 1 foot or less. .SUN...E winds 5 to 10 kt. Seas 1 foot or less. A chance of showers. .SUN NIGHT...S winds 5 to 10 kt. Seas 1 foot or less. A chance of showers. Winds and seas higher in and near tstms. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ254-191200- Coastal waters from Provincetown MA to Chatham MA to Nantucket MA out 20 nm- 756 PM EDT Tue Jul 18 2017 .TONIGHT...SW winds 5 to 10 kt with gusts up to 20 kt. Seas around 2 ft. Patchy fog this evening, then areas of dense fog after midnight. Vsby 1 NM or less. .WED...SW winds 5 to 10 kt, becoming S 10 to 15 kt with gusts up to 20 kt in the afternoon. Seas around 2 ft. Areas of fog. Vsby 1 NM or less. .WED NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Patchy fog. Vsby 1 NM or less. .THU...SW winds 5 to 10 kt. Seas 2 to 3 ft. Patchy fog. Vsby 1 to 3 NM. .THU NIGHT...SW winds 5 to 10 kt. Seas 2 to 3 ft. Patchy fog. Vsby 1 to 3 NM. .FRI...SW winds 5 to 10 kt. Seas 2 to 3 ft. Patchy fog. .FRI NIGHT...W winds 5 to 10 kt. Seas 2 to 4 ft. .SAT...W winds around 5 kt. Seas 2 to 3 ft. A chance of showers. .SAT NIGHT...W winds 5 to 10 kt. Seas 2 to 3 ft. .SUN...SE winds 5 to 10 kt. Seas 2 to 3 ft. A chance of showers. .SUN NIGHT...S winds 5 to 10 kt. Seas 2 to 3 ft. A chance of 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. $$ ANZ255-191200- Coastal Waters extending out to 25 nm South of Marthas Vineyard and Nantucket- 756 PM EDT Tue Jul 18 2017 .TONIGHT...SW winds 5 to 10 kt. Seas around 2 ft. Patchy fog this evening, then areas of dense fog after midnight. Vsby 1 NM or less. .WED...SW winds 5 to 10 kt, increasing to 10 to 15 kt with gusts up to 20 kt in the afternoon. Seas around 2 ft. Areas of fog. Vsby 1 NM or less. .WED NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Patchy fog. Vsby 1 to 3 NM. .THU...SW winds 5 to 10 kt. Seas 2 to 3 ft. Patchy fog. Vsby 1 to 3 NM. .THU NIGHT...SW winds 5 to 10 kt. Seas 2 to 3 ft. Patchy fog. Vsby 1 to 3 NM. .FRI...SW winds 5 to 10 kt. Seas 2 to 3 ft. Patchy fog. .FRI NIGHT...W winds 5 to 10 kt. Seas 2 to 4 ft. .SAT...W winds around 5 kt. Seas 2 to 3 ft. A chance of showers. .SAT NIGHT...SW winds around 5 kt. Seas 2 to 3 ft. .SUN...SE winds 5 to 10 kt. Seas 2 to 3 ft. A chance of showers. .SUN NIGHT...S winds 5 to 10 kt. Seas 2 to 3 ft. A chance of showers. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ256-191200- Coastal Waters from Montauk NY to Marthas Vineyard extending out to 20 nm South of Block Island- 756 PM EDT Tue Jul 18 2017 .TONIGHT...SW winds 5 to 10 kt. Seas around 2 ft. Patchy fog. Vsby 1 to 3 NM, decreasing to 1 NM or less after midnight. .WED...SW winds 5 to 10 kt, increasing to 10 to 15 kt with gusts up to 20 kt in the afternoon. Seas around 2 ft. Areas of fog. Vsby 1 NM or less. .WED NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Patchy fog. Vsby 1 to 3 NM. .THU...SW winds 5 to 10 kt. Seas 2 to 3 ft. Patchy fog. Vsby 1 to 3 NM. .THU NIGHT...SW winds 5 to 10 kt. Seas 2 to 3 ft. Patchy fog. Vsby 1 to 3 NM. .FRI...SW winds 5 to 10 kt. Seas 2 to 3 ft. Patchy fog. .FRI NIGHT...W winds 5 to 10 kt. Seas 3 to 4 ft. .SAT...SW winds around 5 kt. Seas 2 to 3 ft. A chance of showers. .SAT NIGHT...SW winds around 5 kt. Seas 2 to 3 ft. .SUN...SE winds 5 to 10 kt. Seas 2 to 3 ft. A chance of showers. .SUN NIGHT...SW winds 5 to 10 kt. Seas around 3 ft. A chance of 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. $$ ANZ232-191200- Nantucket Sound- 756 PM EDT Tue Jul 18 2017 .TONIGHT...SW winds 5 to 10 kt. Seas 1 foot or less. Patchy fog this evening, then areas of fog after midnight. Vsby 1 NM or less. .WED...SW winds 5 to 10 kt, increasing to 10 to 15 kt with gusts up to 20 kt in the afternoon. Seas around 2 ft. Areas of fog. Vsby 1 NM or less. .WED NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft. Patchy fog. Vsby 1 NM or less. .THU...SW winds 5 to 10 kt. Seas 1 foot or less. Patchy fog. Vsby 1 to 3 NM. .THU NIGHT...SW winds 5 to 10 kt. Seas 1 foot or less. Patchy fog. Vsby 1 to 3 NM. .FRI...SW winds 5 to 10 kt. Seas around 2 ft. .FRI NIGHT...W winds 5 to 10 kt. Seas around 2 ft. .SAT...W winds around 5 kt. Seas 1 foot or less. A chance of showers. .SAT NIGHT...NW winds around 5 kt. Seas 1 foot or less. .SUN...SE winds 5 to 10 kt. Seas 1 foot or less. A chance of showers. .SUN NIGHT...S winds 5 to 10 kt. Seas 1 foot or less. A chance of showers. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ233-191200- Vineyard Sound- 756 PM EDT Tue Jul 18 2017 .TONIGHT...SW winds 5 to 10 kt. Seas 1 foot or less. Patchy fog this evening, then areas of fog after midnight with vsby 1 NM or less. .WED...SW winds 5 to 10 kt, increasing to 10 to 15 kt with gusts up to 20 kt in the afternoon. Seas around 2 ft. Areas of dense fog. Vsby 1 NM or less. .WED NIGHT...SW winds around 10 kt with gusts up to 20 kt. Seas around 2 ft. Patchy fog. Vsby 1 to 3 NM. .THU...SW winds 5 to 10 kt. Seas around 2 ft. Patchy fog. Vsby 1 to 3 NM. .THU NIGHT...SW winds 5 to 10 kt. Seas around 2 ft. Patchy fog. Vsby 1 to 3 NM. .FRI...SW winds 5 to 10 kt, increasing to 10 to 15 kt in the afternoon. Seas around 2 ft. Patchy fog. .FRI NIGHT...W winds 5 to 10 kt. Seas 2 to 3 ft. .SAT...W winds 5 to 10 kt. Seas around 2 ft. A chance of showers. .SAT NIGHT...W winds 5 to 10 kt. Seas around 2 ft. .SUN...SE winds 5 to 10 kt. Seas 1 foot or less. A chance of showers. .SUN NIGHT...S winds 5 to 10 kt. Seas around 2 ft. A chance of 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. $$ ANZ234-191200- Buzzards Bay- 756 PM EDT Tue Jul 18 2017 .TONIGHT...SW winds 5 to 10 kt. Seas 1 foot or less. Patchy fog this evening, then areas of fog after midnight with vsby 1 NM or less. .WED...SW winds 5 to 10 kt, increasing to 10 to 15 kt with gusts up to 20 kt in the afternoon. Seas around 2 ft. Areas of dense fog. Vsby 1 NM or less. .WED NIGHT...SW winds 10 to 15 kt, diminishing to 5 to 10 kt after midnight. Gusts up to 20 kt. Seas around 2 ft. Patchy fog. Vsby 1 NM or less. .THU...SW winds 5 to 10 kt. Seas around 2 ft. .THU NIGHT...SW winds 5 to 10 kt. Seas around 2 ft. Patchy fog. Vsby 1 to 3 NM. .FRI...SW winds 5 to 10 kt. Seas around 2 ft. .FRI NIGHT...W winds 5 to 10 kt. Seas around 2 ft. .SAT...W winds 5 to 10 kt. Seas 1 foot or less. A chance of showers. .SAT NIGHT...W winds 5 to 10 kt. Seas 1 foot or less. .SUN...SE winds 5 to 10 kt. Seas 1 foot or less. A chance of showers. .SUN NIGHT...S winds 5 to 10 kt. Seas 1 foot or less. A chance of showers. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ235-191200- Rhode Island Sound- 756 PM EDT Tue Jul 18 2017 .TONIGHT...SW winds 5 to 10 kt. Seas around 2 ft. Patchy fog. Vsby 1 to 3 NM, decreasing to 1 NM or less after midnight. .WED...SW winds 5 to 10 kt, becoming S 10 to 15 kt with gusts up to 20 kt in the afternoon. Seas around 2 ft. Areas of fog. Vsby 1 NM or less. .WED NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft. Patchy fog. Vsby 1 to 3 NM. .THU...SW winds 5 to 10 kt. Seas around 2 ft. Patchy fog. Vsby 1 to 3 NM. .THU NIGHT...SW winds 5 to 10 kt. Seas around 2 ft. Patchy fog. Vsby 1 to 3 NM. .FRI...SW winds 5 to 10 kt, increasing to 10 to 15 kt with gusts up to 20 kt in the afternoon. Seas 2 to 3 ft. .FRI NIGHT...W winds 5 to 10 kt. Seas 2 to 3 ft. .SAT...W winds around 5 kt. Seas 2 to 3 ft. A chance of showers. .SAT NIGHT...W winds 5 to 10 kt. Seas 2 to 3 ft. .SUN...SE winds 5 to 10 kt. Seas 2 to 3 ft. A chance of showers. .SUN NIGHT...SW winds 5 to 10 kt. Seas 2 to 3 ft. A chance of 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. $$ ANZ237-191200- Block Island Sound- 756 PM EDT Tue Jul 18 2017 .TONIGHT...SW winds 5 to 10 kt. Seas around 2 ft. Patchy fog this evening, then areas of fog after midnight with vsby 1 NM or less. .WED...SW winds 5 to 10 kt, becoming S 10 to 15 kt with gusts up to 20 kt in the afternoon. Seas around 2 ft. Areas of fog. Vsby 1 NM or less. .WED NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt, becoming W 5 to 10 kt after midnight. Seas around 2 ft. Patchy fog. Vsby 1 to 3 NM. .THU...SW winds 5 to 10 kt. Seas around 2 ft. .THU NIGHT...SW winds 5 to 10 kt, becoming W after midnight. Seas around 2 ft. .FRI...SW winds around 5 kt, increasing to 5 to 10 kt in the afternoon. Seas 2 to 3 ft. .FRI NIGHT...W winds 5 to 10 kt. Seas 2 to 3 ft. A chance of showers. .SAT...SW winds around 5 kt. Seas 2 to 3 ft. A chance of showers. .SAT NIGHT...W winds around 5 kt. Seas 2 to 3 ft. .SUN...SE winds 5 to 10 kt. Seas 2 to 3 ft. A chance of showers. .SUN NIGHT...SW winds 5 to 10 kt. Seas 2 to 3 ft. A chance of showers. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ230-191200- Boston Harbor- 756 PM EDT Tue Jul 18 2017 .TONIGHT...SW winds around 5 kt. Seas 1 foot or less. Patchy fog. Showers likely with isolated tstms this evening. Vsby 1 to 3 NM after midnight. .WED...SW winds around 5 kt, becoming SE in the afternoon. Seas 1 foot or less. Patchy fog. Vsby 1 NM or less. .WED NIGHT...SW winds 5 to 10 kt. Seas 1 foot or less. .THU...SW winds 5 to 10 kt. Seas 1 foot or less. .THU NIGHT...S winds around 5 kt, becoming SW after midnight. Seas 1 foot or less. .FRI...SW winds around 5 kt. Seas 1 foot or less. .FRI NIGHT...W winds around 5 kt. Seas 1 foot or less. .SAT...W winds around 5 kt. Seas 1 foot or less. A chance of showers. .SAT NIGHT...W winds around 5 kt. Seas 1 foot or less. .SUN...E winds around 5 kt. Seas 1 foot or less. A chance of showers. .SUN NIGHT...S winds around 5 kt. Seas 1 foot or less. A chance of 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. $$ ANZ236-191200- Narragansett Bay- 756 PM EDT Tue Jul 18 2017 .TONIGHT...SW winds 5 to 10 kt. Seas 1 foot or less. A chance of showers with isolated tstms this evening. Patchy fog after midnight with vsby 1 NM or less. .WED...SW winds 5 to 10 kt, becoming S 10 to 15 kt with gusts up to 20 kt in the afternoon. Seas around 2 ft. Patchy fog. Vsby 1 NM or less. .WED NIGHT...SW winds 5 to 10 kt. Gusts up to 20 kt in the evening. Seas 1 foot or less. Patchy fog. Vsby 1 to 3 NM. .THU...W winds 5 to 10 kt. Seas 1 foot or less. .THU NIGHT...SW winds 5 to 10 kt, becoming W after midnight. Seas 1 foot or less. .FRI...SW winds around 5 kt, increasing to 5 to 10 kt in the afternoon. Seas 1 foot or less. .FRI NIGHT...W winds 5 to 10 kt. Seas 1 foot or less. .SAT...W winds around 5 kt. Seas 1 foot or less. A chance of showers. .SAT NIGHT...W winds around 5 kt. Seas 1 foot or less. .SUN...SE winds 5 to 10 kt. Seas 1 foot or less. A chance of showers. .SUN NIGHT...S winds around 5 kt. Seas 1 foot or less. A chance of showers. Winds and seas higher in and near tstms. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ 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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