Coastal Waters Forecast
Issued by NWS Boston, MA

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000 FZUS51 KBOX 181716 CWFBOX Coastal Waters Forecast National Weather Service Taunton MA 116 PM EDT Tue Jul 18 2017 COASTAL WATERS FROM THE MERRIMACK RIVER MA TO WATCH HILL RI OUT TO 25 NM ANZ200-190600- 116 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. $$ ANZ250-190600- Coastal waters east of Ipswich Bay and the Stellwagen Bank National Marine Sanctuary- 116 PM EDT Tue Jul 18 2017 .THIS AFTERNOON...S winds 5 to 10 kt. Seas 2 to 3 ft. Areas of fog. Isolated showers and tstms. Some tstms may produce heavy rainfall. Vsby 1 NM or less. .TONIGHT...SW winds 5 to 10 kt. Seas 2 to 4 ft. Areas of fog. Vsby 1 NM or less. .WED...SW winds 5 to 10 kt, becoming S 15 to 20 kt in the afternoon. Seas 2 to 3 ft. Areas of fog. Vsby 1 NM or less. .WED NIGHT...S winds 10 to 15 kt with gusts up to 20 kt, becoming SW 5 to 10 kt after midnight. Seas 2 to 4 ft. Patchy fog. Vsby 1 NM or less. .THU...W winds 5 to 10 kt, becoming S in the afternoon. Seas 2 to 3 ft. Patchy fog. Vsby 1 NM or less. .THU NIGHT...SW winds 5 to 10 kt. Seas around 2 ft. .FRI...SW winds 5 to 10 kt. Seas 2 to 3 ft. .FRI NIGHT...W winds 5 to 10 kt. Seas 2 to 3 ft. .SAT...SW winds 5 to 10 kt. Seas around 2 ft. .SAT NIGHT...S winds 5 to 10 kt. Seas 2 to 3 ft. Winds and seas higher in and near tstms. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ251-190600- Massachusetts Bay and Ipswich Bay- 116 PM EDT Tue Jul 18 2017 .THIS AFTERNOON...SE winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Scattered showers with isolated tstms. Some tstms may produce heavy rainfall. Vsby 1 to 3 NM. .TONIGHT...SW winds 5 to 10 kt. Seas 2 to 3 ft. Scattered showers. .WED...SW winds around 5 kt, becoming S 15 to 20 kt in the afternoon. Seas 2 to 3 ft. Areas of fog. Vsby 1 NM or less. .WED 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. .THU...W winds around 5 kt, becoming S in the afternoon. Seas around 2 ft. .THU NIGHT...SW winds around 5 kt. Seas around 2 ft. .FRI...W winds around 5 kt. Seas 1 foot or less. .FRI NIGHT...W winds around 5 kt. Seas 1 foot or less. .SAT...SW winds around 5 kt. Seas 1 foot or less. A chance of showers. .SAT NIGHT...SW winds around 5 kt. Seas 1 foot or less. 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. $$ ANZ231-190600- Cape Cod Bay- 116 PM EDT Tue Jul 18 2017 .THIS AFTERNOON...S winds 5 to 10 kt with gusts up to 20 kt. Seas 1 to 2 ft. .TONIGHT...SW winds 5 to 10 kt. Seas around 2 ft. Areas of fog. Vsby 1 NM or less. .WED...SW winds around 5 kt, becoming S 10 to 15 kt with gusts up to 20 kt in the afternoon. Seas around 2 ft. Areas of fog. Vsby 1 NM or less. .WED NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt, diminishing to 5 to 10 kt after midnight. Seas around 2 ft. Patchy fog. Vsby 1 NM or less. .THU...W winds around 5 kt, becoming S in the afternoon. Seas around 2 ft. Patchy fog. Vsby 1 NM or less. .THU NIGHT...SW winds around 5 kt. Seas 1 foot or less. A chance of showers. Vsby 1 to 3 NM. .FRI...SW winds around 5 kt. Seas 1 foot or less. .FRI NIGHT...W winds 5 to 10 kt. Seas 1 foot or less. .SAT...SW winds around 5 kt. Seas 1 foot or less. A chance of showers. .SAT NIGHT...S winds 5 to 10 kt. Seas 1 foot or less. A chance of showers. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ254-190600- Coastal waters from Provincetown MA to Chatham MA to Nantucket MA out 20 nm- 116 PM EDT Tue Jul 18 2017 .THIS AFTERNOON...S winds 5 to 10 kt. Seas 2 to 3 ft. Areas of fog. Vsby 1 NM or less. .TONIGHT...SW winds 5 to 10 kt. Seas 2 to 4 ft. Areas of fog. 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 2 to 3 ft. Areas of fog. Vsby 1 NM or less. .WED NIGHT...SW winds 10 to 15 kt, diminishing to 5 to 10 kt after midnight. Seas 2 to 4 ft. Areas of fog. Vsby 1 NM or less. .THU...SW winds 5 to 10 kt. Seas 2 to 4 ft. Areas of fog. Vsby 1 NM or less. .THU NIGHT...SW winds 5 to 10 kt. Seas 2 to 3 ft. .FRI...SW winds 5 to 10 kt with gusts up to 20 kt. 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...S 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. $$ ANZ255-190600- Coastal Waters extending out to 25 nm South of Marthas Vineyard and Nantucket- 116 PM EDT Tue Jul 18 2017 .THIS AFTERNOON...S winds 5 to 10 kt. Seas 2 to 3 ft. Areas of fog. Vsby 1 NM or less. .TONIGHT...SW winds 5 to 10 kt. Seas around 3 ft. Areas of fog. Vsby 1 NM or less. .WED...SW winds 5 to 10 kt. Gusts up to 20 kt in the afternoon. Seas 2 to 3 ft. Areas of fog. Vsby 1 NM or less. .WED NIGHT...SW winds 5 to 10 kt with gusts up to 25 kt. Seas 2 to 4 ft. Areas of fog. Vsby 1 NM or less. .THU...SW winds 5 to 10 kt. Seas 2 to 3 ft. Areas of fog. Vsby 1 NM or less. .THU NIGHT...SW winds 5 to 10 kt. Seas 2 to 3 ft. Areas of fog. Vsby 1 to 3 NM. .FRI...SW winds 5 to 10 kt with gusts up to 20 kt. Seas 2 to 3 ft. .FRI NIGHT...W winds 5 to 10 kt. Seas 2 to 3 ft. .SAT...W winds 5 to 10 kt. Seas 2 to 3 ft. A chance of showers. .SAT NIGHT...S winds around 5 kt. Seas 2 to 4 ft. A chance of showers. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ256-190600- Coastal Waters from Montauk NY to Marthas Vineyard extending out to 20 nm South of Block Island- 116 PM EDT Tue Jul 18 2017 .THIS AFTERNOON...S winds 5 to 10 kt. Seas around 3 ft. Areas of fog. Vsby 1 NM or less. .TONIGHT...SW winds 5 to 10 kt. Seas around 3 ft. Areas of fog. 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 2 to 3 ft. Areas of 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 3 to 4 ft. Areas of fog. Vsby 1 NM or less. .THU...SW winds 5 to 10 kt. Seas 2 to 3 ft. Areas of fog. Vsby 1 NM or less. .THU NIGHT...SW winds 5 to 10 kt. Seas 2 to 3 ft. Areas of fog. Vsby 1 to 3 NM. .FRI...SW winds 5 to 10 kt with gusts up to 20 kt. Seas 2 to 3 ft. .FRI NIGHT...W winds 5 to 10 kt. Seas around 3 ft. .SAT...W winds 5 to 10 kt. Seas 2 to 3 ft. A chance of showers. .SAT NIGHT...S winds 5 to 10 kt. Seas 2 to 4 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. $$ ANZ232-190600- Nantucket Sound- 116 PM EDT Tue Jul 18 2017 .THIS AFTERNOON...S winds 5 to 10 kt with gusts up to 20 kt. Seas 1 to 2 ft. Areas of fog. Vsby 1 NM or less. .TONIGHT...SW winds 5 to 10 kt. Seas around 2 ft. Areas of fog. Vsby 1 NM or less. .WED...SW winds 5 to 10 kt, increasing to 10 to 15 kt with gusts up to 20 kt in the afternoon. Seas 2 to 3 ft. Areas of fog. Vsby 1 NM or less. .WED NIGHT...SW winds 5 to 10 kt with gusts up to 20 kt. Seas 2 to 3 ft. Areas of fog. Vsby 1 NM or less. .THU...SW winds 5 to 10 kt. Seas around 2 ft. Areas of fog. Vsby 1 NM or less. .THU NIGHT...SW winds 5 to 10 kt. Seas around 2 ft. .FRI...SW winds 5 to 10 kt with gusts up to 20 kt. Seas around 2 ft. .FRI NIGHT...W winds 5 to 10 kt. Seas around 2 ft. .SAT...SW winds around 5 kt. Seas 1 foot or less. A chance of showers. .SAT NIGHT...S winds around 5 kt. Seas 1 foot or less. A chance of showers. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ233-190600- Vineyard Sound- 116 PM EDT Tue Jul 18 2017 .THIS AFTERNOON...SW winds 5 to 10 kt with gusts up to 20 kt. Seas 2 to 3 ft. Areas of fog. Vsby 1 NM or less. .TONIGHT...SW winds 5 to 10 kt. Seas around 2 ft. Areas of fog. 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 2 to 3 ft. Areas of fog. Vsby 1 NM or less. .WED NIGHT...SW winds 5 to 10 kt with gusts up to 20 kt. Seas 2 to 3 ft. Areas of fog. Vsby 1 to 3 NM. .THU...SW winds 5 to 10 kt. Seas 2 to 3 ft. Areas of fog. Vsby 1 to 3 NM. .THU NIGHT...SW winds 5 to 10 kt. Seas 2 to 3 ft. .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 around 2 ft. A chance of showers. .SAT NIGHT...S winds around 5 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. $$ ANZ234-190600- Buzzards Bay- 116 PM EDT Tue Jul 18 2017 .THIS AFTERNOON...SW winds 5 to 10 kt with gusts up to 20 kt. Seas 2 to 3 ft. Areas of fog. Vsby 1 NM or less. .TONIGHT...SW winds 5 to 10 kt, diminishing to around 5 kt after midnight. Seas around 2 ft. Areas of fog. Vsby 1 NM or less. .WED...SW winds 5 to 10 kt, increasing to 10 to 15 kt with gusts up to 20 kt in the afternoon. Seas 2 to 3 ft. Areas of fog. Vsby 1 NM or less. .WED NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt, diminishing to 5 to 10 kt after midnight. Seas around 2 ft. Areas of fog. Vsby 1 to 3 NM. .THU...SW winds 5 to 10 kt. Gusts up to 20 kt in the afternoon. Seas 2 to 3 ft. Areas of fog. Vsby 1 to 3 NM. .THU NIGHT...SW winds 5 to 10 kt. Seas around 2 ft. .FRI...SW winds 5 to 10 kt with gusts up to 20 kt. Seas around 2 ft. .FRI NIGHT...W winds 5 to 10 kt. Seas around 2 ft. .SAT...W winds around 5 kt. Seas 1 foot or less. A chance of showers. .SAT NIGHT...S winds around 5 kt. Seas 1 foot or less. A chance of showers. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ235-190600- Rhode Island Sound- 116 PM EDT Tue Jul 18 2017 .THIS AFTERNOON...S winds 5 to 10 kt with gusts up to 20 kt. Seas 2 to 3 ft. Areas of fog. Vsby 1 NM or less. .TONIGHT...SW winds 5 to 10 kt. Seas 2 to 3 ft. Areas of fog. 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 2 to 3 ft. Areas of fog. Vsby 1 NM or less. .WED NIGHT...SW winds 5 to 10 kt with gusts up to 20 kt. Seas 2 to 4 ft. Areas of fog. Vsby 1 to 3 NM. .THU...SW winds 5 to 10 kt. Gusts up to 20 kt in the afternoon. Seas 2 to 3 ft. Areas of fog. Vsby 1 to 3 NM. .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...W winds 5 to 10 kt. Seas around 2 ft. A chance of showers. .SAT 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. $$ ANZ237-190600- Block Island Sound- 116 PM EDT Tue Jul 18 2017 .THIS AFTERNOON...SW winds 5 to 10 kt with gusts up to 20 kt. Seas 2 to 3 ft. Areas of fog. Vsby 1 NM or less. .TONIGHT...SW winds 5 to 10 kt, diminishing to around 5 kt after midnight. Seas 2 to 3 ft. Areas of fog. Vsby 1 NM or less. .WED...SW winds 5 to 10 kt, increasing to 10 to 15 kt with gusts up to 20 kt in the afternoon. Seas 2 to 3 ft. Areas of fog. Vsby 1 NM or less. .WED NIGHT...SW winds 10 to 15 kt, diminishing to 5 to 10 kt after midnight. Gusts up to 20 kt. Seas 2 to 4 ft. Areas of fog. Vsby 1 NM or less. .THU...SW winds 5 to 10 kt. Seas 2 to 3 ft. Patchy fog. Vsby 1 NM or less. .THU NIGHT...W winds 5 to 10 kt. Seas around 2 ft. .FRI...W winds 5 to 10 kt with gusts up to 20 kt. Seas 2 to 3 ft. .FRI NIGHT...W winds 5 to 10 kt. Seas 2 to 3 ft. .SAT...W winds 5 to 10 kt. Seas around 2 ft. A chance of showers. .SAT NIGHT...SW winds 5 to 10 kt. Seas 2 to 3 ft. A chance of showers. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ230-190600- Boston Harbor- 116 PM EDT Tue Jul 18 2017 .THIS AFTERNOON...SE winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft. Scattered showers with isolated tstms. Some tstms may produce heavy rainfall. .TONIGHT...SW winds 5 to 10 kt. Seas 1 foot or less. Scattered showers. .WED...SW winds around 5 kt, becoming SE 10 to 15 kt with gusts up to 20 kt in the afternoon. Seas around 2 ft. .WED NIGHT...SW winds 10 to 15 kt, diminishing to around 5 kt after midnight. Seas around 2 ft. .THU...W winds around 5 kt, becoming SE in the afternoon. Seas 1 foot or less. A chance of showers. .THU NIGHT...S winds around 5 kt, becoming W around 5 kt after midnight. Seas 1 foot or less. A chance of showers. .FRI...W 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...S winds around 5 kt. Seas 1 foot or less. 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. $$ ANZ236-190600- Narragansett Bay- 116 PM EDT Tue Jul 18 2017 .THIS AFTERNOON...S winds 10 to 15 kt with gusts up to 20 kt. Seas 1 to 2 ft. Areas of fog. Isolated showers and tstms. Some tstms may produce heavy rainfall. Vsby 1 to 3 NM. .TONIGHT...S winds 5 to 10 kt, becoming SW after midnight. Seas around 2 ft. Areas of fog. Vsby 1 NM or less. .WED...SW winds around 5 kt, becoming S 10 to 15 kt with gusts up to 20 kt in the afternoon. Seas 2 to 3 ft. Areas of fog. Vsby 1 NM or less. .WED NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt, diminishing to around 5 kt after midnight. Seas 2 to 3 ft. Patchy fog. Vsby 1 to 3 NM. .THU...W winds 5 to 10 kt. Gusts up to 20 kt in the afternoon. Seas around 2 ft. Patchy fog. Vsby 1 to 3 NM. .THU NIGHT...SW winds 5 to 10 kt, becoming W after midnight. Seas 1 foot or less. .FRI...W winds 5 to 10 kt with gusts up to 20 kt. Seas around 2 ft. .FRI NIGHT...W winds around 5 kt. Seas 1 foot or less. .SAT...W winds around 5 kt. Seas 1 foot or less. A chance of showers. .SAT NIGHT...SW winds around 5 kt. Seas 1 foot or less. A chance of showers. Winds and seas higher in and near tstms. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ 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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