967 FZUS51 KBOX 041717 CWFBOX Coastal Waters Forecast National Weather Service Boston/Norton MA 117 PM EDT Thu Jul 4 2019 Coastal waters from the Merrimack River MA to Watch Hill RI out to 25 NM ANZ200-050600- 117 PM EDT Thu Jul 4 2019 .Synopsis for Massachusetts and Rhode Island coastal waters... High pres builds over the waters today then shifts east of the waters tonight and Fri. A cold front approaches from the west on Sat resulting in increasing SW winds and showers likely with the chance for tstms. The front moves through Sat night, followed by high pres building over New England Sun and Mon. 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. $$ ANZ250-050600- Coastal waters east of Ipswich Bay and the Stellwagen Bank National Marine Sanctuary- 117 PM EDT Thu Jul 4 2019 .THIS AFTERNOON...S winds around 5 kt. Seas 1 foot or less. .TONIGHT...S winds 5 to 10 kt. Seas around 2 ft. .FRI...S winds 5 to 10 kt. Seas 2 to 3 ft. .FRI NIGHT...S winds 5 to 10 kt. Seas 2 to 3 ft. A chance of showers. Vsby 1 to 3 NM. .SAT...SW winds 5 to 10 kt, increasing to 10 to 15 kt in the afternoon. Seas 2 to 4 ft. Showers likely with a chance of tstms. Some tstms may produce heavy rainfall. .SAT NIGHT...SW winds 5 to 10 kt, becoming NW with gusts up to 20 kt after midnight. Seas 2 to 4 ft. Showers likely with a chance of tstms. Some tstms may produce heavy rainfall. .SUN...NE winds 10 to 15 kt with gusts up to 25 kt. Seas 3 to 4 ft. A chance of showers. .SUN NIGHT...NW winds 5 to 10 kt. Seas 2 to 3 ft. .MON...NE winds 5 to 10 kt. Seas 2 to 4 ft. .MON NIGHT...SW winds 5 to 10 kt. Seas 2 to 4 ft. Winds and seas higher in and near tstms. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ251-050600- Massachusetts Bay and Ipswich Bay- 117 PM EDT Thu Jul 4 2019 .THIS AFTERNOON...SE winds around 5 kt. Seas 1 foot or less. .TONIGHT...S winds 5 to 10 kt. Seas 1 foot or less. .FRI...S winds 5 to 10 kt. Seas around 2 ft. .FRI NIGHT...S winds 5 to 10 kt. Seas 2 to 3 ft. A chance of showers. .SAT...SW winds 5 to 10 kt. Seas 2 to 3 ft. Showers likely with a chance of tstms. Some tstms may produce heavy rainfall. .SAT NIGHT...SW winds 5 to 10 kt, becoming NW with gusts up to 20 kt after midnight. Seas 2 to 3 ft. Showers likely with a chance of tstms. Some tstms may produce heavy rainfall. .SUN...NE winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. A chance of showers. .SUN NIGHT...W winds 5 to 10 kt. Seas 2 to 3 ft. .MON...NE winds 5 to 10 kt. Seas around 2 ft. .MON NIGHT...SW 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. $$ ANZ231-050600- Cape Cod Bay- 117 PM EDT Thu Jul 4 2019 .THIS AFTERNOON...S winds around 5 kt. Seas 1 foot or less. .TONIGHT...S winds around 5 kt. Seas 1 foot or less. .FRI...S winds 5 to 10 kt. Seas 1 foot or less. .FRI NIGHT...S winds 5 to 10 kt. Seas 1 foot or less. A chance of showers. Vsby 1 to 3 NM. .SAT...SW winds 5 to 10 kt, increasing to 10 to 15 kt in the afternoon. Seas around 2 ft. Showers likely with a chance of tstms. Some tstms may produce heavy rainfall. .SAT NIGHT...SW winds 5 to 10 kt, becoming W after midnight. Seas around 2 ft. Showers likely with a chance of tstms. Some tstms may produce heavy rainfall. Vsby 1 to 3 NM. .SUN...NE winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. A chance of showers. .SUN NIGHT...N winds 5 to 10 kt. Seas around 2 ft. .MON...NE winds around 5 kt. Seas around 2 ft. .MON NIGHT...SW winds 5 to 10 kt. Seas around 2 ft. Winds and seas higher in and near tstms. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ254-050600- Coastal waters from Provincetown MA to Chatham MA to Nantucket MA out 20 nm- 117 PM EDT Thu Jul 4 2019 .THIS AFTERNOON...SW winds 5 to 10 kt. Seas around 2 ft. .TONIGHT...S winds 5 to 10 kt. Seas around 2 ft. Patchy fog. Vsby 1 NM or less. .FRI...S winds 5 to 10 kt. Seas around 2 ft. Patchy fog. Vsby 1 to 3 NM. .FRI NIGHT...S winds 5 to 10 kt. Seas 2 to 3 ft. Patchy fog. A chance of showers. Vsby 1 to 3 NM. .SAT...SW winds 5 to 10 kt, increasing to 10 to 15 kt in the afternoon. Seas 2 to 4 ft. Patchy fog. A chance of showers. .SAT NIGHT...W winds 5 to 10 kt. Seas 2 to 4 ft. Showers likely with a chance of tstms. Some tstms may produce heavy rainfall. .SUN...N winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 5 ft. A chance of showers. .SUN NIGHT...NE winds 5 to 10 kt. Seas 3 to 5 ft. .MON...NE winds around 5 kt. Seas 2 to 4 ft. .MON 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. $$ ANZ255-050600- Coastal Waters extending out to 25 nm South of Marthas Vineyard and Nantucket- 117 PM EDT Thu Jul 4 2019 .THIS AFTERNOON...S winds 5 to 10 kt. Seas around 2 ft. .TONIGHT...S winds around 5 kt. Seas around 2 ft. Patchy fog. Vsby 1 NM or less. .FRI...SE winds around 5 kt. Seas around 2 ft. Patchy fog. Vsby 1 to 3 NM. .FRI NIGHT...S winds 5 to 10 kt. Seas 2 to 3 ft. Patchy fog. A chance of showers. .SAT...SW winds 5 to 10 kt. Seas 2 to 4 ft. Patchy fog. A chance of showers. Vsby 1 to 3 NM. .SAT NIGHT...SW winds 5 to 10 kt. Seas 3 to 4 ft. Patchy fog. Showers likely with a chance of tstms. Some tstms may produce heavy rainfall. .SUN...N winds 10 to 15 kt with gusts up to 25 kt. Seas 3 to 5 ft. A chance of showers. .SUN NIGHT...NE winds 5 to 10 kt. Seas 3 to 5 ft. .MON...NE winds 5 to 10 kt. Seas 2 to 4 ft. .MON NIGHT...S winds around 5 kt. Seas 2 to 4 ft. Winds and seas higher in and near tstms. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ256-050600- Coastal Waters from Montauk NY to Marthas Vineyard extending out to 20 nm South of Block Island- 117 PM EDT Thu Jul 4 2019 .THIS AFTERNOON...S winds 5 to 10 kt. Seas around 2 ft. .TONIGHT...S winds 5 to 10 kt, diminishing to around 5 kt after midnight. Seas around 2 ft. Patchy fog. Vsby 1 to 3 NM. .FRI...SE winds 5 to 10 kt. Seas around 2 ft. Patchy fog. Vsby 1 to 3 NM. .FRI NIGHT...S winds 5 to 10 kt. Seas 2 to 3 ft. A chance of showers. Vsby 1 to 3 NM. .SAT...SW winds 5 to 10 kt, increasing to 10 to 15 kt in the afternoon. Seas 3 to 4 ft. Patchy fog. A chance of showers. Vsby 1 to 3 NM. .SAT NIGHT...SW winds 10 to 15 kt, becoming W 5 to 10 kt after midnight. Seas around 4 ft. Patchy fog. Showers likely with a chance of tstms. Some tstms may produce heavy rainfall. .SUN...NE winds 10 to 15 kt with gusts up to 20 kt. Seas around 4 ft. A chance of showers. .SUN NIGHT...NE winds 10 to 15 kt. Seas 3 to 4 ft. .MON...E winds 5 to 10 kt. Seas 3 to 4 ft. .MON NIGHT...S winds 5 to 10 kt. Seas 3 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. $$ ANZ232-050600- Nantucket Sound- 117 PM EDT Thu Jul 4 2019 .THIS AFTERNOON...SW winds 5 to 10 kt. Seas 1 foot or less. .TONIGHT...S winds around 5 kt. Seas 1 foot or less. Patchy fog. Vsby 1 to 3 NM. .FRI...S winds 5 to 10 kt. Seas 1 foot or less. Patchy fog. Vsby 1 to 3 NM. .FRI NIGHT...S winds 5 to 10 kt. Seas around 2 ft. Patchy fog. A chance of showers. .SAT...SW winds 5 to 10 kt, increasing to 10 to 15 kt in the afternoon. Seas around 2 ft. Patchy fog. A chance of showers. .SAT NIGHT...W winds 5 to 10 kt. Seas 2 to 3 ft. Patchy fog. Showers likely with a chance of tstms. Some tstms may produce heavy rainfall. .SUN...NE winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 3 ft. A chance of showers. .SUN NIGHT...NE winds 5 to 10 kt. Seas 2 to 3 ft. .MON...NE winds 5 to 10 kt. Seas 2 to 3 ft. .MON NIGHT...SW winds around 5 kt. Seas 2 to 3 ft. Winds and seas higher in and near tstms. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ233-050600- Vineyard Sound- 117 PM EDT Thu Jul 4 2019 .THIS AFTERNOON...S winds 5 to 10 kt. Seas 1 foot or less. .TONIGHT...S winds around 5 kt. Seas 1 foot or less. Patchy fog. Vsby 1 to 3 NM. .FRI...S winds around 5 kt. Seas 1 foot or less. Patchy fog. Vsby 1 to 3 NM. .FRI NIGHT...S winds 5 to 10 kt. Seas 2 to 3 ft. Patchy fog. A chance of showers. .SAT...SW winds 5 to 10 kt. Seas 2 to 3 ft. Patchy fog. Showers likely. .SAT NIGHT...W winds 5 to 10 kt. Seas 2 to 3 ft. Patchy fog. Showers likely with a chance of tstms. Some tstms may produce heavy rainfall. .SUN...NE winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. A chance of showers. .SUN NIGHT...NE winds 5 to 10 kt. Seas around 2 ft. .MON...E winds around 5 kt. Seas 2 to 3 ft. .MON NIGHT...SW winds around 5 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. $$ ANZ234-050600- Buzzards Bay- 117 PM EDT Thu Jul 4 2019 .THIS AFTERNOON...S winds 5 to 10 kt. Seas 1 foot or less. .TONIGHT...SW winds around 5 kt. Seas 1 foot or less. Patchy fog. Vsby 1 to 3 NM. .FRI...S winds around 5 kt. Seas 1 foot or less. Patchy fog. Vsby 1 to 3 NM. .FRI NIGHT...S winds around 5 kt. Seas around 2 ft. Patchy fog. A chance of showers. .SAT...SW winds 5 to 10 kt. Seas 2 to 3 ft. Showers likely. .SAT NIGHT...W winds 5 to 10 kt. Seas 2 to 3 ft. Patchy fog. Showers likely with a chance of tstms. Some tstms may produce heavy rainfall. .SUN...NE winds 5 to 10 kt with gusts up to 20 kt. Seas 2 to 3 ft. A chance of showers. .SUN NIGHT...NE winds 5 to 10 kt. Seas 2 to 3 ft. .MON...E winds around 5 kt. Seas 2 to 3 ft. .MON NIGHT...SW winds around 5 kt. Seas 2 to 3 ft. Winds and seas higher in and near tstms. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ235-050600- Rhode Island Sound- 117 PM EDT Thu Jul 4 2019 .THIS AFTERNOON...S winds 5 to 10 kt. Seas around 2 ft. .TONIGHT...S winds around 5 kt. Seas around 2 ft. Patchy fog. Vsby 1 to 3 NM. .FRI...S winds around 5 kt. Seas around 2 ft. Patchy fog. Vsby 1 to 3 NM. .FRI NIGHT...S winds 5 to 10 kt. Seas 2 to 3 ft. A chance of showers. .SAT...SW winds 5 to 10 kt. Seas 3 to 4 ft. Patchy fog. A chance of showers. .SAT NIGHT...W winds 5 to 10 kt. Seas 2 to 4 ft. Patchy fog. Showers likely with a chance of tstms. Some tstms may produce heavy rainfall. .SUN...NE winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 4 ft. A chance of showers. .SUN NIGHT...NE winds 5 to 10 kt. Seas around 3 ft. .MON...E winds around 5 kt. Seas 2 to 3 ft. .MON NIGHT...SW winds around 5 kt. Seas around 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. $$ ANZ237-050600- Block Island Sound- 117 PM EDT Thu Jul 4 2019 .THIS AFTERNOON...S winds 5 to 10 kt. Seas around 2 ft. .TONIGHT...S winds around 5 kt. Seas around 2 ft. Patchy fog. Vsby 1 to 3 NM. .FRI...SE winds around 5 kt. Seas around 2 ft. Patchy fog. Vsby 1 to 3 NM. .FRI NIGHT...S winds 5 to 10 kt. Seas 2 to 3 ft. A chance of showers. Vsby 1 to 3 NM. .SAT...SW winds 5 to 10 kt. Seas 2 to 3 ft. Patchy fog. A chance of showers. Vsby 1 to 3 NM. .SAT NIGHT...W winds 5 to 10 kt. Seas 2 to 4 ft. Patchy fog. Showers likely with a chance of tstms. Some tstms may produce heavy rainfall. .SUN...NE winds 5 to 10 kt with gusts up to 20 kt. Seas around 3 ft. A chance of showers. .SUN NIGHT...NE winds 5 to 10 kt. Seas 2 to 3 ft. .MON...E winds 5 to 10 kt. Seas around 3 ft. .MON NIGHT...SW winds 5 to 10 kt. Seas 2 to 3 ft. Winds and seas higher in and near tstms. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ230-050600- Boston Harbor- 117 PM EDT Thu Jul 4 2019 .THIS AFTERNOON...SE winds around 5 kt. Waves 1 foot or less. .TONIGHT...S winds around 5 kt. Waves 1 foot or less. .FRI...S winds 5 to 10 kt. Waves 1 foot or less. .FRI NIGHT...SW winds 5 to 10 kt. Waves 1 foot or less. A chance of showers. .SAT...SW winds 5 to 10 kt. Waves 1 foot or less. Showers likely with a chance of tstms. Some tstms may produce heavy rainfall. .SAT NIGHT...SW winds around 5 kt, becoming NW after midnight. Waves 1 foot or less. Showers likely with a chance of tstms. Some tstms may produce heavy rainfall. .SUN...NE winds 5 to 10 kt with gusts up to 20 kt. Waves 1 foot or less. A chance of showers. .SUN NIGHT...SW winds around 5 kt. Waves 1 foot or less. .MON...NE winds around 5 kt. Waves 1 foot or less. .MON 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. $$ ANZ236-050600- Narragansett Bay- 117 PM EDT Thu Jul 4 2019 .THIS AFTERNOON...S winds 5 to 10 kt. Waves around 2 ft. .TONIGHT...S winds 5 to 10 kt, diminishing to around 5 kt after midnight. Waves around 2 ft. Patchy fog. Vsby 1 to 3 NM. .FRI...S winds around 5 kt, increasing to 5 to 10 kt in the afternoon. Waves around 2 ft. Patchy fog. Vsby 1 to 3 NM. .FRI NIGHT...S winds 5 to 10 kt. Waves 2 to 3 ft. A chance of showers. .SAT...SW winds 5 to 10 kt. Waves 2 to 3 ft. Showers likely with a chance of tstms. Some tstms may produce heavy rainfall. .SAT NIGHT...W winds 5 to 10 kt. Waves 2 to 3 ft. Patchy fog. Showers likely with a chance of tstms. Some tstms may produce heavy rainfall. .SUN...NE winds 5 to 10 kt with gusts up to 20 kt. Waves 2 to 3 ft. A chance of showers. .SUN NIGHT...NE winds 5 to 10 kt. Waves 2 to 3 ft. .MON...E winds around 5 kt. Waves 2 to 3 ft. .MON NIGHT...SW winds around 5 kt. Waves 2 to 3 ft. Winds and waves higher in and near tstms. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ For the latest updates...please visit our webpage at www.weather.gov/boston You can follow us on Facebook at www.facebook.com/us.nationalweatherservice.boston.gov You can follow us on Twitter at @NWSBoston