Coastal Waters Forecast
Issued by NWS Boston, MA

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000 FZUS51 KBOX 201116 CWFBOX Coastal Waters Forecast National Weather Service Taunton MA 716 AM EDT Thu Jul 20 2017 COASTAL WATERS FROM THE MERRIMACK RIVER MA TO WATCH HILL RI OUT TO 25 NM ANZ200-210000- 716 AM EDT Thu Jul 20 2017 .Synopsis for Massachusetts and Rhode Island coastal waters... A weak cold front will cross the waters late tonight into Fri before washing out. High pressure will move overhead on Saturday. Approaching warm front on Sunday with a coastal low pressure system moving through the waters on Monday and Tuesday. 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. $$ ANZ250-210000- Coastal waters east of Ipswich Bay and the Stellwagen Bank National Marine Sanctuary- 716 AM EDT Thu Jul 20 2017 .TODAY...W winds around 5 kt, becoming S this afternoon. Seas 2 to 3 ft. .TONIGHT...SW winds 5 to 10 kt. Seas 2 to 3 ft. A chance of showers and tstms. .FRI...SW winds 5 to 10 kt. Seas 2 to 3 ft. .FRI NIGHT...NW winds 5 to 10 kt. Seas 2 to 3 ft. .SAT...W winds around 5 kt, becoming S with gusts up to 20 kt in the afternoon. Seas around 2 ft. .SAT NIGHT...SW winds 5 to 10 kt with gusts up to 20 kt, becoming N after midnight. Seas 2 to 3 ft. A chance of showers. .SUN...E winds 5 to 10 kt. Seas 2 to 3 ft. A chance of showers. .SUN NIGHT...E winds 5 to 10 kt. Seas around 2 ft. Showers likely. .MON...NE winds 5 to 10 kt. Seas 2 to 3 ft. A chance of showers. .MON NIGHT...NE winds 5 to 10 kt. Seas 2 to 3 ft. A chance of showers. Winds and seas higher in and near tstms. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ251-210000- Massachusetts Bay and Ipswich Bay- 716 AM EDT Thu Jul 20 2017 .TODAY...W winds around 5 kt, becoming SE this afternoon. Seas 1 to 2 ft. Isolated showers and tstms this afternoon. .TONIGHT...SW winds 5 to 10 kt. Seas around 2 ft. A chance of showers and tstms. .FRI...SW winds 5 to 10 kt. Seas 1 to 2 ft. .FRI NIGHT...NW winds 5 to 10 kt. Seas around 2 ft. .SAT...W winds around 5 kt, becoming SW in the afternoon. Seas 1 to 2 ft. .SAT NIGHT...SW winds 5 to 10 kt, becoming N after midnight. Seas around 2 ft. A chance of showers. .SUN...E winds around 5 kt. Seas around 2 ft. A chance of showers. .SUN NIGHT...E winds around 5 kt. Seas 1 foot or less. Showers likely. .MON...NE winds 5 to 10 kt. Seas 1 foot or less. A chance of showers. .MON NIGHT...NE 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. $$ ANZ231-210000- Cape Cod Bay- 716 AM EDT Thu Jul 20 2017 .TODAY...W winds around 5 kt, becoming S with gusts up to 20 kt this afternoon. Seas 1 to 2 ft. Isolated showers and tstms this afternoon. .TONIGHT...SW winds 5 to 10 kt. Gusts up to 20 kt in the evening. Seas 1 to 2 ft. A chance of showers and tstms. Vsby 1 to 3 NM. .FRI...SW winds 5 to 10 kt. Seas 1 to 2 ft. .FRI NIGHT...NW winds 5 to 10 kt. Seas 1 foot or less. .SAT...W winds around 5 kt, becoming SW with gusts up to 20 kt in the afternoon. Seas around 2 ft. .SAT NIGHT...SW winds 5 to 10 kt with gusts up to 20 kt, becoming NW after midnight. Seas around 2 ft. A chance of showers. .SUN...E winds around 5 kt. Seas around 2 ft. A chance of showers. .SUN NIGHT...SE winds around 5 kt. Seas 1 foot or less. Showers likely. .MON...NE winds around 5 kt. Seas 1 foot or less. A chance of showers. .MON NIGHT...NE winds 5 to 10 kt. Seas 1 foot or less. A chance of showers. Winds and seas higher in and near tstms. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ254-210000- Coastal waters from Provincetown MA to Chatham MA to Nantucket MA out 20 nm- 716 AM EDT Thu Jul 20 2017 .TODAY...W winds around 5 kt, becoming SW this afternoon. Seas 2 to 3 ft. Areas of fog this morning with vsby 1 NM or less. .TONIGHT...SW winds 5 to 10 kt, increasing to 10 to 15 kt after midnight. Seas 2 to 4 ft. Areas of fog. A chance of showers and tstms. Vsby 1 NM or less. .FRI...SW winds 5 to 10 kt. Seas 2 to 4 ft. Areas of fog. Vsby 1 NM or less. .FRI NIGHT...W winds 5 to 10 kt, becoming NW after midnight. Seas 2 to 4 ft. .SAT...NW winds around 5 kt, becoming SW with gusts up to 20 kt in the afternoon. Seas 2 to 3 ft. .SAT NIGHT...SW winds 5 to 10 kt. Seas 2 to 4 ft. A chance of showers. .SUN...SE winds around 5 kt. Seas 2 to 4 ft. A chance of showers. .SUN NIGHT...SE winds around 5 kt. Seas 2 to 3 ft. Showers likely. .MON...N winds around 5 kt. Seas 2 to 4 ft. A chance of showers. .MON NIGHT...NE winds 5 to 10 kt. Seas 2 to 4 ft. 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. $$ ANZ255-210000- Coastal Waters extending out to 25 nm South of Marthas Vineyard and Nantucket- 716 AM EDT Thu Jul 20 2017 .TODAY...SW winds 5 to 10 kt. Seas 2 to 3 ft. Areas of fog. Vsby 1 NM or less. .TONIGHT...SW winds 10 to 15 kt. Seas 2 to 4 ft. Areas of fog. A chance of showers and tstms. Vsby 1 NM or less. .FRI...SW winds 5 to 10 kt. Gusts up to 20 kt in the afternoon. Seas 2 to 4 ft. Areas of fog. Vsby 1 NM or less. .FRI NIGHT...W winds 5 to 10 kt with gusts up to 20 kt, becoming NW after midnight. Seas 2 to 4 ft. .SAT...NW winds around 5 kt, becoming SW in the afternoon. Seas around 3 ft. .SAT NIGHT...SW winds 5 to 10 kt. Seas 2 to 4 ft. A chance of showers. .SUN...S winds around 5 kt. Seas 2 to 3 ft. Showers likely. .SUN NIGHT...S winds 5 to 10 kt. Seas 2 to 4 ft. Showers likely. .MON...W winds 5 to 10 kt. Seas 3 to 5 ft. A chance of showers. .MON NIGHT...SE winds 5 to 10 kt. Seas 3 to 5 ft. A chance of showers. Vsby 1 to 3 NM. Winds and seas higher in and near tstms. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ256-210000- Coastal Waters from Montauk NY to Marthas Vineyard extending out to 20 nm South of Block Island- 716 AM EDT Thu Jul 20 2017 .TODAY...SW winds 5 to 10 kt. Seas around 3 ft. Patchy fog this morning with vsby 1 to 3 NM. .TONIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 4 ft. Areas of fog. A chance of showers and tstms. Vsby 1 to 3 NM. .FRI...SW winds 5 to 10 kt. Gusts up to 20 kt in the afternoon. Seas 3 to 4 ft. .FRI NIGHT...W winds 10 to 15 kt with gusts up to 20 kt, becoming NW 5 to 10 kt after midnight. Seas 2 to 4 ft. .SAT...NW winds 5 to 10 kt, becoming SW in the afternoon. Seas around 3 ft. .SAT NIGHT...SW winds 5 to 10 kt. Seas 3 to 4 ft. A chance of showers. .SUN...SE winds 5 to 10 kt. Seas 2 to 3 ft. Showers likely. .SUN NIGHT...S winds 5 to 10 kt. Seas 2 to 4 ft. Showers likely. .MON...W winds 5 to 10 kt. Seas 3 to 5 ft. A chance of showers. .MON NIGHT...SE winds 5 to 10 kt. Seas 3 to 5 ft. Showers likely. Vsby 1 to 3 NM. 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. $$ ANZ232-210000- Nantucket Sound- 716 AM EDT Thu Jul 20 2017 .TODAY...W winds around 5 kt, becoming SW this afternoon. Seas 1 to 2 ft. Patchy fog this morning with vsby 1 NM or less. .TONIGHT...SW winds 5 to 10 kt, increasing to 10 to 15 kt after midnight. Seas 2 to 3 ft. Areas of fog. A chance of showers and tstms. Vsby 1 NM or less. .FRI...SW winds 5 to 10 kt. Gusts up to 20 kt in the afternoon. Seas 2 to 3 ft. .FRI NIGHT...W winds 5 to 10 kt with gusts up to 20 kt, becoming NW after midnight. Seas 2 to 3 ft. .SAT...NW winds around 5 kt, becoming SW with gusts up to 20 kt in the afternoon. Seas 1 to 2 ft. .SAT NIGHT...SW winds 5 to 10 kt. Seas around 2 ft. A chance of showers. .SUN...SE winds around 5 kt. Seas 1 foot or less. Showers likely. .SUN NIGHT...SE winds around 5 kt. Seas 1 foot or less. Showers likely. .MON...NW winds 5 to 10 kt. Seas around 2 ft. A chance of showers. .MON NIGHT...NE winds 5 to 10 kt. Seas 2 to 3 ft. A chance of showers. Vsby 1 to 3 NM. Winds and seas higher in and near tstms. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ233-210000- Vineyard Sound- 716 AM EDT Thu Jul 20 2017 .TODAY...SW winds 5 to 10 kt. Gusts up to 20 kt this afternoon. Seas 2 to 3 ft. Patchy fog this morning with vsby 1 to 3 NM. .TONIGHT...SW winds 10 to 15 kt, diminishing to 5 to 10 kt after midnight. Seas around 2 ft. A chance of showers and tstms. .FRI...SW winds 5 to 10 kt. Gusts up to 20 kt in the afternoon. Seas 2 to 3 ft. .FRI NIGHT...NW winds 5 to 10 kt. Gusts up to 20 kt in the evening. Seas 2 to 3 ft. .SAT...W winds around 5 kt, becoming SW with gusts up to 20 kt in the afternoon. Seas 1 to 2 ft. .SAT NIGHT...W winds 5 to 10 kt. Seas 2 to 3 ft. A chance of showers. .SUN...SE winds 5 to 10 kt. Seas 1 foot or less. Showers likely. .SUN NIGHT...SE winds around 5 kt. Seas around 2 ft. Showers likely. .MON...W winds around 5 kt. Seas 2 to 3 ft. A chance of showers. .MON NIGHT...E winds 5 to 10 kt. Seas 2 to 3 ft. A chance of showers. Vsby 1 to 3 NM. 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. $$ ANZ234-210000- Buzzards Bay- 716 AM EDT Thu Jul 20 2017 .TODAY...SW winds around 5 kt, increasing to 10 to 15 kt with gusts up to 20 kt this afternoon. Seas around 2 ft. Patchy fog this morning. Isolated showers and tstms this afternoon. Vsby 1 to 3 NM this morning. .TONIGHT...SW winds 5 to 10 kt. Gusts up to 20 kt in the evening. Seas 1 to 2 ft. Showers and tstms likely. .FRI...SW winds 5 to 10 kt. Gusts up to 20 kt in the afternoon. Seas around 2 ft. .FRI NIGHT...NW winds 5 to 10 kt. Gusts up to 20 kt in the evening. Seas 2 to 3 ft. .SAT...W winds around 5 kt, becoming SW with gusts up to 20 kt in the afternoon. Seas around 2 ft. .SAT NIGHT...SW winds 5 to 10 kt, becoming NW after midnight. Seas 2 to 3 ft. A chance of showers. .SUN...E winds 5 to 10 kt. Seas 1 foot or less. Showers likely. .SUN NIGHT...SE winds around 5 kt. Seas 1 foot or less. Showers likely. .MON...NW winds around 5 kt. Seas around 2 ft. A chance of showers. .MON NIGHT...E winds around 5 kt. Seas around 2 ft. A chance of showers. Vsby 1 to 3 NM. Winds and seas higher in and near tstms. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ235-210000- Rhode Island Sound- 716 AM EDT Thu Jul 20 2017 .TODAY...W winds around 5 kt, becoming SW 10 to 15 kt with gusts up to 20 kt this afternoon. Seas 2 to 3 ft. Patchy fog this morning with vsby 1 to 3 NM. .TONIGHT...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. A chance of showers and tstms. Vsby 1 to 3 NM. .FRI...W winds 5 to 10 kt, becoming SW 10 to 15 kt with gusts up to 20 kt in the afternoon. Seas 2 to 4 ft. .FRI NIGHT...NW winds 5 to 10 kt. Gusts up to 20 kt in the evening. Seas 2 to 4 ft. .SAT...W winds 5 to 10 kt, becoming SW with gusts up to 20 kt in the afternoon. Seas 2 to 3 ft. .SAT NIGHT...W winds 5 to 10 kt. Seas 2 to 4 ft. A chance of showers. .SUN...E winds around 5 kt. Seas 2 to 3 ft. Showers likely. .SUN NIGHT...SE winds 5 to 10 kt. Seas 2 to 3 ft. Showers likely. .MON...W winds 5 to 10 kt. Seas 2 to 4 ft. A chance of showers. .MON NIGHT...E winds 5 to 10 kt. Seas 2 to 4 ft. Showers likely. Vsby 1 to 3 NM. 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. $$ ANZ237-210000- Block Island Sound- 716 AM EDT Thu Jul 20 2017 .TODAY...W winds around 5 kt, becoming SW with gusts up to 20 kt this afternoon. Seas 2 to 3 ft. Patchy fog this morning. .TONIGHT...SW winds 10 to 15 kt, diminishing to 5 to 10 kt after midnight. Seas 2 to 4 ft. A chance of showers and tstms. Vsby 1 to 3 NM. .FRI...SW winds 5 to 10 kt. Gusts up to 20 kt in the afternoon. Seas 2 to 3 ft. .FRI NIGHT...NW winds 5 to 10 kt. Seas 2 to 3 ft. .SAT...W winds around 5 kt, becoming SW with gusts up to 20 kt in the afternoon. Seas 2 to 3 ft. .SAT NIGHT...SW winds 5 to 10 kt. Seas 2 to 4 ft. A chance of showers. .SUN...SE winds 5 to 10 kt. Seas 2 to 3 ft. Showers likely. .SUN NIGHT...SE winds around 5 kt. Seas 2 to 3 ft. Showers likely. .MON...W winds around 5 kt. Seas 2 to 4 ft. A chance of showers. .MON NIGHT...SE winds 5 to 10 kt. Seas 2 to 4 ft. Showers likely. Vsby 1 to 3 NM. Winds and seas higher in and near tstms. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ230-210000- Boston Harbor- 716 AM EDT Thu Jul 20 2017 .TODAY...W winds around 5 kt, becoming SE this afternoon. Seas 1 foot or less. Isolated showers and tstms this afternoon. .TONIGHT...SW winds 5 to 10 kt. Seas 1 foot or less. A chance of showers and tstms. .FRI...W winds 5 to 10 kt. Gusts up to 20 kt in the afternoon. Seas 1 foot or less. .FRI NIGHT...NW winds 5 to 10 kt. Seas 1 foot or less. .SAT...W winds around 5 kt. Seas 1 foot or less. .SAT NIGHT...SW winds around 5 kt, becoming N around 5 kt after midnight. Seas 1 foot or less. A chance of showers. .SUN...E winds around 5 kt. Seas 1 foot or less. A chance of showers. .SUN NIGHT...E winds around 5 kt. Seas 1 foot or less. Showers likely. .MON...NE winds around 5 kt. Seas 1 foot or less. A chance of showers. .MON NIGHT...NE 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. $$ ANZ236-210000- Narragansett Bay- 716 AM EDT Thu Jul 20 2017 .TODAY...SW winds around 5 kt, increasing to 10 to 15 kt with gusts up to 20 kt this afternoon. Seas around 2 ft. Patchy fog this morning. Isolated showers and tstms this afternoon. Vsby 1 to 3 NM this morning. .TONIGHT...SW winds 5 to 10 kt. Gusts up to 20 kt in the evening. Seas around 2 ft. A chance of showers and tstms. Vsby 1 to 3 NM. .FRI...SW winds 5 to 10 kt. Gusts up to 20 kt in the afternoon. Seas 2 to 3 ft. .FRI NIGHT...NW winds 5 to 10 kt. Seas 1 to 2 ft. .SAT...W winds around 5 kt, becoming SW with gusts up to 20 kt in the afternoon. Seas 1 to 2 ft. .SAT NIGHT...SW winds 5 to 10 kt, becoming NW after midnight. Seas 1 to 2 ft. A chance of showers. .SUN...E winds around 5 kt. Seas 1 foot or less. Showers likely. .SUN NIGHT...SE winds around 5 kt. Seas 1 foot or less. Showers likely. .MON...NW winds around 5 kt. Seas 1 foot or less. A chance of showers. .MON NIGHT...E winds around 5 kt. Seas 1 foot or less. A chance of showers. Vsby 1 to 3 NM. Winds and seas higher in and near tstms. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ 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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