Coastal Waters Forecast
Issued by NWS Boston, MA

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000 FZUS51 KBOX 220016 CWFBOX Coastal Waters Forecast National Weather Service Taunton MA 716 PM EST Wed Feb 21 2018 Coastal waters from the Merrimack River MA to Watch Hill RI out to 25 NM ANZ200-221300- 716 PM EST Wed Feb 21 2018 .Synopsis for Massachusetts and Rhode Island coastal waters... A cold front will cross the waters this evening. Strong high pressure builds to the north Thursday as a wave of low pres tracks to the south bringing rain. The high pressure moves east of Nova Scotia Friday with a series of frontal system sweeping the waters through the weekend. A more quiet pattern into the following week. 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. $$ ANZ250-221300- Coastal waters east of Ipswich Bay and the Stellwagen Bank National Marine Sanctuary- 716 PM EST Wed Feb 21 2018 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 1 AM EST THURSDAY... .TONIGHT...W winds 10 to 15 kt, becoming N 15 to 20 kt after midnight. Gusts up to 25 kt. Seas 3 to 5 ft. Areas of fog this evening with vsby 1 NM or less. .THU...NE winds 10 to 15 kt. Gusts up to 20 kt in the morning. Seas 3 to 5 ft. Rain with snow likely. Vsby 1 NM or less. .THU NIGHT...NE winds 10 to 15 kt. Seas 2 to 3 ft. A chance of rain and snow. .FRI...SE winds 10 to 15 kt. Gusts up to 20 kt in the afternoon. Seas 2 to 3 ft. Rain. .FRI NIGHT...S winds 10 to 15 kt, becoming W after midnight. Gusts up to 20 kt. Seas around 3 ft. Rain likely. .SAT...W winds 10 to 15 kt with gusts up to 20 kt, becoming NW 5 to 10 kt in the afternoon. Seas 2 to 3 ft. .SAT NIGHT...N winds 5 to 10 kt, becoming NE 10 to 15 kt with gusts up to 20 kt after midnight. Seas 2 to 4 ft. Rain likely. .SUN...E winds 20 to 25 kt with gusts up to 35 kt. Seas 6 to 9 ft. Rain. .SUN NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 5 to 8 ft. Rain likely. .MON...W winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 5 ft. .MON NIGHT...NW winds around 15 kt with gusts up to 20 kt. Seas 3 to 5 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ251-221300- Massachusetts Bay and Ipswich Bay- 716 PM EST Wed Feb 21 2018 .TONIGHT...NW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Isolated showers this evening. .THU...NE winds 10 to 15 kt. Seas 2 to 3 ft. Rain with snow likely. Vsby 1 NM or less. .THU NIGHT...NE winds 5 to 10 kt. Seas around 2 ft. A chance of snow. .FRI...E winds 5 to 10 kt, becoming SE 10 to 15 kt with gusts up to 20 kt in the afternoon. Seas 2 to 3 ft. Rain. .FRI NIGHT...S winds 5 to 10 kt with gusts up to 20 kt, becoming W 10 to 15 kt after midnight. Seas 2 to 3 ft. Rain likely. .SAT...W winds 10 to 15 kt, becoming NW 5 to 10 kt in the afternoon. Seas around 2 ft. .SAT NIGHT...N winds 5 to 10 kt, becoming NE 10 to 15 kt with gusts up to 20 kt after midnight. Seas 2 to 3 ft. Rain likely. .SUN...E winds 10 to 15 kt with gusts up to 30 kt. Seas 4 to 6 ft. Rain. .SUN NIGHT...NW winds 5 to 10 kt. Seas 4 to 6 ft. Rain likely. .MON...W winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. .MON NIGHT...NW winds 10 to 15 kt with gusts up to 20 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. $$ ANZ231-221300- Cape Cod Bay- 716 PM EST Wed Feb 21 2018 .TONIGHT...W winds 10 to 15 kt, becoming N after midnight. Gusts up to 20 kt. Seas 2 to 3 ft. Areas of fog this evening. Isolated showers this evening with vsby 1 NM or less. .THU...NE winds 10 to 15 kt. Gusts up to 20 kt in the morning. Seas 2 to 3 ft. Rain. .THU NIGHT...NE winds around 10 kt. Seas around 2 ft. Rain likely with a chance of snow. .FRI...SE winds 5 to 10 kt. Seas 1 foot or less. Rain. .FRI NIGHT...S winds 5 to 10 kt with gusts up to 20 kt, becoming W after midnight. Seas around 2 ft. Rain likely. .SAT...NW winds 5 to 10 kt. Seas around 2 ft. .SAT NIGHT...NE winds 5 to 10 kt, increasing to 10 to 15 kt with gusts up to 25 kt after midnight. Seas around 2 ft. Rain likely. .SUN...E winds 15 to 20 kt with gusts up to 30 kt. Seas 2 to 4 ft. Rain. .SUN NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Rain likely. .MON...W winds 10 to 15 kt. Seas around 2 ft. .MON NIGHT...NW winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 3 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ254-221300- Coastal waters from Provincetown MA to Chatham MA to Nantucket MA out 20 nm- 716 PM EST Wed Feb 21 2018 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 1 AM EST THURSDAY... .TONIGHT...W winds 15 to 20 kt, becoming N 10 to 15 kt after midnight. Gusts up to 25 kt. Seas 3 to 5 ft. Isolated showers. Areas of dense fog this evening. Vsby 1 NM or less, increasing to 1 to 3 NM after midnight. .THU...NE winds 15 to 20 kt. Seas 3 to 5 ft. Rain. .THU NIGHT...NE winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. Rain likely. .FRI...E winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. Rain. .FRI NIGHT...SE winds 10 to 15 kt, becoming W after midnight. Gusts up to 20 kt. Seas 2 to 4 ft. Rain likely. .SAT...W winds 10 to 15 kt, becoming NW 5 to 10 kt in the afternoon. Seas 2 to 4 ft. .SAT NIGHT...NE winds 10 to 15 kt. Gusts up to 25 kt after midnight. Seas 2 to 4 ft. Rain likely. .SUN...SE winds 20 to 25 kt with gusts up to 35 kt. Seas 5 to 8 ft. Rain. .SUN NIGHT...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 5 to 8 ft. Rain likely. .MON...W winds 10 to 15 kt with gusts up to 20 kt. Seas 4 to 6 ft. .MON NIGHT...NW winds around 15 kt with gusts up to 25 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. $$ ANZ255-221300- Coastal Waters extending out to 25 nm South of Marthas Vineyard and Nantucket- 716 PM EST Wed Feb 21 2018 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 1 AM EST THURSDAY... .TONIGHT...W winds 10 to 15 kt, becoming N after midnight. Gusts up to 20 kt. Seas 4 to 6 ft. Areas of dense fog this evening, then areas of fog after midnight. Isolated showers this evening, then scattered showers after midnight. Vsby 1 NM or less, increasing to 1 to 3 NM after midnight. .THU...NE winds 10 to 15 kt, increasing to 15 to 20 kt in the afternoon. Gusts up to 25 kt. Seas 3 to 4 ft. Rain. .THU NIGHT...NE winds 15 to 20 kt, diminishing to 10 to 15 kt after midnight. Seas 2 to 4 ft. Rain likely. .FRI...E winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. Rain. .FRI NIGHT...SE winds 10 to 15 kt, becoming W with gusts up to 20 kt after midnight. Seas 2 to 4 ft. Rain likely. .SAT...W winds 10 to 15 kt, becoming NW 5 to 10 kt in the afternoon. Seas 2 to 4 ft. .SAT NIGHT...NE winds 5 to 10 kt, increasing to 10 to 15 kt with gusts up to 25 kt after midnight. Seas 3 to 5 ft. Rain likely. .SUN...SE winds 15 to 20 kt with gusts up to 30 kt. Seas 5 to 8 ft. Rain. .SUN NIGHT...W winds 15 to 20 kt. Seas 5 to 8 ft. A chance of rain. .MON...W winds 10 to 15 kt with gusts up to 20 kt. Seas 4 to 7 ft. .MON NIGHT...NW winds 15 to 20 kt with gusts up to 25 kt. Seas 4 to 6 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ256-221300- Coastal Waters from Montauk NY to Marthas Vineyard extending out to 20 nm South of Block Island- 716 PM EST Wed Feb 21 2018 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 1 AM EST THURSDAY... .TONIGHT...W winds 10 to 15 kt with gusts up to 20 kt, becoming N after midnight. Seas 4 to 6 ft. Areas of fog. Scattered showers. Vsby 1 NM or less, increasing to 1 to 3 NM after midnight. .THU...NE winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to 5 ft. Rain. .THU NIGHT...NE winds 15 to 20 kt, diminishing to 10 to 15 kt after midnight. Seas 3 to 5 ft. Rain likely. .FRI...E winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. Rain. .FRI NIGHT...S winds 10 to 15 kt, becoming W with gusts up to 20 kt after midnight. Seas 2 to 4 ft. Rain likely. .SAT...W winds 10 to 15 kt, diminishing to 5 to 10 kt in the afternoon. Seas 2 to 3 ft. .SAT NIGHT...NE winds 5 to 10 kt, increasing to 15 to 20 kt with gusts up to 25 kt after midnight. Seas 3 to 5 ft. Rain likely. .SUN...SE winds 15 to 20 kt with gusts up to 30 kt. Seas 4 to 7 ft. Rain. .SUN NIGHT...W winds 15 to 20 kt. Seas 5 to 8 ft. A chance of rain. .MON...W winds 10 to 15 kt with gusts up to 20 kt. Seas 4 to 7 ft. .MON NIGHT...NW winds 10 to 15 kt with gusts up to 25 kt. Seas 4 to 6 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. $$ ANZ232-221300- Nantucket Sound- 716 PM EST Wed Feb 21 2018 .TONIGHT...W winds 10 to 15 kt, becoming N after midnight. Gusts up to 20 kt. Seas 2 to 3 ft. Isolated showers. Areas of dense fog this evening with vsby 1 NM or less. .THU...NE winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Rain. .THU NIGHT...NE winds 10 to 15 kt. Seas 2 to 3 ft. Rain likely. .FRI...E winds 10 to 15 kt, becoming SE 5 to 10 kt in the afternoon. Seas 2 to 3 ft. Rain. .FRI NIGHT...S winds 5 to 10 kt, becoming W after midnight. Seas 2 to 3 ft. Rain likely. .SAT...NW winds 5 to 10 kt. Seas around 2 ft. .SAT NIGHT...NE winds 5 to 10 kt, increasing to 10 to 15 kt with gusts up to 20 kt after midnight. Seas 2 to 3 ft. Rain likely. .SUN...SE winds 15 to 20 kt with gusts up to 30 kt. Seas 3 to 5 ft. Rain. .SUN NIGHT...W winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. A chance of rain. .MON...W winds 10 to 15 kt. Seas 2 to 3 ft. .MON NIGHT...NW winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 3 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ233-221300- Vineyard Sound- 716 PM EST Wed Feb 21 2018 .TONIGHT...W winds 10 to 15 kt, becoming N after midnight. Seas 2 to 3 ft. Scattered showers. Areas of fog this evening with vsby 1 NM or less. .THU...NE winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Rain. .THU NIGHT...NE winds 10 to 15 kt. Gusts up to 20 kt in the evening. Seas around 2 ft. Rain likely. .FRI...E winds 5 to 10 kt. Gusts up to 20 kt in the morning. Seas 1 foot or less. Rain. .FRI NIGHT...S winds 5 to 10 kt, becoming W 10 to 15 kt after midnight. Seas around 2 ft. Rain likely. .SAT...W winds 5 to 10 kt. Seas around 2 ft. .SAT NIGHT...NE winds 5 to 10 kt, increasing to 10 to 15 kt with gusts up to 20 kt after midnight. Seas 2 to 3 ft. Rain likely. .SUN...SE winds around 15 kt with gusts up to 25 kt. Seas 2 to 4 ft. Rain. .SUN NIGHT...W winds 10 to 15 kt. Seas 2 to 4 ft. A chance of rain. .MON...W winds around 10 kt. Seas 2 to 4 ft. .MON NIGHT...NW winds 10 to 15 kt with gusts up to 20 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. $$ ANZ234-221300- Buzzards Bay- 716 PM EST Wed Feb 21 2018 .TONIGHT...NW winds 10 to 15 kt, becoming N with gusts up to 20 kt after midnight. Seas 2 to 3 ft. Scattered showers, mainly this evening. Areas of fog this evening with vsby 1 NM or less. .THU...NE winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft. Rain. .THU NIGHT...NE winds 10 to 15 kt, diminishing to 5 to 10 kt after midnight. Seas 1 foot or less. Rain likely. .FRI...E winds 5 to 10 kt. Seas 1 foot or less. Rain. .FRI NIGHT...S winds 5 to 10 kt, becoming W after midnight. Seas 1 foot or less. A chance of rain. .SAT...W winds 5 to 10 kt. Seas 1 foot or less. .SAT NIGHT...NE winds 5 to 10 kt, increasing to 10 to 15 kt with gusts up to 20 kt after midnight. Seas around 2 ft. Rain likely. .SUN...SE winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 3 ft. Rain. .SUN NIGHT...W winds 10 to 15 kt. Seas 2 to 3 ft. A chance of rain. .MON...W winds 5 to 10 kt. Seas 2 to 3 ft. .MON NIGHT...NW winds around 10 kt with gusts up to 20 kt. Seas 2 to 3 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ235-221300- Rhode Island Sound- 716 PM EST Wed Feb 21 2018 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 9 PM EST THIS EVENING... .TONIGHT...W winds 10 to 15 kt, becoming N after midnight. Seas 3 to 5 ft. Scattered showers. Areas of fog this evening. Vsby 1 NM or less, increasing to 1 to 3 NM after midnight. .THU...NE winds 10 to 15 kt, increasing to 15 to 20 kt in the afternoon. Seas 2 to 4 ft. Rain. .THU NIGHT...NE winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Rain likely. .FRI...E winds 10 to 15 kt. Gusts up to 20 kt in the morning. Seas 2 to 3 ft. Rain. .FRI NIGHT...S winds 10 to 15 kt, becoming W after midnight. Seas 2 to 3 ft. Rain likely. .SAT...W winds 10 to 15 kt, diminishing to 5 to 10 kt in the afternoon. Seas 2 to 3 ft. .SAT NIGHT...NE winds 5 to 10 kt, increasing to 10 to 15 kt with gusts up to 25 kt after midnight. Seas 2 to 4 ft. Rain likely. .SUN...SE winds 10 to 15 kt with gusts up to 25 kt. Seas 4 to 6 ft. Rain. .SUN NIGHT...W winds 10 to 15 kt with gusts up to 20 kt. Seas 4 to 6 ft. A chance of rain. .MON...W winds 10 to 15 kt. Seas 3 to 5 ft. .MON NIGHT...NW winds 10 to 15 kt with gusts up to 20 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. $$ ANZ237-221300- Block Island Sound- 716 PM EST Wed Feb 21 2018 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 9 PM EST THIS EVENING... .TONIGHT...W winds 10 to 15 kt, becoming N 5 to 10 kt after midnight. Seas 3 to 5 ft. Isolated showers this evening, then scattered showers after midnight. Areas of fog this evening. Vsby 1 NM or less, increasing to 1 to 3 NM after midnight. .THU...NE winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Rain. .THU NIGHT...NE winds 10 to 15 kt. Gusts up to 20 kt in the evening. Seas 2 to 3 ft. Rain likely. .FRI...E winds 10 to 15 kt. Gusts up to 20 kt in the morning. Seas 2 to 3 ft. Rain. .FRI NIGHT...S winds 5 to 10 kt, becoming W 10 to 15 kt after midnight. Seas 2 to 3 ft. Rain likely. .SAT...W winds 5 to 10 kt. Seas 2 to 3 ft. .SAT NIGHT...NE winds 5 to 10 kt, increasing to 10 to 15 kt with gusts up to 25 kt after midnight. Seas 3 to 5 ft. Rain. .SUN...SE winds 15 to 20 kt with gusts up to 30 kt. Seas 4 to 6 ft. Rain. .SUN NIGHT...W winds 10 to 15 kt. Seas 4 to 6 ft. A chance of rain. .MON...W winds 10 to 15 kt. Seas 3 to 5 ft. .MON NIGHT...NW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ230-221300- Boston Harbor- 716 PM EST Wed Feb 21 2018 .TONIGHT...NW winds 10 to 15 kt with gusts up to 20 kt. Waves around 2 ft. .THU...NE winds 10 to 15 kt. Waves 1 foot or less. Snow with a chance of rain. Vsby 1 to 3 NM. .THU NIGHT...NE winds 5 to 10 kt. Waves 1 foot or less. A chance of snow. .FRI...SE winds 5 to 10 kt. Waves around 2 ft. Rain. .FRI NIGHT...S winds 5 to 10 kt, becoming W after midnight. Waves around 2 ft. A chance of rain. .SAT...NW winds 5 to 10 kt. Waves 1 foot or less. .SAT NIGHT...NE winds 5 to 10 kt. Gusts up to 20 kt after midnight. Waves around 2 ft. Rain likely. .SUN...E winds 5 to 10 kt with gusts up to 25 kt. Waves 2 to 4 ft. Rain. .SUN NIGHT...W winds 5 to 10 kt. Waves 1 foot or less, except 2 to 4 ft at the outer harbor entrance. Rain likely. .MON...W winds 5 to 10 kt. Waves around 2 ft. .MON NIGHT...NW winds around 10 kt. Waves 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. $$ ANZ236-221300- Narragansett Bay- 716 PM EST Wed Feb 21 2018 .TONIGHT...W winds 5 to 10 kt, becoming N with gusts up to 20 kt after midnight. Waves 2 to 3 ft. Scattered showers, mainly this evening. Areas of fog this evening with vsby 1 NM or less. .THU...NE winds 10 to 15 kt. Waves around 2 ft. Rain. .THU NIGHT...NE winds 5 to 10 kt. Waves around 2 ft. A chance of rain. .FRI...E winds 5 to 10 kt. Waves around 2 ft. Rain. .FRI NIGHT...S winds 5 to 10 kt, becoming W after midnight. Waves around 2 ft. Rain likely. .SAT...NW winds 5 to 10 kt. Waves around 2 ft. .SAT NIGHT...NE winds 5 to 10 kt, increasing to 10 to 15 kt with gusts up to 20 kt after midnight. Waves 2 to 3 ft. Rain likely. .SUN...E winds 10 to 15 kt with gusts up to 25 kt. Waves 2 to 4 ft. Rain. .SUN NIGHT...W winds 5 to 10 kt. Waves 2 to 4 ft. A chance of rain. .MON...W winds 5 to 10 kt. Waves 2 to 3 ft. .MON NIGHT...NW winds 5 to 10 kt with gusts up to 20 kt. Waves around 2 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ 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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