Coastal Waters Forecast
Issued by NWS Boston, MA

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000 FZUS51 KBOX 210616 CWFBOX Coastal Waters Forecast National Weather Service Taunton MA 116 AM EST Wed Feb 21 2018 Coastal waters from the Merrimack River MA to Watch Hill RI out to 25 NM ANZ200-211900- 116 AM EST Wed Feb 21 2018 .Synopsis for Massachusetts and Rhode Island coastal waters... Persistent SW flow is expected through Wed. A cold front will cross the waters Wed night. Strong high pres builds to the north Thu as a wave of low pres tracks to the south. The high pres moves east of Nova Scotia Fri with a frontal system moving into the waters. Another high pres builds to the north Sat. 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. $$ ANZ250-211900- Coastal waters east of Ipswich Bay and the Stellwagen Bank National Marine Sanctuary- 116 AM EST Wed Feb 21 2018 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT... .REST OF TONIGHT...SW winds 5 to 10 kt with gusts up to 20 kt. Seas 3 to 5 ft. Areas of dense fog. Vsby 1 NM or less. .WED...SW winds 15 to 20 kt. Seas 3 to 5 ft. Areas of dense fog. Vsby 1 NM or less. .WED NIGHT...W winds 10 to 15 kt, becoming N after midnight. Gusts up to 25 kt. Seas 3 to 5 ft. .THU...NE winds 10 to 15 kt. Gusts up to 20 kt in the morning. Seas 3 to 5 ft. A chance of rain and snow. Vsby 1 to 3 NM. .THU NIGHT...NE winds 5 to 10 kt. Seas 2 to 3 ft. A chance of rain. Vsby 1 to 3 NM. .FRI...E winds around 10 kt, becoming SE in the afternoon. Seas 2 to 3 ft. A chance of rain. Vsby 1 to 3 NM. .FRI NIGHT...S winds 10 to 15 kt. Gusts up to 20 kt in the evening. Seas 2 to 3 ft. Rain likely. .SAT...W winds 5 to 10 kt. Seas around 2 ft. .SAT NIGHT...NE winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. A chance of rain. .SUN...E winds 15 to 20 kt with gusts up to 25 kt. Seas 4 to 7 ft. Rain likely. .SUN NIGHT...W winds 10 to 15 kt with gusts up to 20 kt. Seas 5 to 8 ft. A chance of rain. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ251-211900- Massachusetts Bay and Ipswich Bay- 116 AM EST Wed Feb 21 2018 .REST OF TONIGHT...E winds 5 to 10 kt. Seas 2 to 4 ft. Patchy fog. Vsby 1 NM or less. .WED...SW winds 10 to 15 kt. Gusts up to 20 kt in the afternoon. Seas 2 to 4 ft. Patchy fog. Vsby 1 NM or less. .WED NIGHT...W winds 10 to 15 kt, becoming N 5 to 10 kt after midnight. Gusts up to 20 kt. Seas 2 to 3 ft. .THU...N winds 10 to 15 kt with gusts up to 20 kt, becoming NE 5 to 10 kt in the afternoon. Seas 2 to 3 ft. A chance of rain and snow. Vsby 1 to 3 NM. .THU NIGHT...NE winds 5 to 10 kt. Seas around 2 ft. .FRI...NE winds 5 to 10 kt, becoming SE in the afternoon. Seas around 2 ft. A chance of rain. Vsby 1 to 3 NM. .FRI NIGHT...SW winds 5 to 10 kt. Gusts up to 20 kt in the evening. Seas 2 to 3 ft. Rain likely. .SAT...W winds 5 to 10 kt. Seas around 2 ft. .SAT NIGHT...NE winds 5 to 10 kt with gusts up to 20 kt. Seas 2 to 3 ft. A chance of rain. .SUN...E winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. Rain likely. .SUN NIGHT...NW winds 5 to 10 kt with gusts up to 20 kt. Seas 3 to 5 ft. A chance of rain. 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. $$ ANZ231-211900- Cape Cod Bay- 116 AM EST Wed Feb 21 2018 ...SMALL CRAFT ADVISORY IN EFFECT FROM 11 AM EST THIS MORNING THROUGH THIS EVENING... .REST OF TONIGHT...SW winds around 10 kt. Seas 2 to 3 ft. Areas of dense fog. Vsby 1 NM or less. .WED...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. Areas of dense fog. Vsby 1 NM or less. .WED NIGHT...W winds 10 to 15 kt, becoming N after midnight. Gusts up to 20 kt. Seas 2 to 3 ft. Patchy fog. Vsby 1 to 3 NM. .THU...NE winds 10 to 15 kt. Gusts up to 20 kt in the morning. Seas 2 to 3 ft. Rain and snow likely. Vsby 1 to 3 NM. .THU NIGHT...NE winds 5 to 10 kt. Seas around 2 ft. A chance of rain and snow. Vsby 1 to 3 NM. .FRI...E winds 5 to 10 kt, becoming SE in the afternoon. Seas 1 foot or less. A chance of rain. .FRI NIGHT...S winds 5 to 10 kt. Seas 1 foot or less. Rain likely. .SAT...W winds 5 to 10 kt. Seas 1 foot or less. .SAT NIGHT...N winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft. A chance of rain. .SUN...E winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. Rain likely. .SUN NIGHT...W winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. A chance of rain. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ254-211900- Coastal waters from Provincetown MA to Chatham MA to Nantucket MA out 20 nm- 116 AM EST Wed Feb 21 2018 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT... .REST OF TONIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 5 ft. Areas of dense fog. A chance of drizzle. Vsby 1 NM or less. .WED...SW winds 15 to 20 kt. Seas 4 to 6 ft. Areas of dense fog. A chance of drizzle. Vsby 1 NM or less. .WED NIGHT...W winds 15 to 20 kt, becoming N 10 to 15 kt after midnight. Gusts up to 25 kt. Seas 3 to 5 ft. Patchy fog. Vsby 1 NM or less. .THU...NE winds 10 to 15 kt with gusts up to 25 kt. Seas 3 to 5 ft. A chance of rain. Vsby 1 to 3 NM. .THU NIGHT...NE winds 5 to 10 kt. Seas 2 to 4 ft. A chance of rain. Vsby 1 to 3 NM. .FRI...E winds around 10 kt. Seas 2 to 3 ft. A chance of rain. .FRI NIGHT...S winds 10 to 15 kt. Seas 2 to 4 ft. Rain likely. .SAT...W winds 10 to 15 kt. Seas 2 to 4 ft. .SAT NIGHT...N winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. A chance of rain. .SUN...E winds 15 to 20 kt with gusts up to 25 kt. Seas 4 to 7 ft. Rain likely. .SUN NIGHT...W winds 15 to 20 kt with gusts up to 25 kt. Seas 5 to 8 ft. A chance of rain. 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. $$ ANZ255-211900- Coastal Waters extending out to 25 nm South of Marthas Vineyard and Nantucket- 116 AM EST Wed Feb 21 2018 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT... .REST OF TONIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 4 to 6 ft. Areas of dense fog. A chance of drizzle. Vsby 1 NM or less. .WED...SW winds 15 to 20 kt. Seas 5 to 7 ft. Areas of dense fog. A chance of drizzle. Vsby 1 NM or less. .WED NIGHT...SW winds 10 to 15 kt, becoming N after midnight. Gusts up to 20 kt. Seas 4 to 7 ft. Patchy fog. Vsby 1 NM or less. .THU...NE winds 10 to 15 kt with gusts up to 25 kt. Seas 3 to 5 ft. Rain likely. .THU NIGHT...NE winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. A chance of rain. Vsby 1 to 3 NM. .FRI...E winds 10 to 15 kt. Gusts up to 20 kt in the morning. Seas 2 to 4 ft. A chance of rain. .FRI NIGHT...SE winds around 10 kt, becoming SW after midnight. Seas 2 to 4 ft. Rain likely. .SAT...W winds 10 to 15 kt. Seas 2 to 4 ft. A chance of rain. .SAT NIGHT...N winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. A chance of rain. .SUN...E winds around 15 kt with gusts up to 25 kt. Seas 4 to 7 ft. Rain. .SUN NIGHT...W winds 15 to 20 kt with gusts up to 25 kt. Seas 6 to 9 ft. A chance of rain. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ256-211900- Coastal Waters from Montauk NY to Marthas Vineyard extending out to 20 nm South of Block Island- 116 AM EST Wed Feb 21 2018 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT... .REST OF TONIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 4 to 6 ft. Areas of dense fog. A chance of drizzle. Vsby 1 NM or less. .WED...SW winds 15 to 20 kt. Seas 5 to 7 ft. Areas of dense fog. A chance of drizzle. Vsby 1 NM or less. .WED NIGHT...SW winds 10 to 15 kt, becoming N after midnight. Gusts up to 20 kt. Seas 4 to 7 ft. Patchy fog. Vsby 1 NM or less. .THU...NE winds 10 to 15 kt with gusts up to 25 kt. Seas 3 to 4 ft. Rain likely. .THU NIGHT...NE winds 10 to 15 kt, increasing to 15 to 20 kt after midnight. Seas 2 to 4 ft. A chance of rain. .FRI...E winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. A chance of rain. .FRI NIGHT...SE winds 10 to 15 kt, becoming SW after midnight. Seas around 3 ft. Rain likely. .SAT...W winds 5 to 10 kt. Seas around 3 ft. A chance of rain. .SAT NIGHT...NE winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 4 ft. A chance of rain. .SUN...SE winds around 15 kt with gusts up to 20 kt. Seas 4 to 7 ft. Rain likely. .SUN NIGHT...W winds 10 to 15 kt with gusts up to 25 kt. Seas 6 to 9 ft. A chance of rain. 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. $$ ANZ232-211900- Nantucket Sound- 116 AM EST Wed Feb 21 2018 ...SMALL CRAFT ADVISORY IN EFFECT FROM 11 AM EST THIS MORNING THROUGH THIS EVENING... .REST OF TONIGHT...SW winds around 10 kt with gusts up to 20 kt. Seas 2 to 4 ft. Areas of dense fog. A chance of drizzle. Vsby 1 NM or less. .WED...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. Areas of dense fog. A chance of drizzle. Vsby 1 NM or less. .WED NIGHT...W winds 10 to 15 kt, becoming N after midnight. Gusts up to 20 kt. Seas 2 to 4 ft. Patchy fog. Vsby 1 NM or less. .THU...NE winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Rain likely. Vsby 1 to 3 NM. .THU NIGHT...NE winds 5 to 10 kt. Seas around 2 ft. A chance of rain. Vsby 1 to 3 NM. .FRI...E winds 5 to 10 kt, becoming SE in the afternoon. Seas around 2 ft. A chance of rain. .FRI NIGHT...SE winds around 10 kt, becoming SW after midnight. Seas around 2 ft. Rain likely. .SAT...W winds 5 to 10 kt. Seas around 2 ft. .SAT NIGHT...N winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. A chance of rain. .SUN...E winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. Rain likely. .SUN NIGHT...W winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. A chance of rain. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ233-211900- Vineyard Sound- 116 AM EST Wed Feb 21 2018 ...SMALL CRAFT ADVISORY IN EFFECT FROM 11 AM EST THIS MORNING THROUGH THIS EVENING... .REST OF TONIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. Areas of dense fog. A chance of drizzle. Vsby 1 NM or less. .WED...SW winds 10 to 15 kt, increasing to 15 to 20 kt in the afternoon. Seas 3 to 5 ft. Areas of dense fog. A chance of drizzle. Vsby 1 NM or less. .WED NIGHT...W winds 10 to 15 kt, becoming N after midnight. Gusts up to 20 kt. Seas 2 to 4 ft. Patchy fog. Vsby 1 NM or less. .THU...NE winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Rain likely. Vsby 1 to 3 NM. .THU NIGHT...NE winds 5 to 10 kt, increasing to 10 to 15 kt after midnight. Seas 1 foot or less. A chance of rain. Vsby 1 to 3 NM. .FRI...E winds 5 to 10 kt. Seas 1 foot or less. A chance of rain. .FRI NIGHT...SE winds around 10 kt, becoming SW after midnight. Seas around 2 ft. Rain likely. .SAT...W winds 5 to 10 kt. Seas around 2 ft. A chance of rain. .SAT NIGHT...N winds 5 to 10 kt. Seas 2 to 3 ft. A chance of rain. .SUN...E winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. Rain likely. .SUN NIGHT...W winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 5 ft. A chance of rain. 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. $$ ANZ234-211900- Buzzards Bay- 116 AM EST Wed Feb 21 2018 ...SMALL CRAFT ADVISORY IN EFFECT FROM 11 AM EST THIS MORNING THROUGH THIS EVENING... .REST OF TONIGHT...SW winds 5 to 10 kt with gusts up to 20 kt. Seas 2 to 3 ft. Areas of dense fog. A chance of drizzle. Vsby 1 NM or less. .WED...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. Areas of dense fog. Vsby 1 NM or less. .WED NIGHT...W winds 10 to 15 kt, becoming N 5 to 10 kt with gusts up to 20 kt after midnight. Seas 2 to 3 ft. Patchy fog. Vsby 1 NM or less. .THU...NE winds 5 to 10 kt. Gusts up to 20 kt in the morning. Seas around 2 ft. Rain and snow likely. Vsby 1 to 3 NM. .THU NIGHT...NE winds 5 to 10 kt. Seas 1 foot or less. A chance of rain and snow. Vsby 1 to 3 NM. .FRI...E winds 5 to 10 kt. Seas 1 foot or less. A chance of rain. .FRI NIGHT...SE winds 5 to 10 kt, becoming SW after midnight. Seas 1 foot or less. Rain likely. .SAT...W winds 5 to 10 kt. Seas around 2 ft. A chance of rain. .SAT NIGHT...N winds 5 to 10 kt. Seas around 2 ft. A chance of rain. .SUN...E winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Rain likely. .SUN NIGHT...W winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. A chance of rain. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ235-211900- Rhode Island Sound- 116 AM EST Wed Feb 21 2018 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS EVENING... .REST OF TONIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 5 ft. Areas of dense fog. A chance of drizzle. Vsby 1 NM or less. .WED...SW winds 10 to 15 kt, increasing to 15 to 20 kt in the afternoon. Seas 4 to 6 ft. Areas of dense fog. A chance of drizzle. Vsby 1 NM or less. .WED NIGHT...W winds 10 to 15 kt with gusts up to 20 kt, becoming N after midnight. Seas 3 to 5 ft. Patchy fog. Vsby 1 NM or less. .THU...NE winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. Rain likely. Vsby 1 to 3 NM. .THU NIGHT...NE winds 10 to 15 kt. Gusts up to 20 kt after midnight. Seas 2 to 3 ft. A chance of rain and freezing rain. .FRI...E winds 10 to 15 kt. Seas 2 to 3 ft. A chance of rain. .FRI NIGHT...SE winds 5 to 10 kt, becoming SW after midnight. Seas around 2 ft. Rain likely. .SAT...W winds 5 to 10 kt. Seas 2 to 3 ft. A chance of rain. .SAT NIGHT...N winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. A chance of rain. .SUN...E winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 5 ft. Rain likely. .SUN NIGHT...W winds 10 to 15 kt with gusts up to 25 kt. Seas 4 to 7 ft. A chance of rain. 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. $$ ANZ237-211900- Block Island Sound- 116 AM EST Wed Feb 21 2018 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS EVENING... .REST OF TONIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 5 ft. Areas of dense fog. A chance of drizzle. Vsby 1 NM or less. .WED...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 5 ft. Areas of dense fog. A chance of drizzle. Vsby 1 NM or less. .WED NIGHT...W winds 10 to 15 kt, becoming N 5 to 10 kt after midnight. Seas 3 to 5 ft. Patchy fog. Vsby 1 NM or less. .THU...NE winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. Rain likely. .THU NIGHT...NE winds 10 to 15 kt. Gusts up to 20 kt after midnight. Seas 2 to 3 ft. A chance of rain and freezing rain. .FRI...E winds 10 to 15 kt. Seas 2 to 3 ft. A chance of rain. .FRI NIGHT...SE winds 5 to 10 kt, becoming SW after midnight. Seas 2 to 3 ft. Rain likely. .SAT...W winds 5 to 10 kt. Seas 2 to 3 ft. A chance of rain. .SAT NIGHT...NE winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. A chance of rain. .SUN...E winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 5 ft. Rain likely. .SUN NIGHT...W winds 10 to 15 kt with gusts up to 25 kt. Seas 4 to 6 ft. A chance of rain. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ230-211900- Boston Harbor- 116 AM EST Wed Feb 21 2018 .REST OF TONIGHT...E winds 5 to 10 kt. Waves 1 foot or less. Patchy fog. Vsby 1 to 3 NM. .WED...SW winds 10 to 15 kt with gusts up to 25 kt. Waves around 2 ft. Patchy fog. Vsby 1 to 3 NM. .WED NIGHT...NW winds 5 to 10 kt. Waves around 2 ft. .THU...NE winds 5 to 10 kt. Waves 1 foot or less. A chance of rain and snow. Vsby 1 to 3 NM. .THU NIGHT...NE winds 5 to 10 kt. Waves 1 foot or less. .FRI...NE winds 5 to 10 kt, becoming SE in the afternoon. Waves around 2 ft. A chance of rain. .FRI NIGHT...SW winds 5 to 10 kt. Waves 1 foot or less. Rain likely. .SAT...W winds 5 to 10 kt. Waves 1 foot or less. .SAT NIGHT...NE winds 5 to 10 kt. Waves 1 foot or less. A chance of rain. .SUN...E winds around 10 kt. Waves 2 to 3 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. A chance of rain. 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. $$ ANZ236-211900- Narragansett Bay- 116 AM EST Wed Feb 21 2018 .REST OF TONIGHT...SW winds 5 to 10 kt. Waves 2 to 3 ft. Areas of dense fog. A chance of drizzle. Vsby 1 NM or less. .WED...SW winds 10 to 15 kt with gusts up to 20 kt. Waves 2 to 4 ft. Areas of dense fog. Vsby 1 NM or less. .WED NIGHT...W winds 5 to 10 kt, becoming N after midnight. Waves 2 to 4 ft. Patchy fog. Vsby 1 NM or less. .THU...NE winds 5 to 10 kt. Waves 2 to 3 ft. Rain, snow likely with a chance of freezing rain. Vsby 1 to 3 NM. .THU NIGHT...NE winds 5 to 10 kt. Waves around 2 ft. A chance of rain and freezing rain. Vsby 1 to 3 NM. .FRI...NE winds 5 to 10 kt, becoming SE in the afternoon. Waves around 2 ft. A chance of rain. .FRI NIGHT...S winds 5 to 10 kt, becoming SW after midnight. Waves around 2 ft. Rain likely. .SAT...W winds 5 to 10 kt. Waves around 2 ft. A chance of rain. .SAT NIGHT...NE winds 5 to 10 kt. Waves around 2 ft. A chance of rain. .SUN...E winds 5 to 10 kt with gusts up to 20 kt. Waves 2 to 3 ft. Rain likely. .SUN NIGHT...W winds 5 to 10 kt with gusts up to 20 kt. Waves 2 to 4 ft. A chance of rain. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ 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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