Coastal Waters Forecast
Issued by NWS Boston, MA

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000 FZUS51 KBOX 130617 CWFBOX Coastal Waters Forecast National Weather Service Taunton MA 117 AM EST Wed Dec 13 2017 Coastal waters from the Merrimack River MA to Watch Hill RI out to 25 NM ANZ200-131900- 117 AM EST Wed Dec 13 2017 .Synopsis for Massachusetts and Rhode Island coastal waters... Low pressure will intensify into a Gale Center as it heads northeast toward southern Quebec tonight and Wednesday. Low pressure moving off the Delmarva peninsula will scoot south of the waters on Thursday. Another low will approach the waters Friday night into early Saturday heading toward Nova Scotia on Saturday. High pressure builds over the waters on 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. $$ ANZ250-131900- Coastal waters east of Ipswich Bay and the Stellwagen Bank National Marine Sanctuary- 117 AM EST Wed Dec 13 2017 ...GALE WARNING IN EFFECT FROM 6 AM EST THIS MORNING THROUGH LATE TONIGHT... .REST OF TONIGHT...W winds around 20 kt with gusts up to 30 kt. Seas 4 to 6 ft. .WED...W winds 20 to 25 kt with gusts up to 30 kt, increasing to 25 to 30 kt with gusts up to 40 kt in the afternoon. Seas 5 to 8 ft. .WED NIGHT...W winds 25 to 30 kt, diminishing to 20 to 25 kt after midnight. Gusts up to 40 kt. Seas 6 to 9 ft. .THU...W winds 15 to 20 kt, increasing to 20 to 25 kt in the afternoon. Gusts up to 30 kt. Seas 4 to 6 ft. A chance of snow. .THU NIGHT...W winds 20 to 25 kt, diminishing to 15 to 20 kt after midnight. Gusts up to 30 kt. Seas 4 to 6 ft. .FRI...W winds 10 to 15 kt. Gusts up to 20 kt in the morning. Seas 2 to 4 ft. .FRI NIGHT...NW winds 10 to 15 kt. Seas 2 to 3 ft. A chance of snow showers. Vsby 1 to 3 NM. .SAT...NW winds 15 to 20 kt with gusts up to 30 kt. Seas 2 to 4 ft. .SAT NIGHT...NW winds 15 to 20 kt with gusts up to 30 kt. Seas 3 to 5 ft. .SUN...W winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. .SUN NIGHT...W winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 5 ft. A chance of showers. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ251-131900- Massachusetts Bay and Ipswich Bay- 117 AM EST Wed Dec 13 2017 ...GALE WARNING IN EFFECT FROM 8 AM EST THIS MORNING THROUGH LATE TONIGHT... .REST OF TONIGHT...W winds 15 to 20 kt with gusts up to 30 kt. Seas 2 to 4 ft. .WED...W winds 20 to 25 kt with gusts up to 30 kt, increasing to 25 to 30 kt with gusts up to 40 kt in the afternoon. Seas 3 to 5 ft. .WED NIGHT...W winds 25 to 30 kt with gusts up to 40 kt, diminishing to 15 to 20 kt with gusts up to 30 kt after midnight. Seas 3 to 5 ft. .THU...W winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 3 ft. A chance of snow. .THU NIGHT...W winds 15 to 20 kt, diminishing to 10 to 15 kt after midnight. Gusts up to 30 kt. Seas 2 to 4 ft. .FRI...W winds 10 to 15 kt with gusts up to 20 kt, diminishing to 5 to 10 kt in the afternoon. Seas 2 to 3 ft. .FRI NIGHT...NW winds 5 to 10 kt. Seas 1 foot or less. A chance of snow showers. .SAT...NW winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 3 ft. .SAT NIGHT...NW winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 3 ft. .SUN...W winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. .SUN NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. A chance of rain and snow 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. $$ ANZ231-131900- Cape Cod Bay- 117 AM EST Wed Dec 13 2017 ...GALE WARNING IN EFFECT FROM 10 AM EST THIS MORNING THROUGH LATE TONIGHT... .REST OF TONIGHT...W winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 3 ft. .WED...W winds 20 to 25 kt with gusts up to 30 kt, increasing to 25 to 30 kt with gusts up to 40 kt in the afternoon. Seas 3 to 5 ft. .WED NIGHT...W winds 25 to 30 kt with gusts up to 40 kt, diminishing to 15 to 20 kt with gusts up to 30 kt after midnight. Seas 3 to 5 ft. A chance of snow. .THU...W winds 10 to 15 kt, increasing to 15 to 20 kt in the afternoon. Gusts up to 25 kt. Seas 2 to 4 ft. A chance of snow. .THU NIGHT...W winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 4 ft. .FRI...W winds 5 to 10 kt. Seas 2 to 3 ft. .FRI NIGHT...NW winds 5 to 10 kt. Seas 1 foot or less. A chance of snow showers. Vsby 1 to 3 NM. .SAT...NW winds 15 to 20 kt with gusts up to 30 kt. Seas 2 to 3 ft. A chance of snow showers. Vsby 1 to 3 NM. .SAT NIGHT...NW winds 15 to 20 kt with gusts up to 30 kt. Seas 2 to 3 ft. .SUN...W winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. .SUN NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. A chance of showers. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ254-131900- Coastal waters from Provincetown MA to Chatham MA to Nantucket MA out 20 nm- 117 AM EST Wed Dec 13 2017 ...GALE WARNING IN EFFECT FROM 6 AM EST THIS MORNING THROUGH LATE TONIGHT... .REST OF TONIGHT...W winds 15 to 20 kt with gusts up to 30 kt. Seas 4 to 7 ft. A slight chance of showers. .WED...W winds 25 to 30 kt with gusts up to 45 kt. Seas 7 to 10 ft, except 9 to 14 ft S and E of Nantucket. .WED NIGHT...W winds 25 to 30 kt, diminishing to 20 to 25 kt after midnight. Gusts up to 40 kt. Seas 7 to 10 ft, except 9 to 14 ft S and E of Nantucket. A chance of snow. Vsby 1 to 3 NM. .THU...W winds 10 to 15 kt, increasing to 15 to 20 kt in the afternoon. Gusts up to 30 kt. Seas 4 to 6 ft. A chance of snow. Vsby 1 to 3 NM. .THU NIGHT...NW winds 15 to 20 kt with gusts up to 30 kt. Seas 4 to 7 ft. .FRI...W winds 10 to 15 kt with gusts up to 20 kt, diminishing to 5 to 10 kt in the afternoon. Seas 3 to 5 ft. .FRI NIGHT...NW winds 5 to 10 kt, increasing to 10 to 15 kt with gusts up to 20 kt after midnight. Seas 2 to 4 ft. A chance of snow showers. Vsby 1 NM or less. .SAT...NW winds 15 to 20 kt with gusts up to 30 kt. Seas 3 to 5 ft. A chance of snow showers. Vsby 1 NM or less. .SAT NIGHT...NW winds 20 to 25 kt with gusts up to 30 kt. Seas 4 to 6 ft. .SUN...W winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 5 ft. .SUN NIGHT...W winds 10 to 15 kt with gusts up to 20 kt. Seas 4 to 6 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. $$ ANZ255-131900- Coastal Waters extending out to 25 nm South of Marthas Vineyard and Nantucket- 117 AM EST Wed Dec 13 2017 ...GALE WARNING IN EFFECT FROM 5 AM EST EARLY THIS MORNING THROUGH LATE TONIGHT... .REST OF TONIGHT...W winds 20 to 25 kt with gusts up to 30 kt. Seas 6 to 9 ft. .WED...W winds 25 to 35 kt with gusts up to 45 kt. Seas 9 to 14 ft. .WED NIGHT...W winds 25 to 30 kt with gusts up to 40 kt, diminishing to 20 to 25 kt with gusts up to 30 kt after midnight. Seas 9 to 12 ft. A chance of snow. Vsby 1 to 3 NM. .THU...NW winds 10 to 15 kt, increasing to 15 to 20 kt in the afternoon. Gusts up to 25 kt. Seas 5 to 8 ft. Snow likely. Vsby 1 to 3 NM. .THU NIGHT...NW winds 15 to 20 kt with gusts up to 25 kt. Seas 5 to 8 ft. .FRI...W winds around 10 kt. Seas 3 to 5 ft. .FRI NIGHT...NW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. A chance of snow and rain showers. Vsby 1 NM or less. .SAT...NW winds 20 to 25 kt with gusts up to 30 kt. Seas 4 to 6 ft. A chance of snow showers. Vsby 1 to 3 NM. .SAT NIGHT...NW winds 20 to 25 kt with gusts up to 30 kt. Seas 4 to 7 ft. .SUN...W winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 5 ft. .SUN NIGHT...W winds around 15 kt with gusts up to 20 kt. Seas 5 to 8 ft. A chance of showers. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ256-131900- Coastal Waters from Montauk NY to Marthas Vineyard extending out to 20 nm South of Block Island- 117 AM EST Wed Dec 13 2017 ...GALE WARNING IN EFFECT FROM 5 AM EST EARLY THIS MORNING THROUGH LATE TONIGHT... .REST OF TONIGHT...W winds 20 to 25 kt with gusts up to 30 kt. Seas 6 to 9 ft. .WED...W winds 25 to 35 kt with gusts up to 45 kt. Seas 8 to 13 ft. .WED NIGHT...W winds 25 to 30 kt with gusts up to 40 kt, diminishing to 20 to 25 kt with gusts up to 30 kt after midnight. Seas 8 to 11 ft. Snow likely. Vsby 1 to 3 NM. .THU...NW winds 10 to 15 kt, increasing to 15 to 20 kt in the afternoon. Gusts up to 25 kt. Seas 4 to 7 ft. Snow likely. Vsby 1 to 3 NM. .THU NIGHT...NW winds 15 to 20 kt with gusts up to 30 kt. Seas 5 to 8 ft. .FRI...W winds 5 to 10 kt. Seas 3 to 5 ft. .FRI NIGHT...NW winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 4 ft. A chance of snow and rain showers. Vsby 1 to 3 NM. .SAT...NW winds 20 to 25 kt with gusts up to 30 kt. Seas 4 to 7 ft. A chance of snow showers. Vsby 1 to 3 NM. .SAT NIGHT...NW winds 20 to 25 kt with gusts up to 30 kt. Seas 4 to 6 ft. .SUN...W winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 5 ft. A chance of showers. .SUN NIGHT...W winds around 15 kt with gusts up to 25 kt. Seas 6 to 9 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. $$ ANZ232-131900- Nantucket Sound- 117 AM EST Wed Dec 13 2017 ...GALE WARNING IN EFFECT FROM 8 AM EST THIS MORNING THROUGH LATE TONIGHT... .REST OF TONIGHT...W winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 4 ft. .WED...W winds 20 to 25 kt, increasing to 25 to 30 kt in the afternoon. Gusts up to 40 kt. Seas 4 to 6 ft. .WED NIGHT...W winds 25 to 30 kt with gusts up to 40 kt, diminishing to 15 to 20 kt with gusts up to 30 kt after midnight. Seas 4 to 6 ft. A chance of snow. Vsby 1 to 3 NM. .THU...NW winds 10 to 15 kt, increasing to 15 to 20 kt in the afternoon. Gusts up to 25 kt. Seas 2 to 4 ft. Snow likely. Vsby 1 to 3 NM. .THU NIGHT...NW winds 15 to 20 kt, diminishing to 10 to 15 kt after midnight. Gusts up to 25 kt. Seas 2 to 4 ft. .FRI...W winds 5 to 10 kt. Seas 2 to 3 ft. .FRI NIGHT...NW winds 10 to 15 kt. Gusts up to 20 kt after midnight. Seas around 2 ft. A chance of snow showers. Vsby 1 to 3 NM. .SAT...NW winds 15 to 20 kt with gusts up to 30 kt. Seas 2 to 3 ft. A chance of snow showers. Vsby 1 to 3 NM. .SAT NIGHT...NW winds 15 to 20 kt with gusts up to 30 kt. Seas 2 to 4 ft. .SUN...W winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. A chance of showers. .SUN NIGHT...W winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. A chance of showers. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ233-131900- Vineyard Sound- 117 AM EST Wed Dec 13 2017 ...GALE WARNING IN EFFECT FROM 8 AM EST THIS MORNING THROUGH LATE TONIGHT... .REST OF TONIGHT...W winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to 5 ft. .WED...W winds 20 to 25 kt, increasing to 25 to 30 kt in the afternoon. Gusts up to 40 kt. Seas 4 to 7 ft. .WED NIGHT...W winds 25 to 30 kt, diminishing to 15 to 20 kt after midnight. Seas 4 to 6 ft. Snow likely. .THU...NW winds 10 to 15 kt, increasing to 15 to 20 kt in the afternoon. Gusts up to 25 kt. Seas 2 to 4 ft. Snow likely. .THU NIGHT...NW winds 15 to 20 kt, diminishing to 10 to 15 kt after midnight. Gusts up to 25 kt. Seas 2 to 4 ft. .FRI...W winds around 10 kt. Seas 2 to 3 ft. .FRI NIGHT...NW winds 10 to 15 kt. Gusts up to 20 kt after midnight. Seas around 2 ft. A chance of snow showers. Vsby 1 to 3 NM. .SAT...NW winds 15 to 20 kt with gusts up to 30 kt. Seas 2 to 3 ft. A chance of snow showers. .SAT NIGHT...NW winds 15 to 20 kt with gusts up to 30 kt. Seas 2 to 3 ft. .SUN...W winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. A chance of showers. .SUN NIGHT...W winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 5 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. $$ ANZ234-131900- Buzzards Bay- 117 AM EST Wed Dec 13 2017 ...GALE WARNING IN EFFECT FROM 8 AM EST THIS MORNING THROUGH LATE TONIGHT... .REST OF TONIGHT...W winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 4 ft. .WED...W winds 20 to 25 kt with gusts up to 40 kt. Seas 3 to 4 ft. .WED NIGHT...W winds 20 to 25 kt, diminishing to 15 to 20 kt after midnight. Gusts up to 35 kt. Seas 3 to 5 ft. A chance of snow. .THU...NW winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 3 ft. Snow likely. .THU NIGHT...NW winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 3 ft. .FRI...W winds 5 to 10 kt. Seas 2 to 3 ft. .FRI NIGHT...NW winds 5 to 10 kt. Gusts up to 20 kt after midnight. Seas around 2 ft. A chance of snow showers. Vsby 1 to 3 NM. .SAT...NW winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 3 ft. A chance of snow showers. .SAT NIGHT...NW winds 15 to 20 kt with gusts up to 30 kt. Seas 2 to 3 ft. .SUN...W winds around 10 kt with gusts up to 20 kt. Seas 2 to 3 ft. .SUN NIGHT...W winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. A chance of showers. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ235-131900- Rhode Island Sound- 117 AM EST Wed Dec 13 2017 ...GALE WARNING IN EFFECT FROM 6 AM EST THIS MORNING THROUGH LATE TONIGHT... .REST OF TONIGHT...W winds 20 to 25 kt with gusts up to 30 kt. Seas 4 to 7 ft. .WED...W winds 25 to 30 kt with gusts up to 40 kt. Seas 6 to 9 ft. .WED NIGHT...W winds 25 to 30 kt, diminishing to 20 to 25 kt after midnight. Seas 5 to 8 ft. Snow likely. Vsby 1 to 3 NM. .THU...NW winds 10 to 15 kt, increasing to 15 to 20 kt in the afternoon. Gusts up to 25 kt. Seas 3 to 5 ft. A chance of snow. .THU NIGHT...NW winds 15 to 20 kt, diminishing to 10 to 15 kt after midnight. Gusts up to 30 kt. Seas 4 to 6 ft. .FRI...W winds 5 to 10 kt. Seas 2 to 4 ft. .FRI NIGHT...NW winds 5 to 10 kt, increasing to 10 to 15 kt with gusts up to 20 kt after midnight. Seas 2 to 3 ft. A chance of snow showers. Vsby 1 to 3 NM. .SAT...NW winds 15 to 20 kt with gusts up to 30 kt. Seas 2 to 4 ft. .SAT NIGHT...NW winds 15 to 20 kt with gusts up to 30 kt. Seas 2 to 4 ft. .SUN...W winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. A chance of showers. .SUN NIGHT...W winds 10 to 15 kt with gusts up to 20 kt. Seas 4 to 6 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. $$ ANZ237-131900- Block Island Sound- 117 AM EST Wed Dec 13 2017 ...GALE WARNING IN EFFECT FROM 6 AM EST THIS MORNING THROUGH LATE TONIGHT... .REST OF TONIGHT...W winds 20 to 25 kt with gusts up to 30 kt. Seas 4 to 6 ft. .WED...W winds 25 to 30 kt with gusts up to 40 kt. Seas 4 to 7 ft. .WED NIGHT...W winds 25 to 30 kt, diminishing to 15 to 20 kt after midnight. Seas 4 to 7 ft. A chance of snow. Vsby 1 to 3 NM. .THU...NW winds 10 to 15 kt with gusts up to 25 kt. Seas 3 to 5 ft. A chance of snow. .THU NIGHT...NW winds 10 to 15 kt with gusts up to 25 kt. Seas 3 to 5 ft. .FRI...W winds 5 to 10 kt. Seas 2 to 4 ft. .FRI NIGHT...NW winds 10 to 15 kt. Gusts up to 20 kt after midnight. Seas 2 to 3 ft. A chance of snow showers. Vsby 1 to 3 NM. .SAT...NW winds 15 to 20 kt with gusts up to 30 kt. Seas 2 to 4 ft. A chance of snow showers. .SAT NIGHT...NW winds 15 to 20 kt with gusts up to 30 kt. Seas 2 to 4 ft. .SUN...W winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. A chance of showers. .SUN NIGHT...W winds 10 to 15 kt with gusts up to 20 kt. Seas 4 to 6 ft. A chance of showers. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ230-131900- Boston Harbor- 117 AM EST Wed Dec 13 2017 ...GALE WARNING IN EFFECT FROM 1 PM EST THIS AFTERNOON THROUGH LATE TONIGHT... .REST OF TONIGHT...W winds 15 to 20 kt with gusts up to 25 kt. Waves around 2 ft. .WED...W winds 20 to 25 kt with gusts up to 35 kt. Waves around 2 ft. .WED NIGHT...W winds 20 to 25 kt, diminishing to 10 to 15 kt after midnight. Gusts up to 35 kt. Waves around 2 ft. .THU...W winds 10 to 15 kt with gusts up to 25 kt. Waves around 2 ft. A chance of snow. .THU NIGHT...W winds 5 to 10 kt. Gusts up to 20 kt in the evening. Waves around 2 ft. .FRI...W winds 5 to 10 kt. Waves 1 foot or less. .FRI NIGHT...NW winds around 5 kt. Waves 1 foot or less. A chance of snow showers. .SAT...NW winds 5 to 10 kt with gusts up to 20 kt. Waves 1 foot or less. .SAT NIGHT...W winds 5 to 10 kt with gusts up to 20 kt. Waves 1 foot or less. .SUN...W winds 5 to 10 kt. Waves 1 foot or less. .SUN NIGHT...SW winds 5 to 10 kt. Waves 1 foot or less. A chance of snow and rain 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. $$ ANZ236-131900- Narragansett Bay- 117 AM EST Wed Dec 13 2017 ...GALE WARNING IN EFFECT FROM 1 PM EST THIS AFTERNOON THROUGH LATE TONIGHT... .REST OF TONIGHT...W winds 15 to 20 kt with gusts up to 25 kt. Waves 2 to 3 ft. .WED...W winds 15 to 20 kt with gusts up to 30 kt, increasing to 20 to 25 kt with gusts up to 40 kt in the afternoon. Waves around 3 ft, except 4 to 6 ft at the bay entrance. .WED NIGHT...W winds 15 to 20 kt, diminishing to 10 to 15 kt after midnight. Gusts up to 35 kt. Waves 2 to 3 ft. A chance of snow. .THU...NW winds 5 to 10 kt, increasing to 10 to 15 kt in the afternoon. Gusts up to 25 kt. Waves 2 to 3 ft. A chance of snow. .THU NIGHT...NW winds 10 to 15 kt, diminishing to 5 to 10 kt after midnight. Gusts up to 25 kt. Waves 2 to 3 ft. .FRI...W winds 5 to 10 kt. Waves 2 to 3 ft. .FRI NIGHT...NW winds 5 to 10 kt. Waves around 2 ft. A chance of snow showers. .SAT...NW winds 10 to 15 kt with gusts up to 25 kt. Waves 2 to 3 ft. .SAT NIGHT...NW winds 10 to 15 kt with gusts up to 25 kt. Waves 2 to 3 ft. .SUN...W winds 5 to 10 kt. Waves 2 to 3 ft. A chance of showers. .SUN NIGHT...W winds 5 to 10 kt. Waves 2 to 3 ft. A chance of showers. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ 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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