Coastal Waters Forecast
Issued by NWS Boston, MA
Issued by NWS Boston, MA
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556 FZUS51 KBOX 150504 CWFBOX Coastal Waters Forecast for Massachusetts and Rhode Island National Weather Service Boston/Norton MA 104 AM EDT Mon Jul 15 2024 Coastal waters from the Merrimack River MA to Watch Hill RI out to 25 NM ANZ200-151800- 104 AM EDT Mon Jul 15 2024 .Synopsis for Massachusetts and Rhode Island coastal waters... High pressure over the Atlantic will generate persistent southwest winds through Wed. Marine fog will be possible at times particularly during the overnight and early morning hours. A few thunderstorms will also be possible at times...particularly near shore during the afternoon and evening hours. A cold front will be finally begin to shift the winds to a W and eventually NW direction Thu or Thu night. $$ ANZ250-151800- Coastal waters east of Ipswich Bay and the Stellwagen Bank National Marine Sanctuary- 104 AM EDT Mon Jul 15 2024 .REST OF TONIGHT...SW winds around 10 kt. Seas around 2 ft. Wave Detail: SE 2 ft at 8 seconds and SW 1 foot at 3 seconds. .MON...S winds 10 to 15 kt. Gusts up to 20 kt in the afternoon. Seas 2 to 3 ft. Wave Detail: SE 3 ft at 8 seconds and SW 1 foot at 3 seconds. Patchy fog in the morning with vsby 1 to 3 NM. .MON NIGHT...SW winds 10 to 15 kt. Gusts up to 20 kt in the evening. Seas 2 to 3 ft. Wave Detail: S 3 ft at 6 seconds and SW 2 ft at 3 seconds. Patchy fog. .TUE...SW winds 10 to 15 kt. Gusts up to 20 kt in the afternoon. Seas 2 to 3 ft. Wave Detail: SW 2 ft at 3 seconds and SE 2 ft at 8 seconds. .TUE NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. Wave Detail: SE 3 ft at 7 seconds and SW 2 ft at 4 seconds. .WED...SW winds 10 to 15 kt. Gusts up to 20 kt in the afternoon. Seas 2 to 4 ft. Wave Detail: SW 2 ft at 3 seconds and SE 2 ft at 8 seconds. A chance of showers in the afternoon. .WED NIGHT...SW winds 10 to 15 kt. Gusts up to 20 kt in the evening. Seas 2 to 4 ft. Showers likely. .THU...W winds 5 to 10 kt. Seas 2 to 3 ft. A chance of showers. .THU NIGHT...NW winds 5 to 10 kt. Seas 2 to 3 ft. A chance of showers. .FRI AND FRI NIGHT...N winds 5 to 10 kt, becoming SW. Seas around 2 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ251-151800- Massachusetts Bay and Ipswich Bay- 104 AM EDT Mon Jul 15 2024 .REST OF TONIGHT...SW winds 5 to 10 kt. Seas around 2 ft. Wave Detail: SE 2 ft at 8 seconds and SW 1 foot at 2 seconds. .MON...S winds 5 to 10 kt. Gusts up to 20 kt in the afternoon. Seas 1 foot or less, then around 2 ft in the afternoon. Wave Detail: SW 1 foot at 2 seconds and SE 1 foot at 8 seconds, becoming SE 2 ft at 8 seconds and SW 1 foot at 2 seconds. .MON NIGHT...SW winds 5 to 10 kt. Seas around 2 ft. Wave Detail: S 2 ft at 4 seconds. .TUE...SW winds 5 to 10 kt, increasing to 10 to 15 kt with gusts up to 20 kt in the afternoon. Seas around 2 ft. Wave Detail: SE 2 ft at 6 seconds and SW 1 foot at 2 seconds. .TUE NIGHT...SW winds 10 to 15 kt. Gusts up to 20 kt in the evening. Seas around 2 ft. Wave Detail: SE 2 ft at 6 seconds and SW 1 foot at 3 seconds. .WED...SW winds 10 to 15 kt. Gusts up to 20 kt in the afternoon. Seas around 2 ft. Wave Detail: SE 2 ft at 6 seconds and SW 1 foot at 3 seconds. A chance of showers in the afternoon. .WED NIGHT...SW winds 5 to 10 kt. Seas around 2 ft. Showers likely. .THU...W winds 5 to 10 kt. Seas around 2 ft. A chance of showers. .THU NIGHT...NW winds 5 to 10 kt. Seas 1 foot or less. A chance of showers. .FRI AND FRI NIGHT...NE winds 5 to 10 kt, becoming SW. Seas 1 foot or less. 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. $$ ANZ231-151800- Cape Cod Bay- 104 AM EDT Mon Jul 15 2024 .REST OF TONIGHT...SW winds 5 to 10 kt. Seas 1 foot or less. Wave Detail: SW 1 foot at 2 seconds and SE 1 foot at 7 seconds. .MON...SW winds 5 to 10 kt, increasing to 10 to 15 kt with gusts up to 20 kt in the afternoon. Seas 1 foot or less, then around 2 ft in the afternoon. Wave Detail: SW 1 foot at 2 seconds and SE 1 foot at 7 seconds, becoming SW 1 foot at 3 seconds and S 1 foot at 8 seconds. .MON NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt, diminishing to 5 to 10 kt after midnight. Seas around 2 ft. Wave Detail: SW 1 foot at 3 seconds and S 1 foot at 7 seconds. Patchy fog in the evening. .TUE...SW winds 10 to 15 kt. Gusts up to 20 kt in the afternoon. Seas around 2 ft. Wave Detail: SW 2 ft at 3 seconds and S 2 ft at 7 seconds. .TUE NIGHT AND WED...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Wave Detail: SW 2 ft at 3 seconds and S 2 ft at 7 seconds. .WED NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt, diminishing to 5 to 10 kt after midnight. Seas 2 to 3 ft. Wave Detail: S 2 ft at 7 seconds and SW 1 foot at 3 seconds. Showers likely. .THU...W winds 5 to 10 kt. Seas around 2 ft. Showers likely. .THU NIGHT...NW winds 5 to 10 kt. Seas around 2 ft. A chance of showers. .FRI AND FRI NIGHT...N winds around 5 kt, becoming SW. Seas around 2 ft, then 1 foot or less. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ254-151800- Coastal waters from Provincetown MA to Chatham MA to Nantucket MA out 20 nm- 104 AM EDT Mon Jul 15 2024 .REST OF TONIGHT...SW winds around 10 kt. Seas 2 to 3 ft. Wave Detail: S 3 ft at 7 seconds and SW 1 foot at 2 seconds. .MON...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Wave Detail: S 3 ft at 7 seconds and SW 1 foot at 3 seconds. Patchy fog. Vsby 1 NM or less, increasing to 1 to 3 NM in the afternoon. .MON NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. Wave Detail: S 3 ft at 7 seconds and W 1 foot at 3 seconds. Patchy fog. .TUE...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. Wave Detail: S 4 ft at 7 seconds and W 1 foot at 3 seconds. .TUE NIGHT AND WED...SW winds 15 to 20 kt. Seas 3 to 5 ft. Wave Detail: S 4 ft at 7 seconds and W 1 foot at 4 seconds. .WED NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 5 ft. Wave Detail: S 5 ft at 8 seconds and W 1 foot at 3 seconds. A chance of showers in the evening. Showers likely after midnight. .THU...SW winds around 10 kt. Seas 3 to 5 ft. Showers likely. .THU NIGHT...W winds 5 to 10 kt. Seas 3 to 5 ft. A chance of showers. .FRI AND FRI NIGHT...N winds 5 to 10 kt, becoming SW. 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. $$ ANZ255-151800- Coastal Waters extending out to 25 nm South of Marthas Vineyard and Nantucket- 104 AM EDT Mon Jul 15 2024 .REST OF TONIGHT...SW winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: S 3 ft at 7 seconds. .MON...SW winds 10 to 15 kt. Gusts up to 20 kt in the afternoon. Seas 2 to 3 ft. Wave Detail: S 3 ft at 7 seconds. Patchy fog. Vsby 1 NM or less, increasing to 1 to 3 NM in the afternoon. .MON NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 4 ft. Wave Detail: S 4 ft at 7 seconds and SW 1 foot at 3 seconds. A chance of showers in the evening. Patchy fog after midnight. .TUE...SW winds 10 to 15 kt, increasing to 15 to 20 kt in the afternoon. Seas 3 to 4 ft. Wave Detail: S 4 ft at 7 seconds and SW 1 foot at 4 seconds. .TUE NIGHT AND WED...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 4 to 5 ft. Wave Detail: S 5 ft at 7 seconds and SW 1 foot at 4 seconds. .WED NIGHT...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 4 to 6 ft. Wave Detail: S 6 ft at 8 seconds and SW 1 foot at 3 seconds. A chance of showers in the evening. Showers likely after midnight. .THU...W winds 10 to 15 kt. Seas 4 to 6 ft. Showers likely. .THU NIGHT...W winds around 10 kt. Seas 4 to 6 ft. A chance of showers. .FRI AND FRI NIGHT...NE winds around 10 kt, becoming SW. Seas 3 to 5 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ256-151800- Coastal Waters from Montauk NY to Marthas Vineyard extending out to 20 nm South of Block Island- 104 AM EDT Mon Jul 15 2024 .REST OF TONIGHT...SW winds 5 to 10 kt. Seas 3 to 4 ft. Wave Detail: S 3 ft at 7 seconds. .MON...SW winds 10 to 15 kt. Gusts up to 20 kt in the afternoon. Seas 3 to 4 ft. Wave Detail: S 3 ft at 7 seconds. Patchy fog. Vsby 1 NM or less, increasing to 1 to 3 NM in the afternoon. .MON NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 4 ft. Wave Detail: S 4 ft at 8 seconds. Patchy fog. .TUE...SW winds 10 to 15 kt, increasing to 15 to 20 kt with gusts up to 25 kt in the afternoon. Seas 3 to 4 ft. Wave Detail: S 4 ft at 7 seconds. .TUE NIGHT AND WED...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 4 to 6 ft. Wave Detail: S 5 ft at 7 seconds and SW 1 foot at 3 seconds. .WED NIGHT...SW winds 15 to 20 kt, diminishing to 10 to 15 kt after midnight. Gusts up to 25 kt. Seas 5 to 6 ft. Wave Detail: S 6 ft at 8 seconds. Showers likely. .THU...W winds 10 to 15 kt. Seas 5 to 6 ft. Showers likely. .THU NIGHT...W winds around 10 kt. Seas 4 to 5 ft. A chance of showers. .FRI AND FRI NIGHT...NE winds 5 to 10 kt, becoming SW. Seas 3 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. $$ ANZ232-151800- Nantucket Sound- 104 AM EDT Mon Jul 15 2024 .REST OF TONIGHT...SW winds around 10 kt. Seas around 2 ft. Wave Detail: SW 1 foot at 2 seconds and S 1 foot at 7 seconds. .MON...SW winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft. Wave Detail: SW 2 ft at 3 seconds and S 1 foot at 7 seconds. Patchy fog in the morning with vsby 1 NM or less. .MON NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft. Wave Detail: SW 2 ft at 3 seconds and S 2 ft at 7 seconds. Patchy fog after midnight. .TUE...SW winds 10 to 15 kt, increasing to 15 to 20 kt in the afternoon. Gusts up to 25 kt. Seas 2 to 3 ft. Wave Detail: SW 3 ft at 4 seconds and S 2 ft at 7 seconds. .TUE NIGHT AND WED...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 3 ft. Wave Detail: SW 3 ft at 4 seconds and S 2 ft at 7 seconds. .WED NIGHT...SW winds 15 to 20 kt, diminishing to 10 to 15 kt after midnight. Gusts up to 25 kt. Seas 2 to 4 ft. Wave Detail: SW 2 ft at 4 seconds and S 2 ft at 8 seconds. A chance of showers in the evening. Showers likely after midnight. .THU...W winds 10 to 15 kt. Seas 2 to 3 ft. Showers likely. .THU NIGHT...W winds around 10 kt. Seas 2 to 3 ft. A chance of showers. .FRI AND FRI NIGHT...NE winds around 10 kt, becoming SW. Seas around 2 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ233-151800- Vineyard Sound- 104 AM EDT Mon Jul 15 2024 .REST OF TONIGHT...SW winds 5 to 10 kt. Seas around 2 ft. Wave Detail: S 2 ft at 7 seconds and SW 1 foot at 2 seconds. .MON...SW winds 10 to 15 kt. Gusts up to 20 kt in the afternoon. Seas 2 to 3 ft. Wave Detail: S 2 ft at 7 seconds and SW 1 foot at 3 seconds. Patchy fog. Vsby 1 NM or less, increasing to 1 to 3 NM in the afternoon. .MON NIGHT...SW winds around 10 kt. Gusts up to 20 kt in the evening. Seas 2 to 3 ft. Wave Detail: S 3 ft at 7 seconds and SW 1 foot at 4 seconds. Patchy fog. .TUE...SW winds 10 to 15 kt. Gusts up to 20 kt in the afternoon. Seas 2 to 3 ft. Wave Detail: SW 3 ft at 5 seconds. .TUE NIGHT AND WED...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 4 ft. Wave Detail: S 4 ft at 7 seconds and SW 2 ft at 4 seconds. .WED NIGHT...SW winds 10 to 15 kt. Gusts up to 20 kt in the evening. Seas 3 to 4 ft. Wave Detail: S 4 ft at 8 seconds and SW 2 ft at 4 seconds. Showers likely. .THU...W winds around 10 kt. Seas 2 to 4 ft. Showers likely. .THU NIGHT...W winds 5 to 10 kt. Seas 2 to 3 ft. A chance of showers. .FRI AND FRI NIGHT...NE winds 5 to 10 kt, becoming SW. 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. $$ ANZ234-151800- Buzzards Bay- 104 AM EDT Mon Jul 15 2024 .REST OF TONIGHT...SW winds 5 to 10 kt. Seas around 2 ft. Wave Detail: SW 1 foot at 2 seconds and S 1 foot at 7 seconds. .MON...SW winds 10 to 15 kt. Gusts up to 20 kt in the afternoon. Seas around 2 ft. Wave Detail: S 2 ft at 7 seconds and SW 1 foot at 3 seconds. Patchy fog in the morning with vsby 1 NM or less. .MON NIGHT...SW winds 10 to 15 kt. Gusts up to 20 kt in the evening. Seas 2 to 3 ft. Wave Detail: S 2 ft at 7 seconds and SW 1 foot at 4 seconds. Patchy fog. .TUE...SW winds 10 to 15 kt, increasing to 15 to 20 kt in the afternoon. Gusts up to 25 kt. Seas 2 to 4 ft. Wave Detail: SW 2 ft at 5 seconds. .TUE NIGHT...SW winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 4 ft. Wave Detail: SW 3 ft at 5 seconds. .WED...SW winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 4 ft. Wave Detail: SW 3 ft at 7 seconds and SW 2 ft at 3 seconds. A chance of showers in the afternoon. .WED NIGHT...SW winds 10 to 15 kt. Gusts up to 20 kt in the evening. Seas 2 to 4 ft. Showers likely. .THU...W winds around 10 kt. Seas 2 to 3 ft. Showers likely. .THU NIGHT...NW winds 5 to 10 kt. Seas 2 to 3 ft. A chance of showers. .FRI AND FRI NIGHT...NE winds 5 to 10 kt, becoming SW. Seas around 2 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ235-151800- Rhode Island Sound- 104 AM EDT Mon Jul 15 2024 .REST OF TONIGHT...SW winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: S 3 ft at 7 seconds. .MON...SW winds 10 to 15 kt. Gusts up to 20 kt in the afternoon. Seas 2 to 3 ft. Wave Detail: S 3 ft at 7 seconds and SW 1 foot at 3 seconds. Patchy fog. Vsby 1 NM or less, increasing to 1 to 3 NM in the afternoon. .MON NIGHT...SW winds 10 to 15 kt. Gusts up to 20 kt in the evening. Seas 2 to 3 ft. Wave Detail: S 3 ft at 8 seconds and SW 1 foot at 3 seconds. Patchy fog. A chance of showers in the evening. .TUE...SW winds 10 to 15 kt, increasing to 15 to 20 kt in the afternoon. Seas 2 to 4 ft. Wave Detail: S 4 ft at 7 seconds and SW 1 foot at 3 seconds. .TUE NIGHT...SW winds 15 to 20 kt. Seas 3 to 4 ft. Wave Detail: S 4 ft at 7 seconds and SW 1 foot at 4 seconds. .WED...SW winds around 15 kt with gusts up to 20 kt. Seas 3 to 5 ft. Wave Detail: S 5 ft at 7 seconds and SW 1 foot at 3 seconds. A chance of showers in the afternoon. .WED NIGHT...SW winds 10 to 15 kt. Gusts up to 20 kt in the evening. Seas 4 to 5 ft. Showers likely. .THU...W winds around 10 kt. Seas 4 to 5 ft. Showers likely. .THU NIGHT...NW winds 5 to 10 kt. Seas 3 to 4 ft. A chance of showers. .FRI AND FRI NIGHT...NE winds 5 to 10 kt, becoming SW. 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. $$ ANZ237-151800- Block Island Sound- 104 AM EDT Mon Jul 15 2024 .REST OF TONIGHT...SW winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: S 3 ft at 7 seconds. .MON...SW winds 5 to 10 kt. Gusts up to 20 kt in the afternoon. Seas 2 to 3 ft. Wave Detail: S 3 ft at 7 seconds and SW 1 foot at 3 seconds. Patchy fog. Vsby 1 to 3 NM. .MON NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt, diminishing to 5 to 10 kt after midnight. Seas 2 to 3 ft. Wave Detail: S 3 ft at 8 seconds and SW 1 foot at 3 seconds. Patchy fog. A chance of showers in the evening. .TUE...SW winds 10 to 15 kt. Gusts up to 20 kt in the afternoon. Seas 2 to 3 ft. Wave Detail: S 3 ft at 7 seconds and SW 1 foot at 3 seconds. .TUE NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 4 ft. Wave Detail: S 4 ft at 7 seconds and W 1 foot at 4 seconds. .WED...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 4 ft. Wave Detail: S 4 ft at 7 seconds and W 1 foot at 3 seconds. A chance of showers in the afternoon. .WED NIGHT...SW winds 10 to 15 kt. Gusts up to 20 kt in the evening. Seas 3 to 5 ft. Showers likely. .THU...W winds around 10 kt. Seas 3 to 4 ft. A chance of showers. .THU NIGHT...NW winds 5 to 10 kt. Seas 2 to 4 ft. A chance of showers. .FRI AND FRI NIGHT...NE winds 5 to 10 kt, becoming SW. Seas 2 to 3 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ230-151800- Boston Harbor- 104 AM EDT Mon Jul 15 2024 .REST OF TONIGHT...SW winds 5 to 10 kt. Waves 1 foot or less. .MON...SW winds 5 to 10 kt. Waves 1 foot or less. A chance of showers in the afternoon. .MON NIGHT...SW winds 5 to 10 kt. Waves 1 foot or less. A chance of showers in the evening. .TUE...SW winds 5 to 10 kt, increasing to 10 to 15 kt with gusts up to 20 kt in the afternoon. Waves 1 foot or less. .TUE NIGHT...SW winds 10 to 15 kt. Gusts up to 20 kt in the evening. Waves 1 foot or less. .WED...SW winds 10 to 15 kt. Waves 1 foot or less. A chance of showers in the afternoon. .WED NIGHT...SW winds 5 to 10 kt. Waves 1 foot or less. Showers likely. .THU...W winds 5 to 10 kt. Waves 1 foot or less. A chance of showers. .THU NIGHT...NW winds 5 to 10 kt. Waves 1 foot or less. A chance of showers. .FRI AND FRI NIGHT...NE winds around 5 kt, becoming SW. Waves 1 foot or less. 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. $$ ANZ236-151800- Narragansett Bay- 104 AM EDT Mon Jul 15 2024 .REST OF TONIGHT...SW winds 5 to 10 kt. Waves around 2 ft. .MON...SW winds 5 to 10 kt. Gusts up to 20 kt in the afternoon. Waves 2 to 3 ft. .MON NIGHT...SW winds 5 to 10 kt. Waves 2 to 3 ft. A chance of showers in the evening. .TUE...SW winds 5 to 10 kt, increasing to 10 to 15 kt with gusts up to 20 kt in the afternoon. Waves 2 to 3 ft. .TUE NIGHT...SW winds 10 to 15 kt. Gusts up to 20 kt in the evening. Waves 2 to 4 ft. .WED...SW winds 10 to 15 kt. Gusts up to 20 kt in the afternoon. Waves 2 to 4 ft. A chance of showers in the afternoon. .WED NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt, becoming W 5 to 10 kt after midnight. Waves 2 to 4 ft. Showers likely. .THU...W winds 5 to 10 kt. Waves 2 to 4 ft. A chance of showers. .THU NIGHT...NW winds 5 to 10 kt. Waves 2 to 4 ft. A chance of showers. .FRI AND FRI NIGHT...N winds 5 to 10 kt, becoming SW. Waves 2 to 3 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ 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