Coastal Waters Forecast
Issued by NWS Boston, MA

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000 FZUS51 KBOX 051600 CWFBOX Coastal Waters Forecast National Weather Service Taunton MA 1100 AM EST Tue Dec 5 2017 Coastal waters from the Merrimack River MA to Watch Hill RI out to 25 NM ANZ200-060445- 1100 AM EST Tue Dec 5 2017 .Synopsis for Massachusetts and Rhode Island coastal waters... Warm front will push across the waters today as a cold front will pass through tonight into the Wed morning hours. Conditions ahead of the cold front will feature rain, strong gusty winds out of the SSW and rough seas. High pressure builds south of the waters on Thursday. Low pressure will move to the southeast of the waters on Friday and again 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. $$ ANZ250-060445- Coastal waters east of Ipswich Bay and the Stellwagen Bank National Marine Sanctuary- 1100 AM EST Tue Dec 5 2017 ...GALE WARNING IN EFFECT FROM 4 PM EST THIS AFTERNOON THROUGH WEDNESDAY MORNING... .THIS AFTERNOON...S winds 15 to 20 kt with gusts up to 25 kt, increasing to 20 to 25 kt with gusts up to 35 kt. Seas 4 to 7 ft. A slight chance of showers with vsby 1 to 3 NM. .TONIGHT...S winds 25 to 30 kt with gusts up to 45 kt. Seas 7 to 10 ft. Showers. Vsby 1 to 3 NM. .WED...W winds 15 to 20 kt with gusts up to 30 kt, diminishing to 10 to 15 kt with gusts up to 20 kt in the afternoon. Seas 5 to 8 ft. A chance of showers. Vsby 1 to 3 NM. .WED NIGHT...W winds 10 to 15 kt with gusts up to 25 kt. Seas 3 to 5 ft. .THU...W winds 10 to 15 kt with gusts up to 25 kt. Seas 3 to 5 ft. .THU NIGHT...W winds 10 to 15 kt, diminishing to 5 to 10 kt after midnight. Gusts up to 20 kt. Seas 2 to 4 ft. .FRI...W winds 5 to 10 kt with gusts up to 20 kt. Seas 2 to 3 ft. A chance of showers. .FRI NIGHT...W winds 5 to 10 kt with gusts up to 20 kt. Seas 2 to 3 ft. A chance of showers. .SAT...W winds 5 to 10 kt. Seas 2 to 4 ft. A chance of showers. .SAT NIGHT...W winds 5 to 10 kt with gusts up to 20 kt. Seas 2 to 4 ft. A chance of showers. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ251-060445- Massachusetts Bay and Ipswich Bay- 1100 AM EST Tue Dec 5 2017 ...GALE WARNING IN EFFECT FROM 4 PM EST THIS AFTERNOON THROUGH WEDNESDAY MORNING... .THIS AFTERNOON...S winds 15 to 20 kt, increasing to 20 to 25 kt. Gusts up to 30 kt. Seas 3 to 5 ft. A chance of showers with vsby 1 to 3 NM. .TONIGHT...S winds 20 to 25 kt with gusts up to 40 kt. Seas 4 to 7 ft. Showers. Vsby 1 to 3 NM. .WED...W winds 10 to 15 kt with gusts up to 25 kt. Seas 3 to 5 ft. .WED NIGHT...W winds 10 to 15 kt, diminishing to 5 to 10 kt after midnight. Gusts up to 20 kt. Seas 2 to 4 ft. .THU...W winds 5 to 10 kt with gusts up to 20 kt. Seas 2 to 3 ft. .THU NIGHT...W winds 5 to 10 kt with gusts up to 20 kt. Seas 2 to 3 ft. .FRI...W winds 5 to 10 kt with gusts up to 20 kt. Seas around 2 ft. A chance of showers. .FRI NIGHT...W winds 5 to 10 kt. Seas around 2 ft. A chance of rain and snow showers. Vsby 1 to 3 NM. .SAT...W winds around 5 kt. Seas 2 to 3 ft. A chance of showers. .SAT NIGHT...W winds 5 to 10 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. $$ ANZ231-060445- Cape Cod Bay- 1100 AM EST Tue Dec 5 2017 ...GALE WARNING IN EFFECT FROM 4 PM EST THIS AFTERNOON THROUGH WEDNESDAY MORNING... .THIS AFTERNOON...S winds 10 to 15 kt, increasing to 15 to 20 kt. Gusts up to 30 kt. Seas 2 to 3 ft. A slight chance of showers. .TONIGHT...S winds 20 to 25 kt with gusts up to 40 kt. Seas 4 to 6 ft. Showers. Vsby 1 to 3 NM. .WED...W winds 10 to 15 kt with gusts up to 25 kt, diminishing to 5 to 10 kt in the afternoon. Seas 2 to 4 ft. A chance of showers. .WED NIGHT...W winds 5 to 10 kt with gusts up to 20 kt. Seas around 2 ft. .THU...W winds 5 to 10 kt with gusts up to 20 kt. Seas around 2 ft. .THU NIGHT...W winds 5 to 10 kt with gusts up to 20 kt. Seas around 2 ft. .FRI...W winds 5 to 10 kt with gusts up to 20 kt. Seas 1 foot or less. A chance of showers. .FRI NIGHT...NW winds 5 to 10 kt. Seas 1 foot or less. Showers likely. .SAT...W winds around 5 kt. Seas 1 foot or less. A chance of showers. .SAT NIGHT...NW winds 5 to 10 kt with gusts up to 20 kt. Seas around 2 ft. A chance of showers. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ254-060445- Coastal waters from Provincetown MA to Chatham MA to Nantucket MA out 20 nm- 1100 AM EST Tue Dec 5 2017 ...GALE WARNING IN EFFECT FROM 7 PM EST THIS EVENING THROUGH WEDNESDAY MORNING... .THIS AFTERNOON...S winds 15 to 20 kt. Gusts up to 20 kt, increasing to 30 kt. Seas 4 to 7 ft. .TONIGHT...S winds 20 to 25 kt with gusts up to 40 kt. Seas 7 to 10 ft. Showers. Vsby 1 to 3 NM. .WED...SW winds 15 to 20 kt with gusts up to 35 kt, becoming W 10 to 15 kt with gusts up to 25 kt in the afternoon. Seas 6 to 9 ft. Showers. Vsby 1 to 3 NM. .WED NIGHT...W winds 5 to 10 kt with gusts up to 20 kt. Seas 4 to 6 ft. .THU...W winds 5 to 10 kt, increasing to 10 to 15 kt in the afternoon. Gusts up to 25 kt. Seas 3 to 5 ft. .THU NIGHT...W winds 10 to 15 kt, diminishing to 5 to 10 kt after midnight. Gusts up to 25 kt. Seas 3 to 5 ft. .FRI...W winds 5 to 10 kt with gusts up to 20 kt. Seas 2 to 4 ft. A chance of showers. .FRI NIGHT...NW winds 5 to 10 kt with gusts up to 20 kt. Seas 2 to 4 ft. Showers likely. .SAT...NW winds around 5 kt. Seas 3 to 5 ft. A chance of showers. .SAT NIGHT...NW winds 5 to 10 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. $$ ANZ255-060445- Coastal Waters extending out to 25 nm South of Marthas Vineyard and Nantucket- 1100 AM EST Tue Dec 5 2017 ...GALE WARNING IN EFFECT FROM 7 PM EST THIS EVENING THROUGH WEDNESDAY MORNING... .THIS AFTERNOON...S winds 15 to 20 kt. Gusts up to 20 kt, increasing to 30 kt. Seas 4 to 7 ft. .TONIGHT...S winds 20 to 25 kt with gusts up to 40 kt. Seas 7 to 10 ft. Showers. Vsby 1 to 3 NM. .WED...W winds 15 to 20 kt. Gusts up to 35 kt, decreasing to 25 kt in the afternoon. Seas 7 to 10 ft. Showers. Vsby 1 to 3 NM. .WED NIGHT...W winds 10 to 15 kt with gusts up to 25 kt. Seas 4 to 7 ft. .THU...W winds 10 to 15 kt with gusts up to 25 kt. Seas 4 to 6 ft. .THU NIGHT...W winds 10 to 15 kt, diminishing to 5 to 10 kt after midnight. Gusts up to 25 kt. Seas 4 to 6 ft. .FRI...W winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. A chance of showers. .FRI NIGHT...NW winds 5 to 10 kt with gusts up to 20 kt. Seas 2 to 4 ft. Showers likely. .SAT...NW winds 5 to 10 kt. Seas 3 to 5 ft. A chance of showers. .SAT NIGHT...NW winds 5 to 10 kt with gusts up to 20 kt. Seas 3 to 5 ft. A chance of showers. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ256-060445- Coastal Waters from Montauk NY to Marthas Vineyard extending out to 20 nm South of Block Island- 1100 AM EST Tue Dec 5 2017 ...GALE WARNING IN EFFECT FROM 7 PM EST THIS EVENING THROUGH WEDNESDAY MORNING... .THIS AFTERNOON...S winds 15 to 20 kt, increasing to 20 to 25 kt. Gusts up to 30 kt. Seas 4 to 7 ft. A slight chance of showers. .TONIGHT...S winds 20 to 25 kt, becoming SW 25 to 30 kt after midnight. Gusts up to 40 kt. Seas 8 to 11 ft. Showers. Vsby 1 to 3 NM. .WED...W winds 15 to 20 kt with gusts up to 30 kt. Seas 7 to 10 ft. A chance of showers. .WED NIGHT...W winds 10 to 15 kt with gusts up to 25 kt. Seas 4 to 7 ft. .THU...W winds 10 to 15 kt with gusts up to 25 kt. Seas 4 to 6 ft. .THU NIGHT...W winds 10 to 15 kt with gusts up to 25 kt. Seas 4 to 6 ft. .FRI...W winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 4 ft. A chance of showers. .FRI NIGHT...NW winds 5 to 10 kt with gusts up to 20 kt. Seas 2 to 3 ft. Showers likely. .SAT...NW winds 5 to 10 kt. Seas 3 to 5 ft. A chance of showers. .SAT NIGHT...NW winds 5 to 10 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. $$ ANZ232-060445- Nantucket Sound- 1100 AM EST Tue Dec 5 2017 ...GALE WARNING IN EFFECT FROM 7 PM EST THIS EVENING THROUGH WEDNESDAY MORNING... .THIS AFTERNOON...S winds 15 to 20 kt. Gusts up to 20 kt, increasing to 30 kt. Seas 2 to 4 ft. A slight chance of showers. .TONIGHT...S winds 20 to 25 kt with gusts up to 40 kt. Seas 4 to 6 ft. Showers. Vsby 1 to 3 NM. .WED...W winds 15 to 20 kt with gusts up to 30 kt, diminishing to 10 to 15 kt with gusts up to 20 kt in the afternoon. Seas 2 to 4 ft. A chance of showers. Vsby 1 to 3 NM. .WED NIGHT...W winds 5 to 10 kt with gusts up to 20 kt. Seas 2 to 3 ft. .THU...W winds 5 to 10 kt, increasing to 10 to 15 kt in the afternoon. Gusts up to 25 kt. Seas 2 to 4 ft. .THU NIGHT...W winds 10 to 15 kt, diminishing to 5 to 10 kt after midnight. Gusts up to 25 kt. Seas 2 to 4 ft. .FRI...W winds 5 to 10 kt with gusts up to 20 kt. Seas 2 to 3 ft. A chance of showers. .FRI NIGHT...NW winds 5 to 10 kt with gusts up to 20 kt. Seas around 2 ft. Showers likely. .SAT...NW winds around 5 kt. Seas around 2 ft. A chance of showers. .SAT NIGHT...NW winds 5 to 10 kt with gusts up to 20 kt. Seas 2 to 3 ft. A chance of showers. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ233-060445- Vineyard Sound- 1100 AM EST Tue Dec 5 2017 ...GALE WARNING IN EFFECT FROM 7 PM EST THIS EVENING THROUGH WEDNESDAY MORNING... .THIS AFTERNOON...S winds 15 to 20 kt with gusts up to 30 kt. Seas 2 to 4 ft. A chance of showers. .TONIGHT...S winds 20 to 25 kt with gusts up to 40 kt. Seas 4 to 7 ft. Showers. Vsby 1 to 3 NM. .WED...W winds 15 to 20 kt with gusts up to 30 kt, diminishing to 10 to 15 kt with gusts up to 20 kt in the afternoon. Seas 3 to 5 ft. A chance of showers. Vsby 1 to 3 NM. .WED NIGHT...W winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 4 ft. .THU...W winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 4 ft. .THU NIGHT...W winds 10 to 15 kt, becoming NW 5 to 10 kt after midnight. Gusts up to 25 kt. Seas 2 to 4 ft. .FRI...W winds 5 to 10 kt with gusts up to 20 kt. Seas 2 to 3 ft. A chance of showers. .FRI NIGHT...NW winds 5 to 10 kt with gusts up to 20 kt. Seas around 2 ft. Showers likely. .SAT...NW winds around 5 kt. Seas around 2 ft. A chance of showers. .SAT NIGHT...NW winds 5 to 10 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. $$ ANZ234-060445- Buzzards Bay- 1100 AM EST Tue Dec 5 2017 ...GALE WARNING IN EFFECT FROM 7 PM EST THIS EVENING THROUGH WEDNESDAY MORNING... .THIS AFTERNOON...S winds 10 to 15 kt, increasing to 15 to 20 kt. Gusts up to 30 kt. Seas 2 to 4 ft. A chance of showers. .TONIGHT...S winds 20 to 25 kt with gusts up to 40 kt. Seas 4 to 7 ft. Showers. Vsby 1 to 3 NM. .WED...W winds 10 to 15 kt. Gusts up to 25 kt in the morning. Seas 2 to 4 ft. .WED NIGHT...W winds 10 to 15 kt, diminishing to 5 to 10 kt after midnight. Gusts up to 20 kt. Seas 2 to 3 ft. .THU...W winds 5 to 10 kt, increasing to 10 to 15 kt in the afternoon. Gusts up to 25 kt. Seas 2 to 4 ft. .THU NIGHT...W winds 5 to 10 kt. Gusts up to 20 kt in the evening. Seas 2 to 3 ft. .FRI...W winds 5 to 10 kt with gusts up to 20 kt. Seas 2 to 3 ft. A chance of showers. .FRI NIGHT...NW winds 5 to 10 kt. Seas 1 foot or less. Showers likely with a chance of snow showers. Vsby 1 to 3 NM. .SAT...NW winds around 5 kt. Seas 1 foot or less. A chance of rain and snow showers. Vsby 1 to 3 NM. .SAT NIGHT...NW winds 5 to 10 kt with gusts up to 20 kt. Seas around 2 ft. A chance of showers. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ235-060445- Rhode Island Sound- 1100 AM EST Tue Dec 5 2017 ...GALE WARNING IN EFFECT FROM 7 PM EST THIS EVENING THROUGH WEDNESDAY MORNING... .THIS AFTERNOON...S winds 15 to 20 kt, increasing to 20 to 25 kt. Gusts up to 30 kt. Seas 4 to 6 ft. A chance of showers. .TONIGHT...S winds 20 to 25 kt, becoming SW 25 to 30 kt after midnight. Gusts up to 40 kt. Seas 7 to 10 ft. Showers. Vsby 1 to 3 NM. .WED...W winds 15 to 20 kt. Gusts up to 30 kt in the morning. Seas 5 to 8 ft. .WED NIGHT...W winds 10 to 15 kt with gusts up to 25 kt. Seas 4 to 6 ft. .THU...W winds 10 to 15 kt with gusts up to 25 kt. Seas 4 to 6 ft. .THU NIGHT...W winds 10 to 15 kt, diminishing to 5 to 10 kt after midnight. Gusts up to 25 kt. Seas 3 to 5 ft. .FRI...W winds 5 to 10 kt with gusts up to 20 kt. Seas 2 to 3 ft. A chance of showers. .FRI NIGHT...NW winds 5 to 10 kt with gusts up to 20 kt. Seas 2 to 3 ft. Showers likely. .SAT...NW winds 5 to 10 kt with gusts up to 20 kt. Seas 2 to 4 ft. A chance of showers. .SAT NIGHT...NW winds 5 to 10 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. $$ ANZ237-060445- Block Island Sound- 1100 AM EST Tue Dec 5 2017 ...GALE WARNING IN EFFECT FROM 7 PM EST THIS EVENING THROUGH WEDNESDAY MORNING... .THIS AFTERNOON...S winds 15 to 20 kt, increasing to 20 to 25 kt. Gusts up to 30 kt. Seas 4 to 7 ft. A chance of showers. .TONIGHT...S winds 20 to 25 kt with gusts up to 40 kt. Seas 6 to 9 ft. Showers. Vsby 1 to 3 NM. .WED...W winds 15 to 20 kt, diminishing to 10 to 15 kt in the afternoon. Gusts up to 25 kt. Seas 4 to 7 ft. Showers likely. .WED NIGHT...W winds 10 to 15 kt with gusts up to 25 kt. Seas 3 to 5 ft. .THU...W winds 10 to 15 kt with gusts up to 25 kt. Seas 3 to 5 ft. .THU NIGHT...W winds 10 to 15 kt, diminishing to 5 to 10 kt after midnight. Gusts up to 25 kt. Seas 3 to 5 ft. .FRI...W winds 5 to 10 kt with gusts up to 20 kt. Seas 2 to 3 ft. A chance of showers. .FRI NIGHT...NW winds 5 to 10 kt. Seas around 2 ft. Showers likely. .SAT...NW winds around 5 kt. Seas 2 to 4 ft. A chance of showers. .SAT NIGHT...NW winds 5 to 10 kt with gusts up to 20 kt. Seas 2 to 4 ft. A chance of showers. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ230-060445- Boston Harbor- 1100 AM EST Tue Dec 5 2017 ...GALE WARNING IN EFFECT FROM 7 PM EST THIS EVENING THROUGH LATE TONIGHT... .THIS AFTERNOON...SE winds 10 to 15 kt with gusts up to 20 kt, becoming S 15 to 20 kt with gusts up to 30 kt. Waves around 2 ft, except 3 to 5 ft at the outer harbor entrance. A chance of showers. .TONIGHT...S winds 15 to 20 kt with gusts up to 35 kt. Waves around 2 ft, except 3 to 5 ft at the outer harbor entrance. Showers. Vsby 1 to 3 NM. .WED...W winds 10 to 15 kt. Gusts up to 25 kt in the morning. Waves around 2 ft. A chance of showers. .WED NIGHT...W winds 5 to 10 kt. Gusts up to 20 kt in the evening. Waves around 2 ft. .THU...W winds 5 to 10 kt with gusts up to 20 kt. Waves around 2 ft. .THU NIGHT...W winds 5 to 10 kt. Waves around 2 ft. .FRI...SW winds around 5 kt. Waves 1 foot or less. A chance of showers. .FRI NIGHT...W winds around 5 kt. Waves 1 foot or less. A chance of snow showers. Vsby 1 to 3 NM. .SAT...W winds around 5 kt. Waves 1 foot or less. .SAT NIGHT...W winds around 5 kt. Waves 1 foot or less. A chance of snow and rain showers. Vsby 1 to 3 NM. 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. $$ ANZ236-060445- Narragansett Bay- 1100 AM EST Tue Dec 5 2017 ...GALE WARNING IN EFFECT FROM 7 PM EST THIS EVENING THROUGH LATE TONIGHT... .THIS AFTERNOON...S winds 10 to 15 kt, increasing to 15 to 20 kt. Gusts up to 30 kt. Waves 2 to 4 ft. A slight chance of showers, then a chance of showers. .TONIGHT...S winds 20 to 25 kt with gusts up to 40 kt. Waves 4 to 7 ft. Showers. Vsby 1 to 3 NM. .WED...W winds 10 to 15 kt. Gusts up to 25 kt in the morning. Waves 2 to 4 ft, except 4 to 7 ft at the bay entrance. Showers likely. .WED NIGHT...W winds 5 to 10 kt with gusts up to 20 kt. Waves 2 to 3 ft. .THU...W winds 5 to 10 kt with gusts up to 20 kt. Waves 2 to 3 ft. .THU NIGHT...W winds 5 to 10 kt. Gusts up to 20 kt in the evening. Waves 2 to 3 ft. .FRI...W winds 5 to 10 kt. Waves around 2 ft. A chance of showers. .FRI NIGHT...NW winds around 5 kt. Waves around 2 ft. Showers likely with a chance of snow showers. Vsby 1 to 3 NM. .SAT...NW winds around 5 kt. Waves 2 to 3 ft. A chance of rain and snow showers. Vsby 1 to 3 NM. .SAT NIGHT...NW winds 5 to 10 kt. Waves 2 to 3 ft. A chance of rain and snow showers. Vsby 1 to 3 NM. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ 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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