Coastal Waters Forecast
Issued by NWS Boston, MA

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000 FZUS51 KBOX 181217 CWFBOX Coastal Waters Forecast National Weather Service Taunton MA 717 AM EST Sat Nov 18 2017 COASTAL WATERS FROM THE MERRIMACK RIVER MA TO WATCH HILL RI OUT TO 25 NM ANZ200-190100- 717 AM EST Sat Nov 18 2017 .Synopsis for Massachusetts and Rhode Island coastal waters... High pressure over the waters this morning gives way to intensifying low pres tracking across the Saint Lawrence River Valley Sat night and Sun, with its attending strong cold front sweeping across the New England waters Sun afternoon. SSW gales ahead of the front and WNW gales behind the front Sun night into Monday. High pres then builds into the waters Tue followed by another cold front moving across New England Wed. 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. $$ ANZ250-190100- Coastal waters east of Ipswich Bay and the Stellwagen Bank National Marine Sanctuary- 717 AM EST Sat Nov 18 2017 ...GALE WARNING IN EFFECT FROM 7 PM EST THIS EVENING THROUGH LATE SUNDAY NIGHT... .TODAY...W winds 5 to 10 kt, becoming S 10 to 15 kt with gusts up to 25 kt this afternoon. Seas 2 to 4 ft. .TONIGHT...S winds 10 to 15 kt, increasing to 15 to 20 kt after midnight. Gusts up to 35 kt. Seas 4 to 7 ft. Patchy fog. Rain likely. Vsby 1 to 3 NM. .SUN...SW winds 20 to 25 kt with gusts up to 40 kt. Seas 5 to 8 ft. Patchy fog. Showers likely. Vsby 1 to 3 NM. .SUN NIGHT...W winds 25 to 30 kt, diminishing to 20 to 25 kt after midnight. Gusts up to 40 kt. Seas 5 to 8 ft. .MON...W winds 20 to 25 kt with gusts up to 40 kt. Seas 4 to 7 ft. .MON NIGHT...W winds 20 to 25 kt, diminishing to 15 to 20 kt after midnight. Gusts up to 35 kt. Seas 3 to 5 ft. .TUE...SW winds 15 to 20 kt with gusts up to 30 kt. Seas 3 to 5 ft. .TUE NIGHT...SW winds 15 to 20 kt with gusts up to 30 kt. Seas 3 to 5 ft. .WED...W winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. A chance of showers. .WED NIGHT...NW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ251-190100- Massachusetts Bay and Ipswich Bay- 717 AM EST Sat Nov 18 2017 ...GALE WARNING IN EFFECT FROM LATE TONIGHT THROUGH LATE SUNDAY NIGHT... .TODAY...SW winds 5 to 10 kt. Gusts up to 25 kt this afternoon. Seas 2 to 3 ft. .TONIGHT...S winds 10 to 15 kt, increasing to 15 to 20 kt after midnight. Gusts up to 35 kt. Seas 2 to 4 ft. Patchy fog. Rain likely. Vsby 1 to 3 NM. .SUN...SW winds 15 to 20 kt, becoming W 20 to 25 kt in the afternoon. Gusts up to 35 kt. Seas 3 to 5 ft. Patchy fog. Showers likely. Vsby 1 NM or less. .SUN NIGHT...W winds 20 to 25 kt with gusts up to 35 kt. Seas 3 to 5 ft. .MON...W winds 20 to 25 kt with gusts up to 30 kt. Seas 3 to 5 ft. .MON 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. .TUE...SW winds 10 to 15 kt with gusts up to 25 kt. Seas around 2 ft. .TUE NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. .WED...W winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft. A chance of showers. .WED 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. $$ ANZ231-190100- Cape Cod Bay- 717 AM EST Sat Nov 18 2017 ...GALE WARNING IN EFFECT FROM LATE TONIGHT THROUGH LATE SUNDAY NIGHT... .TODAY...SW winds 5 to 10 kt. Gusts up to 25 kt this afternoon. Seas 2 to 4 ft. .TONIGHT...S winds 10 to 15 kt, becoming SW 15 to 20 kt after midnight. Gusts up to 35 kt. Seas 3 to 5 ft. Rain likely. .SUN...SW winds 20 to 25 kt with gusts up to 40 kt. Seas 4 to 6 ft. Patchy fog. Showers likely. Vsby 1 to 3 NM. .SUN NIGHT...W winds 20 to 25 kt, diminishing to 15 to 20 kt after midnight. Gusts up to 35 kt. Seas 3 to 5 ft. .MON...W winds 20 to 25 kt with gusts up to 35 kt. Seas 3 to 5 ft. .MON NIGHT...W winds 15 to 20 kt with gusts up to 30 kt. Seas 2 to 4 ft. .TUE...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 4 ft. .TUE NIGHT...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 4 ft. .WED...W winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft. A chance of showers. .WED NIGHT...NW winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ254-190100- Coastal waters from Provincetown MA to Chatham MA to Nantucket MA out 20 nm- 717 AM EST Sat Nov 18 2017 ...GALE WARNING IN EFFECT FROM 7 PM EST THIS EVENING THROUGH LATE SUNDAY NIGHT... .TODAY...W winds 5 to 10 kt, becoming SW 10 to 15 kt with gusts up to 25 kt this afternoon. Seas 2 to 4 ft. .TONIGHT...S winds 10 to 15 kt, increasing to 15 to 20 kt after midnight. Gusts up to 30 kt. Seas 5 to 8 ft. A chance of rain. .SUN...SW winds 20 to 25 kt. Gusts up to 30 kt, increasing to 45 kt in the afternoon. Seas 7 to 10 ft, except 9 to 14 ft S and E of Nantucket. Patchy fog. Showers likely. Vsby 1 NM or less. .SUN NIGHT...W winds 20 to 25 kt with gusts up to 35 kt. Seas 6 to 9 ft. .MON...W winds 20 to 25 kt with gusts up to 35 kt. Seas 5 to 8 ft. .MON NIGHT...W winds 20 to 25 kt with gusts up to 35 kt. Seas 4 to 7 ft. .TUE...SW winds 15 to 20 kt with gusts up to 30 kt. Seas 3 to 5 ft. .TUE NIGHT...SW winds 15 to 20 kt with gusts up to 30 kt. Seas 4 to 6 ft. .WED...W winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 5 ft. A chance of showers. .WED NIGHT...N winds 10 to 15 kt with gusts up to 25 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. $$ ANZ255-190100- Coastal Waters extending out to 25 nm South of Marthas Vineyard and Nantucket- 717 AM EST Sat Nov 18 2017 ...GALE WARNING IN EFFECT FROM 3 PM EST THIS AFTERNOON THROUGH LATE SUNDAY NIGHT... .TODAY...W winds 5 to 10 kt with gusts up to 20 kt, becoming SW 10 to 15 kt with gusts up to 30 kt this afternoon. Seas 2 to 4 ft. .TONIGHT...SW winds 15 to 20 kt, increasing to 20 to 25 kt after midnight. Gusts up to 40 kt. Seas 7 to 10 ft. A chance of rain. .SUN...SW winds 20 to 25 kt, becoming W 25 to 30 kt in the afternoon. Gusts up to 45 kt. Seas 11 to 16 ft. Patchy fog. Showers likely. Vsby 1 NM or less. .SUN NIGHT...W winds 20 to 25 kt with gusts up to 35 kt. Seas 8 to 11 ft. .MON...W winds 20 to 25 kt with gusts up to 35 kt. Seas 7 to 10 ft. .MON NIGHT...W winds 20 to 25 kt, diminishing to 15 to 20 kt after midnight. Gusts up to 35 kt. Seas 5 to 8 ft. .TUE...SW winds 15 to 20 kt with gusts up to 30 kt. Seas 4 to 7 ft. .TUE NIGHT...SW winds 15 to 20 kt with gusts up to 30 kt. Seas 5 to 8 ft. .WED...W winds 10 to 15 kt with gusts up to 20 kt. Seas 4 to 7 ft. A chance of showers. .WED NIGHT...N winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 4 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ256-190100- Coastal Waters from Montauk NY to Marthas Vineyard extending out to 20 nm South of Block Island- 717 AM EST Sat Nov 18 2017 ...GALE WARNING IN EFFECT FROM 3 PM EST THIS AFTERNOON THROUGH LATE SUNDAY NIGHT... .TODAY...SW winds 10 to 15 kt with gusts up to 20 kt, increasing to 15 to 20 kt with gusts up to 30 kt this afternoon. Seas 3 to 5 ft. .TONIGHT...SW winds 20 to 25 kt with gusts up to 45 kt. Seas 8 to 11 ft. Rain likely. .SUN...SW winds 25 to 30 kt with gusts up to 45 kt. Seas 11 to 16 ft. Patchy fog. Showers likely. Vsby 1 to 3 NM. .SUN NIGHT...W winds 25 to 30 kt, diminishing to 20 to 25 kt after midnight. Gusts up to 40 kt. Seas 9 to 12 ft. .MON...W winds 20 to 25 kt with gusts up to 40 kt. Seas 7 to 10 ft. .MON NIGHT...W winds 20 to 25 kt, diminishing to 15 to 20 kt after midnight. Gusts up to 35 kt. Seas 5 to 8 ft. .TUE...SW winds 15 to 20 kt with gusts up to 30 kt. Seas 5 to 8 ft. .TUE NIGHT...SW winds 15 to 20 kt with gusts up to 30 kt. Seas 6 to 8 ft. .WED...W winds 10 to 15 kt with gusts up to 20 kt. Seas 4 to 7 ft. A chance of showers. .WED NIGHT...N winds around 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. $$ ANZ232-190100- Nantucket Sound- 717 AM EST Sat Nov 18 2017 ...GALE WARNING IN EFFECT FROM 5 PM EST THIS AFTERNOON THROUGH LATE SUNDAY NIGHT... .TODAY...W winds 5 to 10 kt with gusts up to 20 kt, becoming SW 10 to 15 kt with gusts up to 30 kt this afternoon. Seas 2 to 3 ft. .TONIGHT...S winds 15 to 20 kt, becoming SW 20 to 25 kt after midnight. Gusts up to 40 kt. Seas 3 to 5 ft. A chance of rain. .SUN...SW winds 20 to 25 kt with gusts up to 40 kt. Seas 4 to 6 ft. Patchy fog. Showers likely. Vsby 1 NM or less. .SUN NIGHT...W winds 20 to 25 kt with gusts up to 35 kt. Seas 3 to 5 ft. .MON...W winds 20 to 25 kt with gusts up to 35 kt. Seas 3 to 5 ft. .MON NIGHT...W winds 20 to 25 kt, diminishing to 15 to 20 kt after midnight. Gusts up to 30 kt. Seas 2 to 4 ft. .TUE...SW winds 15 to 20 kt with gusts up to 30 kt. Seas 2 to 4 ft. .TUE NIGHT...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 4 ft. .WED...W winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. A chance of showers. .WED NIGHT...N winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ233-190100- Vineyard Sound- 717 AM EST Sat Nov 18 2017 ...GALE WARNING IN EFFECT FROM 5 PM EST THIS AFTERNOON THROUGH LATE SUNDAY NIGHT... .TODAY...SW winds 5 to 10 kt with gusts up to 20 kt, increasing to 10 to 15 kt with gusts up to 30 kt this afternoon. Seas 2 to 4 ft. .TONIGHT...SW winds 15 to 20 kt, increasing to 20 to 25 kt after midnight. Gusts up to 40 kt. Seas 5 to 8 ft. Rain likely. .SUN...SW winds 20 to 25 kt with gusts up to 45 kt. Seas 6 to 9 ft. Patchy fog. Showers likely. Vsby 1 to 3 NM. .SUN NIGHT...W winds 20 to 25 kt with gusts up to 35 kt. Seas 4 to 6 ft. .MON...W winds 20 to 25 kt with gusts up to 35 kt. Seas 3 to 4 ft. .MON NIGHT...W winds 15 to 20 kt with gusts up to 30 kt. Seas 3 to 5 ft. .TUE...SW winds 15 to 20 kt with gusts up to 30 kt. Seas 3 to 5 ft. .TUE NIGHT...SW winds 15 to 20 kt with gusts up to 30 kt. Seas 3 to 5 ft. .WED...W winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. A chance of showers. .WED NIGHT...N 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. $$ ANZ234-190100- Buzzards Bay- 717 AM EST Sat Nov 18 2017 ...GALE WARNING IN EFFECT FROM 5 PM EST THIS AFTERNOON THROUGH LATE SUNDAY NIGHT... .TODAY...SW winds 5 to 10 kt with gusts up to 20 kt, increasing to 10 to 15 kt with gusts up to 30 kt this afternoon. Seas 2 to 4 ft. .TONIGHT...SW winds 15 to 20 kt, increasing to 20 to 25 kt after midnight. Gusts up to 40 kt. Seas 4 to 7 ft. Rain likely. .SUN...SW winds 20 to 25 kt with gusts up to 45 kt. Seas 4 to 7 ft. Patchy fog. Showers likely. Vsby 1 to 3 NM. .SUN NIGHT...W winds 15 to 20 kt with gusts up to 30 kt. Seas 2 to 4 ft. .MON...W winds 15 to 20 kt with gusts up to 30 kt. Seas 2 to 4 ft. .MON NIGHT...W winds 15 to 20 kt, diminishing to 10 to 15 kt after midnight. Gusts up to 30 kt. Seas 2 to 4 ft. .TUE...SW winds 15 to 20 kt with gusts up to 30 kt. Seas 2 to 4 ft. .TUE NIGHT...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 4 ft. A chance of showers. .WED...W winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. A chance of showers. .WED NIGHT...NW winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ235-190100- Rhode Island Sound- 717 AM EST Sat Nov 18 2017 ...GALE WARNING IN EFFECT FROM 3 PM EST THIS AFTERNOON THROUGH LATE SUNDAY NIGHT... .TODAY...SW winds 10 to 15 kt with gusts up to 20 kt, increasing to 15 to 20 kt with gusts up to 30 kt this afternoon. Seas 3 to 5 ft. .TONIGHT...SW winds 15 to 20 kt, increasing to 20 to 25 kt after midnight. Gusts up to 45 kt. Seas 7 to 10 ft. Rain likely. .SUN...SW winds 25 to 30 kt, becoming W 20 to 25 kt in the afternoon. Gusts up to 45 kt. Seas 9 to 14 ft. Patchy fog. Showers likely. Vsby 1 to 3 NM. .SUN NIGHT...W winds 20 to 25 kt with gusts up to 35 kt. Seas 6 to 9 ft. .MON...W winds 20 to 25 kt with gusts up to 35 kt. Seas 4 to 7 ft. .MON 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. .TUE...SW winds 15 to 20 kt with gusts up to 30 kt. Seas 3 to 5 ft. .TUE NIGHT...SW winds 15 to 20 kt with gusts up to 30 kt. Seas 4 to 6 ft. .WED...W winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 5 ft. A chance of showers. .WED NIGHT...N 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. $$ ANZ237-190100- Block Island Sound- 717 AM EST Sat Nov 18 2017 ...GALE WARNING IN EFFECT FROM 3 PM EST THIS AFTERNOON THROUGH LATE SUNDAY NIGHT... .TODAY...SW winds 5 to 10 kt with gusts up to 20 kt, increasing to 15 to 20 kt with gusts up to 30 kt this afternoon. Seas 3 to 5 ft. A slight chance of rain this afternoon. .TONIGHT...SW winds 15 to 20 kt, increasing to 20 to 25 kt after midnight. Gusts up to 45 kt. Seas 7 to 10 ft. Patchy fog. Rain likely. Vsby 1 to 3 NM. .SUN...W winds 20 to 25 kt with gusts up to 45 kt. Seas 8 to 11 ft. Patchy fog. Showers likely. Vsby 1 NM or less. .SUN NIGHT...W winds 20 to 25 kt with gusts up to 35 kt. Seas 5 to 8 ft. .MON...W winds 20 to 25 kt with gusts up to 35 kt. Seas 4 to 6 ft. .MON NIGHT...W winds 20 to 25 kt, diminishing to 15 to 20 kt after midnight. Gusts up to 30 kt. Seas 3 to 5 ft. .TUE...SW winds 15 to 20 kt with gusts up to 30 kt. Seas 3 to 5 ft. .TUE NIGHT...SW winds 15 to 20 kt with gusts up to 30 kt. Seas 4 to 6 ft. A chance of showers. .WED...W winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. A chance of showers. .WED NIGHT...N winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ230-190100- Boston Harbor- 717 AM EST Sat Nov 18 2017 ...GALE WARNING IN EFFECT FROM SUNDAY AFTERNOON THROUGH SUNDAY EVENING... .TODAY...SW winds 5 to 10 kt. Gusts up to 20 kt this afternoon. Waves around 2 ft. A slight chance of rain this afternoon. .TONIGHT...S winds 5 to 10 kt with gusts up to 30 kt. Waves around 2 ft. Patchy fog. Rain likely. Vsby 1 to 3 NM. .SUN...SW winds 10 to 15 kt, becoming W 15 to 20 kt in the afternoon. Gusts up to 35 kt. Waves around 2 ft. Patchy fog. Showers likely. Vsby 1 NM or less. .SUN NIGHT...W winds 15 to 20 kt with gusts up to 30 kt. Waves around 2 ft. .MON...W winds 15 to 20 kt with gusts up to 25 kt. Waves around 2 ft. .MON NIGHT...W winds 10 to 15 kt with gusts up to 25 kt. Waves around 2 ft. .TUE...SW winds around 10 kt with gusts up to 20 kt. Waves around 2 ft. .TUE NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Waves 1 foot or less. .WED...W winds 5 to 10 kt. Waves 1 foot or less. A chance of showers. .WED NIGHT...NW winds 5 to 10 kt. 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. $$ ANZ236-190100- Narragansett Bay- 717 AM EST Sat Nov 18 2017 ...GALE WARNING IN EFFECT FROM 7 PM EST THIS EVENING THROUGH SUNDAY EVENING... .TODAY...SW winds 5 to 10 kt with gusts up to 20 kt, increasing to 10 to 15 kt with gusts up to 30 kt this afternoon. Waves 2 to 4 ft. A slight chance of rain this afternoon. .TONIGHT...SW winds 10 to 15 kt, increasing to 15 to 20 kt after midnight. Gusts up to 40 kt. Waves 4 to 7 ft. Patchy fog. Rain likely. .SUN...SW winds 15 to 20 kt. Gusts up to 45 kt, decreasing to 35 kt in the afternoon. Waves 5 to 8 ft. Patchy fog. Showers likely. Vsby 1 to 3 NM. .SUN NIGHT...W winds 15 to 20 kt with gusts up to 30 kt. Waves 2 to 3 ft, except 4 to 7 ft at the bay entrance. .MON...W winds 15 to 20 kt with gusts up to 30 kt. Waves 2 to 3 ft. .MON NIGHT...W winds 10 to 15 kt with gusts up to 25 kt. Waves 2 to 3 ft. .TUE...SW winds 10 to 15 kt with gusts up to 25 kt. Waves 2 to 3 ft. .TUE NIGHT...SW winds 10 to 15 kt with gusts up to 25 kt. Waves 2 to 3 ft. A chance of showers. .WED...W winds 10 to 15 kt with gusts up to 20 kt. Waves 2 to 3 ft. A chance of showers. .WED NIGHT...NW winds around 10 kt with gusts up to 20 kt. Waves around 2 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ 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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