Coastal Waters Forecast
Issued by NWS Boston, MA

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000 FZUS51 KBOX 231509 CWFBOX Coastal Waters Forecast National Weather Service Taunton MA 1009 AM EST Tue Jan 23 2018 Coastal waters from the Merrimack River MA to Watch Hill RI out to 25 NM ANZ200-240415- 1009 AM EST Tue Jan 23 2018 .Synopsis for Massachusetts and Rhode Island coastal waters... A warm front passes N of the waters, rain will fall heavily at times with gusty south to southeast winds late tonight through today. A cold front will pass across the waters Wed as winds shift to W to NW. Winds will remain gusty Wed and Thu as large high pres builds toward the waters. The high will crest over the waters on Fri shifting east of the waters on 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. $$ ANZ250-240415- Coastal waters east of Ipswich Bay and the Stellwagen Bank National Marine Sanctuary- 1009 AM EST Tue Jan 23 2018 ...GALE WARNING IN EFFECT UNTIL 8 PM EST THIS EVENING... .THIS AFTERNOON...S winds 15 to 20 kt with gusts up to 25 kt, increasing to 20 to 25 kt with gusts up to 45 kt. Seas 6 to 9 ft. Areas of dense fog. Areas of fog. Rain. Isolated tstms. Vsby 1 NM or less. .TONIGHT...SW winds 20 to 25 kt, diminishing to 15 to 20 kt after midnight. Gusts up to 30 kt. Seas 5 to 8 ft. Areas of fog. A chance of showers. Vsby 1 NM or less. .WED...W winds 20 to 25 kt, diminishing to 15 to 20 kt in the afternoon. Gusts up to 30 kt. Seas 4 to 6 ft. .WED NIGHT...NW winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to 5 ft. .THU...NW winds 15 to 20 kt, increasing to 20 to 25 kt in the afternoon. Gusts up to 30 kt. Seas 3 to 5 ft. .THU NIGHT...NW winds 20 to 25 kt with gusts up to 30 kt. Seas 4 to 6 ft. .FRI...NW winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 4 ft. .FRI NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. .SAT...SW winds 20 to 25 kt with gusts up to 30 kt. Seas 2 to 4 ft. .SAT NIGHT...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to 5 ft. Winds and seas higher in and near tstms. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ251-240415- Massachusetts Bay and Ipswich Bay- 1009 AM EST Tue Jan 23 2018 ...GALE WARNING IN EFFECT UNTIL 6 PM EST THIS EVENING... .THIS AFTERNOON...S winds 10 to 15 kt with gusts up to 20 kt, increasing to 20 to 25 kt with gusts up to 45 kt. Seas 4 to 7 ft. Areas of dense fog. Areas of fog. Rain. Isolated tstms. Vsby 1 NM or less. .TONIGHT...SW winds 10 to 15 kt with gusts up to 30 kt. Seas 4 to 6 ft. Areas of fog. A chance of showers. Vsby 1 NM or less. .WED...W winds 15 to 20 kt with gusts up to 30 kt. Seas 3 to 5 ft. .WED NIGHT...NW winds 15 to 20 kt, diminishing to 10 to 15 kt after midnight. Gusts up to 25 kt. Seas around 2 ft. .THU...NW winds 15 to 20 kt with gusts up to 30 kt. Seas 2 to 3 ft. .THU NIGHT...NW winds 15 to 20 kt with gusts up to 30 kt. Seas 2 to 3 ft. .FRI...NW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. .FRI NIGHT...SW winds 10 to 15 kt. Seas around 2 ft. .SAT...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 3 ft. .SAT NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Winds and seas higher in and near tstms. 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. $$ ANZ231-240415- Cape Cod Bay- 1009 AM EST Tue Jan 23 2018 ...GALE WARNING IN EFFECT UNTIL 6 PM EST THIS EVENING... .THIS AFTERNOON...S winds 10 to 15 kt with gusts up to 25 kt, increasing to 15 to 20 kt with gusts up to 45 kt. Seas 3 to 5 ft. Areas of dense fog. Areas of fog. Rain. Isolated tstms with vsby 1 NM or less. .TONIGHT...SW winds 15 to 20 kt, diminishing to 10 to 15 kt after midnight. Gusts up to 30 kt. Seas 2 to 4 ft. Areas of fog. A chance of showers. Vsby 1 NM or less. .WED...W winds 15 to 20 kt with gusts up to 30 kt. Seas 2 to 4 ft. .WED NIGHT...NW winds 15 to 20 kt, diminishing to 10 to 15 kt after midnight. Gusts up to 25 kt. Seas 2 to 3 ft. .THU...NW winds 15 to 20 kt with gusts up to 30 kt. Seas 2 to 4 ft. .THU NIGHT...NW winds 15 to 20 kt with gusts up to 30 kt. Seas 2 to 4 ft. .FRI...NW winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 4 ft. .FRI NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft. .SAT...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 4 ft. .SAT NIGHT...SW winds 15 to 20 kt. Seas 2 to 3 ft. Winds and seas higher in and near tstms. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ254-240415- Coastal waters from Provincetown MA to Chatham MA to Nantucket MA out 20 nm- 1009 AM EST Tue Jan 23 2018 ...GALE WARNING IN EFFECT UNTIL 8 PM EST THIS EVENING... .THIS AFTERNOON...S winds 15 to 20 kt with gusts up to 25 kt, increasing to 20 to 25 kt with gusts up to 45 kt. Seas 6 to 9 ft. Areas of dense fog, then areas of fog. A chance of rain, then rain with isolated tstms with vsby 1 NM or less. .TONIGHT...SW winds 25 to 30 kt with gusts up to 40 kt, becoming W 15 to 20 kt with gusts up to 30 kt after midnight. Seas 6 to 9 ft. Areas of fog. A chance of showers. Vsby 1 NM or less. .WED...W winds 15 to 20 kt with gusts up to 35 kt. Seas 4 to 7 ft. .WED NIGHT...NW winds 15 to 20 kt with gusts up to 25 kt. Seas 4 to 6 ft. .THU...NW winds 15 to 20 kt, increasing to 20 to 25 kt in the afternoon. Gusts up to 30 kt. Seas 4 to 6 ft. .THU NIGHT...NW winds 20 to 25 kt with gusts up to 30 kt. Seas 4 to 7 ft. .FRI...NW winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to 5 ft. .FRI NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. .SAT...SW winds 20 to 25 kt with gusts up to 30 kt. Seas 2 to 4 ft. .SAT NIGHT...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to 5 ft. Winds and seas higher in and near tstms. 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. $$ ANZ255-240415- Coastal Waters extending out to 25 nm South of Marthas Vineyard and Nantucket- 1009 AM EST Tue Jan 23 2018 ...GALE WARNING IN EFFECT UNTIL 8 PM EST THIS EVENING... .THIS AFTERNOON...S winds around 15 kt with gusts up to 25 kt, increasing to 20 to 25 kt with gusts up to 45 kt. Seas 7 to 10 ft. Areas of dense fog, then areas of fog. A chance of rain, then rain with isolated tstms. Vsby 1 NM or less. .TONIGHT...SW winds 25 to 30 kt, becoming W 15 to 20 kt after midnight. Seas 9 to 12 ft. Areas of fog. A chance of showers. Vsby 1 NM or less. .WED...W winds 15 to 20 kt with gusts up to 35 kt. Seas 6 to 9 ft. .WED NIGHT...NW winds 15 to 20 kt, diminishing to 10 to 15 kt after midnight. Gusts up to 25 kt. Seas 4 to 7 ft. .THU...NW winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to 5 ft. .THU NIGHT...NW winds 15 to 20 kt with gusts up to 30 kt. Seas 4 to 6 ft. .FRI...NW winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 4 ft. .FRI NIGHT...SW winds 10 to 15 kt. Seas 2 to 3 ft. .SAT...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to 4 ft. .SAT NIGHT...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 4 to 5 ft. Winds and seas higher in and near tstms. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ256-240415- Coastal Waters from Montauk NY to Marthas Vineyard extending out to 20 nm South of Block Island- 1009 AM EST Tue Jan 23 2018 ...GALE WARNING IN EFFECT UNTIL 8 PM EST THIS EVENING... .THIS AFTERNOON...S winds 15 to 20 kt with gusts up to 25 kt, increasing to 20 to 25 kt with gusts up to 45 kt. Seas 8 to 11 ft. Areas of dense fog. Areas of fog. Rain. Isolated tstms. Vsby 1 NM or less. .TONIGHT...W winds 15 to 20 kt with gusts up to 35 kt. Seas 9 to 12 ft. Areas of fog. Vsby 1 NM or less. .WED...W winds 20 to 25 kt, diminishing to 15 to 20 kt in the afternoon. Gusts up to 30 kt. Seas 7 to 10 ft. .WED NIGHT...NW winds 15 to 20 kt with gusts up to 25 kt. Seas 4 to 7 ft. .THU...NW winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to 5 ft. .THU NIGHT...NW winds 20 to 25 kt, diminishing to 15 to 20 kt after midnight. Seas 3 to 5 ft. .FRI...NW winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 4 ft. .FRI NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. .SAT...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 4 to 6 ft. .SAT NIGHT...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 4 to 7 ft. Winds and seas higher in and near tstms. 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. $$ ANZ232-240415- Nantucket Sound- 1009 AM EST Tue Jan 23 2018 ...GALE WARNING IN EFFECT UNTIL 8 PM EST THIS EVENING... .THIS AFTERNOON...S winds 15 to 20 kt with gusts up to 25 kt, increasing to 20 to 25 kt with gusts up to 45 kt. Seas 4 to 6 ft. Areas of dense fog. Areas of fog. Rain. Isolated tstms. Vsby 1 NM or less. .TONIGHT...SW winds 20 to 25 kt, becoming W 15 to 20 kt after midnight. Gusts up to 35 kt. Seas 3 to 5 ft. Areas of fog. A chance of showers. Vsby 1 NM or less. .WED...W winds 15 to 20 kt with gusts up to 30 kt. Seas 3 to 5 ft. .WED NIGHT...NW winds 15 to 20 kt, diminishing to 10 to 15 kt after midnight. Seas 2 to 4 ft. .THU...NW winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 3 ft. .THU NIGHT...NW winds 15 to 20 kt with gusts up to 30 kt. Seas 2 to 4 ft. .FRI...NW winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 3 ft. .FRI NIGHT...SW winds 10 to 15 kt. Seas around 2 ft. .SAT...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 3 ft. .SAT NIGHT...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 3 ft. Winds and seas higher in and near tstms. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ233-240415- Vineyard Sound- 1009 AM EST Tue Jan 23 2018 ...GALE WARNING IN EFFECT UNTIL 8 PM EST THIS EVENING... .THIS AFTERNOON...S winds 15 to 20 kt. Gusts up to 25 kt, increasing to 45 kt. Seas 4 to 7 ft. Areas of dense fog. Areas of fog. Rain. Isolated tstms. Vsby 1 to 3 NM, decreasing to 1 NM or less. .TONIGHT...SW winds 15 to 20 kt with gusts up to 30 kt. Seas 3 to 5 ft. Areas of fog. Vsby 1 NM or less. .WED...W winds 15 to 20 kt with gusts up to 30 kt. Seas 4 to 6 ft. .WED NIGHT...NW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. .THU...NW winds around 15 kt with gusts up to 25 kt. Seas 2 to 3 ft. .THU NIGHT...NW winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 3 ft. .FRI...NW winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft. .FRI NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft. .SAT...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 4 ft. .SAT NIGHT...SW winds 15 to 20 kt. Seas 2 to 4 ft. Winds and seas higher in and near tstms. 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. $$ ANZ234-240415- Buzzards Bay- 1009 AM EST Tue Jan 23 2018 ...GALE WARNING IN EFFECT UNTIL 8 PM EST THIS EVENING... .THIS AFTERNOON...S winds 10 to 15 kt with gusts up to 25 kt, increasing to 15 to 20 kt with gusts up to 45 kt. Seas 4 to 6 ft. Areas of dense fog. Areas of fog. Rain. Isolated tstms. Vsby 1 to 3 NM, decreasing to 1 NM or less. .TONIGHT...SW winds 20 to 25 kt, becoming W 15 to 20 kt after midnight. Gusts up to 30 kt. Seas 2 to 4 ft. Areas of fog. Vsby 1 NM or less. .WED...W winds 15 to 20 kt with gusts up to 30 kt, diminishing to 10 to 15 kt with gusts up to 20 kt in the afternoon. Seas 2 to 4 ft. .WED NIGHT...NW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. .THU...NW winds 10 to 15 kt with gusts up to 25 kt. Seas around 2 ft. .THU NIGHT...NW winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 3 ft. .FRI...NW winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft. .FRI NIGHT...S winds 5 to 10 kt. Seas around 2 ft. .SAT...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 4 ft. .SAT NIGHT...SW winds 15 to 20 kt. Seas 2 to 3 ft. Winds and seas higher in and near tstms. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ235-240415- Rhode Island Sound- 1009 AM EST Tue Jan 23 2018 ...GALE WARNING IN EFFECT UNTIL 8 PM EST THIS EVENING... .THIS AFTERNOON...S winds 15 to 20 kt. Gusts up to 25 kt, increasing to 45 kt. Seas 7 to 10 ft. Areas of dense fog. Areas of fog. Rain. Isolated tstms. Vsby 1 NM or less. .TONIGHT...W winds 15 to 20 kt with gusts up to 35 kt. Seas 7 to 10 ft. Areas of dense fog. A chance of showers. Vsby 1 NM or less. .WED...W winds 15 to 20 kt with gusts up to 30 kt. Seas 5 to 8 ft. .WED NIGHT...NW winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 5 ft. .THU...NW winds 10 to 15 kt, increasing to 15 to 20 kt in the afternoon. Gusts up to 25 kt. Seas 2 to 3 ft. .THU NIGHT...NW winds 15 to 20 kt with gusts up to 30 kt. Seas 2 to 4 ft. .FRI...NW winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft. .FRI NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. .SAT...SW winds 15 to 20 kt with gusts up to 30 kt. Seas 2 to 4 ft. .SAT NIGHT...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to 5 ft. Winds and seas higher in and near tstms. 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. $$ ANZ237-240415- Block Island Sound- 1009 AM EST Tue Jan 23 2018 ...GALE WARNING IN EFFECT UNTIL 8 PM EST THIS EVENING... .THIS AFTERNOON...S winds 10 to 15 kt with gusts up to 25 kt, increasing to 20 to 25 kt with gusts up to 40 kt. Seas 6 to 9 ft. Areas of dense fog, then areas of fog. Rain, then rain with isolated tstms. Vsby 1 NM or less. .TONIGHT...W winds 10 to 15 kt with gusts up to 25 kt, increasing to 15 to 20 kt with gusts up to 35 kt after midnight. Seas 6 to 9 ft. Areas of fog. Vsby 1 NM or less. .WED...W winds 15 to 20 kt with gusts up to 30 kt. Seas 4 to 7 ft. .WED NIGHT...NW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. .THU...NW winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 3 ft. .THU NIGHT...NW winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 3 ft. .FRI...NW winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft. .FRI NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. .SAT...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 4 ft. .SAT NIGHT...SW winds 15 to 20 kt. Seas 3 to 5 ft. Winds and seas higher in and near tstms. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ230-240415- Boston Harbor- 1009 AM EST Tue Jan 23 2018 ...GALE WARNING IN EFFECT UNTIL 6 PM EST THIS EVENING... .THIS AFTERNOON...S winds around 5 kt, increasing to 15 to 20 kt with gusts up to 45 kt. Waves around 2 ft, except 3 to 5 ft at the outer harbor entrance. Areas of dense fog. Areas of fog. Rain. Isolated tstms. Vsby 1 NM or less. .TONIGHT...SW winds 10 to 15 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. .WED...W winds 10 to 15 kt. Gusts up to 30 kt, decreasing to 20 kt in the afternoon. Waves around 2 ft. .WED NIGHT...NW winds 10 to 15 kt with gusts up to 20 kt. Waves around 2 ft. .THU...NW winds 10 to 15 kt with gusts up to 25 kt. Waves around 2 ft. .THU NIGHT...NW winds 10 to 15 kt with gusts up to 25 kt. Waves around 2 ft. .FRI...NW winds 5 to 10 kt with gusts up to 20 kt. Waves 1 foot or less. .FRI NIGHT...S winds 5 to 10 kt. Waves 1 foot or less. .SAT...SW winds 10 to 15 kt with gusts up to 25 kt. Waves around 2 ft. .SAT NIGHT...SW winds around 10 kt. Waves 1 foot or less. Winds and waves higher in and near tstms. 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. $$ ANZ236-240415- Narragansett Bay- 1009 AM EST Tue Jan 23 2018 ...GALE WARNING IN EFFECT UNTIL 6 PM EST THIS EVENING... .THIS AFTERNOON...S winds 10 to 15 kt with gusts up to 25 kt, increasing to 15 to 20 kt with gusts up to 40 kt. Waves 4 to 7 ft. Areas of dense fog. Areas of fog. Rain. Isolated tstms. Vsby 1 NM or less. .TONIGHT...W winds 10 to 15 kt with gusts up to 30 kt. Waves 4 to 6 ft. Areas of fog. Vsby 1 NM or less. .WED...W winds 10 to 15 kt with gusts up to 25 kt. Waves 2 to 4 ft. .WED NIGHT...NW winds 10 to 15 kt. Gusts up to 20 kt in the evening. Waves 2 to 3 ft. .THU...NW winds 10 to 15 kt with gusts up to 25 kt. Waves around 2 ft. .THU NIGHT...NW winds 10 to 15 kt with gusts up to 25 kt. Waves around 2 ft. .FRI...NW winds 5 to 10 kt with gusts up to 20 kt. Waves 1 foot or less. .FRI NIGHT...SW winds 5 to 10 kt. Waves around 2 ft. .SAT...SW winds 10 to 15 kt with gusts up to 25 kt. Waves 2 to 3 ft. .SAT NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Waves 2 to 3 ft. Winds and waves higher in and near tstms. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ 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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