Coastal Waters Forecast
Issued by NWS Boston, MA

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000 FZUS51 KBOX 260516 CWFBOX Coastal Waters Forecast National Weather Service Boston/Norton MA 116 AM EDT Thu Apr 26 2018 Coastal waters from the Merrimack River MA to Watch Hill RI out to 25 NM ANZ200-261800- 116 AM EDT Thu Apr 26 2018 .Synopsis for Massachusetts and Rhode Island coastal waters... Low pressure lifts across New England overnight. Another low will approach from the southwest on Friday resulting in showers across the waters Friday evening, before it lifts over New England Friday night. A cold front will cross the waters late Saturday with a few showers possible. Dry high pressure will build in from the west Saturday night and 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. $$ ANZ250-261800- Coastal waters east of Ipswich Bay and the Stellwagen Bank National Marine Sanctuary- 116 AM EDT Thu Apr 26 2018 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH FRIDAY MORNING... .REST OF TONIGHT...SE winds 10 to 15 kt with gusts up to 25 kt. Seas 5 to 8 ft. Areas of fog. Showers with isolated tstms. Vsby 1 NM or less. .THU...SW winds 10 to 15 kt with gusts up to 25 kt. Seas 4 to 7 ft. Areas of fog. A chance of showers. Vsby 1 NM or less. .THU NIGHT...W winds 10 to 15 kt with gusts up to 25 kt. Seas 4 to 7 ft. .FRI...SW winds 5 to 10 kt, becoming SE 10 to 15 kt with gusts up to 20 kt in the afternoon. Seas 4 to 6 ft. A chance of showers. .FRI NIGHT...S winds 10 to 15 kt with gusts up to 20 kt. Seas 4 to 6 ft. Showers likely. .SAT...SW winds 5 to 10 kt with gusts up to 20 kt, becoming S 10 to 15 kt in the afternoon. Seas 3 to 5 ft. .SAT NIGHT...SW winds 10 to 15 kt. Gusts up to 20 kt in the evening. Seas 3 to 5 ft. .SUN...W winds 5 to 10 kt with gusts up to 20 kt. Seas 3 to 5 ft. .SUN NIGHT...W winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 5 ft. .MON...W winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. .MON NIGHT...W winds 5 to 10 kt. Seas around 2 ft. Winds and seas higher in and near tstms. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ251-261800- Massachusetts Bay and Ipswich Bay- 116 AM EDT Thu Apr 26 2018 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS EVENING... .REST OF TONIGHT...SE winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 5 ft. Areas of fog. Showers likely with isolated tstms. Vsby 1 NM or less. .THU...S winds 5 to 10 kt, becoming SW 10 to 15 kt in the afternoon. Gusts up to 20 kt. Seas 3 to 5 ft. Areas of fog. A chance of showers. Vsby 1 NM or less. .THU NIGHT...W winds 10 to 15 kt with gusts up to 25 kt, diminishing to 5 to 10 kt after midnight. Seas 3 to 5 ft. .FRI...SW winds around 5 kt, becoming SE 10 to 15 kt in the afternoon. Seas 2 to 4 ft. Showers likely. .FRI NIGHT...SE winds 10 to 15 kt, becoming S 5 to 10 kt after midnight. Seas 2 to 4 ft. Showers likely. .SAT...S winds 5 to 10 kt. Seas 2 to 4 ft. .SAT NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt, becoming W 5 to 10 kt after midnight. Seas 2 to 4 ft. .SUN...W winds 5 to 10 kt with gusts up to 20 kt. Seas 2 to 4 ft. .SUN NIGHT...W winds 5 to 10 kt with gusts up to 20 kt. Seas 2 to 4 ft. .MON...W winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. .MON NIGHT...W winds 5 to 10 kt. Seas 1 foot or less. 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. $$ ANZ231-261800- Cape Cod Bay- 116 AM EDT Thu Apr 26 2018 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 3 AM EDT EARLY THIS MORNING... .REST OF TONIGHT...S winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Areas of fog. Showers with isolated tstms. Vsby 1 NM or less. .THU...SW winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 3 ft. Areas of fog. A chance of showers. Vsby 1 NM or less. .THU NIGHT...W winds 10 to 15 kt with gusts up to 20 kt, diminishing to 5 to 10 kt after midnight. Seas around 2 ft. .FRI...S winds 5 to 10 kt. Seas 1 foot or less. Showers likely. .FRI NIGHT...S winds 10 to 15 kt, diminishing to 5 to 10 kt after midnight. Gusts up to 20 kt. Seas around 2 ft. Showers likely. .SAT...SW winds 5 to 10 kt, becoming S 10 to 15 kt in the afternoon. Seas 1 foot or less. .SAT NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt, becoming W 5 to 10 kt after midnight. Seas 1 foot or less. .SUN...W winds 5 to 10 kt. Seas around 2 ft. .SUN NIGHT...W winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft. .MON...W winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft. .MON NIGHT...W winds 5 to 10 kt. Seas 1 foot or less. Winds and seas higher in and near tstms. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ254-261800- Coastal waters from Provincetown MA to Chatham MA to Nantucket MA out 20 nm- 116 AM EDT Thu Apr 26 2018 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH FRIDAY MORNING... .REST OF TONIGHT...S winds 15 to 20 kt with gusts up to 30 kt. Seas 7 to 10 ft. Areas of fog. Showers with isolated tstms. Vsby 1 NM or less. .THU...SW winds 10 to 15 kt, increasing to 15 to 20 kt in the afternoon. Gusts up to 30 kt. Seas 6 to 9 ft. Areas of fog. A chance of showers. Vsby 1 NM or less. .THU NIGHT...SW winds 15 to 20 kt with gusts up to 30 kt, becoming W 10 to 15 kt with gusts up to 20 kt after midnight. Seas 5 to 8 ft. .FRI...S winds 5 to 10 kt, becoming SE 10 to 15 kt in the afternoon. Seas 4 to 6 ft. A chance of showers. .FRI NIGHT...S winds 10 to 15 kt with gusts up to 20 kt. Seas 4 to 7 ft. Showers likely. .SAT...SW winds 10 to 15 kt. Seas 4 to 6 ft. .SAT NIGHT...SW winds 10 to 15 kt. Gusts up to 20 kt in the evening. Seas 3 to 5 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 3 to 5 ft. .MON...W winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 5 ft. .MON NIGHT...W winds 10 to 15 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. $$ ANZ255-261800- Coastal Waters extending out to 25 nm South of Marthas Vineyard and Nantucket- 116 AM EDT Thu Apr 26 2018 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH FRIDAY MORNING... .REST OF TONIGHT...S winds 15 to 20 kt with gusts up to 30 kt. Seas 9 to 12 ft. Areas of fog. Showers with isolated tstms. Vsby 1 NM or less. .THU...SW winds 10 to 15 kt, increasing to 15 to 20 kt in the afternoon. Gusts up to 25 kt. Seas 7 to 10 ft. Areas of dense fog. A chance of showers. Vsby 1 NM or less. .THU NIGHT...SW winds 15 to 20 kt with gusts up to 30 kt, becoming W 10 to 15 kt with gusts up to 20 kt after midnight. Seas 6 to 9 ft. .FRI...S winds 5 to 10 kt, becoming SE 10 to 15 kt with gusts up to 20 kt in the afternoon. Seas 4 to 7 ft. A chance of showers. .FRI NIGHT...S winds 10 to 15 kt with gusts up to 20 kt. Seas 4 to 6 ft. Showers likely. .SAT...SW winds 10 to 15 kt. Seas 4 to 6 ft. .SAT NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 5 ft. .SUN...W winds 10 to 15 kt with gusts up to 25 kt. Seas 3 to 5 ft. .SUN NIGHT...W winds 10 to 15 kt with gusts up to 25 kt. Seas 4 to 6 ft. .MON...W winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 5 ft. .MON NIGHT...W winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. Winds and seas higher in and near tstms. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ256-261800- Coastal Waters from Montauk NY to Marthas Vineyard extending out to 20 nm South of Block Island- 116 AM EDT Thu Apr 26 2018 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH FRIDAY MORNING... .REST OF TONIGHT...S winds 10 to 15 kt with gusts up to 20 kt. Seas 9 to 11 ft. Areas of dense fog. A chance of showers with isolated tstms. Vsby 1 NM or less. .THU...SW winds 10 to 15 kt, increasing to 15 to 20 kt in the afternoon. Gusts up to 30 kt. Seas 8 to 11 ft. Areas of dense fog. Vsby 1 NM or less. .THU NIGHT...SW winds 15 to 20 kt with gusts up to 30 kt, becoming W 5 to 10 kt after midnight. Seas 6 to 9 ft. .FRI...S winds 5 to 10 kt, becoming SE 15 to 20 kt in the afternoon. Seas 4 to 6 ft. Showers likely. Vsby 1 to 3 NM. .FRI NIGHT...S winds 15 to 20 kt, becoming SW 10 to 15 kt after midnight. Seas 4 to 6 ft. Showers likely. Vsby 1 to 3 NM. .SAT...SW winds 5 to 10 kt, increasing to 10 to 15 kt in the afternoon. Seas 4 to 6 ft. .SAT NIGHT...W winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 5 ft. .SUN...W winds 10 to 15 kt with gusts up to 25 kt. Seas 3 to 5 ft. .SUN NIGHT...NW winds 10 to 15 kt with gusts up to 20 kt. Seas 4 to 5 ft. .MON...W winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 5 ft. .MON NIGHT...W winds 10 to 15 kt with gusts up 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. $$ ANZ232-261800- Nantucket Sound- 116 AM EDT Thu Apr 26 2018 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS EVENING... .REST OF TONIGHT...S winds 10 to 15 kt with gusts up to 25 kt. Seas 3 to 5 ft. Areas of fog. Showers with isolated tstms. Vsby 1 NM or less. .THU...SW winds 10 to 15 kt, increasing to 15 to 20 kt in the afternoon. Gusts up to 25 kt. Seas 2 to 4 ft. Areas of dense fog. A chance of showers. Vsby 1 NM or less. .THU NIGHT...SW winds 15 to 20 kt with gusts up to 25 kt, becoming W 5 to 10 kt after midnight. Seas 2 to 4 ft. .FRI...S winds 5 to 10 kt, becoming SE 10 to 15 kt with gusts up to 20 kt in the afternoon. Seas 2 to 3 ft. Showers likely. .FRI NIGHT...S winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. Showers likely. .SAT...SW winds 5 to 10 kt, increasing to 10 to 15 kt in the afternoon. Seas 2 to 3 ft. .SAT NIGHT...SW winds 10 to 15 kt, becoming W 5 to 10 kt after midnight. Seas 2 to 3 ft. .SUN...W winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. .SUN NIGHT...W winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. .MON...W winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. .MON NIGHT...W winds around 10 kt. Seas around 2 ft. Winds and seas higher in and near tstms. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ233-261800- Vineyard Sound- 116 AM EDT Thu Apr 26 2018 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS EVENING... .REST OF TONIGHT...S winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 5 ft. Areas of fog. Showers with isolated tstms. Vsby 1 NM or less. .THU...SW winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 4 ft. Areas of dense fog. A chance of showers. Vsby 1 NM or less. .THU NIGHT...W winds 10 to 15 kt with gusts up to 25 kt, diminishing to 5 to 10 kt after midnight. Seas 2 to 4 ft. .FRI...S winds 5 to 10 kt, becoming SE 10 to 15 kt with gusts up to 20 kt in the afternoon. Seas around 2 ft. Showers likely. .FRI NIGHT...S winds 10 to 15 kt. Gusts up to 20 kt in the evening. Seas 2 to 3 ft. Showers likely. .SAT...SW winds 5 to 10 kt, increasing to 10 to 15 kt in the afternoon. Seas 2 to 3 ft. .SAT NIGHT...SW winds 10 to 15 kt. Gusts up to 20 kt in the evening. Seas 2 to 3 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 2 to 3 ft. .MON...W winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. .MON NIGHT...W winds around 10 kt. Seas around 2 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. $$ ANZ234-261800- Buzzards Bay- 116 AM EDT Thu Apr 26 2018 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS EVENING... .REST OF TONIGHT...S winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Areas of fog. Showers with isolated tstms. Vsby 1 NM or less. .THU...SW winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 4 ft. Areas of dense fog. A chance of showers. Vsby 1 NM or less. .THU NIGHT...W winds 10 to 15 kt with gusts up to 25 kt, diminishing to 5 to 10 kt after midnight. Seas 2 to 4 ft. .FRI...S winds 5 to 10 kt, becoming SE 10 to 15 kt with gusts up to 20 kt in the afternoon. Seas around 2 ft. Showers likely. .FRI NIGHT...S winds 10 to 15 kt with gusts up to 20 kt, diminishing to 5 to 10 kt after midnight. Seas around 2 ft. Showers likely. .SAT...SW winds 5 to 10 kt, increasing to 10 to 15 kt in the afternoon. Seas around 2 ft. .SAT NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt, becoming W 5 to 10 kt after midnight. Seas around 2 ft. .SUN...W winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. .SUN NIGHT...W winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. .MON...W winds 5 to 10 kt with gusts up to 20 kt. Seas 2 to 3 ft. .MON NIGHT...W winds 5 to 10 kt. Seas around 2 ft. Winds and seas higher in and near tstms. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ235-261800- Rhode Island Sound- 116 AM EDT Thu Apr 26 2018 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH FRIDAY MORNING... .REST OF TONIGHT...S winds 5 to 10 kt with gusts up to 20 kt. Seas 7 to 9 ft. Areas of fog. Showers likely. Vsby 1 NM or less. .THU...SW winds 10 to 15 kt, increasing to 15 to 20 kt in the afternoon. Gusts up to 25 kt. Seas 6 to 9 ft. Areas of dense fog. Vsby 1 NM or less. .THU NIGHT...W winds 15 to 20 kt with gusts up to 25 kt, diminishing to 5 to 10 kt after midnight. Seas 5 to 8 ft. .FRI...S winds 5 to 10 kt, becoming SE 15 to 20 kt in the afternoon. Seas 4 to 6 ft. Showers likely. Vsby 1 to 3 NM. .FRI NIGHT...S winds 15 to 20 kt, diminishing to 10 to 15 kt after midnight. Gusts up to 25 kt. Seas 4 to 6 ft. Showers likely. .SAT...SW winds 5 to 10 kt, increasing to 10 to 15 kt in the afternoon. Seas 3 to 5 ft. .SAT NIGHT...W winds 10 to 15 kt. Gusts up to 20 kt in the evening. Seas 3 to 4 ft. .SUN...W winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 5 ft. .SUN NIGHT...NW winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 5 ft. .MON...W winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. .MON NIGHT...W 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. $$ ANZ237-261800- Block Island Sound- 116 AM EDT Thu Apr 26 2018 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH FRIDAY MORNING... .REST OF TONIGHT...S winds 5 to 10 kt. Seas 6 to 9 ft. Areas of dense fog. A chance of showers. Vsby 1 NM or less. .THU...SW winds 10 to 15 kt with gusts up to 25 kt. Seas 5 to 8 ft. Areas of dense fog. Vsby 1 NM or less. .THU NIGHT...W winds 10 to 15 kt with gusts up to 25 kt, diminishing to 5 to 10 kt after midnight. Seas 4 to 7 ft. .FRI...SE winds 5 to 10 kt, increasing to 10 to 15 kt with gusts up to 20 kt in the afternoon. Seas 3 to 5 ft. Showers likely. Vsby 1 to 3 NM. .FRI NIGHT...S winds 10 to 15 kt with gusts up to 20 kt, becoming SW 5 to 10 kt after midnight. Seas 3 to 5 ft. A chance of showers. Vsby 1 to 3 NM. .SAT...SW winds 5 to 10 kt, increasing to 10 to 15 kt in the afternoon. Seas 3 to 5 ft. .SAT NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt, becoming W 5 to 10 kt after midnight. Seas 2 to 4 ft. .SUN...W winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 5 ft. .SUN NIGHT...NW winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 5 ft. .MON...W winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. .MON NIGHT...W winds 10 to 15 kt. Seas around 2 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ230-261800- Boston Harbor- 116 AM EDT Thu Apr 26 2018 .REST OF TONIGHT...SE winds 5 to 10 kt. Waves 1 foot or less, except 2 to 4 ft at the outer harbor entrance. Areas of fog. Showers likely with isolated tstms. Vsby 1 NM or less. .THU...SW winds 5 to 10 kt, becoming W 10 to 15 kt with gusts up to 20 kt in the afternoon. Waves around 2 ft. Areas of fog. A chance of showers. Vsby 1 NM or less. .THU NIGHT...W winds 10 to 15 kt with gusts up to 20 kt, diminishing to 5 to 10 kt after midnight. Waves around 2 ft. .FRI...SW winds around 5 kt, becoming SE in the afternoon. Waves 1 foot or less. Showers likely. .FRI NIGHT...S winds 5 to 10 kt. Waves 1 foot or less. Showers likely. .SAT...SW winds 5 to 10 kt. Waves around 2 ft. .SAT NIGHT...SW winds 5 to 10 kt. Waves around 2 ft. .SUN...W winds 5 to 10 kt. Waves around 2 ft. .SUN NIGHT...W winds 5 to 10 kt. Waves around 2 ft. .MON...NW winds 5 to 10 kt. Waves around 2 ft. .MON NIGHT...W winds 5 to 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. $$ ANZ236-261800- Narragansett Bay- 116 AM EDT Thu Apr 26 2018 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 11 AM EDT THIS MORNING... .REST OF TONIGHT...S winds 5 to 10 kt. Waves 3 to 5 ft, except 5 to 8 ft at the bay entrance. Areas of fog. Showers likely. Vsby 1 NM or less. .THU...SW winds 5 to 10 kt, increasing to 10 to 15 kt with gusts up to 25 kt in the afternoon. Waves 3 to 5 ft. Areas of fog. Vsby 1 NM or less. .THU NIGHT...W winds 10 to 15 kt with gusts up to 20 kt, diminishing to around 5 kt after midnight. Waves 2 to 4 ft. .FRI...S winds 5 to 10 kt, becoming SE 10 to 15 kt with gusts up to 20 kt in the afternoon. Waves 2 to 4 ft. Showers likely. .FRI NIGHT...S winds 10 to 15 kt with gusts up to 20 kt, diminishing to 5 to 10 kt after midnight. Waves 2 to 4 ft. Showers likely. .SAT...SW winds 5 to 10 kt. Waves 2 to 4 ft. .SAT NIGHT...W winds 5 to 10 kt. Waves 2 to 4 ft. .SUN...W winds 10 to 15 kt with gusts up to 20 kt. Waves 2 to 4 ft. .SUN NIGHT...NW winds 5 to 10 kt with gusts up to 20 kt. Waves 2 to 3 ft. .MON...W winds 5 to 10 kt. Waves 2 to 3 ft. .MON NIGHT...W winds 5 to 10 kt. Waves around 2 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ 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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