Coastal Waters Forecast
Issued by NWS Boston, MA

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000 FZUS51 KBOX 180815 CWFBOX Coastal Waters Forecast National Weather Service Boston/Norton MA 415 AM EDT Mon Jun 18 2018 Coastal waters from the Merrimack River MA to Watch Hill RI out to 25 NM ANZ200-182115- 415 AM EDT Mon Jun 18 2018 .Synopsis for Massachusetts and Rhode Island coastal waters... A cold front will approach the waters this afternoon into evening, sweeping through overnight ahead of which there is the possibility of showers and thunderstorms, especially over the eastern waters. A weak wave of low pressure and wet weather is possible Wednesday night over the S waters, otherwise cooler and drier conditions beneath high pressure and northwesterly flow for the remainder of the week, while a warm front lifts north across the waters over the weekend. 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. $$ ANZ250-182115- Coastal waters east of Ipswich Bay and the Stellwagen Bank National Marine Sanctuary- 415 AM EDT Mon Jun 18 2018 ...SMALL CRAFT ADVISORY IN EFFECT FROM 11 AM EDT THIS MORNING THROUGH LATE TONIGHT... .TODAY...SW winds 15 to 20 kt, becoming S 20 to 25 kt this afternoon. Seas 3 to 5 ft. .TONIGHT...SW winds 20 to 25 kt, diminishing to 10 to 15 kt after midnight. Gusts up to 30 kt. Seas 3 to 5 ft. Patchy fog. A chance of showers. Vsby 1 to 3 NM. .TUE...NW winds 5 to 10 kt. Seas 2 to 4 ft. .TUE NIGHT...NW winds around 5 kt. Seas around 2 ft. .WED...SW winds 5 to 10 kt, becoming S 10 to 15 kt with gusts up to 20 kt in the afternoon. Seas 2 to 4 ft. .WED NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. .THU...NE winds 10 to 15 kt. Seas 2 to 3 ft. .THU NIGHT...SW winds 5 to 10 kt. Seas around 2 ft. .FRI...SW winds 5 to 10 kt. Seas around 2 ft. .FRI NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ251-182115- Massachusetts Bay and Ipswich Bay- 415 AM EDT Mon Jun 18 2018 ...SMALL CRAFT ADVISORY IN EFFECT FROM 10 AM EDT THIS MORNING THROUGH THIS EVENING... .TODAY...SW winds 10 to 15 kt, becoming S 15 to 20 kt this afternoon. Gusts up to 30 kt. Seas 2 to 4 ft. A slight chance of showers with isolated tstms this afternoon. .TONIGHT...SW winds 15 to 20 kt with gusts up to 30 kt, becoming W 5 to 10 kt with gusts up to 20 kt after midnight. Seas 2 to 4 ft. A chance of showers. .TUE...N winds 5 to 10 kt. Seas around 2 ft. .TUE NIGHT...NW winds around 5 kt. Seas around 2 ft. .WED...SW winds around 5 kt, becoming S in the afternoon. Seas around 2 ft. .WED NIGHT...SW winds 5 to 10 kt, becoming W after midnight. Seas around 2 ft. .THU...NE winds 5 to 10 kt. Seas around 2 ft. .THU NIGHT...SW winds 5 to 10 kt. Seas 1 foot or less. .FRI...SW winds 5 to 10 kt. Seas around 2 ft. .FRI NIGHT...SW 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. $$ ANZ231-182115- Cape Cod Bay- 415 AM EDT Mon Jun 18 2018 ...SMALL CRAFT ADVISORY IN EFFECT FROM 10 AM EDT THIS MORNING THROUGH THIS EVENING... .TODAY...SW winds 10 to 15 kt, increasing to 15 to 20 kt this afternoon. Gusts up to 30 kt. Seas 2 to 4 ft. .TONIGHT...SW winds 15 to 20 kt, diminishing to 10 to 15 kt after midnight. Gusts up to 30 kt. Seas 2 to 4 ft. Patchy fog. A chance of showers. Vsby 1 to 3 NM. .TUE...N winds 5 to 10 kt. Seas around 2 ft. Patchy fog. A chance of showers. Vsby 1 to 3 NM. .TUE NIGHT...W winds around 5 kt. Seas around 2 ft. .WED...SW winds 5 to 10 kt, becoming S 10 to 15 kt with gusts up to 20 kt in the afternoon. Seas around 2 ft. .WED NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt, becoming W 5 to 10 kt after midnight. Seas around 2 ft. .THU...N winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft. .THU NIGHT...SW winds 5 to 10 kt. Seas 1 foot or less. .FRI...SW winds 5 to 10 kt. Seas 1 foot or less. .FRI NIGHT...SW winds 10 to 15 kt. Seas 1 foot or less. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ254-182115- Coastal waters from Provincetown MA to Chatham MA to Nantucket MA out 20 nm- 415 AM EDT Mon Jun 18 2018 ...SMALL CRAFT ADVISORY IN EFFECT FROM 11 AM EDT THIS MORNING THROUGH TUESDAY MORNING... .TODAY...SW winds 10 to 15 kt, increasing to 15 to 20 kt this afternoon. Gusts up to 25 kt. Seas 3 to 5 ft. Patchy fog. 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 4 to 6 ft. Patchy fog. A chance of showers. Vsby 1 NM or less. .TUE...NW winds 10 to 15 kt, becoming N 5 to 10 kt in the afternoon. Seas 2 to 4 ft. Patchy fog. A chance of showers. Vsby 1 NM or less. .TUE NIGHT...NW winds 5 to 10 kt, diminishing to around 5 kt after midnight. Seas 2 to 3 ft. .WED...SW winds 5 to 10 kt, becoming S 10 to 15 kt with gusts up to 20 kt in the afternoon. Seas 2 to 3 ft. .WED NIGHT...SW winds 10 to 15 kt, becoming W 5 to 10 kt after midnight. Gusts up to 20 kt. Seas 2 to 4 ft. .THU...N winds 10 to 15 kt. Seas 2 to 3 ft. .THU NIGHT...N winds 5 to 10 kt. Seas 2 to 3 ft. .FRI...SW winds 5 to 10 kt. Seas around 2 ft. .FRI NIGHT...SW 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. $$ ANZ255-182115- Coastal Waters extending out to 25 nm South of Marthas Vineyard and Nantucket- 415 AM EDT Mon Jun 18 2018 ...SMALL CRAFT ADVISORY IN EFFECT FROM 11 AM EDT THIS MORNING THROUGH TUESDAY MORNING... .TODAY...SW winds 10 to 15 kt, increasing to 15 to 20 kt this afternoon. Gusts up to 25 kt. Seas 3 to 5 ft. Patchy fog. Vsby 1 NM or less, increasing to 1 to 3 NM this afternoon. .TONIGHT...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 4 to 6 ft. Patchy fog. A chance of showers. Vsby 1 NM or less. .TUE...NW winds 5 to 10 kt, becoming NE in the afternoon. Seas 3 to 5 ft. Patchy fog. A chance of showers. Vsby 1 NM or less. .TUE NIGHT...W winds around 5 kt. Seas 2 to 4 ft. .WED...SW winds 5 to 10 kt, becoming S 10 to 15 kt in the afternoon. Seas 2 to 3 ft. .WED NIGHT...SW winds 10 to 15 kt, becoming W 5 to 10 kt after midnight. Seas 2 to 3 ft. A chance of showers. .THU...NE winds 10 to 15 kt. Seas 2 to 4 ft. .THU NIGHT...NE winds 10 to 15 kt. Seas 2 to 4 ft. .FRI...SE winds 5 to 10 kt. Seas around 2 ft. .FRI NIGHT...S winds around 10 kt. Seas around 2 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ256-182115- Coastal Waters from Montauk NY to Marthas Vineyard extending out to 20 nm South of Block Island- 415 AM EDT Mon Jun 18 2018 ...SMALL CRAFT ADVISORY IN EFFECT FROM 11 AM EDT THIS MORNING THROUGH TUESDAY MORNING... .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. Patchy fog. Vsby 1 NM or less, increasing to 1 to 3 NM this afternoon. .TONIGHT...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 4 to 6 ft. Patchy fog. Vsby 1 NM or less. .TUE...W winds 5 to 10 kt. Seas 3 to 5 ft. Patchy fog. A chance of showers. Vsby 1 NM or less. .TUE NIGHT...S winds 5 to 10 kt, becoming SW after midnight. Seas 2 to 3 ft. .WED...S winds 5 to 10 kt, increasing to 10 to 15 kt in the afternoon. Seas 2 to 3 ft. .WED NIGHT...SW winds 10 to 15 kt, becoming W 5 to 10 kt after midnight. Seas 2 to 3 ft. A chance of showers. .THU...NE winds 10 to 15 kt. Seas 2 to 4 ft. .THU NIGHT...NE winds 10 to 15 kt. Seas 2 to 4 ft. .FRI...SW winds 5 to 10 kt. Seas around 2 ft. .FRI NIGHT...S winds 5 to 10 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. $$ ANZ232-182115- Nantucket Sound- 415 AM EDT Mon Jun 18 2018 ...SMALL CRAFT ADVISORY IN EFFECT FROM 10 AM EDT THIS MORNING THROUGH THIS EVENING... .TODAY...SW winds 10 to 15 kt, increasing to 15 to 20 kt this afternoon. Gusts up to 25 kt. Seas 2 to 4 ft. Patchy fog. Vsby 1 NM or less. .TONIGHT...SW winds 15 to 20 kt, diminishing to 10 to 15 kt after midnight. Gusts up to 25 kt. Seas 2 to 4 ft. Patchy fog. A chance of showers. Vsby 1 NM or less. .TUE...NW winds 5 to 10 kt, becoming N in the afternoon. Seas around 2 ft. Patchy fog. A chance of showers. Vsby 1 NM or less. .TUE NIGHT...W winds around 5 kt. Seas around 2 ft. .WED...SW winds 5 to 10 kt, increasing to 10 to 15 kt in the afternoon. Seas around 2 ft. .WED NIGHT...SW winds 10 to 15 kt, becoming W 5 to 10 kt after midnight. Seas around 2 ft. .THU...NE winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft. .THU NIGHT...N winds 5 to 10 kt. Seas around 2 ft. .FRI...W winds 5 to 10 kt. Seas around 2 ft. .FRI NIGHT...SW winds around 10 kt. Seas around 2 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ233-182115- Vineyard Sound- 415 AM EDT Mon Jun 18 2018 ...SMALL CRAFT ADVISORY IN EFFECT FROM 10 AM EDT THIS MORNING THROUGH THIS EVENING... .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 2 to 4 ft. Patchy fog. Vsby 1 to 3 NM. .TONIGHT...SW winds 15 to 20 kt with gusts up to 30 kt. Seas 2 to 4 ft. Patchy fog. Vsby 1 NM or less. .TUE...NW winds 5 to 10 kt. Seas 2 to 3 ft. Patchy fog. A chance of showers. Vsby 1 NM or less. .TUE NIGHT...S winds around 5 kt, becoming W after midnight. Seas around 2 ft. .WED...SW winds 5 to 10 kt, increasing to 10 to 15 kt in the afternoon. Seas around 2 ft. .WED NIGHT...SW winds 10 to 15 kt, becoming W 5 to 10 kt after midnight. Seas around 2 ft. A chance of showers. .THU...NE winds 10 to 15 kt. Seas around 2 ft. .THU NIGHT...N winds 5 to 10 kt. Seas around 2 ft. .FRI...W winds 5 to 10 kt. Seas around 2 ft. .FRI NIGHT...SW winds around 10 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. $$ ANZ234-182115- Buzzards Bay- 415 AM EDT Mon Jun 18 2018 ...SMALL CRAFT ADVISORY IN EFFECT FROM 10 AM EDT THIS MORNING THROUGH THIS EVENING... .TODAY...SW winds 10 to 15 kt with gusts up to 20 kt, increasing to 15 to 20 kt with gusts up to 30 kt this afternoon. Seas 2 to 4 ft. Patchy fog. Vsby 1 to 3 NM. .TONIGHT...SW winds 15 to 20 kt with gusts up to 30 kt, diminishing to 10 to 15 kt with gusts up to 20 kt after midnight. Seas 3 to 5 ft. Patchy fog. A chance of showers. Vsby 1 NM or less. .TUE...NW winds 5 to 10 kt. Seas 2 to 3 ft. Patchy fog. A chance of showers. Vsby 1 to 3 NM. .TUE NIGHT...SW winds around 5 kt, becoming W after midnight. Seas around 2 ft. .WED...SW winds 5 to 10 kt, increasing to 10 to 15 kt in the afternoon. Seas around 2 ft. .WED NIGHT...SW winds 10 to 15 kt, becoming W 5 to 10 kt after midnight. Seas around 2 ft. .THU...NE winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft. .THU NIGHT...N winds 5 to 10 kt. Seas around 2 ft. .FRI...W winds 5 to 10 kt. Seas 1 foot or less. .FRI NIGHT...SW winds 5 to 10 kt. Seas 1 foot or less. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ235-182115- Rhode Island Sound- 415 AM EDT Mon Jun 18 2018 ...SMALL CRAFT ADVISORY IN EFFECT FROM 10 AM EDT THIS MORNING THROUGH THIS EVENING... .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. Patchy fog. Vsby 1 NM or less, increasing to 1 to 3 NM this afternoon. .TONIGHT...SW winds 15 to 20 kt with gusts up to 30 kt. Seas 3 to 5 ft. Patchy fog. Vsby 1 NM or less. .TUE...W winds 5 to 10 kt. Seas 3 to 4 ft. Patchy fog. A chance of showers. Vsby 1 NM or less. .TUE NIGHT...SW winds 5 to 10 kt, becoming W after midnight. Seas 2 to 3 ft. .WED...S winds 5 to 10 kt, becoming SW 10 to 15 kt in the afternoon. Seas around 2 ft. .WED NIGHT...SW winds 10 to 15 kt, becoming NW 5 to 10 kt after midnight. Seas around 2 ft. A chance of showers. .THU...NE winds 10 to 15 kt. Seas 2 to 3 ft. .THU NIGHT...NE winds 10 to 15 kt. Seas 2 to 3 ft. .FRI...W winds 5 to 10 kt. Seas around 2 ft. .FRI NIGHT...SW winds 5 to 10 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. $$ ANZ237-182115- Block Island Sound- 415 AM EDT Mon Jun 18 2018 ...SMALL CRAFT ADVISORY IN EFFECT FROM 10 AM EDT THIS MORNING THROUGH THIS EVENING... .TODAY...SW winds 10 to 15 kt with gusts up to 20 kt, increasing to 15 to 20 kt with gusts up to 30 kt this afternoon. Seas 2 to 4 ft. Patchy fog. Vsby 1 NM or less, increasing to 1 to 3 NM this afternoon. .TONIGHT...SW winds 15 to 20 kt, diminishing to 10 to 15 kt after midnight. Gusts up to 25 kt. Seas 3 to 5 ft. Patchy fog. Vsby 1 NM or less. .TUE...W winds 5 to 10 kt. Seas 2 to 4 ft. Patchy fog. A chance of showers. Vsby 1 to 3 NM. .TUE NIGHT...NW winds around 5 kt. Seas 2 to 3 ft. .WED...SE winds 5 to 10 kt, becoming S 10 to 15 kt in the afternoon. Seas around 2 ft. .WED NIGHT...SW winds 10 to 15 kt, becoming NW 5 to 10 kt after midnight. Seas around 2 ft. A chance of showers. .THU...NE winds 5 to 10 kt. Seas 2 to 3 ft. .THU NIGHT...NE winds 5 to 10 kt. Seas 2 to 3 ft. .FRI...W winds 5 to 10 kt. Seas around 2 ft. .FRI NIGHT...S winds 5 to 10 kt. Seas around 2 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ230-182115- Boston Harbor- 415 AM EDT Mon Jun 18 2018 ...SMALL CRAFT ADVISORY IN EFFECT FROM 10 AM EDT THIS MORNING THROUGH THIS EVENING... .TODAY...SW winds 10 to 15 kt, increasing to 15 to 20 kt this afternoon. Gusts up to 25 kt. Waves around 2 ft. A slight chance of showers with isolated tstms this afternoon. .TONIGHT...SW winds 15 to 20 kt, becoming W 5 to 10 kt after midnight. Gusts up to 25 kt. Waves around 2 ft. A chance of showers. .TUE...NW winds 5 to 10 kt. Gusts up to 20 kt in the afternoon. Waves around 2 ft. .TUE NIGHT...NW winds around 5 kt. Waves 1 foot or less. .WED...SW winds around 5 kt. Waves 1 foot or less. .WED NIGHT...W winds 5 to 10 kt. Waves 1 foot or less. .THU...NE winds 5 to 10 kt. Waves 1 foot or less. .THU NIGHT...SW winds around 5 kt. Waves 1 foot or less. .FRI...SW winds around 5 kt. Waves 1 foot or less. .FRI NIGHT...SW 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. $$ ANZ236-182115- Narragansett Bay- 415 AM EDT Mon Jun 18 2018 ...SMALL CRAFT ADVISORY IN EFFECT FROM 10 AM EDT THIS MORNING THROUGH THIS EVENING... .TODAY...SW winds 10 to 15 kt. Gusts up to 20 kt, increasing to 30 kt this afternoon. Waves 2 to 4 ft. Patchy fog this morning with vsby 1 to 3 NM. .TONIGHT...SW winds 10 to 15 kt with gusts up to 30 kt, diminishing to 5 to 10 kt with gusts up to 20 kt after midnight. Waves 2 to 4 ft. Patchy fog. A chance of showers. Vsby 1 to 3 NM. .TUE...NW winds 5 to 10 kt. Waves 2 to 3 ft. Patchy fog. A chance of showers. .TUE NIGHT...NW winds around 5 kt. Waves 2 to 3 ft. .WED...S winds 5 to 10 kt. Waves around 2 ft. .WED NIGHT...SW winds 5 to 10 kt, becoming NW after midnight. Waves around 2 ft. .THU...NE winds 5 to 10 kt. Waves around 2 ft. .THU NIGHT...NE winds 5 to 10 kt. Waves around 2 ft. .FRI...W winds 5 to 10 kt. Waves around 2 ft. .FRI NIGHT...SW winds 5 to 10 kt. Waves around 2 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ 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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