Coastal Waters Forecast
Issued by NWS Boston, MA

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473 FZUS51 KBOX 190748 CWFBOX Coastal Waters Forecast National Weather Service Boston/Norton MA 348 AM EDT Tue Jun 19 2018 Coastal waters from the Merrimack River MA to Watch Hill RI out to 25 NM ANZ200-192015- 348 AM EDT Tue Jun 19 2018 .Synopsis for Massachusetts and Rhode Island coastal waters... A cold front will sweep offshore during the morning hours today behind which winds will shift northerly as high pressure builds in from the west. Shifting east, an area of low pressure follows for Wednesday night skirting south coastal New England with rain and possibly lower visibility. Seasonable and dry weather follows with return high pressure 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. $$ ANZ250-192015- Coastal waters east of Ipswich Bay and the Stellwagen Bank National Marine Sanctuary- 348 AM EDT Tue Jun 19 2018 ...SMALL CRAFT ADVISORY UNTIL 4 AM EDT EARLY THIS MORNING... .TODAY...NW winds 10 to 15 kt with gusts up to 20 kt, diminishing to 5 to 10 kt this afternoon. Seas 2 to 4 ft. .TONIGHT...NW winds 5 to 10 kt. Seas 2 to 3 ft. .WED...W winds around 5 kt, becoming S 10 to 15 kt with gusts up to 20 kt in the afternoon. Seas 2 to 3 ft. .WED NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. .THU...N winds 5 to 10 kt, becoming NE in the afternoon. Gusts up to 20 kt. Seas 2 to 3 ft. .THU NIGHT...SE winds 5 to 10 kt, becoming W after midnight. Seas around 2 ft. .FRI...E winds 5 to 10 kt. Seas around 2 ft. .FRI NIGHT...S winds 10 to 15 kt. Seas 2 to 3 ft. .SAT...S winds 10 to 15 kt. Seas 2 to 3 ft. .SAT NIGHT...S winds 10 to 15 kt. Seas 2 to 4 ft. A chance of showers. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ251-192015- Massachusetts Bay and Ipswich Bay- 348 AM EDT Tue Jun 19 2018 .TODAY...NW winds 5 to 10 kt. Seas around 2 ft. .TONIGHT...NW winds 5 to 10 kt. Seas 1 foot or less. .WED...SW winds around 5 kt, becoming S 10 to 15 kt in the afternoon. Seas around 2 ft. .WED NIGHT...SW winds 10 to 15 kt, diminishing to 5 to 10 kt after midnight. Seas around 2 ft. .THU...N winds 5 to 10 kt with gusts up to 20 kt, becoming E in the afternoon. Seas 1 foot or less. .THU NIGHT...SE winds 5 to 10 kt, becoming W after midnight. Seas 1 foot or less. .FRI...E winds 5 to 10 kt. Seas around 2 ft. .FRI NIGHT...S winds 5 to 10 kt. Seas around 2 ft. .SAT...S winds 5 to 10 kt. Seas 2 to 3 ft. A chance of showers. .SAT NIGHT...S winds 5 to 10 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. $$ ANZ231-192015- Cape Cod Bay- 348 AM EDT Tue Jun 19 2018 .TODAY...NW winds 10 to 15 kt with gusts up to 20 kt, becoming N 5 to 10 kt this afternoon. Seas around 2 ft. Scattered showers this morning. .TONIGHT...NW winds 5 to 10 kt. Seas 1 foot or less. .WED...W winds around 5 kt, becoming S 10 to 15 kt with gusts up to 20 kt in the afternoon. Seas around 2 ft. .WED NIGHT...SW winds 10 to 15 kt, diminishing to 5 to 10 kt after midnight. Gusts up to 20 kt. Seas around 2 ft. .THU...NW winds 5 to 10 kt, becoming NE in the afternoon. Seas 1 foot or less. .THU NIGHT...SE winds 5 to 10 kt, becoming NW after midnight. Seas 1 foot or less. .FRI...E winds 5 to 10 kt. Seas around 2 ft. .FRI NIGHT...S winds 5 to 10 kt. Seas around 2 ft. .SAT...SE winds 5 to 10 kt. Seas around 2 ft. A chance of showers. .SAT NIGHT...S winds 5 to 10 kt. Seas around 2 ft. A chance of showers. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ254-192015- Coastal waters from Provincetown MA to Chatham MA to Nantucket MA out 20 nm- 348 AM EDT Tue Jun 19 2018 ...SMALL CRAFT ADVISORY UNTIL 2 PM EDT THIS AFTERNOON... .TODAY...W winds 10 to 15 kt with gusts up to 25 kt, becoming N 5 to 10 kt this afternoon. Seas 3 to 5 ft. Areas of fog this morning. Scattered showers this morning with vsby 1 NM or less. .TONIGHT...NW winds 5 to 10 kt. Seas 2 to 4 ft. .WED...W winds around 5 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, 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 with gusts up to 20 kt, becoming NE in the afternoon. Seas 2 to 3 ft. .THU NIGHT...E winds 5 to 10 kt, becoming NE after midnight. Seas around 2 ft. .FRI...E winds 5 to 10 kt. Seas around 2 ft. .FRI NIGHT...S winds 5 to 10 kt. Seas 2 to 3 ft. .SAT...SE winds 5 to 10 kt. Seas 2 to 3 ft. A chance of showers. .SAT NIGHT...S winds around 10 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. $$ ANZ255-192015- Coastal Waters extending out to 25 nm South of Marthas Vineyard and Nantucket- 348 AM EDT Tue Jun 19 2018 ...SMALL CRAFT ADVISORY UNTIL 2 PM EDT THIS AFTERNOON... .TODAY...W winds 15 to 20 kt with gusts up to 25 kt, becoming NE 5 to 10 kt this afternoon. Seas 4 to 7 ft. Areas of fog this morning. Scattered showers this morning with vsby 1 NM or less. .TONIGHT...SW winds around 5 kt, becoming NW after midnight. Seas 2 to 4 ft. .WED...N winds around 5 kt, becoming S in the afternoon. Seas 2 to 3 ft. .WED NIGHT...SW winds 5 to 10 kt. Seas 2 to 3 ft. A chance of showers. .THU...W winds 5 to 10 kt, becoming NE in the afternoon. Seas around 2 ft. Patchy fog. A chance of showers. .THU NIGHT...NE winds 5 to 10 kt. Seas around 2 ft. .FRI...E winds 5 to 10 kt. Seas around 2 ft. .FRI NIGHT...SE winds 5 to 10 kt. Seas around 2 ft. .SAT...SE winds around 10 kt. Seas 2 to 3 ft. A chance of showers. .SAT NIGHT...S winds around 10 kt. Seas 2 to 4 ft. A chance of showers. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ256-192015- Coastal Waters from Montauk NY to Marthas Vineyard extending out to 20 nm South of Block Island- 348 AM EDT Tue Jun 19 2018 ...SMALL CRAFT ADVISORY UNTIL 2 PM EDT THIS AFTERNOON... .TODAY...W winds 10 to 15 kt with gusts up to 25 kt, diminishing to 5 to 10 kt this afternoon. Seas 4 to 7 ft. Scattered showers this morning with vsby 1 NM or less. .TONIGHT...S winds 5 to 10 kt, becoming N after midnight. Seas 2 to 4 ft. .WED...E winds around 5 kt, becoming S in the afternoon. Seas 2 to 3 ft. .WED NIGHT...SW winds 5 to 10 kt. Seas 2 to 3 ft. A chance of showers. .THU...W winds 5 to 10 kt, becoming E in the afternoon. Seas 2 to 3 ft. A chance of showers. .THU NIGHT...NE winds 5 to 10 kt. Gusts up to 20 kt in the evening. Seas 2 to 3 ft. .FRI...E winds 5 to 10 kt. Seas around 2 ft. .FRI NIGHT...SE winds 5 to 10 kt. Seas around 2 ft. .SAT...SE winds 5 to 10 kt. Seas 2 to 3 ft. A chance of showers. .SAT NIGHT...S winds around 10 kt. Seas 3 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. $$ ANZ232-192015- Nantucket Sound- 348 AM EDT Tue Jun 19 2018 .TODAY...NW winds 10 to 15 kt with gusts up to 20 kt, becoming NE 5 to 10 kt this afternoon. Seas 2 to 4 ft. Areas of fog this morning. Scattered showers this morning with vsby 1 NM or less. .TONIGHT...E winds 5 to 10 kt, becoming NW after midnight. Seas 2 to 3 ft. .WED...W winds around 5 kt, becoming S 10 to 15 kt in the afternoon. Seas around 2 ft. .WED NIGHT...SW winds 10 to 15 kt, diminishing to 5 to 10 kt with gusts up to 20 kt after midnight. Seas around 2 ft. .THU...W winds 5 to 10 kt, becoming NE in the afternoon. Seas around 2 ft. .THU NIGHT...E winds 5 to 10 kt, becoming NE after midnight. Seas 1 foot or less. .FRI...E winds 5 to 10 kt. Seas around 2 ft. .FRI NIGHT...S winds 5 to 10 kt. Seas around 2 ft. .SAT...SE winds 5 to 10 kt. Seas around 2 ft. A chance of showers. .SAT NIGHT...S winds around 10 kt. Seas 2 to 3 ft. A chance of showers. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ233-192015- Vineyard Sound- 348 AM EDT Tue Jun 19 2018 .TODAY...NW winds 10 to 15 kt with gusts up to 20 kt, becoming W 5 to 10 kt this afternoon. Seas 2 to 4 ft. Scattered showers this morning. .TONIGHT...S winds 5 to 10 kt, becoming NW after midnight. Seas around 2 ft. .WED...W winds around 5 kt, becoming SW 10 to 15 kt in the afternoon. Seas around 2 ft. .WED NIGHT...SW winds 5 to 10 kt. Seas around 2 ft. A chance of showers. .THU...NW winds around 5 kt, becoming NE in the afternoon. Seas around 2 ft. .THU NIGHT...NE winds 5 to 10 kt. Seas 1 foot or less. .FRI...E winds 5 to 10 kt. Seas around 2 ft. .FRI NIGHT...SE winds 5 to 10 kt. Seas around 2 ft. .SAT...SE winds 5 to 10 kt. Seas around 2 ft. A chance of showers. .SAT NIGHT...S winds around 10 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. $$ ANZ234-192015- Buzzards Bay- 348 AM EDT Tue Jun 19 2018 .TODAY...NW winds 10 to 15 kt, diminishing to 5 to 10 kt this afternoon. Seas 2 to 3 ft. Scattered showers this morning. .TONIGHT...S winds 5 to 10 kt, becoming NW after midnight. Seas around 2 ft. .WED...SW winds around 5 kt, increasing to 10 to 15 kt with gusts up to 20 kt in the afternoon. Seas around 2 ft. .WED NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt, diminishing to 5 to 10 kt after midnight. Seas around 2 ft. A chance of showers. .THU...NW winds around 5 kt, becoming NE in the afternoon. Seas 1 foot or less. .THU NIGHT...E winds 5 to 10 kt, becoming NE after midnight. Seas 1 foot or less. .FRI...E winds 5 to 10 kt. Seas 1 foot or less. .FRI NIGHT...S winds 5 to 10 kt. Seas 1 foot or less. .SAT...SE winds 5 to 10 kt. Seas around 2 ft. A chance of showers. .SAT NIGHT...S winds 5 to 10 kt. Seas around 2 ft. A chance of showers. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ235-192015- Rhode Island Sound- 348 AM EDT Tue Jun 19 2018 .TODAY...NW winds 10 to 15 kt with gusts up to 20 kt, becoming W 5 to 10 kt this afternoon. Seas 3 to 5 ft. Scattered showers this morning. .TONIGHT...S winds 5 to 10 kt, becoming N after midnight. Seas 2 to 3 ft. .WED...E winds around 5 kt, becoming S 10 to 15 kt in the afternoon. Seas around 2 ft. .WED NIGHT...SW winds 10 to 15 kt, diminishing to 5 to 10 kt after midnight. Seas around 2 ft. A chance of showers. .THU...NW winds 5 to 10 kt, becoming E in the afternoon. Seas around 2 ft. A chance of showers. .THU NIGHT...NE winds 5 to 10 kt. Seas around 2 ft. .FRI...E winds 5 to 10 kt. Seas around 2 ft. .FRI NIGHT...SE winds 5 to 10 kt. Seas around 2 ft. .SAT...SE winds 5 to 10 kt. Seas 2 to 3 ft. A chance of showers. .SAT NIGHT...S winds around 10 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. $$ ANZ237-192015- Block Island Sound- 348 AM EDT Tue Jun 19 2018 .TODAY...W winds 5 to 10 kt. Gusts up to 20 kt this morning. Seas 3 to 5 ft. Areas of fog this morning. Scattered showers this morning with vsby 1 to 3 NM. .TONIGHT...N winds 5 to 10 kt. Seas 2 to 3 ft. .WED...E winds around 5 kt, becoming S in the afternoon. Seas around 2 ft. .WED NIGHT...SW winds 5 to 10 kt. Seas around 2 ft. A chance of showers. .THU...N winds around 5 kt, becoming E in the afternoon. Seas around 2 ft. A chance of showers. .THU NIGHT...NE winds 5 to 10 kt. Seas around 2 ft. .FRI...E winds 5 to 10 kt. Seas around 2 ft. .FRI NIGHT...SE winds 5 to 10 kt. Seas around 2 ft. .SAT...SE winds 5 to 10 kt. Seas 2 to 3 ft. A chance of showers. .SAT NIGHT...S winds 5 to 10 kt. Seas 2 to 3 ft. A chance of showers. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ230-192015- Boston Harbor- 348 AM EDT Tue Jun 19 2018 .TODAY...NW winds 5 to 10 kt with gusts up to 20 kt. Waves 1 foot or less. .TONIGHT...NW winds around 5 kt. Waves 1 foot or less. .WED...SW winds 5 to 10 kt. Waves 1 foot or less. .WED NIGHT...SW winds 5 to 10 kt. Waves 1 foot or less. .THU...N winds 5 to 10 kt, becoming E in the afternoon. Waves 1 foot or less. .THU NIGHT...SE winds around 5 kt, becoming W around 5 kt after midnight. Waves 1 foot or less. .FRI...E winds around 5 kt. Waves 1 foot or less. .FRI NIGHT...S winds around 5 kt. Waves 1 foot or less. .SAT...S winds 5 to 10 kt. Waves 1 foot or less. A chance of showers. .SAT NIGHT...S winds 5 to 10 kt. Waves 1 foot or less. 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. $$ ANZ236-192015- Narragansett Bay- 348 AM EDT Tue Jun 19 2018 .TODAY...NW winds 5 to 10 kt. Waves 2 to 3 ft. Scattered showers this morning. .TONIGHT...N winds 5 to 10 kt, diminishing to around 5 kt after midnight. Waves around 2 ft. .WED...E winds around 5 kt, becoming S in the afternoon. Waves around 2 ft. .WED NIGHT...SW winds 5 to 10 kt. Waves around 2 ft. A chance of showers. .THU...NW winds around 5 kt, becoming E in the afternoon. Waves 1 foot or less. .THU NIGHT...E winds 5 to 10 kt, becoming NE after midnight. Waves 1 foot or less. .FRI...E winds 5 to 10 kt. Waves 1 foot or less. .FRI NIGHT...S winds around 5 kt. Waves 1 foot or less. .SAT...SE winds 5 to 10 kt. Waves around 2 ft. A chance of showers. .SAT NIGHT...S winds 5 to 10 kt. Waves around 2 ft. A chance of showers. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ 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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