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Coastal Waters Forecast
Issued by NWS Boston, MA
Issued by NWS Boston, MA
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831 FZUS51 KBOX 010805 CWFBOX Coastal Waters Forecast for Massachusetts and Rhode Island National Weather Service Boston/Norton MA 405 AM EDT Mon Jul 1 2024 Coastal waters from the Merrimack River MA to Watch Hill RI out to 25 NM ANZ200-012100- 405 AM EDT Mon Jul 1 2024 .Synopsis for Massachusetts and Rhode Island coastal waters... An upper disturbance slides through the region today. This could bring some spotty showers and thunderstorms to the waters this afternoon. This will be followed by a high pres Tue and Wed. High pres moves farther offshore Thu, permitting a cold front to approach. $$ ANZ250-012100- Coastal waters east of Ipswich Bay and the Stellwagen Bank National Marine Sanctuary- 405 AM EDT Mon Jul 1 2024 .TODAY...N winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Wave Detail: N 3 ft at 4 seconds and SE 2 ft at 7 seconds. A slight chance of showers this afternoon. .TONIGHT...NW winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: N 2 ft at 4 seconds and SE 2 ft at 7 seconds. .TUE...N winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: N 2 ft at 4 seconds and SE 2 ft at 8 seconds. .TUE NIGHT...SW winds around 5 kt. Seas around 2 ft. Wave Detail: SE 2 ft at 8 seconds and NE 1 foot at 4 seconds. .WED AND WED NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Wave Detail: SW 2 ft at 3 seconds and SE 2 ft at 8 seconds. .THU THROUGH FRI...S winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. Wave Detail: SW 2 ft at 3 seconds and SE 2 ft at 8 seconds. .FRI NIGHT...S winds around 10 kt. Seas around 2 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ251-012100- Massachusetts Bay and Ipswich Bay- 405 AM EDT Mon Jul 1 2024 .TODAY...N winds 10 to 15 kt, diminishing to 5 to 10 kt this afternoon. Gusts up to 20 kt. Seas around 2 ft. Wave Detail: N 2 ft at 3 seconds and SE 2 ft at 7 seconds. A slight chance of showers. .TONIGHT...NW winds 5 to 10 kt. Seas around 2 ft. Wave Detail: N 2 ft at 4 seconds and SE 1 foot at 7 seconds. .TUE...N winds 5 to 10 kt, becoming NE in the afternoon. Seas around 2 ft. Wave Detail: NE 2 ft at 4 seconds and SE 1 foot at 8 seconds. .TUE NIGHT...S winds around 5 kt, becoming SW after midnight. Seas 1 foot or less. Wave Detail: SW 1 foot at 2 seconds and NE 1 foot at 4 seconds. .WED...SW winds around 5 kt, becoming S 10 to 15 kt in the afternoon. Seas 1 foot or less, then around 2 ft in the afternoon. Wave Detail: SW 1 foot at 2 seconds and NE 1 foot at 3 seconds, becoming SE 2 ft at 8 seconds and S 1 foot at 3 seconds. .WED NIGHT...S winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft. Wave Detail: S 2 ft at 3 seconds and SE 2 ft at 6 seconds. .THU THROUGH FRI NIGHT...S 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. $$ ANZ231-012100- Cape Cod Bay- 405 AM EDT Mon Jul 1 2024 .TODAY...N winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft. Wave Detail: N 2 ft at 4 seconds and SE 2 ft at 7 seconds. A slight chance of showers this afternoon. .TONIGHT...N winds 5 to 10 kt. Seas around 2 ft. Wave Detail: N 2 ft at 4 seconds and SE 2 ft at 7 seconds. .TUE...N winds 5 to 10 kt. Seas around 2 ft. Wave Detail: N 1 foot at 4 seconds and SE 1 foot at 7 seconds. .TUE NIGHT...SE winds around 5 kt, becoming W after midnight. Seas 1 foot or less. Wave Detail: N 1 foot at 4 seconds and SE 1 foot at 8 seconds. .WED AND WED NIGHT...SW winds 5 to 10 kt. Seas around 2 ft. Wave Detail: N 1 foot at 4 seconds and SE 1 foot at 8 seconds. .THU THROUGH FRI NIGHT...S winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft. Wave Detail: SW 2 ft at 3 seconds and SE 1 foot at 7 seconds. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ254-012100- Coastal waters from Provincetown MA to Chatham MA to Nantucket MA out 20 nm- 405 AM EDT Mon Jul 1 2024 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 6 AM EDT EARLY THIS MORNING... .TODAY...N winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 4 ft. Wave Detail: S 4 ft at 7 seconds and N 3 ft at 4 seconds. Patchy fog this morning. A slight chance of showers this morning with vsby 1 to 3 NM. .TONIGHT...N winds around 10 kt. Gusts up to 20 kt in the evening. Seas 3 to 4 ft. Wave Detail: S 3 ft at 7 seconds and N 2 ft at 5 seconds. .TUE...N winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: SE 3 ft at 7 seconds and N 2 ft at 4 seconds. .TUE NIGHT...NW winds around 5 kt. Seas 2 to 3 ft. Wave Detail: SE 2 ft at 8 seconds and N 1 foot at 4 seconds. .WED AND WED NIGHT...SW winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: SW 2 ft at 3 seconds and SE 2 ft at 8 seconds. .THU THROUGH FRI NIGHT...S winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. Wave Detail: SW 3 ft at 4 seconds and SE 3 ft at 9 seconds. 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. $$ ANZ255-012100- Coastal Waters extending out to 25 nm South of Marthas Vineyard and Nantucket- 405 AM EDT Mon Jul 1 2024 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 6 AM EDT EARLY THIS MORNING... .TODAY...NW winds 10 to 15 kt, becoming N 15 to 20 kt this afternoon. Seas 3 to 5 ft. Wave Detail: S 5 ft at 7 seconds and N 2 ft at 4 seconds. A slight chance of showers. Vsby 1 to 3 NM this morning. .TONIGHT...N winds 10 to 15 kt. Gusts up to 20 kt in the evening. Seas 2 to 4 ft. Wave Detail: S 4 ft at 7 seconds and N 2 ft at 4 seconds. .TUE...N winds 10 to 15 kt, becoming NE 5 to 10 kt in the afternoon. Seas 2 to 3 ft. Wave Detail: NE 2 ft at 4 seconds and S 2 ft at 7 seconds. .TUE NIGHT...NE winds 5 to 10 kt, becoming W after midnight. Seas 2 to 3 ft. Wave Detail: SE 2 ft at 7 seconds and N 1 foot at 4 seconds. .WED AND WED NIGHT...SW winds 10 to 15 kt. Seas around 2 ft. Wave Detail: SW 2 ft at 3 seconds and SE 2 ft at 7 seconds. .THU...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. Wave Detail: SW 3 ft at 4 seconds and SE 2 ft at 7 seconds. .THU NIGHT AND FRI...SW winds 10 to 15 kt. Gusts up to 20 kt. Seas 3 to 4 ft. A chance of showers. .FRI NIGHT...S winds around 10 kt. Seas 2 to 3 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ256-012100- Coastal Waters from Montauk NY to Marthas Vineyard extending out to 20 nm South of Block Island- 405 AM EDT Mon Jul 1 2024 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 6 AM EDT EARLY THIS MORNING... .TODAY...N winds 10 to 15 kt. Gusts up to 20 kt this afternoon. Seas 3 to 5 ft. Wave Detail: S 5 ft at 7 seconds and N 2 ft at 3 seconds. A slight chance of showers this afternoon. .TONIGHT...N winds 5 to 10 kt. Seas 2 to 4 ft. Wave Detail: S 4 ft at 7 seconds and N 2 ft at 5 seconds. .TUE...N winds 5 to 10 kt, becoming E in the afternoon. Seas 2 to 3 ft. Wave Detail: NE 2 ft at 3 seconds and SW 2 ft at 5 seconds. .TUE NIGHT...S winds around 5 kt, becoming W after midnight. Seas around 2 ft. Wave Detail: SE 2 ft at 8 seconds and NE 1 foot at 3 seconds. .WED AND WED NIGHT...SW winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: SW 2 ft at 3 seconds and SE 2 ft at 8 seconds. .THU THROUGH FRI...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. Wave Detail: SW 3 ft at 4 seconds and SE 2 ft at 8 seconds. .FRI 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. $$ ANZ232-012100- Nantucket Sound- 405 AM EDT Mon Jul 1 2024 .TODAY...N winds 10 to 15 kt, increasing to 15 to 20 kt this afternoon. Seas 2 to 3 ft. Wave Detail: N 2 ft at 3 seconds and S 2 ft at 7 seconds. A slight chance of showers this afternoon. .TONIGHT...N winds 10 to 15 kt. Gusts up to 20 kt in the evening. Seas 2 to 3 ft. Wave Detail: N 2 ft at 4 seconds and S 1 foot at 7 seconds. .TUE...N winds 5 to 10 kt. Seas around 2 ft. Wave Detail: N 1 foot at 5 seconds and SE 1 foot at 7 seconds. .TUE NIGHT...NE winds around 5 kt, becoming W after midnight. Seas around 2 ft in the evening, then 1 foot or less. Wave Detail: N 1 foot at 3 seconds and SE 1 foot at 8 seconds, becoming NE 1 foot at 4 seconds and SE 1 foot at 8 seconds. .WED AND WED NIGHT...SW winds 10 to 15 kt. Seas around 2 ft. Wave Detail: SW 2 ft at 3 seconds and NE 1 foot at 4 seconds. .THU...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 3 ft. Wave Detail: SW 3 ft at 4 seconds and SE 1 foot at 7 seconds. .THU NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. A chance of showers. .FRI AND FRI NIGHT...SW winds around 10 kt. Seas around 2 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ233-012100- Vineyard Sound- 405 AM EDT Mon Jul 1 2024 .TODAY...N winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Wave Detail: S 3 ft at 7 seconds and N 1 foot at 4 seconds. A chance of showers this afternoon. .TONIGHT...N winds 5 to 10 kt. Seas around 2 ft. Wave Detail: S 2 ft at 7 seconds and NE 1 foot at 3 seconds. .TUE...NE winds 5 to 10 kt. Seas around 2 ft in the morning, then 1 foot or less. Wave Detail: S 2 ft at 7 seconds and N 1 foot at 3 seconds, becoming NE 1 foot at 2 seconds and S 1 foot at 7 seconds. .TUE NIGHT...SE winds around 5 kt, becoming W after midnight. Seas 1 foot or less. Wave Detail: NE 1 foot at 2 seconds and S 1 foot at 7 seconds. .WED AND WED NIGHT...SW winds 10 to 15 kt. Seas around 2 ft. Wave Detail: SW 2 ft at 4 seconds and NE 1 foot at 3 seconds. .THU THROUGH FRI NIGHT...S winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 3 ft. Wave Detail: SW 3 ft at 4 seconds and SE 1 foot at 8 seconds. 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. $$ ANZ234-012100- Buzzards Bay- 405 AM EDT Mon Jul 1 2024 .TODAY...N winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft. Wave Detail: S 2 ft at 7 seconds and N 1 foot at 2 seconds. A chance of showers this afternoon. .TONIGHT...N winds 5 to 10 kt. Seas around 2 ft. Wave Detail: SW 2 ft at 7 seconds and NE 1 foot at 3 seconds. .TUE...NE winds 5 to 10 kt. Seas 1 foot or less. Wave Detail: N 1 foot at 3 seconds and W 1 foot at 5 seconds. .TUE NIGHT...SE winds around 5 kt, becoming W after midnight. Seas 1 foot or less. Wave Detail: NE 1 foot at 2 seconds and S 1 foot at 7 seconds. .WED AND WED NIGHT...SW winds 10 to 15 kt. Seas around 2 ft. Wave Detail: SW 2 ft at 3 seconds and NE 1 foot at 4 seconds. .THU AND THU NIGHT...SW winds 15 to 20 kt, diminishing to 10 to 15 kt. Gusts up to 25 kt. Seas 2 to 4 ft. Wave Detail: SW 3 ft at 4 seconds and SE 1 foot at 8 seconds. .FRI AND FRI NIGHT...SW winds 5 to 10 kt. Seas around 2 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ235-012100- Rhode Island Sound- 405 AM EDT Mon Jul 1 2024 .TODAY...N winds 10 to 15 kt. Gusts up to 20 kt this afternoon. Seas 3 to 4 ft. Wave Detail: S 4 ft at 7 seconds and N 1 foot at 3 seconds. A slight chance of showers this morning, then a chance of showers with isolated tstms this afternoon. .TONIGHT...NW winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: S 3 ft at 7 seconds and N 1 foot at 4 seconds. .TUE...N winds 5 to 10 kt, becoming E in the afternoon. Seas around 2 ft. Wave Detail: S 2 ft at 7 seconds and NE 1 foot at 2 seconds. .TUE NIGHT...S winds around 5 kt, becoming W after midnight. Seas around 2 ft in the evening, then 1 foot or less. Wave Detail: S 2 ft at 7 seconds and NE 1 foot at 2 seconds, becoming NE 1 foot at 2 seconds and SE 1 foot at 7 seconds. .WED AND WED NIGHT...SW winds 10 to 15 kt. Seas around 2 ft. Wave Detail: SW 2 ft at 3 seconds and SE 2 ft at 7 seconds. .THU THROUGH FRI...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Wave Detail: SW 3 ft at 4 seconds and SE 2 ft at 8 seconds. .FRI NIGHT...S winds around 10 kt. Seas 2 to 3 ft. A chance of showers. 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. $$ ANZ237-012100- Block Island Sound- 405 AM EDT Mon Jul 1 2024 .TODAY...N winds 10 to 15 kt, diminishing to 5 to 10 kt this afternoon. Seas 2 to 3 ft. Wave Detail: S 3 ft at 7 seconds and N 1 foot at 3 seconds. A slight chance of showers this morning, then a chance of showers with isolated tstms this afternoon. .TONIGHT...NW winds around 5 kt, becoming N after midnight. Seas 2 to 3 ft. Wave Detail: S 3 ft at 7 seconds and SW 1 foot at 2 seconds. .TUE...N winds 5 to 10 kt, becoming SE in the afternoon. Seas around 2 ft. Wave Detail: SE 2 ft at 7 seconds and NE 1 foot at 3 seconds. .TUE NIGHT...S winds around 5 kt, becoming W around 5 kt after midnight. Seas around 2 ft in the evening, then 1 foot or less. Wave Detail: SE 2 ft at 8 seconds and NE 1 foot at 3 seconds, becoming SE 1 foot at 7 seconds. .WED AND WED NIGHT...SW winds 10 to 15 kt. Seas around 2 ft. Wave Detail: SW 2 ft at 3 seconds and SE 2 ft at 8 seconds. .THU THROUGH FRI...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Wave Detail: S 3 ft at 9 seconds and SW 2 ft at 4 seconds. .FRI NIGHT...S winds 5 to 10 kt. Seas 2 to 3 ft. A chance of showers. Winds and seas higher in and near tstms. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ230-012100- Boston Harbor- 405 AM EDT Mon Jul 1 2024 .TODAY...N winds 10 to 15 kt, diminishing to 5 to 10 kt this afternoon. Waves 1 foot or less. A slight chance of showers this morning, then a chance of showers with isolated tstms this afternoon. .TONIGHT...NW winds 5 to 10 kt. Waves 1 foot or less. .TUE...N winds 5 to 10 kt, becoming E in the afternoon. Waves 1 foot or less. .TUE NIGHT...S winds around 5 kt, becoming SW after midnight. Waves 1 foot or less. .WED AND WED NIGHT...SW winds 10 to 15 kt. Waves around 2 ft. .THU THROUGH FRI NIGHT...S winds 10 to 15 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. $$ ANZ236-012100- Narragansett Bay- 405 AM EDT Mon Jul 1 2024 .TODAY...N winds 10 to 15 kt. Waves 2 to 3 ft. A slight chance of showers this morning, then a chance of showers with isolated tstms this afternoon. .TONIGHT...N winds 5 to 10 kt. Waves 2 to 3 ft. .TUE...N winds 5 to 10 kt, becoming E in the afternoon. Waves around 2 ft. .TUE NIGHT...S winds around 5 kt, becoming W after midnight. Waves 1 foot or less. .WED AND WED NIGHT...SW winds 5 to 10 kt. Waves around 2 ft. .THU THROUGH FRI NIGHT...S winds 10 to 15 kt with gusts up to 20 kt. Waves 2 to 3 ft. Winds and waves higher in and near tstms. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ 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