Coastal Waters Forecast
Issued by NWS Boston, MA
Issued by NWS Boston, MA
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462 FZUS51 KBOX 021404 CWFBOX Coastal Waters Forecast for Massachusetts and Rhode Island National Weather Service Boston/Norton MA 1004 AM EDT Tue Jul 2 2024 Coastal waters from the Merrimack River MA to Watch Hill RI out to 25 NM ANZ200-030300- 1004 AM EDT Tue Jul 2 2024 .Synopsis for Massachusetts and Rhode Island coastal waters... Broad high pres over New York to build over the waters by Wed and remain in place thru Wed night. Weak cold front moves over the waters on Thu, with chances for showers and thunderstorms. Cold front stalls Fri, with low pres then moving west of the waters this weekend. $$ ANZ250-030300- Coastal waters east of Ipswich Bay and the Stellwagen Bank National Marine Sanctuary- 1004 AM EDT Tue Jul 2 2024 .THIS AFTERNOON...NE winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: N 2 ft at 4 seconds and SE 2 ft at 8 seconds. .TONIGHT...SW winds around 5 kt. Seas around 2 ft. Wave Detail: SE 2 ft at 8 seconds and NE 1 foot at 4 seconds. .WED...SW winds around 5 kt, becoming SE in the afternoon. Seas around 2 ft. Wave Detail: SE 2 ft at 8 seconds and SE 1 foot at 2 seconds. .WED NIGHT...S winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: SE 2 ft at 3 seconds and SE 2 ft at 8 seconds. .THU AND THU NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. Wave Detail: SW 2 ft at 3 seconds and E 2 ft at 8 seconds. .FRI AND FRI NIGHT...S winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: E 3 ft at 8 seconds and SW 1 foot at 3 seconds. .SAT AND SAT NIGHT...S winds 10 to 15 kt. Seas 2 to 3 ft. A chance of showers. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ251-030300- Massachusetts Bay and Ipswich Bay- 1004 AM EDT Tue Jul 2 2024 .THIS AFTERNOON...N winds 5 to 10 kt, becoming E. Seas around 2 ft. Wave Detail: NE 2 ft at 4 seconds and SE 1 foot at 8 seconds. .TONIGHT...S winds around 5 kt, becoming W after midnight. Seas around 2 ft. Wave Detail: NE 1 foot at 4 seconds and SE 1 foot at 8 seconds. .WED...SW winds around 5 kt, becoming SE in the afternoon. Seas around 2 ft. Wave Detail: E 2 ft at 9 seconds and SE 1 foot at 2 seconds. .WED NIGHT...S winds 10 to 15 kt. Seas around 2 ft. Wave Detail: SE 2 ft at 4 seconds and E 2 ft at 8 seconds. .THU...SW winds 10 to 15 kt. Gusts up to 20 kt in the afternoon. Seas around 2 ft. Wave Detail: S 2 ft at 3 seconds and E 2 ft at 8 seconds. A chance of showers in the afternoon. .THU NIGHT...SW winds 10 to 15 kt, diminishing to 5 to 10 kt after midnight. Seas around 2 ft. Wave Detail: S 2 ft at 3 seconds and E 2 ft at 8 seconds. .FRI AND FRI NIGHT...S winds 5 to 10 kt. Seas around 2 ft. .SAT AND SAT NIGHT...S winds 10 to 15 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. $$ ANZ231-030300- Cape Cod Bay- 1004 AM EDT Tue Jul 2 2024 .THIS AFTERNOON...N winds 5 to 10 kt. Seas around 2 ft. Wave Detail: N 2 ft at 3 seconds and SE 1 foot at 8 seconds. .TONIGHT...S winds around 5 kt, becoming W around 5 kt after midnight. Seas 1 foot or less. Wave Detail: N 1 foot at 4 seconds and SE 1 foot at 8 seconds. .WED...W winds around 5 kt, becoming SE in the afternoon. Seas 1 foot or less. Wave Detail: S 1 foot at 2 seconds and NE 1 foot at 4 seconds. .WED NIGHT...SW winds 5 to 10 kt. Seas 1 foot or less. Wave Detail: S 1 foot at 2 seconds and E 1 foot at 4 seconds. .THU AND THU NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft. Wave Detail: E 2 ft at 8 seconds and SW 1 foot at 2 seconds. .FRI THROUGH SAT...S winds 5 to 10 kt. Seas around 2 ft. Wave Detail: E 2 ft at 9 seconds and SW 1 foot at 2 seconds. .SAT NIGHT...S winds around 10 kt. Seas around 2 ft. A chance of showers. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ254-030300- Coastal waters from Provincetown MA to Chatham MA to Nantucket MA out 20 nm- 1004 AM EDT Tue Jul 2 2024 .THIS AFTERNOON...N winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: SE 3 ft at 7 seconds and NW 2 ft at 4 seconds. .TONIGHT...NW winds around 5 kt, becoming W around 5 kt after midnight. Seas 2 to 3 ft. Wave Detail: SE 2 ft at 7 seconds and N 1 foot at 4 seconds. .WED...W winds around 5 kt, becoming S in the afternoon. Seas around 2 ft. Wave Detail: SE 2 ft at 8 seconds and NE 1 foot at 5 seconds. .WED NIGHT...SW winds 5 to 10 kt. Seas around 2 ft. Wave Detail: E 2 ft at 8 seconds and SW 1 foot at 3 seconds. .THU...SW winds 10 to 15 kt. Gusts up to 20 kt in the afternoon. Seas 2 to 4 ft. Wave Detail: E 3 ft at 8 seconds and SW 2 ft at 3 seconds. .THU NIGHT...SW winds 10 to 15 kt. Gusts up to 20 kt in the evening. Seas 3 to 4 ft. Wave Detail: E 3 ft at 8 seconds and SW 2 ft at 4 seconds. A chance of showers after midnight. .FRI THROUGH SAT...S winds 10 to 15 kt. Seas 2 to 3 ft. .SAT NIGHT...S winds 10 to 15 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. $$ ANZ255-030300- Coastal Waters extending out to 25 nm South of Marthas Vineyard and Nantucket- 1004 AM EDT Tue Jul 2 2024 .THIS AFTERNOON...NE winds 5 to 10 kt. Gusts up to 20 kt. Seas 2 to 3 ft. Wave Detail: SW 3 ft at 7 seconds and NE 2 ft at 4 seconds. .TONIGHT...E winds around 5 kt, becoming W after midnight. Seas 2 to 3 ft. Wave Detail: S 2 ft at 7 seconds and NE 1 foot at 4 seconds. .WED...W winds around 5 kt, becoming SW in the afternoon. Seas around 2 ft. Wave Detail: E 2 ft at 6 seconds and S 1 foot at 2 seconds. .WED NIGHT...SW winds 5 to 10 kt. Seas around 2 ft. Wave Detail: SW 2 ft at 4 seconds and SE 2 ft at 8 seconds. .THU...SW winds 10 to 15 kt. Gusts up to 20 kt in the afternoon. Seas 2 to 3 ft. Wave Detail: SW 3 ft at 4 seconds and E 3 ft at 8 seconds. .THU NIGHT...SW winds 10 to 15 kt. Gusts up to 20 kt in the evening. Seas around 3 ft. Wave Detail: SW 3 ft at 4 seconds and E 3 ft at 8 seconds. A chance of showers after midnight. .FRI...SW winds around 10 kt. Seas 2 to 3 ft. A chance of showers. .FRI NIGHT AND SAT...S winds 10 to 15 kt. Gusts up to 20 kt. Seas 2 to 3 ft. .SAT NIGHT...S winds around 15 kt with gusts up to 20 kt. Seas 3 to 4 ft. A chance of showers. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ256-030300- Coastal Waters from Montauk NY to Marthas Vineyard extending out to 20 nm South of Block Island- 1004 AM EDT Tue Jul 2 2024 .THIS AFTERNOON...N winds around 10 kt, becoming E. Seas 2 to 3 ft. Wave Detail: NE 2 ft at 3 seconds and SW 2 ft at 7 seconds. .TONIGHT...S winds around 5 kt, becoming W around 5 kt after midnight. Seas around 2 ft. Wave Detail: SE 2 ft at 8 seconds and NE 1 foot at 3 seconds. .WED...W winds around 5 kt, becoming S in the afternoon. Seas around 2 ft. Wave Detail: SE 2 ft at 8 seconds and S 1 foot at 17 seconds. .WED NIGHT...SW winds around 10 kt. Seas around 2 ft. Wave Detail: SW 2 ft at 3 seconds and SE 2 ft at 8 seconds. .THU...SW winds 10 to 15 kt. Gusts up to 20 kt in the afternoon. Seas 2 to 4 ft. Wave Detail: SW 3 ft at 4 seconds and E 2 ft at 8 seconds. .THU NIGHT...SW winds 10 to 15 kt. Gusts up to 20 kt in the evening. Seas 3 to 4 ft. Wave Detail: SW 3 ft at 4 seconds and E 2 ft at 9 seconds. A chance of showers after midnight. .FRI...SW winds 5 to 10 kt. Seas around 3 ft. A chance of showers. .FRI NIGHT...S winds around 10 kt. Seas around 3 ft. .SAT...S winds 10 to 15 kt with gusts up to 20 kt. Seas around 3 ft. A chance of showers. .SAT NIGHT...S winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 5 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. $$ ANZ232-030300- Nantucket Sound- 1004 AM EDT Tue Jul 2 2024 .THIS AFTERNOON...NE winds 5 to 10 kt. Gusts up to 20 kt. Seas around 2 ft. Wave Detail: NE 1 foot at 3 seconds and W 1 foot at 6 seconds. .TONIGHT...E winds around 5 kt, becoming W around 5 kt after midnight. Seas around 2 ft. Wave Detail: NE 1 foot at 4 seconds and SW 1 foot at 5 seconds. .WED...W winds around 5 kt, becoming S in the afternoon. Seas 1 foot or less, then around 2 ft in the afternoon. Wave Detail: NE 1 foot at 5 seconds and SE 1 foot at 8 seconds, becoming SW 1 foot at 2 seconds and E 1 foot at 5 seconds. .WED NIGHT...SW winds around 10 kt. Seas around 2 ft in the evening, then 1 foot or less. Wave Detail: SW 1 foot at 3 seconds and E 1 foot at 5 seconds, becoming SW 1 foot at 3 seconds and E 1 foot at 7 seconds. .THU...SW winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft. Wave Detail: SW 2 ft at 3 seconds and E 1 foot at 8 seconds. .THU NIGHT...SW winds 10 to 15 kt. Gusts up to 20 kt in the evening. Seas around 2 ft. Wave Detail: SW 2 ft at 4 seconds and E 1 foot at 9 seconds. A chance of showers after midnight. .FRI...SW winds around 10 kt. Seas around 2 ft. A chance of showers. .FRI NIGHT AND SAT...S winds 10 to 15 kt. Gusts up to 20 kt. Seas around 2 ft. .SAT NIGHT...S winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. A chance of showers. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ233-030300- Vineyard Sound- 1004 AM EDT Tue Jul 2 2024 .THIS AFTERNOON...NE winds 5 to 10 kt. Seas around 2 ft. Wave Detail: S 2 ft at 7 seconds and NE 1 foot at 2 seconds. .TONIGHT...SE winds around 5 kt, becoming W after midnight. Seas around 2 ft in the evening, then 1 foot or less. Wave Detail: NE 1 foot at 3 seconds and S 1 foot at 7 seconds, becoming NE 1 foot at 4 seconds and S 1 foot at 7 seconds. .WED...W winds around 5 kt, becoming S in the afternoon. Seas 1 foot or less, then around 2 ft in the afternoon. Wave Detail: E 1 foot at 6 seconds, becoming S 1 foot at 2 seconds and SE 1 foot at 6 seconds. .WED NIGHT...SW winds around 10 kt. Seas around 2 ft in the evening, then 1 foot or less. Wave Detail: SW 1 foot at 3 seconds and E 1 foot at 5 seconds, becoming SW 1 foot at 3 seconds and SE 1 foot at 8 seconds. .THU...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Wave Detail: SW 2 ft at 4 seconds and SE 1 foot at 8 seconds. .THU NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt, diminishing to 5 to 10 kt after midnight. Seas 2 to 3 ft. Wave Detail: SW 2 ft at 4 seconds and SE 1 foot at 9 seconds. A chance of showers after midnight. .FRI...SW winds 5 to 10 kt. Seas around 2 ft. A chance of showers. .FRI NIGHT AND SAT...S winds 5 to 10 kt, increasing to 10 to 15 kt. Seas around 2 ft. .SAT NIGHT...S winds 10 to 15 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. $$ ANZ234-030300- Buzzards Bay- 1004 AM EDT Tue Jul 2 2024 .THIS AFTERNOON...NE winds 5 to 10 kt. Seas around 2 ft. Wave Detail: NE 1 foot at 2 seconds and S 1 foot at 7 seconds. .TONIGHT...SE winds around 5 kt, becoming W after midnight. Seas 1 foot or less. Wave Detail: NE 1 foot at 2 seconds and S 1 foot at 7 seconds. .WED...W winds around 5 kt, becoming S in the afternoon. Seas 1 foot or less. Wave Detail: NE 1 foot at 5 seconds and SE 1 foot at 8 seconds. .WED NIGHT...SW winds around 10 kt. Seas 1 foot or less. Wave Detail: SW 1 foot at 3 seconds and E 1 foot at 5 seconds. .THU...SW winds 10 to 15 kt with gusts up to 25 kt. Seas around 2 ft. Wave Detail: SW 2 ft at 3 seconds and SE 1 foot at 8 seconds. .THU NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt, diminishing to 5 to 10 kt after midnight. Seas around 2 ft. Wave Detail: SW 2 ft at 4 seconds and SE 1 foot at 9 seconds. A chance of showers after midnight. .FRI...SW winds 5 to 10 kt. Seas around 2 ft. A chance of showers. .FRI NIGHT AND SAT...S winds 5 to 10 kt, increasing to 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft. .SAT NIGHT...S winds 10 to 15 kt. Seas 2 to 3 ft. A chance of showers. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ235-030300- Rhode Island Sound- 1004 AM EDT Tue Jul 2 2024 .THIS AFTERNOON...N winds 5 to 10 kt, becoming E. Seas 2 to 3 ft. Wave Detail: SW 2 ft at 7 seconds and SE 2 ft at 8 seconds. .TONIGHT...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 2 seconds. .WED...W winds around 5 kt, becoming S in the afternoon. Seas around 2 ft. Wave Detail: SE 2 ft at 6 seconds and S 1 foot at 2 seconds. .WED NIGHT...SW winds around 10 kt. Seas around 2 ft. Wave Detail: SW 2 ft at 3 seconds and SE 2 ft at 8 seconds. .THU...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. .THU NIGHT...SW winds 10 to 15 kt. Gusts up to 20 kt in the evening. Seas 2 to 3 ft. Wave Detail: SW 3 ft at 4 seconds and SE 2 ft at 9 seconds. A chance of showers after midnight. .FRI...SW winds 5 to 10 kt. Seas 2 to 3 ft. A chance of showers. .FRI NIGHT...S winds around 10 kt. Seas 2 to 3 ft. .SAT...S winds 10 to 15 kt. Seas 2 to 3 ft. A chance of showers. .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. $$ ANZ237-030300- Block Island Sound- 1004 AM EDT Tue Jul 2 2024 .THIS AFTERNOON...NE winds 5 to 10 kt, becoming SE. Seas 2 to 3 ft. Wave Detail: S 2 ft at 7 seconds and NE 1 foot at 3 seconds. .TONIGHT...S winds around 5 kt, becoming W around 5 kt after midnight. Seas around 2 ft. Wave Detail: SE 2 ft at 8 seconds and NE 1 foot at 3 seconds. .WED...W winds around 5 kt, becoming S in the afternoon. Seas around 2 ft. Wave Detail: SE 2 ft at 8 seconds and S 1 foot at 2 seconds. .WED NIGHT...SW winds around 10 kt. Seas around 2 ft. Wave Detail: SW 2 ft at 3 seconds and SE 2 ft at 8 seconds. .THU...SW winds 10 to 15 kt. Gusts up to 20 kt in the afternoon. Seas 2 to 3 ft. Wave Detail: SW 2 ft at 3 seconds and SE 2 ft at 8 seconds. .THU NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt, diminishing to 5 to 10 kt after midnight. Seas 2 to 3 ft. Wave Detail: SW 2 ft at 4 seconds and SE 2 ft at 9 seconds. A chance of showers after midnight. .FRI THROUGH SAT NIGHT...S winds 5 to 10 kt. Seas 2 to 4 ft. A chance of showers. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ230-030300- Boston Harbor- 1004 AM EDT Tue Jul 2 2024 .THIS AFTERNOON...NE winds 5 to 10 kt, becoming E. Waves 1 foot or less. .TONIGHT...S winds around 5 kt, becoming SW after midnight. Waves 1 foot or less. .WED...SW winds around 5 kt, becoming SE in the afternoon. Waves 1 foot or less. .WED NIGHT...S winds 10 to 15 kt. Waves 1 foot or less. .THU...SW winds around 10 kt. Waves 1 foot or less. A chance of showers in the afternoon. .THU NIGHT...SW winds 5 to 10 kt. Waves 1 foot or less. .FRI AND FRI NIGHT...E winds 5 to 10 kt, becoming S. Waves 1 foot or less. .SAT AND SAT NIGHT...S winds 10 to 15 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. $$ ANZ236-030300- Narragansett Bay- 1004 AM EDT Tue Jul 2 2024 .THIS AFTERNOON...N winds 5 to 10 kt, becoming E. Waves around 2 ft. .TONIGHT...S winds around 5 kt, becoming W around 5 kt after midnight. Waves around 2 ft in the evening, then 1 foot or less. .WED...SW winds around 5 kt, becoming S in the afternoon. Waves 1 foot or less. .WED NIGHT...SW winds 5 to 10 kt. Waves around 2 ft. .THU...SW winds 10 to 15 kt. Gusts up to 20 kt in the afternoon. Waves 2 to 3 ft. .THU NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt, diminishing to 5 to 10 kt after midnight. Waves 2 to 3 ft. A chance of showers after midnight. .FRI...SW winds 5 to 10 kt. Waves around 2 ft. A chance of showers. .FRI NIGHT...S winds 5 to 10 kt. Waves around 2 ft. .SAT...S winds 5 to 10 kt. Waves 2 to 3 ft. A chance of showers. .SAT NIGHT...S winds around 10 kt. Waves 2 to 3 ft. A chance of showers. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ 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