Coastal Waters Forecast
Issued by NWS Boston, MA

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748 FZUS51 KBOX 181704 CWFBOX Coastal Waters Forecast for Massachusetts and Rhode Island National Weather Service Boston/Norton MA 104 PM EDT Tue Jun 18 2024 Coastal waters from the Merrimack River MA to Watch Hill RI out to 25 NM ANZ200-190600- 104 PM EDT Tue Jun 18 2024 .Synopsis for Massachusetts and Rhode Island coastal waters... High pres remains anchored over the far eastern outer waters through the rest of the workweek. This will maintain SSW wind gusts 20-25 knots on most waters through the workweek. Dry weather is expected until later Fri. $$ ANZ250-190600- Coastal waters east of Ipswich Bay and the Stellwagen Bank National Marine Sanctuary- 104 PM EDT Tue Jun 18 2024 .THIS AFTERNOON...S winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Wave Detail: S 2 ft at 4 seconds and SE 2 ft at 11 seconds. .TONIGHT...SW winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 3 ft. Wave Detail: S 3 ft at 4 seconds and SE 2 ft at 11 seconds. .WED...SW winds 10 to 15 kt, becoming S 15 to 20 kt in the afternoon. Gusts up to 25 kt. Seas 2 to 4 ft. Wave Detail: S 3 ft at 4 seconds and SE 1 foot at 11 seconds. .WED NIGHT...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 4 ft. Wave Detail: S 3 ft at 5 seconds and SE 1 foot at 10 seconds. .THU AND THU NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. Wave Detail: SW 2 ft at 5 seconds and SE 2 ft at 9 seconds. .FRI AND FRI NIGHT...N winds 5 to 10 kt, becoming NE. Seas around 2 ft. Wave Detail: SW 2 ft at 4 seconds and SE 2 ft at 9 seconds. A chance of showers. .SAT...E winds 5 to 10 kt. Seas around 2 ft. .SAT NIGHT...S winds around 10 kt. Seas around 2 ft. A chance of showers. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ251-190600- Massachusetts Bay and Ipswich Bay- 104 PM EDT Tue Jun 18 2024 .THIS AFTERNOON...SE winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft. Wave Detail: S 2 ft at 4 seconds and E 1 foot at 12 seconds. .TONIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft. Wave Detail: S 2 ft at 4 seconds and E 1 foot at 11 seconds. .WED...SW winds 10 to 15 kt. Gusts up to 20 kt in the afternoon. Seas around 2 ft. Wave Detail: S 2 ft at 4 seconds and E 1 foot at 11 seconds. .WED NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Wave Detail: S 2 ft at 4 seconds and E 1 foot at 10 seconds. .THU AND THU NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft. Wave Detail: S 1 foot at 4 seconds and E 1 foot at 9 seconds. .FRI AND FRI NIGHT...N winds 5 to 10 kt, becoming NE. Seas 1 foot or less. Wave Detail: W 1 foot at 2 seconds and NE 1 foot at 2 seconds. A chance of showers. .SAT AND SAT NIGHT...E winds 5 to 10 kt, becoming SE. Seas 1 foot or less, then 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. $$ ANZ231-190600- Cape Cod Bay- 104 PM EDT Tue Jun 18 2024 .THIS AFTERNOON...SW winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft. Wave Detail: S 2 ft at 4 seconds and SE 1 foot at 11 seconds. .TONIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft. Wave Detail: S 2 ft at 4 seconds and SE 1 foot at 11 seconds. .WED...SW winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft. Wave Detail: S 2 ft at 4 seconds and SE 1 foot at 11 seconds. .WED NIGHT...SW winds 15 to 20 kt, diminishing to 10 to 15 kt after midnight. Seas around 2 ft. Wave Detail: SW 2 ft at 4 seconds and SE 1 foot at 10 seconds. .THU AND THU NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft. Wave Detail: SW 2 ft at 4 seconds and SE 1 foot at 9 seconds. .FRI AND FRI NIGHT...NW winds 5 to 10 kt, becoming NE. Seas around 2 ft, then 1 foot or less. Wave Detail: N 1 foot at 2 seconds and SW 1 foot at 3 seconds, becoming N 1 foot at 2 seconds and NW 1 foot at 3 seconds. A chance of showers. .SAT...SE winds 5 to 10 kt. Seas 1 foot or less. .SAT NIGHT...S winds 5 to 10 kt. Seas 1 foot or less. A chance of showers. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ254-190600- Coastal waters from Provincetown MA to Chatham MA to Nantucket MA out 20 nm- 104 PM EDT Tue Jun 18 2024 .THIS AFTERNOON...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 11 seconds. .TONIGHT...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 11 seconds. .WED...SW winds 10 to 15 kt, increasing to 15 to 20 kt in the afternoon. Seas 2 to 3 ft. Wave Detail: SW 3 ft at 4 seconds and SE 2 ft at 11 seconds. .WED NIGHT...SW winds around 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 10 seconds. Patchy fog after midnight with vsby 1 to 3 NM. .THU AND THU NIGHT...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 4 ft. Wave Detail: SW 3 ft at 5 seconds and SE 2 ft at 9 seconds. .FRI...W winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: SW 2 ft at 5 seconds and SE 2 ft at 8 seconds. .FRI NIGHT...W winds 5 to 10 kt. Seas 2 to 3 ft. A chance of showers. .SAT AND SAT NIGHT...S winds 5 to 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. $$ ANZ255-190600- Coastal Waters extending out to 25 nm South of Marthas Vineyard and Nantucket- 104 PM EDT Tue Jun 18 2024 .THIS AFTERNOON...SW winds 10 to 15 kt with gusts up to 20 kt. Seas around 3 ft. Wave Detail: S 3 ft at 6 seconds and SE 1 foot at 11 seconds. .TONIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Wave Detail: S 3 ft at 6 seconds and SE 2 ft at 11 seconds. .WED...SW winds 10 to 15 kt. Gusts up to 20 kt in the afternoon. Seas 2 to 3 ft. Wave Detail: SW 2 ft at 5 seconds and SE 2 ft at 10 seconds. .WED NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Wave Detail: SW 3 ft at 5 seconds and SE 2 ft at 10 seconds. Patchy fog. Vsby 1 to 3 NM. .THU AND THU NIGHT...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 4 ft. Wave Detail: SW 4 ft at 6 seconds and SE 2 ft at 9 seconds. .FRI...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Wave Detail: S 3 ft at 7 seconds. .FRI NIGHT AND SAT...W winds around 10 kt, becoming S. Seas 2 to 3 ft. A chance of showers. .SAT NIGHT...S winds around 10 kt. Seas 2 to 3 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ256-190600- Coastal Waters from Montauk NY to Marthas Vineyard extending out to 20 nm South of Block Island- 104 PM EDT Tue Jun 18 2024 .THIS AFTERNOON...SW winds 10 to 15 kt with gusts up to 20 kt. Seas around 3 ft. Wave Detail: S 3 ft at 5 seconds and SE 2 ft at 11 seconds. .TONIGHT...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 5 seconds and SE 2 ft at 11 seconds. .WED...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 4 seconds and SE 2 ft at 10 seconds. .WED NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas around 3 ft. Wave Detail: SW 2 ft at 4 seconds and SE 2 ft at 10 seconds. Patchy fog. Vsby 1 to 3 NM. .THU...SW winds 10 to 15 kt with gusts up to 20 kt. Seas around 3 ft. Wave Detail: SW 3 ft at 5 seconds and SE 2 ft at 9 seconds. Patchy fog in the morning with vsby 1 to 3 NM. .THU NIGHT...SW winds 15 to 20 kt. Seas 3 to 4 ft. Wave Detail: SW 3 ft at 5 seconds and SE 2 ft at 9 seconds. .FRI THROUGH SAT...SE winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. A chance of showers. .SAT 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. $$ ANZ232-190600- Nantucket Sound- 104 PM EDT Tue Jun 18 2024 .THIS AFTERNOON...SW winds 15 to 20 kt with gusts up to 25 kt. Seas around 2 ft. Wave Detail: S 2 ft at 4 seconds and SE 1 foot at 11 seconds. .TONIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft. Wave Detail: SW 2 ft at 4 seconds and SE 1 foot at 11 seconds. .WED...SW winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft. Wave Detail: S 2 ft at 4 seconds and SE 1 foot at 11 seconds. .WED NIGHT...SW winds around 15 kt with gusts up to 20 kt. Seas around 2 ft. Wave Detail: SW 2 ft at 4 seconds and SE 1 foot at 10 seconds. Patchy fog after midnight with vsby 1 to 3 NM. .THU AND THU NIGHT...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 3 ft. Wave Detail: SW 3 ft at 4 seconds and SE 1 foot at 9 seconds. .FRI THROUGH SAT...SE winds 10 to 15 kt. Seas around 2 ft. Wave Detail: SW 2 ft at 5 seconds and SE 1 foot at 8 seconds. A chance of showers. .SAT NIGHT...S winds around 10 kt. Seas around 2 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ233-190600- Vineyard Sound- 104 PM EDT Tue Jun 18 2024 .THIS AFTERNOON...SW winds 10 to 15 kt with gusts up to 25 kt. Seas around 2 ft. Wave Detail: SW 2 ft at 5 seconds and SE 1 foot at 11 seconds. .TONIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft. Wave Detail: SW 2 ft at 5 seconds and SE 1 foot at 11 seconds. .WED...SW winds 10 to 15 kt. Gusts up to 20 kt in the afternoon. Seas around 2 ft. Wave Detail: SW 2 ft at 4 seconds and SE 1 foot at 11 seconds. .WED NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft. Wave Detail: SW 2 ft at 4 seconds and SE 1 foot at 10 seconds. Patchy fog. Vsby 1 to 3 NM. .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. Wave Detail: SW 3 ft at 5 seconds and SE 1 foot at 9 seconds. Patchy fog in the morning with vsby 1 to 3 NM. .THU NIGHT...SW winds 15 to 20 kt, diminishing to 10 to 15 kt after midnight. Seas 2 to 4 ft. Wave Detail: SW 3 ft at 5 seconds and SE 1 foot at 9 seconds. .FRI THROUGH 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. $$ ANZ234-190600- Buzzards Bay- 104 PM EDT Tue Jun 18 2024 .THIS AFTERNOON...SW winds around 15 kt with gusts up to 25 kt. Seas around 2 ft. Wave Detail: SW 2 ft at 5 seconds and SE 1 foot at 11 seconds. .TONIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft. Wave Detail: SW 2 ft at 5 seconds and SE 1 foot at 11 seconds. .WED...SW winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft. Wave Detail: SW 2 ft at 4 seconds and SE 1 foot at 11 seconds. .WED NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft. Wave Detail: SW 2 ft at 4 seconds and SE 1 foot at 10 seconds. Patchy fog. Vsby 1 to 3 NM. .THU AND THU NIGHT...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 4 ft. Wave Detail: SW 3 ft at 5 seconds and SE 1 foot at 9 seconds. .FRI THROUGH SAT NIGHT...S winds 5 to 10 kt. Seas around 2 ft. Wave Detail: SW 2 ft at 5 seconds and SE 1 foot at 8 seconds. A chance of showers. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ235-190600- Rhode Island Sound- 104 PM EDT Tue Jun 18 2024 .THIS AFTERNOON...SW winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 3 ft. Wave Detail: SW 3 ft at 5 seconds and SE 1 foot at 11 seconds. .TONIGHT...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 5 seconds and SE 1 foot at 11 seconds. .WED...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 SE 1 foot at 11 seconds. .WED NIGHT...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 1 foot at 10 seconds. Patchy fog. Vsby 1 to 3 NM. .THU...SW winds 10 to 15 kt, increasing to 15 to 20 kt in the afternoon. Gusts up to 25 kt. Seas 2 to 3 ft. Wave Detail: SW 3 ft at 4 seconds and SE 2 ft at 9 seconds. Patchy fog in the morning with vsby 1 to 3 NM. .THU NIGHT...SW winds 15 to 20 kt, diminishing to 10 to 15 kt after midnight. Gusts up to 25 kt. Seas 2 to 3 ft. Wave Detail: SW 3 ft at 5 seconds and SE 2 ft at 8 seconds. .FRI THROUGH 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. $$ ANZ237-190600- Block Island Sound- 104 PM EDT Tue Jun 18 2024 .THIS AFTERNOON...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Wave Detail: SW 3 ft at 4 seconds and SE 1 foot at 11 seconds. .TONIGHT...SW winds 10 to 15 kt. Gusts up to 20 kt in the evening. Seas 2 to 3 ft. Wave Detail: SW 2 ft at 4 seconds and SE 1 foot at 11 seconds. .WED...SW winds 10 to 15 kt. Gusts up to 20 kt in the afternoon. Seas around 2 ft. Wave Detail: SW 2 ft at 4 seconds and SE 1 foot at 11 seconds. .WED NIGHT...SW winds 10 to 15 kt. Gusts up to 20 kt in the evening. Seas around 2 ft. Wave Detail: SW 2 ft at 4 seconds and SE 2 ft at 10 seconds. Patchy fog. Vsby 1 to 3 NM. .THU AND THU NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Wave Detail: SW 2 ft at 4 seconds and SE 2 ft at 9 seconds. .FRI...SW winds around 10 kt. Seas 2 to 3 ft. Wave Detail: SW 2 ft at 4 seconds and S 2 ft at 8 seconds. A chance of showers. .FRI NIGHT...S winds 5 to 10 kt. Seas around 2 ft. A chance of showers. .SAT AND SAT NIGHT...SE winds 5 to 10 kt. Seas around 2 ft. A chance of showers. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ230-190600- Boston Harbor- 104 PM EDT Tue Jun 18 2024 .THIS AFTERNOON...SE winds 5 to 10 kt. Waves 1 foot or less. .TONIGHT...SW winds 10 to 15 kt. Waves around 2 ft. .WED...SW winds 10 to 15 kt. Waves 1 foot or less, then around 2 ft in the afternoon. .WED NIGHT...SW winds 10 to 15 kt. Gusts up to 20 kt in the evening. Waves around 2 ft. .THU AND THU NIGHT...SW winds 5 to 10 kt. Waves around 2 ft. .FRI AND FRI NIGHT...N winds 5 to 10 kt, becoming E. Waves 1 foot or less. A chance of showers. .SAT AND SAT NIGHT...E winds 5 to 10 kt, becoming SE. 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. $$ ANZ236-190600- Narragansett Bay- 104 PM EDT Tue Jun 18 2024 .THIS AFTERNOON...SW winds 10 to 15 kt with gusts up to 20 kt. Waves around 2 ft. .TONIGHT...SW winds 10 to 15 kt with gusts up to 20 kt, diminishing to 5 to 10 kt after midnight. Waves around 2 ft. .WED...SW winds 5 to 10 kt, increasing to 10 to 15 kt with gusts up to 20 kt in the afternoon. Waves around 2 ft. .WED NIGHT...SW winds 10 to 15 kt. Waves around 2 ft. Patchy fog after midnight with vsby 1 to 3 NM. .THU AND THU NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Waves 2 to 3 ft. .FRI AND FRI NIGHT...SW winds 5 to 10 kt, becoming SE. Waves around 2 ft. A chance of showers. .SAT...SE winds 5 to 10 kt. Waves around 2 ft. .SAT NIGHT...S winds 5 to 10 kt. Waves around 2 ft. A chance of showers. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ 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