Coastal Waters Forecast
Issued by NWS Boston, MA
Issued by NWS Boston, MA
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848 FZUS51 KBOX 101104 CWFBOX Coastal Waters Forecast for Massachusetts and Rhode Island National Weather Service Boston/Norton MA 703 AM EDT Thu Oct 10 2024 Coastal waters from the Merrimack River MA to Watch Hill RI out to 25 NM ANZ200-110000- 703 AM EDT Thu Oct 10 2024 .Synopsis for Massachusetts and Rhode Island coastal waters... High pres builds over the Gt Lakes today then moves to the mid Atlc region on Fri. Another cold front will move across the waters Sat. High pres moves E of the waters Sun as low pres approaches from Gt Lakes. The low pres will track to the north Sun night into Mon with a cold front crossing the waters Mon. Strong low pres will set up across eastern Canada Tue. $$ ANZ250-110000- Coastal waters east of Ipswich Bay and the Stellwagen Bank National Marine Sanctuary- 703 AM EDT Thu Oct 10 2024 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH FRIDAY MORNING... .TODAY...NW winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to 4 ft. Wave Detail: NW 4 ft at 4 seconds and E 3 ft at 11 seconds. A slight chance of showers this morning. .TONIGHT...NW winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to 5 ft. Wave Detail: N 5 ft at 5 seconds and E 2 ft at 10 seconds. .FRI...NW winds 15 to 20 kt, becoming W 10 to 15 kt in the afternoon. Seas 2 to 4 ft. Wave Detail: N 4 ft at 5 seconds and E 2 ft at 11 seconds. .FRI NIGHT...W winds 10 to 15 kt, becoming SW 15 to 20 kt after midnight. Gusts up to 25 kt. Seas 2 to 4 ft. Wave Detail: SW 4 ft at 4 seconds and E 2 ft at 12 seconds. .SAT AND SAT NIGHT...NW winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to 5 ft. Wave Detail: W 4 ft at 4 seconds and SE 2 ft at 11 seconds. .SUN...W winds 5 to 10 kt. Seas 2 to 4 ft. Wave Detail: NW 3 ft at 5 seconds and SE 2 ft at 13 seconds. A chance of showers. .SUN NIGHT...S winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. Showers. .MON...SW winds around 15 kt with gusts up to 20 kt. Seas 3 to 5 ft. Showers likely. .MON NIGHT...W winds around 15 kt with gusts up to 20 kt. Seas 3 to 5 ft. A chance of showers. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ251-110000- Massachusetts Bay and Ipswich Bay- 703 AM EDT Thu Oct 10 2024 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH FRIDAY MORNING... .TODAY...NW winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 3 ft. Wave Detail: N 3 ft at 4 seconds and E 3 ft at 11 seconds. .TONIGHT...NW winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 3 ft. Wave Detail: N 3 ft at 5 seconds and E 2 ft at 10 seconds. .FRI...NW winds 15 to 20 kt with gusts up to 25 kt, becoming W 10 to 15 kt in the afternoon. Seas 2 to 3 ft. Wave Detail: N 3 ft at 5 seconds and E 2 ft at 11 seconds. .FRI NIGHT...W winds 10 to 15 kt, becoming SW 15 to 20 kt after midnight. Seas 2 to 3 ft. Wave Detail: SW 3 ft at 3 seconds and N 1 foot at 5 seconds. .SAT AND SAT NIGHT...NW winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 3 ft. Wave Detail: W 3 ft at 3 seconds and N 1 foot at 4 seconds. .SUN...W winds 5 to 10 kt. Seas around 2 ft. Wave Detail: N 2 ft at 4 seconds and E 1 foot at 13 seconds. A chance of showers. .SUN NIGHT AND MON...S winds 10 to 15 kt, becoming SW. Gusts up to 20 kt. Seas 2 to 4 ft. Showers likely. .MON NIGHT...W 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. $$ ANZ231-110000- Cape Cod Bay- 703 AM EDT Thu Oct 10 2024 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH FRIDAY MORNING... .TODAY...NW winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 3 ft. Wave Detail: N 3 ft at 5 seconds and E 2 ft at 11 seconds. .TONIGHT...NW winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to 4 ft. Wave Detail: N 3 ft at 5 seconds and E 1 foot at 10 seconds. .FRI...NW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Wave Detail: N 3 ft at 5 seconds and E 1 foot at 11 seconds. .FRI NIGHT...W winds 10 to 15 kt, becoming SW 15 to 20 kt after midnight. Gusts up to 25 kt. Seas 2 to 4 ft. Wave Detail: NW 2 ft at 5 seconds and E 1 foot at 12 seconds. .SAT AND SAT NIGHT...NW winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 4 ft. Wave Detail: W 2 ft at 4 seconds and N 1 foot at 4 seconds. .SUN...W winds 5 to 10 kt. Seas around 2 ft. Wave Detail: N 2 ft at 4 seconds and SE 1 foot at 12 seconds. A chance of showers. .SUN NIGHT AND MON...S winds 10 to 15 kt, becoming SW. Gusts up to 20 kt. Seas 2 to 3 ft. Showers likely. .MON NIGHT...W winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. A chance of showers. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ254-110000- Coastal waters from Provincetown MA to Chatham MA to Nantucket MA out 20 nm- 703 AM EDT Thu Oct 10 2024 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH FRIDAY MORNING... .TODAY...NW winds 15 to 20 kt with gusts up to 25 kt. Seas 4 to 5 ft. Wave Detail: NW 4 ft at 4 seconds and E 3 ft at 11 seconds. A slight chance of showers this morning. .TONIGHT...NW winds 15 to 20 kt with gusts up to 25 kt. Seas 4 to 6 ft. Wave Detail: N 4 ft at 5 seconds and E 2 ft at 11 seconds. .FRI...NW winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 5 ft. Wave Detail: N 4 ft at 6 seconds and E 2 ft at 11 seconds. .FRI NIGHT...W winds 10 to 15 kt, increasing to 15 to 20 kt after midnight. Gusts up to 25 kt. Seas 3 to 5 ft. Wave Detail: SW 4 ft at 4 seconds and N 2 ft at 6 seconds. .SAT...W winds 15 to 20 kt with gusts up to 25 kt. Seas 4 to 6 ft. Wave Detail: W 4 ft at 5 seconds and SE 2 ft at 11 seconds. .SAT NIGHT...NW winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 5 ft. Wave Detail: N 3 ft at 5 seconds and SE 2 ft at 12 seconds. .SUN...W winds around 10 kt. Seas 2 to 4 ft. .SUN NIGHT...S winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 5 ft. Showers likely. .MON...SW winds around 15 kt with gusts up to 20 kt. Seas 4 to 6 ft. Showers likely. .MON NIGHT...W winds around 15 kt with gusts up to 20 kt. Seas 4 to 6 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. $$ ANZ255-110000- Coastal Waters extending out to 25 nm South of Marthas Vineyard and Nantucket- 703 AM EDT Thu Oct 10 2024 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH FRIDAY MORNING... .TODAY...NW winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 4 ft. Wave Detail: NW 4 ft at 5 seconds and E 3 ft at 11 seconds. .TONIGHT...NW winds 15 to 20 kt. Seas 3 to 5 ft. Wave Detail: N 4 ft at 5 seconds and E 2 ft at 11 seconds. .FRI...NW winds around 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. Wave Detail: N 3 ft at 5 seconds and SE 2 ft at 11 seconds. .FRI NIGHT...W winds 15 to 20 kt, increasing to 20 to 25 kt after midnight. Seas 3 to 5 ft. Wave Detail: W 5 ft at 6 seconds and S 2 ft at 11 seconds. .SAT...W winds 20 to 25 kt, diminishing to 15 to 20 kt in the afternoon. Seas 4 to 6 ft. Wave Detail: SW 6 ft at 6 seconds and SE 2 ft at 11 seconds. .SAT NIGHT...NW winds 10 to 15 kt. Gusts up to 20 kt in the evening. Seas 3 to 5 ft. Wave Detail: W 4 ft at 7 seconds and SE 2 ft at 12 seconds. .SUN...W winds around 10 kt. Seas 2 to 4 ft. .SUN NIGHT...S winds 15 to 20 kt. Seas 3 to 5 ft. Showers likely. .MON...SW winds 15 to 20 kt. Seas 5 to 7 ft. Showers likely. .MON NIGHT...W winds 15 to 20 kt. Seas 5 to 7 ft. A chance of showers. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ256-110000- Coastal Waters from Montauk NY to Marthas Vineyard extending out to 20 nm South of Block Island- 703 AM EDT Thu Oct 10 2024 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL NOON EDT TODAY... .TODAY...NW winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 4 ft. Wave Detail: N 4 ft at 5 seconds and E 3 ft at 11 seconds. .TONIGHT...NW winds 15 to 20 kt. Seas 3 to 4 ft. Wave Detail: N 4 ft at 4 seconds and E 2 ft at 10 seconds. .FRI...NW 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 10 seconds. .FRI NIGHT...W winds 15 to 20 kt, increasing to 20 to 25 kt after midnight. Seas 3 to 5 ft. Wave Detail: SW 5 ft at 5 seconds and S 2 ft at 11 seconds. .SAT...W winds 20 to 25 kt, diminishing to 15 to 20 kt in the afternoon. Seas 4 to 6 ft. Wave Detail: W 6 ft at 6 seconds and SE 2 ft at 11 seconds. .SAT NIGHT...NW winds 10 to 15 kt. Gusts up to 20 kt in the evening. Seas 2 to 4 ft. Wave Detail: NW 4 ft at 6 seconds and SE 2 ft at 12 seconds. .SUN...E winds 5 to 10 kt. Seas 2 to 3 ft. A chance of showers. .SUN NIGHT...S winds 15 to 20 kt. Seas 4 to 6 ft. Showers likely. .MON...SW winds 15 to 20 kt. Seas 6 to 7 ft. Showers likely. .MON NIGHT...NW winds 15 to 20 kt. Seas 5 to 7 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. $$ ANZ232-110000- Nantucket Sound- 703 AM EDT Thu Oct 10 2024 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL NOON EDT TODAY... .TODAY...NW winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 3 ft. Wave Detail: N 3 ft at 4 seconds and E 1 foot at 11 seconds. .TONIGHT...NW winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 3 ft. Wave Detail: N 2 ft at 4 seconds and E 1 foot at 11 seconds. .FRI...NW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Wave Detail: N 2 ft at 4 seconds and E 1 foot at 12 seconds. .FRI NIGHT...W winds 15 to 20 kt, increasing to 20 to 25 kt after midnight. Seas 2 to 3 ft. Wave Detail: SW 3 ft at 4 seconds and NE 1 foot at 5 seconds. .SAT AND SAT NIGHT...NW winds 20 to 25 kt. Seas 2 to 4 ft. Wave Detail: W 4 ft at 5 seconds and N 1 foot at 5 seconds. .SUN...W winds around 10 kt. Seas around 2 ft. Wave Detail: N 2 ft at 4 seconds and SE 1 foot at 12 seconds. A chance of showers. .SUN NIGHT AND MON...SW winds 15 to 20 kt. Seas 2 to 4 ft. Showers likely. .MON NIGHT...W winds 15 to 20 kt. Seas 2 to 4 ft. A chance of showers. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ233-110000- Vineyard Sound- 703 AM EDT Thu Oct 10 2024 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL NOON EDT TODAY... .TODAY...NW winds 15 to 20 kt, diminishing to 10 to 15 kt this afternoon. Gusts up to 25 kt. Seas 2 to 3 ft. Wave Detail: N 2 ft at 4 seconds and E 1 foot at 11 seconds. .TONIGHT...NW winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft. Wave Detail: N 2 ft at 5 seconds and SE 1 foot at 11 seconds. .FRI...W winds 10 to 15 kt. Gusts up to 20 kt in the morning. Seas around 2 ft. Wave Detail: N 2 ft at 5 seconds and S 1 foot at 11 seconds. .FRI NIGHT...W winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 4 ft. Wave Detail: SW 4 ft at 5 seconds and N 1 foot at 5 seconds. .SAT...W 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 S 1 foot at 13 seconds. .SAT NIGHT...NW winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: W 3 ft at 6 seconds and N 1 foot at 4 seconds. .SUN...W winds 5 to 10 kt. Seas 1 foot or less. A chance of showers. .SUN NIGHT...S winds 15 to 20 kt. Seas 2 to 4 ft. Showers likely. .MON...SW winds 15 to 20 kt. Seas 3 to 5 ft. Showers likely. .MON NIGHT...NW 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. $$ ANZ234-110000- Buzzards Bay- 703 AM EDT Thu Oct 10 2024 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL NOON EDT TODAY... .TODAY...NW winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 3 ft. Wave Detail: N 2 ft at 4 seconds and E 1 foot at 11 seconds. .TONIGHT...NW winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft. Wave Detail: N 2 ft at 4 seconds and SE 1 foot at 11 seconds. .FRI...W winds 10 to 15 kt. Gusts up to 20 kt in the morning. Seas around 2 ft. Wave Detail: N 2 ft at 4 seconds and SE 1 foot at 11 seconds. .FRI NIGHT...W winds 10 to 15 kt, increasing to 15 to 20 kt after midnight. Gusts up to 25 kt. Seas 2 to 3 ft. Wave Detail: SW 3 ft at 5 seconds and N 1 foot at 5 seconds. .SAT...W winds 15 to 20 kt, diminishing to 10 to 15 kt in the afternoon. Gusts up to 25 kt. Seas 2 to 4 ft. Wave Detail: SW 3 ft at 5 seconds and N 1 foot at 5 seconds. .SAT NIGHT...NW winds 10 to 15 kt with gusts up to 20 kt, diminishing to 5 to 10 kt after midnight. Seas around 2 ft. Wave Detail: NW 2 ft at 5 seconds and S 1 foot at 11 seconds. .SUN...W winds 5 to 10 kt. Seas 1 foot or less. A chance of showers. .SUN NIGHT AND MON...S winds 10 to 15 kt, becoming SW. Gusts up to 25 kt. Seas 2 to 4 ft. Showers likely. .MON NIGHT...W winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. A chance of showers. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ235-110000- Rhode Island Sound- 703 AM EDT Thu Oct 10 2024 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL NOON EDT TODAY... .TODAY...NW winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 3 ft. Wave Detail: N 3 ft at 4 seconds and SE 2 ft at 11 seconds. .TONIGHT...NW winds 15 to 20 kt, diminishing to 10 to 15 kt after midnight. Seas 2 to 3 ft. Wave Detail: N 3 ft at 4 seconds and SE 1 foot at 10 seconds. .FRI...NW winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft. Wave Detail: N 2 ft at 4 seconds and S 2 ft at 10 seconds. .FRI NIGHT...W winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 4 ft. Wave Detail: SW 4 ft at 5 seconds and S 2 ft at 10 seconds. .SAT...W winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to 5 ft. Wave Detail: SW 4 ft at 6 seconds and SE 2 ft at 11 seconds. .SAT NIGHT...NW winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: W 3 ft at 6 seconds and S 2 ft at 12 seconds. .SUN...E winds 5 to 10 kt. Seas around 2 ft. A chance of showers. .SUN NIGHT...S winds 15 to 20 kt. Seas 3 to 5 ft. Showers likely. .MON...SW winds 15 to 20 kt. Seas 4 to 6 ft. Showers likely. .MON NIGHT...NW winds around 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. $$ ANZ237-110000- Block Island Sound- 703 AM EDT Thu Oct 10 2024 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL NOON EDT TODAY... .TODAY...NW winds 15 to 20 kt, diminishing to 10 to 15 kt this afternoon. Gusts up to 25 kt. Seas 2 to 3 ft. Wave Detail: N 3 ft at 4 seconds and SE 2 ft at 12 seconds. .TONIGHT...NW winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 3 ft. Wave Detail: NW 2 ft at 4 seconds and SE 1 foot at 10 seconds. .FRI...NW winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft. Wave Detail: N 2 ft at 4 seconds and S 2 ft at 10 seconds. .FRI NIGHT...W winds 10 to 15 kt, increasing to 15 to 20 kt after midnight. Gusts up to 25 kt. Seas 2 to 4 ft. Wave Detail: W 3 ft at 4 seconds and S 2 ft at 10 seconds. .SAT...W winds 15 to 20 kt, diminishing to 10 to 15 kt in the afternoon. Gusts up to 25 kt. Seas 2 to 4 ft. Wave Detail: W 3 ft at 5 seconds and SE 2 ft at 11 seconds. .SAT NIGHT...NW winds 10 to 15 kt with gusts up to 20 kt, becoming N 5 to 10 kt after midnight. Seas 2 to 3 ft. Wave Detail: W 3 ft at 5 seconds and SE 2 ft at 12 seconds. .SUN...E winds 5 to 10 kt. Seas around 2 ft. A chance of showers. .SUN NIGHT AND MON...S winds 10 to 15 kt, becoming W. Gusts up to 20 kt. Seas 3 to 5 ft. Showers likely. .MON NIGHT...NW winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 5 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ230-110000- Boston Harbor- 703 AM EDT Thu Oct 10 2024 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS EVENING... .TODAY...NW winds around 15 kt with gusts up to 25 kt. Waves around 2 ft. .TONIGHT...NW winds 10 to 15 kt with gusts up to 25 kt. Waves around 2 ft. .FRI...W winds 10 to 15 kt. Gusts up to 20 kt in the morning. Waves around 2 ft. .FRI NIGHT...SW winds 10 to 15 kt. Gusts up to 20 kt after midnight. Waves around 2 ft. .SAT AND SAT NIGHT...NW winds 10 to 15 kt with gusts up to 20 kt. Waves around 2 ft. .SUN...W winds 5 to 10 kt. Waves 1 foot or less. A chance of showers. .SUN NIGHT AND MON...S winds 10 to 15 kt, becoming SW with gusts up to 20 kt. Waves around 2 ft. Showers likely. .MON NIGHT...W winds 10 to 15 kt with gusts up to 20 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. $$ ANZ236-110000- Narragansett Bay- 703 AM EDT Thu Oct 10 2024 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL NOON EDT TODAY... .TODAY...NW winds 10 to 15 kt with gusts up to 25 kt. Waves 2 to 3 ft. .TONIGHT...NW winds 10 to 15 kt with gusts up to 20 kt. Waves around 2 ft. .FRI...NW winds around 10 kt. Gusts up to 20 kt in the morning. Waves around 2 ft. .FRI NIGHT...W winds 10 to 15 kt. Gusts up to 20 kt after midnight. Waves 2 to 3 ft. .SAT AND SAT NIGHT...NW winds 10 to 15 kt with gusts up to 20 kt. Waves 2 to 4 ft. .SUN...W winds 5 to 10 kt. Waves around 2 ft. A chance of showers. .SUN NIGHT AND MON...S winds 10 to 15 kt, becoming SW. Gusts up to 20 kt. Waves 2 to 4 ft. Showers likely. .MON NIGHT...W winds 10 to 15 kt with gusts up to 20 kt. Waves 2 to 3 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ 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