Coastal Waters Forecast
Issued by NWS Boston, MA
Issued by NWS Boston, MA
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627 FZUS51 KBOX 301103 CWFBOX Coastal Waters Forecast for Massachusetts and Rhode Island National Weather Service Boston/Norton MA 703 AM EDT Thu May 30 2024 Coastal waters from the Merrimack River MA to Watch Hill RI out to 25 NM ANZ200-310000- 703 AM EDT Thu May 30 2024 .Synopsis for Massachusetts and Rhode Island coastal waters... A wave of low pres tracks across the waters this morning bringing widespread rain and NE winds. A ridge of high pres then builds in from the west Fri into the weekend...bringing dry pleasant boating weather to the region. This high pres ridge will shift east of the region early next week. $$ ANZ250-310000- Coastal waters east of Ipswich Bay and the Stellwagen Bank National Marine Sanctuary- 703 AM EDT Thu May 30 2024 ...SMALL CRAFT ADVISORY IN EFFECT FROM 11 AM EDT THIS MORNING THROUGH THIS EVENING... .TODAY...NE winds 15 to 20 kt, diminishing to 10 to 15 kt this afternoon. Seas 2 to 4 ft, building to 4 to 5 ft this afternoon. Wave Detail: E 3 ft at 8 seconds, becoming N 3 ft at 6 seconds. Patchy fog. Showers. Vsby 1 to 3 NM. .TONIGHT...N winds 5 to 10 kt. Seas 3 to 5 ft, subsiding to 2 to 3 ft after midnight. Wave Detail: NE 3 ft at 6 seconds, becoming NE 2 ft at 7 seconds and N 1 foot at 3 seconds. A chance of showers in the evening. .FRI...N winds 5 to 10 kt, becoming SW in the afternoon. Seas 2 to 3 ft. Wave Detail: N 2 ft at 3 seconds and NE 2 ft at 7 seconds. .FRI NIGHT...SW winds 5 to 10 kt, becoming NW after midnight. Seas around 2 ft. Wave Detail: SE 2 ft at 7 seconds and W 1 foot at 3 seconds. .SAT...N winds around 10 kt, becoming E in the afternoon. Seas around 2 ft. Wave Detail: SE 2 ft at 7 seconds and NW 1 foot at 3 seconds. .SAT NIGHT...S winds 5 to 10 kt, becoming SW after midnight. Seas around 2 ft. Wave Detail: E 2 ft at 6 seconds and S 1 foot at 3 seconds. .SUN THROUGH MON NIGHT...SW winds 5 to 10 kt. Seas around 2 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ251-310000- Massachusetts Bay and Ipswich Bay- 703 AM EDT Thu May 30 2024 .TODAY...NE winds 15 to 20 kt. Seas 2 to 4 ft. Wave Detail: NE 3 ft at 8 seconds. Patchy fog. Showers with a slight chance of tstms this morning, then a chance of showers this afternoon. Some tstms may produce heavy rainfall this morning. Vsby 1 to 3 NM. .TONIGHT...N winds 5 to 10 kt. Seas 2 to 4 ft. Wave Detail: NE 3 ft at 6 seconds. .FRI...N winds 5 to 10 kt, becoming SE in the afternoon. Seas around 2 ft. Wave Detail: NE 2 ft at 6 seconds and N 1 foot at 3 seconds. .FRI NIGHT...SW winds 5 to 10 kt, becoming NW after midnight. Seas around 2 ft. Wave Detail: E 2 ft at 6 seconds and S 1 foot at 2 seconds. .SAT...N winds 5 to 10 kt, becoming E in the afternoon. Seas 1 foot or less. Wave Detail: NW 1 foot at 3 seconds and NE 1 foot at 6 seconds. .SAT NIGHT...S winds 5 to 10 kt, becoming SW after midnight. Seas 1 foot or less. Wave Detail: SE 1 foot at 3 seconds and E 1 foot at 6 seconds. .SUN THROUGH MON NIGHT...SW winds 5 to 10 kt. Seas around 2 ft. 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. $$ ANZ231-310000- Cape Cod Bay- 703 AM EDT Thu May 30 2024 .TODAY...NE winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. Wave Detail: E 2 ft at 6 seconds and N 1 foot at 2 seconds. Patchy fog. Showers likely, mainly this morning. Vsby 1 to 3 NM. .TONIGHT...N winds 5 to 10 kt. Gusts up to 20 kt in the evening. Seas 2 to 4 ft. Wave Detail: N 2 ft at 4 seconds. A chance of showers in the evening. .FRI...N winds 5 to 10 kt. Seas around 2 ft. Wave Detail: N 1 foot at 4 seconds. .FRI NIGHT...SW winds 5 to 10 kt, becoming NW after midnight. Seas 1 foot or less. Wave Detail: NW 1 foot at 3 seconds and NE 1 foot at 5 seconds. .SAT...N winds 5 to 10 kt, becoming NE in the afternoon. Seas 1 foot or less. Wave Detail: N 1 foot at 4 seconds. .SAT NIGHT...S winds 5 to 10 kt, becoming SW after midnight. Seas 1 foot or less. Wave Detail: S 1 foot at 2 seconds and NE 1 foot at 5 seconds. .SUN THROUGH MON NIGHT...SW winds 5 to 10 kt. Seas 1 foot or less. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ254-310000- Coastal waters from Provincetown MA to Chatham MA to Nantucket MA out 20 nm- 703 AM EDT Thu May 30 2024 ...SMALL CRAFT ADVISORY IN EFFECT FROM 11 AM EDT THIS MORNING THROUGH THIS EVENING... .TODAY...E winds 5 to 10 kt, becoming N 10 to 15 kt with gusts up to 20 kt this afternoon. Seas 2 to 3 ft, building to 3 to 5 ft this afternoon. Wave Detail: SE 3 ft at 8 seconds, becoming SE 3 ft at 8 seconds and NW 1 foot at 2 seconds. Patchy fog. A chance of showers. Vsby 1 NM or less. .TONIGHT...N winds around 10 kt. Seas 3 to 5 ft. Wave Detail: E 3 ft at 7 seconds and N 2 ft at 3 seconds. .FRI...N winds 5 to 10 kt. Seas 2 to 4 ft. Wave Detail: E 3 ft at 6 seconds and N 2 ft at 4 seconds. .FRI NIGHT...W winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: SE 2 ft at 6 seconds and NW 1 foot at 3 seconds. .SAT...N winds 5 to 10 kt. Seas around 2 ft. Wave Detail: E 2 ft at 6 seconds and NW 1 foot at 3 seconds. .SAT NIGHT...SW winds 5 to 10 kt. Seas around 2 ft. Wave Detail: E 2 ft at 6 seconds and W 1 foot at 3 seconds. .SUN THROUGH MON NIGHT...W 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. $$ ANZ255-310000- Coastal Waters extending out to 25 nm South of Marthas Vineyard and Nantucket- 703 AM EDT Thu May 30 2024 .TODAY...W winds 5 to 10 kt, becoming NW 10 to 15 kt with gusts up to 20 kt this afternoon. Seas 2 to 4 ft. Wave Detail: SE 3 ft at 7 seconds and NW 1 foot at 2 seconds. Patchy fog. A chance of showers this morning. A slight chance of showers this afternoon. Vsby 1 NM or less. .TONIGHT...N winds 10 to 15 kt. Gusts up to 20 kt in the evening. Seas 2 to 4 ft. Wave Detail: SE 3 ft at 7 seconds and NW 2 ft at 3 seconds. Patchy fog. Vsby 1 to 3 NM after midnight. .FRI...N winds 5 to 10 kt. Seas 2 to 4 ft. Wave Detail: NE 2 ft at 6 seconds and NW 1 foot at 3 seconds. .FRI NIGHT...W winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: SE 2 ft at 7 seconds and W 1 foot at 3 seconds. .SAT...N winds around 10 kt, becoming NE in the afternoon. Seas around 2 ft. Wave Detail: SE 2 ft at 7 seconds and NW 1 foot at 3 seconds. .SAT NIGHT...SW winds around 10 kt. Seas around 2 ft. Wave Detail: E 2 ft at 6 seconds and SW 1 foot at 3 seconds. .SUN THROUGH MON NIGHT...W winds around 10 kt. Seas 2 to 3 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ256-310000- Coastal Waters from Montauk NY to Marthas Vineyard extending out to 20 nm South of Block Island- 703 AM EDT Thu May 30 2024 .TODAY...NW winds 5 to 10 kt, becoming N 15 to 20 kt this afternoon. Seas 3 to 4 ft. Wave Detail: SE 3 ft at 8 seconds and NW 2 ft at 3 seconds. Patchy fog. A chance of showers, mainly this morning. Vsby 1 to 3 NM. .TONIGHT...N winds 10 to 15 kt with gusts up to 20 kt, diminishing to 5 to 10 kt after midnight. Seas 2 to 4 ft. Wave Detail: E 3 ft at 7 seconds and NW 2 ft at 4 seconds. .FRI...N winds 5 to 10 kt, becoming SW in the afternoon. Seas 2 to 3 ft. Wave Detail: E 2 ft at 7 seconds and NW 1 foot at 3 seconds. .FRI NIGHT...SW winds 5 to 10 kt, becoming NW after midnight. Seas around 2 ft. Wave Detail: SE 2 ft at 7 seconds and W 1 foot at 2 seconds. .SAT...N winds 5 to 10 kt, becoming SE in the afternoon. Seas around 2 ft. Wave Detail: SE 2 ft at 7 seconds and NW 1 foot at 3 seconds. .SAT NIGHT...SW winds 5 to 10 kt, becoming W after midnight. Seas around 2 ft. Wave Detail: SE 2 ft at 6 seconds and SW 1 foot at 3 seconds. .SUN THROUGH MON NIGHT...SW 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. $$ ANZ232-310000- Nantucket Sound- 703 AM EDT Thu May 30 2024 .TODAY...NW winds 5 to 10 kt, becoming N 10 to 15 kt with gusts up to 20 kt this afternoon. Seas 2 to 3 ft. Wave Detail: E 2 ft at 7 seconds and SW 1 foot at 2 seconds. Patchy fog. A chance of showers. Vsby 1 to 3 NM this morning. .TONIGHT...N winds 10 to 15 kt. Gusts up to 20 kt in the evening. Seas 2 to 3 ft. Wave Detail: N 2 ft at 4 seconds. .FRI...N winds around 10 kt, becoming NE in the afternoon. Seas around 2 ft. Wave Detail: NW 1 foot at 3 seconds and E 1 foot at 6 seconds. .FRI NIGHT...SW winds 5 to 10 kt, becoming NW after midnight. Seas around 2 ft in the evening, then 1 foot or less. Wave Detail: W 1 foot at 2 seconds and E 1 foot at 6 seconds, becoming W 1 foot at 3 seconds and E 1 foot at 7 seconds. .SAT...N winds 5 to 10 kt, becoming NE in the afternoon. Seas 1 foot or less. Wave Detail: NW 1 foot at 3 seconds and E 1 foot at 6 seconds. .SAT NIGHT...SW winds 5 to 10 kt, becoming W after midnight. Seas 1 foot or less. Wave Detail: S 1 foot at 2 seconds and E 1 foot at 5 seconds. .SUN THROUGH MON NIGHT...W winds around 10 kt. Seas around 2 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ233-310000- Vineyard Sound- 703 AM EDT Thu May 30 2024 .TODAY...NW winds 5 to 10 kt, becoming N 10 to 15 kt with gusts up to 20 kt this afternoon. Seas 2 to 3 ft. Wave Detail: NW 1 foot at 3 seconds and S 1 foot at 7 seconds. Patchy fog. A chance of showers, mainly this morning with vsby 1 to 3 NM. .TONIGHT...N 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: N 1 foot at 4 seconds. .FRI...N winds 5 to 10 kt, becoming E in the afternoon. Seas around 2 ft. Wave Detail: NW 1 foot at 3 seconds and E 1 foot at 5 seconds. .FRI NIGHT...SW winds 5 to 10 kt, becoming NW after midnight. Seas around 2 ft in the evening, then 1 foot or less. Wave Detail: SW 1 foot at 3 seconds and SE 1 foot at 6 seconds, becoming W 1 foot at 3 seconds and SE 1 foot at 7 seconds. .SAT...N winds 5 to 10 kt, becoming E in the afternoon. Seas 1 foot or less. Wave Detail: NW 1 foot at 3 seconds and SE 1 foot at 6 seconds. .SAT NIGHT...SW winds 5 to 10 kt, becoming W after midnight. Seas 1 foot or less. Wave Detail: S 1 foot at 3 seconds and SE 1 foot at 6 seconds. .SUN THROUGH MON NIGHT...SW winds 5 to 10 kt. Seas 1 foot or less. 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. $$ ANZ234-310000- Buzzards Bay- 703 AM EDT Thu May 30 2024 .TODAY...N winds 5 to 10 kt, increasing to 10 to 15 kt with gusts up to 20 kt this afternoon. Seas around 2 ft. Wave Detail: NW 1 foot at 3 seconds and S 1 foot at 7 seconds. Patchy fog. Showers likely this morning. A chance of showers this afternoon. Vsby 1 to 3 NM. .TONIGHT...N winds 5 to 10 kt. Gusts up to 20 kt in the evening. Seas around 2 ft. Wave Detail: N 1 foot at 4 seconds. .FRI...N winds 5 to 10 kt, becoming E in the afternoon. Seas 1 foot or less. Wave Detail: N 1 foot at 4 seconds. .FRI NIGHT...SW winds 5 to 10 kt, becoming NW after midnight. Seas around 2 ft in the evening, then 1 foot or less. Wave Detail: SW 1 foot at 2 seconds and SE 1 foot at 6 seconds, becoming W 1 foot at 3 seconds and SE 1 foot at 6 seconds. .SAT...N winds 5 to 10 kt, becoming E in the afternoon. Seas 1 foot or less. Wave Detail: NW 1 foot at 3 seconds and E 1 foot at 6 seconds. .SAT NIGHT...SW winds 5 to 10 kt. Seas 1 foot or less. Wave Detail: S 1 foot at 3 seconds and SE 1 foot at 6 seconds. .SUN THROUGH MON NIGHT...SW winds 5 to 10 kt. Seas 1 foot or less. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ235-310000- Rhode Island Sound- 703 AM EDT Thu May 30 2024 .TODAY...NW winds 5 to 10 kt, becoming N 10 to 15 kt with gusts up to 20 kt this afternoon. Seas 2 to 3 ft. Wave Detail: SE 3 ft at 7 seconds and NW 2 ft at 3 seconds. Patchy fog. Showers likely, mainly this morning with vsby 1 to 3 NM. .TONIGHT...N 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: E 3 ft at 7 seconds and NW 2 ft at 3 seconds. .FRI...N winds 5 to 10 kt, becoming S in the afternoon. Seas around 2 ft. Wave Detail: E 2 ft at 7 seconds and NW 1 foot at 3 seconds. .FRI NIGHT...SW winds 5 to 10 kt, becoming NW after midnight. Seas around 2 ft. Wave Detail: SE 2 ft at 7 seconds and SW 1 foot at 3 seconds. .SAT...N winds 5 to 10 kt, becoming SE in the afternoon. Seas 1 foot or less. Wave Detail: NW 1 foot at 3 seconds and SE 1 foot at 7 seconds. .SAT NIGHT...SW winds around 10 kt. Seas 1 foot or less. Wave Detail: S 1 foot at 3 seconds and SE 1 foot at 6 seconds. .SUN THROUGH MON 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. $$ ANZ237-310000- Block Island Sound- 703 AM EDT Thu May 30 2024 .TODAY...NW winds 10 to 15 kt, becoming N with gusts up to 20 kt this afternoon. Seas 2 to 3 ft. Wave Detail: SE 3 ft at 7 seconds and NW 1 foot at 2 seconds. Patchy fog. Showers likely, mainly this morning with vsby 1 to 3 NM. .TONIGHT...N winds 5 to 10 kt. Gusts up to 20 kt in the evening. Seas 2 to 3 ft. Wave Detail: NE 3 ft at 7 seconds and NW 1 foot at 3 seconds. .FRI...N winds 5 to 10 kt, becoming S in the afternoon. Seas around 2 ft. Wave Detail: E 2 ft at 7 seconds and NW 1 foot at 2 seconds. .FRI NIGHT...SW winds 5 to 10 kt, becoming NW after midnight. Seas around 2 ft. Wave Detail: SE 2 ft at 7 seconds and SW 1 foot at 2 seconds. .SAT...N winds 5 to 10 kt, becoming SE in the afternoon. Seas 1 foot or less. Wave Detail: NW 1 foot at 2 seconds and SE 1 foot at 7 seconds. .SAT NIGHT...S winds 5 to 10 kt, becoming SW after midnight. Seas 1 foot or less. Wave Detail: S 1 foot at 3 seconds and SE 1 foot at 7 seconds. .SUN THROUGH MON NIGHT...SW winds 5 to 10 kt. Seas around 2 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ230-310000- Boston Harbor- 703 AM EDT Thu May 30 2024 .TODAY...N winds 10 to 15 kt with gusts up to 20 kt. Waves around 2 ft. Patchy fog. Showers with a chance of tstms this morning, then showers likely this afternoon. Some tstms may produce heavy rainfall this morning. Vsby 1 to 3 NM. .TONIGHT...N winds 5 to 10 kt. Waves 1 foot or less. .FRI...N winds 5 to 10 kt, becoming E in the afternoon. Waves 1 foot or less. .FRI NIGHT...SW winds 5 to 10 kt, becoming NW after midnight. Waves 1 foot or less. .SAT...N winds 5 to 10 kt, becoming E in the afternoon. Waves 1 foot or less. .SAT NIGHT...S winds 5 to 10 kt, becoming SW after midnight. Waves 1 foot or less. .SUN THROUGH MON NIGHT...SW winds 5 to 10 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. $$ ANZ236-310000- Narragansett Bay- 703 AM EDT Thu May 30 2024 .TODAY...N winds 10 to 15 kt. Gusts up to 20 kt this afternoon. Waves around 2 ft. Patchy fog. Showers with a slight chance of tstms this morning, then a chance of showers this afternoon. Some tstms may produce heavy rainfall this morning with vsby 1 to 3 NM. .TONIGHT...N winds 5 to 10 kt. Waves around 2 ft. .FRI...N winds 5 to 10 kt, becoming S in the afternoon. Waves around 2 ft. .FRI NIGHT...SW winds 5 to 10 kt, becoming NW after midnight. Waves around 2 ft in the evening, then 1 foot or less. .SAT...N winds around 5 kt, becoming E in the afternoon. Waves 1 foot or less. .SAT NIGHT...SW winds 5 to 10 kt. Waves 1 foot or less. .SUN THROUGH MON NIGHT...SW winds 5 to 10 kt. Waves around 2 ft. Winds and waves higher in and near tstms. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ 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