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ANZ230 Boston HarborExpires:202505160300;;552385 FZUS51 KBOX 151405 CWFBOX Coastal Waters Forecast for Massachusetts and Rhode Island National Weather Service Boston/Norton MA 1005 AM EDT Thu May 15 2025 Coastal waters from the Merrimack River MA to Watch Hill RI out to 25 NM ANZ230-160300- Boston Harbor- 1005 AM EDT Thu May 15 2025 .THIS AFTERNOON...SE winds 5 to 10 kt. Waves 1 foot or less. Isolated showers. Vsby 1 to 3 NM. .TONIGHT...S winds around 5 kt. Waves 1 foot or less. Areas of fog. Vsby 1 NM or less. .FRI...S winds around 5 kt, becoming SE in the afternoon. Waves 1 foot or less. Areas of fog in the morning with vsby 1 NM or less. .FRI NIGHT...S winds 5 to 10 kt. Waves 1 foot or less. A chance of showers after midnight. .SAT...SE winds 5 to 10 kt. Waves 1 foot or less, then around 2 ft in the afternoon. A chance of showers in the morning, then showers likely in the afternoon. .SAT NIGHT...S winds 5 to 10 kt, becoming W after midnight. Waves around 2 ft in the evening, then 1 foot or less. Showers likely, mainly in the evening. .SUN THROUGH MON NIGHT...NW 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. $$
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ANZ231 Cape Cod BayExpires:202505160300;;552376 FZUS51 KBOX 151405 CWFBOX Coastal Waters Forecast for Massachusetts and Rhode Island National Weather Service Boston/Norton MA 1005 AM EDT Thu May 15 2025 Coastal waters from the Merrimack River MA to Watch Hill RI out to 25 NM ANZ231-160300- Cape Cod Bay- 1005 AM EDT Thu May 15 2025 .THIS AFTERNOON...SE winds 5 to 10 kt. Seas around 2 ft. Wave Detail: SE 2 ft at 8 seconds and SE 1 foot at 3 seconds. Isolated showers. Vsby 1 NM or less, increasing to 1 to 3 NM. .TONIGHT...S winds 5 to 10 kt, becoming SW after midnight. Seas around 2 ft. Wave Detail: SE 2 ft at 7 seconds and SE 1 foot at 3 seconds. Areas of fog. Vsby 1 NM or less. .FRI...S winds around 5 kt, increasing to 5 to 10 kt in the afternoon. Seas 1 foot or less. Wave Detail: E 1 foot at 4 seconds and SE 1 foot at 7 seconds. Areas of dense fog in the morning with vsby 1 NM or less. .FRI NIGHT...S winds 5 to 10 kt. Seas 1 foot or less. Wave Detail: SE 1 foot at 5 seconds and SE 1 foot at 8 seconds. .SAT...S winds 5 to 10 kt. Seas 1 foot or less, then around 2 ft in the afternoon. Wave Detail: SE 1 foot at 3 seconds and SE 1 foot at 8 seconds, becoming SE 2 ft at 7 seconds and SE 1 foot at 3 seconds. Showers likely in the afternoon. .SAT NIGHT...SW winds 5 to 10 kt. Seas around 2 ft. Wave Detail: SE 1 foot at 4 seconds and SE 1 foot at 7 seconds. A chance of showers. .SUN THROUGH MON NIGHT...NW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$
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ANZ232 Nantucket SoundExpires:202505160300;;552380 FZUS51 KBOX 151405 CWFBOX Coastal Waters Forecast for Massachusetts and Rhode Island National Weather Service Boston/Norton MA 1005 AM EDT Thu May 15 2025 Coastal waters from the Merrimack River MA to Watch Hill RI out to 25 NM ANZ232-160300- Nantucket Sound- 1005 AM EDT Thu May 15 2025 .THIS AFTERNOON...SE winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: S 2 ft at 7 seconds and SE 1 foot at 3 seconds. Scattered showers this morning. Vsby 1 to 3 NM. .TONIGHT...S winds around 5 kt. Seas around 2 ft. Wave Detail: S 2 ft at 8 seconds and E 1 foot at 5 seconds. Areas of fog. Vsby 1 NM or less. .FRI...S winds around 5 kt. Seas around 2 ft. Wave Detail: SE 2 ft at 8 seconds and SW 1 foot at 2 seconds. Areas of fog in the morning with vsby 1 NM or less. .FRI NIGHT...S winds around 5 kt. Seas around 2 ft in the evening, then 1 foot or less. Wave Detail: SE 2 ft at 7 seconds and SW 1 foot at 2 seconds, becoming SW 1 foot at 2 seconds and SE 1 foot at 7 seconds. .SAT...S winds 5 to 10 kt, increasing to 10 to 15 kt in the afternoon. Seas around 2 ft. Wave Detail: S 2 ft at 3 seconds and SE 1 foot at 7 seconds. A chance of showers in the afternoon. .SAT NIGHT...SW winds 10 to 15 kt. Seas around 2 ft. Wave Detail: SE 2 ft at 7 seconds and SW 1 foot at 3 seconds. A chance of showers in the evening. .SUN THROUGH MON NIGHT...NW 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. $$
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ANZ233 Vinyard SoundExpires:202505160300;;552381 FZUS51 KBOX 151405 CWFBOX Coastal Waters Forecast for Massachusetts and Rhode Island National Weather Service Boston/Norton MA 1005 AM EDT Thu May 15 2025 Coastal waters from the Merrimack River MA to Watch Hill RI out to 25 NM ANZ233-160300- Vineyard Sound- 1005 AM EDT Thu May 15 2025 .THIS AFTERNOON...SE winds around 10 kt, diminishing to around 5 kt. Seas 2 to 3 ft. Wave Detail: S 3 ft at 7 seconds and SE 1 foot at 3 seconds. Scattered showers this morning. Vsby 1 to 3 NM. .TONIGHT...S winds around 5 kt. Seas 2 to 3 ft. Wave Detail: S 3 ft at 8 seconds and E 1 foot at 3 seconds. Areas of fog. Vsby 1 NM or less. .FRI...S winds around 5 kt, becoming SW in the afternoon. Seas around 2 ft. Wave Detail: S 2 ft at 8 seconds and SW 1 foot at 2 seconds. Areas of fog in the morning with vsby 1 NM or less. .FRI NIGHT...S winds 5 to 10 kt. Seas around 2 ft. Wave Detail: S 2 ft at 7 seconds and SW 1 foot at 2 seconds. .SAT...S winds 5 to 10 kt, increasing to 10 to 15 kt in the afternoon. Seas around 2 ft. Wave Detail: S 2 ft at 6 seconds and S 1 foot at 2 seconds. A chance of showers in the morning, then showers likely in the afternoon. .SAT NIGHT...SW winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: S 2 ft at 7 seconds and SW 1 foot at 3 seconds. A chance of showers in the evening. .SUN THROUGH MON NIGHT...NW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$
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ANZ234 Buzzards BayExpires:202505160300;;552382 FZUS51 KBOX 151405 CWFBOX Coastal Waters Forecast for Massachusetts and Rhode Island National Weather Service Boston/Norton MA 1005 AM EDT Thu May 15 2025 Coastal waters from the Merrimack River MA to Watch Hill RI out to 25 NM ANZ234-160300- Buzzards Bay- 1005 AM EDT Thu May 15 2025 .THIS AFTERNOON...SE winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: S 3 ft at 7 seconds and SE 1 foot at 2 seconds. Isolated showers. Vsby 1 to 3 NM. .TONIGHT...S winds around 5 kt. Seas around 2 ft. Wave Detail: S 2 ft at 7 seconds and E 1 foot at 3 seconds. Areas of fog. Vsby 1 NM or less. .FRI...S winds around 5 kt, becoming SW in the afternoon. Seas around 2 ft in the morning, then 1 foot or less. Wave Detail: SE 2 ft at 6 seconds, becoming SW 1 foot at 2 seconds and E 1 foot at 4 seconds. Areas of fog in the morning with vsby 1 NM or less. .FRI NIGHT...S winds 5 to 10 kt. Seas 1 foot or less. Wave Detail: SW 1 foot at 2 seconds and SE 1 foot at 6 seconds. .SAT...S winds 5 to 10 kt, increasing to 10 to 15 kt in the afternoon. Seas 1 foot or less, then around 2 ft in the afternoon. Wave Detail: S 1 foot at 2 seconds and SE 1 foot at 3 seconds, becoming S 2 ft at 4 seconds and SE 2 ft at 7 seconds. A chance of showers in the morning, then showers likely in the afternoon. .SAT NIGHT...SW winds 10 to 15 kt. Seas around 2 ft. Wave Detail: S 2 ft at 7 seconds and SW 1 foot at 3 seconds. A chance of showers in the evening. .SUN THROUGH MON NIGHT...NW 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. $$
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ANZ235 Rhode Island SoundExpires:202505160300;;552383 FZUS51 KBOX 151405 CWFBOX Coastal Waters Forecast for Massachusetts and Rhode Island National Weather Service Boston/Norton MA 1005 AM EDT Thu May 15 2025 Coastal waters from the Merrimack River MA to Watch Hill RI out to 25 NM ANZ235-160300- Rhode Island Sound- 1005 AM EDT Thu May 15 2025 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 4 PM EDT THIS AFTERNOON... .THIS AFTERNOON...SE winds 5 to 10 kt. Seas 3 to 4 ft. Wave Detail: S 4 ft at 8 seconds. Isolated showers. Vsby 1 to 3 NM. .TONIGHT...S winds around 5 kt. Seas 2 to 4 ft. Wave Detail: S 4 ft at 8 seconds and S 1 foot at 5 seconds. Areas of fog. Vsby 1 NM or less. .FRI...SW winds around 5 kt, becoming S in the afternoon. Seas 2 to 3 ft. Wave Detail: S 3 ft at 8 seconds. Areas of fog in the morning with vsby 1 NM or less. .FRI NIGHT...S winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: SE 3 ft at 7 seconds. .SAT...S winds 5 to 10 kt, increasing to 10 to 15 kt in the afternoon. Seas 2 to 3 ft. Wave Detail: S 3 ft at 7 seconds. A chance of showers in the morning, then showers likely in the afternoon. .SAT NIGHT...SW winds 10 to 15 kt. Seas around 3 ft. Wave Detail: SE 3 ft at 7 seconds. A chance of showers in the evening. .SUN THROUGH MON NIGHT...NW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$
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ANZ236 Narragansett BayExpires:202505160300;;552386 FZUS51 KBOX 151405 CWFBOX Coastal Waters Forecast for Massachusetts and Rhode Island National Weather Service Boston/Norton MA 1005 AM EDT Thu May 15 2025 Coastal waters from the Merrimack River MA to Watch Hill RI out to 25 NM ANZ236-160300- Narragansett Bay- 1005 AM EDT Thu May 15 2025 .THIS AFTERNOON...SE winds around 5 kt. Waves 2 to 4 ft. Isolated showers. Vsby 1 to 3 NM. .TONIGHT...S winds around 5 kt. Waves 2 to 3 ft. Areas of fog. Vsby 1 NM or less. .FRI...S winds around 5 kt, increasing to 5 to 10 kt in the afternoon. Waves 2 to 3 ft. Areas of fog in the morning with vsby 1 NM or less. .FRI NIGHT...S winds around 5 kt. Waves around 2 ft. .SAT...S winds 5 to 10 kt. Waves 2 to 3 ft. A chance of showers in the morning, then showers likely in the afternoon. .SAT NIGHT...SW winds 5 to 10 kt. Waves 2 to 3 ft. A chance of showers in the evening. .SUN THROUGH MON NIGHT...NW 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. $$ For the latest updates...please visit our webpage at www.weather.gov/boston You can follow us on Facebook at www.facebook.com/NWSBoston You can follow us on Twitter at @NWSBoston
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ANZ237 Block Island SoundExpires:202505160300;;552384 FZUS51 KBOX 151405 CWFBOX Coastal Waters Forecast for Massachusetts and Rhode Island National Weather Service Boston/Norton MA 1005 AM EDT Thu May 15 2025 Coastal waters from the Merrimack River MA to Watch Hill RI out to 25 NM ANZ237-160300- Block Island Sound- 1005 AM EDT Thu May 15 2025 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 4 PM EDT THIS AFTERNOON... .THIS AFTERNOON...SE winds 5 to 10 kt. Seas 3 to 4 ft. Wave Detail: S 4 ft at 8 seconds. Isolated showers. Vsby 1 to 3 NM. .TONIGHT...S winds around 5 kt. Seas 2 to 4 ft. Wave Detail: S 4 ft at 8 seconds. Areas of fog. Vsby 1 NM or less. .FRI...SW winds around 5 kt, increasing to 5 to 10 kt in the afternoon. Seas 2 to 3 ft. Wave Detail: S 3 ft at 7 seconds. Areas of fog in the morning with vsby 1 NM or less. .FRI NIGHT...S winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: SE 3 ft at 8 seconds and S 1 foot at 7 seconds. A chance of showers after midnight. .SAT...S winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: S 3 ft at 7 seconds. A chance of showers in the morning. Showers likely in the afternoon. .SAT NIGHT...SW winds around 10 kt. Seas 2 to 3 ft. Wave Detail: S 3 ft at 7 seconds. A chance of showers in the evening. .SUN THROUGH MON NIGHT...NW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$
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ANZ250 Coastal waters east of Ipswich Bay and the Stellwagen Bank National Marine SanctuaryExpires:202505160300;;552374 FZUS51 KBOX 151405 CWFBOX Coastal Waters Forecast for Massachusetts and Rhode Island National Weather Service Boston/Norton MA 1005 AM EDT Thu May 15 2025 Coastal waters from the Merrimack River MA to Watch Hill RI out to 25 NM ANZ250-160300- Coastal waters east of Ipswich Bay and the Stellwagen Bank National Marine Sanctuary- 1005 AM EDT Thu May 15 2025 .THIS AFTERNOON...SE winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: SE 2 ft at 7 seconds and SE 1 foot at 4 seconds. Isolated showers. Vsby 1 NM or less, increasing to 1 to 3 NM. .TONIGHT...SE winds 5 to 10 kt, becoming S after midnight. Seas 2 to 3 ft. Wave Detail: SE 2 ft at 7 seconds. Areas of fog. Vsby 1 NM or less. .FRI...S winds around 5 kt, becoming SE in the afternoon. Seas 2 to 3 ft. Wave Detail: SE 3 ft at 7 seconds. Areas of fog in the morning with vsby 1 NM or less. .FRI NIGHT...S winds around 10 kt. Seas 2 to 3 ft. Wave Detail: SE 3 ft at 8 seconds. .SAT...SE winds 10 to 15 kt. Gusts up to 20 kt in the afternoon. Seas 2 to 4 ft. Wave Detail: SE 3 ft at 8 seconds and SE 2 ft at 4 seconds. Showers likely in the afternoon. .SAT NIGHT...S winds 10 to 15 kt with gusts up to 20 kt, becoming W after midnight. Seas 2 to 4 ft. Wave Detail: SE 3 ft at 7 seconds and SE 2 ft at 4 seconds. Showers likely, mainly in the evening. .SUN THROUGH MON NIGHT...NW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 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. $$
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ANZ251 Massachusetts Bay and Ipswich BayExpires:202505160300;;552375 FZUS51 KBOX 151405 CWFBOX Coastal Waters Forecast for Massachusetts and Rhode Island National Weather Service Boston/Norton MA 1005 AM EDT Thu May 15 2025 Coastal waters from the Merrimack River MA to Watch Hill RI out to 25 NM ANZ251-160300- Massachusetts Bay and Ipswich Bay- 1005 AM EDT Thu May 15 2025 .THIS AFTERNOON...SE winds 5 to 10 kt. Seas around 2 ft. Wave Detail: SE 1 foot at 3 seconds and SE 1 foot at 7 seconds. Isolated showers. Vsby 1 NM or less, increasing to 1 to 3 NM. .TONIGHT...SE winds 5 to 10 kt, becoming S after midnight. Seas around 2 ft. Wave Detail: SE 2 ft at 7 seconds and E 1 foot at 3 seconds. Areas of fog. Vsby 1 NM or less. .FRI...S winds around 5 kt, becoming SE in the afternoon. Seas around 2 ft. Wave Detail: SE 2 ft at 7 seconds. Areas of dense fog in the morning with vsby 1 NM or less. .FRI NIGHT...S winds 5 to 10 kt. Seas around 2 ft. Wave Detail: SE 2 ft at 8 seconds and E 1 foot at 4 seconds. .SAT...SE winds 5 to 10 kt, increasing to 10 to 15 kt in the afternoon. Seas 2 to 3 ft. Wave Detail: SE 2 ft at 4 seconds and SE 2 ft at 8 seconds. A chance of showers in the morning, then showers likely in the afternoon. .SAT NIGHT...S winds around 10 kt, becoming W after midnight. Seas 2 to 3 ft. Wave Detail: SE 2 ft at 4 seconds and SE 1 foot at 7 seconds. Showers likely, mainly in the evening. .SUN THROUGH MON NIGHT...NW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$
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ANZ254 Coastal waters from Provincetown MA to Chatham MA to Nantucket MA out 20 NMExpires:202505160300;;552377 FZUS51 KBOX 151405 CWFBOX Coastal Waters Forecast for Massachusetts and Rhode Island National Weather Service Boston/Norton MA 1005 AM EDT Thu May 15 2025 Coastal waters from the Merrimack River MA to Watch Hill RI out to 25 NM ANZ254-160300- Coastal waters from Provincetown MA to Chatham MA to Nantucket MA out 20 nm- 1005 AM EDT Thu May 15 2025 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT... .THIS AFTERNOON...SE winds around 10 kt. Seas 3 to 4 ft. Wave Detail: S 4 ft at 8 seconds. Scattered showers this morning. Vsby 1 NM or less, increasing to 1 to 3 NM. .TONIGHT...S winds 5 to 10 kt, diminishing to around 5 kt after midnight. Seas 3 to 4 ft. Wave Detail: S 4 ft at 8 seconds. Areas of fog. Vsby 1 NM or less. .FRI...S winds around 5 kt. Seas 2 to 4 ft. Wave Detail: SE 4 ft at 8 seconds. Areas of fog in the morning with vsby 1 NM or less. .FRI NIGHT...S winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: SE 3 ft at 8 seconds. .SAT...S winds 5 to 10 kt, increasing to 10 to 15 kt in the afternoon. Seas 2 to 4 ft. Wave Detail: S 3 ft at 6 seconds. A chance of showers in the afternoon. .SAT NIGHT...SW winds 10 to 15 kt. Seas 3 to 4 ft. Wave Detail: S 3 ft at 7 seconds. A chance of showers. .SUN THROUGH 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. $$
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ANZ255 Coastal waters extending out to 25 NM south of Martha’s Vineyard and NantucketExpires:202505160300;;552378 FZUS51 KBOX 151405 CWFBOX Coastal Waters Forecast for Massachusetts and Rhode Island National Weather Service Boston/Norton MA 1005 AM EDT Thu May 15 2025 Coastal waters from the Merrimack River MA to Watch Hill RI out to 25 NM ANZ255-160300- Coastal Waters extending out to 25 nm South of Marthas Vineyard and Nantucket- 1005 AM EDT Thu May 15 2025 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT... .THIS AFTERNOON...SE winds 5 to 10 kt. Seas 4 to 5 ft. Wave Detail: S 5 ft at 8 seconds. Scattered showers this morning. Vsby 1 to 3 NM. .TONIGHT...S winds 5 to 10 kt, becoming SW after midnight. Seas 3 to 5 ft. Wave Detail: S 4 ft at 8 seconds. Areas of fog. Vsby 1 NM or less. .FRI...SW winds around 5 kt. Seas 2 to 4 ft. Wave Detail: S 4 ft at 8 seconds. Areas of fog in the morning with vsby 1 NM or less. .FRI NIGHT...S winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: SE 3 ft at 7 seconds. .SAT...S winds 10 to 15 kt. Seas 2 to 4 ft. Wave Detail: S 3 ft at 7 seconds. A chance of showers in the afternoon. .SAT NIGHT...SW winds 10 to 15 kt. Seas 3 to 4 ft. Wave Detail: SE 4 ft at 7 seconds. A chance of showers in the evening. .SUN THROUGH MON NIGHT...N winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 5 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$
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ANZ256 Coastal waters from Montauk NY to Martha’s Vineyard extending out to 20 NM south of Block IslandExpires:202505160300;;552379 FZUS51 KBOX 151405 CWFBOX Coastal Waters Forecast for Massachusetts and Rhode Island National Weather Service Boston/Norton MA 1005 AM EDT Thu May 15 2025 Coastal waters from the Merrimack River MA to Watch Hill RI out to 25 NM ANZ256-160300- Coastal Waters from Montauk NY to Marthas Vineyard extending out to 20 nm South of Block Island- 1005 AM EDT Thu May 15 2025 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT... .THIS AFTERNOON...SE winds 5 to 10 kt. Seas 4 to 5 ft. Wave Detail: S 5 ft at 8 seconds. Isolated showers. Vsby 1 to 3 NM. .TONIGHT...S winds around 5 kt. Seas 3 to 5 ft. Wave Detail: S 5 ft at 8 seconds. Areas of fog. Vsby 1 NM or less. .FRI...SW winds around 5 kt. Seas 3 to 4 ft. Wave Detail: SE 4 ft at 8 seconds. Areas of fog in the morning with vsby 1 NM or less. .FRI NIGHT...S winds 5 to 10 kt. Seas around 3 ft. Wave Detail: SE 3 ft at 7 seconds. .SAT...S winds 5 to 10 kt, increasing to 10 to 15 kt in the afternoon. Seas 3 to 4 ft. Wave Detail: S 3 ft at 7 seconds. A chance of showers in the morning, then showers likely in the afternoon. .SAT NIGHT...SW winds 10 to 15 kt. Seas 3 to 4 ft. Wave Detail: S 4 ft at 7 seconds and SE 2 ft at 8 seconds. A chance of showers in the evening. .SUN THROUGH MON NIGHT...NW winds 15 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. $$
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ANZ230 Boston HarborExpires:202505160300;;552385 FZUS51 KBOX 151405 CWFBOX Coastal Waters Forecast for Massachusetts and Rhode Island National Weather Service Boston/Norton MA 1005 AM EDT Thu May 15 2025 Coastal waters from the Merrimack River MA to Watch Hill RI out to 25 NM ANZ230-160300- Boston Harbor- 1005 AM EDT Thu May 15 2025 .THIS AFTERNOON...SE winds 5 to 10 kt. Waves 1 foot or less. Isolated showers. Vsby 1 to 3 NM. .TONIGHT...S winds around 5 kt. Waves 1 foot or less. Areas of fog. Vsby 1 NM or less. .FRI...S winds around 5 kt, becoming SE in the afternoon. Waves 1 foot or less. Areas of fog in the morning with vsby 1 NM or less. .FRI NIGHT...S winds 5 to 10 kt. Waves 1 foot or less. A chance of showers after midnight. .SAT...SE winds 5 to 10 kt. Waves 1 foot or less, then around 2 ft in the afternoon. A chance of showers in the morning, then showers likely in the afternoon. .SAT NIGHT...S winds 5 to 10 kt, becoming W after midnight. Waves around 2 ft in the evening, then 1 foot or less. Showers likely, mainly in the evening. .SUN THROUGH MON NIGHT...NW winds 10 to 15 kt with gusts up to 20 kt. Waves around 2 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$
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