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ANZ230 Boston HarborExpires:202605170000;;650467 FZUS51 KBOX 161103 CWFBOX Coastal Waters Forecast for Massachusetts and Rhode Island National Weather Service Boston/Norton MA 702 AM EDT Sat May 16 2026 Coastal waters from the Merrimack River MA to Watch Hill RI out to 60 NM ANZ230-170000- Boston Harbor- 702 AM EDT Sat May 16 2026 .TODAY...SW winds 10 to 15 kt. Gusts up to 20 kt this afternoon. Waves 1 foot or less, then around 2 ft this afternoon. .TONIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Waves around 2 ft. .SUN...W winds 10 to 15 kt. Gusts up to 20 kt in the afternoon. Waves around 2 ft. .SUN NIGHT...NW winds 5 to 10 kt, becoming NE after midnight. Waves around 2 ft in the evening, then 1 foot or less. .MON...E winds 5 to 10 kt, becoming SE 10 to 15 kt with gusts up to 20 kt in the afternoon. Waves 1 foot or less, then around 2 ft in the afternoon. .MON NIGHT...S winds 10 to 15 kt. Waves around 2 ft. .TUE AND TUE NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Waves around 2 ft. .WED AND WED NIGHT...SW winds 10 to 15 kt with gusts up to 20 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. $$
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ANZ231 Cape Cod BayExpires:202605170000;;650458 FZUS51 KBOX 161103 CWFBOX Coastal Waters Forecast for Massachusetts and Rhode Island National Weather Service Boston/Norton MA 702 AM EDT Sat May 16 2026 Coastal waters from the Merrimack River MA to Watch Hill RI out to 60 NM ANZ231-170000- Cape Cod Bay- 702 AM EDT Sat May 16 2026 ...SMALL CRAFT ADVISORY IN EFFECT FROM NOON EDT TODAY THROUGH THIS EVENING... .TODAY...SW winds 5 to 10 kt, increasing to 10 to 15 kt with gusts up to 25 kt this afternoon. Seas 2 to 4 ft. Wave Detail: SW 2 ft at 3 seconds and NE 1 foot at 8 seconds. .TONIGHT...SW winds around 15 kt with gusts up to 25 kt. Seas 2 to 4 ft. Wave Detail: SW 2 ft at 3 seconds and E 1 foot at 8 seconds. .SUN...SW winds 10 to 15 kt with gusts up to 20 kt, diminishing to 5 to 10 kt in the afternoon. Seas around 2 ft. Wave Detail: SW 2 ft at 3 seconds and E 1 foot at 9 seconds. .SUN NIGHT...W winds 5 to 10 kt, becoming N after midnight. Seas around 2 ft in the evening, then 1 foot or less. Wave Detail: W 1 foot at 3 seconds and SE 1 foot at 9 seconds, becoming NW 1 foot at 3 seconds and E 1 foot at 8 seconds. .MON...E winds around 5 kt, becoming SE in the afternoon. Seas 1 foot or less, then around 2 ft in the afternoon. Wave Detail: E 1 foot at 3 seconds and NW 1 foot at 3 seconds, becoming E 1 foot at 4 seconds. .MON NIGHT...S winds 10 to 15 kt. Gusts up to 20 kt after midnight. Seas around 2 ft. Wave Detail: S 1 foot at 2 seconds and NE 1 foot at 4 seconds. .TUE THROUGH WED...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 4 ft. .WED NIGHT...SW winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 4 ft. A chance of showers. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$
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ANZ232 Nantucket SoundExpires:202605170000;;650462 FZUS51 KBOX 161103 CWFBOX Coastal Waters Forecast for Massachusetts and Rhode Island National Weather Service Boston/Norton MA 702 AM EDT Sat May 16 2026 Coastal waters from the Merrimack River MA to Watch Hill RI out to 60 NM ANZ232-170000- Nantucket Sound- 702 AM EDT Sat May 16 2026 ...SMALL CRAFT ADVISORY IN EFFECT FROM NOON EDT TODAY THROUGH THIS EVENING... .TODAY...SW winds 10 to 15 kt. Gusts up to 20 kt this afternoon. Seas 2 to 3 ft. Wave Detail: SW 3 ft at 4 seconds and E 3 ft at 7 seconds. .TONIGHT...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to 4 ft. Wave Detail: SW 3 ft at 4 seconds and SE 2 ft at 8 seconds. .SUN...SW winds 15 to 20 kt, diminishing to 10 to 15 kt in the afternoon. Seas 2 to 4 ft. Wave Detail: SW 3 ft at 4 seconds and E 1 foot at 9 seconds. .SUN NIGHT...W 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 2 ft at 4 seconds and SE 1 foot at 9 seconds. .MON...E winds 5 to 10 kt, becoming SE in the afternoon. Seas around 2 ft. Wave Detail: NE 1 foot at 5 seconds and SW 1 foot at 5 seconds. .MON NIGHT...S winds 10 to 15 kt. Seas around 2 ft. Wave Detail: SW 2 ft at 3 seconds and E 1 foot at 7 seconds. .TUE THROUGH WED...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 4 ft. .WED NIGHT...SW winds 15 to 20 kt with gusts up to 25 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. $$
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ANZ233 Vinyard SoundExpires:202605170000;;650463 FZUS51 KBOX 161103 CWFBOX Coastal Waters Forecast for Massachusetts and Rhode Island National Weather Service Boston/Norton MA 702 AM EDT Sat May 16 2026 Coastal waters from the Merrimack River MA to Watch Hill RI out to 60 NM ANZ233-170000- Vineyard Sound- 702 AM EDT Sat May 16 2026 ...SMALL CRAFT ADVISORY IN EFFECT FROM NOON EDT TODAY THROUGH THIS EVENING... .TODAY...SW winds 10 to 15 kt, increasing to 15 to 20 kt this afternoon. Seas 2 to 3 ft. Wave Detail: SW 3 ft at 4 seconds and S 2 ft at 9 seconds. .TONIGHT...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to 4 ft. Wave Detail: SW 4 ft at 6 seconds and E 2 ft at 9 seconds. .SUN...SW winds 15 to 20 kt, diminishing to 10 to 15 kt in the afternoon. Seas 2 to 4 ft. Wave Detail: SW 4 ft at 7 seconds and E 1 foot at 9 seconds. .SUN NIGHT...W winds 10 to 15 kt with gusts up to 20 kt, becoming N 5 to 10 kt after midnight. Seas 2 to 4 ft. Wave Detail: SW 3 ft at 7 seconds and SE 2 ft at 13 seconds. .MON...E winds 5 to 10 kt, becoming SE in the afternoon. Seas around 2 ft. Wave Detail: SW 2 ft at 7 seconds and E 1 foot at 5 seconds. .MON NIGHT...S winds 10 to 15 kt. Seas around 2 ft. Wave Detail: S 2 ft at 7 seconds and SE 1 foot at 8 seconds. .TUE THROUGH WED...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 4 ft. .WED NIGHT...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 4 ft. A chance of showers. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$
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ANZ234 Buzzards BayExpires:202605170000;;650464 FZUS51 KBOX 161103 CWFBOX Coastal Waters Forecast for Massachusetts and Rhode Island National Weather Service Boston/Norton MA 702 AM EDT Sat May 16 2026 Coastal waters from the Merrimack River MA to Watch Hill RI out to 60 NM ANZ234-170000- Buzzards Bay- 702 AM EDT Sat May 16 2026 ...SMALL CRAFT ADVISORY IN EFFECT FROM NOON EDT TODAY THROUGH THIS EVENING... .TODAY...SW winds 10 to 15 kt, increasing to 15 to 20 kt this afternoon. Gusts up to 25 kt. Seas 2 to 4 ft. Wave Detail: SW 3 ft at 4 seconds and S 1 foot at 10 seconds. .TONIGHT...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to 4 ft. Wave Detail: SW 3 ft at 5 seconds and SE 2 ft at 8 seconds. .SUN...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Wave Detail: SW 3 ft at 6 seconds and SE 2 ft at 10 seconds. .SUN NIGHT...W winds 10 to 15 kt with gusts up to 20 kt, becoming N around 5 kt after midnight. Seas 2 to 3 ft. Wave Detail: SW 2 ft at 6 seconds and SE 2 ft at 11 seconds. .MON...E winds 5 to 10 kt, becoming SE in the afternoon. Seas around 2 ft. Wave Detail: E 1 foot at 3 seconds and SW 1 foot at 7 seconds. .MON NIGHT...S winds 5 to 10 kt. Seas around 2 ft. Wave Detail: SE 1 foot at 7 seconds. .TUE THROUGH WED...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 4 ft. .WED NIGHT...SW winds 15 to 20 kt with gusts up to 25 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. $$
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ANZ235 Rhode Island SoundExpires:202605170000;;650465 FZUS51 KBOX 161103 CWFBOX Coastal Waters Forecast for Massachusetts and Rhode Island National Weather Service Boston/Norton MA 702 AM EDT Sat May 16 2026 Coastal waters from the Merrimack River MA to Watch Hill RI out to 60 NM ANZ235-170000- Rhode Island Sound- 702 AM EDT Sat May 16 2026 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT... .TODAY...SW winds 10 to 15 kt, increasing to 15 to 20 kt this afternoon. Seas 3 to 4 ft. Wave Detail: SW 4 ft at 4 seconds and SE 4 ft at 10 seconds. .TONIGHT...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to 5 ft. Wave Detail: SW 5 ft at 6 seconds and SE 3 ft at 9 seconds. .SUN...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 5 ft. Wave Detail: SW 5 ft at 7 seconds and SE 3 ft at 9 seconds. .SUN NIGHT...W winds 10 to 15 kt with gusts up to 20 kt, becoming N 5 to 10 kt after midnight. Seas 3 to 5 ft. Wave Detail: SW 4 ft at 7 seconds and SE 3 ft at 11 seconds. .MON...E winds 5 to 10 kt, becoming SE in the afternoon. Seas 2 to 3 ft. Wave Detail: S 3 ft at 7 seconds and SE 2 ft at 8 seconds. .MON NIGHT...S winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: S 2 ft at 7 seconds and SE 2 ft at 8 seconds. .TUE...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 4 ft. .TUE NIGHT AND WED...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to 5 ft. .WED NIGHT...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to 5 ft. A chance of showers. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$
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ANZ236 Narragansett BayExpires:202605170000;;650468 FZUS51 KBOX 161103 CWFBOX Coastal Waters Forecast for Massachusetts and Rhode Island National Weather Service Boston/Norton MA 702 AM EDT Sat May 16 2026 Coastal waters from the Merrimack River MA to Watch Hill RI out to 60 NM ANZ236-170000- Narragansett Bay- 702 AM EDT Sat May 16 2026 .TODAY...SW winds 5 to 10 kt, increasing to 10 to 15 kt with gusts up to 20 kt this afternoon. Waves 2 to 3 ft. .TONIGHT...SW winds 10 to 15 kt with gusts up to 25 kt. Waves 2 to 3 ft. .SUN...SW winds 5 to 10 kt, becoming W 10 to 15 kt in the afternoon. Waves 2 to 3 ft. .SUN NIGHT...W winds 5 to 10 kt, becoming N after midnight. Waves 2 to 3 ft. .MON...E winds 5 to 10 kt, becoming S in the afternoon. Waves around 2 ft. .MON NIGHT...S winds 5 to 10 kt. Waves around 2 ft. .TUE THROUGH WED...SW winds 10 to 15 kt with gusts up to 25 kt. Waves 2 to 3 ft. .WED NIGHT...SW winds 10 to 15 kt with gusts up to 20 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. $$
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ANZ237 Block Island SoundExpires:202605170000;;650466 FZUS51 KBOX 161103 CWFBOX Coastal Waters Forecast for Massachusetts and Rhode Island National Weather Service Boston/Norton MA 702 AM EDT Sat May 16 2026 Coastal waters from the Merrimack River MA to Watch Hill RI out to 60 NM ANZ237-170000- Block Island Sound- 702 AM EDT Sat May 16 2026 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT... .TODAY...SW winds 5 to 10 kt, increasing to 10 to 15 kt with gusts up to 20 kt this afternoon. Seas 3 to 4 ft. Wave Detail: SE 4 ft at 10 seconds and SW 3 ft at 8 seconds. .TONIGHT...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to 5 ft. Wave Detail: SW 4 ft at 5 seconds and SE 3 ft at 9 seconds. .SUN...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 4 ft. Wave Detail: SW 4 ft at 7 seconds and SE 2 ft at 9 seconds. .SUN NIGHT...W winds 10 to 15 kt, becoming N 5 to 10 kt after midnight. Seas 2 to 4 ft. Wave Detail: SW 3 ft at 7 seconds and SE 2 ft at 8 seconds. .MON...E winds 5 to 10 kt, becoming SE in the afternoon. Seas 2 to 3 ft. Wave Detail: S 3 ft at 7 seconds and SE 2 ft at 8 seconds. .MON NIGHT...S winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: S 2 ft at 7 seconds and SE 2 ft at 8 seconds. .TUE THROUGH WED...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 4 ft. .WED NIGHT...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to 4 ft. A chance of showers. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$
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ANZ250 Coastal waters east of Ipswich Bay and the Stellwagen Bank National Marine SanctuaryExpires:202605170000;;650456 FZUS51 KBOX 161103 CWFBOX Coastal Waters Forecast for Massachusetts and Rhode Island National Weather Service Boston/Norton MA 702 AM EDT Sat May 16 2026 Coastal waters from the Merrimack River MA to Watch Hill RI out to 60 NM ANZ250-170000- Coastal waters east of Ipswich Bay and the Stellwagen Bank National Marine Sanctuary- 702 AM EDT Sat May 16 2026 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT... .TODAY...SW winds around 10 kt, becoming S 15 to 20 kt with gusts up to 25 kt this afternoon. Seas 4 to 5 ft. Wave Detail: E 5 ft at 10 seconds and SW 3 ft at 4 seconds. .TONIGHT...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to 5 ft. Wave Detail: S 4 ft at 5 seconds and E 4 ft at 9 seconds. .SUN...SW winds 10 to 15 kt. Gusts up to 20 kt in the morning. Seas 2 to 4 ft. Wave Detail: SW 4 ft at 5 seconds and SE 3 ft at 9 seconds. .SUN NIGHT...NW winds 5 to 10 kt, becoming NE after midnight. Seas 2 to 3 ft. Wave Detail: SE 2 ft at 8 seconds and W 1 foot at 3 seconds. .MON...E winds around 5 kt, becoming SE 10 to 15 kt with gusts up to 20 kt in the afternoon. Seas 2 to 3 ft. Wave Detail: S 2 ft at 3 seconds and SE 2 ft at 8 seconds. .MON NIGHT...S winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Wave Detail: S 3 ft at 4 seconds and SE 2 ft at 8 seconds. .TUE AND TUE NIGHT...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 4 ft. .WED AND WED NIGHT...SW winds 15 to 20 kt, diminishing to 10 to 15 kt. Gusts up to 25 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. $$
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ANZ251 Massachusetts Bay and Ipswich BayExpires:202605170000;;650457 FZUS51 KBOX 161103 CWFBOX Coastal Waters Forecast for Massachusetts and Rhode Island National Weather Service Boston/Norton MA 702 AM EDT Sat May 16 2026 Coastal waters from the Merrimack River MA to Watch Hill RI out to 60 NM ANZ251-170000- Massachusetts Bay and Ipswich Bay- 702 AM EDT Sat May 16 2026 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT... .TODAY...SW winds 10 to 15 kt. Gusts up to 20 kt this afternoon. Seas 2 to 4 ft. Wave Detail: E 4 ft at 10 seconds and NW 3 ft at 5 seconds. .TONIGHT...S winds 15 to 20 kt, becoming SW 10 to 15 kt after midnight. Seas 2 to 4 ft. Wave Detail: S 3 ft at 4 seconds and E 3 ft at 10 seconds. .SUN...W winds 10 to 15 kt, diminishing to 5 to 10 kt in the afternoon. Seas 2 to 3 ft. Wave Detail: SW 2 ft at 4 seconds and E 2 ft at 9 seconds. .SUN NIGHT...NW winds 5 to 10 kt, becoming N after midnight. Seas around 2 ft. Wave Detail: W 1 foot at 3 seconds and E 1 foot at 8 seconds. .MON...E winds around 5 kt, becoming SE 10 to 15 kt with gusts up to 20 kt in the afternoon. Seas around 2 ft. Wave Detail: SE 2 ft at 3 seconds and E 1 foot at 7 seconds. .MON NIGHT...S winds 10 to 15 kt. Gusts up to 20 kt in the evening. Seas around 2 ft. Wave Detail: SE 2 ft at 4 seconds and E 1 foot at 8 seconds. .TUE AND TUE NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. .WED AND WED NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. A chance of showers. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$
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ANZ254 Coastal waters from Provincetown MA to Chatham MA to Nantucket MA out 20 NMExpires:202605170000;;650459 FZUS51 KBOX 161103 CWFBOX Coastal Waters Forecast for Massachusetts and Rhode Island National Weather Service Boston/Norton MA 702 AM EDT Sat May 16 2026 Coastal waters from the Merrimack River MA to Watch Hill RI out to 60 NM ANZ254-170000- Coastal waters from Provincetown MA to Chatham MA to Nantucket MA out 20 NM- 702 AM EDT Sat May 16 2026 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT... .TODAY...SW winds 10 to 15 kt. Gusts up to 25 kt this afternoon. Seas 4 to 5 ft. Wave Detail: E 5 ft at 10 seconds and SW 3 ft at 4 seconds. Patchy fog this morning with vsby 1 NM or less. .TONIGHT...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 4 to 6 ft. Wave Detail: SW 5 ft at 6 seconds and E 4 ft at 9 seconds. .SUN...SW winds 15 to 20 kt, diminishing to 10 to 15 kt in the afternoon. Gusts up to 25 kt. Seas 4 to 6 ft. Wave Detail: SW 5 ft at 6 seconds and SE 3 ft at 9 seconds. .SUN NIGHT...W winds 10 to 15 kt, becoming N 5 to 10 kt after midnight. Seas 2 to 4 ft. Wave Detail: W 3 ft at 5 seconds and SE 3 ft at 8 seconds. .MON...E winds 5 to 10 kt, becoming SE in the afternoon. Seas 2 to 3 ft. Wave Detail: W 2 ft at 5 seconds and E 2 ft at 8 seconds. .MON NIGHT...S winds 10 to 15 kt. Gusts up to 20 kt after midnight. Seas 2 to 3 ft. Wave Detail: S 2 ft at 4 seconds and SE 2 ft at 7 seconds. .TUE...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 4 ft. .TUE NIGHT AND WED...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to 5 ft. .WED NIGHT...SW winds 15 to 20 kt with gusts up to 25 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. $$
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ANZ255 Coastal waters extending out to 25 NM south of Martha’s Vineyard and NantucketExpires:202605170000;;650460 FZUS51 KBOX 161103 CWFBOX Coastal Waters Forecast for Massachusetts and Rhode Island National Weather Service Boston/Norton MA 702 AM EDT Sat May 16 2026 Coastal waters from the Merrimack River MA to Watch Hill RI out to 60 NM ANZ255-170000- Coastal Waters extending out to 25 NM South of Marthas Vineyard and Nantucket- 702 AM EDT Sat May 16 2026 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT... .TODAY...SW winds 5 to 10 kt, increasing to 10 to 15 kt with gusts up to 20 kt this afternoon. Seas 3 to 5 ft. Wave Detail: SE 5 ft at 10 seconds and SW 3 ft at 5 seconds. .TONIGHT...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 4 to 6 ft. Wave Detail: SW 6 ft at 6 seconds and SE 4 ft at 9 seconds. .SUN...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 4 to 6 ft. Wave Detail: SW 6 ft at 7 seconds and SE 3 ft at 9 seconds. .SUN NIGHT...W winds 10 to 15 kt with gusts up to 20 kt, becoming N after midnight. Seas 3 to 5 ft. Wave Detail: SW 4 ft at 7 seconds and SE 2 ft at 8 seconds. .MON...E winds around 10 kt, becoming SE in the afternoon. Seas 2 to 4 ft. Wave Detail: SW 3 ft at 7 seconds and SE 2 ft at 9 seconds. .MON NIGHT...S winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: S 3 ft at 7 seconds. .TUE...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to 5 ft. .TUE NIGHT AND WED...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 4 to 6 ft. .WED NIGHT...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 4 to 6 ft. A chance of showers. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$
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ANZ256 Coastal waters from Montauk NY to Martha’s Vineyard extending out to 20 NM south of Block IslandExpires:202605170000;;650461 FZUS51 KBOX 161103 CWFBOX Coastal Waters Forecast for Massachusetts and Rhode Island National Weather Service Boston/Norton MA 702 AM EDT Sat May 16 2026 Coastal waters from the Merrimack River MA to Watch Hill RI out to 60 NM ANZ256-170000- Coastal Waters from Montauk NY to Marthas Vineyard extending out to 20 NM South of Block Island- 702 AM EDT Sat May 16 2026 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT... .TODAY...SW winds 5 to 10 kt, increasing to 10 to 15 kt with gusts up to 20 kt this afternoon. Seas 4 to 5 ft. Wave Detail: SE 5 ft at 10 seconds and SW 3 ft at 6 seconds. .TONIGHT...SW winds 15 to 20 kt, increasing to 20 to 25 kt after midnight. Gusts up to 30 kt. Seas 4 to 6 ft. Wave Detail: SW 6 ft at 6 seconds and SE 4 ft at 9 seconds. .SUN...SW winds 15 to 20 kt, diminishing to 10 to 15 kt in the afternoon. Gusts up to 25 kt. Seas 5 to 6 ft. Wave Detail: SW 6 ft at 7 seconds and SE 2 ft at 9 seconds. .SUN NIGHT...W winds 10 to 15 kt with gusts up to 20 kt, becoming N 5 to 10 kt after midnight. Seas 3 to 5 ft. Wave Detail: SW 4 ft at 7 seconds and SE 2 ft at 8 seconds. .MON...E winds around 10 kt, becoming SE in the afternoon. Seas 3 to 4 ft. Wave Detail: S 3 ft at 7 seconds and SE 2 ft at 8 seconds. .MON NIGHT...S winds 10 to 15 kt. Seas around 3 ft. Wave Detail: S 3 ft at 7 seconds and SE 2 ft at 8 seconds. .TUE...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to 5 ft. .TUE NIGHT AND WED...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 4 to 6 ft. .WED NIGHT...SW winds 15 to 20 kt with gusts up to 25 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. $$
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ANZ230 Boston HarborExpires:202605170000;;650467 FZUS51 KBOX 161103 CWFBOX Coastal Waters Forecast for Massachusetts and Rhode Island National Weather Service Boston/Norton MA 702 AM EDT Sat May 16 2026 Coastal waters from the Merrimack River MA to Watch Hill RI out to 60 NM ANZ230-170000- Boston Harbor- 702 AM EDT Sat May 16 2026 .TODAY...SW winds 10 to 15 kt. Gusts up to 20 kt this afternoon. Waves 1 foot or less, then around 2 ft this afternoon. .TONIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Waves around 2 ft. .SUN...W winds 10 to 15 kt. Gusts up to 20 kt in the afternoon. Waves around 2 ft. .SUN NIGHT...NW winds 5 to 10 kt, becoming NE after midnight. Waves around 2 ft in the evening, then 1 foot or less. .MON...E winds 5 to 10 kt, becoming SE 10 to 15 kt with gusts up to 20 kt in the afternoon. Waves 1 foot or less, then around 2 ft in the afternoon. .MON NIGHT...S winds 10 to 15 kt. Waves around 2 ft. .TUE AND TUE NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Waves around 2 ft. .WED AND WED NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Waves around 2 ft. A chance of showers. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$
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