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ANZ230 Boston HarborExpires:202609090600;;118492 FZUS51 KBOX 081704 CWFBOX Coastal Waters Forecast for Massachusetts and Rhode Island National Weather Service Boston/Norton MA 103 PM EDT Tue Sep 8 2026 Coastal waters from the Merrimack River MA to Watch Hill RI out to 60 NM ANZ230-090600- Boston Harbor- 103 PM EDT Tue Sep 8 2026 .THIS AFTERNOON...E winds 5 to 10 kt. Waves 1 foot or less. .TONIGHT...SE winds 5 to 10 kt, diminishing to around 5 kt after midnight. Waves 1 foot or less. .WED...SE winds 5 to 10 kt, becoming S 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. .WED NIGHT...SW winds 15 to 20 kt with gusts up to 25 kt. Waves around 2 ft. A chance of showers after midnight. .THU...W winds 10 to 15 kt with gusts up to 25 kt. Waves around 2 ft. A chance of showers in the morning. .THU NIGHT...W winds 5 to 10 kt. Gusts up to 20 kt in the evening. Waves around 2 ft in the evening, then 1 foot or less. .FRI THROUGH SAT NIGHT...S winds 5 to 10 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. $$
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ANZ231 Cape Cod BayExpires:202609090600;;118483 FZUS51 KBOX 081704 CWFBOX Coastal Waters Forecast for Massachusetts and Rhode Island National Weather Service Boston/Norton MA 103 PM EDT Tue Sep 8 2026 Coastal waters from the Merrimack River MA to Watch Hill RI out to 60 NM ANZ231-090600- Cape Cod Bay- 103 PM EDT Tue Sep 8 2026 ...GALE WATCH IN EFFECT FROM WEDNESDAY EVENING THROUGH THURSDAY MORNING... .THIS AFTERNOON...NE winds around 5 kt. Seas 1 foot or less. Wave Detail: N 1 foot at 4 seconds and E 1 foot at 9 seconds. .TONIGHT...SE winds around 5 kt. Seas 1 foot or less. Wave Detail: N 1 foot at 3 seconds and E 1 foot at 9 seconds. .WED...SE winds 5 to 10 kt, becoming S 10 to 15 kt in the afternoon. Gusts up to 25 kt. Seas 1 foot or less, then 2 to 3 ft in the afternoon. Wave Detail: SE 1 foot at 3 seconds and E 1 foot at 10 seconds, becoming E 1 foot at 3 seconds and S 1 foot at 3 seconds. .WED NIGHT...SW winds 15 to 20 kt. Gusts up to 25 kt, increasing to 35 kt after midnight. Seas 3 to 4 ft, building to 4 to 6 ft after midnight. Wave Detail: S 2 ft at 3 seconds and E 1 foot at 4 seconds, becoming SW 3 ft at 4 seconds and E 1 foot at 4 seconds. .THU...SW winds 15 to 20 kt with gusts up to 35 kt, diminishing to 10 to 15 kt with gusts up to 25 kt in the afternoon. Seas 3 to 5 ft. Wave Detail: SW 3 ft at 4 seconds and E 1 foot at 5 seconds. A chance of showers. .THU NIGHT...SW winds 10 to 15 kt with gusts up to 25 kt, becoming NW 5 to 10 kt after midnight. Seas 2 to 3 ft. Wave Detail: W 2 ft at 3 seconds and SE 1 foot at 5 seconds. .FRI THROUGH SAT NIGHT...S winds 5 to 10 kt with gusts up to 20 kt. Seas around 2 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$
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ANZ232 Nantucket SoundExpires:202609090600;;118487 FZUS51 KBOX 081704 CWFBOX Coastal Waters Forecast for Massachusetts and Rhode Island National Weather Service Boston/Norton MA 103 PM EDT Tue Sep 8 2026 Coastal waters from the Merrimack River MA to Watch Hill RI out to 60 NM ANZ232-090600- Nantucket Sound- 103 PM EDT Tue Sep 8 2026 ...GALE WATCH IN EFFECT FROM WEDNESDAY EVENING THROUGH THURSDAY MORNING... .THIS AFTERNOON...N winds around 5 kt. Seas around 2 ft. Wave Detail: W 1 foot at 3 seconds and NE 1 foot at 5 seconds. .TONIGHT...SE winds 5 to 10 kt. Seas 1 foot or less. Wave Detail: NE 1 foot at 4 seconds and SW 1 foot at 4 seconds. .WED...S winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 3 ft. Wave Detail: SE 2 ft at 3 seconds and E 1 foot at 10 seconds. .WED NIGHT...SW winds 15 to 20 kt with gusts up to 25 kt, increasing to 20 to 25 kt with gusts up to 35 kt after midnight. Seas 3 to 4 ft. Wave Detail: SW 4 ft at 5 seconds and E 1 foot at 4 seconds. .THU...SW winds 15 to 20 kt with gusts up to 35 kt. Seas 3 to 5 ft. Wave Detail: SW 4 ft at 5 seconds and E 1 foot at 5 seconds. A chance of showers. .THU NIGHT...W winds 10 to 15 kt. Gusts up to 30 kt in the evening. Seas 2 to 4 ft. Wave Detail: W 3 ft at 4 seconds and S 1 foot at 8 seconds. A chance of showers. .FRI THROUGH SAT NIGHT...S 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. $$
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ANZ233 Vinyard SoundExpires:202609090600;;118488 FZUS51 KBOX 081704 CWFBOX Coastal Waters Forecast for Massachusetts and Rhode Island National Weather Service Boston/Norton MA 103 PM EDT Tue Sep 8 2026 Coastal waters from the Merrimack River MA to Watch Hill RI out to 60 NM ANZ233-090600- Vineyard Sound- 103 PM EDT Tue Sep 8 2026 ...GALE WATCH IN EFFECT FROM WEDNESDAY EVENING THROUGH THURSDAY MORNING... .THIS AFTERNOON...SW winds 5 to 10 kt. Seas 1 foot or less. Wave Detail: SW 1 foot at 4 seconds and N 1 foot at 4 seconds. .TONIGHT...SE winds 5 to 10 kt. Seas 1 foot or less. Wave Detail: NE 1 foot at 4 seconds and SW 1 foot at 4 seconds. .WED...S winds 5 to 10 kt, increasing to 10 to 15 kt with gusts up to 25 kt in the afternoon. Seas 1 foot or less, then 2 to 3 ft in the afternoon. Wave Detail: E 1 foot at 3 seconds and SW 1 foot at 4 seconds, becoming SW 2 ft at 4 seconds and E 1 foot at 2 seconds. .WED NIGHT...SW winds 15 to 20 kt with gusts up to 25 kt, increasing to 20 to 25 kt with gusts up to 35 kt after midnight. Seas 3 to 4 ft, building to 4 to 6 ft after midnight. Wave Detail: SW 4 ft at 5 seconds and E 1 foot at 4 seconds, becoming SW 6 ft at 6 seconds and SE 1 foot at 4 seconds. .THU...SW winds 20 to 25 kt, diminishing to 15 to 20 kt in the afternoon. Gusts up to 35 kt. Seas 4 to 6 ft. Wave Detail: SW 6 ft at 8 seconds and SE 4 ft at 6 seconds. A chance of showers. .THU NIGHT...W winds 15 to 20 kt with gusts up to 25 kt, becoming NW around 10 kt after midnight. Seas 3 to 5 ft, subsiding to 2 to 3 ft after midnight. Wave Detail: SW 5 ft at 8 seconds and SE 2 ft at 14 seconds, becoming SW 3 ft at 7 seconds and SE 1 foot at 13 seconds. A chance of showers. .FRI THROUGH SAT NIGHT...S winds 10 to 15 kt. Seas 2 to 3 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$
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ANZ234 Buzzards BayExpires:202609090600;;118489 FZUS51 KBOX 081704 CWFBOX Coastal Waters Forecast for Massachusetts and Rhode Island National Weather Service Boston/Norton MA 103 PM EDT Tue Sep 8 2026 Coastal waters from the Merrimack River MA to Watch Hill RI out to 60 NM ANZ234-090600- Buzzards Bay- 103 PM EDT Tue Sep 8 2026 ...GALE WATCH IN EFFECT FROM WEDNESDAY EVENING THROUGH THURSDAY MORNING... .THIS AFTERNOON...SW winds around 5 kt. Seas 1 foot or less. Wave Detail: SW 1 foot at 4 seconds and N 1 foot at 4 seconds. .TONIGHT...SE winds 5 to 10 kt. Seas 1 foot or less. Wave Detail: NE 1 foot at 4 seconds and SW 1 foot at 4 seconds. .WED...S winds 5 to 10 kt, increasing to 10 to 15 kt with gusts up to 25 kt in the afternoon. Seas 1 foot or less, then 2 to 3 ft in the afternoon. Wave Detail: SE 1 foot at 4 seconds and SE 1 foot at 9 seconds, becoming SW 2 ft at 3 seconds and E 1 foot at 2 seconds. .WED NIGHT...SW winds 15 to 20 kt with gusts up to 25 kt, increasing to 20 to 25 kt with gusts up to 35 kt after midnight. Seas 3 to 4 ft, building to 4 to 6 ft after midnight. Wave Detail: SW 3 ft at 4 seconds and E 1 foot at 4 seconds, becoming SW 5 ft at 6 seconds and SE 2 ft at 10 seconds. .THU...SW winds 15 to 20 kt with gusts up to 35 kt. Seas 4 to 6 ft. Wave Detail: SW 5 ft at 7 seconds and SE 4 ft at 8 seconds. A chance of showers. .THU NIGHT...W winds 10 to 15 kt with gusts up to 30 kt, becoming NW after midnight. Seas 2 to 4 ft. Wave Detail: SW 4 ft at 8 seconds and SE 4 ft at 13 seconds. A chance of showers. .FRI THROUGH SAT NIGHT...S 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. $$
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ANZ235 Rhode Island SoundExpires:202609090600;;118490 FZUS51 KBOX 081704 CWFBOX Coastal Waters Forecast for Massachusetts and Rhode Island National Weather Service Boston/Norton MA 103 PM EDT Tue Sep 8 2026 Coastal waters from the Merrimack River MA to Watch Hill RI out to 60 NM ANZ235-090600- Rhode Island Sound- 103 PM EDT Tue Sep 8 2026 .THIS AFTERNOON...SW winds 5 to 10 kt. Seas around 2 ft. Wave Detail: SW 1 foot at 4 seconds and N 1 foot at 4 seconds. .TONIGHT...SW winds 5 to 10 kt, becoming SE after midnight. Seas around 2 ft. Wave Detail: NE 1 foot at 4 seconds and SW 1 foot at 4 seconds. .WED...S winds 5 to 10 kt, increasing to 10 to 15 kt with gusts up to 25 kt in the afternoon. Seas 1 foot or less, then 2 to 3 ft in the afternoon. Wave Detail: NE 1 foot at 3 seconds and SW 1 foot at 4 seconds, becoming S 2 ft at 4 seconds and NE 1 foot at 3 seconds. .WED NIGHT...SW winds 20 to 25 kt with gusts up to 35 kt. Seas 3 to 4 ft, building to 4 to 6 ft after midnight. Wave Detail: SW 4 ft at 5 seconds and E 1 foot at 4 seconds, becoming SW 6 ft at 7 seconds and SE 4 ft at 10 seconds. .THU...SW winds 20 to 25 kt, diminishing to 15 to 20 kt in the afternoon. Gusts up to 35 kt. Seas 5 to 7 ft. Wave Detail: SW 7 ft at 8 seconds and E 1 foot at 5 seconds. A chance of showers. .THU NIGHT...W winds 15 to 20 kt with gusts up to 25 kt, becoming NW around 10 kt after midnight. Seas 4 to 6 ft, subsiding to 3 to 4 ft after midnight. Wave Detail: SW 6 ft at 8 seconds and S 5 ft at 10 seconds, becoming SW 4 ft at 7 seconds and SE 2 ft at 10 seconds. A chance of showers. .FRI THROUGH SAT NIGHT...S winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$
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ANZ236 Narragansett BayExpires:202609090600;;118493 FZUS51 KBOX 081704 CWFBOX Coastal Waters Forecast for Massachusetts and Rhode Island National Weather Service Boston/Norton MA 103 PM EDT Tue Sep 8 2026 Coastal waters from the Merrimack River MA to Watch Hill RI out to 60 NM ANZ236-090600- Narragansett Bay- 103 PM EDT Tue Sep 8 2026 .THIS AFTERNOON...SW winds around 5 kt. Waves 1 foot or less. .TONIGHT...SE winds around 5 kt. Waves 1 foot or less. .WED...S winds 5 to 10 kt, increasing to 10 to 15 kt with gusts up to 25 kt in the afternoon. Waves 1 foot or less, then 2 to 3 ft in the afternoon. .WED NIGHT...SW winds 15 to 20 kt with gusts up to 30 kt. Waves 3 to 4 ft. .THU...SW winds 15 to 20 kt, diminishing to 10 to 15 kt in the afternoon. Gusts up to 30 kt. Waves 2 to 4 ft. A chance of showers. .THU NIGHT...W winds 5 to 10 kt with gusts up to 25 kt, becoming NW after midnight. Waves 2 to 3 ft. .FRI THROUGH SAT NIGHT...S winds 5 to 10 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. $$
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ANZ237 Block Island SoundExpires:202609090600;;118491 FZUS51 KBOX 081704 CWFBOX Coastal Waters Forecast for Massachusetts and Rhode Island National Weather Service Boston/Norton MA 103 PM EDT Tue Sep 8 2026 Coastal waters from the Merrimack River MA to Watch Hill RI out to 60 NM ANZ237-090600- Block Island Sound- 103 PM EDT Tue Sep 8 2026 .THIS AFTERNOON...W winds 5 to 10 kt. Seas 1 foot or less. Wave Detail: N 1 foot at 3 seconds and SW 1 foot at 3 seconds. .TONIGHT...SW winds 5 to 10 kt, becoming S after midnight. Seas around 2 ft in the evening, then 1 foot or less. Wave Detail: SW 1 foot at 3 seconds and SE 1 foot at 9 seconds, becoming SW 1 foot at 3 seconds and N 1 foot at 4 seconds. .WED...S winds 5 to 10 kt, increasing to 10 to 15 kt with gusts up to 25 kt in the afternoon. Seas 1 foot or less, then 2 to 3 ft in the afternoon. Wave Detail: NE 1 foot at 3 seconds and S 1 foot at 3 seconds, becoming S 2 ft at 3 seconds and NE 1 foot at 3 seconds. .WED NIGHT...SW winds 20 to 25 kt with gusts up to 30 kt. Seas 3 to 4 ft, building to 4 to 6 ft after midnight. Wave Detail: SW 4 ft at 5 seconds and E 1 foot at 4 seconds, becoming SW 5 ft at 6 seconds and SE 1 foot at 4 seconds. .THU...SW winds 15 to 20 kt with gusts up to 30 kt. Seas 4 to 6 ft. Wave Detail: SW 5 ft at 7 seconds and SE 4 ft at 10 seconds. A chance of showers. .THU NIGHT...W winds 10 to 15 kt with gusts up to 25 kt, becoming NW 5 to 10 kt after midnight. Seas 3 to 5 ft. Wave Detail: S 4 ft at 8 seconds and SW 3 ft at 7 seconds. A chance of showers. .FRI THROUGH SAT NIGHT...S winds 5 to 10 kt. Seas 2 to 3 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$
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ANZ250 Coastal waters east of Ipswich Bay and the Stellwagen Bank National Marine SanctuaryExpires:202609090600;;118481 FZUS51 KBOX 081704 CWFBOX Coastal Waters Forecast for Massachusetts and Rhode Island National Weather Service Boston/Norton MA 103 PM EDT Tue Sep 8 2026 Coastal waters from the Merrimack River MA to Watch Hill RI out to 60 NM ANZ250-090600- Coastal waters east of Ipswich Bay and the Stellwagen Bank National Marine Sanctuary- 103 PM EDT Tue Sep 8 2026 .THIS AFTERNOON...NE winds around 5 kt. Seas around 2 ft. Wave Detail: N 2 ft at 3 seconds and E 1 foot at 9 seconds. .TONIGHT...SE winds around 5 kt. Seas around 2 ft. Wave Detail: W 1 foot at 3 seconds and N 1 foot at 3 seconds. .WED...SE winds 10 to 15 kt, becoming S 15 to 20 kt in the afternoon. Gusts up to 25 kt. Seas 2 to 3 ft. Wave Detail: SE 3 ft at 4 seconds and E 1 foot at 9 seconds. .WED NIGHT...S winds 15 to 20 kt with gusts up to 25 kt, becoming SW 20 to 25 kt with gusts up to 35 kt after midnight. Seas 3 to 5 ft. Wave Detail: SE 5 ft at 5 seconds and E 1 foot at 9 seconds. A chance of showers after midnight. .THU...SW winds 20 to 25 kt, diminishing to 10 to 15 kt in the afternoon. Gusts up to 30 kt. Seas 3 to 5 ft. Wave Detail: SW 5 ft at 5 seconds and SE 2 ft at 9 seconds. A chance of showers in the morning. .THU NIGHT...W winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 3 ft. Wave Detail: W 2 ft at 4 seconds and SE 2 ft at 9 seconds. .FRI THROUGH SAT NIGHT...S 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. $$
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ANZ251 Massachusetts Bay and Ipswich BayExpires:202609090600;;118482 FZUS51 KBOX 081704 CWFBOX Coastal Waters Forecast for Massachusetts and Rhode Island National Weather Service Boston/Norton MA 103 PM EDT Tue Sep 8 2026 Coastal waters from the Merrimack River MA to Watch Hill RI out to 60 NM ANZ251-090600- Massachusetts Bay and Ipswich Bay- 103 PM EDT Tue Sep 8 2026 .THIS AFTERNOON...E winds 5 to 10 kt. Seas around 2 ft. Wave Detail: W 1 foot at 2 seconds and NE 1 foot at 3 seconds. .TONIGHT...SE winds 5 to 10 kt. Seas 1 foot or less. Wave Detail: NE 1 foot at 2 seconds and SW 1 foot at 2 seconds. .WED...SE winds 5 to 10 kt, becoming S 10 to 15 kt with gusts up to 25 kt in the afternoon. Seas 1 foot or less, then 2 to 3 ft in the afternoon. Wave Detail: SE 1 foot at 3 seconds and E 1 foot at 9 seconds, becoming SE 2 ft at 4 seconds and E 1 foot at 9 seconds. .WED NIGHT...SW winds 15 to 20 kt with gusts up to 30 kt. Seas around 3 ft. Wave Detail: SE 3 ft at 5 seconds and E 1 foot at 9 seconds. A chance of showers after midnight. .THU...SW winds 10 to 15 kt. Gusts up to 30 kt, decreasing to 20 kt in the afternoon. Seas 2 to 3 ft. Wave Detail: SW 3 ft at 4 seconds and SE 1 foot at 5 seconds. A chance of showers in the morning. .THU NIGHT...W winds 10 to 15 kt. Gusts up to 20 kt in the evening. Seas 2 to 3 ft. Wave Detail: W 2 ft at 3 seconds and SE 1 foot at 5 seconds. .FRI THROUGH SAT NIGHT...S winds 5 to 10 kt with gusts up to 20 kt. Seas around 2 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$
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ANZ254 Coastal waters from Provincetown MA to Chatham MA to Nantucket MA out 20 NMExpires:202609090600;;118484 FZUS51 KBOX 081704 CWFBOX Coastal Waters Forecast for Massachusetts and Rhode Island National Weather Service Boston/Norton MA 103 PM EDT Tue Sep 8 2026 Coastal waters from the Merrimack River MA to Watch Hill RI out to 60 NM ANZ254-090600- Coastal waters from Provincetown MA to Chatham MA to Nantucket MA out 20 NM- 103 PM EDT Tue Sep 8 2026 .THIS AFTERNOON...N winds 5 to 10 kt. Seas around 2 ft. Wave Detail: N 2 ft at 4 seconds and E 2 ft at 10 seconds. .TONIGHT...E winds around 5 kt, becoming SE after midnight. Seas around 2 ft. Wave Detail: NW 1 foot at 4 seconds and E 1 foot at 9 seconds. .WED...S winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 3 ft. Wave Detail: S 2 ft at 3 seconds and NE 1 foot at 3 seconds. .WED NIGHT...S winds 15 to 20 kt, becoming SW 20 to 25 kt after midnight. Gusts up to 30 kt. Seas 3 to 5 ft. Wave Detail: SW 5 ft at 5 seconds and NE 1 foot at 4 seconds. .THU...SW winds 20 to 25 kt, diminishing to 15 to 20 kt in the afternoon. Gusts up to 30 kt. Seas 4 to 6 ft. Wave Detail: SW 5 ft at 6 seconds and SE 2 ft at 9 seconds. A chance of showers in the morning. .THU NIGHT...SW winds 15 to 20 kt, becoming NW around 10 kt after midnight. Gusts up to 25 kt. Seas 4 to 6 ft, subsiding to 2 to 4 ft after midnight. Wave Detail: SW 4 ft at 6 seconds and SE 2 ft at 9 seconds, becoming W 3 ft at 6 seconds and SE 2 ft at 9 seconds. A chance of showers. .FRI AND FRI NIGHT...N winds 10 to 15 kt with gusts up to 20 kt, becoming W around 5 kt. Seas 2 to 4 ft. .SAT AND SAT NIGHT...SE winds 5 to 10 kt, becoming S. 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. $$
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ANZ255 Coastal waters extending out to 25 NM south of Martha’s Vineyard and NantucketExpires:202609090600;;118485 FZUS51 KBOX 081704 CWFBOX Coastal Waters Forecast for Massachusetts and Rhode Island National Weather Service Boston/Norton MA 103 PM EDT Tue Sep 8 2026 Coastal waters from the Merrimack River MA to Watch Hill RI out to 60 NM ANZ255-090600- Coastal Waters extending out to 25 NM South of Marthas Vineyard and Nantucket- 103 PM EDT Tue Sep 8 2026 .THIS AFTERNOON...W winds 5 to 10 kt. Seas around 2 ft. Wave Detail: W 2 ft at 4 seconds and NE 1 foot at 5 seconds. .TONIGHT...SE winds 5 to 10 kt. Seas around 2 ft. Wave Detail: W 2 ft at 4 seconds and NE 1 foot at 4 seconds. .WED...S winds 10 to 15 kt. Gusts up to 20 kt in the afternoon. Seas 2 to 3 ft. Wave Detail: S 2 ft at 4 seconds and E 1 foot at 3 seconds. .WED NIGHT...SW winds 15 to 20 kt with gusts up to 25 kt, increasing to 20 to 25 kt with gusts up to 35 kt after midnight. Seas 3 to 4 ft, building to 4 to 6 ft after midnight. Wave Detail: SW 4 ft at 5 seconds and NE 1 foot at 4 seconds, becoming SW 6 ft at 7 seconds and E 1 foot at 4 seconds. .THU...SW winds 20 to 25 kt with gusts up to 35 kt. Seas 5 to 8 ft. Wave Detail: SW 7 ft at 8 seconds and SE 6 ft at 9 seconds. A chance of showers. .THU NIGHT...SW winds 15 to 20 kt with gusts up to 30 kt, becoming W 10 to 15 kt with gusts up to 20 kt after midnight. Seas 5 to 7 ft, subsiding to 3 to 5 ft after midnight. Wave Detail: SW 7 ft at 8 seconds and SE 2 ft at 9 seconds, becoming SW 5 ft at 7 seconds and SE 1 foot at 10 seconds. A chance of showers. .FRI AND FRI NIGHT...N winds 10 to 15 kt with gusts up to 20 kt, becoming SE around 5 kt. Seas 2 to 4 ft. .SAT AND SAT NIGHT...SE winds 5 to 10 kt. Seas around 2 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$
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ANZ256 Coastal waters from Montauk NY to Martha’s Vineyard extending out to 20 NM south of Block IslandExpires:202609090600;;118486 FZUS51 KBOX 081704 CWFBOX Coastal Waters Forecast for Massachusetts and Rhode Island National Weather Service Boston/Norton MA 103 PM EDT Tue Sep 8 2026 Coastal waters from the Merrimack River MA to Watch Hill RI out to 60 NM ANZ256-090600- Coastal Waters from Montauk NY to Marthas Vineyard extending out to 20 NM South of Block Island- 103 PM EDT Tue Sep 8 2026 .THIS AFTERNOON...W winds 5 to 10 kt. Seas around 2 ft. Wave Detail: W 2 ft at 4 seconds and N 1 foot at 4 seconds. .TONIGHT...SW winds 5 to 10 kt. Seas around 2 ft. Wave Detail: SW 2 ft at 4 seconds and NE 1 foot at 5 seconds. .WED...S winds 5 to 10 kt, increasing to 10 to 15 kt with gusts up to 25 kt in the afternoon. Seas 2 to 3 ft. Wave Detail: SW 3 ft at 4 seconds and E 1 foot at 2 seconds. .WED NIGHT...SW winds 20 to 25 kt with gusts up to 35 kt. Seas 3 to 5 ft, building to 5 to 7 ft after midnight. Wave Detail: SW 5 ft at 5 seconds and E 1 foot at 4 seconds, becoming SW 7 ft at 7 seconds and E 1 foot at 4 seconds. .THU...SW winds 20 to 25 kt with gusts up to 35 kt. Seas 6 to 8 ft. Wave Detail: SW 8 ft at 8 seconds and SE 8 ft at 9 seconds. A chance of showers. .THU NIGHT...SW winds 15 to 20 kt, becoming NW 10 to 15 kt after midnight. Gusts up to 25 kt. Seas 5 to 7 ft, subsiding to 4 to 5 ft after midnight. Wave Detail: SW 6 ft at 8 seconds and SE 3 ft at 10 seconds, becoming SW 5 ft at 7 seconds and NE 1 foot at 4 seconds. A chance of showers. .FRI AND FRI NIGHT...NW winds 10 to 15 kt with gusts up to 20 kt, becoming N 5 to 10 kt. Seas 2 to 4 ft. .SAT AND SAT NIGHT...E winds 5 to 10 kt, becoming S. 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. $$
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ANZ230 Boston HarborExpires:202609090600;;118492 FZUS51 KBOX 081704 CWFBOX Coastal Waters Forecast for Massachusetts and Rhode Island National Weather Service Boston/Norton MA 103 PM EDT Tue Sep 8 2026 Coastal waters from the Merrimack River MA to Watch Hill RI out to 60 NM ANZ230-090600- Boston Harbor- 103 PM EDT Tue Sep 8 2026 .THIS AFTERNOON...E winds 5 to 10 kt. Waves 1 foot or less. .TONIGHT...SE winds 5 to 10 kt, diminishing to around 5 kt after midnight. Waves 1 foot or less. .WED...SE winds 5 to 10 kt, becoming S 10 to 15 kt with gusts up to 20 kt in the afternoon. Waves 1 foot or less, then around 2 ft in the afternoon. .WED NIGHT...SW winds 15 to 20 kt with gusts up to 25 kt. Waves around 2 ft. A chance of showers after midnight. .THU...W winds 10 to 15 kt with gusts up to 25 kt. Waves around 2 ft. A chance of showers in the morning. .THU NIGHT...W winds 5 to 10 kt. Gusts up to 20 kt in the evening. Waves around 2 ft in the evening, then 1 foot or less. .FRI THROUGH SAT NIGHT...S winds 5 to 10 kt with gusts up to 20 kt. Waves around 2 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$
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