


Coastal Waters Forecast
Issued by NWS Boston, MA
Issued by NWS Boston, MA
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154 FZUS51 KBOX 112304 CWFBOX Coastal Waters Forecast for Massachusetts and Rhode Island National Weather Service Boston/Norton MA 704 PM EDT Sat Oct 11 2025 Coastal waters from the Merrimack River MA to Watch Hill RI out to 25 NM ANZ200-121200- 704 PM EDT Sat Oct 11 2025 .Synopsis for Massachusetts and Rhode Island coastal waters... High pres remains over the Maritimes today. A coastal storm has the potential to bring E storm-force wind gusts and rain to the waters Sun into Tue. Decreasing winds and rain are expected through midweek as high pres returns from the NW. $$ ANZ250-121200- Coastal waters east of Ipswich Bay and the Stellwagen Bank National Marine Sanctuary- 704 PM EDT Sat Oct 11 2025 ...GALE WARNING IN EFFECT FROM SUNDAY MORNING THROUGH MONDAY EVENING... .TONIGHT...SE winds 5 to 10 kt, becoming E 10 to 15 kt with gusts up to 20 kt after midnight. Seas 2 to 3 ft. Wave Detail: SE 3 ft at 4 seconds and SW 1 foot at 2 seconds. .SUN...E winds 20 to 25 kt with gusts up to 35 kt. Seas 3 to 5 ft, building to 5 to 7 ft in the afternoon. Wave Detail: E 5 ft at 5 seconds and SE 1 foot at 10 seconds, becoming E 7 ft at 6 seconds and SE 6 ft at 9 seconds. A chance of rain in the afternoon. .SUN NIGHT...NE winds 25 to 30 kt with gusts up to 40 kt. Seas 7 to 10 ft, building to 9 to 13 ft after midnight. Wave Detail: SE 10 ft at 10 seconds and E 9 ft at 7 seconds, becoming E 13 ft at 12 seconds and NE 9 ft at 7 seconds. Rain. Vsby 1 to 3 NM. .MON...NE winds 30 to 35 kt with gusts up to 40 kt. Seas 11 to 15 ft. Wave Detail: E 15 ft at 12 seconds and NE 9 ft at 8 seconds. Rain in the morning, then showers in the afternoon. Vsby 1 to 3 NM. .MON NIGHT...NE winds 25 to 30 kt with gusts up to 40 kt. Seas 10 to 14 ft. Wave Detail: E 14 ft at 12 seconds and NE 8 ft at 8 seconds. Showers. Vsby 1 to 3 NM. .TUE...NE winds 25 to 30 kt, becoming N 20 to 25 kt in the afternoon. Seas 9 to 12 ft. Wave Detail: E 12 ft at 11 seconds and NE 7 ft at 7 seconds. Showers likely. Vsby 1 to 3 NM in the morning. .TUE NIGHT...N winds 15 to 20 kt with gusts up to 30 kt, diminishing to 10 to 15 kt with gusts up to 20 kt after midnight. Seas 7 to 10 ft, subsiding to 6 to 8 ft after midnight. A chance of showers. .WED THROUGH THU...N winds 20 to 25 kt with gusts up to 35 kt. Seas 5 to 7 ft. A chance of showers. .THU NIGHT...N winds 20 to 25 kt with gusts up to 35 kt. Seas 7 to 10 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. $$ ANZ251-121200- Massachusetts Bay and Ipswich Bay- 704 PM EDT Sat Oct 11 2025 ...GALE WARNING IN EFFECT FROM SUNDAY MORNING THROUGH MONDAY EVENING... .TONIGHT...SE winds 5 to 10 kt, becoming E 10 to 15 kt with gusts up to 20 kt after midnight. Seas 1 foot or less, then around 2 ft after midnight. Wave Detail: SW 1 foot at 2 seconds and SE 1 foot at 3 seconds, becoming E 2 ft at 3 seconds and SE 1 foot at 10 seconds. .SUN...E winds 15 to 20 kt, becoming NE 20 to 25 kt in the afternoon. Gusts up to 35 kt. Seas 2 to 3 ft, building to 3 to 5 ft in the afternoon. Wave Detail: E 3 ft at 5 seconds and SE 1 foot at 10 seconds, becoming E 5 ft at 6 seconds and SE 5 ft at 10 seconds. A chance of rain in the afternoon. .SUN NIGHT...NE winds 25 to 30 kt with gusts up to 40 kt. Seas 5 to 7 ft, building to 6 to 9 ft after midnight. Wave Detail: E 7 ft at 7 seconds and SE 6 ft at 9 seconds, becoming NE 9 ft at 8 seconds and E 9 ft at 9 seconds. Rain. Vsby 1 to 3 NM. .MON...NE winds 25 to 30 kt with gusts up to 40 kt. Seas 9 to 12 ft. Wave Detail: E 12 ft at 11 seconds and NE 10 ft at 8 seconds. Rain in the morning, then showers in the afternoon. Vsby 1 to 3 NM. .MON NIGHT...NE winds 25 to 30 kt with gusts up to 40 kt. Seas 9 to 12 ft. Wave Detail: E 12 ft at 11 seconds and NE 8 ft at 8 seconds. Showers. Vsby 1 to 3 NM. .TUE...NE winds 20 to 25 kt with gusts up to 30 kt. Seas 7 to 10 ft. Wave Detail: E 10 ft at 11 seconds and N 8 ft at 7 seconds. Showers likely. Vsby 1 to 3 NM in the morning. .TUE NIGHT...N winds 15 to 20 kt with gusts up to 30 kt, diminishing to 10 to 15 kt with gusts up to 20 kt after midnight. Seas 5 to 8 ft. A chance of showers. .WED...NW winds 10 to 15 kt with gusts up to 25 kt. Seas 3 to 5 ft. .WED NIGHT...NW winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to 5 ft. A chance of showers. .THU...NW winds 20 to 25 kt with gusts up to 30 kt. Seas 3 to 5 ft. .THU NIGHT...N winds 20 to 25 kt with gusts up to 30 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. $$ ANZ231-121200- Cape Cod Bay- 704 PM EDT Sat Oct 11 2025 ...GALE WARNING IN EFFECT FROM SUNDAY MORNING THROUGH MONDAY EVENING... .TONIGHT...SE winds around 10 kt, becoming E 15 to 20 kt with gusts up to 25 kt after midnight. Seas 1 foot or less, then 2 to 3 ft after midnight. Wave Detail: SE 1 foot at 2 seconds and W 1 foot at 3 seconds, becoming E 2 ft at 3 seconds and SE 1 foot at 9 seconds. .SUN...E winds around 20 kt with gusts up to 30 kt, increasing to 25 to 30 kt with gusts up to 40 kt in the afternoon. Seas 3 to 4 ft, building to 4 to 6 ft in the afternoon. Wave Detail: E 3 ft at 4 seconds and SE 2 ft at 9 seconds, becoming SE 6 ft at 10 seconds and E 5 ft at 4 seconds. A chance of rain in the morning, then rain likely in the afternoon. .SUN NIGHT...NE winds 25 to 30 kt with gusts up to 40 kt. Seas 5 to 7 ft. Wave Detail: NE 7 ft at 5 seconds and E 7 ft at 11 seconds. Rain. Vsby 1 to 3 NM. .MON...NE winds 25 to 30 kt with gusts up to 40 kt. Seas 5 to 7 ft. Wave Detail: NE 7 ft at 6 seconds and E 7 ft at 11 seconds. Rain in the morning, then showers in the afternoon. Vsby 1 to 3 NM. .MON NIGHT...NE winds 25 to 30 kt with gusts up to 40 kt. Seas 5 to 8 ft. Wave Detail: E 8 ft at 11 seconds and NE 7 ft at 6 seconds. Showers. Vsby 1 to 3 NM. .TUE...NE winds 20 to 25 kt with gusts up to 35 kt. Seas 5 to 7 ft. Wave Detail: E 7 ft at 11 seconds and N 6 ft at 6 seconds. Showers likely. Vsby 1 to 3 NM in the morning. .TUE NIGHT...N winds 20 to 25 kt with gusts up to 30 kt, diminishing to 10 to 15 kt with gusts up to 20 kt after midnight. Seas 4 to 6 ft. Showers likely, mainly in the evening. .WED AND WED NIGHT...N winds 15 to 20 kt, increasing to 20 to 25 kt. Gusts up to 30 kt. Seas 2 to 4 ft. A chance of showers. .THU...N winds 20 to 25 kt with gusts up to 40 kt. Seas 3 to 5 ft. A chance of showers. .THU NIGHT...N winds 25 to 30 kt with gusts up to 35 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. $$ ANZ254-121200- Coastal waters from Provincetown MA to Chatham MA to Nantucket MA out 20 nm- 704 PM EDT Sat Oct 11 2025 ...GALE WARNING IN EFFECT FROM SUNDAY MORNING THROUGH MONDAY EVENING... .TONIGHT...E winds 10 to 15 kt, increasing to 15 to 20 kt with gusts up to 25 kt after midnight. Seas 2 to 3 ft, building to 3 to 5 ft after midnight. Wave Detail: SE 2 ft at 3 seconds and W 1 foot at 3 seconds, becoming E 4 ft at 5 seconds and SE 1 foot at 9 seconds. .SUN...E winds 20 to 25 kt, increasing to 25 to 30 kt in the afternoon. Gusts up to 40 kt. Seas 4 to 6 ft, building to 6 to 9 ft in the afternoon. Wave Detail: E 6 ft at 6 seconds and SE 3 ft at 9 seconds, becoming SE 9 ft at 9 seconds and E 8 ft at 7 seconds. A chance of rain in the morning, then rain likely in the afternoon. Vsby 1 to 3 NM in the morning. .SUN NIGHT...E winds 25 to 35 kt, becoming NE 30 to 35 kt after midnight. Gusts up to 45 kt. Seas 9 to 12 ft, building to 10 to 14 ft after midnight. Wave Detail: SE 12 ft at 13 seconds and E 8 ft at 7 seconds, becoming E 14 ft at 12 seconds and NE 7 ft at 7 seconds. Rain. Vsby 1 to 3 NM. .MON...E winds 30 to 35 kt with gusts up to 40 kt. Seas 12 to 16 ft. Wave Detail: E 16 ft at 12 seconds and NE 4 ft at 6 seconds. Rain in the morning, then showers in the afternoon. Vsby 1 to 3 NM. .MON NIGHT...E winds 25 to 30 kt with gusts up to 35 kt. Seas 11 to 15 ft. Wave Detail: E 15 ft at 11 seconds and NE 3 ft at 6 seconds. Showers. Vsby 1 to 3 NM. .TUE...NE winds 20 to 25 kt with gusts up to 30 kt. Seas 9 to 13 ft. Wave Detail: E 13 ft at 11 seconds and N 3 ft at 5 seconds. Showers likely. Vsby 1 to 3 NM in the morning. .TUE NIGHT...N winds 20 to 25 kt, diminishing to 15 to 20 kt after midnight. Gusts up to 30 kt. Seas 7 to 10 ft. Showers likely, mainly in the evening. .WED...N winds 15 to 20 kt with gusts up to 25 kt. Seas 5 to 8 ft. A chance of showers. .WED NIGHT AND THU...N winds 20 to 25 kt with gusts up to 30 kt. Seas 5 to 7 ft. A chance of showers. .THU NIGHT...N winds 25 to 30 kt. Seas 7 to 10 ft. Showers likely. 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. $$ ANZ255-121200- Coastal Waters extending out to 25 nm South of Marthas Vineyard and Nantucket- 704 PM EDT Sat Oct 11 2025 ...STORM WARNING IN EFFECT FROM SUNDAY AFTERNOON THROUGH MONDAY MORNING... .TONIGHT...E winds 15 to 20 kt, increasing to 25 to 30 kt after midnight. Seas 2 to 4 ft, building to 4 to 6 ft after midnight. Wave Detail: E 3 ft at 4 seconds and SE 2 ft at 8 seconds, becoming E 6 ft at 5 seconds and SE 2 ft at 9 seconds. .SUN...E winds 25 to 30 kt, becoming NE 30 to 35 kt in the afternoon. Gusts up to 45 kt. Seas 5 to 8 ft, building to 8 to 11 ft in the afternoon. Wave Detail: E 8 ft at 6 seconds and SE 5 ft at 9 seconds, becoming E 9 ft at 7 seconds and SE 9 ft at 13 seconds. A chance of rain in the morning, then rain in the afternoon. Vsby 1 to 3 NM. .SUN NIGHT...NE winds 35 to 40 kt with gusts up to 50 kt. Seas 11 to 15 ft. Wave Detail: E 15 ft at 12 seconds and NE 10 ft at 7 seconds. Rain. Vsby 1 to 3 NM. .MON...E winds 30 to 40 kt with gusts up to 45 kt. Seas 12 to 16 ft. Wave Detail: E 16 ft at 12 seconds and NE 4 ft at 6 seconds. Rain in the morning, then showers in the afternoon. Vsby 1 to 3 NM. .MON NIGHT...E winds 30 to 35 kt, becoming NE 25 to 30 kt after midnight. Seas 10 to 14 ft. Wave Detail: E 14 ft at 11 seconds and NE 4 ft at 6 seconds. Showers. Vsby 1 to 3 NM. .TUE AND TUE NIGHT...N winds 25 to 30 kt with gusts up to 35 kt. Seas 8 to 11 ft. Wave Detail: E 11 ft at 11 seconds and N 6 ft at 6 seconds. Showers likely . Vsby 1 to 3 NM. .WED THROUGH THU NIGHT...N winds 25 to 30 kt with gusts up to 35 kt. Seas 5 to 7 ft. A chance of showers. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ256-121200- Coastal Waters from Montauk NY to Marthas Vineyard extending out to 20 nm South of Block Island- 704 PM EDT Sat Oct 11 2025 ...STORM WARNING IN EFFECT FROM SUNDAY AFTERNOON THROUGH MONDAY MORNING... .TONIGHT...E winds 15 to 20 kt, increasing to 25 to 30 kt after midnight. Seas 3 to 5 ft, building to 5 to 8 ft after midnight. Wave Detail: E 4 ft at 5 seconds and SE 4 ft at 8 seconds, becoming E 7 ft at 6 seconds and SE 3 ft at 9 seconds. A slight chance of rain after midnight. .SUN...NE winds 30 to 35 kt. Gusts up to 40 kt, increasing to 50 kt in the afternoon. Seas 7 to 10 ft, building to 9 to 13 ft in the afternoon. Wave Detail: E 9 ft at 7 seconds and SE 6 ft at 9 seconds, becoming SE 11 ft at 12 seconds and E 10 ft at 7 seconds. Rain. Vsby 1 to 3 NM. .SUN NIGHT...NE winds 35 to 40 kt with gusts up to 55 kt. Seas 12 to 16 ft, building to 14 to 17 ft after midnight. Wave Detail: SE 16 ft at 12 seconds and NE 10 ft at 7 seconds, becoming E 17 ft at 12 seconds and NE 4 ft at 6 seconds. Rain. Vsby 1 to 3 NM. .MON...NE winds 35 to 40 kt with gusts up to 45 kt. Seas 13 to 17 ft. Wave Detail: E 17 ft at 12 seconds and NE 4 ft at 6 seconds. Rain in the morning. Showers in the afternoon. Vsby 1 to 3 NM. .MON NIGHT...NE winds 30 to 35 kt with gusts up to 40 kt. Seas 12 to 16 ft. Wave Detail: E 16 ft at 12 seconds and N 6 ft at 6 seconds. Showers. Vsby 1 to 3 NM. .TUE...N winds 25 to 30 kt with gusts up to 35 kt. Seas 9 to 13 ft. Wave Detail: E 12 ft at 11 seconds and N 7 ft at 6 seconds. Showers likely. Vsby 1 to 3 NM in the morning. .TUE NIGHT...N winds 25 to 30 kt, diminishing to 20 to 25 kt after midnight. Seas 9 to 12 ft, subsiding to 7 to 10 ft after midnight. A chance of showers. .WED AND WED NIGHT...N winds 15 to 20 kt, increasing to 25 to 30 kt. Seas 5 to 8 ft. A chance of showers. .THU...NW winds 25 to 30 kt. Seas 5 to 7 ft. .THU NIGHT...N winds 25 to 30 kt with gusts up to 35 kt. Seas 4 to 6 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. $$ ANZ232-121200- Nantucket Sound- 704 PM EDT Sat Oct 11 2025 ...STORM WARNING IN EFFECT FROM SUNDAY AFTERNOON THROUGH MONDAY MORNING... .TONIGHT...E winds 10 to 15 kt with gusts up to 20 kt, increasing to 20 to 25 kt with gusts up to 30 kt after midnight. Seas 2 to 4 ft. Wave Detail: E 4 ft at 4 seconds and SE 1 foot at 9 seconds. .SUN...E winds 25 to 30 kt. Gusts up to 45 kt in the afternoon. Seas 4 to 6 ft. Wave Detail: E 6 ft at 6 seconds and SE 5 ft at 12 seconds. A chance of rain in the morning, then rain likely in the afternoon. Vsby 1 to 3 NM. .SUN NIGHT...NE winds 30 to 40 kt with gusts up to 50 kt. Seas 6 to 9 ft. Wave Detail: E 8 ft at 6 seconds and SE 7 ft at 11 seconds. Rain. Vsby 1 to 3 NM. .MON...NE winds 30 to 40 kt. Seas 6 to 9 ft. Wave Detail: NE 8 ft at 6 seconds and E 7 ft at 11 seconds. Rain in the morning, then showers in the afternoon. Vsby 1 to 3 NM. .MON NIGHT...NE winds 30 to 35 kt with gusts up to 40 kt. Seas 6 to 9 ft. Wave Detail: E 6 ft at 6 seconds and E 6 ft at 11 seconds. Showers. Vsby 1 to 3 NM. .TUE AND TUE NIGHT...N winds 25 to 30 kt. Seas 5 to 7 ft. Wave Detail: N 6 ft at 5 seconds and E 4 ft at 11 seconds. Showers likely . Vsby 1 to 3 NM. .WED THROUGH THU...NW winds 25 to 30 kt. Seas 3 to 5 ft. A chance of showers. .THU NIGHT...N winds 25 to 30 kt with gusts up to 35 kt. Seas 4 to 6 ft. A chance of showers. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ233-121200- Vineyard Sound- 704 PM EDT Sat Oct 11 2025 ...GALE WARNING IN EFFECT FROM SUNDAY MORNING THROUGH MONDAY EVENING... .TONIGHT...E winds 10 to 15 kt, becoming NE 20 to 25 kt after midnight. Seas 2 to 4 ft. Wave Detail: E 2 ft at 3 seconds and SW 1 foot at 4 seconds. .SUN...E winds 20 to 25 kt with gusts up to 30 kt, becoming NE 25 to 30 kt with gusts up to 40 kt in the afternoon. Seas 3 to 5 ft, building to 5 to 7 ft in the afternoon. Wave Detail: E 3 ft at 4 seconds and SE 3 ft at 9 seconds, becoming SE 7 ft at 12 seconds and NE 4 ft at 5 seconds. A chance of rain in the morning, then rain in the afternoon. Vsby 1 to 3 NM. .SUN NIGHT...NE winds 30 to 35 kt with gusts up to 45 kt. Seas 5 to 8 ft. Wave Detail: SE 8 ft at 13 seconds and NE 5 ft at 5 seconds. Rain. Vsby 1 to 3 NM. .MON...NE winds 30 to 35 kt with gusts up to 40 kt. Seas 5 to 8 ft. Wave Detail: SE 8 ft at 12 seconds and NE 5 ft at 5 seconds. Rain in the morning, then showers in the afternoon. Vsby 1 to 3 NM. .MON NIGHT...NE winds 25 to 30 kt with gusts up to 35 kt. Seas 5 to 8 ft. Wave Detail: NE 5 ft at 5 seconds and SE 4 ft at 11 seconds. Showers. Vsby 1 to 3 NM. .TUE...N winds around 25 kt with gusts up to 30 kt. Seas 4 to 6 ft. Wave Detail: N 4 ft at 6 seconds and SE 3 ft at 10 seconds. Showers likely. Vsby 1 to 3 NM in the morning. .TUE NIGHT...N winds 20 to 25 kt with gusts up to 30 kt, diminishing to 15 to 20 kt after midnight. Seas 3 to 5 ft. Showers likely, mainly in the evening. .WED AND WED NIGHT...N winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 4 ft. A chance of showers. .THU AND THU NIGHT...N winds 20 to 25 kt. Seas 3 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. $$ ANZ234-121200- Buzzards Bay- 704 PM EDT Sat Oct 11 2025 ...GALE WARNING IN EFFECT FROM SUNDAY MORNING THROUGH MONDAY EVENING... .TONIGHT...E winds 10 to 15 kt, becoming NE 15 to 20 kt with gusts up to 25 kt after midnight. Seas 2 to 4 ft. Wave Detail: E 2 ft at 3 seconds and SW 1 foot at 4 seconds. .SUN...NE winds 20 to 25 kt with gusts up to 30 kt, increasing to 25 to 30 kt with gusts up to 40 kt in the afternoon. Seas 4 to 6 ft. Wave Detail: SE 6 ft at 11 seconds and NE 4 ft at 4 seconds. A chance of rain in the morning, then rain in the afternoon. Vsby 1 to 3 NM. .SUN NIGHT...NE winds 25 to 35 kt, becoming 30 to 35 kt after midnight. Seas 4 to 6 ft. Wave Detail: SE 6 ft at 12 seconds and NE 5 ft at 5 seconds. Rain. Vsby 1 to 3 NM. .MON...NE winds around 30 kt with gusts up to 40 kt. Seas 4 to 6 ft. Wave Detail: E 6 ft at 11 seconds and NE 5 ft at 5 seconds. Rain in the morning, then showers in the afternoon. Vsby 1 to 3 NM. .MON NIGHT...NE winds 25 to 30 kt with gusts up to 40 kt. Seas 4 to 6 ft. Wave Detail: NE 5 ft at 5 seconds and SE 5 ft at 11 seconds. Showers. Vsby 1 to 3 NM. .TUE...N winds 25 to 30 kt, diminishing to 20 to 25 kt in the afternoon. Seas 3 to 5 ft. Wave Detail: N 4 ft at 5 seconds and SE 4 ft at 10 seconds. Showers likely. Vsby 1 to 3 NM in the morning. .TUE NIGHT...N winds 20 to 25 kt with gusts up to 30 kt, diminishing to 10 to 15 kt with gusts up to 20 kt after midnight. Seas 2 to 4 ft. Showers likely, mainly in the evening. .WED...N winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 3 ft. .WED NIGHT...N winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 3 ft. A chance of showers. .THU AND THU NIGHT...NW winds 20 to 25 kt with gusts up to 30 kt. Seas 3 to 5 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ235-121200- Rhode Island Sound- 704 PM EDT Sat Oct 11 2025 ...STORM WARNING IN EFFECT FROM SUNDAY AFTERNOON THROUGH MONDAY MORNING... .TONIGHT...E winds 15 to 20 kt, becoming NE 20 to 25 kt with gusts up to 30 kt after midnight. Seas 2 to 4 ft, building to 4 to 6 ft after midnight. Wave Detail: SE 3 ft at 5 seconds and SE 2 ft at 8 seconds, becoming E 6 ft at 6 seconds and SE 2 ft at 9 seconds. .SUN...NE winds 25 to 30 kt. Gusts up to 45 kt in the afternoon. Seas 5 to 7 ft, building to 6 to 9 ft in the afternoon. Wave Detail: SE 7 ft at 8 seconds and E 6 ft at 7 seconds, becoming SE 9 ft at 13 seconds and NE 6 ft at 5 seconds. A chance of rain in the morning, then rain in the afternoon. Vsby 1 to 3 NM. .SUN NIGHT...NE winds 30 to 40 kt with gusts up to 50 kt. Seas 9 to 12 ft. Wave Detail: SE 12 ft at 13 seconds and NE 7 ft at 6 seconds. Rain. Vsby 1 to 3 NM. .MON...NE winds 30 to 35 kt with gusts up to 40 kt. Seas 9 to 12 ft. Wave Detail: SE 12 ft at 13 seconds and NE 7 ft at 6 seconds. Rain in the morning, then showers in the afternoon. Vsby 1 to 3 NM. .MON NIGHT...NE winds 25 to 30 kt with gusts up to 35 kt. Seas 8 to 11 ft. Wave Detail: SE 10 ft at 12 seconds and NE 7 ft at 6 seconds. Showers. Vsby 1 to 3 NM. .TUE...N winds 25 to 30 kt with gusts up to 35 kt. Seas 6 to 9 ft. Wave Detail: SE 8 ft at 11 seconds and N 6 ft at 6 seconds. Showers likely. Vsby 1 to 3 NM in the morning. .TUE NIGHT...N winds 20 to 25 kt with gusts up to 30 kt, diminishing to 15 to 20 kt after midnight. Seas 5 to 7 ft. A chance of showers. .WED...N winds around 15 kt with gusts up to 20 kt. Seas 3 to 5 ft. .WED NIGHT...N winds 20 to 25 kt. Seas 3 to 5 ft. A chance of showers. .THU AND THU NIGHT...N winds 20 to 25 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. $$ ANZ237-121200- Block Island Sound- 704 PM EDT Sat Oct 11 2025 ...STORM WARNING IN EFFECT FROM SUNDAY AFTERNOON THROUGH MONDAY MORNING... .TONIGHT...E winds 15 to 20 kt, becoming NE 20 to 25 kt with gusts up to 30 kt after midnight. Seas 2 to 4 ft, building to 4 to 6 ft after midnight. Wave Detail: E 3 ft at 5 seconds and SE 2 ft at 8 seconds, becoming E 5 ft at 5 seconds and SE 2 ft at 8 seconds. .SUN...NE winds 25 to 30 kt. Gusts up to 45 kt in the afternoon. Seas 5 to 7 ft, building to 7 to 10 ft in the afternoon. Wave Detail: SE 6 ft at 7 seconds and SE 1 foot at 15 seconds, becoming SE 9 ft at 9 seconds and E 6 ft at 6 seconds. A chance of rain in the morning, then rain in the afternoon. Vsby 1 to 3 NM. .SUN NIGHT...NE winds 30 to 35 kt with gusts up to 50 kt. Seas 8 to 11 ft, building to 9 to 13 ft after midnight. Wave Detail: SE 11 ft at 13 seconds and NE 6 ft at 6 seconds, becoming SE 13 ft at 12 seconds and NE 6 ft at 6 seconds. Rain. Vsby 1 to 3 NM. .MON...NE winds 30 to 35 kt with gusts up to 45 kt. Seas 10 to 13 ft. Wave Detail: SE 13 ft at 12 seconds and NE 5 ft at 6 seconds. Rain in the morning. Showers in the afternoon. Vsby 1 to 3 NM. .MON NIGHT...NE winds 25 to 30 kt with gusts up to 35 kt. Seas 9 to 13 ft. Wave Detail: SE 12 ft at 12 seconds and NE 5 ft at 6 seconds. Showers. Vsby 1 to 3 NM. .TUE...N winds 25 to 30 kt, diminishing to 20 to 25 kt in the afternoon. Seas 7 to 10 ft. Wave Detail: SE 9 ft at 11 seconds and N 5 ft at 6 seconds. Showers likely, mainly in the morning with vsby 1 to 3 NM. .TUE NIGHT...N winds 20 to 25 kt with gusts up to 30 kt, diminishing to around 15 kt with gusts up to 20 kt after midnight. Seas 5 to 8 ft. A chance of showers. .WED...N winds 10 to 15 kt with gusts up to 20 kt. Seas 4 to 6 ft. .WED NIGHT THROUGH THU NIGHT...N winds 20 to 25 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. $$ ANZ230-121200- Boston Harbor- 704 PM EDT Sat Oct 11 2025 ...GALE WARNING IN EFFECT FROM SUNDAY AFTERNOON THROUGH MONDAY EVENING... .TONIGHT...SE winds 5 to 10 kt, becoming E 10 to 15 kt after midnight. Waves 1 foot or less, then around 2 ft after midnight. .SUN...E winds 15 to 20 kt, becoming NE 20 to 25 kt in the afternoon. Gusts up to 30 kt. Waves 2 to 3 ft. A chance of rain in the morning, then rain likely in the afternoon. .SUN NIGHT...NE winds 25 to 30 kt with gusts up to 35 kt. Waves 2 to 3 ft, except 4 to 6 ft at the outer harbor entrance. Rain. Vsby 1 to 3 NM after midnight. .MON...NE winds 25 to 30 kt with gusts up to 35 kt. Waves 2 to 3 ft, except 5 to 7 ft at the outer harbor entrance. Rain in the morning, then showers in the afternoon. Vsby 1 to 3 NM. .MON NIGHT AND TUE...N winds 25 to 30 kt with gusts up to 35 kt. Waves 2 to 3 ft, except 5 to 7 ft at the outer harbor entrance. Showers. Vsby 1 to 3 NM. .TUE NIGHT...N winds 10 to 15 kt. Gusts up to 20 kt in the evening. Waves around 2 ft in the evening, then 1 foot or less. At the outer harbor entrance, waves 3 to 5 ft. A chance of showers. .WED THROUGH THU NIGHT...NW winds 15 to 20 kt with gusts up to 25 kt. Waves around 2 ft, except 3 to 5 ft at the outer harbor entrance. 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. $$ ANZ236-121200- Narragansett Bay- 704 PM EDT Sat Oct 11 2025 ...GALE WARNING IN EFFECT FROM SUNDAY AFTERNOON THROUGH MONDAY AFTERNOON... .TONIGHT...E winds around 10 kt, becoming NE 15 to 20 kt with gusts up to 25 kt after midnight. Waves 2 to 3 ft. .SUN...NE winds 20 to 25 kt with gusts up to 35 kt. Waves 2 to 3 ft, except 4 to 6 ft at the bay entrance. A chance of rain in the morning, then rain likely in the afternoon. Vsby 1 to 3 NM. .SUN NIGHT...NE winds 25 to 30 kt with gusts up to 40 kt. Waves around 3 ft, except 5 to 7 ft at the bay entrance. Rain. Vsby 1 to 3 NM. .MON...NE winds 25 to 30 kt with gusts up to 35 kt. Waves around 3 ft, except 5 to 7 ft at the bay entrance. Rain in the morning, then showers in the afternoon. Vsby 1 to 3 NM. .MON NIGHT...NE winds 20 to 25 kt with gusts up to 30 kt. Waves around 3 ft, except 5 to 7 ft at the bay entrance. Showers. Vsby 1 to 3 NM. .TUE...N winds 20 to 25 kt with gusts up to 30 kt. Waves around 3 ft, except 4 to 6 ft at the bay entrance. Showers likely, mainly in the morning with vsby 1 to 3 NM. .TUE NIGHT...N winds 15 to 20 kt with gusts up to 25 kt, diminishing to 10 to 15 kt after midnight. Waves 2 to 3 ft. A chance of showers. .WED THROUGH THU NIGHT...NW winds 15 to 20 kt with gusts up to 25 kt. Waves 2 to 3 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ 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