


Coastal Waters Forecast
Issued by NWS Boston, MA
Issued by NWS Boston, MA
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614 FZUS51 KBOX 111104 CWFBOX Coastal Waters Forecast for Massachusetts and Rhode Island National Weather Service Boston/Norton MA 704 AM EDT Sat Oct 11 2025 Coastal waters from the Merrimack River MA to Watch Hill RI out to 25 NM ANZ200-120000- 704 AM 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. $$ ANZ250-120000- Coastal waters east of Ipswich Bay and the Stellwagen Bank National Marine Sanctuary- 704 AM EDT Sat Oct 11 2025 ...STORM WATCH IN EFFECT FROM SUNDAY AFTERNOON THROUGH MONDAY EVENING... .TODAY...SW winds 5 to 10 kt, becoming S this afternoon. Seas around 2 ft. Wave Detail: SW 2 ft at 3 seconds and NE 1 foot at 4 seconds. .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: E 2 ft at 3 seconds and W 1 foot at 2 seconds. .SUN...E winds 15 to 20 kt with gusts up to 30 kt, becoming NE 20 to 25 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 4 ft at 6 seconds and SE 1 foot at 10 seconds, becoming E 6 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 45 kt. Seas 6 to 9 ft, building to 9 to 13 ft after midnight. Wave Detail: SE 8 ft at 10 seconds and NE 7 ft at 6 seconds, becoming SE 13 ft at 12 seconds and NE 8 ft at 7 seconds. Rain. Vsby 1 to 3 NM after midnight. .MON...NE winds 25 to 30 kt with gusts up to 45 kt. Seas 12 to 16 ft. Wave Detail: E 15 ft at 12 seconds and NE 8 ft at 7 seconds. Rain. Vsby 1 to 3 NM. .MON NIGHT...NE winds 25 to 30 kt, diminishing to 20 to 25 kt after midnight. Gusts up to 40 kt. Seas 12 to 16 ft, subsiding to 11 to 14 ft after midnight. Wave Detail: E 14 ft at 12 seconds and NE 8 ft at 7 seconds, becoming E 13 ft at 11 seconds and NE 6 ft at 7 seconds. Rain. Vsby 1 to 3 NM. .TUE...NE winds 25 to 30 kt with gusts up to 35 kt. Seas 9 to 13 ft. Rain. Vsby 1 to 3 NM. .TUE NIGHT...N winds 15 to 20 kt with gusts up to 30 kt. Seas 8 to 11 ft. Rain likely. .WED...N winds 10 to 15 kt with gusts up to 20 kt. Seas 6 to 9 ft. A chance of showers. .WED NIGHT...N winds 15 to 20 kt with gusts up to 30 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. $$ ANZ251-120000- Massachusetts Bay and Ipswich Bay- 704 AM EDT Sat Oct 11 2025 ...STORM WATCH IN EFFECT FROM SUNDAY AFTERNOON THROUGH MONDAY EVENING... .TODAY...SW winds 5 to 10 kt, becoming SE this afternoon. Seas around 2 ft this morning, then 1 foot or less. Wave Detail: SW 1 foot at 3 seconds and NE 1 foot at 5 seconds, becoming W 1 foot at 2 seconds and SE 1 foot at 4 seconds. .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: SE 1 foot at 3 seconds and E 1 foot at 10 seconds, becoming E 2 ft at 3 seconds and SE 1 foot at 10 seconds. .SUN...NE winds 15 to 20 kt, increasing to 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 4 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 4 to 6 ft, building to 6 to 9 ft after midnight. Wave Detail: E 6 ft at 6 seconds and SE 5 ft at 13 seconds, becoming NE 9 ft at 7 seconds and SE 7 ft at 9 seconds. Rain. Vsby 1 to 3 NM. .MON...NE winds 25 to 30 kt with gusts up to 45 kt. Seas 8 to 11 ft. Wave Detail: E 11 ft at 11 seconds and NE 9 ft at 7 seconds. Rain. Vsby 1 to 3 NM. .MON NIGHT...NE winds 25 to 30 kt. Gusts up to 40 kt in the evening. Seas 9 to 12 ft. Wave Detail: E 11 ft at 11 seconds and NE 8 ft at 8 seconds. Rain. Vsby 1 to 3 NM. .TUE...NE winds 20 to 25 kt with gusts up to 35 kt. Seas 7 to 10 ft. Rain. Vsby 1 to 3 NM. .TUE NIGHT...N winds 15 to 20 kt with gusts up to 30 kt. Seas 6 to 9 ft. A chance of rain. .WED...N winds 10 to 15 kt with gusts up to 20 kt. Seas 5 to 7 ft. .WED NIGHT...N 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. $$ ANZ231-120000- Cape Cod Bay- 704 AM EDT Sat Oct 11 2025 ...STORM WATCH IN EFFECT FROM SUNDAY AFTERNOON THROUGH MONDAY EVENING... .TODAY...S winds 5 to 10 kt. Seas 1 foot or less. Wave Detail: S 1 foot at 2 seconds and NW 1 foot at 4 seconds. .TONIGHT...E winds 10 to 15 kt. Gusts up to 20 kt after midnight. Seas 1 foot or less, then 2 to 3 ft after midnight. Wave Detail: NW 1 foot at 3 seconds and E 1 foot at 3 seconds, becoming E 2 ft at 4 seconds and SE 1 foot at 9 seconds. .SUN...E winds 15 to 20 kt with gusts up to 30 kt, becoming NE 20 to 25 kt with gusts up to 40 kt in the afternoon. Seas 3 to 5 ft. Wave Detail: SE 5 ft at 10 seconds and E 4 ft at 5 seconds. A chance of rain in the afternoon. .SUN NIGHT...NE winds 25 to 30 kt with gusts up to 45 kt. Seas 5 to 7 ft. Wave Detail: SE 7 ft at 11 seconds and NE 6 ft at 5 seconds. Rain. Vsby 1 to 3 NM. .MON...NE winds 25 to 30 kt with gusts up to 45 kt. Seas 5 to 7 ft. Wave Detail: E 7 ft at 11 seconds and NE 6 ft at 5 seconds. Rain. Vsby 1 to 3 NM. .MON NIGHT...NE winds 25 to 30 kt. Gusts up to 40 kt, decreasing to 30 kt after midnight. Seas 5 to 7 ft. Wave Detail: E 7 ft at 11 seconds and NE 6 ft at 6 seconds. Rain. Vsby 1 to 3 NM. .TUE AND TUE NIGHT...NE winds 20 to 25 kt with gusts up to 35 kt. Seas 4 to 6 ft. Rain. Vsby 1 to 3 NM. .WED...N winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 5 ft. A chance of showers. .WED NIGHT...N winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 4 ft. A chance of showers. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ254-120000- Coastal waters from Provincetown MA to Chatham MA to Nantucket MA out 20 nm- 704 AM EDT Sat Oct 11 2025 ...STORM WATCH IN EFFECT FROM SUNDAY AFTERNOON THROUGH MONDAY EVENING... .TODAY...S winds 5 to 10 kt, becoming SE this afternoon. Seas around 2 ft. Wave Detail: S 1 foot at 3 seconds and N 1 foot at 5 seconds. .TONIGHT...E winds 10 to 15 kt, increasing to 15 to 20 kt with gusts up to 25 kt after midnight. Seas 2 to 4 ft. Wave Detail: E 3 ft at 4 seconds and SE 2 ft at 9 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 4 to 6 ft, building to 6 to 9 ft in the afternoon. Wave Detail: E 5 ft at 6 seconds and SE 3 ft at 9 seconds, becoming SE 8 ft at 9 seconds and E 6 ft at 6 seconds. A chance of rain in the afternoon with vsby 1 to 3 NM. .SUN NIGHT...NE winds 25 to 35 kt with gusts up to 45 kt. Seas 8 to 11 ft, building to 10 to 14 ft after midnight. S and E of Nantucket, seas 12 to 16 ft. Wave Detail: SE 11 ft at 13 seconds and NE 7 ft at 7 seconds, becoming SE 14 ft at 12 seconds and NE 7 ft at 7 seconds. Rain. Vsby 1 to 3 NM. .MON...E winds 25 to 30 kt with gusts up to 40 kt. Seas 12 to 16 ft. Wave Detail: E 16 ft at 12 seconds and NE 3 ft at 6 seconds. Rain. Vsby 1 to 3 NM. .MON NIGHT...E winds 25 to 30 kt with gusts up to 35 kt. Seas 12 to 16 ft. Wave Detail: E 15 ft at 11 seconds and NE 3 ft at 5 seconds. Rain. Vsby 1 to 3 NM. .TUE AND TUE NIGHT...NE winds 20 to 25 kt with gusts up to 30 kt. Seas 9 to 13 ft. Rain. Vsby 1 to 3 NM. .WED...N winds 15 to 20 kt with gusts up to 25 kt. Seas 7 to 10 ft. A chance of showers. .WED NIGHT...N winds 15 to 20 kt with gusts up to 25 kt. Seas 5 to 8 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. $$ ANZ255-120000- Coastal Waters extending out to 25 nm South of Marthas Vineyard and Nantucket- 704 AM EDT Sat Oct 11 2025 ...STORM WATCH IN EFFECT FROM SUNDAY AFTERNOON THROUGH MONDAY EVENING... .TODAY...SE winds 5 to 10 kt, becoming E 10 to 15 kt this afternoon. Seas 2 to 3 ft. Wave Detail: E 2 ft at 5 seconds and SE 1 foot at 9 seconds. .TONIGHT...E winds 15 to 20 kt, increasing to 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 9 seconds, becoming E 5 ft at 6 seconds and SE 3 ft at 9 seconds. .SUN...NE winds 25 to 30 kt. Gusts up to 45 kt in the afternoon. Seas 5 to 8 ft, building to 8 to 11 ft in the afternoon. Wave Detail: E 7 ft at 6 seconds and SE 5 ft at 9 seconds, becoming SE 9 ft at 13 seconds and E 8 ft at 7 seconds. A chance of rain in the morning, then rain in the afternoon with vsby 1 to 3 NM. .SUN NIGHT...NE winds 30 to 40 kt with gusts up to 45 kt. Seas 9 to 13 ft, building to 11 to 15 ft after midnight. Wave Detail: SE 11 ft at 13 seconds and E 10 ft at 7 seconds, becoming E 15 ft at 12 seconds and NE 10 ft at 8 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 15 ft at 12 seconds and NE 4 ft at 6 seconds. Rain. Vsby 1 to 3 NM. .MON NIGHT...E winds 30 to 35 kt, becoming NE 25 to 30 kt after midnight. Seas 11 to 15 ft, subsiding to 9 to 13 ft after midnight. Wave Detail: E 14 ft at 11 seconds and NE 4 ft at 6 seconds, becoming E 13 ft at 11 seconds and NE 4 ft at 6 seconds. Rain. Vsby 1 to 3 NM. .TUE...NE winds 25 to 30 kt with gusts up to 35 kt. Seas 8 to 11 ft. Rain. Vsby 1 to 3 NM. .TUE NIGHT...N winds 25 to 30 kt with gusts up to 35 kt. Seas 6 to 9 ft. Rain likely. .WED...N winds 20 to 25 kt. Seas 6 to 9 ft. A chance of showers. .WED NIGHT...N winds 20 to 25 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. $$ ANZ256-120000- Coastal Waters from Montauk NY to Marthas Vineyard extending out to 20 nm South of Block Island- 704 AM EDT Sat Oct 11 2025 ...STORM WATCH IN EFFECT FROM SUNDAY AFTERNOON THROUGH MONDAY EVENING... .TODAY...SE winds 5 to 10 kt, becoming E 10 to 15 kt with gusts up to 20 kt this afternoon. Seas 2 to 3 ft. Wave Detail: E 3 ft at 5 seconds and SE 2 ft at 9 seconds. .TONIGHT...E winds 15 to 20 kt, increasing to 20 to 25 kt with gusts up to 30 kt after midnight. Seas 3 to 5 ft, building to 5 to 7 ft after midnight. Wave Detail: SE 4 ft at 5 seconds and SE 4 ft at 8 seconds, becoming SE 6 ft at 7 seconds and SE 1 foot at 15 seconds. .SUN...E winds 25 to 30 kt, becoming NE 30 to 35 kt in the afternoon. Gusts up to 45 kt. Seas 7 to 10 ft, building to 9 to 12 ft in the afternoon. Wave Detail: E 8 ft at 7 seconds and SE 6 ft at 9 seconds, becoming SE 10 ft at 12 seconds and E 9 ft at 7 seconds. A chance of rain in the morning, then rain in the afternoon with vsby 1 to 3 NM. .SUN NIGHT...NE winds 35 to 40 kt with gusts up to 50 kt. Seas 12 to 17 ft. Wave Detail: E 17 ft at 12 seconds and NE 10 ft at 7 seconds. Rain. Vsby 1 to 3 NM. .MON...NE winds 35 to 40 kt with gusts up to 50 kt. Seas 14 to 17 ft. Wave Detail: E 17 ft at 12 seconds and NE 4 ft at 6 seconds. Rain. Vsby 1 to 3 NM. .MON NIGHT...NE winds 30 to 35 kt with gusts up to 40 kt. Seas 13 to 16 ft, subsiding to 11 to 15 ft after midnight. Wave Detail: E 16 ft at 12 seconds and NE 4 ft at 6 seconds, becoming E 15 ft at 11 seconds and NE 5 ft at 6 seconds. Rain. Vsby 1 to 3 NM. .TUE...NE winds around 30 kt with gusts up to 40 kt. Seas 9 to 13 ft. Rain. .TUE NIGHT...N winds 25 to 30 kt with gusts up to 35 kt. Seas 7 to 10 ft. Rain likely. .WED AND WED NIGHT...N winds 15 to 20 kt, increasing to 20 to 25 kt. Seas 5 to 8 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. $$ ANZ232-120000- Nantucket Sound- 704 AM EDT Sat Oct 11 2025 ...STORM WATCH IN EFFECT FROM SUNDAY AFTERNOON THROUGH MONDAY EVENING... .TODAY...S winds 5 to 10 kt, becoming E 10 to 15 kt this afternoon. Seas 1 foot or less, then around 2 ft this afternoon. Wave Detail: NW 1 foot at 4 seconds and SE 1 foot at 4 seconds, becoming NW 1 foot at 3 seconds and E 1 foot at 4 seconds. .TONIGHT...E winds 10 to 15 kt, increasing to 20 to 25 kt after midnight. Seas 2 to 4 ft. Wave Detail: E 3 ft at 4 seconds and SE 1 foot at 10 seconds. .SUN...E winds 20 to 25 kt with gusts up to 30 kt, becoming NE 25 to 30 kt with gusts up to 40 kt in the afternoon. Seas 4 to 6 ft. Wave Detail: E 6 ft at 6 seconds and SE 4 ft at 11 seconds. A chance of rain in the afternoon with vsby 1 to 3 NM. .SUN NIGHT...NE winds 30 to 40 kt with gusts up to 45 kt. Seas 5 to 7 ft, building to 6 to 9 ft after midnight. Wave Detail: E 7 ft at 6 seconds and SE 7 ft at 11 seconds, becoming E 7 ft at 6 seconds and SE 6 ft at 11 seconds. Rain. Vsby 1 to 3 NM. .MON AND MON NIGHT...NE winds 25 to 35 kt with gusts up to 45 kt. Seas 6 to 9 ft. Wave Detail: E 7 ft at 6 seconds and E 7 ft at 11 seconds. Rain. Vsby 1 to 3 NM. .TUE...NE winds 25 to 30 kt. Seas 5 to 7 ft. Wave Detail: NE 5 ft at 5 seconds and E 5 ft at 11 seconds. Rain. Vsby 1 to 3 NM. .TUE NIGHT...N winds 25 to 30 kt with gusts up to 35 kt. Seas 4 to 6 ft. Rain likely. .WED AND WED NIGHT...N winds 15 to 20 kt, increasing to 20 to 25 kt. Seas 3 to 5 ft. A chance of showers. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ233-120000- Vineyard Sound- 704 AM EDT Sat Oct 11 2025 ...STORM WATCH IN EFFECT FROM SUNDAY AFTERNOON THROUGH MONDAY EVENING... .TODAY...SE winds 5 to 10 kt, increasing to 10 to 15 kt this afternoon. Seas 1 foot or less, then around 2 ft this afternoon. Wave Detail: S 1 foot at 3 seconds and E 1 foot at 5 seconds, becoming E 1 foot at 4 seconds and SE 1 foot at 9 seconds. .TONIGHT...E winds 10 to 15 kt, increasing to 15 to 20 kt after midnight. Gusts up to 25 kt. Seas 2 to 4 ft. Wave Detail: SE 3 ft at 7 seconds and E 2 ft at 4 seconds. .SUN...E winds 20 to 25 kt, becoming NE 25 to 30 kt in the afternoon. Gusts up to 40 kt. Seas 4 to 6 ft. Wave Detail: SE 6 ft at 13 seconds and NE 4 ft at 5 seconds. A chance of rain in the morning, then rain likely in the afternoon with vsby 1 to 3 NM. .SUN NIGHT...NE winds 25 to 30 kt, increasing to 30 to 35 kt after midnight. 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 around 30 kt with gusts up to 40 kt. Seas 6 to 9 ft. Wave Detail: SE 7 ft at 12 seconds and NE 5 ft at 5 seconds. Rain. 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 4 ft at 5 seconds and SE 4 ft at 11 seconds. Rain. Vsby 1 to 3 NM. .TUE...NE winds around 25 kt with gusts up to 35 kt. Seas 4 to 6 ft. Rain. Vsby 1 to 3 NM. .TUE NIGHT...N winds 20 to 25 kt with gusts up to 30 kt. Seas 3 to 5 ft. Rain likely. .WED AND WED NIGHT...N winds 10 to 15 kt, increasing to 15 to 20 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. $$ ANZ234-120000- Buzzards Bay- 704 AM EDT Sat Oct 11 2025 ...STORM WATCH IN EFFECT FROM SUNDAY AFTERNOON THROUGH MONDAY EVENING... .TODAY...SE winds 5 to 10 kt. Seas 1 foot or less, then around 2 ft this afternoon. Wave Detail: S 1 foot at 3 seconds and E 1 foot at 5 seconds, becoming E 1 foot at 4 seconds and SE 1 foot at 9 seconds. .TONIGHT...E winds 10 to 15 kt, increasing to 15 to 20 kt with gusts up to 25 kt after midnight. Seas 2 to 4 ft. Wave Detail: E 2 ft at 4 seconds and SE 2 ft at 8 seconds. .SUN...NE winds 20 to 25 kt, increasing to 25 to 30 kt in the afternoon. Gusts up to 40 kt. Seas 4 to 6 ft. Wave Detail: SE 5 ft at 11 seconds and E 4 ft at 5 seconds. Rain likely in the afternoon with vsby 1 to 3 NM. .SUN NIGHT...NE winds 25 to 30 kt with gusts up to 45 kt. Seas 4 to 6 ft. Wave Detail: SE 6 ft at 12 seconds and NE 5 ft at 5 seconds. Rain. Vsby 1 to 3 NM. .MON...NE winds around 30 kt with gusts up to 40 kt. Seas 4 to 6 ft. Wave Detail: SE 6 ft at 11 seconds and NE 5 ft at 5 seconds. Rain. Vsby 1 to 3 NM. .MON NIGHT...NE winds 25 to 30 kt. Gusts up to 40 kt in the evening. Seas 4 to 6 ft. Wave Detail: NE 5 ft at 5 seconds and SE 5 ft at 11 seconds. Rain. Vsby 1 to 3 NM. .TUE AND TUE NIGHT...NE winds 25 to 30 kt, becoming N 20 to 25 kt. Seas 3 to 5 ft. Rain. .WED...N winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. .WED NIGHT...N winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 3 ft. A chance of showers. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ235-120000- Rhode Island Sound- 704 AM EDT Sat Oct 11 2025 ...STORM WATCH IN EFFECT FROM SUNDAY AFTERNOON THROUGH MONDAY EVENING... .TODAY...SE winds 5 to 10 kt, becoming E 10 to 15 kt this afternoon. Seas around 2 ft. Wave Detail: SE 2 ft at 5 seconds and SE 1 foot at 8 seconds. .TONIGHT...E winds 10 to 15 kt, increasing to 20 to 25 kt after midnight. Seas 3 to 5 ft. Wave Detail: SE 5 ft at 6 seconds and SE 1 foot at 16 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 5 ft at 5 seconds, becoming SE 9 ft at 13 seconds and NE 5 ft at 5 seconds. A chance of rain in the morning, then rain likely in the afternoon with vsby 1 to 3 NM. .SUN NIGHT...NE winds 30 to 35 kt with gusts up to 45 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 45 kt. Seas 9 to 12 ft. Wave Detail: SE 12 ft at 12 seconds and NE 7 ft at 6 seconds. Rain. Vsby 1 to 3 NM. .MON NIGHT...NE winds 25 to 30 kt. Gusts up to 40 kt in the evening. Seas 8 to 11 ft. Wave Detail: SE 11 ft at 12 seconds and NE 6 ft at 6 seconds. Rain. Vsby 1 to 3 NM. .TUE...NE winds 25 to 30 kt with gusts up to 35 kt. Seas 6 to 9 ft. Rain. .TUE NIGHT...N winds 20 to 25 kt with gusts up to 30 kt. Seas 5 to 7 ft. Rain likely. .WED...N winds 15 to 20 kt. Seas 3 to 5 ft. .WED NIGHT...N 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. $$ ANZ237-120000- Block Island Sound- 704 AM EDT Sat Oct 11 2025 ...STORM WATCH IN EFFECT FROM SUNDAY AFTERNOON THROUGH MONDAY EVENING... .TODAY...SE winds 5 to 10 kt, becoming E 10 to 15 kt with gusts up to 20 kt this afternoon. Seas 2 to 3 ft. Wave Detail: SE 2 ft at 5 seconds and SE 1 foot at 9 seconds. .TONIGHT...E winds 15 to 20 kt, increasing to 20 to 25 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 9 seconds, becoming SE 5 ft at 6 seconds and SE 1 foot at 15 seconds. .SUN...NE winds 25 to 30 kt with gusts up to 45 kt. Seas 5 to 7 ft, building to 6 to 9 ft in the afternoon. Wave Detail: E 7 ft at 7 seconds and SE 1 foot at 15 seconds, becoming SE 9 ft at 9 seconds and E 5 ft at 6 seconds. A chance of rain in the morning, then rain likely in the afternoon with vsby 1 to 3 NM. .SUN NIGHT...NE winds 30 to 35 kt with gusts up to 45 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 13 seconds and NE 6 ft at 6 seconds. Rain. Vsby 1 to 3 NM. .MON...NE winds 30 to 35 kt, diminishing to 25 to 30 kt in the afternoon. 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. Vsby 1 to 3 NM. .MON NIGHT...NE winds 25 to 30 kt. Gusts up to 40 kt in the evening. Seas 9 to 13 ft, subsiding to 8 to 11 ft after midnight. Wave Detail: SE 13 ft at 12 seconds and NE 4 ft at 6 seconds, becoming E 11 ft at 11 seconds and NE 4 ft at 6 seconds. Rain. Vsby 1 to 3 NM. .TUE...NE winds 25 to 30 kt with gusts up to 35 kt. Seas 7 to 10 ft. Rain. .TUE NIGHT...N winds 20 to 25 kt with gusts up to 30 kt. Seas 5 to 7 ft. A chance of rain. .WED...N winds 10 to 15 kt with gusts up to 20 kt. Seas 4 to 6 ft. .WED NIGHT...N 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. $$ ANZ230-120000- Boston Harbor- 704 AM EDT Sat Oct 11 2025 ...GALE WATCH IN EFFECT FROM SUNDAY AFTERNOON THROUGH MONDAY EVENING... .TODAY...SW winds around 5 kt, becoming SE this afternoon. Waves 1 foot or less. .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 with gusts up to 25 kt, becoming NE 20 to 25 kt with gusts up to 35 kt in the afternoon. Waves 2 to 3 ft. A chance of rain in the afternoon. .SUN NIGHT...NE winds 20 to 25 kt, increasing to 25 to 30 kt after midnight. 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 around 25 kt with gusts up to 40 kt. Waves 2 to 3 ft, except 5 to 7 ft at the outer harbor entrance. Rain. Vsby 1 to 3 NM. .MON NIGHT...NE winds 20 to 25 kt with gusts up to 35 kt. Waves 2 to 3 ft, except 5 to 7 ft at the outer harbor entrance. Rain. Vsby 1 to 3 NM. .TUE...NE winds 15 to 20 kt with gusts up to 30 kt. Waves 2 to 3 ft, except 4 to 6 ft at the outer harbor entrance. Rain. .TUE NIGHT...N winds 15 to 20 kt. Waves around 2 ft, except 3 to 5 ft at the outer harbor entrance. A chance of rain. .WED...N winds 10 to 15 kt. Waves around 2 ft. .WED NIGHT...NW 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. $$ ANZ236-120000- Narragansett Bay- 704 AM EDT Sat Oct 11 2025 ...GALE WATCH IN EFFECT FROM SUNDAY AFTERNOON THROUGH MONDAY EVENING... .TODAY...SE winds 5 to 10 kt. Waves 1 foot or less, then around 2 ft this afternoon. .TONIGHT...E winds 10 to 15 kt. Gusts up to 20 kt after midnight. Waves 2 to 3 ft. .SUN...NE winds 15 to 20 kt with gusts up to 30 kt, increasing to 20 to 25 kt with gusts up to 40 kt in the afternoon. Waves 2 to 3 ft, except 4 to 6 ft at the bay entrance. Rain likely in the afternoon with vsby 1 to 3 NM. .SUN NIGHT...NE winds 20 to 25 kt with gusts up to 40 kt. Waves around 3 ft, except 5 to 7 ft at the bay entrance. Rain. Vsby 1 to 3 NM. .MON...NE winds 20 to 25 kt with gusts up to 40 kt. Waves around 3 ft, except 5 to 7 ft at the bay entrance. Rain. Vsby 1 to 3 NM. .MON NIGHT...NE winds 20 to 25 kt. Gusts up to 35 kt in the evening. Waves around 3 ft, except 5 to 7 ft at the bay entrance. Rain. Vsby 1 to 3 NM. .TUE...N winds 20 to 25 kt with gusts up to 30 kt. Waves around 3 ft, except 4 to 6 ft at the bay entrance. Rain. .TUE NIGHT...N winds 15 to 20 kt with gusts up to 25 kt. Waves 2 to 3 ft. A chance of rain. .WED...N winds around 10 kt. Waves 2 to 3 ft. .WED NIGHT...N winds 10 to 15 kt with gusts up to 20 kt. Waves around 2 ft. A chance of showers. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ 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