Coastal Waters Forecast
Issued by NWS Boston, MA
Issued by NWS Boston, MA
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659 FZUS51 KBOX 252104 CWFBOX Coastal Waters Forecast for Massachusetts and Rhode Island National Weather Service Boston/Norton MA 403 PM EST Tue Nov 25 2025 Coastal waters from the Merrimack River MA to Watch Hill RI out to 25 NM ANZ200-261000- 403 PM EST Tue Nov 25 2025 .Synopsis for Massachusetts and Rhode Island coastal waters... A warm front lifts north across the region tonight followed by a strong cold front Wed night. Gusty post frontal westerly winds develop Thu into Sat morning, which may gust to Gale force as strong low pres moves into the Maritimes. High pres builds into the waters Sat night and moves offshore Sun. A cold front moves across the waters Sun night into Mon. $$ ANZ250-261000- Coastal waters east of Ipswich Bay and the Stellwagen Bank National Marine Sanctuary- 403 PM EST Tue Nov 25 2025 ...GALE WATCH IN EFFECT FROM THURSDAY AFTERNOON THROUGH SATURDAY MORNING... .TONIGHT...S winds 10 to 15 kt, increasing to 15 to 20 kt after midnight. Gusts up to 25 kt. Seas 2 to 4 ft. Wave Detail: SE 4 ft at 4 seconds and E 1 foot at 9 seconds. Patchy fog. Rain. Vsby 1 to 3 NM after midnight. .WED...S winds 15 to 20 kt, diminishing to 10 to 15 kt in the afternoon. Gusts up to 25 kt. Seas 2 to 4 ft. Wave Detail: S 4 ft at 5 seconds and SE 3 ft at 9 seconds. Patchy fog. A chance of rain. Vsby 1 NM or less, increasing to 1 to 3 NM in the afternoon. .WED NIGHT...SW winds 10 to 15 kt, increasing to 15 to 20 kt after midnight. Gusts up to 25 kt. Seas 2 to 4 ft. Wave Detail: SW 3 ft at 4 seconds and SE 3 ft at 8 seconds. Patchy fog. A chance of rain. Vsby 1 NM or less, increasing to 1 to 3 NM after midnight. .THU...W winds 20 to 25 kt with gusts up to 30 kt. Seas 3 to 5 ft. Wave Detail: W 5 ft at 5 seconds and SE 3 ft at 8 seconds. .THU NIGHT...W winds 20 to 25 kt with gusts up to 35 kt. Seas 4 to 6 ft. Wave Detail: W 6 ft at 5 seconds and SE 2 ft at 9 seconds. .FRI AND FRI NIGHT...W winds 25 to 30 kt with gusts up to 35 kt. Seas 5 to 7 ft. Wave Detail: W 6 ft at 5 seconds and SE 1 foot at 9 seconds. .SAT...NW winds 20 to 25 kt with gusts up to 30 kt. Seas 4 to 6 ft. .SAT NIGHT...W winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. .SUN...S winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 3 ft. A chance of rain. .SUN NIGHT...S winds 15 to 20 kt with gusts up to 25 kt. Seas 4 to 6 ft. Rain likely. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ251-261000- Massachusetts Bay and Ipswich Bay- 403 PM EST Tue Nov 25 2025 ...GALE WATCH IN EFFECT FROM THURSDAY AFTERNOON THROUGH SATURDAY MORNING... .TONIGHT...S winds 10 to 15 kt, increasing to 15 to 20 kt after midnight. Seas 2 to 3 ft. Wave Detail: SE 3 ft at 4 seconds and E 1 foot at 9 seconds. Patchy fog. Rain. Vsby 1 to 3 NM after midnight. .WED...S winds 10 to 15 kt. Gusts up to 20 kt in the morning. Seas 2 to 3 ft. Wave Detail: SE 3 ft at 5 seconds and E 1 foot at 9 seconds. Patchy fog. A chance of rain. Vsby 1 NM or less, increasing to 1 to 3 NM in the afternoon. .WED NIGHT...SW winds 10 to 15 kt, increasing to 15 to 20 kt with gusts up to 25 kt after midnight. Seas 2 to 3 ft. Wave Detail: SW 3 ft at 3 seconds and SE 2 ft at 9 seconds. A chance of rain. Patchy fog in the evening. Vsby 1 NM or less, increasing to 1 to 3 NM after midnight. .THU...W winds 15 to 20 kt with gusts up to 30 kt. Seas around 3 ft. Wave Detail: W 3 ft at 4 seconds and SE 1 foot at 9 seconds. .THU NIGHT THROUGH FRI NIGHT...W winds 20 to 25 kt with gusts up to 30 kt. Seas 3 to 4 ft. Wave Detail: SW 4 ft at 4 seconds and SW 2 ft at 10 seconds. .SAT AND SAT NIGHT...NW winds 20 to 25 kt with gusts up to 30 kt, becoming W 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: NW 3 ft at 5 seconds. .SUN...S winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. A chance of rain. .SUN NIGHT...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to 5 ft. Rain 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. $$ ANZ231-261000- Cape Cod Bay- 403 PM EST Tue Nov 25 2025 ...GALE WATCH IN EFFECT FROM THURSDAY AFTERNOON THROUGH SATURDAY MORNING... .TONIGHT...S winds 10 to 15 kt, increasing to 15 to 20 kt after midnight. Seas 2 to 3 ft. Wave Detail: S 2 ft at 3 seconds and NE 1 foot at 4 seconds. Patchy fog. Rain. Vsby 1 to 3 NM after midnight. .WED...S winds 15 to 20 kt, diminishing to 10 to 15 kt in the afternoon. Seas 2 to 3 ft. Wave Detail: S 2 ft at 4 seconds and SE 2 ft at 9 seconds. Patchy fog. A chance of rain. Vsby 1 NM or less, increasing to 1 to 3 NM in the afternoon. .WED NIGHT...SW winds 10 to 15 kt, increasing to 15 to 20 kt after midnight. Gusts up to 25 kt. Seas 2 to 3 ft. Wave Detail: SW 2 ft at 3 seconds and SE 2 ft at 8 seconds. Patchy fog. A chance of rain in the evening. Vsby 1 to 3 NM. .THU...W winds 15 to 20 kt with gusts up to 30 kt. Seas 3 to 4 ft. Wave Detail: W 3 ft at 4 seconds and S 2 ft at 8 seconds. .THU NIGHT THROUGH FRI NIGHT...W winds 25 to 30 kt with gusts up to 35 kt. Seas 3 to 5 ft. Wave Detail: W 5 ft at 5 seconds and S 2 ft at 9 seconds. .SAT...NW winds 20 to 25 kt with gusts up to 30 kt. Seas 2 to 4 ft. Wave Detail: N 4 ft at 5 seconds and S 1 foot at 9 seconds. .SAT NIGHT...W winds 5 to 10 kt. Seas around 2 ft. .SUN...S winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 3 ft. A chance of rain. .SUN NIGHT...S winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to 4 ft. Rain likely. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ254-261000- Coastal waters from Provincetown MA to Chatham MA to Nantucket MA out 20 nm- 403 PM EST Tue Nov 25 2025 ...SMALL CRAFT ADVISORY IN EFFECT FROM 1 AM EST WEDNESDAY THROUGH LATE WEDNESDAY NIGHT... ...GALE WATCH IN EFFECT FROM THURSDAY AFTERNOON THROUGH SATURDAY MORNING... .TONIGHT...S 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: S 3 ft at 4 seconds and N 1 foot at 5 seconds. A chance of rain this evening, then rain likely after midnight. Patchy fog after midnight with vsby 1 to 3 NM. .WED...S winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to 5 ft. Wave Detail: S 5 ft at 5 seconds and SE 3 ft at 9 seconds. Patchy fog. Rain likely in the morning. A chance of rain in the afternoon. Vsby 1 NM or less. .WED NIGHT...SW winds 15 to 20 kt, increasing to 20 to 25 kt with gusts up to 30 kt after midnight. Seas 4 to 6 ft. Wave Detail: S 5 ft at 7 seconds. Patchy fog. A chance of rain in the evening. Vsby 1 NM or less, increasing to 1 to 3 NM after midnight. .THU...W winds 20 to 25 kt with gusts up to 35 kt. Seas 5 to 7 ft. Wave Detail: S 6 ft at 8 seconds and W 4 ft at 5 seconds. .THU NIGHT AND FRI...W winds 25 to 30 kt with gusts up to 35 kt. Seas 5 to 8 ft, except 9 to 12 ft S and E of Nantucket. Wave Detail: W 6 ft at 5 seconds and S 5 ft at 9 seconds. .FRI NIGHT...W winds 25 to 30 kt with gusts up to 40 kt. Seas 6 to 9 ft, except 9 to 13 ft S and E of Nantucket. Wave Detail: W 6 ft at 6 seconds and S 3 ft at 9 seconds. .SAT...NW winds 20 to 25 kt with gusts up to 30 kt. Seas 5 to 7 ft. .SAT NIGHT...W winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. .SUN...S winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. A chance of rain. .SUN NIGHT...S winds 15 to 20 kt with gusts up to 25 kt. Seas 4 to 6 ft. A chance of rain. 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. $$ ANZ255-261000- Coastal Waters extending out to 25 nm South of Marthas Vineyard and Nantucket- 403 PM EST Tue Nov 25 2025 ...SMALL CRAFT ADVISORY IN EFFECT FROM 1 AM EST WEDNESDAY THROUGH LATE WEDNESDAY NIGHT... ...GALE WATCH IN EFFECT FROM THURSDAY AFTERNOON THROUGH SATURDAY MORNING... .TONIGHT...S winds 10 to 15 kt, increasing to 20 to 25 kt after midnight. Seas 2 to 3 ft, building to 4 to 6 ft after midnight. Wave Detail: SW 3 ft at 5 seconds and E 1 foot at 9 seconds, becoming S 5 ft at 5 seconds and E 1 foot at 9 seconds. A chance of rain this evening, then rain likely after midnight. Patchy fog after midnight with vsby 1 to 3 NM. .WED...SW winds 20 to 25 kt. Seas 4 to 6 ft. Wave Detail: SW 6 ft at 7 seconds and SE 2 ft at 9 seconds. Patchy fog. Rain in the morning. A chance of rain in the afternoon. Vsby 1 NM or less. .WED NIGHT...SW winds 20 to 25 kt, becoming W 25 to 30 kt after midnight. Seas 5 to 8 ft. Wave Detail: SW 8 ft at 8 seconds and SW 7 ft at 7 seconds. Patchy fog. A chance of rain in the evening. Vsby 1 NM or less, increasing to 1 to 3 NM after midnight. .THU...W winds 25 to 30 kt with gusts up to 35 kt. Seas 7 to 10 ft. Wave Detail: SW 10 ft at 8 seconds. .THU NIGHT THROUGH FRI NIGHT...NW winds 30 to 40 kt. Seas 9 to 13 ft. Wave Detail: SW 12 ft at 8 seconds and W 10 ft at 7 seconds. .SAT...NW winds 25 to 30 kt with gusts up to 35 kt. Seas 5 to 8 ft. Wave Detail: W 8 ft at 8 seconds and SW 6 ft at 10 seconds. .SAT NIGHT...NW winds 10 to 15 kt. Seas 2 to 4 ft. .SUN...S winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 3 ft. A chance of rain. .SUN NIGHT...S winds 20 to 25 kt. Seas 4 to 6 ft. A chance of rain. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ256-261000- Coastal Waters from Montauk NY to Marthas Vineyard extending out to 20 nm South of Block Island- 403 PM EST Tue Nov 25 2025 ...SMALL CRAFT ADVISORY IN EFFECT FROM 1 AM EST WEDNESDAY THROUGH LATE WEDNESDAY NIGHT... ...GALE WATCH IN EFFECT FROM THURSDAY AFTERNOON THROUGH SATURDAY MORNING... .TONIGHT...S winds 15 to 20 kt, increasing to 20 to 25 kt with gusts up to 30 kt after midnight. Seas around 3 ft, building to 4 to 6 ft after midnight. Wave Detail: S 3 ft at 5 seconds and SE 1 foot at 9 seconds, becoming S 6 ft at 6 seconds and SE 1 foot at 9 seconds. A chance of rain this evening, then rain likely after midnight. Patchy fog after midnight with vsby 1 to 3 NM. .WED...SW winds 20 to 25 kt, diminishing to 15 to 20 kt in the afternoon. Seas 5 to 7 ft. Wave Detail: SW 6 ft at 7 seconds and E 1 foot at 9 seconds. Patchy fog. Rain likely in the morning. A chance of rain in the afternoon. Vsby 1 NM or less. .WED NIGHT...SW winds 20 to 25 kt, becoming W 25 to 30 kt after midnight. Seas 5 to 6 ft, building to 6 to 8 ft after midnight. Wave Detail: SW 6 ft at 8 seconds, becoming SW 8 ft at 7 seconds. Patchy fog in the evening. A chance of rain in the evening with vsby 1 to 3 NM. .THU...W winds 25 to 30 kt with gusts up to 35 kt. Seas 7 to 9 ft. Wave Detail: W 9 ft at 7 seconds. .THU NIGHT...W winds 25 to 30 kt with gusts up to 40 kt. Seas 7 to 10 ft. Wave Detail: W 10 ft at 7 seconds. .FRI AND FRI NIGHT...NW winds 25 to 35 kt with gusts up to 40 kt. Seas 8 to 11 ft. Wave Detail: SW 11 ft at 8 seconds and NW 8 ft at 7 seconds. .SAT...NW winds 25 to 30 kt with gusts up to 35 kt. Seas 5 to 7 ft. .SAT NIGHT...W winds 10 to 15 kt. Seas 2 to 4 ft. .SUN...S winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 3 ft. A chance of rain. .SUN NIGHT...SW winds 20 to 25 kt. Seas 4 to 6 ft. A chance of rain. 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. $$ ANZ232-261000- Nantucket Sound- 403 PM EST Tue Nov 25 2025 ...SMALL CRAFT ADVISORY IN EFFECT FROM 1 AM EST WEDNESDAY THROUGH LATE WEDNESDAY NIGHT... ...GALE WATCH IN EFFECT FROM THURSDAY AFTERNOON THROUGH SATURDAY MORNING... .TONIGHT...S winds 10 to 15 kt, increasing to 15 to 20 kt with gusts up to 25 kt after midnight. Seas 2 to 4 ft. Wave Detail: S 3 ft at 4 seconds and NE 1 foot at 5 seconds. A chance of rain this evening, then rain after midnight. Patchy fog after midnight with vsby 1 to 3 NM. .WED...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 4 ft. Wave Detail: S 4 ft at 5 seconds and E 1 foot at 9 seconds. Areas of fog in the morning, then patchy fog in the afternoon. Rain, mainly in the morning. Vsby 1 NM or less. .WED NIGHT...SW winds 15 to 20 kt, increasing to 20 to 25 kt with gusts up to 30 kt after midnight. Seas 3 to 5 ft. Wave Detail: S 4 ft at 6 seconds. Patchy fog. A chance of rain in the evening. Vsby 1 NM or less, increasing to 1 to 3 NM after midnight. .THU...W winds 20 to 25 kt, increasing to 25 to 30 kt in the afternoon. Seas 4 to 6 ft. Wave Detail: W 5 ft at 5 seconds and S 3 ft at 8 seconds. .THU NIGHT...W winds 25 to 30 kt with gusts up to 35 kt. Seas 4 to 6 ft. Wave Detail: W 5 ft at 5 seconds and SW 3 ft at 9 seconds. .FRI AND FRI NIGHT...W winds 25 to 35 kt. Seas 5 to 7 ft. Wave Detail: W 6 ft at 5 seconds and SW 3 ft at 9 seconds. .SAT...NW winds 25 to 30 kt. Seas 3 to 5 ft. .SAT NIGHT...W winds 10 to 15 kt. Seas 2 to 3 ft. .SUN...S winds 15 to 20 kt. Seas 2 to 3 ft. A chance of rain. .SUN NIGHT...S winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to 5 ft. A chance of rain. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ233-261000- Vineyard Sound- 403 PM EST Tue Nov 25 2025 ...SMALL CRAFT ADVISORY IN EFFECT FROM 1 AM EST WEDNESDAY THROUGH LATE WEDNESDAY NIGHT... ...GALE WATCH IN EFFECT FROM THURSDAY AFTERNOON THROUGH SATURDAY MORNING... .TONIGHT...S 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: S 4 ft at 5 seconds and SE 1 foot at 9 seconds. Patchy fog. Rain. Vsby 1 to 3 NM after midnight. .WED...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to 5 ft. Wave Detail: SW 4 ft at 6 seconds and E 1 foot at 9 seconds. Patchy fog. Rain likely in the morning. A chance of rain in the afternoon. Vsby 1 NM or less. .WED NIGHT...SW winds 15 to 20 kt, becoming W 20 to 25 kt with gusts up to 30 kt after midnight. Seas 3 to 4 ft, building to 4 to 6 ft after midnight. Wave Detail: S 4 ft at 7 seconds, becoming SW 6 ft at 8 seconds and SW 4 ft at 5 seconds. Patchy fog. A chance of rain in the evening. Vsby 1 to 3 NM. .THU...W winds 20 to 25 kt, increasing to 25 to 30 kt in the afternoon. Seas 4 to 6 ft. Wave Detail: SW 6 ft at 7 seconds. .THU NIGHT THROUGH FRI NIGHT...W winds 25 to 30 kt with gusts up to 35 kt. Seas 5 to 7 ft. Wave Detail: SW 7 ft at 8 seconds and W 4 ft at 5 seconds. .SAT...NW winds 20 to 25 kt with gusts up to 30 kt. Seas 3 to 5 ft. Wave Detail: W 5 ft at 6 seconds and SW 3 ft at 9 seconds. .SAT NIGHT...NW winds 5 to 10 kt. Seas around 2 ft. .SUN...S winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 3 ft. A chance of rain. .SUN NIGHT...SW winds 20 to 25 kt. Seas 3 to 5 ft. A chance of rain. 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. $$ ANZ234-261000- Buzzards Bay- 403 PM EST Tue Nov 25 2025 ...SMALL CRAFT ADVISORY IN EFFECT FROM 1 AM EST WEDNESDAY THROUGH LATE WEDNESDAY NIGHT... ...GALE WATCH IN EFFECT FROM THURSDAY AFTERNOON THROUGH SATURDAY MORNING... .TONIGHT...S winds 10 to 15 kt, increasing to 15 to 20 kt after midnight. Gusts up to 25 kt. Seas 2 to 4 ft. Wave Detail: S 4 ft at 5 seconds and SE 1 foot at 9 seconds. Patchy fog. Rain. Vsby 1 to 3 NM after midnight. .WED...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 4 ft. Wave Detail: S 4 ft at 5 seconds and E 1 foot at 9 seconds. Patchy fog. Rain likely in the morning. A chance of rain in the afternoon. Vsby 1 NM or less. .WED NIGHT...SW winds 15 to 20 kt, increasing to 20 to 25 kt with gusts up to 30 kt after midnight. Seas 2 to 4 ft. Wave Detail: SW 4 ft at 5 seconds and S 4 ft at 8 seconds. Patchy fog. A chance of rain in the evening. Vsby 1 NM or less, increasing to 1 to 3 NM after midnight. .THU...W winds 20 to 25 kt with gusts up to 35 kt. Seas 3 to 5 ft. Wave Detail: SW 5 ft at 8 seconds and SW 4 ft at 5 seconds. .THU NIGHT...W winds 20 to 25 kt, increasing to 25 to 30 kt after midnight. Seas 3 to 5 ft. Wave Detail: SW 5 ft at 8 seconds and W 4 ft at 5 seconds. .FRI...W winds 25 to 30 kt with gusts up to 35 kt. Seas 4 to 6 ft. Wave Detail: SW 6 ft at 8 seconds and W 4 ft at 5 seconds. .FRI NIGHT...W winds 25 to 30 kt, diminishing to 20 to 25 kt after midnight. Seas 3 to 5 ft. .SAT...NW winds 20 to 25 kt with gusts up to 30 kt. Seas 2 to 4 ft. .SAT NIGHT...W winds 5 to 10 kt. Seas around 2 ft. .SUN...S winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 3 ft. A chance of rain. .SUN NIGHT...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to 5 ft. A chance of rain. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ235-261000- Rhode Island Sound- 403 PM EST Tue Nov 25 2025 ...SMALL CRAFT ADVISORY IN EFFECT FROM 1 AM EST WEDNESDAY THROUGH LATE WEDNESDAY NIGHT... ...GALE WATCH IN EFFECT FROM THURSDAY AFTERNOON THROUGH SATURDAY MORNING... .TONIGHT...S winds around 15 kt, increasing to 20 to 25 kt after midnight. Seas 2 to 3 ft, building to 3 to 5 ft after midnight. Wave Detail: S 3 ft at 5 seconds and SE 1 foot at 8 seconds, becoming S 5 ft at 6 seconds and SE 1 foot at 9 seconds. Patchy fog. Rain. Vsby 1 to 3 NM after midnight. .WED...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to 5 ft. Wave Detail: S 5 ft at 7 seconds and S 3 ft at 9 seconds. Patchy fog. Rain likely, mainly in the morning. Vsby 1 NM or less, increasing to 1 to 3 NM in the afternoon. .WED NIGHT...SW winds 15 to 20 kt, becoming W 25 to 30 kt after midnight. Seas 3 to 5 ft, building to 5 to 7 ft after midnight. Wave Detail: S 5 ft at 8 seconds, becoming SW 7 ft at 6 seconds. Patchy fog. A chance of rain in the evening. Vsby 1 to 3 NM. .THU...W winds 25 to 30 kt with gusts up to 35 kt. Seas 5 to 7 ft. Wave Detail: SW 7 ft at 7 seconds. .THU NIGHT THROUGH FRI NIGHT...W winds 25 to 30 kt with gusts up to 40 kt. Seas 5 to 8 ft. Wave Detail: W 8 ft at 7 seconds. .SAT...NW winds 20 to 25 kt with gusts up to 30 kt. Seas 3 to 5 ft. Wave Detail: W 5 ft at 6 seconds and SW 3 ft at 9 seconds. .SAT NIGHT...NW winds 5 to 10 kt. Seas 2 to 3 ft. .SUN...S winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 3 ft. A chance of rain. .SUN NIGHT...SW winds 20 to 25 kt. Seas 4 to 6 ft. A chance of rain. 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. $$ ANZ237-261000- Block Island Sound- 403 PM EST Tue Nov 25 2025 ...SMALL CRAFT ADVISORY IN EFFECT FROM 1 AM EST WEDNESDAY THROUGH LATE WEDNESDAY NIGHT... ...GALE WATCH IN EFFECT FROM THURSDAY AFTERNOON THROUGH SATURDAY MORNING... .TONIGHT...S winds 10 to 15 kt, increasing to 15 to 20 kt after midnight. Gusts up to 25 kt. Seas 2 to 3 ft, building to 3 to 5 ft after midnight. Wave Detail: S 3 ft at 5 seconds and SE 1 foot at 9 seconds, becoming S 4 ft at 5 seconds and SE 1 foot at 9 seconds. Patchy fog. Rain. Vsby 1 NM or less after midnight. .WED...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to 5 ft. Wave Detail: SW 4 ft at 6 seconds and SE 3 ft at 9 seconds. Patchy fog. Rain likely, mainly in the morning. Vsby 1 NM or less, increasing to 1 to 3 NM in the afternoon. .WED NIGHT...SW winds 15 to 20 kt, becoming W 20 to 25 kt after midnight. Gusts up to 30 kt. Seas 4 to 6 ft. Wave Detail: W 5 ft at 5 seconds and S 5 ft at 8 seconds. Patchy fog in the evening. A chance of rain in the evening with vsby 1 to 3 NM. .THU...W winds 20 to 25 kt with gusts up to 35 kt. Seas 4 to 6 ft. Wave Detail: W 5 ft at 5 seconds and S 5 ft at 8 seconds. .THU NIGHT THROUGH FRI NIGHT...W winds 25 to 30 kt with gusts up to 35 kt. Seas 5 to 7 ft. Wave Detail: W 5 ft at 5 seconds and S 5 ft at 8 seconds. .SAT...NW winds 15 to 20 kt with gusts up to 30 kt. Seas 3 to 5 ft. Wave Detail: W 4 ft at 5 seconds and S 2 ft at 8 seconds. .SAT NIGHT...N winds 5 to 10 kt. Seas around 2 ft. .SUN...S winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 4 ft. A chance of rain. .SUN NIGHT...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 4 to 6 ft. A chance of rain. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ230-261000- Boston Harbor- 403 PM EST Tue Nov 25 2025 ...GALE WATCH IN EFFECT FROM THURSDAY EVENING THROUGH FRIDAY EVENING... .TONIGHT...S winds 10 to 15 kt. Gusts up to 20 kt after midnight. Waves around 2 ft. Patchy fog. Rain. Vsby 1 to 3 NM after midnight. .WED...S winds 10 to 15 kt. Gusts up to 20 kt in the morning. Waves around 2 ft. Patchy fog. A chance of rain. Vsby 1 NM or less in the morning. .WED NIGHT...SW winds 10 to 15 kt, increasing to 15 to 20 kt with gusts up to 25 kt after midnight. Waves around 2 ft. A chance of rain. .THU...W winds 15 to 20 kt with gusts up to 30 kt. Waves around 2 ft. .THU NIGHT THROUGH FRI NIGHT...W winds 20 to 25 kt with gusts up to 30 kt. Waves around 2 ft. .SAT AND SAT NIGHT...NW winds 15 to 20 kt with gusts up to 25 kt, becoming W 5 to 10 kt. Waves around 2 ft, then 1 foot or less. .SUN...S winds 10 to 15 kt with gusts up to 20 kt. Waves around 2 ft. A chance of rain. .SUN NIGHT...SW winds 15 to 20 kt. Waves around 2 ft, except 3 to 5 ft at the outer harbor entrance. Rain 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. $$ ANZ236-261000- Narragansett Bay- 403 PM EST Tue Nov 25 2025 ...GALE WATCH IN EFFECT FROM THURSDAY EVENING THROUGH FRIDAY EVENING... .TONIGHT...S winds 10 to 15 kt, increasing to 15 to 20 kt after midnight. Gusts up to 25 kt. Waves 2 to 3 ft. Patchy fog. Rain. Vsby 1 to 3 NM after midnight. .WED...S winds 15 to 20 kt, becoming SW 10 to 15 kt in the afternoon. Gusts up to 25 kt. Waves 2 to 3 ft. Patchy fog. A chance of rain. Vsby 1 NM or less, increasing to 1 to 3 NM in the afternoon. .WED NIGHT...SW winds 10 to 15 kt, becoming W 15 to 20 kt after midnight. Gusts up to 25 kt. Waves 2 to 4 ft. A chance of rain. Patchy fog in the evening with vsby 1 to 3 NM. .THU...W winds 15 to 20 kt with gusts up to 30 kt. Waves 2 to 4 ft. .THU NIGHT...W winds 15 to 20 kt with gusts up to 30 kt. Waves 2 to 4 ft. .FRI...W winds 20 to 25 kt with gusts up to 30 kt. Waves 3 to 5 ft. .FRI NIGHT...W winds 15 to 20 kt with gusts up to 30 kt. Waves 2 to 3 ft. .SAT AND SAT NIGHT...NW winds 15 to 20 kt with gusts up to 25 kt, diminishing to 5 to 10 kt. Waves 2 to 3 ft. .SUN AND SUN NIGHT...S winds 15 to 20 kt. Waves 2 to 4 ft. A chance of rain. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ 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