Coastal Waters Forecast
Issued by NWS Boston, MA
Issued by NWS Boston, MA
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161 FZUS51 KBOX 270605 CWFBOX Coastal Waters Forecast for Massachusetts and Rhode Island National Weather Service Boston/Norton MA 104 AM EST Thu Nov 27 2025 Coastal waters from the Merrimack River MA to Watch Hill RI out to 25 NM ANZ200-271900- 104 AM EST Thu Nov 27 2025 .Synopsis for Massachusetts and Rhode Island coastal waters... A strong cold front moves over the coastal waters early this morning. 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. A stronger low pressure crosses in the vicinity of SNE Tue/Wed. $$ ANZ250-271900- Coastal waters east of Ipswich Bay and the Stellwagen Bank National Marine Sanctuary- 104 AM EST Thu Nov 27 2025 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT... ...GALE WARNING IN EFFECT FROM FRIDAY MORNING THROUGH SATURDAY MORNING... .REST OF TONIGHT...W winds 20 to 25 kt. Seas 2 to 4 ft. Wave Detail: SW 3 ft at 4 seconds and SE 3 ft at 8 seconds. Patchy fog. A slight chance of rain. Vsby 1 to 3 NM. .THU...W winds 15 to 20 kt with gusts up to 30 kt. Seas 3 to 5 ft. Wave Detail: SW 4 ft at 6 seconds and SE 3 ft at 8 seconds. .THU NIGHT...W winds 15 to 20 kt with gusts up to 30 kt. Seas 3 to 5 ft. Wave Detail: SW 5 ft at 6 seconds and SE 2 ft at 9 seconds. .FRI...W winds 20 to 25 kt with gusts up to 35 kt. Seas 4 to 6 ft. Wave Detail: SW 5 ft at 6 seconds and SE 1 foot at 9 seconds. .FRI NIGHT...W winds 25 to 30 kt with gusts up to 35 kt. Seas 5 to 7 ft. Wave Detail: W 5 ft at 6 seconds and SE 1 foot at 9 seconds. .SAT...W winds 20 to 25 kt, becoming NW 15 to 20 kt in the afternoon. Gusts up to 30 kt. Seas 4 to 6 ft. Wave Detail: W 5 ft at 6 seconds and SE 1 foot at 9 seconds. .SAT NIGHT...NW winds 10 to 15 kt with gusts up to 20 kt, becoming W around 5 kt after midnight. Seas 2 to 4 ft. .SUN...S winds 20 to 25 kt with gusts up to 30 kt. Seas 2 to 4 ft. A chance of rain. .SUN NIGHT...SW winds 20 to 25 kt with gusts up to 30 kt. Seas 4 to 6 ft. Rain. .MON...W winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 4 ft. A chance of rain. .MON NIGHT...N winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ251-271900- Massachusetts Bay and Ipswich Bay- 104 AM EST Thu Nov 27 2025 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT... ...GALE WARNING IN EFFECT FROM FRIDAY MORNING THROUGH SATURDAY MORNING... .REST OF TONIGHT...W winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 3 ft. Wave Detail: S 3 ft at 3 seconds and SW 2 ft at 7 seconds. .THU...W winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 3 ft. Wave Detail: W 3 ft at 4 seconds and SW 2 ft at 7 seconds. .THU NIGHT...SW winds 15 to 20 kt with gusts up to 30 kt. Seas 2 to 3 ft. Wave Detail: SW 3 ft at 3 seconds and SW 2 ft at 7 seconds. .FRI...SW winds 15 to 20 kt, becoming W 20 to 25 kt in the afternoon. Gusts up to 30 kt. Seas 2 to 3 ft. Wave Detail: SW 3 ft at 5 seconds and SE 1 foot at 9 seconds. .FRI NIGHT THROUGH SAT NIGHT...W winds 20 to 25 kt with gusts up to 30 kt. Seas 2 to 3 ft. Wave Detail: W 3 ft at 4 seconds and SW 3 ft at 7 seconds. .SUN...S winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 3 ft. Wave Detail: S 3 ft at 4 seconds and SE 1 foot at 10 seconds. A chance of rain. .SUN NIGHT...SW winds 25 to 30 kt. Seas 3 to 4 ft. Rain. .MON...W winds 15 to 20 kt. Seas 2 to 3 ft. A chance of rain. .MON NIGHT...N winds 10 to 15 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. $$ ANZ231-271900- Cape Cod Bay- 104 AM EST Thu Nov 27 2025 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT... ...GALE WARNING IN EFFECT FROM FRIDAY MORNING THROUGH SATURDAY MORNING... .REST OF TONIGHT...W winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 3 ft. Wave Detail: S 3 ft at 7 seconds and SW 2 ft at 3 seconds. Patchy fog. Vsby 1 to 3 NM. .THU...W winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 3 ft. Wave Detail: W 3 ft at 4 seconds and SW 3 ft at 8 seconds. .THU NIGHT...W winds around 15 kt with gusts up to 25 kt. Seas 2 to 3 ft. Wave Detail: W 3 ft at 4 seconds and SW 3 ft at 7 seconds. .FRI...W winds 15 to 20 kt, increasing to 20 to 25 kt in the afternoon. Gusts up to 35 kt. Seas 3 to 5 ft. Wave Detail: W 4 ft at 4 seconds and SW 4 ft at 7 seconds. .FRI NIGHT...W winds 20 to 25 kt with gusts up to 35 kt. Seas 3 to 5 ft. Wave Detail: W 4 ft at 4 seconds and SW 4 ft at 7 seconds. .SAT...W winds 20 to 25 kt, diminishing to 15 to 20 kt in the afternoon. Seas 2 to 4 ft. Wave Detail: W 4 ft at 6 seconds and SE 1 foot at 9 seconds. .SAT NIGHT...NW winds 10 to 15 kt, becoming SW around 5 kt after midnight. Seas around 2 ft. .SUN...S winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 3 ft. A chance of rain. .SUN NIGHT...SW winds 20 to 25 kt with gusts up to 30 kt. Seas 3 to 4 ft. Rain. .MON...W winds 15 to 20 kt. Seas 2 to 3 ft. A chance of rain. .MON NIGHT...N winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ254-271900- Coastal waters from Provincetown MA to Chatham MA to Nantucket MA out 20 nm- 104 AM EST Thu Nov 27 2025 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT... ...GALE WARNING IN EFFECT FROM FRIDAY MORNING THROUGH SATURDAY MORNING... .REST OF TONIGHT...W winds 15 to 20 kt with gusts up to 30 kt. Seas 4 to 6 ft. Wave Detail: SW 5 ft at 8 seconds and W 3 ft at 4 seconds. Patchy fog. Vsby 1 NM or less. .THU...W winds 20 to 25 kt, diminishing to 15 to 20 kt in the afternoon. Gusts up to 30 kt. Seas 5 to 7 ft. Wave Detail: SW 5 ft at 8 seconds and W 4 ft at 5 seconds. .THU NIGHT...W winds 15 to 20 kt with gusts up to 30 kt. Seas 5 to 7 ft. Wave Detail: SW 5 ft at 8 seconds and W 4 ft at 5 seconds. .FRI...W winds 20 to 25 kt, increasing to 25 to 30 kt in the afternoon. Seas 5 to 7 ft. S and E of Nantucket, seas 7 to 9 ft, building to 8 to 11 ft in the afternoon. Wave Detail: SW 6 ft at 6 seconds and SE 2 ft at 9 seconds. .FRI NIGHT AND SAT...NW winds 25 to 30 kt with gusts up to 40 kt. Seas 5 to 7 ft. Wave Detail: W 6 ft at 6 seconds and SE 1 foot at 9 seconds. .SAT NIGHT...NW winds 10 to 15 kt with gusts up to 20 kt, becoming SW around 5 kt after midnight. Seas 2 to 4 ft. Wave Detail: W 3 ft at 7 seconds and SE 1 foot at 9 seconds. .SUN...S winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 4 ft. A chance of rain. .SUN NIGHT...S winds 20 to 25 kt with gusts up to 30 kt. Seas 4 to 6 ft. Rain. .MON...W winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to 5 ft. Rain likely. .MON NIGHT...N 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. $$ ANZ255-271900- Coastal Waters extending out to 25 nm South of Marthas Vineyard and Nantucket- 104 AM EST Thu Nov 27 2025 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT... ...GALE WARNING IN EFFECT FROM FRIDAY MORNING THROUGH SATURDAY MORNING... .REST OF TONIGHT...W winds 25 to 30 kt. Seas 5 to 8 ft. Wave Detail: SW 8 ft at 7 seconds and W 2 ft at 4 seconds. Patchy fog. Vsby 1 NM or less. .THU...W winds 25 to 30 kt, diminishing to 20 to 25 kt in the afternoon. Seas 6 to 9 ft. Wave Detail: SW 9 ft at 8 seconds and SE 3 ft at 8 seconds. .THU NIGHT...W winds 20 to 25 kt with gusts up to 30 kt. Seas 7 to 9 ft. Wave Detail: SW 9 ft at 8 seconds and W 2 ft at 4 seconds. .FRI...W winds 25 to 35 kt with gusts up to 40 kt. Seas 7 to 10 ft. Wave Detail: SW 10 ft at 8 seconds and W 2 ft at 4 seconds. .FRI NIGHT...W winds 30 to 35 kt, becoming 25 to 35 kt after midnight. Seas 8 to 11 ft. Wave Detail: SW 10 ft at 8 seconds and W 2 ft at 5 seconds. .SAT...W winds 25 to 30 kt with gusts up to 35 kt, becoming NW 15 to 20 kt with gusts up to 25 kt in the afternoon. Seas 6 to 9 ft, subsiding to 4 to 6 ft in the afternoon. Wave Detail: W 9 ft at 8 seconds and NW 2 ft at 5 seconds, becoming W 6 ft at 6 seconds and SE 1 foot at 9 seconds. .SAT NIGHT...NW winds 10 to 15 kt, becoming NE around 5 kt after midnight. Seas 2 to 4 ft. .SUN...S winds 20 to 25 kt with gusts up to 30 kt. Seas 3 to 5 ft. A chance of rain. .SUN NIGHT...SW winds 25 to 30 kt with gusts up to 35 kt. Seas 5 to 7 ft. Rain. .MON...NW winds 20 to 25 kt. Seas 4 to 6 ft. Rain likely. .MON NIGHT...N winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ256-271900- Coastal Waters from Montauk NY to Marthas Vineyard extending out to 20 nm South of Block Island- 104 AM EST Thu Nov 27 2025 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT... ...GALE WARNING IN EFFECT FROM FRIDAY MORNING THROUGH SATURDAY MORNING... .REST OF TONIGHT...W winds 25 to 30 kt. Seas 6 to 8 ft. Wave Detail: W 8 ft at 6 seconds and SE 2 ft at 8 seconds. Patchy fog. Vsby 1 to 3 NM. .THU...W winds 25 to 30 kt, diminishing to 20 to 25 kt in the afternoon. Seas 7 to 9 ft. Wave Detail: SW 8 ft at 8 seconds and NW 3 ft at 5 seconds. .THU NIGHT...W winds 20 to 25 kt with gusts up to 35 kt. Seas 7 to 9 ft. Wave Detail: SW 8 ft at 8 seconds and NW 3 ft at 5 seconds. .FRI...W winds 25 to 35 kt with gusts up to 40 kt. Seas 7 to 10 ft. Wave Detail: SW 10 ft at 8 seconds and W 3 ft at 5 seconds. .FRI NIGHT...W winds 30 to 35 kt, diminishing to 25 to 30 kt after midnight. Seas 7 to 10 ft. Wave Detail: SW 10 ft at 8 seconds and NW 4 ft at 5 seconds. .SAT...W winds 25 to 30 kt with gusts up to 35 kt, becoming NW 15 to 20 kt with gusts up to 25 kt in the afternoon. Seas 5 to 8 ft, subsiding to 4 to 6 ft in the afternoon. Wave Detail: W 7 ft at 8 seconds and NW 4 ft at 5 seconds, becoming W 5 ft at 6 seconds. .SAT NIGHT...NW winds 10 to 15 kt, becoming E 5 to 10 kt after midnight. Seas 2 to 4 ft. .SUN...S winds 20 to 25 kt with gusts up to 30 kt. Seas 3 to 5 ft. A chance of rain. .SUN NIGHT...SW winds 25 to 30 kt with gusts up to 35 kt. Seas 5 to 8 ft. Rain. .MON...NW winds 20 to 25 kt. Seas 4 to 6 ft. A chance of rain. .MON NIGHT...N winds 10 to 15 kt with gusts up to 20 kt. Seas around 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. $$ ANZ232-271900- Nantucket Sound- 104 AM EST Thu Nov 27 2025 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT... ...GALE WARNING IN EFFECT FROM FRIDAY MORNING THROUGH SATURDAY MORNING... .REST OF TONIGHT...W winds 20 to 25 kt with gusts up to 30 kt. Seas 3 to 5 ft. Wave Detail: W 4 ft at 4 seconds and SW 3 ft at 7 seconds. Patchy fog. Vsby 1 NM or less. .THU...W winds 20 to 25 kt with gusts up to 30 kt. Seas 3 to 5 ft. Wave Detail: W 4 ft at 4 seconds and SW 4 ft at 8 seconds. .THU NIGHT...W winds 15 to 20 kt with gusts up to 30 kt. Seas 3 to 5 ft. Wave Detail: W 4 ft at 4 seconds and SW 4 ft at 8 seconds. .FRI...W winds 20 to 25 kt, increasing to 25 to 30 kt in the afternoon. Seas 4 to 6 ft. Wave Detail: W 4 ft at 4 seconds and SW 4 ft at 7 seconds. .FRI NIGHT...W winds 25 to 30 kt with gusts up to 35 kt. Seas 4 to 6 ft. Wave Detail: W 5 ft at 5 seconds and SW 4 ft at 8 seconds. .SAT...W winds 20 to 25 kt with gusts up to 30 kt, becoming NW 15 to 20 kt in the afternoon. Seas 3 to 5 ft. Wave Detail: NW 5 ft at 5 seconds and SW 3 ft at 8 seconds. .SAT NIGHT...NW winds 10 to 15 kt, becoming NE around 5 kt after midnight. Seas 2 to 3 ft in the evening, then 1 foot or less. .SUN...S winds 20 to 25 kt. Seas 2 to 4 ft. A chance of rain. .SUN NIGHT...SW winds 25 to 30 kt. Seas 3 to 5 ft. Rain. .MON...NW winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 4 ft. A chance of rain. .MON NIGHT...N winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ233-271900- Vineyard Sound- 104 AM EST Thu Nov 27 2025 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT... ...GALE WARNING IN EFFECT FROM FRIDAY MORNING THROUGH SATURDAY MORNING... .REST OF TONIGHT...W winds 20 to 25 kt with gusts up to 30 kt. Seas 3 to 5 ft. Wave Detail: SW 5 ft at 7 seconds and SW 2 ft at 4 seconds. Patchy fog. Vsby 1 to 3 NM. .THU...W winds 20 to 25 kt with gusts up to 30 kt. Seas 4 to 6 ft. Wave Detail: SW 6 ft at 7 seconds and W 2 ft at 4 seconds. .THU NIGHT...W winds 15 to 20 kt with gusts up to 30 kt. Seas 4 to 6 ft. Wave Detail: SW 6 ft at 7 seconds and W 2 ft at 4 seconds. .FRI...W winds 20 to 25 kt, increasing to 25 to 30 kt in the afternoon. Seas 5 to 7 ft. Wave Detail: SW 7 ft at 7 seconds and W 2 ft at 4 seconds. .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 3 ft at 5 seconds. .SAT...W winds 20 to 25 kt with gusts up to 30 kt, becoming NW 15 to 20 kt in the afternoon. Seas 3 to 5 ft. Wave Detail: SW 5 ft at 8 seconds and NW 3 ft at 5 seconds. .SAT NIGHT...NW winds 10 to 15 kt, becoming NE around 5 kt after midnight. Seas around 2 ft in the evening, then 1 foot or less. .SUN...S winds 20 to 25 kt with gusts up to 30 kt. Seas 2 to 4 ft. A chance of rain. .SUN NIGHT...SW winds 25 to 30 kt. Seas 4 to 6 ft. Rain. .MON...NW winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 4 ft. A chance of rain. .MON NIGHT...N winds 10 to 15 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. $$ ANZ234-271900- Buzzards Bay- 104 AM EST Thu Nov 27 2025 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT... ...GALE WARNING IN EFFECT FROM FRIDAY MORNING THROUGH SATURDAY MORNING... .REST OF TONIGHT...W winds 20 to 25 kt with gusts up to 30 kt. Seas 3 to 4 ft. Wave Detail: SW 4 ft at 7 seconds and SW 3 ft at 4 seconds. Patchy fog. Vsby 1 NM or less. .THU...W winds 15 to 20 kt with gusts up to 30 kt. Seas 3 to 5 ft. Wave Detail: SW 5 ft at 7 seconds and W 3 ft at 4 seconds. .THU NIGHT...W winds 15 to 20 kt with gusts up to 30 kt. Seas 3 to 5 ft. Wave Detail: SW 5 ft at 7 seconds and W 3 ft at 4 seconds. .FRI...W winds 20 to 25 kt, increasing to 25 to 30 kt in the afternoon. Seas 3 to 5 ft. Wave Detail: SW 5 ft at 7 seconds and W 3 ft at 4 seconds. .FRI NIGHT...W winds 25 to 30 kt, diminishing to 20 to 25 kt after midnight. Seas 3 to 5 ft. Wave Detail: SW 5 ft at 8 seconds and W 3 ft at 4 seconds. .SAT...W winds 20 to 25 kt, becoming NW 15 to 20 kt in the afternoon. Seas 2 to 4 ft. Wave Detail: SW 4 ft at 8 seconds and W 3 ft at 5 seconds. .SAT NIGHT...NW winds 5 to 10 kt, becoming NE after midnight. Seas around 2 ft in the evening, then 1 foot or less. .SUN...S winds 20 to 25 kt with gusts up to 30 kt. Seas 2 to 4 ft. A chance of rain. .SUN NIGHT...SW winds 25 to 30 kt. Seas 3 to 5 ft. Rain. .MON...NW winds 15 to 20 kt. Seas 2 to 3 ft. A chance of rain. .MON NIGHT...N winds 10 to 15 kt. Seas around 2 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ235-271900- Rhode Island Sound- 104 AM EST Thu Nov 27 2025 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT... ...GALE WARNING IN EFFECT FROM FRIDAY MORNING THROUGH SATURDAY MORNING... .REST OF TONIGHT...W winds 20 to 25 kt with gusts up to 30 kt. Seas 5 to 7 ft. Wave Detail: S 7 ft at 7 seconds. Patchy fog. Vsby 1 to 3 NM. .THU...W winds 20 to 25 kt with gusts up to 30 kt. Seas 5 to 7 ft. Wave Detail: SW 7 ft at 8 seconds and W 4 ft at 5 seconds. .THU NIGHT...W winds 15 to 20 kt with gusts up to 30 kt. Seas 5 to 7 ft. Wave Detail: SW 7 ft at 8 seconds and W 3 ft at 5 seconds. .FRI...W winds 20 to 25 kt, increasing to 25 to 30 kt in the afternoon. Gusts up to 40 kt. Seas 5 to 8 ft. Wave Detail: SW 8 ft at 7 seconds. .FRI NIGHT...W winds 25 to 30 kt with gusts up to 35 kt. Seas 5 to 8 ft. Wave Detail: SW 8 ft at 8 seconds and W 4 ft at 5 seconds. .SAT...W winds 20 to 25 kt with gusts up to 30 kt, becoming NW 15 to 20 kt in the afternoon. Seas 4 to 6 ft, subsiding to 2 to 4 ft in the afternoon. Wave Detail: SW 6 ft at 8 seconds and W 3 ft at 5 seconds, becoming SW 4 ft at 7 seconds and NW 3 ft at 4 seconds. .SAT NIGHT...NW winds 10 to 15 kt, becoming E 5 to 10 kt after midnight. Seas 2 to 3 ft. .SUN...S winds 20 to 25 kt with gusts up to 30 kt. Seas 3 to 5 ft. A chance of rain. .SUN NIGHT...SW winds 25 to 30 kt. Seas 5 to 7 ft. Rain. .MON...NW winds 15 to 20 kt. Seas 3 to 5 ft. A chance of rain. .MON NIGHT...N 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. $$ ANZ237-271900- Block Island Sound- 104 AM EST Thu Nov 27 2025 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT... ...GALE WARNING IN EFFECT FROM FRIDAY MORNING THROUGH SATURDAY MORNING... .REST OF TONIGHT...W winds 20 to 25 kt with gusts up to 30 kt. Seas 4 to 6 ft. Wave Detail: W 4 ft at 5 seconds and S 4 ft at 8 seconds. .THU...W winds 20 to 25 kt with gusts up to 30 kt. Seas 4 to 6 ft. Wave Detail: W 4 ft at 5 seconds and S 4 ft at 8 seconds. .THU NIGHT...W winds 15 to 20 kt with gusts up to 30 kt. Seas 4 to 6 ft. Wave Detail: W 4 ft at 5 seconds and S 4 ft at 9 seconds. .FRI...W winds 20 to 25 kt, increasing to 25 to 30 kt in the afternoon. Seas 5 to 7 ft. Wave Detail: W 5 ft at 5 seconds and SW 5 ft at 8 seconds. .FRI NIGHT...W winds 25 to 30 kt, diminishing to 20 to 25 kt after midnight. Seas 5 to 7 ft. Wave Detail: W 5 ft at 5 seconds and SW 5 ft at 8 seconds. .SAT...W winds 15 to 20 kt, becoming NW 10 to 15 kt in the afternoon. Gusts up to 25 kt. Seas 3 to 5 ft, subsiding to 2 to 3 ft in the afternoon. Wave Detail: W 4 ft at 5 seconds and SW 2 ft at 8 seconds, becoming W 3 ft at 4 seconds and SW 2 ft at 7 seconds. .SAT NIGHT...NW winds 5 to 10 kt, becoming E after midnight. Seas around 2 ft in the evening, then 1 foot or less. .SUN...S winds 20 to 25 kt with gusts up to 30 kt. Seas 2 to 4 ft. A chance of rain. .SUN NIGHT...SW winds 20 to 25 kt with gusts up to 30 kt. Seas 4 to 6 ft. Rain likely. .MON...NW winds around 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. A chance of rain. .MON NIGHT...N winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ230-271900- Boston Harbor- 104 AM EST Thu Nov 27 2025 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT... ...GALE WARNING IN EFFECT FROM FRIDAY MORNING THROUGH FRIDAY EVENING... .REST OF TONIGHT...W winds 15 to 20 kt with gusts up to 25 kt. Waves around 2 ft. .THU...W winds 15 to 20 kt with gusts up to 25 kt. Waves around 2 ft. .THU NIGHT...SW winds 10 to 15 kt with gusts up to 25 kt. Waves around 2 ft. .FRI...SW winds 15 to 20 kt, becoming W 20 to 25 kt in the afternoon. Gusts up to 30 kt. Waves around 2 ft. .FRI NIGHT AND SAT...W winds 20 to 25 kt with gusts up to 30 kt. Waves around 2 ft. .SAT NIGHT...W winds 5 to 10 kt, becoming SW after midnight. Waves 1 foot or less. .SUN...S winds 15 to 20 kt with gusts up to 25 kt. Waves around 2 ft. A chance of rain. .SUN NIGHT...SW winds 20 to 25 kt. Waves around 2 ft. Rain. .MON...W winds 15 to 20 kt. Waves around 2 ft. A chance of rain. .MON NIGHT...NW winds 10 to 15 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. $$ ANZ236-271900- Narragansett Bay- 104 AM EST Thu Nov 27 2025 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT... ...GALE WARNING IN EFFECT FROM FRIDAY MORNING THROUGH FRIDAY EVENING... .REST OF TONIGHT...W winds 15 to 20 kt with gusts up to 25 kt. Waves 2 to 4 ft. .THU...W winds 15 to 20 kt, diminishing to 10 to 15 kt in the afternoon. Gusts up to 30 kt. Waves 2 to 4 ft. .THU NIGHT...W winds 10 to 15 kt with gusts up to 30 kt. Waves 2 to 4 ft. .FRI...W winds 15 to 20 kt, increasing to 20 to 25 kt in the afternoon. Gusts up to 30 kt. Waves 2 to 4 ft. .FRI NIGHT AND SAT...NW winds 15 to 20 kt with gusts up to 30 kt. Waves 2 to 4 ft. .SAT NIGHT...NW winds 5 to 10 kt, becoming NE after midnight. Waves around 2 ft in the evening, then 1 foot or less. .SUN...S winds 15 to 20 kt with gusts up to 25 kt. Waves 2 to 4 ft. A chance of rain. .SUN NIGHT...SW winds 20 to 25 kt with gusts up to 30 kt. Waves 3 to 5 ft. Rain likely. .MON...NW winds 10 to 15 kt with gusts up to 20 kt. Waves 2 to 3 ft. A chance of rain. .MON NIGHT...N winds 5 to 10 kt. Waves around 2 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ 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