Coastal Waters Forecast
Issued by NWS Boston, MA
Issued by NWS Boston, MA
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480 FZUS51 KBOX 090605 CWFBOX Coastal Waters Forecast for Massachusetts and Rhode Island National Weather Service Boston/Norton MA 105 AM EST Tue Dec 9 2025 Coastal waters from the Merrimack River MA to Watch Hill RI out to 25 NM ANZ200-091900- 105 AM EST Tue Dec 9 2025 .Synopsis for Massachusetts and Rhode Island coastal waters... High pres builds into the waters through Tue. It then moves east as low pres moves over the waters later Wed into early Thurs. High pres then briefly returns Thurs before becming more unsettled again for Fri and Sat. $$ ANZ250-091900- Coastal waters east of Ipswich Bay and the Stellwagen Bank National Marine Sanctuary- 105 AM EST Tue Dec 9 2025 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 4 AM EST EARLY THIS MORNING... .REST OF TONIGHT...NW winds around 10 kt. Seas 2 to 4 ft. Wave Detail: N 3 ft at 6 seconds and E 1 foot at 9 seconds. .TUE...NW winds 5 to 10 kt, becoming SW in the afternoon. Seas 2 to 3 ft. Wave Detail: NW 2 ft at 5 seconds and E 1 foot at 9 seconds. .TUE NIGHT...SW winds 15 to 20 kt with gusts up to 30 kt. Seas 3 to 5 ft. Wave Detail: SW 5 ft at 5 seconds and NE 1 foot at 4 seconds. A chance of rain. .WED...SW winds 15 to 20 kt, becoming S 20 to 25 kt in the afternoon. Gusts up to 30 kt. Seas 3 to 5 ft. Wave Detail: SW 4 ft at 5 seconds and SE 1 foot at 9 seconds. A chance of rain in the morning, then rain likely in the afternoon. .WED NIGHT...SW winds 20 to 25 kt with gusts up to 30 kt. Seas 3 to 5 ft. Wave Detail: SW 5 ft at 5 seconds and SE 1 foot at 9 seconds. Rain likely, mainly in the evening. .THU...W winds 20 to 25 kt with gusts up to 30 kt. Seas 3 to 5 ft. Wave Detail: W 5 ft at 5 seconds and S 2 ft at 7 seconds. .THU NIGHT...W winds 20 to 25 kt with gusts up to 30 kt. Seas 3 to 5 ft. .FRI...W winds around 20 kt with gusts up to 25 kt. Seas 3 to 5 ft. .FRI NIGHT...W winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 4 ft. A chance of snow. .SAT...W winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to 5 ft. A chance of snow. .SAT NIGHT...W winds 20 to 25 kt with gusts up to 30 kt. Seas 4 to 6 ft. A chance of snow. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ251-091900- Massachusetts Bay and Ipswich Bay- 105 AM EST Tue Dec 9 2025 .REST OF TONIGHT...NW winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: N 2 ft at 5 seconds and E 1 foot at 9 seconds. .TUE...NW winds 5 to 10 kt, becoming SW with gusts up to 20 kt in the afternoon. Seas around 2 ft. Wave Detail: SW 2 ft at 3 seconds and N 2 ft at 5 seconds. .TUE NIGHT...SW winds 10 to 15 kt with gusts up to 30 kt. Seas 2 to 3 ft. Wave Detail: S 3 ft at 4 seconds and NE 1 foot at 4 seconds. A chance of rain. A chance of snow in the evening. .WED...SW winds 10 to 15 kt, becoming S 15 to 20 kt in the afternoon. Gusts up to 25 kt. Seas 2 to 3 ft. Wave Detail: S 3 ft at 5 seconds and E 1 foot at 9 seconds. A chance of rain in the morning, then rain likely in the afternoon. .WED NIGHT...SW winds 15 to 20 kt with gusts up to 25 kt. Seas around 3 ft. Wave Detail: S 3 ft at 4 seconds and E 1 foot at 9 seconds. Rain likely, mainly in the evening. .THU AND THU NIGHT...W winds 20 to 25 kt. Seas 2 to 3 ft. Wave Detail: SW 3 ft at 4 seconds and SE 1 foot at 8 seconds. .FRI...W winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 3 ft. .FRI NIGHT AND SAT...W winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 3 ft. A chance of snow. .SAT NIGHT...W 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. $$ ANZ231-091900- Cape Cod Bay- 105 AM EST Tue Dec 9 2025 .REST OF TONIGHT...NW winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: N 3 ft at 6 seconds and E 1 foot at 9 seconds. .TUE...NW winds 5 to 10 kt, becoming SW in the afternoon. Seas around 2 ft. Wave Detail: N 2 ft at 6 seconds and E 1 foot at 9 seconds. .TUE NIGHT...SW winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 4 ft. Wave Detail: S 3 ft at 4 seconds and NE 1 foot at 5 seconds. A chance of rain. .WED...SW winds 10 to 15 kt, becoming S 15 to 20 kt in the afternoon. Gusts up to 25 kt. Seas 2 to 4 ft. Wave Detail: SW 3 ft at 4 seconds and SE 1 foot at 5 seconds. A chance of rain in the afternoon. .WED NIGHT...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to 4 ft. Wave Detail: SW 3 ft at 5 seconds and SE 1 foot at 9 seconds. A chance of rain. .THU AND THU NIGHT...W winds 15 to 20 kt with gusts up to 25 kt. Seas around 3 ft. Wave Detail: W 3 ft at 4 seconds and S 3 ft at 8 seconds. .FRI...W winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 3 ft. .FRI NIGHT...W winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. A chance of snow. .SAT...W winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 3 ft. A chance of rain and snow. .SAT NIGHT...W winds around 20 kt with gusts up to 25 kt. Seas 3 to 4 ft. A chance of snow. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ254-091900- Coastal waters from Provincetown MA to Chatham MA to Nantucket MA out 20 nm- 105 AM EST Tue Dec 9 2025 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 4 AM EST EARLY THIS MORNING... .REST OF TONIGHT...N winds 10 to 15 kt. Seas 3 to 5 ft. Wave Detail: N 4 ft at 6 seconds and E 1 foot at 9 seconds. .TUE...NW winds 5 to 10 kt, becoming SW in the afternoon. Seas 2 to 4 ft. Wave Detail: N 3 ft at 6 seconds and E 1 foot at 9 seconds. .TUE 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, building to 4 to 6 ft after midnight. Wave Detail: SW 3 ft at 4 seconds and NE 2 ft at 5 seconds, becoming SW 5 ft at 5 seconds and NE 1 foot at 5 seconds. A chance of rain. .WED...SW winds 15 to 20 kt, increasing to 20 to 25 kt in the afternoon. Gusts up to 30 kt. Seas 4 to 6 ft. Wave Detail: SW 6 ft at 6 seconds and E 1 foot at 9 seconds. A chance of rain in the afternoon. .WED NIGHT...SW winds 20 to 25 kt with gusts up to 30 kt. Seas 5 to 7 ft, except 9 to 12 ft S and E of Nantucket. Wave Detail: SW 6 ft at 6 seconds and SE 1 foot at 9 seconds. A chance of rain. .THU AND THU NIGHT...W winds 20 to 25 kt. Seas 5 to 7 ft. Wave Detail: S 6 ft at 10 seconds and NW 5 ft at 5 seconds. .FRI...W winds 15 to 20 kt with gusts up to 25 kt. Seas 4 to 6 ft. .FRI NIGHT...W winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to 5 ft. A chance of rain. .SAT...W winds 20 to 25 kt. Seas 4 to 6 ft, except 7 to 10 ft S and E of Nantucket. A chance of rain and snow. .SAT NIGHT...W winds 20 to 25 kt. Seas 5 to 7 ft. A chance of snow and 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. $$ ANZ255-091900- Coastal Waters extending out to 25 nm South of Marthas Vineyard and Nantucket- 105 AM EST Tue Dec 9 2025 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 4 AM EST EARLY THIS MORNING... .REST OF TONIGHT...N winds 10 to 15 kt. Seas 2 to 4 ft. Wave Detail: N 3 ft at 4 seconds and E 1 foot at 9 seconds. .TUE...NW winds 5 to 10 kt, becoming SW in the afternoon. Seas 2 to 3 ft. Wave Detail: W 2 ft at 3 seconds and NE 2 ft at 5 seconds. .TUE NIGHT...SW winds 15 to 20 kt with gusts up to 30 kt. Seas 3 to 5 ft, building to 5 to 8 ft after midnight. Wave Detail: SW 5 ft at 5 seconds and NE 1 foot at 5 seconds, becoming SW 8 ft at 6 seconds and NE 1 foot at 5 seconds. A chance of rain after midnight. .WED...SW winds 20 to 25 kt, increasing to 25 to 30 kt in the afternoon. Seas 6 to 9 ft, building to 8 to 11 ft in the afternoon. Wave Detail: SW 9 ft at 7 seconds and W 1 foot at 4 seconds, becoming SW 10 ft at 8 seconds and SW 1 foot at 4 seconds. A chance of rain in the afternoon. .WED NIGHT...SW winds 25 to 30 kt with gusts up to 35 kt. Seas 9 to 13 ft. Wave Detail: SW 13 ft at 9 seconds and SW 2 ft at 4 seconds. A chance of rain. .THU...W winds 20 to 25 kt, increasing to 25 to 30 kt in the afternoon. Seas 8 to 11 ft. Wave Detail: SW 11 ft at 9 seconds and W 2 ft at 4 seconds. .THU NIGHT...W winds 25 to 30 kt. Seas 6 to 9 ft. .FRI...W winds 20 to 25 kt with gusts up to 30 kt. Seas 5 to 7 ft. .FRI NIGHT...W winds 20 to 25 kt. Seas 4 to 6 ft. A chance of rain. .SAT...W winds 25 to 30 kt. Seas 6 to 9 ft. A chance of rain. .SAT NIGHT...W winds 25 to 30 kt with gusts up to 35 kt. Seas 6 to 9 ft. A chance of rain and snow. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ256-091900- Coastal Waters from Montauk NY to Marthas Vineyard extending out to 20 nm South of Block Island- 105 AM EST Tue Dec 9 2025 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 4 AM EST EARLY THIS MORNING... .REST OF TONIGHT...N winds 10 to 15 kt. Seas 2 to 4 ft. Wave Detail: N 3 ft at 4 seconds and E 1 foot at 8 seconds. .TUE...NW winds 5 to 10 kt, becoming SW in the afternoon. Seas 2 to 3 ft. Wave Detail: W 2 ft at 3 seconds and NE 2 ft at 4 seconds. .TUE NIGHT...SW winds 15 to 20 kt with gusts up to 35 kt. Seas 3 to 5 ft, building to 6 to 9 ft after midnight. Wave Detail: SW 5 ft at 5 seconds and E 1 foot at 5 seconds, becoming SW 8 ft at 6 seconds and E 1 foot at 9 seconds. A chance of rain. .WED...SW winds 20 to 25 kt, increasing to 25 to 30 kt in the afternoon. Seas 7 to 9 ft, building to 8 to 11 ft in the afternoon. Wave Detail: SW 8 ft at 7 seconds and W 1 foot at 4 seconds, becoming SW 11 ft at 8 seconds and W 1 foot at 4 seconds. A chance of rain in the afternoon. .WED NIGHT...SW winds 25 to 30 kt with gusts up to 35 kt. Seas 9 to 13 ft. Wave Detail: SW 12 ft at 9 seconds and W 2 ft at 4 seconds. A chance of rain. .THU...W winds 25 to 30 kt, diminishing to 20 to 25 kt in the afternoon. Seas 8 to 11 ft, subsiding to 7 to 9 ft in the afternoon. Wave Detail: SW 10 ft at 9 seconds and W 3 ft at 5 seconds, becoming SW 9 ft at 10 seconds and NW 3 ft at 5 seconds. .THU NIGHT...W winds 25 to 30 kt, diminishing to 20 to 25 kt after midnight. Seas 5 to 8 ft. .FRI...W winds 20 to 25 kt with gusts up to 30 kt. Seas 4 to 6 ft. .FRI NIGHT...W winds 15 to 20 kt with gusts up to 25 kt. Seas 4 to 6 ft. A chance of rain and snow. .SAT...W winds 25 to 30 kt. Seas 6 to 9 ft. A chance of rain. .SAT NIGHT...W winds 25 to 30 kt with gusts up to 35 kt. Seas 6 to 9 ft. A chance of snow and 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. $$ ANZ232-091900- Nantucket Sound- 105 AM EST Tue Dec 9 2025 .REST OF TONIGHT...N winds 5 to 10 kt. Seas around 2 ft. Wave Detail: N 2 ft at 4 seconds and E 1 foot at 9 seconds. .TUE...NW winds 5 to 10 kt, becoming SW in the afternoon. Seas around 2 ft. Wave Detail: N 1 foot at 4 seconds and E 1 foot at 9 seconds. .TUE NIGHT...SW winds 10 to 15 kt with gusts up to 30 kt. Seas 3 to 5 ft. Wave Detail: SW 4 ft at 5 seconds and NE 1 foot at 5 seconds. A chance of rain. .WED...SW winds 15 to 20 kt, increasing to 20 to 25 kt in the afternoon. Gusts up to 30 kt. Seas 4 to 6 ft. Wave Detail: SW 5 ft at 7 seconds and SW 3 ft at 4 seconds. A chance of rain in the afternoon. .WED NIGHT...SW winds 20 to 25 kt with gusts up to 30 kt. Seas 5 to 7 ft. Wave Detail: SW 5 ft at 7 seconds and W 4 ft at 4 seconds. A chance of rain. .THU...W winds 20 to 25 kt. Seas 4 to 6 ft. Wave Detail: W 4 ft at 4 seconds and SW 3 ft at 9 seconds. .THU NIGHT...W winds 20 to 25 kt. Seas 3 to 5 ft. .FRI...W winds 20 to 25 kt. Seas 3 to 4 ft. .FRI NIGHT...W winds 15 to 20 kt. Seas 2 to 4 ft. A chance of rain. .SAT...W winds 20 to 25 kt. Seas 3 to 5 ft. A chance of rain and snow. .SAT NIGHT...W winds 20 to 25 kt with gusts up to 30 kt. Seas 4 to 6 ft. A chance of snow and rain. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ233-091900- Vineyard Sound- 105 AM EST Tue Dec 9 2025 .REST OF TONIGHT...N winds 5 to 10 kt. Seas around 2 ft. Wave Detail: N 1 foot at 3 seconds and E 1 foot at 9 seconds. .TUE...NW winds around 5 kt, becoming SW in the afternoon. Seas 1 foot or less, then around 2 ft in the afternoon. Wave Detail: N 1 foot at 3 seconds and SE 1 foot at 9 seconds, becoming SW 1 foot at 2 seconds and NE 1 foot at 4 seconds. .TUE NIGHT...SW winds 10 to 15 kt with gusts up to 30 kt. Seas 4 to 6 ft. Wave Detail: SW 6 ft at 7 seconds and SW 2 ft at 4 seconds. A chance of rain. .WED...SW 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 1 foot at 4 seconds. A chance of rain in the afternoon. .WED NIGHT...SW winds 25 to 30 kt, becoming W 20 to 25 kt after midnight. Seas 6 to 9 ft. Wave Detail: SW 8 ft at 8 seconds and SW 2 ft at 4 seconds. A chance of rain. .THU...W winds 20 to 25 kt. Seas 5 to 7 ft. Wave Detail: SW 7 ft at 9 seconds and W 2 ft at 4 seconds. .THU NIGHT...W winds 20 to 25 kt. Seas 3 to 5 ft. .FRI...W winds 20 to 25 kt. Seas 3 to 4 ft. .FRI NIGHT...W winds 15 to 20 kt. Seas 2 to 4 ft. A chance of snow and rain. .SAT...W winds 20 to 25 kt. Seas 3 to 5 ft. A chance of rain and snow. .SAT NIGHT...W winds 20 to 25 kt. Seas 4 to 6 ft. A chance of snow. 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. $$ ANZ234-091900- Buzzards Bay- 105 AM EST Tue Dec 9 2025 .REST OF TONIGHT...N winds 5 to 10 kt. Seas 1 foot or less. Wave Detail: N 1 foot at 3 seconds and E 1 foot at 9 seconds. .TUE...NW winds around 5 kt, becoming SW in the afternoon. Seas 1 foot or less, then around 2 ft in the afternoon. Wave Detail: N 1 foot at 3 seconds and E 1 foot at 9 seconds, becoming SW 1 foot at 2 seconds and NE 1 foot at 4 seconds. .TUE NIGHT...SW winds 10 to 15 kt with gusts up to 25 kt. Seas 3 to 5 ft. Wave Detail: SW 5 ft at 5 seconds and NE 1 foot at 5 seconds. A chance of rain. .WED...SW winds 15 to 20 kt, increasing to 25 to 30 kt in the afternoon. Seas 4 to 6 ft. Wave Detail: SW 6 ft at 7 seconds and W 2 ft at 4 seconds. A chance of rain in the afternoon. .WED NIGHT...SW winds 25 to 30 kt, becoming W 20 to 25 kt after midnight. Seas 4 to 6 ft. Wave Detail: SW 6 ft at 8 seconds and SW 2 ft at 4 seconds. A chance of rain. .THU...W winds 15 to 20 kt with gusts up to 25 kt. Seas 4 to 6 ft, subsiding to 3 to 4 ft in the afternoon. Wave Detail: SW 5 ft at 9 seconds and W 2 ft at 4 seconds, becoming SW 4 ft at 9 seconds and W 3 ft at 4 seconds. .THU NIGHT...W winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to 4 ft. .FRI...W winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 3 ft. .FRI NIGHT AND SAT...W winds 10 to 15 kt, increasing to 15 to 20 kt. Gusts up to 25 kt. Seas 2 to 4 ft. A chance of snow and rain. .SAT NIGHT...W winds 20 to 25 kt. Seas 3 to 4 ft. A chance of snow. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ235-091900- Rhode Island Sound- 105 AM EST Tue Dec 9 2025 .REST OF TONIGHT...N winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft. Wave Detail: N 2 ft at 3 seconds and SE 1 foot at 9 seconds. .TUE...NW winds 5 to 10 kt, becoming SW in the afternoon. Seas around 2 ft. Wave Detail: SW 2 ft at 3 seconds and NE 1 foot at 3 seconds. .TUE NIGHT...SW winds 15 to 20 kt with gusts up to 35 kt. Seas 3 to 5 ft, building to 5 to 7 ft after midnight. Wave Detail: SW 5 ft at 5 seconds and E 1 foot at 5 seconds, becoming SW 7 ft at 6 seconds and SE 1 foot at 9 seconds. A chance of rain. .WED...SW winds 20 to 25 kt, increasing to 25 to 30 kt in the afternoon. Seas 5 to 7 ft, building to 6 to 9 ft in the afternoon. Wave Detail: SW 7 ft at 7 seconds and W 2 ft at 4 seconds, becoming SW 9 ft at 7 seconds and SW 1 foot at 4 seconds. A chance of rain in the afternoon. .WED NIGHT...SW winds 25 to 30 kt. Seas 7 to 10 ft. Wave Detail: SW 10 ft at 9 seconds and W 3 ft at 5 seconds. A chance of rain. .THU...W winds 20 to 25 kt. Seas 5 to 8 ft. Wave Detail: SW 8 ft at 9 seconds and W 3 ft at 5 seconds. .THU NIGHT...W winds 20 to 25 kt. Seas 4 to 6 ft. .FRI...W winds 20 to 25 kt. Seas 3 to 5 ft. .FRI NIGHT...W winds 15 to 20 kt. Seas 3 to 4 ft. A chance of snow and rain. .SAT...W winds 20 to 25 kt. Seas 4 to 6 ft. A chance of rain and snow. .SAT NIGHT...W winds 20 to 25 kt with gusts up to 30 kt. Seas 5 to 7 ft. A chance of snow. 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. $$ ANZ237-091900- Block Island Sound- 105 AM EST Tue Dec 9 2025 .REST OF TONIGHT...N winds 5 to 10 kt. Seas around 2 ft. Wave Detail: N 2 ft at 4 seconds and SE 1 foot at 8 seconds. .TUE...NW winds around 5 kt, becoming SW in the afternoon. Seas around 2 ft. Wave Detail: NW 1 foot at 3 seconds and NE 1 foot at 4 seconds. .TUE NIGHT...SW winds 15 to 20 kt with gusts up to 30 kt. Seas 4 to 6 ft. Wave Detail: SW 4 ft at 5 seconds and NE 1 foot at 3 seconds. A chance of rain. .WED...SW winds 15 to 20 kt, increasing to 25 to 30 kt in the afternoon. Seas 5 to 7 ft. Wave Detail: SW 7 ft at 6 seconds and SE 1 foot at 9 seconds. A chance of rain in the afternoon. .WED NIGHT...SW winds 25 to 30 kt, becoming W 20 to 25 kt after midnight. Seas 6 to 9 ft. Wave Detail: S 7 ft at 9 seconds and W 4 ft at 5 seconds. A chance of rain. .THU...W winds around 20 kt with gusts up to 25 kt. Seas 5 to 7 ft. Wave Detail: S 6 ft at 10 seconds and W 4 ft at 5 seconds. .THU NIGHT...W winds 15 to 20 kt with gusts up to 25 kt. Seas 4 to 6 ft. .FRI...W winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to 4 ft. .FRI NIGHT...W winds around 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. A chance of snow and rain. .SAT...W winds 20 to 25 kt. Seas 3 to 5 ft. A chance of rain and snow. .SAT NIGHT...W winds 20 to 25 kt. Seas 4 to 6 ft. A chance of snow. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ230-091900- Boston Harbor- 105 AM EST Tue Dec 9 2025 .REST OF TONIGHT...NW winds around 5 kt. Waves 1 foot or less. .TUE...W winds around 5 kt, becoming SW around 5 kt in the afternoon. Waves 1 foot or less, then around 2 ft in the afternoon. .TUE NIGHT...SW winds 5 to 10 kt. Waves around 2 ft. A chance of snow in the evening, then a chance of rain after midnight. .WED...SW winds 10 to 15 kt, becoming S 15 to 20 kt in the afternoon. Gusts up to 25 kt. Waves around 2 ft. A chance of rain in the morning, then rain likely in the afternoon. .WED NIGHT...SW winds 15 to 20 kt with gusts up to 25 kt. Waves around 2 ft. Rain likely, mainly in the evening. .THU AND THU NIGHT...W winds 15 to 20 kt with gusts up to 25 kt. Waves around 2 ft. .FRI...W winds 15 to 20 kt with gusts up to 25 kt. Waves around 2 ft. .FRI NIGHT AND SAT...W winds 10 to 15 kt, increasing to 15 to 20 kt. Waves around 2 ft. A chance of snow. .SAT NIGHT...W winds 15 to 20 kt. Waves around 2 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ236-091900- Narragansett Bay- 105 AM EST Tue Dec 9 2025 .REST OF TONIGHT...N winds 5 to 10 kt. Waves 1 foot or less. .TUE...NW winds around 5 kt, becoming SW in the afternoon. Waves 1 foot or less, then around 2 ft in the afternoon. .TUE NIGHT...SW winds 10 to 15 kt with gusts up to 25 kt. Waves 2 to 4 ft. A chance of rain. .WED...SW winds 15 to 20 kt, increasing to 20 to 25 kt in the afternoon. Gusts up to 30 kt. Waves 2 to 4 ft, building to 4 to 6 ft in the afternoon. A chance of rain in the afternoon. .WED NIGHT...SW winds 20 to 25 kt, becoming W 15 to 20 kt after midnight. Gusts up to 30 kt. Waves 3 to 5 ft. A chance of rain. .THU...W winds 15 to 20 kt with gusts up to 25 kt. Waves 3 to 5 ft, subsiding to 2 to 3 ft in the afternoon. .THU NIGHT...W winds 15 to 20 kt, diminishing to 10 to 15 kt after midnight. Waves 2 to 3 ft. .FRI...W winds 10 to 15 kt with gusts up to 20 kt. Waves 2 to 3 ft. .FRI NIGHT...W winds 10 to 15 kt. Waves 2 to 3 ft. A chance of snow. .SAT...W winds 15 to 20 kt. Waves 2 to 3 ft. A chance of snow and rain. .SAT NIGHT...W winds 15 to 20 kt. Waves 2 to 3 ft. A chance of snow. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ 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