Coastal Waters Forecast 
Issued by NWS Boston, MA
        
        
                
            
        Issued by NWS Boston, MA
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        401 FZUS51 KBOX 040905 CWFBOX Coastal Waters Forecast for Massachusetts and Rhode Island National Weather Service Boston/Norton MA 405 AM EST Tue Nov 4 2025 Coastal waters from the Merrimack River MA to Watch Hill RI out to 25 NM ANZ200-042200- 405 AM EST Tue Nov 4 2025 .Synopsis for Massachusetts and Rhode Island coastal waters... High pres over the TN Valley will build into the region Tue and Wed. Another low pres passes over the waters Wed night into Thu is replaced by high pres late Thu into Fri. Low pres returns over the weekend. $$ ANZ250-042200- Coastal waters east of Ipswich Bay and the Stellwagen Bank National Marine Sanctuary- 405 AM EST Tue Nov 4 2025 ...GALE WARNING IN EFFECT THROUGH THIS EVENING... .TODAY...NW winds 25 to 30 kt with gusts up to 45 kt. Seas 5 to 8 ft. Wave Detail: W 7 ft at 6 seconds and SE 1 foot at 10 seconds. .TONIGHT...W winds 25 to 30 kt with gusts up to 40 kt, diminishing to 15 to 20 kt with gusts up to 30 kt after midnight. Seas 5 to 7 ft. Wave Detail: NW 7 ft at 6 seconds and S 1 foot at 8 seconds. .WED...W winds 10 to 15 kt, becoming SW in the afternoon. Gusts up to 25 kt. Seas 2 to 4 ft. Wave Detail: W 3 ft at 5 seconds and SE 1 foot at 9 seconds. .WED NIGHT...SW winds 15 to 20 kt with gusts up to 30 kt, becoming W 30 to 40 kt with gusts up to 50 kt after midnight. Seas 3 to 4 ft, building to 4 to 6 ft after midnight. Wave Detail: SW 4 ft at 4 seconds and S 2 ft at 9 seconds, becoming SW 6 ft at 6 seconds and SE 1 foot at 12 seconds. Rain. .THU...NW winds 30 to 35 kt with gusts up to 45 kt, diminishing to 25 to 30 kt with gusts up to 35 kt in the afternoon. Seas 6 to 9 ft. Wave Detail: W 9 ft at 6 seconds and N 2 ft at 6 seconds. A chance of rain in the morning. .THU NIGHT...NW winds 20 to 25 kt with gusts up to 30 kt, diminishing to 10 to 15 kt with gusts up to 20 kt after midnight. Seas 5 to 7 ft, subsiding to 3 to 5 ft after midnight. Wave Detail: NW 6 ft at 6 seconds and SE 1 foot at 12 seconds, becoming NW 4 ft at 6 seconds and S 1 foot at 9 seconds. .FRI...SW winds 15 to 20 kt with gusts up to 30 kt. Seas 2 to 4 ft. .FRI NIGHT AND SAT...SW winds 15 to 20 kt with gusts up to 30 kt. Seas 3 to 5 ft. Rain likely. .SAT NIGHT...NW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ251-042200- Massachusetts Bay and Ipswich Bay- 405 AM EST Tue Nov 4 2025 ...GALE WARNING IN EFFECT THROUGH THIS EVENING... .TODAY...W winds 25 to 30 kt, becoming NW 20 to 25 kt this afternoon. Gusts up to 45 kt. Seas 3 to 4 ft. Wave Detail: NW 4 ft at 5 seconds and SE 1 foot at 11 seconds. .TONIGHT...W winds 20 to 25 kt, diminishing to 15 to 20 kt after midnight. Gusts up to 30 kt. Seas 2 to 4 ft. Wave Detail: NW 4 ft at 6 seconds and S 1 foot at 8 seconds. .WED...W winds 10 to 15 kt, becoming SW in the afternoon. Gusts up to 25 kt. Seas 2 to 3 ft. Wave Detail: NW 2 ft at 5 seconds and SE 1 foot at 10 seconds. .WED NIGHT...SW winds 15 to 20 kt with gusts up to 25 kt, becoming W 25 to 35 kt with gusts up to 45 kt after midnight. Seas 2 to 4 ft. Wave Detail: W 4 ft at 5 seconds and S 3 ft at 8 seconds. Rain likely. .THU...NW winds 25 to 30 kt. Gusts up to 40 kt in the morning. Seas 3 to 5 ft. Wave Detail: NW 5 ft at 5 seconds and SW 3 ft at 9 seconds. A chance of rain in the morning. .THU NIGHT...NW winds 15 to 20 kt with gusts up to 25 kt, becoming W 10 to 15 kt after midnight. Seas 2 to 4 ft. Wave Detail: N 3 ft at 5 seconds and SW 1 foot at 9 seconds. .FRI...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 3 ft. .FRI NIGHT AND SAT...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 3 ft. Rain likely. .SAT NIGHT...NW 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. $$ ANZ231-042200- Cape Cod Bay- 405 AM EST Tue Nov 4 2025 ...GALE WARNING IN EFFECT THROUGH THIS EVENING... .TODAY...W winds 25 to 30 kt with gusts up to 45 kt, diminishing to 20 to 25 kt with gusts up to 35 kt this afternoon. Seas 3 to 5 ft. Wave Detail: NW 5 ft at 6 seconds and SW 1 foot at 9 seconds. .TONIGHT...W winds 20 to 25 kt with gusts up to 35 kt, diminishing to 15 to 20 kt with gusts up to 25 kt after midnight. Seas 2 to 4 ft. Wave Detail: NW 4 ft at 6 seconds and SW 1 foot at 8 seconds. .WED...W winds 10 to 15 kt, becoming SW 15 to 20 kt in the afternoon. Gusts up to 25 kt. Seas 2 to 4 ft. Wave Detail: N 3 ft at 6 seconds and SW 2 ft at 3 seconds. .WED NIGHT...SW winds 20 to 25 kt with gusts up to 30 kt, becoming W 25 to 35 kt with gusts up to 45 kt after midnight. Seas 3 to 5 ft. Wave Detail: NW 5 ft at 5 seconds and S 4 ft at 8 seconds. Rain likely, mainly in the evening. .THU...NW winds 25 to 35 kt. Gusts up to 45 kt in the morning. Seas 4 to 6 ft. Wave Detail: NW 6 ft at 7 seconds and SW 3 ft at 9 seconds. A chance of rain in the morning. .THU NIGHT...NW winds 20 to 25 kt with gusts up to 30 kt, diminishing to 10 to 15 kt with gusts up to 20 kt after midnight. Seas 3 to 5 ft. Wave Detail: NW 5 ft at 6 seconds and SW 1 foot at 9 seconds. .FRI...SW winds 15 to 20 kt with gusts up to 30 kt. Seas 2 to 4 ft. .FRI NIGHT AND SAT...SW winds 20 to 25 kt, diminishing to 15 to 20 kt. Gusts up to 30 kt. Seas 2 to 4 ft. Rain likely. .SAT NIGHT...NW winds 10 to 15 kt. Seas around 2 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ254-042200- Coastal waters from Provincetown MA to Chatham MA to Nantucket MA out 20 nm- 405 AM EST Tue Nov 4 2025 ...GALE WARNING IN EFFECT THROUGH THIS EVENING... .TODAY...NW winds 25 to 30 kt with gusts up to 45 kt. Seas 5 to 8 ft. Wave Detail: NW 7 ft at 6 seconds and SW 2 ft at 9 seconds. .TONIGHT...W winds 20 to 25 kt. Gusts up to 40 kt, decreasing to 30 kt after midnight. Seas 5 to 8 ft. Wave Detail: NW 7 ft at 6 seconds and SW 2 ft at 9 seconds. .WED...W winds 10 to 15 kt, becoming SW 15 to 20 kt in the afternoon. Gusts up to 25 kt. Seas 3 to 5 ft. Wave Detail: SW 4 ft at 4 seconds and NW 4 ft at 7 seconds. .WED NIGHT...SW winds 25 to 30 kt with gusts up to 35 kt, becoming W 30 to 40 kt with gusts up to 50 kt after midnight. Seas 5 to 8 ft, building to 7 to 10 ft after midnight. S and E of Nantucket, seas 8 to 11 ft, building to 12 to 16 ft after midnight. Wave Detail: S 8 ft at 9 seconds and SW 5 ft at 5 seconds, becoming SW 10 ft at 9 seconds and W 8 ft at 6 seconds. A chance of rain. .THU...NW winds 30 to 40 kt with gusts up to 45 kt, diminishing to 25 to 30 kt with gusts up to 35 kt in the afternoon. Seas 8 to 11 ft. S and E of Nantucket, seas 12 to 16 ft, subsiding to 9 to 13 ft in the afternoon. Wave Detail: NW 9 ft at 7 seconds and SW 6 ft at 10 seconds. A chance of rain in the morning. .THU NIGHT...NW 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 5 to 8 ft, subsiding to 4 to 6 ft after midnight. Wave Detail: NW 7 ft at 8 seconds and N 2 ft at 7 seconds, becoming NW 5 ft at 7 seconds and S 2 ft at 9 seconds. .FRI...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to 5 ft. .FRI NIGHT AND SAT...SW winds 20 to 25 kt with gusts up to 30 kt. Seas 5 to 7 ft. Rain likely. .SAT NIGHT...NW winds 10 to 15 kt with gusts up to 20 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. $$ ANZ255-042200- Coastal Waters extending out to 25 nm South of Marthas Vineyard and Nantucket- 405 AM EST Tue Nov 4 2025 ...GALE WARNING IN EFFECT THROUGH THIS EVENING... .TODAY...NW winds 25 to 30 kt with gusts up to 45 kt. Seas 7 to 10 ft. Wave Detail: W 9 ft at 6 seconds and S 6 ft at 9 seconds. .TONIGHT...NW winds 20 to 25 kt with gusts up to 35 kt. Seas 6 to 9 ft, subsiding to 5 to 7 ft after midnight. Wave Detail: W 7 ft at 6 seconds and SW 3 ft at 9 seconds, becoming W 6 ft at 7 seconds and N 1 foot at 6 seconds. .WED...W winds 10 to 15 kt with gusts up to 20 kt, becoming SW 25 to 30 kt in the afternoon. Seas 4 to 6 ft. Wave Detail: SW 6 ft at 7 seconds and N 1 foot at 6 seconds. .WED NIGHT...SW winds 30 to 40 kt, becoming W 35 to 45 kt with gusts up to 50 kt after midnight. Seas 9 to 13 ft, building to 12 to 17 ft after midnight. Wave Detail: SW 13 ft at 9 seconds and W 3 ft at 5 seconds, becoming SW 17 ft at 10 seconds and W 4 ft at 6 seconds. A chance of rain. .THU...NW winds 35 to 45 kt, diminishing to 25 to 30 kt with gusts up to 35 kt in the afternoon. Seas 11 to 15 ft, subsiding to 8 to 11 ft in the afternoon. Wave Detail: W 15 ft at 10 seconds and W 6 ft at 6 seconds, becoming W 10 ft at 9 seconds and NW 7 ft at 7 seconds. .THU NIGHT...NW winds 20 to 25 kt with gusts up to 30 kt, diminishing to 10 to 15 kt after midnight. Seas 5 to 7 ft, subsiding to 3 to 5 ft after midnight. Wave Detail: N 7 ft at 7 seconds and SW 5 ft at 9 seconds, becoming W 4 ft at 7 seconds and W 1 foot at 4 seconds. .FRI...SW winds 20 to 25 kt with gusts up to 30 kt. Seas 3 to 5 ft. .FRI NIGHT AND SAT...SW winds 25 to 30 kt with gusts up to 35 kt. Seas 7 to 10 ft. Rain likely. .SAT NIGHT...NW winds 15 to 20 kt. Seas 5 to 7 ft. A chance of rain. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ256-042200- Coastal Waters from Montauk NY to Marthas Vineyard extending out to 20 nm South of Block Island- 405 AM EST Tue Nov 4 2025 ...GALE WARNING IN EFFECT THROUGH THIS EVENING... .TODAY...NW winds 25 to 30 kt. Gusts up to 45 kt this morning. Seas 7 to 10 ft. Wave Detail: W 8 ft at 6 seconds and SE 1 foot at 10 seconds. .TONIGHT...W winds 20 to 25 kt with gusts up to 35 kt, becoming NW 15 to 20 kt with gusts up to 25 kt after midnight. Seas 5 to 8 ft, subsiding to 4 to 6 ft after midnight. Wave Detail: W 6 ft at 6 seconds and S 4 ft at 9 seconds, becoming W 5 ft at 6 seconds and SE 1 foot at 9 seconds. .WED...W winds 10 to 15 kt with gusts up to 20 kt, becoming SW 25 to 30 kt in the afternoon. Seas 2 to 4 ft, building to 4 to 6 ft in the afternoon. Wave Detail: W 3 ft at 5 seconds and SE 1 foot at 9 seconds, becoming SW 6 ft at 6 seconds and SE 1 foot at 10 seconds. .WED NIGHT...SW winds 30 to 40 kt, becoming W 35 to 45 kt with gusts up to 50 kt after midnight. Seas 9 to 13 ft, building to 12 to 16 ft after midnight. Wave Detail: SW 13 ft at 9 seconds and W 2 ft at 5 seconds, becoming SW 15 ft at 9 seconds and NW 7 ft at 7 seconds. A chance of rain. .THU...NW winds 30 to 40 kt with gusts up to 45 kt, diminishing to 25 to 30 kt with gusts up to 35 kt in the afternoon. Seas 9 to 13 ft, subsiding to 7 to 10 ft in the afternoon. Wave Detail: SW 12 ft at 9 seconds and NW 8 ft at 7 seconds, becoming W 7 ft at 5 seconds and SW 6 ft at 9 seconds. .THU NIGHT...NW winds 20 to 25 kt with gusts up to 30 kt, diminishing to 10 to 15 kt after midnight. Seas 5 to 7 ft, subsiding to 3 to 5 ft after midnight. Wave Detail: NW 6 ft at 5 seconds and SW 4 ft at 9 seconds, becoming NW 4 ft at 5 seconds and SW 3 ft at 8 seconds. .FRI...SW winds 25 to 30 kt. Seas 4 to 6 ft. .FRI NIGHT...SW winds 25 to 30 kt with gusts up to 35 kt. Seas 8 to 11 ft. Rain likely. .SAT...SW winds 20 to 25 kt with gusts up to 30 kt. Seas 7 to 10 ft. Rain likely. .SAT NIGHT...NW winds 10 to 15 kt with gusts up to 20 kt. Seas 5 to 7 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. $$ ANZ232-042200- Nantucket Sound- 405 AM EST Tue Nov 4 2025 ...GALE WARNING IN EFFECT THROUGH THIS EVENING... .TODAY...W winds 25 to 30 kt with gusts up to 45 kt, diminishing to 20 to 25 kt with gusts up to 35 kt this afternoon. Seas 4 to 6 ft. Wave Detail: NW 4 ft at 6 seconds and SW 2 ft at 9 seconds. .TONIGHT...W winds 15 to 20 kt. Gusts up to 35 kt, decreasing to 25 kt after midnight. Seas 3 to 5 ft. Wave Detail: NW 4 ft at 6 seconds and SW 1 foot at 8 seconds. .WED...W winds 10 to 15 kt with gusts up to 20 kt, becoming SW 20 to 25 kt with gusts up to 30 kt in the afternoon. Seas 2 to 3 ft, building to 3 to 5 ft in the afternoon. Wave Detail: W 2 ft at 4 seconds and W 2 ft at 7 seconds, becoming SW 4 ft at 4 seconds and N 1 foot at 6 seconds. .WED NIGHT...SW winds 25 to 35 kt, becoming W 30 to 40 kt after midnight. Seas 5 to 7 ft, building to 6 to 9 ft after midnight. Wave Detail: SW 5 ft at 5 seconds and SW 5 ft at 8 seconds, becoming W 7 ft at 6 seconds and SW 4 ft at 10 seconds. A chance of rain. .THU...NW winds 30 to 40 kt with gusts up to 45 kt, diminishing to 25 to 30 kt in the afternoon. Seas 5 to 8 ft, subsiding to 4 to 6 ft in the afternoon. Wave Detail: W 7 ft at 6 seconds and SW 3 ft at 10 seconds, becoming NW 5 ft at 6 seconds and SW 2 ft at 9 seconds. A chance of rain in the morning. .THU NIGHT...NW winds 20 to 25 kt, diminishing to 10 to 15 kt after midnight. Seas 3 to 5 ft, subsiding to 2 to 3 ft after midnight. Wave Detail: N 4 ft at 5 seconds and SW 2 ft at 9 seconds, becoming NW 3 ft at 5 seconds and SW 1 foot at 9 seconds. .FRI...SW winds 20 to 25 kt. Seas 2 to 4 ft. .FRI NIGHT...SW winds 25 to 30 kt. Seas 4 to 6 ft. Rain likely. .SAT...SW winds 20 to 25 kt with gusts up to 30 kt. Seas 3 to 5 ft. Rain likely. .SAT NIGHT...NW winds 10 to 15 kt with gusts up to 20 kt. Seas 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. $$ ANZ233-042200- Vineyard Sound- 405 AM EST Tue Nov 4 2025 ...GALE WARNING IN EFFECT THROUGH THIS EVENING... .TODAY...W winds 25 to 30 kt, diminishing to 20 to 25 kt this afternoon. Gusts up to 40 kt. Seas 4 to 6 ft. Wave Detail: W 5 ft at 6 seconds and SW 2 ft at 9 seconds. .TONIGHT...W winds 15 to 20 kt, diminishing to 10 to 15 kt after midnight. Gusts up to 30 kt. Seas 3 to 5 ft. Wave Detail: SW 4 ft at 6 seconds and N 1 foot at 6 seconds. .WED...W winds 10 to 15 kt with gusts up to 20 kt, becoming SW 20 to 25 kt with gusts up to 30 kt in the afternoon. Seas 2 to 3 ft, building to 3 to 5 ft in the afternoon. Wave Detail: W 2 ft at 5 seconds and N 1 foot at 6 seconds, becoming SW 5 ft at 5 seconds and S 2 ft at 9 seconds. .WED NIGHT...SW winds 25 to 35 kt, becoming W 30 to 40 kt with gusts up to 45 kt after midnight. Seas 7 to 10 ft. Wave Detail: SW 10 ft at 9 seconds and W 4 ft at 6 seconds. A chance of rain. .THU...NW winds 25 to 35 kt with gusts up to 40 kt, diminishing to 20 to 25 kt with gusts up to 30 kt in the afternoon. Seas 6 to 9 ft, subsiding to 4 to 6 ft in the afternoon. Wave Detail: SW 9 ft at 9 seconds and W 5 ft at 6 seconds, becoming SW 6 ft at 9 seconds and NW 4 ft at 6 seconds. .THU NIGHT...NW winds 15 to 20 kt with gusts up to 25 kt, diminishing to 5 to 10 kt after midnight. Seas 2 to 4 ft. Wave Detail: SW 4 ft at 9 seconds and NW 3 ft at 5 seconds. .FRI...SW winds 20 to 25 kt with gusts up to 30 kt. Seas 3 to 5 ft. .FRI NIGHT...SW winds 25 to 30 kt. Seas 5 to 7 ft. Rain likely. .SAT...SW winds 20 to 25 kt with gusts up to 30 kt. Seas 4 to 6 ft. Rain likely. .SAT NIGHT...NW winds 10 to 15 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. $$ ANZ234-042200- Buzzards Bay- 405 AM EST Tue Nov 4 2025 ...GALE WARNING IN EFFECT THROUGH THIS EVENING... .TODAY...W winds 20 to 25 kt with gusts up to 40 kt. Seas 3 to 4 ft. Wave Detail: W 4 ft at 5 seconds and SW 2 ft at 8 seconds. .TONIGHT...W winds 15 to 20 kt, diminishing to 10 to 15 kt after midnight. Gusts up to 30 kt. Seas 2 to 3 ft. Wave Detail: SW 3 ft at 7 seconds and N 1 foot at 6 seconds. .WED...W winds 10 to 15 kt with gusts up to 20 kt, becoming SW 20 to 25 kt with gusts up to 30 kt in the afternoon. Seas around 2 ft, building to 3 to 5 ft in the afternoon. Wave Detail: W 2 ft at 5 seconds and N 1 foot at 6 seconds, becoming SW 5 ft at 5 seconds and N 1 foot at 6 seconds. .WED NIGHT...SW winds 25 to 30 kt with gusts up to 35 kt, becoming W 30 to 35 kt with gusts up to 45 kt after midnight. Seas 5 to 7 ft. Wave Detail: W 7 ft at 6 seconds and SE 1 foot at 12 seconds. A chance of rain. .THU...NW winds 25 to 30 kt with gusts up to 40 kt, diminishing to 20 to 25 kt with gusts up to 30 kt in the afternoon. Seas 4 to 6 ft. Wave Detail: SW 6 ft at 9 seconds and W 4 ft at 5 seconds. .THU NIGHT...NW winds 15 to 20 kt with gusts up to 25 kt, diminishing to 5 to 10 kt after midnight. Seas 2 to 3 ft. Wave Detail: SW 3 ft at 9 seconds and NW 2 ft at 6 seconds. .FRI...SW winds 20 to 25 kt with gusts up to 30 kt. Seas 2 to 4 ft. .FRI NIGHT...SW winds 25 to 30 kt. Seas 4 to 6 ft. Rain likely. .SAT...SW winds 20 to 25 kt with gusts up to 30 kt. Seas 3 to 5 ft. Rain likely. .SAT NIGHT...NW winds 10 to 15 kt. Seas 2 to 4 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ235-042200- Rhode Island Sound- 405 AM EST Tue Nov 4 2025 ...GALE WARNING IN EFFECT THROUGH THIS EVENING... .TODAY...W winds 25 to 30 kt with gusts up to 40 kt. Seas 5 to 7 ft. Wave Detail: SW 6 ft at 6 seconds and SE 1 foot at 10 seconds. .TONIGHT...W winds 20 to 25 kt, diminishing to 15 to 20 kt after midnight. Gusts up to 30 kt. Seas 3 to 5 ft. Wave Detail: W 4 ft at 5 seconds and S 2 ft at 9 seconds. .WED...W winds 10 to 15 kt with gusts up to 20 kt, becoming SW 25 to 30 kt in the afternoon. Seas 2 to 3 ft, building to 4 to 6 ft in the afternoon. Wave Detail: SW 3 ft at 6 seconds and SE 1 foot at 9 seconds, becoming SW 6 ft at 6 seconds and SE 2 ft at 10 seconds. .WED NIGHT...SW winds 25 to 35 kt, becoming W 30 to 40 kt with gusts up to 45 kt after midnight. Seas 7 to 10 ft, building to 9 to 12 ft after midnight. Wave Detail: SW 10 ft at 6 seconds and SE 1 foot at 11 seconds, becoming SW 12 ft at 9 seconds and W 6 ft at 7 seconds. A chance of rain. .THU...NW winds 25 to 35 kt. Seas 7 to 10 ft, subsiding to 5 to 7 ft in the afternoon. Wave Detail: SW 10 ft at 9 seconds and W 6 ft at 6 seconds, becoming NW 6 ft at 6 seconds and SW 5 ft at 9 seconds. .THU NIGHT...NW winds 15 to 20 kt with gusts up to 25 kt, diminishing to 10 to 15 kt after midnight. Seas 3 to 5 ft, subsiding to 2 to 3 ft after midnight. Wave Detail: SW 4 ft at 9 seconds and NW 3 ft at 6 seconds, becoming NW 2 ft at 5 seconds and SW 2 ft at 8 seconds. .FRI...SW winds 20 to 25 kt with gusts up to 30 kt. Seas 3 to 5 ft. .FRI NIGHT AND SAT...SW winds 25 to 30 kt, diminishing to 20 to 25 kt. Seas 6 to 9 ft. Rain likely. .SAT NIGHT...NW winds 10 to 15 kt with gusts up to 20 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. $$ ANZ237-042200- Block Island Sound- 405 AM EST Tue Nov 4 2025 ...GALE WARNING IN EFFECT THROUGH THIS EVENING... .TODAY...W winds 25 to 30 kt, becoming NW 20 to 25 kt this afternoon. Gusts up to 40 kt. Seas 4 to 6 ft. Wave Detail: W 5 ft at 5 seconds and S 2 ft at 9 seconds. .TONIGHT...W winds 15 to 20 kt, diminishing to 10 to 15 kt after midnight. Gusts up to 30 kt. Seas 3 to 5 ft. Wave Detail: W 3 ft at 5 seconds and S 2 ft at 9 seconds. .WED...W winds 10 to 15 kt with gusts up to 20 kt, becoming SW 20 to 25 kt with gusts up to 30 kt in the afternoon. Seas around 2 ft, building to 4 to 6 ft in the afternoon. Wave Detail: W 2 ft at 4 seconds and S 1 foot at 7 seconds, becoming S 5 ft at 6 seconds and SE 1 foot at 9 seconds. .WED NIGHT...SW winds 25 to 30 kt with gusts up to 35 kt, becoming W 30 to 40 kt with gusts up to 45 kt after midnight. Seas 5 to 8 ft, building to 7 to 10 ft after midnight. Wave Detail: SW 7 ft at 6 seconds and SE 1 foot at 10 seconds, becoming W 7 ft at 6 seconds and S 7 ft at 9 seconds. A chance of rain. .THU...NW winds 25 to 30 kt with gusts up to 40 kt, diminishing to 20 to 25 kt with gusts up to 30 kt in the afternoon. Seas 5 to 8 ft, subsiding to 4 to 6 ft in the afternoon. Wave Detail: W 7 ft at 6 seconds and S 5 ft at 10 seconds, becoming W 5 ft at 5 seconds and S 3 ft at 9 seconds. .THU NIGHT...NW winds 15 to 20 kt with gusts up to 25 kt, diminishing to 5 to 10 kt after midnight. Seas 2 to 4 ft. Wave Detail: NW 3 ft at 4 seconds and S 2 ft at 9 seconds. .FRI...SW winds 20 to 25 kt with gusts up to 30 kt. Seas 3 to 5 ft. .FRI NIGHT AND SAT...SW winds 25 to 30 kt, diminishing to 15 to 20 kt. Seas 5 to 8 ft. Rain likely. .SAT NIGHT...NW winds 10 to 15 kt with gusts up to 20 kt. Seas 4 to 6 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ230-042200- Boston Harbor- 405 AM EST Tue Nov 4 2025 ...GALE WARNING IN EFFECT THROUGH THIS EVENING... .TODAY...W winds 20 to 25 kt with gusts up to 40 kt. Waves around 2 ft. .TONIGHT...W winds 15 to 20 kt, diminishing to 10 to 15 kt after midnight. Gusts up to 25 kt. Waves around 2 ft. .WED...SW winds 10 to 15 kt. Gusts up to 20 kt in the afternoon. Waves around 2 ft. .WED NIGHT...SW winds 15 to 20 kt with gusts up to 25 kt, becoming W 25 to 30 kt with gusts up to 40 kt after midnight. Waves around 2 ft. Rain likely. .THU...NW winds 25 to 30 kt with gusts up to 40 kt, diminishing to 20 to 25 kt with gusts up to 30 kt in the afternoon. Waves around 2 ft. A chance of rain in the morning. .THU NIGHT...NW winds 15 to 20 kt, becoming W 5 to 10 kt after midnight. Waves around 2 ft in the evening, then 1 foot or less. .FRI...SW winds 15 to 20 kt with gusts up to 25 kt. Waves around 2 ft. .FRI NIGHT AND SAT...SW winds 15 to 20 kt, diminishing to 10 to 15 kt. Gusts up to 25 kt. Waves around 2 ft. Rain likely. .SAT 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. $$ ANZ236-042200- Narragansett Bay- 405 AM EST Tue Nov 4 2025 ...GALE WARNING IN EFFECT THROUGH THIS EVENING... .TODAY...NW winds 15 to 20 kt. Gusts up to 40 kt, decreasing to 30 kt this afternoon. Waves around 3 ft. .TONIGHT...W winds 10 to 15 kt, diminishing to 5 to 10 kt after midnight. Gusts up to 25 kt. Waves 2 to 3 ft. .WED...W winds 5 to 10 kt, becoming SW 20 to 25 kt with gusts up to 30 kt in the afternoon. Waves 2 to 4 ft. .WED NIGHT...SW winds 25 to 30 kt, becoming W with gusts up to 40 kt after midnight. Waves 4 to 6 ft. A chance of rain. .THU...NW winds 25 to 30 kt, diminishing to 20 to 25 kt in the afternoon. Waves 2 to 3 ft, except 4 to 6 ft at the bay entrance. .THU NIGHT...NW winds 10 to 15 kt with gusts up to 20 kt, diminishing to 5 to 10 kt after midnight. Waves 2 to 3 ft. .FRI...SW winds 20 to 25 kt with gusts up to 30 kt. Waves 2 to 4 ft. .FRI NIGHT...SW winds 20 to 25 kt with gusts up to 30 kt. Waves 4 to 6 ft. Rain likely. .SAT...SW winds 15 to 20 kt with gusts up to 25 kt. Waves 3 to 5 ft. Rain likely. .SAT NIGHT...NW winds 5 to 10 kt. Waves 2 to 3 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ 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