


Coastal Waters Forecast
Issued by NWS Boston, MA
Issued by NWS Boston, MA
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064 FZUS51 KBOX 050803 CWFBOX Coastal Waters Forecast for Massachusetts and Rhode Island National Weather Service Boston/Norton MA 403 AM EDT Sun Oct 5 2025 Coastal waters from the Merrimack River MA to Watch Hill RI out to 25 NM ANZ200-052100- 403 AM EDT Sun Oct 5 2025 .Synopsis for Massachusetts and Rhode Island coastal waters... High pres remains anchored over the waters south of Southern New England through early next week. Mainly light west winds are expected through the weekend, then SW winds pick up for early next week. $$ ANZ250-052100- Coastal waters east of Ipswich Bay and the Stellwagen Bank National Marine Sanctuary- 403 AM EDT Sun Oct 5 2025 .TODAY...N winds around 5 kt, becoming S this afternoon. Seas around 2 ft. Wave Detail: E 2 ft at 11 seconds. .TONIGHT...S winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: E 3 ft at 12 seconds and S 2 ft at 3 seconds. .MON...SW winds 10 to 15 kt. Gusts up to 20 kt in the afternoon. Seas 2 to 3 ft. Wave Detail: SW 2 ft at 3 seconds and E 2 ft at 11 seconds. .MON NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Wave Detail: SW 3 ft at 4 seconds and E 2 ft at 10 seconds. .TUE...SW winds 10 to 15 kt, increasing to 15 to 20 kt in the afternoon. Gusts up to 25 kt. Seas 2 to 4 ft. Wave Detail: SW 3 ft at 4 seconds and E 2 ft at 10 seconds. .TUE NIGHT...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to 4 ft. Wave Detail: SW 4 ft at 4 seconds and E 1 foot at 9 seconds. A chance of showers in the evening, then showers after midnight with vsby 1 to 3 NM. .WED...W winds 10 to 15 kt with gusts up to 25 kt. Seas 3 to 4 ft. Showers. Vsby 1 to 3 NM. .WED NIGHT...N winds 15 to 20 kt with gusts up to 30 kt. Seas 4 to 6 ft. A chance of showers. Vsby 1 to 3 NM. .THU...N winds 15 to 20 kt with gusts up to 30 kt. Seas 5 to 6 ft. .THU NIGHT...NE winds 5 to 10 kt. Seas 3 to 5 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ251-052100- Massachusetts Bay and Ipswich Bay- 403 AM EDT Sun Oct 5 2025 .TODAY...N winds around 5 kt, becoming SE this afternoon. Seas around 2 ft. Wave Detail: E 2 ft at 11 seconds. .TONIGHT...S winds 5 to 10 kt. Seas around 2 ft. Wave Detail: E 2 ft at 13 seconds and SE 1 foot at 3 seconds. .MON...SW winds 5 to 10 kt, becoming S 10 to 15 kt with gusts up to 20 kt in the afternoon. Seas around 2 ft. Wave Detail: S 2 ft at 3 seconds and E 2 ft at 12 seconds. .MON NIGHT...SW winds 10 to 15 kt. Gusts up to 20 kt in the evening. Seas around 2 ft. Wave Detail: S 2 ft at 3 seconds and E 2 ft at 11 seconds. .TUE...SW winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 3 ft. Wave Detail: S 3 ft at 3 seconds and E 1 foot at 10 seconds. .TUE NIGHT...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 3 ft. Wave Detail: SW 3 ft at 4 seconds and E 1 foot at 10 seconds. A chance of showers in the evening, then showers after midnight with vsby 1 to 3 NM. .WED...NW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Showers. Vsby 1 to 3 NM. .WED NIGHT...N winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to 5 ft. A chance of showers. .THU...N winds 10 to 15 kt with gusts up to 25 kt. Seas 3 to 5 ft. .THU NIGHT...N winds 5 to 10 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. $$ ANZ231-052100- Cape Cod Bay- 403 AM EDT Sun Oct 5 2025 .TODAY...NW winds around 5 kt, becoming S around 5 kt this afternoon. Seas around 2 ft this morning, then 1 foot or less. Wave Detail: SW 1 foot at 2 seconds and E 1 foot at 10 seconds, becoming SW 1 foot at 2 seconds and E 1 foot at 11 seconds. .TONIGHT...S winds 5 to 10 kt. Seas around 2 ft. Wave Detail: E 2 ft at 12 seconds and S 1 foot at 2 seconds. .MON...SW winds 5 to 10 kt, increasing to 10 to 15 kt with gusts up to 20 kt in the afternoon. Seas around 2 ft. Wave Detail: SW 1 foot at 2 seconds and E 1 foot at 8 seconds. .MON NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft. Wave Detail: SW 1 foot at 3 seconds and E 1 foot at 9 seconds. .TUE...SW winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 4 ft. Wave Detail: SW 2 ft at 3 seconds and E 1 foot at 10 seconds. .TUE NIGHT...SW winds around 15 kt with gusts up to 25 kt. Seas 3 to 4 ft. Wave Detail: SW 2 ft at 3 seconds and E 1 foot at 10 seconds. Showers likely after midnight with vsby 1 to 3 NM. .WED...W winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Showers. Vsby 1 to 3 NM. .WED NIGHT...N winds 15 to 20 kt with gusts up to 30 kt. Seas 3 to 5 ft. A chance of showers. .THU...N winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to 5 ft. .THU NIGHT...NE winds 5 to 10 kt. Seas 2 to 4 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ254-052100- Coastal waters from Provincetown MA to Chatham MA to Nantucket MA out 20 nm- 403 AM EDT Sun Oct 5 2025 .TODAY...SW winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: E 3 ft at 14 seconds and SW 1 foot at 4 seconds. Patchy fog. Vsby 1 NM or less. .TONIGHT...SW winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: E 3 ft at 13 seconds and SW 1 foot at 3 seconds. Patchy fog after midnight with vsby 1 NM or less. .MON...SW winds 10 to 15 kt. Gusts up to 20 kt in the afternoon. Seas 2 to 3 ft. Wave Detail: SW 2 ft at 3 seconds and E 2 ft at 11 seconds. Patchy fog. Vsby 1 NM or less, increasing to 1 to 3 NM in the afternoon. .MON NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Wave Detail: SW 2 ft at 4 seconds and E 2 ft at 10 seconds. Patchy fog in the evening with vsby 1 to 3 NM. .TUE...SW winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 3 ft. Wave Detail: S 3 ft at 4 seconds and E 2 ft at 10 seconds. .TUE NIGHT...SW winds around 15 kt with gusts up to 25 kt. Seas 3 to 4 ft. Wave Detail: SW 3 ft at 4 seconds and E 2 ft at 9 seconds. A chance of showers after midnight. .WED...W winds around 15 kt with gusts up to 20 kt. Seas 3 to 5 ft. Showers. Vsby 1 to 3 NM. .WED NIGHT...N winds 15 to 20 kt with gusts up to 30 kt. Seas 4 to 6 ft. A chance of showers. Vsby 1 to 3 NM. .THU...N winds 15 to 20 kt with gusts up to 30 kt. Seas 5 to 7 ft. .THU NIGHT...NE 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. $$ ANZ255-052100- Coastal Waters extending out to 25 nm South of Marthas Vineyard and Nantucket- 403 AM EDT Sun Oct 5 2025 .TODAY...SW winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: SE 2 ft at 12 seconds and SW 1 foot at 4 seconds. Patchy fog this afternoon with vsby 1 NM or less. .TONIGHT...SW winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: E 2 ft at 13 seconds and SW 1 foot at 4 seconds. Patchy fog after midnight with vsby 1 NM or less. .MON...SW winds around 10 kt. Seas 2 to 3 ft. Wave Detail: SW 2 ft at 3 seconds and E 2 ft at 11 seconds. Patchy fog. Vsby 1 NM or less, increasing to 1 to 3 NM in the afternoon. .MON NIGHT...SW winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: SW 2 ft at 4 seconds and E 2 ft at 10 seconds. Patchy fog in the evening with vsby 1 to 3 NM. .TUE...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Wave Detail: SW 3 ft at 4 seconds and E 2 ft at 10 seconds. .TUE NIGHT...SW winds 15 to 20 kt. Seas 3 to 5 ft. Wave Detail: SW 4 ft at 5 seconds and E 1 foot at 9 seconds. A chance of showers after midnight. .WED...W winds 15 to 20 kt. Seas 4 to 6 ft. Showers. Vsby 1 to 3 NM. .WED NIGHT...N winds 20 to 25 kt with gusts up to 30 kt. Seas 5 to 7 ft. Showers likely. Vsby 1 to 3 NM. .THU...N winds 20 to 25 kt with gusts up to 30 kt. Seas 5 to 7 ft. .THU NIGHT...NE winds 15 to 20 kt. Seas 3 to 5 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ256-052100- Coastal Waters from Montauk NY to Marthas Vineyard extending out to 20 nm South of Block Island- 403 AM EDT Sun Oct 5 2025 .TODAY...SW winds around 5 kt, increasing to 5 to 10 kt this afternoon. Seas 2 to 3 ft. Wave Detail: SE 3 ft at 12 seconds and SW 1 foot at 4 seconds. .TONIGHT...SW winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: SW 2 ft at 3 seconds and SE 2 ft at 14 seconds. Patchy fog after midnight with vsby 1 NM or less. .MON...SW winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: SW 2 ft at 3 seconds and E 2 ft at 12 seconds. Patchy fog. Vsby 1 NM or less, increasing to 1 to 3 NM in the afternoon. .MON NIGHT...SW winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: SW 2 ft at 4 seconds and E 2 ft at 11 seconds. Patchy fog in the evening with vsby 1 to 3 NM. .TUE...SW winds 10 to 15 kt with gusts up to 20 kt. Seas around 3 ft. Wave Detail: SW 3 ft at 4 seconds and SE 2 ft at 10 seconds. .TUE NIGHT...SW winds 15 to 20 kt. Seas 3 to 5 ft. Wave Detail: SW 4 ft at 5 seconds and SE 2 ft at 10 seconds. Showers likely after midnight with vsby 1 to 3 NM. .WED...W winds 15 to 20 kt. Seas 4 to 6 ft. Showers. Vsby 1 to 3 NM. .WED NIGHT...N winds 20 to 25 kt with gusts up to 30 kt. Seas 5 to 7 ft. A chance of showers. Vsby 1 to 3 NM. .THU...NE winds 20 to 25 kt with gusts up to 30 kt. Seas 5 to 7 ft. .THU NIGHT...NE winds 10 to 15 kt with gusts up to 20 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. $$ ANZ232-052100- Nantucket Sound- 403 AM EDT Sun Oct 5 2025 .TODAY...SW winds around 5 kt, increasing to 5 to 10 kt this afternoon. Seas around 2 ft. Wave Detail: SW 1 foot at 4 seconds and E 1 foot at 12 seconds. .TONIGHT...SW winds 5 to 10 kt. Seas around 2 ft. Wave Detail: SW 1 foot at 3 seconds and E 1 foot at 14 seconds. Patchy fog after midnight with vsby 1 NM or less. .MON...SW winds 5 to 10 kt, increasing to 10 to 15 kt with gusts up to 20 kt in the afternoon. Seas around 2 ft. Wave Detail: SW 2 ft at 3 seconds and E 1 foot at 12 seconds. Patchy fog. Vsby 1 NM or less, increasing to 1 to 3 NM in the afternoon. .MON NIGHT...SW winds 10 to 15 kt. Seas around 2 ft. Wave Detail: SW 2 ft at 3 seconds and E 1 foot at 11 seconds. Patchy fog in the evening with vsby 1 to 3 NM. .TUE...SW winds 10 to 15 kt, increasing to 15 to 20 kt in the afternoon. Seas 2 to 3 ft. Wave Detail: SW 3 ft at 4 seconds and E 1 foot at 10 seconds. .TUE NIGHT...SW winds 15 to 20 kt. Seas 2 to 4 ft. Wave Detail: SW 3 ft at 4 seconds and E 1 foot at 10 seconds. Showers likely after midnight. .WED...W winds 15 to 20 kt. Seas 2 to 4 ft. Showers. Vsby 1 to 3 NM. .WED NIGHT...N winds 20 to 25 kt with gusts up to 30 kt. Seas 2 to 4 ft. A chance of showers. Vsby 1 to 3 NM. .THU AND THU NIGHT...N winds 20 to 25 kt with gusts up to 30 kt, becoming NE 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ233-052100- Vineyard Sound- 403 AM EDT Sun Oct 5 2025 .TODAY...NW winds around 5 kt, becoming SW this afternoon. Seas around 2 ft this morning, then 1 foot or less. Wave Detail: SW 1 foot at 4 seconds and SE 1 foot at 11 seconds, becoming SW 1 foot at 4 seconds and SE 1 foot at 12 seconds. .TONIGHT...SW winds 5 to 10 kt. Seas 1 foot or less, then around 2 ft after midnight. Wave Detail: SW 1 foot at 3 seconds and SE 1 foot at 12 seconds. Patchy fog after midnight with vsby 1 NM or less. .MON...SW winds 5 to 10 kt, increasing to 10 to 15 kt with gusts up to 20 kt in the afternoon. Seas around 2 ft. Wave Detail: SW 2 ft at 4 seconds and SE 1 foot at 11 seconds. Patchy fog. Vsby 1 NM or less, increasing to 1 to 3 NM in the afternoon. .MON NIGHT...SW winds 10 to 15 kt. Seas around 2 ft. Wave Detail: SW 2 ft at 4 seconds and SE 1 foot at 10 seconds. Patchy fog in the evening with vsby 1 to 3 NM. .TUE...SW winds 10 to 15 kt, increasing to 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 10 seconds. .TUE NIGHT...SW winds 15 to 20 kt. Seas 2 to 4 ft. Wave Detail: SW 3 ft at 5 seconds and SE 1 foot at 10 seconds. Showers likely after midnight with vsby 1 to 3 NM. .WED AND WED NIGHT...W winds 15 to 20 kt, becoming N. Gusts up to 25 kt. Seas 2 to 4 ft. Showers. Vsby 1 to 3 NM. .THU AND THU NIGHT...N winds 15 to 20 kt with gusts up to 25 kt, becoming NE 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. $$ ANZ234-052100- Buzzards Bay- 403 AM EDT Sun Oct 5 2025 .TODAY...NW winds around 5 kt, becoming S this afternoon. Seas 1 foot or less. Wave Detail: SW 1 foot at 4 seconds and SE 1 foot at 11 seconds. .TONIGHT...SW winds 5 to 10 kt. Seas 1 foot or less. Wave Detail: SW 1 foot at 3 seconds and SE 1 foot at 12 seconds. Patchy fog after midnight with vsby 1 NM or less. .MON...SW winds 5 to 10 kt, increasing to 10 to 15 kt with gusts up to 20 kt in the afternoon. Seas 1 foot or less, then 2 to 3 ft in the afternoon. Wave Detail: SW 1 foot at 3 seconds and SE 1 foot at 11 seconds, becoming SW 2 ft at 3 seconds and SE 1 foot at 10 seconds. Patchy fog. Vsby 1 NM or less, increasing to 1 to 3 NM in the afternoon. .MON NIGHT...SW winds 10 to 15 kt. Gusts up to 20 kt in the evening. Seas 2 to 3 ft. Wave Detail: SW 2 ft at 4 seconds and SE 1 foot at 10 seconds. Patchy fog in the evening with vsby 1 to 3 NM. .TUE...SW winds 10 to 15 kt, increasing to 15 to 20 kt in the afternoon. Gusts up to 25 kt. Seas 2 to 4 ft. Wave Detail: SW 3 ft at 4 seconds and SE 1 foot at 10 seconds. .TUE NIGHT...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to 4 ft. Wave Detail: SW 3 ft at 5 seconds and SE 1 foot at 10 seconds. Showers likely after midnight with vsby 1 to 3 NM. .WED...W winds 15 to 20 kt. Seas 2 to 3 ft. Showers. Vsby 1 to 3 NM. .WED NIGHT...N winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 3 ft. A chance of showers. .THU AND THU NIGHT...N winds 15 to 20 kt with gusts up to 25 kt, becoming NE 10 to 15 kt. Seas 2 to 3 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ235-052100- Rhode Island Sound- 403 AM EDT Sun Oct 5 2025 .TODAY...NW winds around 5 kt, becoming S this afternoon. Seas around 2 ft. Wave Detail: SE 2 ft at 12 seconds and SW 1 foot at 4 seconds. .TONIGHT...SW winds 5 to 10 kt. Seas around 2 ft. Wave Detail: S 2 ft at 3 seconds and SE 2 ft at 13 seconds. Patchy fog after midnight with vsby 1 NM or less. .MON...SW winds 5 to 10 kt, increasing to 10 to 15 kt with gusts up to 20 kt in the afternoon. Seas around 2 ft. Wave Detail: SW 2 ft at 3 seconds and SE 2 ft at 11 seconds. Patchy fog. Vsby 1 NM or less, increasing to 1 to 3 NM in the afternoon. .MON NIGHT...SW winds 10 to 15 kt. Seas around 2 ft. Wave Detail: SW 2 ft at 4 seconds and SE 1 foot at 10 seconds. Patchy fog in the evening with vsby 1 to 3 NM. .TUE...SW winds 10 to 15 kt, increasing to 15 to 20 kt in the afternoon. Gusts up to 25 kt. Seas 2 to 3 ft. Wave Detail: SW 3 ft at 4 seconds and SE 1 foot at 10 seconds. .TUE NIGHT...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to 5 ft. Wave Detail: SW 4 ft at 5 seconds and SE 1 foot at 10 seconds. Showers likely after midnight with vsby 1 to 3 NM. .WED...W winds 15 to 20 kt. Seas 3 to 5 ft. Showers. Vsby 1 to 3 NM. .WED NIGHT...N winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to 5 ft. A chance of showers. .THU...N winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to 5 ft. .THU NIGHT...NE 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. $$ ANZ237-052100- Block Island Sound- 403 AM EDT Sun Oct 5 2025 .TODAY...NE winds around 5 kt, becoming S this afternoon. Seas around 2 ft. Wave Detail: SE 2 ft at 13 seconds and SW 1 foot at 4 seconds. .TONIGHT...SW winds 5 to 10 kt. Seas around 2 ft. Wave Detail: SE 2 ft at 14 seconds and S 1 foot at 3 seconds. Patchy fog after midnight with vsby 1 NM or less. .MON...SW winds 5 to 10 kt, increasing to 10 to 15 kt in the afternoon. Seas around 2 ft. Wave Detail: SW 2 ft at 3 seconds and SE 2 ft at 12 seconds. Patchy fog. Vsby 1 NM or less, increasing to 1 to 3 NM in the afternoon. .MON NIGHT...SW winds 10 to 15 kt. Seas around 2 ft. Wave Detail: SW 2 ft at 3 seconds and SE 2 ft at 11 seconds. Patchy fog in the evening with vsby 1 to 3 NM. .TUE...SW winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 3 ft. Wave Detail: SW 3 ft at 4 seconds and SE 1 foot at 10 seconds. .TUE NIGHT...SW winds 15 to 20 kt. Seas 3 to 5 ft. Wave Detail: SW 3 ft at 4 seconds and SE 1 foot at 10 seconds. A chance of showers in the evening, then showers likely after midnight with vsby 1 to 3 NM. .WED...W winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. Showers. Vsby 1 to 3 NM. .WED NIGHT...N winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to 5 ft. A chance of showers. .THU...NE winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to 5 ft. .THU NIGHT...NE winds 5 to 10 kt. Seas 2 to 4 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ230-052100- Boston Harbor- 403 AM EDT Sun Oct 5 2025 .TODAY...N winds around 5 kt, becoming SE this afternoon. Waves 1 foot or less. .TONIGHT...S winds 5 to 10 kt. Waves 1 foot or less. .MON...SW winds 5 to 10 kt, increasing to 10 to 15 kt in the afternoon. Waves 1 foot or less, then around 2 ft in the afternoon. .MON NIGHT...SW winds 10 to 15 kt. Waves around 2 ft. .TUE...SW winds 10 to 15 kt, increasing to 15 to 20 kt in the afternoon. Gusts up to 25 kt. Waves around 2 ft. .TUE NIGHT...SW winds 15 to 20 kt with gusts up to 25 kt. Waves around 2 ft. A chance of showers in the evening, then showers after midnight with vsby 1 to 3 NM. .WED...NW winds 10 to 15 kt with gusts up to 20 kt. Waves around 2 ft. Showers. Vsby 1 to 3 NM. .WED NIGHT...N winds 10 to 15 kt with gusts up to 20 kt. Waves around 2 ft. A chance of showers. .THU AND THU NIGHT...N winds 10 to 15 kt with gusts up to 20 kt, diminishing to 5 to 10 kt. Waves around 2 ft, then 1 foot or less. 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. $$ ANZ236-052100- Narragansett Bay- 403 AM EDT Sun Oct 5 2025 .TODAY...N winds around 5 kt, becoming S this afternoon. Waves around 2 ft this morning, then 1 foot or less. .TONIGHT...SW winds 5 to 10 kt. Waves 1 foot or less. Patchy fog after midnight with vsby 1 NM or less. .MON...SW winds 5 to 10 kt, increasing to 10 to 15 kt with gusts up to 20 kt in the afternoon. Waves around 2 ft. Patchy fog in the morning with vsby 1 NM or less. .MON NIGHT...SW winds 10 to 15 kt. Waves around 2 ft. .TUE...SW winds 10 to 15 kt, increasing to 15 to 20 kt in the afternoon. Gusts up to 25 kt. Waves 2 to 3 ft. .TUE NIGHT...SW winds around 15 kt with gusts up to 20 kt. Waves 2 to 3 ft. A chance of showers in the evening, then showers likely after midnight with vsby 1 to 3 NM. .WED...W winds 10 to 15 kt with gusts up to 20 kt. Waves 2 to 3 ft. Showers. Vsby 1 to 3 NM. .WED NIGHT...N winds 10 to 15 kt with gusts up to 20 kt. Waves 2 to 3 ft. A chance of showers. .THU AND THU NIGHT...N winds 10 to 15 kt with gusts up to 20 kt, becoming NE 5 to 10 kt. Waves 2 to 3 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ 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