


Coastal Waters Forecast
Issued by NWS Boston, MA
Issued by NWS Boston, MA
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061 FZUS51 KBOX 220504 CWFBOX Coastal Waters Forecast for Massachusetts and Rhode Island National Weather Service Boston/Norton MA 104 AM EDT Fri Aug 22 2025 Coastal waters from the Merrimack River MA to Watch Hill RI out to 25 NM ANZ200-221800- 104 AM EDT Fri Aug 22 2025 .Synopsis for Massachusetts and Rhode Island coastal waters... Gusty NE winds increase to near 40 kts tonight into Fri morning as Hurricane Erin passes several hundred miles southeast of southern New England. Gale Warnings in effect through Friday evening. Dangerous marine conditions expected, especially over the south coastal waters. $$ ANZ250-221800- Coastal waters east of Ipswich Bay and the Stellwagen Bank National Marine Sanctuary- 104 AM EDT Fri Aug 22 2025 ...GALE WARNING IN EFFECT THROUGH THIS EVENING... .REST OF TONIGHT...NE winds 20 to 25 kt with gusts up to 35 kt. Seas 7 to 10 ft. Wave Detail: E 9 ft at 8 seconds and S 3 ft at 18 seconds. .FRI...N winds 20 to 25 kt, becoming NE 15 to 20 kt in the afternoon. Gusts up to 35 kt. Seas 9 to 12 ft. Wave Detail: E 9 ft at 9 seconds and SE 6 ft at 17 seconds. .FRI NIGHT...SW winds 5 to 10 kt. Seas 8 to 11 ft, subsiding to 7 to 9 ft after midnight. Wave Detail: E 8 ft at 11 seconds and SE 6 ft at 14 seconds, becoming E 8 ft at 12 seconds and SE 4 ft at 13 seconds. .SAT...S winds 10 to 15 kt. Gusts up to 25 kt in the afternoon. Seas 5 to 8 ft. Wave Detail: E 8 ft at 12 seconds and S 1 foot at 4 seconds. .SAT NIGHT AND SUN...S winds 15 to 20 kt with gusts up to 25 kt. Seas 4 to 6 ft. Wave Detail: E 6 ft at 11 seconds and S 4 ft at 4 seconds. .SUN NIGHT...S winds 15 to 20 kt, diminishing to 10 to 15 kt after midnight. Gusts up to 25 kt. Seas 3 to 5 ft. Wave Detail: S 4 ft at 4 seconds and E 4 ft at 11 seconds. A chance of showers after midnight. .MON AND MON NIGHT...S winds 10 to 15 kt, becoming SW. Gusts up to 20 kt. Seas 3 to 4 ft. A chance of showers. .TUE AND TUE NIGHT...W winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 4 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ251-221800- Massachusetts Bay and Ipswich Bay- 104 AM EDT Fri Aug 22 2025 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS EVENING... .REST OF TONIGHT...NE winds 20 to 25 kt with gusts up to 30 kt. Seas 4 to 6 ft. Wave Detail: E 6 ft at 7 seconds and SE 2 ft at 20 seconds. .FRI...N winds 20 to 25 kt, becoming NE 15 to 20 kt in the afternoon. Gusts up to 30 kt. Seas 5 to 8 ft. Wave Detail: E 7 ft at 8 seconds and SE 2 ft at 20 seconds. .FRI NIGHT...S winds 5 to 10 kt. Seas 5 to 7 ft. Wave Detail: E 7 ft at 11 seconds and SE 3 ft at 15 seconds. .SAT...SW winds 5 to 10 kt, becoming S 10 to 15 kt with gusts up to 20 kt in the afternoon. Seas 5 to 7 ft. Wave Detail: E 7 ft at 12 seconds and SE 1 foot at 12 seconds. .SAT NIGHT...S winds 15 to 20 kt, diminishing to 10 to 15 kt after midnight. Gusts up to 25 kt. Seas 4 to 6 ft. Wave Detail: E 6 ft at 11 seconds and S 3 ft at 5 seconds. .SUN...S winds 10 to 15 kt, increasing to 15 to 20 kt in the afternoon. Gusts up to 25 kt. Seas 3 to 4 ft. Wave Detail: S 4 ft at 4 seconds and E 4 ft at 11 seconds. .SUN NIGHT...S winds 15 to 20 kt, diminishing to 10 to 15 kt after midnight. Gusts up to 25 kt. Seas 2 to 4 ft. A chance of showers after midnight. .MON AND MON NIGHT...S winds 10 to 15 kt with gusts up to 20 kt, becoming SW. Seas 2 to 3 ft. A chance of showers. .TUE AND TUE NIGHT...W 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. $$ ANZ231-221800- Cape Cod Bay- 104 AM EDT Fri Aug 22 2025 ...GALE WARNING IN EFFECT THROUGH THIS EVENING... .REST OF TONIGHT...NE winds around 25 kt with gusts up to 35 kt. Seas 4 to 6 ft. Wave Detail: N 5 ft at 4 seconds and S 4 ft at 18 seconds. .FRI...N winds 20 to 25 kt, diminishing to 15 to 20 kt in the afternoon. Gusts up to 35 kt. Seas 5 to 7 ft. Wave Detail: N 5 ft at 6 seconds and S 3 ft at 18 seconds. .FRI NIGHT...W winds 5 to 10 kt with gusts up to 20 kt, becoming SW after midnight. Seas 3 to 5 ft. Wave Detail: N 4 ft at 6 seconds and SE 3 ft at 15 seconds. .SAT...SW winds 5 to 10 kt, becoming S 10 to 15 kt with gusts up to 20 kt in the afternoon. Seas 2 to 4 ft. Wave Detail: NE 3 ft at 8 seconds and S 2 ft at 3 seconds. .SAT NIGHT AND SUN...S winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 3 ft. Wave Detail: E 3 ft at 8 seconds and S 2 ft at 3 seconds. .SUN NIGHT...S winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Wave Detail: E 3 ft at 11 seconds and S 2 ft at 3 seconds. A chance of showers after midnight. .MON...S winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft. A chance of showers. .MON NIGHT...SW winds around 10 kt. Seas around 2 ft. A chance of showers. .TUE AND TUE NIGHT...W winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ254-221800- Coastal waters from Provincetown MA to Chatham MA to Nantucket MA out 20 nm- 104 AM EDT Fri Aug 22 2025 ...GALE WARNING IN EFFECT THROUGH THIS EVENING... .REST OF TONIGHT...NE winds 25 to 30 kt with gusts up to 40 kt. Seas 11 to 15 ft, except 15 to 19 ft S and E of Nantucket. Wave Detail: NE 12 ft at 8 seconds and S 11 ft at 17 seconds. .FRI...N winds 25 to 30 kt, diminishing to 20 to 25 kt in the afternoon. Gusts up to 40 kt. Seas 12 to 16 ft, subsiding to 10 to 14 ft in the afternoon. Wave Detail: NE 12 ft at 9 seconds and S 11 ft at 17 seconds, becoming NE 11 ft at 10 seconds and S 8 ft at 15 seconds. .FRI NIGHT...N winds 15 to 20 kt with gusts up to 25 kt, becoming W 5 to 10 kt after midnight. Seas 9 to 12 ft, subsiding to 7 to 10 ft after midnight. Wave Detail: E 10 ft at 12 seconds and SE 6 ft at 13 seconds, becoming E 9 ft at 12 seconds and SE 4 ft at 13 seconds. .SAT...SW winds 5 to 10 kt, becoming S 10 to 15 kt with gusts up to 20 kt in the afternoon. Seas 6 to 9 ft. Wave Detail: E 9 ft at 12 seconds and S 1 foot at 5 seconds. .SAT NIGHT...S winds 10 to 15 kt with gusts up to 20 kt. Seas 5 to 7 ft. Wave Detail: E 6 ft at 12 seconds and SW 2 ft at 6 seconds. .SUN...S winds 10 to 15 kt with gusts up to 20 kt. Seas 4 to 5 ft. Wave Detail: E 5 ft at 11 seconds and S 2 ft at 5 seconds. .SUN NIGHT...S winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 4 ft. A chance of showers after midnight. .MON AND MON NIGHT...S winds 10 to 15 kt with gusts up to 20 kt, becoming SW. Seas 3 to 4 ft. A chance of showers. .TUE AND TUE NIGHT...W 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. $$ ANZ255-221800- Coastal Waters extending out to 25 nm South of Marthas Vineyard and Nantucket- 104 AM EDT Fri Aug 22 2025 ...GALE WARNING IN EFFECT THROUGH THIS EVENING... .REST OF TONIGHT...NE winds 30 to 35 kt with gusts up to 40 kt. Seas 13 to 18 ft. Wave Detail: S 14 ft at 17 seconds and E 10 ft at 8 seconds. .FRI...N winds 25 to 35 kt with gusts up to 40 kt. Seas 12 to 16 ft, subsiding to 9 to 13 ft in the afternoon. Wave Detail: S 12 ft at 16 seconds and NE 10 ft at 9 seconds, becoming NE 10 ft at 10 seconds and SE 7 ft at 14 seconds. .FRI NIGHT...N winds 15 to 20 kt with gusts up to 25 kt, becoming W 5 to 10 kt after midnight. Seas 7 to 10 ft. Wave Detail: E 8 ft at 11 seconds and SE 5 ft at 12 seconds. .SAT...SW winds 5 to 10 kt, becoming S 10 to 15 kt in the afternoon. Seas 5 to 7 ft. Wave Detail: E 7 ft at 12 seconds and S 2 ft at 9 seconds. .SAT NIGHT...S winds 10 to 15 kt. Seas 4 to 6 ft. Wave Detail: E 6 ft at 13 seconds and SW 3 ft at 8 seconds. .SUN...S winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 5 ft. Wave Detail: E 4 ft at 11 seconds and SW 3 ft at 5 seconds. .SUN NIGHT...S winds 10 to 15 kt. Gusts up to 20 kt in the evening. Seas 3 to 4 ft. A chance of showers after midnight. .MON...S winds 10 to 15 kt. Seas 3 to 4 ft. A chance of showers. .MON NIGHT...SW winds 10 to 15 kt. Seas 3 to 5 ft. A chance of showers. .TUE AND TUE NIGHT...W winds 15 to 20 kt. Seas 4 to 6 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ256-221800- Coastal Waters from Montauk NY to Marthas Vineyard extending out to 20 nm South of Block Island- 104 AM EDT Fri Aug 22 2025 ...GALE WARNING IN EFFECT THROUGH THIS AFTERNOON... .REST OF TONIGHT...NE winds 30 to 35 kt with gusts up to 40 kt. Seas 15 to 18 ft. Wave Detail: S 13 ft at 17 seconds and NE 12 ft at 8 seconds. .FRI...N 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 12 to 16 ft, subsiding to 9 to 13 ft in the afternoon. Wave Detail: N 11 ft at 7 seconds and S 11 ft at 16 seconds, becoming NE 10 ft at 11 seconds and SE 7 ft at 13 seconds. .FRI NIGHT...SE winds 10 to 15 kt with gusts up to 20 kt, becoming SW after midnight. Seas 7 to 10 ft, subsiding to 5 to 8 ft after midnight. Wave Detail: E 9 ft at 12 seconds and SE 4 ft at 14 seconds, becoming E 7 ft at 12 seconds and S 2 ft at 10 seconds. .SAT...SW winds around 10 kt. Gusts up to 20 kt in the afternoon. Seas 5 to 7 ft. Wave Detail: E 6 ft at 12 seconds and S 2 ft at 10 seconds. .SAT NIGHT AND SUN...S winds 10 to 15 kt with gusts up to 20 kt. Seas 4 to 6 ft. Wave Detail: E 5 ft at 13 seconds and SW 3 ft at 5 seconds. .SUN NIGHT...S winds 10 to 15 kt. Gusts up to 20 kt in the evening. Seas 3 to 4 ft. Wave Detail: S 3 ft at 5 seconds and E 3 ft at 12 seconds. A chance of showers after midnight. .MON AND MON NIGHT...S winds 10 to 15 kt, becoming W. Seas 3 to 5 ft. A chance of showers. .TUE AND TUE NIGHT...W 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. $$ ANZ232-221800- Nantucket Sound- 104 AM EDT Fri Aug 22 2025 ...GALE WARNING IN EFFECT THROUGH THIS EVENING... .REST OF TONIGHT...NE winds 30 to 35 kt with gusts up to 40 kt. Seas 6 to 9 ft. Wave Detail: NE 6 ft at 6 seconds and S 3 ft at 17 seconds. .FRI...N winds 25 to 30 kt, diminishing to 20 to 25 kt in the afternoon. Gusts up to 40 kt. Seas 6 to 9 ft, subsiding to 5 to 7 ft in the afternoon. Wave Detail: N 6 ft at 6 seconds and S 3 ft at 17 seconds, becoming N 6 ft at 6 seconds and S 3 ft at 14 seconds. .FRI NIGHT...N winds 15 to 20 kt, becoming W 5 to 10 kt after midnight. Seas 4 to 6 ft. Wave Detail: NE 5 ft at 10 seconds and N 2 ft at 6 seconds. .SAT...SW winds 10 to 15 kt. Gusts up to 20 kt in the afternoon. Seas 3 to 5 ft. Wave Detail: E 4 ft at 12 seconds and SW 2 ft at 6 seconds. .SAT NIGHT AND SUN...S winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. Wave Detail: E 4 ft at 13 seconds and S 3 ft at 4 seconds. .SUN NIGHT...S winds 10 to 15 kt. Gusts up to 20 kt in the evening. Seas 2 to 3 ft. Wave Detail: S 3 ft at 4 seconds and E 2 ft at 11 seconds. A chance of showers after midnight. .MON...S winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. A chance of showers. .MON NIGHT...SW winds 10 to 15 kt. Seas 2 to 3 ft. A chance of showers. .TUE AND TUE NIGHT...W winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 4 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ233-221800- Vineyard Sound- 104 AM EDT Fri Aug 22 2025 ...GALE WARNING IN EFFECT THROUGH THIS AFTERNOON... .REST OF TONIGHT...NE winds 25 to 30 kt with gusts up to 35 kt. Seas 7 to 10 ft. Wave Detail: S 7 ft at 17 seconds and NE 4 ft at 5 seconds. .FRI...N winds 25 to 30 kt, diminishing to 20 to 25 kt in the afternoon. Seas 6 to 9 ft, subsiding to 5 to 7 ft in the afternoon. Wave Detail: S 6 ft at 16 seconds and N 4 ft at 6 seconds, becoming S 4 ft at 14 seconds and N 3 ft at 6 seconds. .FRI NIGHT...NE winds 10 to 15 kt with gusts up to 20 kt, becoming SW 5 to 10 kt after midnight. Seas 3 to 5 ft, subsiding to 2 to 3 ft after midnight. Wave Detail: SE 3 ft at 13 seconds and N 2 ft at 5 seconds, becoming E 2 ft at 9 seconds and SE 2 ft at 14 seconds. .SAT...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 4 seconds and SE 2 ft at 12 seconds. .SAT NIGHT AND SUN...S 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 13 seconds. .SUN NIGHT...S winds 10 to 15 kt. Gusts up to 20 kt in the evening. Seas 2 to 3 ft. Wave Detail: S 2 ft at 5 seconds and E 1 foot at 10 seconds. A chance of showers after midnight. .MON...S winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. A chance of showers. .MON NIGHT...SW winds 10 to 15 kt. Seas 2 to 3 ft. A chance of showers. .TUE AND TUE NIGHT...W winds 15 to 20 kt, diminishing to 10 to 15 kt. Gusts up to 25 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. $$ ANZ234-221800- Buzzards Bay- 104 AM EDT Fri Aug 22 2025 ...GALE WARNING IN EFFECT THROUGH THIS AFTERNOON... .REST OF TONIGHT...NE winds 25 to 30 kt with gusts up to 35 kt. Seas 5 to 7 ft. Wave Detail: S 5 ft at 17 seconds and NE 4 ft at 4 seconds. .FRI...N winds 20 to 25 kt with gusts up to 30 kt. Seas 4 to 6 ft. Wave Detail: N 4 ft at 5 seconds and S 4 ft at 16 seconds. .FRI NIGHT...SE winds 10 to 15 kt with gusts up to 20 kt, becoming SW 5 to 10 kt after midnight. Seas 2 to 4 ft. Wave Detail: E 3 ft at 10 seconds and SE 2 ft at 14 seconds. .SAT...SW winds 10 to 15 kt. Gusts up to 20 kt in the afternoon. Seas 2 to 3 ft. Wave Detail: SE 3 ft at 12 seconds and SW 2 ft at 4 seconds. .SAT NIGHT AND SUN...S winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 3 ft. Wave Detail: E 3 ft at 13 seconds and SW 2 ft at 4 seconds. .SUN NIGHT...S winds 10 to 15 kt. Gusts up to 20 kt in the evening. Seas 2 to 3 ft. Wave Detail: S 2 ft at 4 seconds and E 1 foot at 11 seconds. A chance of showers after midnight. .MON AND MON NIGHT...S winds 10 to 15 kt, becoming SW. Gusts up to 20 kt. Seas 2 to 3 ft. A chance of showers. .TUE AND TUE NIGHT...W winds 15 to 20 kt, diminishing to 10 to 15 kt. Gusts up to 25 kt. Seas 2 to 4 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ235-221800- Rhode Island Sound- 104 AM EDT Fri Aug 22 2025 ...GALE WARNING IN EFFECT THROUGH THIS AFTERNOON... .REST OF TONIGHT...N winds 25 to 30 kt with gusts up to 35 kt. Seas 10 to 14 ft. Wave Detail: S 13 ft at 17 seconds and NE 8 ft at 7 seconds. .FRI...N winds 25 to 30 kt, becoming NE 15 to 20 kt in the afternoon. Seas 9 to 13 ft, subsiding to 6 to 9 ft in the afternoon. Wave Detail: S 12 ft at 16 seconds and N 7 ft at 6 seconds, becoming SE 8 ft at 14 seconds and N 5 ft at 6 seconds. .FRI NIGHT...SE winds 10 to 15 kt, becoming SW after midnight. Seas 5 to 7 ft, subsiding to 3 to 5 ft after midnight. Wave Detail: E 6 ft at 8 seconds and SE 6 ft at 13 seconds, becoming SE 5 ft at 12 seconds and S 2 ft at 8 seconds. .SAT...SW winds 10 to 15 kt. Gusts up to 20 kt in the afternoon. Seas 3 to 4 ft. Wave Detail: SE 4 ft at 13 seconds and SW 3 ft at 6 seconds. .SAT NIGHT AND SUN...S winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. Wave Detail: SW 3 ft at 5 seconds and SE 3 ft at 13 seconds. .SUN NIGHT...S winds 10 to 15 kt. Gusts up to 20 kt in the evening. Seas 2 to 3 ft. Wave Detail: S 3 ft at 5 seconds and SE 1 foot at 8 seconds. A chance of showers after midnight. .MON AND MON NIGHT...S winds 10 to 15 kt with gusts up to 20 kt, becoming W. Seas 2 to 4 ft. A chance of showers. .TUE AND TUE NIGHT...W 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. $$ ANZ237-221800- Block Island Sound- 104 AM EDT Fri Aug 22 2025 ...GALE WARNING IN EFFECT THROUGH THIS AFTERNOON... .REST OF TONIGHT...N winds 25 to 30 kt with gusts up to 35 kt. Seas 10 to 14 ft. Wave Detail: S 12 ft at 17 seconds and E 8 ft at 8 seconds. .FRI...N winds 20 to 25 kt, becoming NE 10 to 15 kt in the afternoon. Gusts up to 30 kt. Seas 9 to 13 ft, subsiding to 7 to 10 ft in the afternoon. Wave Detail: S 11 ft at 16 seconds and E 7 ft at 8 seconds, becoming SE 9 ft at 14 seconds and E 4 ft at 9 seconds. .FRI NIGHT...S winds 5 to 10 kt, becoming SW after midnight. Seas 5 to 8 ft, subsiding to 4 to 6 ft after midnight. Wave Detail: E 7 ft at 12 seconds and SE 5 ft at 12 seconds, becoming SE 6 ft at 13 seconds and S 1 foot at 8 seconds. .SAT...SW winds 10 to 15 kt. Gusts up to 20 kt in the afternoon. Seas 3 to 5 ft. Wave Detail: SE 5 ft at 12 seconds and SW 2 ft at 9 seconds. .SAT NIGHT AND SUN...S winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 4 ft. Wave Detail: SE 4 ft at 13 seconds and S 3 ft at 5 seconds. .SUN NIGHT...S winds 10 to 15 kt. Gusts up to 20 kt in the evening. Seas 2 to 3 ft. Wave Detail: S 3 ft at 5 seconds and E 2 ft at 13 seconds. A chance of showers after midnight. .MON AND MON NIGHT...S winds around 10 kt, becoming W. Seas 2 to 3 ft. A chance of showers. .TUE...W winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. .TUE NIGHT...W winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 5 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ230-221800- Boston Harbor- 104 AM EDT Fri Aug 22 2025 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS AFTERNOON... .REST OF TONIGHT...N winds 15 to 20 kt with gusts up to 25 kt. Waves 2 to 3 ft. .FRI...N winds 15 to 20 kt, becoming NE 10 to 15 kt in the afternoon. Gusts up to 25 kt. Waves 2 to 3 ft, except 3 to 5 ft at the outer harbor entrance. .FRI NIGHT...S winds 5 to 10 kt. Waves 1 foot or less, except 2 to 4 ft at the outer harbor entrance. .SAT...SW winds 5 to 10 kt, becoming S 10 to 15 kt with gusts up to 20 kt in the afternoon. Waves 1 foot or less, then around 2 ft in the afternoon. At the outer harbor entrance, waves 2 to 4 ft. .SAT NIGHT AND SUN...S winds 15 to 20 kt with gusts up to 25 kt. Waves around 2 ft. .SUN NIGHT...S winds 10 to 15 kt. Gusts up to 25 kt in the evening. Waves around 2 ft. A chance of showers after midnight. .MON AND MON NIGHT...S winds 10 to 15 kt with gusts up to 20 kt, becoming SW. Waves around 2 ft. A chance of showers. .TUE AND TUE NIGHT...W winds 10 to 15 kt with gusts up 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. $$ ANZ236-221800- Narragansett Bay- 104 AM EDT Fri Aug 22 2025 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS AFTERNOON... .REST OF TONIGHT...N winds 15 to 20 kt with gusts up to 30 kt. Waves around 3 ft, except 6 to 9 ft at the bay entrance. .FRI...N winds 15 to 20 kt, becoming NE 10 to 15 kt in the afternoon. Gusts up to 25 kt. Waves 2 to 3 ft, except 5 to 8 ft at the bay entrance. .FRI NIGHT...S winds 5 to 10 kt, becoming SW after midnight. Waves 2 to 4 ft. .SAT...SW winds 5 to 10 kt, increasing to 10 to 15 kt with gusts up to 20 kt in the afternoon. Waves 2 to 3 ft. .SAT NIGHT AND SUN...S winds 10 to 15 kt with gusts up to 20 kt. Waves 2 to 3 ft. .SUN NIGHT...S winds 10 to 15 kt. Gusts up to 20 kt in the evening. Waves around 2 ft. A chance of showers after midnight. .MON AND MON NIGHT...S winds 10 to 15 kt with gusts up to 20 kt, becoming W 5 to 10 kt. Waves around 2 ft. A chance of showers. .TUE AND TUE NIGHT...W winds 10 to 15 kt with gusts up to 20 kt. Waves 2 to 3 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ 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