FZUS51 KBOX 111707 CWFBOX Coastal Waters Forecast for Massachusetts and Rhode Island National Weather Service Boston/Norton MA 107 PM EDT Wed Mar 11 2026 Coastal waters from the Merrimack River MA to Watch Hill RI out to 25 NM ANZ200-120600- 107 PM EDT Wed Mar 11 2026 .Synopsis for Massachusetts and Rhode Island coastal waters... A backdoor cold front will push southward into southern New England today, before retreating back north tonight. A stronger cold front will move through the region Thursday. High pres will build S of the waters Fri. A warm front will lift N into the waters Fri evening followed by a cold front passage early Sat. High pres will build over the waters Sat night then move offshore Sun. $$ ANZ250-120600- Coastal waters east of Ipswich Bay and the Stellwagen Bank National Marine Sanctuary- 107 PM EDT Wed Mar 11 2026 ...SMALL CRAFT ADVISORY IN EFFECT FROM 8 PM EDT THIS EVENING THROUGH THURSDAY AFTERNOON... .THIS AFTERNOON...SE winds 5 to 10 kt. Seas 2 to 4 ft. Wave Detail: SE 3 ft at 7 seconds. Patchy fog. Vsby 1 NM or less. .TONIGHT...S winds 20 to 25 kt with gusts up to 30 kt. Seas 4 to 6 ft. Wave Detail: SW 5 ft at 5 seconds and NE 3 ft at 6 seconds. Patchy fog. Vsby 1 NM or less. .THU...SW winds 20 to 25 kt, becoming W 15 to 20 kt in the afternoon. Gusts up to 30 kt. Seas 5 to 7 ft. Wave Detail: SW 5 ft at 5 seconds and SE 4 ft at 7 seconds. A chance of showers. Patchy fog in the morning with vsby 1 NM or less. .THU NIGHT...W winds 20 to 25 kt with gusts up to 30 kt. Seas 4 to 6 ft. Wave Detail: W 5 ft at 6 seconds and SE 3 ft at 8 seconds. A chance of showers in the evening. .FRI...W winds 15 to 20 kt, becoming SW in the afternoon. Gusts up to 25 kt. Seas 3 to 5 ft. Wave Detail: SW 4 ft at 5 seconds and SE 3 ft at 10 seconds. .FRI NIGHT...S winds 20 to 25 kt with gusts up to 30 kt. Seas 5 to 7 ft. Wave Detail: S 6 ft at 6 seconds and SE 4 ft at 10 seconds. A chance of rain. .SAT...W winds 25 to 30 kt. Seas 5 to 7 ft. A chance of rain. .SAT NIGHT...W winds 20 to 25 kt with gusts up to 30 kt. Seas 4 to 6 ft. .SUN...NE winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. .SUN NIGHT...SE winds 25 to 30 kt with gusts up to 35 kt. Seas 5 to 7 ft. Rain likely. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ251-120600- Massachusetts Bay and Ipswich Bay- 107 PM EDT Wed Mar 11 2026 .THIS AFTERNOON...E winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: NE 3 ft at 5 seconds and S 1 foot at 6 seconds. Patchy fog. Vsby 1 NM or less. .TONIGHT...S winds 15 to 20 kt, increasing to 20 to 25 kt after midnight. Seas 2 to 4 ft. Wave Detail: SW 4 ft at 5 seconds and NE 3 ft at 6 seconds. Patchy fog. A chance of showers after midnight. Vsby 1 NM or less. .THU...SW winds around 20 kt, becoming W in the afternoon. Gusts up to 25 kt. Seas 3 to 4 ft. Wave Detail: SW 4 ft at 5 seconds and NE 2 ft at 7 seconds. A chance of showers. Patchy fog in the morning with vsby 1 NM or less. .THU NIGHT...W winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 3 ft. Wave Detail: SW 3 ft at 5 seconds and E 1 foot at 8 seconds. A chance of showers in the evening. .FRI...W winds 10 to 15 kt, becoming SW 15 to 20 kt in the afternoon. Gusts up to 25 kt. Seas 2 to 3 ft. Wave Detail: NW 3 ft at 5 seconds and S 3 ft at 6 seconds. .FRI NIGHT...S winds 20 to 25 kt. Seas 3 to 4 ft. Wave Detail: S 4 ft at 4 seconds and N 1 foot at 5 seconds. A chance of rain. .SAT...W winds 25 to 30 kt. Seas 3 to 4 ft. A chance of rain. .SAT NIGHT...W winds 20 to 25 kt with gusts up to 30 kt. Seas 2 to 4 ft. .SUN...NE winds 10 to 15 kt. Seas around 2 ft. .SUN NIGHT...SE winds 25 to 30 kt with gusts up to 35 kt. Seas 4 to 6 ft. Rain likely. 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. $$ ANZ231-120600- Cape Cod Bay- 107 PM EDT Wed Mar 11 2026 .THIS AFTERNOON...S winds 5 to 10 kt. Seas around 2 ft. Wave Detail: NE 1 foot at 4 seconds and S 1 foot at 4 seconds. Patchy fog. Vsby 1 NM or less. .TONIGHT...S winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 4 ft. Wave Detail: S 3 ft at 4 seconds and NE 2 ft at 7 seconds. Patchy fog. Vsby 1 NM or less. .THU...SW winds 15 to 20 kt, becoming W in the afternoon. Gusts up to 25 kt. Seas 2 to 4 ft. Wave Detail: SW 3 ft at 5 seconds and SE 2 ft at 8 seconds. A chance of showers. Patchy fog in the morning with vsby 1 NM or less. .THU NIGHT...W winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 3 ft. Wave Detail: NW 3 ft at 4 seconds and E 2 ft at 7 seconds. A chance of showers in the evening. .FRI...W winds 10 to 15 kt, becoming SW 15 to 20 kt in the afternoon. Gusts up to 25 kt. Seas 2 to 3 ft. Wave Detail: N 3 ft at 5 seconds and SW 2 ft at 8 seconds. .FRI NIGHT...S winds 15 to 20 kt, becoming SW 20 to 25 kt after midnight. Gusts up to 30 kt. Seas 3 to 4 ft. Wave Detail: S 4 ft at 4 seconds and NW 2 ft at 5 seconds. A chance of rain. .SAT...W winds 20 to 25 kt with gusts up to 30 kt. Seas 3 to 4 ft. A chance of rain. .SAT NIGHT...W winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 4 ft. .SUN...NE winds 5 to 10 kt. Seas around 2 ft. .SUN NIGHT...SE winds 25 to 30 kt with gusts up to 35 kt. Seas 3 to 5 ft. Rain likely. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ254-120600- Coastal waters from Provincetown MA to Chatham MA to Nantucket MA out 20 nm- 107 PM EDT Wed Mar 11 2026 ...SMALL CRAFT ADVISORY IN EFFECT FROM 8 PM EDT THIS EVENING THROUGH THURSDAY AFTERNOON... .THIS AFTERNOON...S winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: S 2 ft at 6 seconds and E 2 ft at 9 seconds. Patchy fog. Vsby 1 NM or less. .TONIGHT...S winds 20 to 25 kt with gusts up to 30 kt. Seas 3 to 5 ft, building to 5 to 7 ft after midnight. Wave Detail: S 5 ft at 5 seconds and NE 2 ft at 6 seconds, becoming S 7 ft at 7 seconds and NE 2 ft at 7 seconds. Patchy fog in the evening, then patchy dense fog after midnight. Vsby 1 NM or less. .THU...SW winds 20 to 25 kt, becoming W 15 to 20 kt in the afternoon. Gusts up to 30 kt. Seas 5 to 8 ft. Wave Detail: S 8 ft at 7 seconds and NE 1 foot at 7 seconds. Patchy fog in the morning. A chance of showers in the afternoon. Vsby 1 NM or less in the morning. .THU NIGHT...NW winds 20 to 25 kt. Seas 4 to 6 ft. Wave Detail: S 5 ft at 8 seconds and NW 4 ft at 4 seconds. A chance of rain and snow in the evening. .FRI...W winds 15 to 20 kt, becoming SW in the afternoon. Gusts up to 25 kt. Seas 4 to 6 ft, subsiding to 3 to 4 ft in the afternoon. Wave Detail: W 4 ft at 7 seconds and S 4 ft at 9 seconds, becoming S 4 ft at 9 seconds and N 3 ft at 5 seconds. .FRI NIGHT...S winds 20 to 25 kt with gusts up to 30 kt. Seas 3 to 5 ft, building to 5 to 7 ft after midnight. Wave Detail: S 5 ft at 5 seconds and SE 3 ft at 9 seconds, becoming S 7 ft at 7 seconds and SE 2 ft at 9 seconds. A chance of rain. .SAT...W winds 25 to 30 kt. Seas 5 to 7 ft, except 8 to 11 ft S and E of Nantucket. A chance of rain. .SAT NIGHT...NW winds 20 to 25 kt with gusts up to 30 kt. Seas 5 to 7 ft. .SUN...NE winds 10 to 15 kt. Seas 3 to 5 ft. .SUN NIGHT...SE winds 25 to 30 kt with gusts up to 35 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. $$ ANZ255-120600- Coastal Waters extending out to 25 nm South of Marthas Vineyard and Nantucket- 107 PM EDT Wed Mar 11 2026 ...SMALL CRAFT ADVISORY IN EFFECT FROM 8 PM EDT THIS EVENING THROUGH THURSDAY AFTERNOON... .THIS AFTERNOON...S winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Wave Detail: S 3 ft at 7 seconds and E 1 foot at 8 seconds. Patchy fog. Vsby 1 NM or less. .TONIGHT...S winds 20 to 25 kt, increasing to 25 to 30 kt after midnight. Seas 4 to 6 ft, building to 6 to 9 ft after midnight. Wave Detail: S 6 ft at 6 seconds and E 1 foot at 9 seconds, becoming S 9 ft at 7 seconds and W 1 foot at 4 seconds. Patchy fog in the evening, then patchy dense fog after midnight. Vsby 1 NM or less. .THU...SW winds 25 to 30 kt, becoming W 15 to 20 kt in the afternoon. Seas 7 to 10 ft. Wave Detail: SW 10 ft at 8 seconds and W 1 foot at 4 seconds. Patchy fog. A chance of showers. Vsby 1 NM or less in the morning. .THU NIGHT...NW winds 20 to 25 kt. Seas 5 to 7 ft. Wave Detail: W 7 ft at 7 seconds and SE 4 ft at 9 seconds. A chance of showers and snow in the evening. .FRI...W winds 10 to 15 kt, becoming SW 15 to 20 kt in the afternoon. Seas 4 to 6 ft, subsiding to 3 to 4 ft in the afternoon. Wave Detail: SW 6 ft at 9 seconds and W 3 ft at 5 seconds, becoming SW 4 ft at 8 seconds and SE 3 ft at 10 seconds. .FRI NIGHT...S winds 20 to 25 kt, becoming SW 25 to 30 kt after midnight. Seas 5 to 7 ft, building to 7 to 10 ft after midnight. Wave Detail: SW 7 ft at 7 seconds and SE 2 ft at 10 seconds, becoming SW 10 ft at 9 seconds and W 1 foot at 5 seconds. A chance of rain after midnight. .SAT...W winds 25 to 30 kt with gusts up to 35 kt. Seas 8 to 11 ft. .SAT NIGHT...NW winds 20 to 25 kt. Seas 5 to 7 ft. .SUN...E winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. .SUN NIGHT...SE winds 30 to 35 kt with gusts up to 40 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. $$ ANZ256-120600- Coastal Waters from Montauk NY to Marthas Vineyard extending out to 20 nm South of Block Island- 107 PM EDT Wed Mar 11 2026 ...SMALL CRAFT ADVISORY IN EFFECT FROM 8 PM EDT THIS EVENING THROUGH THURSDAY AFTERNOON... .THIS AFTERNOON...S winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 4 ft. Wave Detail: S 3 ft at 7 seconds and SE 2 ft at 8 seconds. Patchy fog. Vsby 1 NM or less. .TONIGHT...S winds 20 to 25 kt with gusts up to 30 kt. Seas 4 to 6 ft, building to 6 to 9 ft after midnight. Wave Detail: S 6 ft at 6 seconds and E 2 ft at 9 seconds, becoming S 9 ft at 7 seconds and E 1 foot at 9 seconds. Patchy fog in the evening. Patchy dense fog after midnight. Vsby 1 NM or less. .THU...SW winds 20 to 25 kt, becoming NW 15 to 20 kt in the afternoon. Gusts up to 30 kt. Seas 6 to 9 ft. Wave Detail: S 9 ft at 7 seconds and W 2 ft at 4 seconds. A chance of showers. Patchy fog in the morning with vsby 1 NM or less. .THU NIGHT...NW winds 15 to 20 kt, increasing to 20 to 25 kt after midnight. Seas 5 to 7 ft. Wave Detail: S 6 ft at 8 seconds and NW 3 ft at 4 seconds. A chance of showers in the evening. .FRI...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 5 ft at 9 seconds and SE 3 ft at 10 seconds. .FRI NIGHT...S winds 20 to 25 kt, becoming SW 25 to 30 kt after midnight. Seas 5 to 7 ft, building to 7 to 10 ft after midnight. Wave Detail: SW 7 ft at 6 seconds and SE 2 ft at 10 seconds, becoming SW 10 ft at 9 seconds and W 1 foot at 5 seconds. .SAT...W winds 25 to 30 kt with gusts up to 35 kt. Seas 7 to 10 ft. .SAT NIGHT...NW winds 20 to 25 kt. Seas 4 to 6 ft. .SUN...E winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. .SUN NIGHT...SE winds 25 to 35 kt with gusts up to 40 kt. Seas 5 to 7 ft. Rain likely. 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. $$ ANZ232-120600- Nantucket Sound- 107 PM EDT Wed Mar 11 2026 ...SMALL CRAFT ADVISORY IN EFFECT FROM 8 PM EDT THIS EVENING THROUGH THURSDAY AFTERNOON... .THIS AFTERNOON...S winds 10 to 15 kt. Seas around 2 ft. Wave Detail: S 2 ft at 5 seconds and E 1 foot at 8 seconds. Patchy fog. Vsby 1 NM or less. .TONIGHT...S winds 20 to 25 kt with gusts up to 30 kt. Seas 2 to 4 ft, building to 4 to 6 ft after midnight. Wave Detail: SW 4 ft at 4 seconds and NE 1 foot at 6 seconds, becoming SW 5 ft at 5 seconds and NE 1 foot at 6 seconds. Patchy fog in the evening, then patchy dense fog after midnight. Vsby 1 NM or less. .THU...SW winds 20 to 25 kt, becoming W 15 to 20 kt in the afternoon. Gusts up to 30 kt. Seas 4 to 6 ft. Wave Detail: SW 5 ft at 5 seconds and NE 1 foot at 7 seconds. Patchy fog. A chance of showers. Vsby 1 NM or less in the morning. .THU NIGHT...W winds 15 to 20 kt. Seas 2 to 4 ft. Wave Detail: W 3 ft at 4 seconds and SE 2 ft at 8 seconds. A chance of showers and snow in the evening. .FRI...W winds 10 to 15 kt, becoming SW 15 to 20 kt in the afternoon. Seas 2 to 3 ft. Wave Detail: SW 3 ft at 8 seconds and NW 2 ft at 4 seconds. .FRI NIGHT...S winds 20 to 25 kt, becoming SW 25 to 30 kt after midnight. Seas 4 to 6 ft. Wave Detail: SW 5 ft at 6 seconds and N 1 foot at 6 seconds. A chance of rain. .SAT...W winds 25 to 30 kt. Seas 4 to 6 ft. A chance of rain. .SAT NIGHT...W winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 4 ft. .SUN...E winds 10 to 15 kt. Seas around 2 ft. .SUN NIGHT...SE winds 25 to 30 kt with gusts up to 40 kt. Seas 3 to 5 ft. Rain likely. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ233-120600- Vineyard Sound- 107 PM EDT Wed Mar 11 2026 ...SMALL CRAFT ADVISORY IN EFFECT FROM 8 PM EDT THIS EVENING THROUGH THURSDAY AFTERNOON... .THIS AFTERNOON...S winds 10 to 15 kt. Seas around 2 ft. Wave Detail: SE 2 ft at 7 seconds. Patchy fog. .TONIGHT...S winds 20 to 25 kt. Seas 4 to 6 ft. Wave Detail: SW 6 ft at 7 seconds and W 1 foot at 4 seconds. Patchy fog in the evening. Patchy dense fog after midnight. Vsby 1 NM or less. .THU...SW winds 20 to 25 kt, becoming NW 15 to 20 kt in the afternoon. Seas 5 to 7 ft. Wave Detail: SW 6 ft at 7 seconds and SW 2 ft at 4 seconds. A chance of showers. Patchy fog in the morning with vsby 1 NM or less. .THU NIGHT...W winds 15 to 20 kt. Seas 3 to 5 ft. Wave Detail: SW 4 ft at 8 seconds and S 3 ft at 9 seconds. A chance of showers in the evening. .FRI...W winds 10 to 15 kt, becoming SW 15 to 20 kt with gusts up to 25 kt in the afternoon. Seas 2 to 4 ft. Wave Detail: SW 4 ft at 8 seconds and W 2 ft at 5 seconds. .FRI NIGHT...SW winds 25 to 30 kt. Seas 5 to 7 ft. Wave Detail: SW 7 ft at 8 seconds and W 1 foot at 5 seconds. A chance of rain. .SAT...W winds 25 to 30 kt. Seas 5 to 7 ft. .SAT NIGHT...NW winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 4 ft. .SUN...E winds 10 to 15 kt. Seas around 2 ft. .SUN NIGHT...SE winds 30 to 35 kt with gusts up to 40 kt. Seas 3 to 5 ft. Rain likely. 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. $$ ANZ234-120600- Buzzards Bay- 107 PM EDT Wed Mar 11 2026 ...SMALL CRAFT ADVISORY IN EFFECT FROM 8 PM EDT THIS EVENING THROUGH THURSDAY AFTERNOON... .THIS AFTERNOON...S winds 5 to 10 kt. Seas around 2 ft. Wave Detail: S 1 foot at 5 seconds and NE 1 foot at 5 seconds. Patchy fog. .TONIGHT...S winds 15 to 20 kt, becoming SW 20 to 25 kt after midnight. Seas 3 to 5 ft. Wave Detail: SW 5 ft at 6 seconds and E 1 foot at 7 seconds. Patchy fog in the evening. Patchy dense fog after midnight. Vsby 1 NM or less. .THU...SW winds 20 to 25 kt, becoming NW 15 to 20 kt in the afternoon. Seas 3 to 5 ft. Wave Detail: SW 5 ft at 7 seconds and W 2 ft at 4 seconds. A chance of showers. Patchy fog in the morning with vsby 1 NM or less. .THU NIGHT...W winds 15 to 20 kt. Seas 2 to 4 ft. Wave Detail: SW 3 ft at 8 seconds and W 2 ft at 4 seconds. A chance of showers in the evening. .FRI...W winds around 10 kt, becoming SW 15 to 20 kt with gusts up to 25 kt in the afternoon. Seas 2 to 4 ft. Wave Detail: SW 4 ft at 8 seconds and NW 2 ft at 5 seconds. .FRI NIGHT...S winds 20 to 25 kt, becoming SW 25 to 30 kt after midnight. Seas 4 to 6 ft. Wave Detail: SW 6 ft at 7 seconds and W 2 ft at 4 seconds. A chance of rain. .SAT...W winds 25 to 30 kt. Seas 4 to 6 ft. .SAT NIGHT...NW winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 4 ft. .SUN...E winds 10 to 15 kt. Seas around 2 ft. .SUN NIGHT...SE winds 30 to 35 kt with gusts up to 40 kt. Seas 3 to 5 ft. Rain likely. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ235-120600- Rhode Island Sound- 107 PM EDT Wed Mar 11 2026 ...SMALL CRAFT ADVISORY IN EFFECT FROM 8 PM EDT THIS EVENING THROUGH THURSDAY AFTERNOON... .THIS AFTERNOON...SE winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: S 3 ft at 7 seconds and SE 1 foot at 8 seconds. Patchy fog. .TONIGHT...S winds 20 to 25 kt with gusts up to 30 kt. Seas 3 to 5 ft, building to 5 to 7 ft after midnight. Wave Detail: S 5 ft at 6 seconds and E 1 foot at 7 seconds, becoming S 7 ft at 7 seconds and E 1 foot at 7 seconds. Patchy fog in the evening. Patchy dense fog after midnight. Vsby 1 NM or less. .THU...SW winds 20 to 25 kt, becoming NW 15 to 20 kt in the afternoon. Seas 5 to 8 ft. Wave Detail: S 8 ft at 7 seconds and W 2 ft at 4 seconds. A chance of showers. Patchy fog in the morning with vsby 1 NM or less. .THU NIGHT...NW winds 15 to 20 kt. Seas 4 to 6 ft. Wave Detail: S 6 ft at 8 seconds and S 3 ft at 9 seconds. A chance of showers in the evening. .FRI...W winds 10 to 15 kt, becoming SW 15 to 20 kt with gusts up to 25 kt in the afternoon. Seas 2 to 4 ft. Wave Detail: S 4 ft at 9 seconds and SE 3 ft at 10 seconds. .FRI NIGHT...S winds 20 to 25 kt, becoming SW 25 to 30 kt after midnight. Seas 5 to 8 ft. Wave Detail: SW 8 ft at 9 seconds and W 2 ft at 5 seconds. A chance of rain. .SAT...W winds 25 to 30 kt. Seas 5 to 8 ft. .SAT NIGHT...NW winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to 5 ft. .SUN...E winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. .SUN NIGHT...SE winds 30 to 35 kt with gusts up to 40 kt. Seas 4 to 6 ft. Rain likely. 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. $$ ANZ237-120600- Block Island Sound- 107 PM EDT Wed Mar 11 2026 ...SMALL CRAFT ADVISORY IN EFFECT FROM 8 PM EDT THIS EVENING THROUGH THURSDAY AFTERNOON... .THIS AFTERNOON...SE winds around 10 kt with gusts up to 20 kt. Seas 2 to 3 ft. Wave Detail: S 2 ft at 7 seconds and SE 2 ft at 8 seconds. Patchy fog. .TONIGHT...S winds 15 to 20 kt with gusts up to 25 kt. Seas 4 to 6 ft. Wave Detail: S 6 ft at 7 seconds and W 1 foot at 4 seconds. Patchy fog in the evening, then patchy dense fog after midnight. A chance of showers after midnight. Vsby 1 NM or less. .THU...SW winds 15 to 20 kt, becoming NW in the afternoon. Gusts up to 25 kt. Seas 5 to 7 ft. Wave Detail: SW 6 ft at 6 seconds and SE 2 ft at 8 seconds. A chance of showers. Patchy fog in the morning with vsby 1 NM or less. .THU NIGHT...NW winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 5 ft. Wave Detail: S 5 ft at 8 seconds and W 2 ft at 4 seconds. A chance of showers in the evening. .FRI...W winds around 10 kt, becoming SW 15 to 20 kt with gusts up to 25 kt in the afternoon. Seas 2 to 4 ft. Wave Detail: S 4 ft at 8 seconds and S 3 ft at 9 seconds. .FRI NIGHT...SW winds 20 to 25 kt with gusts up to 30 kt. Seas 5 to 7 ft. Wave Detail: S 7 ft at 8 seconds and W 4 ft at 5 seconds. A chance of rain in the evening. .SAT...W winds 20 to 25 kt with gusts up to 30 kt. Seas 5 to 7 ft. .SAT NIGHT...NW winds 15 to 20 kt. Seas 2 to 4 ft. .SUN...E winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft. .SUN NIGHT...SE winds 25 to 30 kt with gusts up to 40 kt. Seas 4 to 6 ft. Rain likely. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ230-120600- Boston Harbor- 107 PM EDT Wed Mar 11 2026 .THIS AFTERNOON...E winds 5 to 10 kt. Waves 1 foot or less. Patchy fog. Vsby 1 NM or less. .TONIGHT...S winds 15 to 20 kt, increasing to 20 to 25 kt after midnight. Waves around 2 ft. Patchy fog. A chance of showers after midnight. Vsby 1 to 3 NM, decreasing to 1 NM or less after midnight. .THU...SW winds 15 to 20 kt, becoming W in the afternoon. Gusts up to 25 kt. Waves around 2 ft. A chance of showers. Patchy fog in the morning with vsby 1 to 3 NM. .THU NIGHT...W winds 15 to 20 kt with gusts up to 25 kt. Waves around 2 ft. A chance of showers in the evening. .FRI...W winds 10 to 15 kt, becoming SW 15 to 20 kt with gusts up to 25 kt in the afternoon. Waves around 2 ft. .FRI NIGHT...S winds 20 to 25 kt. Waves around 2 ft. A chance of rain. .SAT...W winds 25 to 30 kt with gusts up to 35 kt. Waves around 2 ft. A chance of rain. .SAT NIGHT AND SUN...W winds 20 to 25 kt with gusts up to 30 kt, becoming E 10 to 15 kt. Waves around 2 ft. .SUN NIGHT...SE winds 25 to 30 kt with gusts up to 35 kt. Waves 2 to 3 ft. Rain likely. 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. $$ ANZ236-120600- Narragansett Bay- 107 PM EDT Wed Mar 11 2026 .THIS AFTERNOON...S winds 5 to 10 kt. Waves around 2 ft. Patchy fog. .TONIGHT...S winds 15 to 20 kt with gusts up to 25 kt. Waves 2 to 3 ft, building to 3 to 5 ft after midnight. Patchy fog. Vsby 1 NM or less. .THU...SW winds 15 to 20 kt, becoming NW in the afternoon. Gusts up to 25 kt. Waves 3 to 5 ft, subsiding to 2 to 3 ft in the afternoon. A chance of showers. Patchy fog in the morning with vsby 1 NM or less. .THU NIGHT...W winds 10 to 15 kt with gusts up to 20 kt. Waves 2 to 3 ft. A chance of showers in the evening. .FRI...W winds 5 to 10 kt, becoming SW 15 to 20 kt with gusts up to 25 kt in the afternoon. Waves 2 to 3 ft. .FRI NIGHT...SW winds 20 to 25 kt with gusts up to 30 kt. Waves 3 to 5 ft. A chance of rain. .SAT...W winds 20 to 25 kt with gusts up to 30 kt. Waves 3 to 5 ft. .SAT NIGHT AND SUN...NW winds 15 to 20 kt, becoming E 10 to 15 kt. Waves 2 to 3 ft. .SUN NIGHT...SE winds 25 to 30 kt with gusts up to 40 kt. Waves 4 to 6 ft. Rain likely. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ For the latest updates...please visit our webpage at www.weather.gov/boston You can follow us on Facebook at www.facebook.com/us.nationalweatherservice.boston.gov You can follow us on Twitter at @NWSBoston