Coastal Waters Forecast
Issued by NWS Boston, MA

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275 FZUS51 KBOX 212004 CWFBOX Coastal Waters Forecast for Massachusetts and Rhode Island National Weather Service Boston/Norton MA 404 PM EDT Fri Jun 21 2024 Coastal waters from the Merrimack River MA to Watch Hill RI out to 25 NM ANZ200-220900- 404 PM EDT Fri Jun 21 2024 .Synopsis for Massachusetts and Rhode Island coastal waters... A weak backdoor front will dissipate across southern New England overnight. High pressure to the south of New England will result in southwest winds across the waters over the weekend. A cold front moves across New England Monday. High pressure builds back in on Tuesday. $$ ANZ250-220900- Coastal waters east of Ipswich Bay and the Stellwagen Bank National Marine Sanctuary- 404 PM EDT Fri Jun 21 2024 .TONIGHT...SE winds around 5 kt. Seas around 2 ft. Wave Detail: SE 2 ft at 8 seconds and N 1 foot at 3 seconds. Patchy fog. A slight chance of showers. Isolated tstms this evening. Vsby 1 NM or less. .SAT...SE winds 5 to 10 kt. Seas around 2 ft. Wave Detail: SE 2 ft at 9 seconds and S 1 foot at 2 seconds. Patchy fog. A chance of showers and tstms in the afternoon. Some tstms may produce gusty winds, frequent lightning, and heavy rainfall in the afternoon. Vsby 1 NM or less, increasing to 1 to 3 NM in the afternoon. .SAT NIGHT...SE winds 5 to 10 kt, becoming S after midnight. Seas around 2 ft. Wave Detail: SE 2 ft at 9 seconds and S 1 foot at 2 seconds. Patchy fog. A chance of showers and tstms in the evening. Some tstms may produce gusty winds, frequent lightning, and heavy rainfall in the evening. Vsby 1 to 3 NM. .SUN...S winds 10 to 15 kt, increasing to 15 to 20 kt in the afternoon. Gusts up to 25 kt. Seas 2 to 3 ft, building to 3 to 5 ft in the afternoon. Wave Detail: S 2 ft at 3 seconds and SE 2 ft at 9 seconds, becoming S 3 ft at 4 seconds and SE 2 ft at 10 seconds. A chance of showers. Patchy fog in the morning. .SUN NIGHT...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to 5 ft. Wave Detail: SW 3 ft at 4 seconds and SE 3 ft at 8 seconds. Showers likely. .MON...SW winds 10 to 15 kt. Gusts up to 20 kt in the morning. Seas 2 to 4 ft. Wave Detail: SE 3 ft at 7 seconds and SW 2 ft at 4 seconds. Showers likely. .MON NIGHT...W winds around 10 kt. Seas 2 to 4 ft. A chance of showers in the evening. .TUE THROUGH WED...S winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. .WED NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. A chance of showers. Winds and seas higher in and near tstms. 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. $$ ANZ251-220900- Massachusetts Bay and Ipswich Bay- 404 PM EDT Fri Jun 21 2024 .TONIGHT...SE winds around 5 kt. Seas around 2 ft. Wave Detail: NE 1 foot at 3 seconds and E 1 foot at 8 seconds. Patchy fog. A slight chance of showers. Isolated tstms this evening. Vsby 1 to 3 NM, decreasing to 1 NM or less after midnight. .SAT...E winds 5 to 10 kt. Seas around 2 ft. Wave Detail: SW 1 foot at 3 seconds and NE 1 foot at 3 seconds. Patchy fog. A chance of showers and tstms in the afternoon. Some tstms may produce gusty winds, frequent lightning, and heavy rainfall in the afternoon. Vsby 1 NM or less in the morning. .SAT NIGHT...E winds 5 to 10 kt, becoming S after midnight. Seas around 2 ft. Wave Detail: S 1 foot at 3 seconds and NE 1 foot at 3 seconds. Patchy fog. A chance of showers and tstms in the evening. Some tstms may produce gusty winds, frequent lightning, and heavy rainfall in the evening. Vsby 1 to 3 NM. .SUN...S winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 3 ft. Wave Detail: S 2 ft at 4 seconds and NE 1 foot at 4 seconds. A chance of showers. Patchy fog in the morning. .SUN NIGHT...SW winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 3 ft. Wave Detail: S 2 ft at 4 seconds and NE 1 foot at 5 seconds. Showers likely. .MON...SW winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: SW 2 ft at 3 seconds and SE 1 foot at 5 seconds. A chance of showers in the morning. Showers likely in the afternoon. .MON NIGHT...W winds around 10 kt. Seas around 2 ft. A chance of showers in the evening. .TUE THROUGH WED...S winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft. .WED NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. A chance of showers. Winds and seas higher in and near tstms. 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. $$ ANZ231-220900- Cape Cod Bay- 404 PM EDT Fri Jun 21 2024 .TONIGHT...E winds around 5 kt, becoming S after midnight. Seas around 2 ft. Wave Detail: NE 1 foot at 2 seconds and SE 1 foot at 8 seconds. Patchy fog. A slight chance of showers. Isolated tstms this evening. Vsby 1 to 3 NM, decreasing to 1 NM or less after midnight. .SAT...SW winds 5 to 10 kt. Seas around 2 ft. Wave Detail: SW 1 foot at 2 seconds and N 1 foot at 3 seconds. Patchy fog. A chance of showers and tstms in the afternoon. Some tstms may produce gusty winds, frequent lightning, and heavy rainfall in the afternoon. Vsby 1 NM or less, increasing to 1 to 3 NM in the afternoon. .SAT NIGHT...SW winds 5 to 10 kt. Seas around 2 ft. Wave Detail: SW 1 foot at 2 seconds and NE 1 foot at 3 seconds. Patchy fog. A chance of showers and tstms in the evening. Some tstms may produce gusty winds, frequent lightning, and heavy rainfall in the evening. Vsby 1 to 3 NM. .SUN...SW winds 10 to 15 kt, increasing to 15 to 20 kt in the afternoon. Gusts up to 25 kt. Seas 2 to 4 ft. Wave Detail: SW 2 ft at 3 seconds and S 2 ft at 8 seconds. A chance of showers. Patchy fog in the morning with vsby 1 to 3 NM. .SUN NIGHT...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to 4 ft. Wave Detail: SW 2 ft at 4 seconds and S 2 ft at 8 seconds. Showers likely. .MON...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Wave Detail: SW 2 ft at 3 seconds and S 2 ft at 8 seconds. Showers likely. .MON NIGHT...W winds 10 to 15 kt. Seas 2 to 3 ft. A chance of showers in the evening. .TUE THROUGH WED...SW winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft. .WED NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft. A chance of showers. Winds and seas higher in and near tstms. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ254-220900- Coastal waters from Provincetown MA to Chatham MA to Nantucket MA out 20 nm- 404 PM EDT Fri Jun 21 2024 .TONIGHT...SE winds around 5 kt, becoming S after midnight. Seas around 2 ft. Wave Detail: SE 2 ft at 8 seconds and W 1 foot at 4 seconds. Patchy fog. A slight chance of showers after midnight. Vsby 1 NM or less. .SAT...SW winds 5 to 10 kt. Gusts up to 20 kt in the afternoon. Seas around 2 ft. Wave Detail: SW 2 ft at 4 seconds and SE 2 ft at 8 seconds. Patchy fog. A chance of showers and tstms in the afternoon. Some tstms may produce gusty winds, frequent lightning, and heavy rainfall in the afternoon. Vsby 1 NM or less, increasing to 1 to 3 NM in the afternoon. .SAT NIGHT...SW winds 5 to 10 kt. Gusts up to 20 kt after midnight. Seas 2 to 3 ft. Wave Detail: SW 2 ft at 5 seconds and SE 2 ft at 8 seconds. Patchy fog. A chance of showers and tstms in the evening. Some tstms may produce gusty winds, frequent lightning, and heavy rainfall in the evening. Vsby 1 to 3 NM, decreasing to 1 NM or less after midnight. .SUN...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 4 to 6 ft. Wave Detail: S 5 ft at 8 seconds and SW 3 ft at 4 seconds. Patchy fog in the morning with vsby 1 NM or less. .SUN NIGHT...SW winds 20 to 25 kt, diminishing to 15 to 20 kt after midnight. Gusts up to 30 kt. Seas 5 to 7 ft. Wave Detail: S 6 ft at 7 seconds and W 2 ft at 4 seconds. A chance of showers in the evening, then showers after midnight. .MON...SW winds 15 to 20 kt, diminishing to 10 to 15 kt in the afternoon. Gusts up to 25 kt. Seas 4 to 6 ft. Wave Detail: S 6 ft at 9 seconds and W 1 foot at 4 seconds. Showers likely. .MON NIGHT...W winds 10 to 15 kt. Gusts up to 20 kt in the evening. Seas 4 to 6 ft. A chance of showers. .TUE...W winds 5 to 10 kt. Seas 3 to 5 ft. .TUE NIGHT AND WED...SW winds 5 to 10 kt, increasing to 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. .WED NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 4 ft. A chance of showers. Winds and seas higher in and near tstms. 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. $$ ANZ255-220900- Coastal Waters extending out to 25 nm South of Marthas Vineyard and Nantucket- 404 PM EDT Fri Jun 21 2024 .TONIGHT...SW winds 5 to 10 kt. Seas around 2 ft. Wave Detail: SW 2 ft at 5 seconds and SE 2 ft at 8 seconds. Patchy fog. Vsby 1 NM or less. .SAT...SW winds 5 to 10 kt with gusts up to 20 kt. Seas 2 to 3 ft. Wave Detail: S 3 ft at 7 seconds. Patchy fog. Vsby 1 NM or less, increasing to 1 to 3 NM in the afternoon. .SAT NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. Wave Detail: S 4 ft at 7 seconds. Patchy fog. Vsby 1 to 3 NM, decreasing to 1 NM or less after midnight. .SUN...SW winds 15 to 20 kt, increasing to 20 to 25 kt in the afternoon. Gusts up to 30 kt. Seas 3 to 5 ft, building to 5 to 7 ft in the afternoon. Wave Detail: SW 5 ft at 7 seconds and SW 1 foot at 3 seconds, becoming SW 7 ft at 7 seconds and SW 1 foot at 4 seconds. Patchy fog in the morning with vsby 1 NM or less. .SUN NIGHT...SW winds 20 to 25 kt with gusts up to 30 kt. Seas 6 to 8 ft. Wave Detail: SW 8 ft at 7 seconds and SW 1 foot at 4 seconds. A chance of showers in the evening, then showers after midnight. .MON...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 5 to 7 ft. Wave Detail: SW 7 ft at 9 seconds and SW 1 foot at 4 seconds. Showers. .MON NIGHT...W winds 10 to 15 kt. Gusts up to 20 kt in the evening. Seas 5 to 7 ft. A chance of showers. .TUE...W winds 10 to 15 kt. Seas 4 to 6 ft. .TUE NIGHT AND WED...SW winds 10 to 15 kt. Gusts up to 20 kt. Seas 3 to 4 ft. .WED NIGHT...SW winds 15 to 20 kt. Seas 3 to 4 ft. A chance of showers. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ256-220900- Coastal Waters from Montauk NY to Marthas Vineyard extending out to 20 nm South of Block Island- 404 PM EDT Fri Jun 21 2024 .TONIGHT...SW winds 5 to 10 kt. Gusts up to 20 kt after midnight. Seas 2 to 3 ft. Wave Detail: SW 2 ft at 5 seconds and SE 2 ft at 8 seconds. Patchy fog. Vsby 1 to 3 NM, decreasing to 1 NM or less after midnight. .SAT...SW winds around 10 kt with gusts up to 20 kt. Seas 2 to 3 ft. Wave Detail: SW 3 ft at 5 seconds and SE 2 ft at 8 seconds. Patchy fog. Vsby 1 NM or less, increasing to 1 to 3 NM in the afternoon. .SAT NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 5 ft. Wave Detail: SW 4 ft at 7 seconds. Patchy fog. A chance of tstms in the evening. Some tstms may produce gusty winds, frequent lightning, and heavy rainfall in the evening. Vsby 1 NM or less. .SUN...SW winds 15 to 20 kt, increasing to 20 to 25 kt in the afternoon. Gusts up to 30 kt. Seas 5 to 7 ft. Wave Detail: S 7 ft at 7 seconds. Patchy fog in the morning with vsby 1 NM or less. .SUN NIGHT...SW winds 20 to 25 kt with gusts up to 30 kt. Seas 6 to 8 ft. Wave Detail: S 8 ft at 8 seconds and SW 1 foot at 3 seconds. Showers. A chance of tstms after midnight. .MON...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 6 to 8 ft. Wave Detail: S 8 ft at 9 seconds. Showers likely. .MON NIGHT...W winds 10 to 15 kt. Gusts up to 20 kt in the evening. Seas 5 to 6 ft. A chance of showers in the evening. .TUE THROUGH WED...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 5 ft. .WED NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 4 to 5 ft. A chance of showers. Winds and seas higher in and near tstms. 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. $$ ANZ232-220900- Nantucket Sound- 404 PM EDT Fri Jun 21 2024 .TONIGHT...S winds around 5 kt. Gusts up to 20 kt after midnight. Seas around 2 ft. Wave Detail: SW 1 foot at 5 seconds and SE 1 foot at 8 seconds. Patchy fog. Vsby 1 NM or less. .SAT...SW winds 5 to 10 kt with gusts up to 20 kt. Seas around 2 ft. Wave Detail: SW 1 foot at 4 seconds and SE 1 foot at 8 seconds. Patchy fog. A chance of showers and tstms in the afternoon. Some tstms may produce gusty winds, frequent lightning, and heavy rainfall in the afternoon. Vsby 1 NM or less in the morning. .SAT NIGHT...SW winds around 10 kt with gusts up to 20 kt. Seas around 2 ft. Wave Detail: SW 1 foot at 3 seconds and NE 1 foot at 3 seconds. Patchy fog. A chance of showers and tstms in the evening. Some tstms may produce gusty winds, frequent lightning, and heavy rainfall in the evening. Vsby 1 to 3 NM. .SUN...SW winds 15 to 20 kt, increasing to 20 to 25 kt in the afternoon. Seas 3 to 5 ft. Wave Detail: SW 3 ft at 4 seconds and S 3 ft at 7 seconds. Patchy fog in the morning with vsby 1 to 3 NM. .SUN NIGHT...SW winds 20 to 25 kt with gusts up to 30 kt. Seas 4 to 5 ft. Wave Detail: SW 4 ft at 4 seconds and S 4 ft at 7 seconds. Showers likely. .MON...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to 5 ft. Wave Detail: SW 3 ft at 4 seconds and SW 2 ft at 8 seconds. Showers likely. .MON NIGHT...W winds 10 to 15 kt. Gusts up to 20 kt in the evening. Seas 2 to 4 ft. A chance of showers in the evening. .TUE THROUGH WED...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. .WED NIGHT...SW winds around 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. A chance of showers. Winds and seas higher in and near tstms. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ233-220900- Vineyard Sound- 404 PM EDT Fri Jun 21 2024 .TONIGHT...S winds around 5 kt. Seas around 2 ft. Wave Detail: SW 1 foot at 5 seconds and SE 1 foot at 8 seconds. Patchy fog. Vsby 1 to 3 NM, decreasing to 1 NM or less after midnight. .SAT...SW winds 5 to 10 kt. Seas around 2 ft. Wave Detail: S 2 ft at 6 seconds. Patchy fog in the morning. A chance of showers and tstms in the afternoon. Some tstms may produce gusty winds, frequent lightning, and heavy rainfall in the afternoon. Vsby 1 NM or less in the morning. .SAT NIGHT...SW winds 5 to 10 kt. Seas around 2 ft. Wave Detail: SW 2 ft at 6 seconds. Patchy fog. A chance of showers and tstms in the evening. Some tstms may produce gusty winds, frequent lightning, and heavy rainfall in the evening. Vsby 1 to 3 NM, decreasing to 1 NM or less after midnight. .SUN...SW winds 15 to 20 kt with gusts up to 30 kt. Seas 3 to 5 ft. Wave Detail: SW 5 ft at 7 seconds and SW 2 ft at 4 seconds. Patchy fog in the morning with vsby 1 to 3 NM. .SUN NIGHT...SW winds 20 to 25 kt with gusts up to 30 kt. Seas 4 to 6 ft. Wave Detail: SW 5 ft at 7 seconds and SW 2 ft at 4 seconds. Showers likely. .MON...SW winds 15 to 20 kt. Seas 4 to 5 ft. Wave Detail: SW 5 ft at 8 seconds and SW 2 ft at 4 seconds. Showers likely. .MON NIGHT...W winds 10 to 15 kt. Gusts up to 20 kt in the evening. Seas 3 to 5 ft. A chance of showers in the evening. .TUE THROUGH WED...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. .WED NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. A chance of showers. Winds and seas higher in and near tstms. 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. $$ ANZ234-220900- Buzzards Bay- 404 PM EDT Fri Jun 21 2024 .TONIGHT...S winds around 5 kt. Seas around 2 ft. Wave Detail: SW 1 foot at 5 seconds and SE 1 foot at 8 seconds. Patchy fog. A slight chance of showers. Isolated tstms this evening. Vsby 1 to 3 NM, decreasing to 1 NM or less after midnight. .SAT...SW winds 5 to 10 kt. Gusts up to 20 kt in the afternoon. Seas around 2 ft. Wave Detail: SW 2 ft at 5 seconds and SE 1 foot at 8 seconds. Patchy fog in the morning. A chance of showers and tstms in the afternoon. Some tstms may produce gusty winds, frequent lightning, and heavy rainfall in the afternoon. Vsby 1 NM or less in the morning. .SAT NIGHT...SW winds 5 to 10 kt. Seas around 2 ft. Wave Detail: S 2 ft at 6 seconds. Patchy fog. A chance of showers and tstms in the evening. Some tstms may produce gusty winds, frequent lightning, and heavy rainfall in the evening. Vsby 1 to 3 NM. .SUN...SW winds 15 to 20 kt with gusts up to 30 kt. Seas 2 to 4 ft. Wave Detail: SW 4 ft at 7 seconds and SW 3 ft at 4 seconds. Patchy fog in the morning. A chance of showers in the afternoon. Vsby 1 to 3 NM in the morning. .SUN NIGHT...SW winds 20 to 25 kt, diminishing to 15 to 20 kt after midnight. Seas 4 to 5 ft. Wave Detail: SW 5 ft at 7 seconds and SW 3 ft at 4 seconds. Showers likely. .MON...SW winds around 15 kt with gusts up to 20 kt. Seas 3 to 4 ft. Wave Detail: SW 4 ft at 8 seconds and SW 2 ft at 4 seconds. Showers likely. .MON NIGHT...W winds 10 to 15 kt. Gusts up to 20 kt in the evening. Seas 2 to 4 ft. A chance of showers in the evening. .TUE THROUGH WED...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. .WED NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. A chance of showers. Winds and seas higher in and near tstms. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ235-220900- Rhode Island Sound- 404 PM EDT Fri Jun 21 2024 .TONIGHT...S winds 5 to 10 kt. Seas around 2 ft. Wave Detail: SW 2 ft at 5 seconds and S 2 ft at 8 seconds. Patchy fog. A slight chance of showers with isolated tstms this evening. Vsby 1 to 3 NM, decreasing to 1 NM or less after midnight. .SAT...SW winds 5 to 10 kt. Gusts up to 20 kt in the afternoon. Seas 2 to 3 ft. Wave Detail: S 2 ft at 6 seconds. Patchy fog. Vsby 1 NM or less, increasing to 1 to 3 NM in the afternoon. .SAT NIGHT...SW winds around 10 kt. Gusts up to 20 kt after midnight. Seas 2 to 3 ft. Wave Detail: S 3 ft at 7 seconds. Patchy fog. A chance of showers and tstms in the evening. Some tstms may produce gusty winds, frequent lightning, and heavy rainfall in the evening. Vsby 1 NM or less. .SUN...SW 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 SW 2 ft at 4 seconds. Patchy fog in the morning with vsby 1 to 3 NM. .SUN NIGHT...SW winds 20 to 25 kt with gusts up to 30 kt. Seas 5 to 7 ft. Wave Detail: S 7 ft at 7 seconds and SW 1 foot at 4 seconds. Showers likely. .MON...SW winds 15 to 20 kt. Seas 5 to 6 ft. Wave Detail: S 6 ft at 9 seconds and SW 1 foot at 3 seconds. Showers likely. .MON NIGHT...W winds 10 to 15 kt. Gusts up to 20 kt in the evening. Seas 4 to 5 ft. A chance of showers in the evening. .TUE THROUGH WED...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. .WED NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 4 ft. A chance of showers. Winds and seas higher in and near tstms. 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. $$ ANZ237-220900- Block Island Sound- 404 PM EDT Fri Jun 21 2024 ...SEVERE THUNDERSTORM WATCH 444 IN EFFECT UNTIL 8 PM EDT THIS EVENING... .TONIGHT...S winds around 5 kt. Seas around 2 ft. Wave Detail: SW 2 ft at 5 seconds and SE 2 ft at 8 seconds. Patchy fog. Isolated showers and tstms this evening. Some tstms may produce gusty winds, frequent lightning, and heavy rainfall this evening. Vsby 1 to 3 NM. .SAT...SW winds 5 to 10 kt with gusts up to 20 kt. Seas 2 to 3 ft. Wave Detail: SW 2 ft at 5 seconds and SE 2 ft at 8 seconds. Patchy fog in the morning. A chance of showers and tstms in the afternoon. Some tstms may produce gusty winds, frequent lightning, and heavy rainfall in the afternoon. Vsby 1 NM or less, increasing to 1 to 3 NM in the afternoon. .SAT NIGHT...SW winds 5 to 10 kt with gusts up to 20 kt. Seas 2 to 3 ft. Wave Detail: S 3 ft at 6 seconds. Patchy fog. A chance of showers and tstms in the evening. Some tstms may produce gusty winds, frequent lightning, and heavy rainfall in the evening. Vsby 1 NM or less. .SUN...SW winds 10 to 15 kt, increasing to 15 to 20 kt in the afternoon. Gusts up to 25 kt. Seas 3 to 4 ft, building to 4 to 6 ft in the afternoon. Wave Detail: S 4 ft at 7 seconds and SW 1 foot at 3 seconds, becoming S 5 ft at 7 seconds and SW 2 ft at 4 seconds. Patchy fog in the morning. A chance of showers in the afternoon. Vsby 1 NM or less in the morning. .SUN NIGHT...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 5 to 6 ft. Wave Detail: S 5 ft at 8 seconds and W 2 ft at 4 seconds. Showers likely. .MON...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 4 to 6 ft. Wave Detail: S 6 ft at 9 seconds and W 1 foot at 4 seconds. Showers likely. .MON NIGHT...W winds 10 to 15 kt. Gusts up to 20 kt in the evening. Seas 3 to 5 ft. A chance of showers in the evening. .TUE THROUGH WED...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. .WED NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 4 ft. A chance of showers. Winds and seas higher in and near tstms. 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. $$ ANZ230-220900- Boston Harbor- 404 PM EDT Fri Jun 21 2024 .TONIGHT...E winds around 5 kt. Waves 1 foot or less. Patchy fog. A chance of showers with a slight chance of tstms this evening, then a slight chance of showers after midnight with vsby 1 to 3 NM. .SAT...SE winds around 5 kt, becoming E in the afternoon. Waves 1 foot or less. Patchy fog in the morning. Showers and tstms likely in the afternoon. Some tstms may produce gusty winds, frequent lightning, and heavy rainfall in the afternoon. Vsby 1 NM or less in the morning. .SAT NIGHT...NE winds around 5 kt, becoming SW after midnight. Waves 1 foot or less. A chance of showers and tstms in the evening. Some tstms may produce gusty winds, frequent lightning, and heavy rainfall in the evening. Vsby 1 to 3 NM. .SUN...S winds 5 to 10 kt, increasing to 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. A chance of showers in the morning, then showers likely in the afternoon. .SUN NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Waves around 2 ft. Showers likely. .MON...W winds 10 to 15 kt. Waves 1 foot or less. A chance of showers in the morning. Showers likely in the afternoon. .MON NIGHT...NW winds around 10 kt. Waves 1 foot or less. A chance of showers in the evening. .TUE THROUGH WED...SW winds 10 to 15 kt with gusts up to 20 kt. Waves around 2 ft. .WED NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Waves around 2 ft. A chance of showers. Winds and waves higher in and near tstms. 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. $$ ANZ236-220900- Narragansett Bay- 404 PM EDT Fri Jun 21 2024 .TONIGHT...S winds around 5 kt. Waves around 2 ft. Patchy fog. A slight chance of showers with isolated tstms this evening. Vsby 1 to 3 NM. .SAT...SW winds 5 to 10 kt. Waves around 2 ft. Patchy fog in the morning. A chance of showers and tstms in the afternoon. Some tstms may produce gusty winds, frequent lightning, and heavy rainfall in the afternoon. Vsby 1 NM or less in the morning. .SAT NIGHT...SW winds 5 to 10 kt. Waves around 2 ft. Patchy fog. A chance of showers and tstms in the evening. Some tstms may produce gusty winds, frequent lightning, and heavy rainfall in the evening. Vsby 1 to 3 NM. .SUN...SW winds 10 to 15 kt, increasing to 15 to 20 kt in the afternoon. Gusts up to 25 kt. Waves 3 to 5 ft. Patchy fog in the morning. A chance of showers in the afternoon. Vsby 1 to 3 NM in the morning. .SUN NIGHT...SW winds 15 to 20 kt, diminishing to 10 to 15 kt after midnight. Gusts up to 25 kt. Waves 3 to 5 ft. Showers likely. .MON...SW winds 10 to 15 kt with gusts up to 20 kt. Waves 3 to 5 ft. Showers likely. .MON NIGHT...W winds 5 to 10 kt. Waves 2 to 4 ft. A chance of showers in the evening. .TUE THROUGH WED...SW winds 10 to 15 kt with gusts up to 20 kt. Waves 2 to 3 ft. .WED NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Waves 2 to 3 ft. A chance of showers. Winds and waves higher in and near tstms. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ 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