


Coastal Waters Forecast
Issued by NWS Boston, MA
Issued by NWS Boston, MA
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476 FZUS51 KBOX 150507 CWFBOX Coastal Waters Forecast for Massachusetts and Rhode Island National Weather Service Boston/Norton MA 107 AM EDT Tue Jul 15 2025 Coastal waters from the Merrimack River MA to Watch Hill RI out to 25 NM ANZ200-151800- 107 AM EDT Tue Jul 15 2025 .Synopsis for Massachusetts and Rhode Island coastal waters... Cold front stalls over MA Mon-Wed. Generally unsettled through the week with periods of isolated showers. $$ ANZ250-151800- Coastal waters east of Ipswich Bay and the Stellwagen Bank National Marine Sanctuary- 107 AM EDT Tue Jul 15 2025 .REST OF TONIGHT...SW winds around 10 kt with gusts up to 20 kt. Seas 2 to 3 ft. Wave Detail: SW 2 ft at 3 seconds and SE 2 ft at 6 seconds. Patchy fog. A chance of showers with a slight chance of tstms. Vsby 1 to 3 NM. .TUE...SW winds 5 to 10 kt. Seas around 2 ft. Wave Detail: SE 2 ft at 8 seconds and SW 1 foot at 3 seconds. Patchy fog in the morning. A chance of showers in the morning with vsby 1 to 3 NM. .TUE NIGHT...SW winds around 10 kt. Gusts up to 20 kt in the evening. Seas around 2 ft. Wave Detail: SW 2 ft at 3 seconds and SE 2 ft at 8 seconds. Patchy fog after midnight with vsby 1 NM or less. .WED...SW winds 5 to 10 kt, becoming S 10 to 15 kt with gusts up to 20 kt in the afternoon. Seas 2 to 3 ft. Wave Detail: S 2 ft at 3 seconds and SE 1 foot at 8 seconds. Patchy fog. Vsby 1 NM or less. .WED NIGHT...S winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Wave Detail: S 2 ft at 4 seconds and E 1 foot at 7 seconds. .THU...S winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 3 ft. Wave Detail: S 3 ft at 4 seconds and SE 1 foot at 8 seconds. A chance of showers. .THU NIGHT...SW winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 3 ft. .FRI THROUGH SAT NIGHT...S winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Winds and seas higher in and near tstms. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ251-151800- Massachusetts Bay and Ipswich Bay- 107 AM EDT Tue Jul 15 2025 .REST OF TONIGHT...SW winds 5 to 10 kt. Seas around 2 ft. Wave Detail: SE 2 ft at 7 seconds and S 1 foot at 3 seconds. Patchy fog. A chance of showers with a slight chance of tstms. Vsby 1 to 3 NM. .TUE...SW winds 5 to 10 kt, becoming S in the afternoon. Seas around 2 ft. Wave Detail: SE 2 ft at 6 seconds and SW 1 foot at 3 seconds. Patchy fog in the morning. A chance of showers in the morning. .TUE NIGHT...SW winds 5 to 10 kt. Seas around 2 ft. Wave Detail: S 1 foot at 3 seconds and SE 1 foot at 7 seconds. Patchy fog after midnight with vsby 1 NM or less. .WED...SW winds 5 to 10 kt, becoming S 10 to 15 kt with gusts up to 20 kt in the afternoon. Seas 1 foot or less, then around 2 ft in the afternoon. Wave Detail: SW 1 foot at 2 seconds and E 1 foot at 7 seconds, becoming S 2 ft at 3 seconds and E 1 foot at 7 seconds. Patchy fog in the morning with vsby 1 NM or less. .WED NIGHT...S 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 1 foot at 7 seconds. .THU...S winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Wave Detail: S 2 ft at 3 seconds and E 1 foot at 7 seconds. A chance of showers. A chance of tstms in the afternoon. .THU NIGHT...SW winds 10 to 15 kt. Gusts up to 20 kt in the evening. Seas 2 to 3 ft. .FRI THROUGH SAT NIGHT...S winds 5 to 10 kt. Seas around 2 ft. 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. $$ ANZ231-151800- Cape Cod Bay- 107 AM EDT Tue Jul 15 2025 .REST OF TONIGHT...SW winds 5 to 10 kt. Seas around 2 ft. Wave Detail: SW 1 foot at 2 seconds and SE 1 foot at 6 seconds. Patchy fog. A chance of showers with a slight chance of tstms. .TUE...SW winds 5 to 10 kt. Seas 1 foot or less, then around 2 ft in the afternoon. Wave Detail: SW 1 foot at 2 seconds and E 1 foot at 7 seconds, becoming SW 1 foot at 2 seconds and SE 1 foot at 7 seconds. Patchy fog in the morning. A chance of showers in the morning. .TUE NIGHT...SW winds 5 to 10 kt. Seas around 2 ft in the evening, then 1 foot or less. Wave Detail: SW 1 foot at 2 seconds and SE 1 foot at 7 seconds, becoming SW 1 foot at 2 seconds and E 1 foot at 7 seconds. Patchy fog after midnight with vsby 1 NM or less. .WED...SW winds 5 to 10 kt, becoming S 10 to 15 kt with gusts up to 20 kt in the afternoon. Seas 1 foot or less, then around 2 ft in the afternoon. Wave Detail: SW 1 foot at 2 seconds and E 1 foot at 7 seconds, becoming S 1 foot at 3 seconds and E 1 foot at 7 seconds. Patchy fog in the morning with vsby 1 NM or less. .WED NIGHT...SW winds 10 to 15 kt. Gusts up to 20 kt in the evening. Seas around 2 ft. Wave Detail: SW 1 foot at 3 seconds and E 1 foot at 7 seconds. .THU AND THU NIGHT...SW winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 4 ft. Wave Detail: SW 2 ft at 3 seconds and E 1 foot at 7 seconds. .FRI THROUGH SAT NIGHT...S winds 5 to 10 kt. Seas around 2 ft. Winds and seas higher in and near tstms. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ254-151800- Coastal waters from Provincetown MA to Chatham MA to Nantucket MA out 20 nm- 107 AM EDT Tue Jul 15 2025 .REST OF TONIGHT...SW winds around 10 kt. Seas around 2 ft. Wave Detail: SE 2 ft at 7 seconds and SW 1 foot at 4 seconds. Patchy fog. A slight chance of showers and tstms. Vsby 1 NM or less. .TUE...SW winds around 10 kt. Seas around 2 ft. Wave Detail: SW 2 ft at 3 seconds and SE 2 ft at 7 seconds. Patchy fog. Vsby 1 NM or less. .TUE NIGHT...SW winds 5 to 10 kt. Seas around 2 ft. Wave Detail: SW 2 ft at 4 seconds and SE 2 ft at 8 seconds. Patchy fog. Vsby 1 NM or less, increasing to 1 to 3 NM after midnight. .WED...SW winds 5 to 10 kt. Gusts up to 20 kt in the afternoon. Seas around 2 ft. Wave Detail: S 2 ft at 6 seconds. Patchy fog in the morning with vsby 1 NM or less. .WED NIGHT THROUGH THU NIGHT...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 4 ft. Wave Detail: S 4 ft at 6 seconds and E 1 foot at 8 seconds. .FRI THROUGH SAT NIGHT...S winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. Wave Detail: SW 4 ft at 7 seconds and NE 2 ft at 10 seconds. 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. $$ ANZ255-151800- Coastal Waters extending out to 25 nm South of Marthas Vineyard and Nantucket- 107 AM EDT Tue Jul 15 2025 .REST OF TONIGHT...SW winds around 10 kt. Seas around 2 ft. Wave Detail: SE 2 ft at 6 seconds and SW 1 foot at 5 seconds. Patchy fog. A slight chance of showers and tstms. Vsby 1 NM or less. .TUE...SW winds around 10 kt. Seas around 2 ft. Wave Detail: SW 2 ft at 4 seconds and SE 2 ft at 7 seconds. Patchy fog. Vsby 1 NM or less. .TUE NIGHT...SW winds around 10 kt. Seas around 2 ft. Wave Detail: SW 2 ft at 4 seconds and E 1 foot at 7 seconds. Patchy fog. Vsby 1 NM or less. .WED...SW winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: S 2 ft at 5 seconds and E 1 foot at 7 seconds. Patchy fog in the morning with vsby 1 NM or less. .WED NIGHT...SW winds 10 to 15 kt. Gusts up to 20 kt after midnight. Seas 2 to 3 ft. Wave Detail: SW 3 ft at 5 seconds and E 1 foot at 7 seconds. Patchy fog in the evening. A chance of showers after midnight. Vsby 1 to 3 NM in the evening. .THU AND THU NIGHT...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to 5 ft. Wave Detail: SW 5 ft at 7 seconds and E 1 foot at 7 seconds. .FRI AND FRI NIGHT...W winds 10 to 15 kt with gusts up to 20 kt, becoming N. Seas 3 to 5 ft. .SAT AND SAT NIGHT...NE winds 10 to 15 kt, becoming SE 5 to 10 kt. Seas 2 to 4 ft. Winds and seas higher in and near tstms. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ256-151800- Coastal Waters from Montauk NY to Marthas Vineyard extending out to 20 nm South of Block Island- 107 AM EDT Tue Jul 15 2025 .REST OF TONIGHT...SW winds around 10 kt. Seas around 2 ft. Wave Detail: S 2 ft at 6 seconds. Patchy fog. A chance of showers with a slight chance of tstms. Vsby 1 NM or less. .TUE...SW winds 5 to 10 kt. Seas around 2 ft. Wave Detail: SW 2 ft at 4 seconds and SE 2 ft at 6 seconds. Patchy fog. A chance of showers in the morning. Vsby 1 NM or less. .TUE NIGHT...SW winds around 10 kt. Seas around 2 ft. Wave Detail: SW 2 ft at 4 seconds and E 2 ft at 7 seconds. Patchy fog. Vsby 1 NM or less. .WED...SW winds 10 to 15 kt. Gusts up to 20 kt in the afternoon. Seas 2 to 3 ft. Wave Detail: SE 2 ft at 6 seconds. Patchy fog in the morning with vsby 1 NM or less. .WED NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Wave Detail: S 3 ft at 7 seconds. Patchy fog in the evening. A chance of showers after midnight. Vsby 1 to 3 NM in the evening. .THU...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to 4 ft. Wave Detail: S 4 ft at 6 seconds and E 1 foot at 6 seconds. A chance of showers in the morning. .THU NIGHT...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 4 to 5 ft. .FRI THROUGH SAT...NE winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 5 ft. .SAT NIGHT...S winds 5 to 10 kt. Seas 2 to 3 ft. 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. $$ ANZ232-151800- Nantucket Sound- 107 AM EDT Tue Jul 15 2025 .REST OF TONIGHT...SW winds around 10 kt. Seas around 2 ft. Wave Detail: SW 1 foot at 3 seconds and E 1 foot at 6 seconds. Patchy fog. A slight chance of showers and tstms. Vsby 1 to 3 NM. .TUE...SW winds 10 to 15 kt. Seas around 2 ft. Wave Detail: SW 1 foot at 3 seconds and E 1 foot at 6 seconds. Patchy fog. Vsby 1 NM or less. .TUE NIGHT...SW winds around 10 kt. Seas around 2 ft. Wave Detail: SW 1 foot at 3 seconds and E 1 foot at 6 seconds. Patchy fog. Vsby 1 to 3 NM, decreasing to 1 NM or less after midnight. .WED...SW winds 10 to 15 kt. Gusts up to 20 kt in the afternoon. Seas around 2 ft. Wave Detail: SW 2 ft at 3 seconds and E 1 foot at 6 seconds. Patchy fog in the morning with vsby 1 NM or less. .WED NIGHT THROUGH THU NIGHT...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 3 ft. Wave Detail: SW 3 ft at 4 seconds and E 1 foot at 6 seconds. .FRI THROUGH SAT NIGHT...S winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Wave Detail: SW 2 ft at 4 seconds and NE 2 ft at 6 seconds. Winds and seas higher in and near tstms. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ233-151800- Vineyard Sound- 107 AM EDT Tue Jul 15 2025 .REST OF TONIGHT...SW winds around 10 kt. Seas around 2 ft. Wave Detail: SW 1 foot at 3 seconds and SE 1 foot at 7 seconds. Patchy fog. A chance of showers with a slight chance of tstms. Vsby 1 NM or less. .TUE...SW winds 5 to 10 kt. Seas around 2 ft. Wave Detail: SW 1 foot at 3 seconds and SE 1 foot at 7 seconds. Patchy fog. A chance of showers in the morning. Vsby 1 NM or less, increasing to 1 to 3 NM in the afternoon. .TUE NIGHT...SW winds 5 to 10 kt. Seas around 2 ft. Wave Detail: SW 1 foot at 3 seconds and SE 1 foot at 7 seconds. Patchy fog. Vsby 1 to 3 NM, decreasing to 1 NM or less after midnight. .WED...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 4 seconds and SE 1 foot at 8 seconds. Patchy fog in the morning with vsby 1 NM or less. .WED NIGHT...SW winds 10 to 15 kt. Gusts up to 20 kt after midnight. Seas around 2 ft. Wave Detail: SW 2 ft at 4 seconds and E 1 foot at 8 seconds. Patchy fog in the evening. A chance of showers after midnight. Vsby 1 to 3 NM in the evening. .THU...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 4 ft. Wave Detail: SW 3 ft at 5 seconds and E 1 foot at 7 seconds. A chance of showers in the morning. .THU NIGHT...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 4 ft. .FRI THROUGH SAT NIGHT...S winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. 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. $$ ANZ234-151800- Buzzards Bay- 107 AM EDT Tue Jul 15 2025 .REST OF TONIGHT...SW winds around 10 kt. Seas around 2 ft. Wave Detail: SW 1 foot at 3 seconds and SE 1 foot at 6 seconds. Patchy fog. A chance of showers with a slight chance of tstms. Vsby 1 NM or less. .TUE...SW winds 5 to 10 kt, increasing to 10 to 15 kt in the afternoon. Seas 1 foot or less, then around 2 ft in the afternoon. Wave Detail: SW 1 foot at 3 seconds and SE 1 foot at 7 seconds. Patchy fog. A chance of showers in the morning. Vsby 1 NM or less, increasing to 1 to 3 NM in the afternoon. .TUE NIGHT...SW winds 5 to 10 kt. Seas around 2 ft in the evening, then 1 foot or less. Wave Detail: SW 1 foot at 3 seconds and SE 1 foot at 7 seconds, becoming SW 1 foot at 4 seconds and SE 1 foot at 7 seconds. Patchy fog. Vsby 1 to 3 NM, decreasing to 1 NM or less after midnight. .WED...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 around 2 ft in the afternoon. Wave Detail: SW 1 foot at 4 seconds and SE 1 foot at 7 seconds, becoming SW 2 ft at 3 seconds and SE 1 foot at 7 seconds. Patchy fog. Vsby 1 NM or less, increasing to 1 to 3 NM in the afternoon. .WED NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft. Wave Detail: SW 2 ft at 4 seconds and E 1 foot at 7 seconds. Patchy fog in the evening. A chance of showers after midnight. Vsby 1 to 3 NM in the evening. .THU...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 4 ft. Wave Detail: SW 3 ft at 4 seconds and E 1 foot at 7 seconds. A chance of showers in the morning. .THU NIGHT...SW winds 15 to 20 kt, diminishing to 10 to 15 kt after midnight. Gusts up to 25 kt. Seas 2 to 4 ft. .FRI THROUGH SAT NIGHT...S winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. 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. $$ ANZ235-151800- Rhode Island Sound- 107 AM EDT Tue Jul 15 2025 .REST OF TONIGHT...SW winds around 10 kt. Seas around 2 ft. Wave Detail: S 2 ft at 5 seconds. Patchy fog. A chance of showers and tstms. Vsby 1 NM or less. .TUE...SW winds 5 to 10 kt. Seas around 2 ft. Wave Detail: SW 2 ft at 4 seconds and SE 2 ft at 7 seconds. Patchy fog. A chance of showers and tstms in the morning. Vsby 1 NM or less. .TUE NIGHT...SW winds around 10 kt. Seas around 2 ft. Wave Detail: SW 2 ft at 4 seconds and SE 1 foot at 7 seconds. Patchy fog. Vsby 1 to 3 NM, decreasing to 1 NM or less after midnight. .WED...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: S 2 ft at 5 seconds and SE 1 foot at 9 seconds. Patchy fog. Vsby 1 NM or less, increasing to 1 to 3 NM in the afternoon. .WED NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Wave Detail: SW 3 ft at 5 seconds and SE 1 foot at 8 seconds. Patchy fog in the evening. A chance of showers after midnight. Vsby 1 to 3 NM in the evening. .THU...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 4 ft. Wave Detail: S 4 ft at 6 seconds. A chance of showers. .THU NIGHT...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to 4 ft. .FRI THROUGH SAT NIGHT...S winds 10 to 15 kt. Seas 2 to 4 ft. 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. $$ ANZ237-151800- Block Island Sound- 107 AM EDT Tue Jul 15 2025 .REST OF TONIGHT...SW winds 5 to 10 kt. Seas around 2 ft. Wave Detail: S 2 ft at 6 seconds. Patchy fog. A chance of showers and tstms. Vsby 1 NM or less. .TUE...SW winds 5 to 10 kt. Seas around 2 ft. Wave Detail: SE 2 ft at 7 seconds and SW 1 foot at 5 seconds. Patchy fog. A chance of showers in the morning. Vsby 1 NM or less, increasing to 1 to 3 NM in the afternoon. .TUE NIGHT...SW winds 5 to 10 kt. Seas around 2 ft. Wave Detail: S 2 ft at 5 seconds. Patchy fog. Vsby 1 NM or less. .WED...SW winds 5 to 10 kt. Gusts up to 20 kt in the afternoon. Seas around 2 ft. Wave Detail: SW 2 ft at 5 seconds and SE 1 foot at 7 seconds. Patchy fog in the morning with vsby 1 NM or less. .WED NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Wave Detail: SW 3 ft at 5 seconds and SE 1 foot at 8 seconds. A chance of showers and tstms after midnight. .THU...SW winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 3 ft. Wave Detail: SW 3 ft at 6 seconds and SE 1 foot at 6 seconds. A chance of showers. .THU NIGHT...SW winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 4 ft. .FRI THROUGH SAT...E winds 5 to 10 kt. Seas 2 to 4 ft. .SAT NIGHT...S winds 5 to 10 kt. Seas around 2 ft. Winds and seas higher in and near tstms. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ230-151800- Boston Harbor- 107 AM EDT Tue Jul 15 2025 .REST OF TONIGHT...SW winds 5 to 10 kt. Waves 1 foot or less. A chance of showers. .TUE...SW winds around 5 kt, becoming SE in the afternoon. Waves 1 foot or less. Patchy fog in the morning. A chance of showers in the morning. .TUE NIGHT...SW winds 5 to 10 kt. Waves 1 foot or less. .WED...SW winds around 5 kt, becoming S 10 to 15 kt in the afternoon. Waves 1 foot or less, then around 2 ft in the afternoon. Patchy fog in the morning with vsby 1 to 3 NM. .WED NIGHT...SW winds 10 to 15 kt. Waves around 2 ft in the evening, then 1 foot or less. .THU AND THU NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Waves around 2 ft. A chance of showers. A chance of tstms through the night. .FRI...NW winds around 10 kt. Waves around 2 ft. A chance of showers and tstms. .FRI NIGHT THROUGH SAT NIGHT...S winds 5 to 10 kt. Waves 1 foot or less. 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. $$ ANZ236-151800- Narragansett Bay- 107 AM EDT Tue Jul 15 2025 .REST OF TONIGHT...SW winds 5 to 10 kt. Waves around 2 ft. Patchy fog. A chance of showers and tstms. Vsby 1 NM or less. .TUE...SW winds 5 to 10 kt. Waves around 2 ft. Patchy fog in the morning. A chance of showers in the morning with vsby 1 NM or less. .TUE NIGHT...SW winds 5 to 10 kt. Waves 1 foot or less. Patchy fog. Vsby 1 to 3 NM, decreasing to 1 NM or less after midnight. .WED...SW winds 5 to 10 kt, becoming S 10 to 15 kt with gusts up to 20 kt in the afternoon. Waves 1 foot or less, then around 2 ft in the afternoon. Patchy fog in the morning with vsby 1 NM or less. .WED NIGHT AND THU...SW winds 10 to 15 kt with gusts up to 20 kt. Waves 2 to 3 ft. A chance of showers. A chance of tstms after midnight, then a chance of tstms in the afternoon. .THU NIGHT...SW winds 10 to 15 kt. Gusts up to 20 kt in the evening. Waves 2 to 3 ft. .FRI THROUGH SAT NIGHT...S winds 5 to 10 kt. Waves around 2 ft. Winds and waves higher in and near tstms. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ 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