Coastal Waters Forecast
Issued by NWS Boston, MA
Issued by NWS Boston, MA
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079 FZUS51 KBOX 191705 CWFBOX Coastal Waters Forecast for Massachusetts and Rhode Island National Weather Service Boston/Norton MA 105 PM EDT Sun May 19 2024 Coastal waters from the Merrimack River MA to Watch Hill RI out to 25 NM ANZ200-200600- 105 PM EDT Sun May 19 2024 .Synopsis for Massachusetts and Rhode Island coastal waters... Slow moving low pres will continue to bring cloudy, showery weather with northeast breezes today. High pres over coastal Maine then settles over the waters on Mon and continues thru Wed. A cold front brings the risk for showers and thunderstorms on Thurs. High pres then builds in for Fri into early Memorial Day Weekend. $$ ANZ250-200600- Coastal waters east of Ipswich Bay and the Stellwagen Bank National Marine Sanctuary- 105 PM EDT Sun May 19 2024 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT... .THIS AFTERNOON...NE winds around 15 kt with gusts up to 20 kt. Seas 5 to 6 ft. Wave Detail: E 5 ft at 8 seconds and NE 1 foot at 3 seconds. Patchy fog. A chance of rain and drizzle. Vsby 1 NM or less. .TONIGHT...NE winds 10 to 15 kt with gusts up to 20 kt, diminishing to 5 to 10 kt after midnight. Seas 4 to 6 ft. Wave Detail: E 5 ft at 8 seconds. Patchy fog. A chance of drizzle. Vsby 1 to 3 NM. .MON...NE winds 5 to 10 kt, becoming E in the afternoon. Seas 3 to 5 ft. Wave Detail: E 4 ft at 8 seconds. Patchy fog in the morning with vsby 1 to 3 NM. .MON NIGHT...S winds 5 to 10 kt. Seas 3 to 4 ft. Wave Detail: E 4 ft at 8 seconds. .TUE AND TUE NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 4 ft. Wave Detail: E 4 ft at 9 seconds and SW 3 ft at 4 seconds. .WED THROUGH THU...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. Wave Detail: SW 3 ft at 4 seconds and E 3 ft at 8 seconds. .THU NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. A chance of showers. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ251-200600- Massachusetts Bay and Ipswich Bay- 105 PM EDT Sun May 19 2024 .THIS AFTERNOON...NE winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 5 ft. Wave Detail: E 5 ft at 8 seconds and NE 1 foot at 3 seconds. Patchy fog. A chance of rain and drizzle. Vsby 1 to 3 NM. .TONIGHT...NE winds 10 to 15 kt with gusts up to 20 kt, diminishing to 5 to 10 kt after midnight. Seas 3 to 5 ft. Wave Detail: E 5 ft at 8 seconds and NE 1 foot at 3 seconds. Patchy fog. A chance of drizzle. A chance of rain in the evening. Vsby 1 to 3 NM. .MON...NE winds 5 to 10 kt, becoming E in the afternoon. Seas 2 to 4 ft. Wave Detail: E 4 ft at 8 seconds. Patchy fog in the morning with vsby 1 to 3 NM. .MON NIGHT...S winds 5 to 10 kt. Seas 2 to 4 ft. Wave Detail: E 4 ft at 8 seconds. .TUE AND TUE NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Wave Detail: E 3 ft at 9 seconds and S 2 ft at 4 seconds. .WED THROUGH THU...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Wave Detail: E 3 ft at 8 seconds and SW 2 ft at 3 seconds. .THU NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 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. $$ ANZ231-200600- Cape Cod Bay- 105 PM EDT Sun May 19 2024 .THIS AFTERNOON...NE winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. Wave Detail: E 3 ft at 7 seconds and N 2 ft at 4 seconds. Patchy fog. A chance of rain and drizzle. Vsby 1 NM or less. .TONIGHT...NE winds 10 to 15 kt. Gusts up to 20 kt in the evening. Seas 2 to 4 ft. Wave Detail: E 3 ft at 7 seconds and N 2 ft at 4 seconds. Patchy fog. A chance of drizzle. Vsby 1 to 3 NM. .MON...NE winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: E 3 ft at 8 seconds and N 1 foot at 4 seconds. Patchy fog in the morning with vsby 1 to 3 NM. .MON NIGHT...SE winds around 5 kt, becoming SW after midnight. Seas around 2 ft. Wave Detail: E 2 ft at 8 seconds and NE 1 foot at 3 seconds. .TUE AND TUE NIGHT...SW winds 10 to 15 kt. Seas around 2 ft. Wave Detail: E 2 ft at 8 seconds and S 1 foot at 3 seconds. .WED THROUGH THU...SW winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft. Wave Detail: SW 2 ft at 3 seconds and E 2 ft at 8 seconds. .THU NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft. A chance of showers. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ254-200600- Coastal waters from Provincetown MA to Chatham MA to Nantucket MA out 20 nm- 105 PM EDT Sun May 19 2024 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH MONDAY AFTERNOON... .THIS AFTERNOON...NE winds around 15 kt with gusts up to 20 kt. Seas 4 to 6 ft. Wave Detail: E 5 ft at 7 seconds and NE 1 foot at 3 seconds. Patchy fog. A chance of rain and drizzle. Vsby 1 NM or less. .TONIGHT...NE winds 10 to 15 kt with gusts up to 20 kt. Seas 4 to 6 ft. Wave Detail: E 5 ft at 7 seconds and NE 1 foot at 3 seconds. Patchy fog. A chance of drizzle. Vsby 1 NM or less, increasing to 1 to 3 NM after midnight. .MON...NE winds 5 to 10 kt. Seas 3 to 5 ft. Wave Detail: E 5 ft at 8 seconds and SE 1 foot at 11 seconds. Patchy fog in the morning with vsby 1 to 3 NM. .MON NIGHT...E winds 5 to 10 kt, becoming S after midnight. Seas 3 to 5 ft. Wave Detail: E 4 ft at 8 seconds. .TUE AND TUE NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 4 ft. Wave Detail: E 4 ft at 9 seconds and SW 2 ft at 3 seconds. .WED THROUGH THU NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 4 ft. Wave Detail: SW 3 ft at 4 seconds and E 3 ft at 8 seconds. 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. $$ ANZ255-200600- Coastal Waters extending out to 25 nm South of Marthas Vineyard and Nantucket- 105 PM EDT Sun May 19 2024 .THIS AFTERNOON...NE winds around 15 kt with gusts up to 20 kt. Seas 3 to 5 ft. Wave Detail: E 4 ft at 7 seconds and N 2 ft at 4 seconds. Patchy fog. A chance of drizzle with a slight chance of rain. Vsby 1 NM or less. .TONIGHT...NE winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 5 ft. Wave Detail: E 4 ft at 7 seconds and N 2 ft at 4 seconds. Patchy fog. A chance of drizzle. Vsby 1 NM or less, increasing to 1 to 3 NM after midnight. .MON...NE winds 10 to 15 kt. Seas 2 to 4 ft. Wave Detail: E 4 ft at 8 seconds and NE 1 foot at 3 seconds. Patchy fog in the morning with vsby 1 to 3 NM. .MON NIGHT...E winds 5 to 10 kt, becoming S after midnight. Seas 2 to 4 ft. Wave Detail: E 4 ft at 8 seconds and NE 1 foot at 3 seconds. .TUE AND TUE NIGHT...SW winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: E 3 ft at 8 seconds and SW 2 ft at 3 seconds. .WED THROUGH THU NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. Wave Detail: SW 4 ft at 5 seconds and E 3 ft at 8 seconds. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ256-200600- Coastal Waters from Montauk NY to Marthas Vineyard extending out to 20 nm South of Block Island- 105 PM EDT Sun May 19 2024 .THIS AFTERNOON...NE winds around 15 kt with gusts up to 20 kt. Seas 3 to 4 ft. Wave Detail: E 4 ft at 8 seconds and N 2 ft at 4 seconds. Patchy fog. Vsby 1 to 3 NM. .TONIGHT...NE winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 4 ft. Wave Detail: E 4 ft at 7 seconds and N 2 ft at 4 seconds. Patchy fog. A chance of drizzle. Vsby 1 to 3 NM, decreasing to 1 NM or less after midnight. .MON...NE winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: E 3 ft at 8 seconds and N 2 ft at 3 seconds. Patchy fog in the morning with vsby 1 to 3 NM. .MON NIGHT...SE winds around 5 kt, becoming SW after midnight. Seas 2 to 3 ft. Wave Detail: E 3 ft at 8 seconds and NE 1 foot at 3 seconds. Patchy fog after midnight with vsby 1 to 3 NM. .TUE AND TUE NIGHT...SW winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: E 3 ft at 8 seconds and SW 2 ft at 4 seconds. .WED THROUGH THU...SW 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 E 3 ft at 8 seconds. .THU NIGHT...SW winds 10 to 15 kt with gusts up 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. $$ ANZ232-200600- Nantucket Sound- 105 PM EDT Sun May 19 2024 .THIS AFTERNOON...NE winds around 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. Wave Detail: NE 2 ft at 4 seconds and SE 2 ft at 7 seconds. Patchy fog. A chance of drizzle with a slight chance of rain. Vsby 1 NM or less. .TONIGHT...NE winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. Wave Detail: E 3 ft at 7 seconds and NE 2 ft at 4 seconds. Patchy fog. A chance of drizzle. Vsby 1 NM or less, increasing to 1 to 3 NM after midnight. .MON...NE winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: E 2 ft at 8 seconds and NE 1 foot at 3 seconds. Patchy fog in the morning with vsby 1 to 3 NM. .MON NIGHT...E winds 5 to 10 kt, becoming SW after midnight. Seas 2 to 3 ft. Wave Detail: E 2 ft at 8 seconds and NE 1 foot at 3 seconds. .TUE AND TUE NIGHT...SW winds 10 to 15 kt. Seas around 2 ft. Wave Detail: SW 2 ft at 3 seconds and E 2 ft at 8 seconds. .WED THROUGH THU NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Wave Detail: SW 2 ft at 4 seconds and E 2 ft at 8 seconds. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ233-200600- Vineyard Sound- 105 PM EDT Sun May 19 2024 .THIS AFTERNOON...NE winds 10 to 15 kt with gusts up to 25 kt. Seas around 2 ft. Wave Detail: N 2 ft at 4 seconds and S 1 foot at 7 seconds. Patchy fog. A chance of drizzle with a slight chance of rain. .TONIGHT...NE winds 10 to 15 kt. Gusts up to 20 kt in the evening. Seas around 2 ft. Wave Detail: N 2 ft at 4 seconds and S 1 foot at 7 seconds. Patchy fog. A chance of drizzle. Vsby 1 to 3 NM. .MON...NE winds 5 to 10 kt. Seas around 2 ft. Wave Detail: N 1 foot at 3 seconds and E 1 foot at 8 seconds. Patchy fog in the morning with vsby 1 to 3 NM. .MON NIGHT...SE winds around 5 kt, becoming SW after midnight. Seas 1 foot or less. Wave Detail: NE 1 foot at 2 seconds and SE 1 foot at 4 seconds. .TUE AND TUE NIGHT...SW winds 5 to 10 kt. Seas 1 foot or less. Wave Detail: SW 1 foot at 2 seconds and SW 1 foot at 6 seconds. .WED THROUGH THU...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 8 seconds. .THU NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 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. $$ ANZ234-200600- Buzzards Bay- 105 PM EDT Sun May 19 2024 .THIS AFTERNOON...NE winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft. Wave Detail: N 2 ft at 4 seconds and E 2 ft at 7 seconds. Patchy fog. A chance of drizzle with a slight chance of rain. .TONIGHT...NE winds 10 to 15 kt. Gusts up to 20 kt in the evening. Seas around 2 ft. Wave Detail: N 2 ft at 4 seconds and E 2 ft at 7 seconds. Patchy fog. A chance of drizzle. Vsby 1 to 3 NM. .MON...NE winds 5 to 10 kt. Seas 1 foot or less. Wave Detail: N 1 foot at 3 seconds and E 1 foot at 8 seconds. Patchy fog in the morning with vsby 1 to 3 NM. .MON NIGHT...SE winds around 5 kt, becoming SW after midnight. Seas 1 foot or less. Wave Detail: E 1 foot at 3 seconds and E 1 foot at 8 seconds. .TUE AND TUE NIGHT...SW winds 5 to 10 kt. Seas 1 foot or less. Wave Detail: SW 1 foot at 2 seconds and SW 1 foot at 6 seconds. .WED THROUGH THU...SW winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft. Wave Detail: SW 2 ft at 4 seconds and E 1 foot at 8 seconds. .THU NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft. A chance of showers. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ235-200600- Rhode Island Sound- 105 PM EDT Sun May 19 2024 .THIS AFTERNOON...NE winds around 15 kt with gusts up to 25 kt. Seas 2 to 3 ft. Wave Detail: N 2 ft at 4 seconds and SE 2 ft at 7 seconds. Patchy fog. .TONIGHT...NE winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Wave Detail: N 2 ft at 4 seconds and SE 2 ft at 7 seconds. Patchy fog. A chance of drizzle. Vsby 1 to 3 NM. .MON...NE winds 5 to 10 kt, becoming E in the afternoon. Seas around 2 ft. Wave Detail: N 2 ft at 3 seconds and SE 2 ft at 7 seconds. Patchy fog in the morning with vsby 1 to 3 NM. .MON NIGHT...S winds 5 to 10 kt. Seas around 2 ft. Wave Detail: SE 2 ft at 8 seconds and SE 1 foot at 2 seconds. .TUE AND TUE NIGHT...SW winds 10 to 15 kt. Seas around 2 ft. Wave Detail: SW 2 ft at 4 seconds and E 2 ft at 8 seconds. .WED THROUGH THU...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 2 ft at 8 seconds. .THU NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 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. $$ ANZ237-200600- Block Island Sound- 105 PM EDT Sun May 19 2024 .THIS AFTERNOON...NE winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Wave Detail: E 3 ft at 8 seconds and NE 2 ft at 3 seconds. .TONIGHT...NE winds 10 to 15 kt. Gusts up to 20 kt in the evening. Seas 2 to 3 ft. Wave Detail: SE 3 ft at 7 seconds and NE 2 ft at 4 seconds. Patchy fog. Vsby 1 to 3 NM. .MON...NE winds 5 to 10 kt, becoming E in the afternoon. Seas around 2 ft. Wave Detail: E 2 ft at 8 seconds and NE 1 foot at 3 seconds. Patchy fog in the morning with vsby 1 to 3 NM. .MON NIGHT...SW winds around 5 kt. Seas around 2 ft. Wave Detail: E 2 ft at 8 seconds and NE 1 foot at 3 seconds. .TUE AND TUE NIGHT...SW winds 5 to 10 kt. Seas around 2 ft. Wave Detail: SE 2 ft at 9 seconds and SW 1 foot at 6 seconds. .WED THROUGH THU...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Wave Detail: SW 2 ft at 4 seconds and E 2 ft at 9 seconds. .THU NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. A chance of showers. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ230-200600- Boston Harbor- 105 PM EDT Sun May 19 2024 .THIS AFTERNOON...NE winds 10 to 15 kt with gusts up to 20 kt. Waves 2 to 3 ft. Patchy fog. A chance of rain and drizzle. Vsby 1 to 3 NM. .TONIGHT...NE winds 5 to 10 kt. Waves 2 to 3 ft in the evening, then 1 foot or less. Patchy fog. A chance of drizzle. A chance of rain in the evening. Vsby 1 to 3 NM. .MON...E winds 5 to 10 kt. Waves 1 foot or less. Patchy fog in the morning with vsby 1 to 3 NM. .MON NIGHT...SE winds 5 to 10 kt, becoming SW after midnight. Waves 1 foot or less. .TUE AND TUE NIGHT...SW winds 10 to 15 kt. Waves around 2 ft. .WED THROUGH THU...SW winds 10 to 15 kt with gusts up to 20 kt. Waves around 2 ft. A chance of. .THU NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Waves around 2 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. $$ ANZ236-200600- Narragansett Bay- 105 PM EDT Sun May 19 2024 .THIS AFTERNOON...NE winds 10 to 15 kt with gusts up to 20 kt. Waves around 2 ft. A chance of drizzle. .TONIGHT...NE winds 10 to 15 kt with gusts up to 20 kt, diminishing to 5 to 10 kt after midnight. Waves around 2 ft. Patchy fog. A chance of drizzle. Vsby 1 to 3 NM. .MON...NE winds 5 to 10 kt, becoming E in the afternoon. Waves 1 foot or less. Patchy fog in the morning with vsby 1 to 3 NM. .MON NIGHT...S winds around 5 kt. Waves around 2 ft. .TUE AND TUE NIGHT...SW winds 5 to 10 kt. Waves around 2 ft. .WED THROUGH THU...SW winds 10 to 15 kt with gusts up to 20 kt. Waves 2 to 3 ft. .THU NIGHT...SW winds 10 to 15 kt. Waves 2 to 3 ft. A chance of showers. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ 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