Coastal Waters Forecast
Issued by NWS Boston, MA
Issued by NWS Boston, MA
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334 FZUS51 KBOX 080804 CWFBOX Coastal Waters Forecast for Massachusetts and Rhode Island National Weather Service Boston/Norton MA 403 AM EDT Wed May 8 2024 Coastal waters from the Merrimack River MA to Watch Hill RI out to 25 NM ANZ200-082100- 403 AM EDT Wed May 8 2024 .Synopsis for Massachusetts and Rhode Island coastal waters... A warm front lifts toward the waters into early today. The warm front lifts through most of the waters by late today. The trailing cold front slides through Thu night. A few showers and thunderstorms are possible with both fronts today. More steady widespread rain looks possible Thursday and again on Friday. Low clouds and fog will likely be prevalent through the weekend. $$ ANZ250-082100- Coastal waters east of Ipswich Bay and the Stellwagen Bank National Marine Sanctuary- 403 AM EDT Wed May 8 2024 .TODAY...S winds 5 to 10 kt, increasing to 10 to 15 kt with gusts up to 20 kt this afternoon. Seas 2 to 3 ft. Wave Detail: S 3 ft at 7 seconds and E 2 ft at 10 seconds. Patchy fog. Showers likely with a slight chance of tstms. Vsby 1 NM or less. .TONIGHT...W winds 5 to 10 kt with gusts up to 20 kt, becoming NW after midnight. Seas 2 to 3 ft. Wave Detail: S 3 ft at 5 seconds and E 2 ft at 10 seconds. Patchy fog. A chance of showers in the evening. Vsby 1 NM or less. .THU...N winds 5 to 10 kt, becoming NE 10 to 15 kt in the afternoon. Seas 2 to 3 ft. Wave Detail: NE 3 ft at 7 seconds and SE 2 ft at 6 seconds. Patchy fog in the morning. A chance of showers in the afternoon. Vsby 1 to 3 NM in the morning. .THU NIGHT...NE winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 5 ft. Wave Detail: NE 4 ft at 6 seconds and SE 1 foot at 6 seconds. A chance of showers. Vsby 1 to 3 NM in the evening. .FRI AND FRI NIGHT...NE winds 10 to 15 kt with gusts up to 20 kt. Seas 4 to 5 ft. Wave Detail: NE 4 ft at 6 seconds and SE 1 foot at 7 seconds. A chance of rain. .SAT THROUGH SUN NIGHT...E winds around 10 kt. Seas 3 to 5 ft. Wave Detail: E 5 ft at 7 seconds and SE 2 ft at 9 seconds. Winds and seas higher in and near tstms. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ251-082100- Massachusetts Bay and Ipswich Bay- 403 AM EDT Wed May 8 2024 .TODAY...SE winds 5 to 10 kt. Gusts up to 20 kt this afternoon. Seas around 2 ft. Wave Detail: SE 2 ft at 4 seconds and E 2 ft at 10 seconds. Patchy fog. Showers likely. A slight chance of tstms this morning, then a chance of tstms this afternoon. Some tstms may produce small hail this afternoon. Vsby 1 NM or less. .TONIGHT...N winds 5 to 10 kt, becoming NW after midnight. Seas around 2 ft. Wave Detail: SE 2 ft at 4 seconds and E 2 ft at 10 seconds. Patchy fog. A chance of showers in the evening. Vsby 1 NM or less. .THU...NE winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: NE 2 ft at 9 seconds and SE 1 foot at 4 seconds. Patchy fog in the morning. A chance of showers in the afternoon. Vsby 1 to 3 NM in the morning. .THU NIGHT...NE winds 10 to 15 kt, increasing to 15 to 20 kt after midnight. Seas 2 to 4 ft. Wave Detail: E 4 ft at 6 seconds. A chance of showers. Vsby 1 to 3 NM in the evening. .FRI AND FRI NIGHT...NE winds 15 to 20 kt. Seas 3 to 5 ft. Wave Detail: E 4 ft at 6 seconds. A chance of rain. .SAT AND SAT NIGHT...NE winds around 10 kt, becoming S. Seas 3 to 5 ft. Wave Detail: E 5 ft at 7 seconds and SE 1 foot at 8 seconds. .SUN AND SUN NIGHT...SE winds around 10 kt. Seas 2 to 3 ft. A chance of rain. 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. $$ ANZ231-082100- Cape Cod Bay- 403 AM EDT Wed May 8 2024 .TODAY...S winds 5 to 10 kt, increasing to 10 to 15 kt with gusts up to 20 kt this afternoon. Seas around 2 ft. Wave Detail: E 2 ft at 10 seconds and S 1 foot at 2 seconds. Showers likely with a slight chance of tstms. Patchy fog this morning. Vsby 1 NM or less. .TONIGHT...SW winds 5 to 10 kt with gusts up to 20 kt, becoming NW after midnight. Seas around 2 ft in the evening, then 1 foot or less. Wave Detail: SW 1 foot at 3 seconds and E 1 foot at 10 seconds, becoming SW 1 foot at 2 seconds and E 1 foot at 10 seconds. Patchy fog. A chance of showers in the evening. Vsby 1 NM or less. .THU...N winds 5 to 10 kt. Seas around 2 ft. Wave Detail: W 1 foot at 2 seconds and NE 1 foot at 10 seconds. Patchy fog in the morning. A chance of showers in the afternoon. Vsby 1 to 3 NM in the morning. .THU NIGHT...NE winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Wave Detail: NE 2 ft at 3 seconds. A chance of showers. .FRI AND FRI NIGHT...NE winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. Wave Detail: NE 2 ft at 4 seconds and S 1 foot at 3 seconds. A chance of rain in the morning. A chance of rain in the evening. .SAT THROUGH SUN NIGHT...E winds around 10 kt. Seas 2 to 3 ft. Wave Detail: NE 2 ft at 4 seconds. Winds and seas higher in and near tstms. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ254-082100- Coastal waters from Provincetown MA to Chatham MA to Nantucket MA out 20 nm- 403 AM EDT Wed May 8 2024 .TODAY...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 2 ft at 10 seconds. A chance of showers. A slight chance of tstms this afternoon. Patchy fog this morning. Vsby 1 NM or less. .TONIGHT...SW winds 10 to 15 kt with gusts up to 20 kt, becoming W 5 to 10 kt after midnight. Seas 2 to 3 ft. Wave Detail: S 3 ft at 6 seconds and E 2 ft at 10 seconds. Patchy fog. A chance of showers in the evening. Vsby 1 NM or less. .THU...NW winds 5 to 10 kt, becoming N 10 to 15 kt with gusts up to 20 kt in the afternoon. Seas 2 to 3 ft. Wave Detail: S 2 ft at 6 seconds and E 2 ft at 10 seconds. Patchy fog in the morning. A chance of showers in the afternoon. Vsby 1 NM or less in the morning. .THU NIGHT...NE winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 5 ft. Wave Detail: NE 3 ft at 6 seconds and S 2 ft at 6 seconds. A chance of showers. .FRI...NE winds 10 to 15 kt. Gusts up to 20 kt in the morning. Seas 4 to 6 ft. Wave Detail: NE 4 ft at 6 seconds and S 2 ft at 7 seconds. A chance of showers in the morning. .FRI NIGHT...NE winds around 10 kt. Seas 4 to 6 ft. Wave Detail: NE 4 ft at 7 seconds and S 3 ft at 8 seconds. .SAT THROUGH SUN NIGHT...SE winds around 10 kt. Seas 3 to 5 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. $$ ANZ255-082100- Coastal Waters extending out to 25 nm South of Marthas Vineyard and Nantucket- 403 AM EDT Wed May 8 2024 .TODAY...S winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 4 ft. Wave Detail: S 3 ft at 7 seconds and E 2 ft at 10 seconds. Patchy fog. A chance of showers. Isolated tstms this afternoon. Vsby 1 NM or less. .TONIGHT...SW winds 10 to 15 kt with gusts up to 20 kt, becoming W 5 to 10 kt after midnight. Seas 2 to 4 ft. Wave Detail: S 3 ft at 6 seconds and E 2 ft at 10 seconds. Patchy fog. A chance of showers in the evening. Vsby 1 NM or less. .THU...NW winds 5 to 10 kt, becoming NE 10 to 15 kt with gusts up to 20 kt in the afternoon. Seas 2 to 3 ft. Wave Detail: S 3 ft at 6 seconds and E 2 ft at 10 seconds. Patchy fog in the morning. A chance of showers in the afternoon. Vsby 1 NM or less, increasing to 1 to 3 NM in the afternoon. .THU NIGHT...NE winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 4 ft. Wave Detail: NE 3 ft at 6 seconds and S 2 ft at 6 seconds. A chance of showers. Vsby 1 to 3 NM in the evening. .FRI AND FRI NIGHT...NE winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 5 ft. Wave Detail: NE 3 ft at 5 seconds and S 3 ft at 8 seconds. .SAT THROUGH SUN NIGHT...S winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 5 ft. Wave Detail: E 4 ft at 8 seconds and SW 3 ft at 8 seconds. Winds and seas higher in and near tstms. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ256-082100- Coastal Waters from Montauk NY to Marthas Vineyard extending out to 20 nm South of Block Island- 403 AM EDT Wed May 8 2024 .TODAY...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 2 ft at 10 seconds. Patchy fog. A chance of showers. Isolated tstms this afternoon. Vsby 1 NM or less. .TONIGHT...SW winds 10 to 15 kt with gusts up to 20 kt, becoming W 5 to 10 kt after midnight. Seas around 3 ft. Wave Detail: S 3 ft at 7 seconds and E 2 ft at 10 seconds. Patchy fog. A chance of showers in the evening. Vsby 1 NM or less. .THU...NW winds 5 to 10 kt, becoming NE 10 to 15 kt in the afternoon. Seas 2 to 3 ft. Wave Detail: S 3 ft at 7 seconds and E 1 foot at 10 seconds. Patchy fog in the morning. A chance of showers in the afternoon. Vsby 1 NM or less, increasing to 1 to 3 NM in the afternoon. .THU NIGHT...NE winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 4 ft. Wave Detail: SE 3 ft at 6 seconds and E 3 ft at 10 seconds. A chance of showers. Vsby 1 NM or less in the evening. .FRI...NE winds 10 to 15 kt with gusts up to 20 kt. Seas 4 to 5 ft. Wave Detail: NE 3 ft at 6 seconds and S 3 ft at 8 seconds. A chance of showers in the morning. .FRI NIGHT...NE winds 10 to 15 kt with gusts up to 20 kt. Seas 4 to 5 ft. Wave Detail: E 3 ft at 6 seconds and S 3 ft at 8 seconds. .SAT THROUGH SUN NIGHT...S winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 5 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. $$ ANZ232-082100- Nantucket Sound- 403 AM EDT Wed May 8 2024 .TODAY...S winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 3 ft. Wave Detail: S 2 ft at 4 seconds and E 1 foot at 10 seconds. A chance of showers. Isolated tstms this afternoon. Patchy fog this morning. Vsby 1 NM or less. .TONIGHT...SW winds 10 to 15 kt with gusts up to 20 kt, becoming W around 5 kt after midnight. Seas around 2 ft. Wave Detail: SW 2 ft at 5 seconds and E 1 foot at 10 seconds. Patchy fog. A chance of showers in the evening. Vsby 1 NM or less. .THU...NW winds 5 to 10 kt, becoming NE 10 to 15 kt with gusts up to 20 kt in the afternoon. Seas around 2 ft. Wave Detail: NE 2 ft at 9 seconds and SW 1 foot at 5 seconds. Patchy fog in the morning. A chance of showers in the afternoon. Vsby 1 NM or less in the morning. .THU NIGHT...NE winds 10 to 15 kt. Gusts up to 20 kt in the evening. Seas 2 to 3 ft. Wave Detail: NE 2 ft at 4 seconds and S 1 foot at 6 seconds. A chance of showers. .FRI...NE winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Wave Detail: NE 2 ft at 4 seconds and S 1 foot at 6 seconds. A chance of showers in the morning. .FRI NIGHT...NE winds around 10 kt. Seas 2 to 3 ft. Wave Detail: NE 2 ft at 6 seconds and S 1 foot at 8 seconds. .SAT THROUGH SUN NIGHT...SE winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Winds and seas higher in and near tstms. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ233-082100- Vineyard Sound- 403 AM EDT Wed May 8 2024 .TODAY...S winds 5 to 10 kt, increasing to 10 to 15 kt with gusts up to 20 kt this afternoon. Seas around 2 ft. Wave Detail: S 2 ft at 5 seconds and E 1 foot at 11 seconds. Patchy fog. A chance of showers with isolated tstms. Vsby 1 NM or less. .TONIGHT...SW winds 5 to 10 kt. Gusts up to 20 kt in the evening. Seas around 2 ft. Wave Detail: SW 2 ft at 5 seconds and E 1 foot at 11 seconds. Patchy fog. A chance of showers in the evening. Vsby 1 NM or less. .THU...NW winds around 5 kt, becoming NE in the afternoon. Seas around 2 ft. Wave Detail: SW 2 ft at 5 seconds and E 1 foot at 12 seconds. Patchy fog in the morning. A chance of showers in the afternoon. Vsby 1 NM or less in the morning. .THU NIGHT...NE winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft. Wave Detail: NE 2 ft at 4 seconds and S 1 foot at 6 seconds. A chance of showers. .FRI...NE winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Wave Detail: NE 2 ft at 3 seconds and S 1 foot at 7 seconds. A chance of showers in the morning. .FRI NIGHT...NE winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: NE 2 ft at 4 seconds and S 2 ft at 8 seconds. .SAT THROUGH SUN NIGHT...SE winds 10 to 15 kt with gusts up to 20 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. $$ ANZ234-082100- Buzzards Bay- 403 AM EDT Wed May 8 2024 .TODAY...S winds 5 to 10 kt, increasing to 10 to 15 kt this afternoon. Gusts up to 20 kt. Seas around 2 ft. Wave Detail: S 2 ft at 4 seconds and E 1 foot at 10 seconds. Patchy fog. Isolated tstms. Showers likely this morning, then a chance of showers this afternoon. Vsby 1 NM or less. .TONIGHT...SW winds 5 to 10 kt, becoming W after midnight. Seas around 2 ft. Wave Detail: SW 2 ft at 5 seconds and E 1 foot at 11 seconds. Patchy fog. A chance of showers in the evening. Vsby 1 NM or less. .THU...NW winds 5 to 10 kt, becoming NE 10 to 15 kt with gusts up to 20 kt in the afternoon. Seas around 2 ft. Wave Detail: SW 1 foot at 5 seconds and E 1 foot at 11 seconds. Patchy fog in the morning. A chance of showers in the afternoon. Vsby 1 NM or less in the morning. .THU NIGHT...NE winds 10 to 15 kt. Gusts up to 20 kt in the evening. Seas around 2 ft. Wave Detail: NE 2 ft at 3 seconds and S 1 foot at 6 seconds. A chance of showers. .FRI...NE winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Wave Detail: NE 2 ft at 3 seconds and S 1 foot at 6 seconds. A chance of showers in the morning. .FRI NIGHT...NE winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: NE 2 ft at 3 seconds and S 1 foot at 7 seconds. A chance of rain in the evening. .SAT THROUGH SUN NIGHT...E winds around 10 kt with gusts up to 20 kt. Seas around 2 ft. Winds and seas higher in and near tstms. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ235-082100- Rhode Island Sound- 403 AM EDT Wed May 8 2024 .TODAY...S winds 10 to 15 kt. Gusts up to 20 kt this afternoon. Seas 2 to 3 ft. Wave Detail: S 3 ft at 7 seconds and SE 1 foot at 11 seconds. Patchy fog. A chance of showers with isolated tstms. Vsby 1 NM or less. .TONIGHT...SW winds 10 to 15 kt with gusts up to 20 kt, becoming W around 5 kt after midnight. Seas 2 to 3 ft. Wave Detail: S 3 ft at 6 seconds and E 1 foot at 11 seconds. Patchy fog. A chance of showers in the evening. Vsby 1 NM or less. .THU...NW winds 5 to 10 kt, becoming E 10 to 15 kt with gusts up to 20 kt in the afternoon. Seas around 2 ft. Wave Detail: S 2 ft at 6 seconds and E 1 foot at 12 seconds. Patchy fog in the morning. A chance of showers in the afternoon. Vsby 1 NM or less in the morning. .THU NIGHT...NE winds around 15 kt. Gusts up to 20 kt in the evening. Seas 2 to 3 ft. Wave Detail: S 2 ft at 6 seconds and E 2 ft at 11 seconds. A chance of showers. .FRI AND FRI NIGHT...NE 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 NE 2 ft at 4 seconds. A chance of rain. .SAT THROUGH SUN NIGHT...E winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Wave Detail: S 3 ft at 8 seconds and NE 1 foot at 7 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. $$ ANZ237-082100- Block Island Sound- 403 AM EDT Wed May 8 2024 .TODAY...S winds 10 to 15 kt. Gusts up to 20 kt this afternoon. Seas 2 to 3 ft. Wave Detail: S 3 ft at 6 seconds and E 2 ft at 11 seconds. Patchy fog. A chance of showers with isolated tstms. Vsby 1 NM or less. .TONIGHT...W winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: SW 3 ft at 6 seconds and E 1 foot at 11 seconds. Patchy fog. Vsby 1 NM or less. .THU...NW winds around 5 kt, becoming E in the afternoon. Seas around 2 ft. Wave Detail: S 2 ft at 6 seconds and E 1 foot at 10 seconds. Patchy fog in the morning. A chance of showers in the afternoon. Vsby 1 NM or less in the morning. .THU NIGHT...NE winds 10 to 15 kt. Gusts up to 20 kt in the evening. Seas 2 to 3 ft. Wave Detail: SE 2 ft at 6 seconds and E 2 ft at 11 seconds. Showers likely, mainly in the evening with vsby 1 to 3 NM. .FRI AND FRI NIGHT...NE winds around 10 kt with gusts up to 20 kt. Seas 3 to 4 ft. Wave Detail: S 3 ft at 8 seconds and E 2 ft at 5 seconds. A chance of rain. .SAT THROUGH SUN NIGHT...E winds around 10 kt with gusts up to 20 kt. Seas 2 to 3 ft. Wave Detail: S 3 ft at 8 seconds and E 2 ft at 8 seconds. Winds and seas higher in and near tstms. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ230-082100- Boston Harbor- 403 AM EDT Wed May 8 2024 .TODAY...SE winds 5 to 10 kt. Waves 1 foot or less. Showers. A slight chance of tstms this morning, then a chance of tstms this afternoon. Some tstms may produce small hail this afternoon. Vsby 1 to 3 NM. .TONIGHT...NE winds 5 to 10 kt, becoming NW after midnight. Waves 1 foot or less. Patchy fog. A chance of showers in the evening. Vsby 1 to 3 NM. .THU...N winds 5 to 10 kt, becoming NE 10 to 15 kt in the afternoon. Waves 1 foot or less, then around 2 ft in the afternoon. Patchy fog in the morning. A chance of showers in the afternoon. Vsby 1 to 3 NM in the morning. .THU NIGHT...NE winds 15 to 20 kt. Waves 2 to 3 ft. Showers likely, mainly in the evening. .FRI AND FRI NIGHT...NE winds 15 to 20 kt. Waves 2 to 3 ft. A chance of rain. .SAT...NE winds around 10 kt. Waves 2 to 3 ft. .SAT NIGHT...S winds 5 to 10 kt. Waves around 2 ft. .SUN AND SUN NIGHT...SE winds 5 to 10 kt, becoming E. Waves around 2 ft. A chance of rain. 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. $$ ANZ236-082100- Narragansett Bay- 403 AM EDT Wed May 8 2024 .TODAY...S winds 5 to 10 kt. Gusts up to 20 kt this afternoon. Waves around 2 ft. Patchy fog. A slight chance of tstms. Showers likely this morning, then a chance of showers this afternoon. Vsby 1 NM or less. .TONIGHT...SW winds 5 to 10 kt, becoming W after midnight. Waves around 2 ft. Patchy fog. A chance of showers in the evening. Vsby 1 NM or less. .THU...NW winds 5 to 10 kt, becoming NE in the afternoon. Waves around 2 ft. Patchy fog in the morning. A chance of showers in the afternoon. Vsby 1 NM or less in the morning. .THU NIGHT...NE winds 10 to 15 kt. Gusts up to 20 kt in the evening. Waves 2 to 3 ft. Showers likely, mainly in the evening. .FRI AND FRI NIGHT...N winds 10 to 15 kt with gusts up to 20 kt. Waves 2 to 3 ft. A chance of rain. .SAT THROUGH SUN NIGHT...E winds 5 to 10 kt with gusts up to 20 kt. Waves 2 to 3 ft. Winds and waves higher in and near tstms. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ 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