679 FZUS51 KBOX 020502 CWFBOX Coastal Waters Forecast for Massachusetts and Rhode Island National Weather Service Boston/Norton MA 102 AM EDT Tue May 2 2023 Coastal waters from the Merrimack River MA to Watch Hill RI out to 25 NM ANZ200-021800- 102 AM EDT Tue May 2 2023 .Synopsis for Massachusetts and Rhode Island coastal waters... Low pressure over the Great lakes will maintain south to southeast winds into Wednesday. The Low will gradually drift east to the Southern New England offshore waters by Thursday. High pressure builds over the waters through the weekend. $$ ANZ250-021800- Coastal waters east of Ipswich Bay and the Stellwagen Bank National Marine Sanctuary- 102 AM EDT Tue May 2 2023 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT... .REST OF TONIGHT...S winds 10 to 15 kt. Seas 5 to 7 ft. .TUE...SE winds 15 to 20 kt. Seas 5 to 6 ft. A chance of showers. .TUE NIGHT...S winds 10 to 15 kt with gusts up to 20 kt, diminishing to 5 to 10 kt after midnight. Seas 4 to 6 ft. A chance of showers. .WED...SE winds 5 to 10 kt. Seas 3 to 4 ft. A chance of showers. .WED NIGHT...E winds 10 to 15 kt, increasing to 15 to 20 kt after midnight. Gusts up to 25 kt. Seas 4 to 6 ft. Showers likely. .THU...NE winds 20 to 25 kt, becoming N 15 to 20 kt in the afternoon. Gusts up to 30 kt. Seas 5 to 7 ft. Showers likely. .THU NIGHT...N winds 15 to 20 kt with gusts up to 25 kt. Seas 6 to 7 ft. A chance of showers. .FRI...N winds 15 to 20 kt with gusts up to 25 kt. Seas 5 to 6 ft. A chance of showers. .FRI NIGHT...NW winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 5 ft. .SAT AND SAT NIGHT...NW winds 5 to 10 kt, becoming W 10 to 15 kt. Seas 2 to 4 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ251-021800- Massachusetts Bay and Ipswich Bay- 102 AM EDT Tue May 2 2023 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS AFTERNOON... .REST OF TONIGHT...S winds 10 to 15 kt. Seas 3 to 5 ft. .TUE...S winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 5 ft. A chance of showers. .TUE NIGHT...S winds 10 to 15 kt with gusts up to 20 kt, diminishing to 5 to 10 kt after midnight. Seas 3 to 4 ft. A chance of showers. .WED...SE winds 5 to 10 kt, increasing to 10 to 15 kt in the afternoon. Seas 2 to 4 ft. A chance of showers. .WED NIGHT...E winds 10 to 15 kt, increasing to 15 to 20 kt after midnight. Gusts up to 25 kt. Seas 3 to 5 ft. Showers likely. .THU...NE winds 20 to 25 kt with gusts up to 30 kt. Seas 4 to 6 ft. Showers likely. .THU NIGHT...N winds 15 to 20 kt, diminishing to 10 to 15 kt after midnight. Gusts up to 25 kt. Seas 4 to 6 ft. A chance of showers. .FRI AND FRI NIGHT...N winds 10 to 15 kt with gusts up to 20 kt, becoming NW. Seas 3 to 5 ft. .SAT AND SAT NIGHT...N winds 5 to 10 kt, becoming W. Seas 2 to 3 ft. 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. $$ ANZ231-021800- Cape Cod Bay- 102 AM EDT Tue May 2 2023 .REST OF TONIGHT...S winds around 10 kt. Seas 2 to 3 ft. .TUE...S winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. A chance of showers. .TUE NIGHT...S winds 10 to 15 kt with gusts up to 20 kt, diminishing to 5 to 10 kt after midnight. Seas 2 to 3 ft. .WED...S winds 5 to 10 kt. Seas around 2 ft. A chance of showers. .WED NIGHT...E winds 5 to 10 kt, increasing to 10 to 15 kt with gusts up to 20 kt after midnight. Seas 2 to 4 ft. Showers likely. .THU...NE winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to 5 ft. Showers likely. .THU NIGHT...N winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to 5 ft. A chance of showers. .FRI...N winds around 15 kt with gusts up to 25 kt. Seas 3 to 4 ft. A chance of showers. .FRI NIGHT AND SAT...N winds 10 to 15 kt. Gusts up to 20 kt. Seas 2 to 4 ft. .SAT NIGHT...W winds 5 to 10 kt. Seas around 2 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ254-021800- Coastal waters from Provincetown MA to Chatham MA to Nantucket MA out 20 nm- 102 AM EDT Tue May 2 2023 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH WEDNESDAY MORNING... .REST OF TONIGHT...S winds 10 to 15 kt with gusts up to 20 kt. Seas 5 to 8 ft. .TUE...SE winds 15 to 20 kt, becoming S 10 to 15 kt in the afternoon. Seas 5 to 7 ft. A chance of showers. .TUE NIGHT...S winds 10 to 15 kt with gusts up to 20 kt, diminishing to 5 to 10 kt after midnight. Seas 4 to 6 ft. .WED...S winds 5 to 10 kt. Seas 3 to 5 ft. .WED NIGHT...E winds 5 to 10 kt, increasing to 10 to 15 kt with gusts up to 20 kt after midnight. Seas 4 to 6 ft. A chance of showers. .THU AND THU NIGHT...N winds 15 to 20 kt with gusts up to 25 kt. Seas 5 to 8 ft. A chance of showers. .FRI AND FRI NIGHT...N winds 15 to 20 kt, diminishing to 10 to 15 kt. Gusts up to 25 kt. Seas 4 to 7 ft. .SAT AND SAT NIGHT...NW winds 10 to 15 kt with gusts up to 20 kt, becoming W. Seas 2 to 4 ft. 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. $$ ANZ255-021800- Coastal Waters extending out to 25 nm South of Marthas Vineyard and Nantucket- 102 AM EDT Tue May 2 2023 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH WEDNESDAY MORNING... .REST OF TONIGHT...S winds 10 to 15 kt with gusts up to 20 kt. Seas 6 to 8 ft. .TUE...S winds 15 to 20 kt, becoming SW 10 to 15 kt in the afternoon. Seas 5 to 8 ft. A chance of showers. .TUE NIGHT...SW winds 10 to 15 kt. Gusts up to 20 kt in the evening. Seas 5 to 7 ft. .WED...S winds 5 to 10 kt. Seas 4 to 6 ft. .WED NIGHT...SE winds around 5 kt, becoming NE after midnight. Seas 3 to 5 ft. A chance of showers. .THU...NE winds 15 to 20 kt with gusts up to 25 kt. Seas 4 to 6 ft. Showers likely. .THU NIGHT...N winds 15 to 20 kt with gusts up to 25 kt. Seas 4 to 6 ft. A chance of showers. .FRI AND FRI NIGHT...N winds 10 to 15 kt with gusts up to 25 kt. Seas 4 to 6 ft. .SAT AND SAT NIGHT...NW winds 10 to 15 kt. Gusts up to 20 kt. Seas 2 to 4 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ256-021800- Coastal Waters from Montauk NY to Marthas Vineyard extending out to 20 nm South of Block Island- 102 AM EDT Tue May 2 2023 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH WEDNESDAY MORNING... .REST OF TONIGHT...S winds around 15 kt with gusts up to 25 kt. Seas 7 to 8 ft. A slight chance of showers with isolated tstms. .TUE...S winds 10 to 15 kt with gusts up to 20 kt. Seas 6 to 7 ft. A chance of showers. .TUE NIGHT...SW winds 10 to 15 kt. Gusts up to 20 kt in the evening. Seas 5 to 7 ft. .WED...SW winds 5 to 10 kt. Seas 4 to 6 ft. .WED NIGHT...SW winds around 5 kt, becoming N after midnight. Seas 3 to 4 ft. A chance of showers. .THU...NE winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to 5 ft. Showers likely. .THU NIGHT...N winds 15 to 20 kt, diminishing to 10 to 15 kt after midnight. Gusts up to 25 kt. Seas 3 to 5 ft. A chance of showers. .FRI THROUGH SAT...NW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. .SAT NIGHT...W winds 10 to 15 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. $$ ANZ232-021800- Nantucket Sound- 102 AM EDT Tue May 2 2023 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 2 AM EDT EARLY THIS MORNING... .REST OF TONIGHT...S winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 5 ft. .TUE...S winds 15 to 20 kt. Seas 3 to 5 ft. A chance of showers. .TUE NIGHT...SW winds 10 to 15 kt. Gusts up to 20 kt in the evening. Seas 2 to 4 ft. .WED...S winds 5 to 10 kt. Seas 2 to 3 ft. A chance of showers. .WED NIGHT...SE winds 5 to 10 kt, becoming E after midnight. Seas 2 to 3 ft. A chance of showers. .THU...NE winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 4 ft. Showers likely. .THU NIGHT...N winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 4 ft. A chance of showers. .FRI AND FRI NIGHT...N winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 4 ft. .SAT AND SAT NIGHT...N winds around 10 kt, becoming W. Seas around 2 ft, then 1 foot or less. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ233-021800- Vineyard Sound- 102 AM EDT Tue May 2 2023 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 2 AM EDT EARLY THIS MORNING... .REST OF TONIGHT...S winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 5 ft. .TUE...S winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 4 ft. A chance of showers. .TUE NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt, diminishing to 5 to 10 kt after midnight. Seas 3 to 4 ft. .WED...SW winds 5 to 10 kt. Seas 2 to 4 ft. A chance of showers. .WED NIGHT...SW winds 5 to 10 kt, becoming N after midnight. Seas 2 to 3 ft. A chance of showers. .THU...NE winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 4 ft. Showers likely. .THU NIGHT...N winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 3 ft. A chance of showers. .FRI THROUGH SAT NIGHT...W winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft. 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. $$ ANZ234-021800- Buzzards Bay- 102 AM EDT Tue May 2 2023 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 2 AM EDT EARLY THIS MORNING... .REST OF TONIGHT...S winds around 10 kt with gusts up to 20 kt. Seas 3 to 4 ft. .TUE...S winds 10 to 15 kt with gusts up to 25 kt. Seas 3 to 4 ft. A chance of showers. .TUE NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt, diminishing to 5 to 10 kt after midnight. Seas 2 to 4 ft. .WED...S winds 5 to 10 kt. Seas 2 to 3 ft. A chance of showers. .WED NIGHT...S winds 5 to 10 kt, becoming NE after midnight. Seas around 2 ft. Showers likely. .THU...NE winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 4 ft. Showers likely. .THU NIGHT...N winds 15 to 20 kt, diminishing to 10 to 15 kt after midnight. Gusts up to 25 kt. Seas 2 to 3 ft. A chance of showers. .FRI THROUGH SAT NIGHT...W winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ235-021800- Rhode Island Sound- 102 AM EDT Tue May 2 2023 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT... .REST OF TONIGHT...S winds 10 to 15 kt with gusts up to 25 kt. Seas 5 to 6 ft. A slight chance of showers with isolated tstms. .TUE...S winds 10 to 15 kt with gusts up to 25 kt. Seas 4 to 6 ft. A chance of showers. .TUE NIGHT...SW winds 10 to 15 kt. Gusts up to 20 kt in the evening. Seas 4 to 5 ft. .WED...SW winds 10 to 15 kt. Seas 3 to 5 ft. A chance of showers. .WED NIGHT AND THU...N winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 4 ft. Showers likely. .THU NIGHT...N winds 15 to 20 kt, diminishing to 10 to 15 kt after midnight. Gusts up to 25 kt. Seas 2 to 4 ft. A chance of showers. .FRI THROUGH SAT NIGHT...W 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. $$ ANZ237-021800- Block Island Sound- 102 AM EDT Tue May 2 2023 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT... .REST OF TONIGHT...S winds 10 to 15 kt with gusts up to 20 kt. Seas 4 to 6 ft. A slight chance of showers with isolated tstms. .TUE...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 4 to 6 ft. A chance of showers. .TUE NIGHT...SW winds 10 to 15 kt. Gusts up to 20 kt in the evening. Seas 3 to 5 ft. .WED...SW winds 5 to 10 kt. Seas 3 to 4 ft. A chance of showers. .WED NIGHT...SW winds 5 to 10 kt, becoming N after midnight. Seas 2 to 3 ft. A chance of showers. .THU...NE winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 3 ft. Showers likely. .THU NIGHT...N winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. A chance of showers. .FRI THROUGH SAT NIGHT...W winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft. Winds and seas higher in and near tstms. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ230-021800- Boston Harbor- 102 AM EDT Tue May 2 2023 .REST OF TONIGHT...S winds 5 to 10 kt. Waves 1 foot or less. .TUE...S winds 10 to 15 kt. Gusts up to 20 kt in the afternoon. Waves around 2 ft. Showers likely. .TUE NIGHT...S winds 10 to 15 kt, diminishing to 5 to 10 kt after midnight. Waves around 2 ft in the evening, then 1 foot or less. A chance of showers. .WED...SE winds 5 to 10 kt, increasing to 10 to 15 kt in the afternoon. Waves 1 foot or less, then around 2 ft in the afternoon. Showers likely. .WED NIGHT...E winds 10 to 15 kt, becoming NE 15 to 20 kt after midnight. Gusts up to 25 kt. Waves 2 to 3 ft. Showers likely. .THU...NE winds 20 to 25 kt, becoming N 15 to 20 kt in the afternoon. Waves 2 to 3 ft. Showers likely. .THU NIGHT...N winds 15 to 20 kt, diminishing to around 10 kt after midnight. Waves around 2 ft. A chance of showers. .FRI THROUGH SAT NIGHT...W winds 10 to 15 kt with gusts up to 20 kt. 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. $$ ANZ236-021800- Narragansett Bay- 102 AM EDT Tue May 2 2023 .REST OF TONIGHT...S winds around 10 kt with gusts up to 20 kt. Waves 2 to 4 ft. A slight chance of showers with isolated tstms. .TUE...S winds 10 to 15 kt with gusts up to 25 kt. Waves 2 to 4 ft. A chance of showers. .TUE NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt, diminishing to 5 to 10 kt after midnight. Waves 2 to 4 ft. .WED...SW winds 5 to 10 kt, becoming S 10 to 15 kt in the afternoon. Waves 2 to 4 ft. A chance of showers. .WED NIGHT AND THU...N winds 10 to 15 kt with gusts up to 25 kt. Waves 2 to 3 ft. Showers likely. .THU NIGHT...N winds 10 to 15 kt. Gusts up to 20 kt in the evening. Waves 2 to 3 ft. A chance of showers. .FRI THROUGH SAT NIGHT...W winds 5 to 10 kt with gusts up to 20 kt. Winds and waves higher in and near tstms. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ 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