Coastal Waters Forecast
Issued by NWS Boston, MA

Current Version |  Previous Version |  Text Only |  Print | Product List |  Glossary On
Versions: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50
427 FZUS51 KBOX 190505 CWFBOX Coastal Waters Forecast for Massachusetts and Rhode Island National Weather Service Boston/Norton MA 104 AM EDT Thu Sep 19 2024 Coastal waters from the Merrimack River MA to Watch Hill RI out to 25 NM ANZ200-191800- 104 AM EDT Thu Sep 19 2024 .Synopsis for Massachusetts and Rhode Island coastal waters... Dense fog over the south coastal waters through mid-morning. Otherwise expect calm/tranquil boating conditions for the first half of the day. Seas then gradually rise over the south coastal waters as low-pressure moves up The Mid-Atlantic coast into this evening. Seas remain elevated through Thursday evening. SCY in effect. $$ ANZ250-191800- Coastal waters east of Ipswich Bay and the Stellwagen Bank National Marine Sanctuary- 104 AM EDT Thu Sep 19 2024 ...SMALL CRAFT ADVISORY IN EFFECT FROM 8 AM EDT THIS MORNING THROUGH FRIDAY MORNING... .REST OF TONIGHT...E winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: SE 3 ft at 8 seconds and SE 2 ft at 11 seconds. Patchy fog. A chance of showers. Vsby 1 NM or less. .THU...NE winds 10 to 15 kt, increasing to 15 to 20 kt in the afternoon. Gusts up to 25 kt. Seas 2 to 4 ft, building to 4 to 6 ft in the afternoon. Wave Detail: SE 4 ft at 11 seconds and SE 3 ft at 8 seconds, becoming E 5 ft at 10 seconds and NE 2 ft at 4 seconds. A chance of showers. Patchy fog in the morning. Vsby 1 NM or less, increasing to 1 to 3 NM in the afternoon. .THU NIGHT...NE winds 15 to 20 kt with gusts up to 30 kt. Seas 5 to 7 ft. Wave Detail: E 6 ft at 9 seconds and NE 2 ft at 5 seconds. A chance of showers. Vsby 1 to 3 NM in the evening. .FRI...NE winds 20 to 25 kt with gusts up to 30 kt. Seas 6 to 9 ft. Wave Detail: E 8 ft at 9 seconds and NE 3 ft at 5 seconds. Showers likely. .FRI NIGHT THROUGH SAT NIGHT...NE winds 15 to 20 kt with gusts up to 30 kt. Seas 8 to 10 ft. Wave Detail: E 9 ft at 9 seconds and NE 3 ft at 5 seconds. A chance of showers. .SUN THROUGH MON...NE winds 15 to 20 kt with gusts up to 25 kt. Seas 7 to 10 ft. Wave Detail: E 8 ft at 10 seconds and SE 2 ft at 12 seconds. .MON NIGHT...NE winds 10 to 15 kt with gusts up to 20 kt. Seas 6 to 8 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ251-191800- Massachusetts Bay and Ipswich Bay- 104 AM EDT Thu Sep 19 2024 ...SMALL CRAFT ADVISORY IN EFFECT FROM 1 PM EDT THIS AFTERNOON THROUGH FRIDAY MORNING... .REST OF TONIGHT...NE winds 5 to 10 kt. Seas around 2 ft. Wave Detail: SE 2 ft at 8 seconds and E 2 ft at 11 seconds. Patchy fog. A chance of showers. Vsby 1 NM or less. .THU...NE winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 4 ft. Wave Detail: E 4 ft at 10 seconds and NE 3 ft at 4 seconds. A chance of showers. Patchy fog in the morning. Vsby 1 NM or less, increasing to 1 to 3 NM in the afternoon. .THU NIGHT...NE winds 15 to 20 kt with gusts up to 25 kt. Seas 4 to 6 ft. Wave Detail: E 5 ft at 9 seconds and NE 3 ft at 4 seconds. A chance of showers. Vsby 1 to 3 NM in the evening. .FRI...NE winds 20 to 25 kt with gusts up to 30 kt. Seas 5 to 8 ft. Wave Detail: E 7 ft at 9 seconds and NE 3 ft at 5 seconds. A chance of showers. .FRI NIGHT THROUGH SAT NIGHT...NE winds 15 to 20 kt with gusts up to 25 kt. Seas 7 to 9 ft. Wave Detail: E 8 ft at 9 seconds and NE 3 ft at 5 seconds. A chance of showers. .SUN THROUGH MON...NE winds 15 to 20 kt with gusts up to 25 kt. Seas 6 to 9 ft. Wave Detail: E 8 ft at 9 seconds and NE 2 ft at 4 seconds. .MON NIGHT...NE winds 10 to 15 kt. Seas 5 to 8 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. $$ ANZ231-191800- Cape Cod Bay- 104 AM EDT Thu Sep 19 2024 ...SMALL CRAFT ADVISORY IN EFFECT FROM 1 PM EDT THIS AFTERNOON THROUGH FRIDAY MORNING... .REST OF TONIGHT...NE winds around 10 kt. Seas around 2 ft. Wave Detail: SE 2 ft at 8 seconds and E 1 foot at 2 seconds. Patchy fog. A chance of showers. Vsby 1 NM or less. .THU...NE winds 10 to 15 kt, increasing to 15 to 20 kt in the afternoon. Gusts up to 30 kt. Seas 2 to 4 ft. Wave Detail: SE 4 ft at 8 seconds and NE 3 ft at 3 seconds. Showers likely. Patchy fog in the morning. Vsby 1 NM or less. .THU NIGHT...NE winds 15 to 20 kt, increasing to 20 to 25 kt after midnight. Gusts up to 30 kt. Seas 4 to 5 ft. Wave Detail: E 5 ft at 9 seconds and NE 3 ft at 4 seconds. Showers likely. Vsby 1 to 3 NM. .FRI...NE winds 20 to 25 kt, diminishing to 15 to 20 kt in the afternoon. Gusts up to 30 kt. Seas 5 to 7 ft. Wave Detail: E 6 ft at 8 seconds and N 4 ft at 4 seconds. Showers likely. .FRI NIGHT...NE winds 15 to 20 kt with gusts up to 30 kt. Seas 5 to 7 ft. Wave Detail: E 6 ft at 9 seconds and N 4 ft at 4 seconds. Showers likely, mainly in the evening. .SAT AND SAT NIGHT...NE winds 15 to 20 kt with gusts up to 30 kt. Seas 5 to 7 ft. Wave Detail: NE 6 ft at 9 seconds and N 4 ft at 5 seconds. A chance of showers. .SUN...NE winds 15 to 20 kt with gusts up to 30 kt. Seas 6 to 7 ft. A chance of showers. .SUN NIGHT AND MON...NE winds 15 to 20 kt with gusts up to 30 kt. Seas 5 to 7 ft. .MON NIGHT...NE winds 10 to 15 kt with gusts up to 20 kt. Seas 4 to 6 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ254-191800- Coastal waters from Provincetown MA to Chatham MA to Nantucket MA out 20 nm- 104 AM EDT Thu Sep 19 2024 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH FRIDAY MORNING... .REST OF TONIGHT...E winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 4 ft. Wave Detail: SE 4 ft at 8 seconds and SE 2 ft at 11 seconds. Patchy fog. Showers likely with isolated tstms. Vsby 1 NM or less. .THU...NE winds 15 to 20 kt with gusts up to 25 kt. Seas 5 to 7 ft. Wave Detail: E 7 ft at 8 seconds and SE 4 ft at 11 seconds. Showers. Patchy fog in the morning. Vsby 1 NM or less. .THU NIGHT...NE winds 15 to 20 kt, increasing to 20 to 25 kt after midnight. Gusts up to 30 kt. Seas 6 to 8 ft. Wave Detail: NE 8 ft at 7 seconds and E 7 ft at 8 seconds. Showers likely. Vsby 1 to 3 NM. .FRI...NE winds 20 to 25 kt with gusts up to 30 kt. Seas 7 to 10 ft. Wave Detail: E 8 ft at 8 seconds and SE 3 ft at 8 seconds. Showers likely. .FRI NIGHT...NE winds 15 to 20 kt with gusts up to 25 kt. Seas 7 to 10 ft. Wave Detail: E 10 ft at 9 seconds and NE 2 ft at 4 seconds. Showers likely, mainly in the evening. .SAT AND SAT NIGHT...NE winds 20 to 25 kt with gusts up to 30 kt. Seas 7 to 10 ft. Wave Detail: E 9 ft at 9 seconds and NE 1 foot at 4 seconds. A chance of showers. .SUN...NE winds 20 to 25 kt with gusts up to 30 kt. Seas 8 to 11 ft. A chance of showers. .SUN NIGHT AND MON...NE winds 15 to 20 kt with gusts up to 25 kt. Seas 8 to 11 ft. .MON NIGHT...NE winds 15 to 20 kt. Seas 7 to 10 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. $$ ANZ255-191800- Coastal Waters extending out to 25 nm South of Marthas Vineyard and Nantucket- 104 AM EDT Thu Sep 19 2024 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH FRIDAY MORNING... .REST OF TONIGHT...NE winds around 15 kt with gusts up to 20 kt. Seas 3 to 5 ft. Wave Detail: SE 4 ft at 8 seconds and NE 1 foot at 3 seconds. Patchy fog. Showers with isolated tstms. Vsby 1 NM or less. .THU...NE winds 15 to 20 kt, increasing to 20 to 25 kt in the afternoon. Seas 4 to 6 ft. Wave Detail: E 6 ft at 8 seconds and NE 5 ft at 5 seconds. Showers. Patchy fog in the morning. Vsby 1 NM or less. .THU NIGHT...NE winds 20 to 25 kt with gusts up to 30 kt. Seas 5 to 7 ft. Wave Detail: SE 6 ft at 8 seconds and NE 5 ft at 7 seconds. Showers. Vsby 1 to 3 NM. .FRI...NE winds 20 to 25 kt with gusts up to 30 kt. Seas 5 to 8 ft. Wave Detail: NE 6 ft at 7 seconds and SE 3 ft at 9 seconds. Showers likely. .FRI NIGHT...NE winds 20 to 25 kt. Seas 5 to 8 ft. Wave Detail: E 7 ft at 9 seconds and NE 3 ft at 5 seconds. Showers likely, mainly in the evening. .SAT...NE winds 20 to 25 kt. Seas 5 to 7 ft. Wave Detail: E 7 ft at 9 seconds and NE 4 ft at 5 seconds. A chance of showers. .SAT NIGHT...NE winds 20 to 25 kt with gusts up to 30 kt. Seas 6 to 9 ft. A chance of showers. .SUN...NE winds 20 to 25 kt with gusts up to 30 kt. Seas 7 to 10 ft. A chance of showers. .SUN NIGHT AND MON...NE winds 20 to 25 kt. Seas 7 to 10 ft. .MON NIGHT...NE winds 15 to 20 kt. Seas 6 to 9 ft. Winds and seas higher in and near tstms. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ256-191800- Coastal Waters from Montauk NY to Marthas Vineyard extending out to 20 nm South of Block Island- 104 AM EDT Thu Sep 19 2024 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH FRIDAY MORNING... .REST OF TONIGHT...NE winds 15 to 20 kt with gusts up to 25 kt. Seas 4 to 5 ft. Wave Detail: SE 5 ft at 8 seconds and NE 1 foot at 3 seconds. Patchy fog. Showers likely with isolated tstms. Vsby 1 NM or less. .THU...NE winds 20 to 25 kt with gusts up to 30 kt. Seas 5 to 7 ft. Wave Detail: NE 5 ft at 5 seconds and E 5 ft at 8 seconds. Showers. Patchy fog in the morning. Vsby 1 NM or less, increasing to 1 to 3 NM in the afternoon. .THU NIGHT...NE winds around 25 kt with gusts up to 30 kt. Seas 6 to 8 ft. Wave Detail: NE 5 ft at 5 seconds and E 5 ft at 8 seconds. Showers likely. Vsby 1 to 3 NM. .FRI...NE winds 25 to 30 kt, diminishing to 20 to 25 kt in the afternoon. Seas 5 to 8 ft. Wave Detail: NE 5 ft at 5 seconds and E 5 ft at 8 seconds. Showers likely. .FRI NIGHT...NE winds 20 to 25 kt. Seas 6 to 8 ft. Wave Detail: NE 6 ft at 6 seconds and E 5 ft at 9 seconds. Showers likely, mainly in the evening. .SAT AND SAT NIGHT...NE winds 20 to 25 kt with gusts up to 30 kt. Seas 6 to 8 ft. Wave Detail: E 7 ft at 9 seconds and NE 5 ft at 5 seconds. A chance of showers. .SUN...NE winds 20 to 25 kt with gusts up to 30 kt. Seas 6 to 9 ft. A chance of showers. .SUN NIGHT AND MON...NE winds 20 to 25 kt with gusts up to 30 kt. Seas 6 to 9 ft. .MON NIGHT...NE winds 15 to 20 kt with gusts up to 25 kt. Seas 5 to 8 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. $$ ANZ232-191800- Nantucket Sound- 104 AM EDT Thu Sep 19 2024 ...SMALL CRAFT ADVISORY IN EFFECT FROM 5 AM EDT EARLY THIS MORNING THROUGH FRIDAY MORNING... .REST OF TONIGHT...NE winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Wave Detail: E 2 ft at 3 seconds and SE 2 ft at 8 seconds. Patchy fog. Showers likely with isolated tstms. Vsby 1 NM or less. .THU...NE winds 15 to 20 kt, increasing to 20 to 25 kt in the afternoon. Seas 3 to 5 ft. Wave Detail: E 4 ft at 6 seconds and E 1 foot at 10 seconds. Showers. Patchy fog in the morning. Vsby 1 NM or less, increasing to 1 to 3 NM in the afternoon. .THU NIGHT...NE winds 20 to 25 kt with gusts up to 30 kt. Seas 4 to 5 ft. Wave Detail: E 5 ft at 7 seconds. Showers. Vsby 1 to 3 NM. .FRI...NE winds 20 to 25 kt with gusts up to 30 kt. Seas 4 to 6 ft. Wave Detail: E 5 ft at 8 seconds and NE 4 ft at 5 seconds. Showers likely. .FRI NIGHT...NE winds 20 to 25 kt. Seas 4 to 6 ft. Wave Detail: E 5 ft at 9 seconds and NE 4 ft at 4 seconds. Showers likely, mainly in the evening. .SAT...NE winds 20 to 25 kt. Seas 4 to 6 ft. Wave Detail: E 5 ft at 10 seconds and NE 4 ft at 4 seconds. A chance of showers. .SAT NIGHT...NE winds 20 to 25 kt with gusts up to 30 kt. Seas 4 to 6 ft. A chance of showers. .SUN...NE winds 20 to 25 kt with gusts up to 30 kt. Seas 5 to 7 ft. A chance of showers. .SUN NIGHT...NE winds 20 to 25 kt. Seas 5 to 7 ft. .MON AND MON NIGHT...NE winds 20 to 25 kt, diminishing to 15 to 20 kt. Seas 4 to 6 ft. Winds and seas higher in and near tstms. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ233-191800- Vineyard Sound- 104 AM EDT Thu Sep 19 2024 ...SMALL CRAFT ADVISORY IN EFFECT FROM 5 AM EDT EARLY THIS MORNING THROUGH FRIDAY MORNING... .REST OF TONIGHT...NE winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Wave Detail: SE 2 ft at 8 seconds and NE 1 foot at 3 seconds. Patchy fog. Showers likely with isolated tstms. Vsby 1 NM or less. .THU...NE winds 15 to 20 kt, increasing to 20 to 25 kt in the afternoon. Gusts up to 30 kt. Seas 2 to 4 ft. Wave Detail: SE 3 ft at 9 seconds and NE 2 ft at 3 seconds. Showers. Patchy fog in the morning. Vsby 1 NM or less, increasing to 1 to 3 NM in the afternoon. .THU NIGHT...NE winds 20 to 25 kt with gusts up to 30 kt. Seas around 4 ft. Wave Detail: NE 3 ft at 4 seconds and SE 3 ft at 8 seconds. Showers likely. Vsby 1 to 3 NM in the evening. .FRI...NE winds 20 to 25 kt with gusts up to 30 kt. Seas 4 to 5 ft. Wave Detail: E 4 ft at 8 seconds and NE 3 ft at 4 seconds. Showers likely. .FRI NIGHT...NE winds around 20 kt with gusts up to 30 kt. Seas 4 to 5 ft. Wave Detail: NE 3 ft at 4 seconds and E 3 ft at 9 seconds. Showers likely, mainly in the evening. .SAT AND SAT NIGHT...NE winds 20 to 25 kt with gusts up to 30 kt. Seas around 4 ft. Wave Detail: NE 3 ft at 4 seconds and E 3 ft at 9 seconds. A chance of showers. .SUN...NE winds 20 to 25 kt with gusts up to 30 kt. Seas 4 to 5 ft. A chance of showers. .SUN NIGHT AND MON...NE winds 20 to 25 kt, diminishing to 15 to 20 kt. Gusts up to 30 kt. Seas 3 to 5 ft. .MON NIGHT...NE winds 15 to 20 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. $$ ANZ234-191800- Buzzards Bay- 104 AM EDT Thu Sep 19 2024 ...SMALL CRAFT ADVISORY IN EFFECT FROM 5 AM EDT EARLY THIS MORNING THROUGH FRIDAY MORNING... .REST OF TONIGHT...NE winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft. Wave Detail: SE 2 ft at 7 seconds and NE 1 foot at 2 seconds. Patchy fog. Showers likely with isolated tstms. Vsby 1 NM or less. .THU...NE winds 15 to 20 kt, increasing to 20 to 25 kt in the afternoon. Gusts up to 30 kt. Seas 2 to 4 ft. Wave Detail: SE 3 ft at 8 seconds and NE 2 ft at 3 seconds. Showers. Patchy fog in the morning. Vsby 1 NM or less, increasing to 1 to 3 NM in the afternoon. .THU NIGHT...NE winds 20 to 25 kt with gusts up to 30 kt. Seas 3 to 4 ft. Wave Detail: E 4 ft at 9 seconds and NE 2 ft at 4 seconds. Showers likely. Vsby 1 to 3 NM in the evening. .FRI...NE winds 20 to 25 kt with gusts up to 30 kt. Seas 3 to 5 ft. Wave Detail: E 5 ft at 8 seconds and NE 3 ft at 4 seconds. Showers likely. .FRI NIGHT...NE winds around 20 kt with gusts up to 30 kt. Seas 4 to 5 ft. Wave Detail: NE 3 ft at 4 seconds and E 3 ft at 9 seconds. Showers likely, mainly in the evening. .SAT AND SAT NIGHT...NE winds 20 to 25 kt with gusts up to 30 kt. Seas 4 to 5 ft. Wave Detail: NE 3 ft at 4 seconds and E 3 ft at 9 seconds. A chance of showers. .SUN...NE winds 20 to 25 kt with gusts up to 30 kt. Seas 4 to 6 ft. A chance of showers. .SUN NIGHT AND MON...NE winds 15 to 20 kt with gusts up to 30 kt. Seas 4 to 6 ft. .MON NIGHT...NE winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to 5 ft. Winds and seas higher in and near tstms. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ235-191800- Rhode Island Sound- 104 AM EDT Thu Sep 19 2024 ...SMALL CRAFT ADVISORY IN EFFECT FROM 5 AM EDT EARLY THIS MORNING THROUGH FRIDAY MORNING... .REST OF TONIGHT...NE winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 4 ft. Wave Detail: SE 4 ft at 8 seconds and NE 2 ft at 3 seconds. Patchy fog. Showers likely with isolated tstms. Vsby 1 NM or less. .THU...NE winds 15 to 20 kt, increasing to 20 to 25 kt in the afternoon. Gusts up to 30 kt. Seas 4 to 6 ft. Wave Detail: NE 4 ft at 4 seconds and SE 4 ft at 7 seconds. Showers. Patchy fog in the morning. Vsby 1 NM or less, increasing to 1 to 3 NM in the afternoon. .THU NIGHT...NE winds 20 to 25 kt with gusts up to 30 kt. Seas 4 to 6 ft. Wave Detail: NE 4 ft at 4 seconds and SE 4 ft at 8 seconds. Showers likely. Vsby 1 to 3 NM in the evening. .FRI...NE winds 20 to 25 kt with gusts up to 30 kt. Seas 4 to 6 ft. Wave Detail: NE 4 ft at 4 seconds and E 4 ft at 8 seconds. Showers likely. .FRI NIGHT...NE winds 20 to 25 kt. Seas 5 to 6 ft. Wave Detail: NE 4 ft at 5 seconds and SE 3 ft at 9 seconds. Showers likely, mainly in the evening. .SAT AND SAT NIGHT...NE winds 20 to 25 kt with gusts up to 30 kt. Seas around 5 ft. Wave Detail: N 4 ft at 4 seconds and SE 3 ft at 9 seconds. A chance of showers. .SUN...NE winds 20 to 25 kt with gusts up to 30 kt. Seas 5 to 6 ft. A chance of showers. .SUN NIGHT THROUGH MON NIGHT...NE winds 20 to 25 kt with gusts up to 30 kt. Seas 4 to 6 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. $$ ANZ237-191800- Block Island Sound- 104 AM EDT Thu Sep 19 2024 ...SMALL CRAFT ADVISORY IN EFFECT FROM 5 AM EDT EARLY THIS MORNING THROUGH FRIDAY MORNING... .REST OF TONIGHT...NE winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 4 ft. Wave Detail: SE 4 ft at 8 seconds and NE 1 foot at 3 seconds. Patchy fog. Showers likely with isolated tstms. Vsby 1 NM or less. .THU...NE winds 15 to 20 kt with gusts up to 30 kt. Seas 4 to 6 ft. Wave Detail: SE 4 ft at 8 seconds and NE 3 ft at 4 seconds. Showers likely. Patchy fog in the morning with vsby 1 to 3 NM. .THU NIGHT...NE winds 15 to 20 kt with gusts up to 30 kt. Seas 4 to 6 ft. Wave Detail: SE 5 ft at 9 seconds and NE 3 ft at 5 seconds. Showers likely. .FRI...NE winds 20 to 25 kt, diminishing to 15 to 20 kt in the afternoon. Gusts up to 30 kt. Seas 4 to 6 ft. Wave Detail: E 4 ft at 8 seconds and NE 3 ft at 5 seconds. Showers likely. .FRI NIGHT THROUGH SAT NIGHT...NE winds 15 to 20 kt with gusts up to 25 kt. Seas 4 to 6 ft. Wave Detail: NE 4 ft at 5 seconds and SE 4 ft at 10 seconds. A chance of showers. .SUN...NE winds around 20 kt with gusts up to 30 kt. Seas 4 to 6 ft. Wave Detail: E 4 ft at 6 seconds and E 3 ft at 10 seconds. A chance of showers. .SUN NIGHT THROUGH MON NIGHT...NE winds 15 to 20 kt with gusts up to 25 kt. Seas 4 to 6 ft. Winds and seas higher in and near tstms. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ230-191800- Boston Harbor- 104 AM EDT Thu Sep 19 2024 .REST OF TONIGHT...NE winds 5 to 10 kt. Waves 1 foot or less. Patchy fog. A chance of showers. Vsby 1 NM or less. .THU...NE winds 10 to 15 kt with gusts up to 20 kt. Waves 2 to 3 ft. A chance of showers. Patchy fog in the morning with vsby 1 NM or less. .THU NIGHT...NE winds 15 to 20 kt. Waves 2 to 3 ft. A chance of showers. Vsby 1 to 3 NM in the evening. .FRI...NE winds 15 to 20 kt with gusts up to 25 kt. Waves 2 to 3 ft, except 4 to 6 ft at the outer harbor entrance. A chance of showers. .FRI NIGHT THROUGH SAT NIGHT...NE winds 15 to 20 kt with gusts up to 25 kt. Waves 2 to 3 ft, except 5 to 7 ft at the outer harbor entrance. A chance of showers. .SUN THROUGH MON NIGHT...NE winds 15 to 20 kt with gusts up to 25 kt. Waves 2 to 3 ft, except 4 to 6 ft at the outer harbor entrance. 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. $$ ANZ236-191800- Narragansett Bay- 104 AM EDT Thu Sep 19 2024 .REST OF TONIGHT...NE winds 5 to 10 kt. Waves 2 to 3 ft. Patchy fog. A chance of showers. Vsby 1 NM or less. .THU...NE winds 15 to 20 kt with gusts up to 25 kt. Waves 2 to 3 ft. Showers likely. Patchy fog in the morning with vsby 1 to 3 NM. .THU NIGHT...NE winds 15 to 20 kt with gusts up to 25 kt. Waves 2 to 3 ft. Showers likely. .FRI...NE winds 15 to 20 kt with gusts up to 25 kt. Waves 2 to 3 ft. Showers likely. .FRI NIGHT...NE winds 10 to 15 kt with gusts up to 25 kt. Waves 2 to 3 ft, except 4 to 6 ft at the bay entrance. Showers likely, mainly in the evening. .SAT AND SAT NIGHT...NE winds 15 to 20 kt with gusts up to 25 kt. Waves 2 to 3 ft. A chance of showers. .SUN...NE winds 15 to 20 kt with gusts up to 25 kt. Waves 2 to 3 ft, except 4 to 6 ft at the bay entrance. A chance of showers. .SUN NIGHT THROUGH MON NIGHT...NE winds 15 to 20 kt with gusts up to 25 kt. Waves 2 to 3 ft, except 4 to 6 ft at the bay entrance. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ 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