![National Oceanic and Atmospheric Administration](/build/images/header/noaa.d87e0251.png)
![National Weather Service](/build/images/header/nws.4e6585d8.png)
![United States Department of Commerce](/build/images/header/doc.b38ba91a.png)
Coastal Waters Forecast
Issued by NWS Boston, MA
Issued by NWS Boston, MA
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
555 FZUS51 KBOX 081704 CWFBOX Coastal Waters Forecast for Massachusetts and Rhode Island National Weather Service Boston/Norton MA 103 PM EDT Mon Jul 8 2024 Coastal waters from the Merrimack River MA to Watch Hill RI out to 25 NM ANZ200-090600- 103 PM EDT Mon Jul 8 2024 .Synopsis for Massachusetts and Rhode Island coastal waters... Weak cold front stalls across the waters through mid week keeping areas of low stratus and fog around with southwest flow. Unsettled mid to late week with renewed rain and thunderstorm chances. $$ ANZ250-090600- Coastal waters east of Ipswich Bay and the Stellwagen Bank National Marine Sanctuary- 104 PM EDT Mon Jul 8 2024 .THIS AFTERNOON...SE winds 5 to 10 kt. Seas around 2 ft. Wave Detail: SE 2 ft at 7 seconds. Areas of fog. Vsby 1 NM or less. .TONIGHT...S winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: S 2 ft at 4 seconds and SE 2 ft at 8 seconds. Patchy fog. Vsby 1 NM or less. .TUE...SW winds 5 to 10 kt, becoming S 10 to 15 kt with gusts up to 20 kt in the afternoon. Seas 2 to 3 ft. Wave Detail: SE 3 ft at 8 seconds and S 2 ft at 4 seconds. Patchy fog. Vsby 1 NM or less, increasing to 1 to 3 NM in the afternoon. .TUE NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Wave Detail: S 2 ft at 5 seconds. Patchy fog. Vsby 1 to 3 NM, decreasing to 1 NM or less after midnight. .WED...SW winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: SW 2 ft at 3 seconds and SE 2 ft at 7 seconds. Patchy fog in the morning. A chance of showers in the afternoon. Vsby 1 NM or less in the morning. .WED NIGHT...S winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft. Wave Detail: S 2 ft at 4 seconds and SE 2 ft at 7 seconds. A chance of showers. .THU THROUGH FRI NIGHT...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 4 ft. A chance of showers. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ251-090600- Massachusetts Bay and Ipswich Bay- 104 PM EDT Mon Jul 8 2024 .THIS AFTERNOON...SE winds 5 to 10 kt. Seas around 2 ft. Wave Detail: SE 2 ft at 7 seconds and SE 1 foot at 2 seconds. Patchy fog. Vsby 1 NM or less. .TONIGHT...S winds 5 to 10 kt. Seas around 2 ft. Wave Detail: SE 2 ft at 7 seconds and SE 1 foot at 3 seconds. Patchy fog. Vsby 1 NM or less, increasing to 1 to 3 NM after midnight. .TUE...SW winds 5 to 10 kt, becoming S 10 to 15 kt with gusts up to 20 kt in the afternoon. Seas around 2 ft. Wave Detail: S 2 ft at 3 seconds and SE 2 ft at 6 seconds. Patchy fog in the morning with vsby 1 to 3 NM. .TUE NIGHT...SW 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 SE 2 ft at 6 seconds. A chance of showers in the evening. Patchy fog after midnight with vsby 1 to 3 NM. .WED...SW winds 5 to 10 kt. Seas around 2 ft in the morning, then 1 foot or less. Wave Detail: SW 1 foot at 3 seconds and SE 1 foot at 7 seconds, becoming S 1 foot at 3 seconds and SE 1 foot at 7 seconds. Patchy fog in the morning. A chance of showers in the afternoon. Vsby 1 NM or less in the morning. .WED NIGHT...S winds 10 to 15 kt. Seas 1 foot or less. Wave Detail: S 1 foot at 3 seconds and SE 1 foot at 6 seconds. A chance of showers. .THU THROUGH FRI NIGHT...SW winds 15 to 20 kt with gusts up to 25 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. $$ ANZ231-090600- Cape Cod Bay- 104 PM EDT Mon Jul 8 2024 .THIS AFTERNOON...SE winds around 5 kt. Seas 1 foot or less. Wave Detail: S 1 foot at 2 seconds and SE 1 foot at 7 seconds. Areas of fog. .TONIGHT...SW winds 5 to 10 kt. Seas 1 foot or less. Wave Detail: S 1 foot at 2 seconds and SE 1 foot at 7 seconds. Patchy fog. Vsby 1 NM or less. .TUE...SW winds 5 to 10 kt, increasing to 10 to 15 kt with gusts up to 20 kt in the afternoon. Seas 1 foot or less, then around 2 ft in the afternoon. Wave Detail: SW 1 foot at 2 seconds and S 1 foot at 7 seconds, becoming SE 2 ft at 7 seconds and SW 1 foot at 3 seconds. Patchy fog in the morning with vsby 1 NM or less. .TUE NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft. Wave Detail: SE 2 ft at 7 seconds and SW 1 foot at 3 seconds. Patchy fog. Vsby 1 to 3 NM, decreasing to 1 NM or less after midnight. .WED...SW winds 10 to 15 kt. Gusts up to 20 kt in the afternoon. Seas 1 foot or less. Wave Detail: SW 1 foot at 2 seconds and S 1 foot at 7 seconds. Areas of fog in the morning. A chance of showers in the afternoon. Vsby 1 to 3 NM in the morning. .WED NIGHT...S winds 10 to 15 kt with gusts up to 20 kt. Seas 1 foot or less. Wave Detail: SW 1 foot at 3 seconds and S 1 foot at 7 seconds. A chance of showers. .THU...S winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 4 ft. A chance of showers. .THU NIGHT THROUGH FRI NIGHT...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 4 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ254-090600- Coastal waters from Provincetown MA to Chatham MA to Nantucket MA out 20 nm- 104 PM EDT Mon Jul 8 2024 .THIS AFTERNOON...S winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: S 2 ft at 7 seconds. Areas of fog. Vsby 1 NM or less. .TONIGHT...SW winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: S 3 ft at 7 seconds and SW 1 foot at 2 seconds. Patchy fog. Vsby 1 NM or less. .TUE...SW winds 5 to 10 kt, increasing to 10 to 15 kt with gusts up to 20 kt in the afternoon. Seas 2 to 3 ft. Wave Detail: S 3 ft at 7 seconds and SW 2 ft at 4 seconds. Patchy fog. Vsby 1 NM or less, increasing to 1 to 3 NM in the afternoon. .TUE 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 and SW 1 foot at 4 seconds. Patchy fog. Vsby 1 NM or less. .WED...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 and SW 2 ft at 4 seconds. Areas of fog in the morning with 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: SW 3 ft at 4 seconds and S 3 ft at 7 seconds. A chance of showers after midnight. .THU...S winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 4 ft. A chance of showers. .THU NIGHT THROUGH FRI NIGHT...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to 5 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. $$ ANZ255-090600- Coastal Waters extending out to 25 nm South of Marthas Vineyard and Nantucket- 104 PM EDT Mon Jul 8 2024 .THIS AFTERNOON...S winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: S 2 ft at 7 seconds. Areas of fog. Vsby 1 NM or less. .TONIGHT...SW winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: S 2 ft at 7 seconds. Patchy fog. Vsby 1 NM or less. .TUE...SW winds 5 to 10 kt, increasing to 10 to 15 kt in the afternoon. Seas 2 to 3 ft. Wave Detail: S 3 ft at 7 seconds. Patchy fog. Vsby 1 NM or less, increasing to 1 to 3 NM in the afternoon. .TUE NIGHT...SW winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: S 3 ft at 7 seconds and SW 1 foot at 3 seconds. Patchy fog. Vsby 1 NM or less. .WED...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Wave Detail: S 3 ft at 5 seconds. Areas of fog in the morning with vsby 1 NM or less. .WED NIGHT...S winds 15 to 20 kt. Seas 2 to 3 ft. Wave Detail: S 3 ft at 6 seconds. .THU THROUGH FRI NIGHT...SW winds 20 to 25 kt. Seas 3 to 5 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ256-090600- Coastal Waters from Montauk NY to Marthas Vineyard extending out to 20 nm South of Block Island- 104 PM EDT Mon Jul 8 2024 .THIS AFTERNOON...S winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: SE 2 ft at 7 seconds. Patchy fog. Vsby 1 NM or less. .TONIGHT...SW winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: S 3 ft at 7 seconds. Patchy fog. Vsby 1 NM or less. .TUE...SW winds 5 to 10 kt, increasing to 10 to 15 kt in the afternoon. Seas around 3 ft. Wave Detail: S 3 ft at 7 seconds. Patchy fog. Vsby 1 NM or less, increasing to 1 to 3 NM in the afternoon. .TUE NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas around 3 ft. Wave Detail: S 3 ft at 7 seconds. Patchy fog. Vsby 1 to 3 NM, decreasing to 1 NM or less after midnight. .WED...SW winds 10 to 15 kt with gusts up to 20 kt. Seas around 3 ft. Wave Detail: S 3 ft at 7 seconds. Areas of fog in the morning with vsby 1 NM or less. .WED NIGHT...S winds 15 to 20 kt. Seas 3 to 4 ft. Wave Detail: S 4 ft at 7 seconds and SW 2 ft at 4 seconds. A chance of showers after midnight. .THU...S winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to 5 ft. A chance of showers. .THU NIGHT...S winds around 20 kt with gusts up to 25 kt. Seas 5 to 6 ft. A chance of showers. .FRI...S winds 15 to 20 kt. Seas 5 to 6 ft. .FRI NIGHT...SW winds around 15 kt with gusts up to 20 kt. Seas 4 to 5 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. $$ ANZ232-090600- Nantucket Sound- 104 PM EDT Mon Jul 8 2024 .THIS AFTERNOON...S winds 5 to 10 kt. Seas around 2 ft. Wave Detail: S 1 foot at 2 seconds and SE 1 foot at 7 seconds. Areas of fog. Vsby 1 NM or less. .TONIGHT...SW winds 5 to 10 kt. Seas around 2 ft. Wave Detail: SW 1 foot at 3 seconds and SE 1 foot at 7 seconds. Patchy fog. Vsby 1 NM or less. .TUE...SW winds 5 to 10 kt, increasing to 10 to 15 kt with gusts up to 20 kt in the afternoon. Seas around 2 ft. Wave Detail: SW 2 ft at 3 seconds and SE 2 ft at 7 seconds. Patchy fog. Vsby 1 NM or less in the morning. .TUE NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft. Wave Detail: SW 2 ft at 3 seconds and S 2 ft at 7 seconds. Patchy fog. Vsby 1 NM or less. .WED...SW winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft. Wave Detail: SW 2 ft at 3 seconds and S 2 ft at 7 seconds. Areas of fog in the morning with vsby 1 NM or less. .WED NIGHT...S winds around 15 kt with gusts up to 20 kt. Seas around 2 ft. Wave Detail: SW 2 ft at 4 seconds and S 2 ft at 7 seconds. A chance of showers after midnight. .THU...S winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 3 ft. A chance of showers. .THU NIGHT THROUGH FRI NIGHT...SW winds 20 to 25 kt. Seas 2 to 3 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ233-090600- Vineyard Sound- 104 PM EDT Mon Jul 8 2024 .THIS AFTERNOON...S winds 5 to 10 kt. Seas around 2 ft. Wave Detail: S 2 ft at 7 seconds and S 1 foot at 2 seconds. Patchy fog. Vsby 1 NM or less. .TONIGHT...SW winds 5 to 10 kt. Seas around 2 ft. Wave Detail: S 2 ft at 7 seconds and SW 1 foot at 2 seconds. Patchy fog. Vsby 1 NM or less. .TUE...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 7 seconds and SW 1 foot at 3 seconds. Patchy fog. Vsby 1 NM or less in the morning. .TUE NIGHT...SW winds 10 to 15 kt. Seas around 2 ft. Wave Detail: S 2 ft at 7 seconds and SW 1 foot at 3 seconds. Patchy fog. Vsby 1 to 3 NM, decreasing to 1 NM or less after midnight. .WED...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 S 2 ft at 7 seconds. Areas of fog in the morning with vsby 1 NM or less. .WED NIGHT...S winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft. Wave Detail: S 2 ft at 5 seconds. A chance of showers after midnight. .THU...S winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 4 ft. A chance of showers. .THU NIGHT AND FRI...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to 4 ft. .FRI 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. $$ ANZ234-090600- Buzzards Bay- 104 PM EDT Mon Jul 8 2024 .THIS AFTERNOON...S winds 5 to 10 kt. Seas around 2 ft. Wave Detail: SW 1 foot at 2 seconds and S 1 foot at 7 seconds. Patchy fog. Vsby 1 to 3 NM. .TONIGHT...SW winds 5 to 10 kt. Seas around 2 ft. Wave Detail: SW 1 foot at 2 seconds and S 1 foot at 7 seconds. Patchy fog. Vsby 1 NM or less. .TUE...SW winds 5 to 10 kt, increasing to 10 to 15 kt with gusts up to 20 kt in the afternoon. Seas around 2 ft. Wave Detail: S 2 ft at 7 seconds and SW 1 foot at 3 seconds. Patchy fog in the morning with vsby 1 NM or less. .TUE NIGHT...SW winds 10 to 15 kt. Gusts up to 20 kt in the evening. Seas around 2 ft. Wave Detail: S 2 ft at 7 seconds and SW 1 foot at 3 seconds. Patchy fog. Vsby 1 to 3 NM, decreasing to 1 NM or less after midnight. .WED...SW winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft. Wave Detail: SW 2 ft at 4 seconds and S 2 ft at 7 seconds. Areas of fog in the morning. A chance of showers in the afternoon. Vsby 1 NM or less in the morning. .WED NIGHT...S winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft. Wave Detail: S 2 ft at 5 seconds. A chance of showers. .THU AND THU NIGHT...S winds 15 to 20 kt with gusts up to 30 kt. Seas 2 to 4 ft. A chance of showers. .FRI...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 4 ft. .FRI NIGHT...SW winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 4 ft. A chance of showers. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ235-090600- Rhode Island Sound- 104 PM EDT Mon Jul 8 2024 .THIS AFTERNOON...S winds 5 to 10 kt. Seas around 2 ft. Wave Detail: S 2 ft at 7 seconds. Patchy fog. Vsby 1 NM or less. .TONIGHT...SW winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: S 2 ft at 7 seconds. Patchy fog. Vsby 1 NM or less. .TUE...SW winds 5 to 10 kt, increasing to 10 to 15 kt with gusts up to 20 kt in the afternoon. Seas 2 to 3 ft. Wave Detail: S 3 ft at 7 seconds and SW 1 foot at 3 seconds. Patchy fog in the morning with vsby 1 NM or less. .TUE NIGHT...SW winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: S 3 ft at 7 seconds and SW 1 foot at 3 seconds. Patchy fog. Vsby 1 NM or less after midnight. .WED...SW winds 10 to 15 kt. Gusts up to 20 kt in the afternoon. Seas 2 to 3 ft. Wave Detail: S 3 ft at 7 seconds and SW 1 foot at 3 seconds. Areas of fog in the morning. A chance of showers in the afternoon. Vsby 1 NM or less in the morning. .WED NIGHT...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 SW 1 foot at 4 seconds. A chance of showers. .THU...S winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 4 ft. A chance of showers. .THU NIGHT THROUGH FRI NIGHT...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to 5 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. $$ ANZ237-090600- Block Island Sound- 104 PM EDT Mon Jul 8 2024 .THIS AFTERNOON...S winds around 5 kt. Seas around 2 ft. Wave Detail: SE 2 ft at 7 seconds. Patchy fog. Vsby 1 NM or less. .TONIGHT...SW winds 5 to 10 kt. Seas around 2 ft. Wave Detail: SE 2 ft at 7 seconds. Patchy fog. Vsby 1 NM or less. .TUE...SW winds 5 to 10 kt. Gusts up to 20 kt in the afternoon. Seas 2 to 3 ft. Wave Detail: S 3 ft at 7 seconds and SW 1 foot at 3 seconds. Patchy fog in the morning with vsby 1 NM or less. .TUE NIGHT...SW winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: SE 3 ft at 7 seconds and SW 1 foot at 3 seconds. Patchy fog. Vsby 1 NM or less after midnight. .WED...SW winds 10 to 15 kt. Gusts up to 20 kt in the afternoon. Seas 2 to 3 ft. Wave Detail: SE 3 ft at 7 seconds and SW 1 foot at 3 seconds. Areas of fog in the morning. A chance of showers in the afternoon. Vsby 1 NM or less in the morning. .WED NIGHT...S winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Wave Detail: SE 3 ft at 7 seconds and SW 1 foot at 3 seconds. A chance of showers. .THU...S winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 4 ft. A chance of showers. .THU NIGHT THROUGH FRI NIGHT...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to 5 ft. A chance of showers. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ230-090600- Boston Harbor- 104 PM EDT Mon Jul 8 2024 .THIS AFTERNOON...SE winds 5 to 10 kt. Waves 1 foot or less. .TONIGHT...S winds 5 to 10 kt. Waves 1 foot or less. .TUE...SW winds 5 to 10 kt, becoming S 10 to 15 kt in the afternoon. Waves 1 foot or less. .TUE NIGHT...SW winds 10 to 15 kt. Waves 1 foot or less. A chance of showers in the evening. .WED AND WED NIGHT...S winds 10 to 15 kt. Waves 1 foot or less. A chance of showers. .THU THROUGH FRI NIGHT...SW winds 15 to 20 kt with gusts up to 25 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. $$ ANZ236-090600- Narragansett Bay- 104 PM EDT Mon Jul 8 2024 .THIS AFTERNOON...S winds 5 to 10 kt. Waves around 2 ft. .TONIGHT...SW winds 5 to 10 kt. Waves around 2 ft. Patchy fog. Vsby 1 NM or less. .TUE...S winds 5 to 10 kt, increasing to 10 to 15 kt with gusts up to 20 kt in the afternoon. Waves around 2 ft. Patchy fog in the morning with vsby 1 NM or less. .TUE NIGHT...SW winds 10 to 15 kt. Waves 2 to 3 ft. Patchy fog. Vsby 1 to 3 NM after midnight. .WED...SW winds 5 to 10 kt, increasing to 10 to 15 kt with gusts up to 20 kt in the afternoon. Waves around 2 ft. Areas of fog in the morning. A chance of showers in the afternoon. Vsby 1 to 3 NM in the morning. .WED NIGHT...S winds 10 to 15 kt with gusts up to 20 kt. Waves 2 to 3 ft. A chance of showers. .THU THROUGH FRI NIGHT...SW winds 15 to 20 kt with gusts up to 25 kt. Waves 2 to 4 ft. A chance of showers. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ 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