


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
119 FZUS51 KBOX 151105 CWFBOX Coastal Waters Forecast for Massachusetts and Rhode Island National Weather Service Boston/Norton MA 705 AM EDT Sun Jun 15 2025 Coastal waters from the Merrimack River MA to Watch Hill RI out to 25 NM ANZ200-160000- 705 AM EDT Sun Jun 15 2025 .Synopsis for Massachusetts and Rhode Island coastal waters... High pres from the Maritimes builds into the ern MA waters providing elevated easterly winds Sun. This high will move offshore Mon then another low pres will track S of the waters Tue. Weak high pres builds into the waters Wed. $$ ANZ250-160000- Coastal waters east of Ipswich Bay and the Stellwagen Bank National Marine Sanctuary- 705 AM EDT Sun Jun 15 2025 .TODAY...E winds 5 to 10 kt. Seas around 2 ft. Wave Detail: E 2 ft at 5 seconds and SE 1 foot at 9 seconds. Patchy fog this afternoon. .TONIGHT...SE winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: SE 3 ft at 9 seconds. Patchy fog. .MON...E winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: E 3 ft at 8 seconds. Patchy fog in the morning. .MON NIGHT...SE winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: E 3 ft at 7 seconds. .TUE...SE winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: E 3 ft at 7 seconds. .TUE NIGHT...SE winds around 10 kt. Seas 2 to 3 ft. Wave Detail: SE 3 ft at 7 seconds. .WED AND WED NIGHT...S winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. .THU AND THU NIGHT...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to 5 ft. A chance of showers. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ251-160000- Massachusetts Bay and Ipswich Bay- 705 AM EDT Sun Jun 15 2025 .TODAY...E winds 5 to 10 kt. Seas around 2 ft. Wave Detail: E 2 ft at 5 seconds and SE 1 foot at 9 seconds. .TONIGHT...SE winds 5 to 10 kt. Seas around 2 ft. Wave Detail: E 2 ft at 8 seconds and SE 1 foot at 8 seconds. Patchy fog after midnight. .MON...E winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: E 3 ft at 8 seconds. .MON NIGHT...SE winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: E 3 ft at 7 seconds. .TUE...SE winds 5 to 10 kt. Seas around 2 ft. Wave Detail: E 2 ft at 7 seconds. .TUE NIGHT...S winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: SE 2 ft at 7 seconds. .WED AND WED NIGHT...S winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. .THU AND THU 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. $$ ANZ231-160000- Cape Cod Bay- 705 AM EDT Sun Jun 15 2025 .TODAY...NE winds 5 to 10 kt. Seas around 2 ft. Wave Detail: NE 1 foot at 3 seconds and S 1 foot at 7 seconds. .TONIGHT...E winds 5 to 10 kt. Seas 1 foot or less, then around 2 ft after midnight. Wave Detail: E 1 foot at 2 seconds and S 1 foot at 8 seconds, becoming E 2 ft at 2 seconds and S 1 foot at 7 seconds. Patchy fog after midnight. .MON...E winds 5 to 10 kt. Seas around 2 ft. Wave Detail: E 2 ft at 2 seconds and S 1 foot at 8 seconds. .MON NIGHT...SE winds 5 to 10 kt. Seas around 2 ft. Wave Detail: E 2 ft at 2 seconds and S 1 foot at 8 seconds. .TUE...E winds 5 to 10 kt. Seas around 2 ft. Wave Detail: E 2 ft at 2 seconds and S 1 foot at 7 seconds. .TUE NIGHT...SE winds 5 to 10 kt. Seas around 2 ft. Wave Detail: SE 2 ft at 6 seconds. .WED AND WED NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft. .THU...SW winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 4 ft. A chance of showers. .THU NIGHT...SW winds around 15 kt with gusts up to 25 kt. Seas 2 to 3 ft. A chance of showers. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ254-160000- Coastal waters from Provincetown MA to Chatham MA to Nantucket MA out 20 nm- 705 AM EDT Sun Jun 15 2025 .TODAY...E winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: SE 3 ft at 8 seconds. Patchy fog this afternoon. .TONIGHT...E winds 5 to 10 kt. Seas 2 to 4 ft. Wave Detail: E 4 ft at 8 seconds and S 2 ft at 8 seconds. Patchy fog. .MON...E winds 10 to 15 kt. Seas 3 to 4 ft. Wave Detail: E 4 ft at 8 seconds and S 2 ft at 7 seconds. .MON NIGHT...E winds around 10 kt. Seas 2 to 3 ft. Wave Detail: SE 3 ft at 7 seconds. .TUE...E winds around 10 kt. Seas 2 to 3 ft. Wave Detail: SE 3 ft at 7 seconds. .TUE NIGHT...SE winds 5 to 10 kt, becoming S after midnight. Seas 2 to 3 ft. Wave Detail: S 3 ft at 7 seconds. .WED THROUGH THU...SW winds 10 to 15 kt with gusts up to 25 kt. Seas 3 to 5 ft. .THU NIGHT...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 4 to 6 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. $$ ANZ255-160000- Coastal Waters extending out to 25 nm South of Marthas Vineyard and Nantucket- 705 AM EDT Sun Jun 15 2025 .TODAY...NE winds 10 to 15 kt. Gusts up to 20 kt this morning. Seas 3 to 4 ft. Wave Detail: E 3 ft at 6 seconds and S 2 ft at 8 seconds. .TONIGHT...E winds 10 to 15 kt. Seas 2 to 4 ft. Wave Detail: SE 3 ft at 7 seconds. .MON...E winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. Wave Detail: E 4 ft at 8 seconds and S 2 ft at 7 seconds. .MON NIGHT...E winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: E 3 ft at 8 seconds and S 1 foot at 7 seconds. .TUE...E winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: SE 3 ft at 7 seconds. .TUE NIGHT...SE winds around 10 kt, becoming S after midnight. Seas 2 to 3 ft. Wave Detail: S 3 ft at 7 seconds. .WED AND WED NIGHT...SW winds 10 to 15 kt. Seas 3 to 4 ft. .THU...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 4 to 6 ft. .THU NIGHT...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 4 to 6 ft. A chance of showers. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ256-160000- Coastal Waters from Montauk NY to Marthas Vineyard extending out to 20 nm South of Block Island- 705 AM EDT Sun Jun 15 2025 .TODAY...NE winds 10 to 15 kt. Gusts up to 20 kt this morning. Seas 3 to 4 ft. Wave Detail: NE 4 ft at 6 seconds and S 2 ft at 8 seconds. .TONIGHT...E winds 10 to 15 kt. Seas 3 to 4 ft. Wave Detail: SE 3 ft at 7 seconds and S 2 ft at 8 seconds. .MON...E winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 4 ft. Wave Detail: E 4 ft at 8 seconds and S 2 ft at 8 seconds. .MON NIGHT...E winds 10 to 15 kt. Gusts up to 20 kt in the evening. Seas 3 to 4 ft. Wave Detail: E 4 ft at 8 seconds and S 1 foot at 8 seconds. .TUE...E winds 10 to 15 kt. Seas around 3 ft. Wave Detail: SE 3 ft at 7 seconds. .TUE NIGHT...SE winds 5 to 10 kt, becoming S after midnight. Seas around 3 ft. Wave Detail: SE 3 ft at 7 seconds. .WED THROUGH THU...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to 5 ft. .THU NIGHT...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 4 to 6 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. $$ ANZ232-160000- Nantucket Sound- 705 AM EDT Sun Jun 15 2025 .TODAY...NE winds 10 to 15 kt. Seas around 2 ft. Wave Detail: E 2 ft at 5 seconds and S 1 foot at 6 seconds. .TONIGHT...E winds around 10 kt. Seas around 2 ft. Wave Detail: E 2 ft at 5 seconds and S 1 foot at 8 seconds. .MON...E winds 10 to 15 kt. Seas around 2 ft. Wave Detail: E 2 ft at 5 seconds and S 1 foot at 8 seconds. .MON NIGHT...E winds around 10 kt. Seas around 2 ft. Wave Detail: SE 2 ft at 7 seconds. .TUE...E winds around 10 kt. Seas around 2 ft. Wave Detail: SE 2 ft at 7 seconds. .TUE NIGHT...SE winds 5 to 10 kt, becoming S after midnight. Seas around 2 ft. Wave Detail: SE 2 ft at 7 seconds. .WED AND WED NIGHT...SW winds 10 to 15 kt. Gusts up to 20 kt. Seas around 2 ft. .THU...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 4 ft. .THU NIGHT...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to 4 ft. A chance of showers. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ233-160000- Vineyard Sound- 705 AM EDT Sun Jun 15 2025 .TODAY...NE winds 10 to 15 kt. Seas around 2 ft. Wave Detail: S 2 ft at 8 seconds and NE 1 foot at 3 seconds. .TONIGHT...E winds 5 to 10 kt. Seas around 2 ft. Wave Detail: S 2 ft at 8 seconds and E 1 foot at 3 seconds. .MON...E winds 10 to 15 kt. Seas around 2 ft. Wave Detail: E 1 foot at 3 seconds and S 1 foot at 7 seconds. .MON NIGHT...E winds 10 to 15 kt. Seas around 2 ft. Wave Detail: E 1 foot at 3 seconds and S 1 foot at 7 seconds. .TUE...E winds around 10 kt. Seas around 2 ft. Wave Detail: E 1 foot at 3 seconds and S 1 foot at 7 seconds. .TUE NIGHT...SE winds 5 to 10 kt, becoming S after midnight. Seas around 2 ft. Wave Detail: SE 2 ft at 7 seconds. .WED AND WED NIGHT...SW winds 10 to 15 kt. Seas around 2 ft. .THU...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 4 ft. .THU NIGHT...SW winds 15 to 20 kt with gusts up to 25 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. $$ ANZ234-160000- Buzzards Bay- 705 AM EDT Sun Jun 15 2025 .TODAY...NE winds 5 to 10 kt. Seas around 2 ft. Wave Detail: NE 1 foot at 3 seconds and S 1 foot at 8 seconds. .TONIGHT...E winds 5 to 10 kt. Seas around 2 ft. Wave Detail: E 1 foot at 2 seconds and S 1 foot at 8 seconds. Patchy fog after midnight. .MON...E winds 10 to 15 kt. Seas around 2 ft. Wave Detail: E 1 foot at 2 seconds and S 1 foot at 7 seconds. .MON NIGHT...E winds 5 to 10 kt. Seas around 2 ft. Wave Detail: E 1 foot at 3 seconds and S 1 foot at 7 seconds. .TUE...E winds 5 to 10 kt. Seas 1 foot or less, then around 2 ft in the afternoon. Wave Detail: E 1 foot at 2 seconds and S 1 foot at 7 seconds. .TUE NIGHT...SE winds 5 to 10 kt, becoming S after midnight. Seas 1 foot or less, then around 2 ft after midnight. Wave Detail: E 1 foot at 2 seconds and S 1 foot at 7 seconds, becoming SE 2 ft at 5 seconds and SE 1 foot at 8 seconds. .WED AND WED NIGHT...SW winds 10 to 15 kt. Gusts up to 20 kt. Seas around 2 ft. .THU...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 4 ft. .THU NIGHT...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 3 ft. A chance of showers. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ235-160000- Rhode Island Sound- 705 AM EDT Sun Jun 15 2025 .TODAY...NE winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: NE 3 ft at 5 seconds and S 2 ft at 8 seconds. .TONIGHT...E winds around 10 kt. Seas 2 to 3 ft. Wave Detail: SE 2 ft at 7 seconds and S 2 ft at 8 seconds. Patchy fog after midnight. .MON...E winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: E 3 ft at 7 seconds and S 2 ft at 8 seconds. .MON NIGHT...E winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: E 3 ft at 8 seconds and S 1 foot at 8 seconds. .TUE...E winds around 10 kt. Seas 2 to 3 ft. Wave Detail: SE 3 ft at 8 seconds. .TUE NIGHT...SE winds 5 to 10 kt, becoming S after midnight. Seas 2 to 3 ft. Wave Detail: SE 3 ft at 7 seconds. .WED THROUGH THU...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 4 ft. .THU 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. $$ ANZ237-160000- Block Island Sound- 705 AM EDT Sun Jun 15 2025 .TODAY...NE winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: E 3 ft at 5 seconds and S 2 ft at 8 seconds. .TONIGHT...E winds around 10 kt. Seas 2 to 3 ft. Wave Detail: SE 2 ft at 7 seconds. Patchy fog after midnight. .MON...E winds 10 to 15 kt. Gusts up to 20 kt in the afternoon. Seas 2 to 3 ft. Wave Detail: SE 3 ft at 7 seconds. .MON NIGHT...E winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: E 3 ft at 8 seconds and S 1 foot at 8 seconds. .TUE...E winds around 10 kt. Seas 2 to 3 ft. Wave Detail: SE 3 ft at 8 seconds. .TUE NIGHT...SE winds 5 to 10 kt, becoming S after midnight. Seas 2 to 3 ft. Wave Detail: SE 3 ft at 7 seconds. A chance of showers after midnight. .WED AND WED NIGHT...SW winds 5 to 10 kt. Seas 2 to 3 ft. .THU...SW winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 4 ft. A chance of showers. .THU NIGHT...W winds around 15 kt with gusts up to 25 kt. Seas 3 to 4 ft. A chance of showers. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ230-160000- Boston Harbor- 705 AM EDT Sun Jun 15 2025 .TODAY...E winds 5 to 10 kt. Waves 1 foot or less. .TONIGHT...E winds 5 to 10 kt. Waves 1 foot or less. Patchy fog after midnight. .MON...E winds 5 to 10 kt. Waves 1 foot or less, then around 2 ft in the afternoon. .MON NIGHT...SE winds 5 to 10 kt. Waves around 2 ft in the evening, then 1 foot or less. .TUE...E winds 5 to 10 kt. Waves 1 foot or less, then around 2 ft in the afternoon. .TUE NIGHT...SE winds 5 to 10 kt. Waves around 2 ft in the evening, then 1 foot or less. .WED AND WED NIGHT...SW winds 10 to 15 kt. Waves around 2 ft. .THU AND 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. $$ ANZ236-160000- Narragansett Bay- 705 AM EDT Sun Jun 15 2025 .TODAY...NE winds 5 to 10 kt. Waves around 2 ft. .TONIGHT...E winds 5 to 10 kt. Waves around 2 ft. Patchy fog after midnight. .MON...E winds 5 to 10 kt. Waves around 2 ft. .MON NIGHT...E winds 5 to 10 kt. Waves around 2 ft. .TUE...E winds 5 to 10 kt. Waves around 2 ft. .TUE NIGHT...S winds 5 to 10 kt. Waves around 2 ft. .WED AND WED NIGHT...SW winds 5 to 10 kt. Waves around 2 ft. .THU AND THU NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Waves 2 to 3 ft. A chance of showers. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ 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