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
895 FZUS51 KBOX 160505 CWFBOX Coastal Waters Forecast for Massachusetts and Rhode Island National Weather Service Boston/Norton MA 105 AM EDT Wed Sep 16 2026 Coastal waters from the Merrimack River MA to Watch Hill RI out to 60 NM ANZ200-161800- 105 AM EDT Wed Sep 16 2026 .Synopsis for Massachusetts and Rhode Island coastal waters... High pres overhead today bringing dry conditions and light winds. High then shifts southeast of the waters by Wed-Thu ahead of an approaching cold front. Cold front will cross the waters Thu night into early Fri followed by high pres building across the waters Sat. $$ ANZ250-161800- Coastal waters east of Ipswich Bay and the Stellwagen Bank National Marine Sanctuary- 105 AM EDT Wed Sep 16 2026 .REST OF TONIGHT...SW winds around 5 kt. Seas around 2 ft. Wave Detail: N 2 ft at 5 seconds and SW 1 foot at 3 seconds. .WED...S winds 5 to 10 kt. Seas around 2 ft. Wave Detail: SW 2 ft at 4 seconds and E 1 foot at 5 seconds. .WED NIGHT...SW winds 5 to 10 kt. Seas around 2 ft. Wave Detail: SW 2 ft at 3 seconds and S 2 ft at 3 seconds. .THU...S winds 5 to 10 kt. Seas around 2 ft. Wave Detail: E 2 ft at 7 seconds and NE 2 ft at 8 seconds. .THU NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Wave Detail: S 2 ft at 3 seconds and E 2 ft at 7 seconds. A chance of showers. .FRI...W winds around 10 kt with gusts up to 20 kt, becoming NW in the afternoon. Seas 2 to 3 ft. Wave Detail: W 2 ft at 3 seconds and S 2 ft at 4 seconds. A chance of showers in the morning. .FRI NIGHT...N winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 4 ft. .SAT AND SAT NIGHT...NE winds 10 to 15 kt with gusts up to 20 kt, becoming S 5 to 10 kt. Seas 2 to 4 ft. .SUN AND SUN NIGHT...SE winds around 10 kt, becoming NE with gusts up to 20 kt. Seas 2 to 4 ft. A chance of showers. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ251-161800- Massachusetts Bay and Ipswich Bay- 105 AM EDT Wed Sep 16 2026 .REST OF TONIGHT...SW winds around 5 kt. Seas around 2 ft. Wave Detail: NE 2 ft at 5 seconds and S 1 foot at 2 seconds. .WED...S winds 5 to 10 kt. Seas around 2 ft. Wave Detail: SW 1 foot at 2 seconds and NW 1 foot at 4 seconds. .WED NIGHT...SW winds 5 to 10 kt. Seas around 2 ft. Wave Detail: SW 2 ft at 4 seconds and E 1 foot at 6 seconds. .THU...N winds around 5 kt, becoming SE in the afternoon. Seas around 2 ft. Wave Detail: E 2 ft at 6 seconds and W 1 foot at 2 seconds. .THU NIGHT...S winds 5 to 10 kt, becoming SW 10 to 15 kt with gusts up to 20 kt after midnight. Seas around 2 ft. Wave Detail: S 2 ft at 3 seconds and E 2 ft at 7 seconds. A chance of showers. .FRI...NW winds 5 to 10 kt with gusts up to 20 kt. Seas around 2 ft. Wave Detail: E 2 ft at 7 seconds and NW 1 foot at 2 seconds. A chance of showers in the morning. .FRI NIGHT...N winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. .SAT...NE winds 10 to 15 kt. Seas 2 to 3 ft. .SAT NIGHT THROUGH SUN NIGHT...NE winds 10 to 15 kt with gusts up to 20 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. $$ ANZ231-161800- Cape Cod Bay- 105 AM EDT Wed Sep 16 2026 .REST OF TONIGHT...SW winds around 5 kt. Seas around 2 ft. Wave Detail: S 1 foot at 5 seconds and N 1 foot at 5 seconds. .WED...SW winds around 5 kt, becoming S in the afternoon. Seas 1 foot or less, then around 2 ft in the afternoon. Wave Detail: SW 1 foot at 3 seconds and N 1 foot at 5 seconds, becoming S 1 foot at 2 seconds and N 1 foot at 4 seconds. .WED NIGHT...SW winds 5 to 10 kt. Seas around 2 ft in the evening, then 1 foot or less. Wave Detail: SW 1 foot at 3 seconds and NE 1 foot at 5 seconds, becoming SW 1 foot at 2 seconds and NE 1 foot at 4 seconds. .THU...SW winds 5 to 10 kt. Seas 1 foot or less, then around 2 ft in the afternoon. Wave Detail: W 1 foot at 2 seconds and SW 1 foot at 2 seconds, becoming SW 1 foot at 2 seconds and W 1 foot at 3 seconds. .THU NIGHT...SW winds 10 to 15 kt. Gusts up to 20 kt after midnight. Seas around 2 ft. Wave Detail: SW 1 foot at 2 seconds and W 1 foot at 3 seconds. A chance of showers after midnight. .FRI...W winds around 10 kt, becoming N in the afternoon. Gusts up to 20 kt. Seas 2 to 3 ft. Wave Detail: W 1 foot at 3 seconds and SW 1 foot at 3 seconds. A chance of showers in the morning. .FRI NIGHT...N winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 3 ft. .SAT AND SAT NIGHT...NE winds 10 to 15 kt with gusts up to 20 kt, becoming SE around 5 kt. Seas around 2 ft. .SUN AND SUN NIGHT...SE winds 5 to 10 kt, becoming NE 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft. A chance of showers. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ254-161800- Coastal waters from Provincetown MA to Chatham MA to Nantucket MA out 20 NM- 105 AM EDT Wed Sep 16 2026 .REST OF TONIGHT...S winds around 5 kt. Seas 2 to 3 ft. Wave Detail: N 2 ft at 5 seconds and S 1 foot at 6 seconds. .WED...SW winds around 5 kt, becoming S in the afternoon. Seas 2 to 3 ft. Wave Detail: N 2 ft at 5 seconds and SE 2 ft at 9 seconds. .WED NIGHT...SW winds 5 to 10 kt. Seas around 2 ft. Wave Detail: E 2 ft at 7 seconds and SW 1 foot at 3 seconds. .THU...S winds 5 to 10 kt. Seas around 2 ft. Wave Detail: E 2 ft at 7 seconds and W 1 foot at 3 seconds. .THU NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Wave Detail: S 2 ft at 3 seconds and E 2 ft at 7 seconds. A chance of showers after midnight. .FRI...W winds 10 to 15 kt, becoming NW in the afternoon. Gusts up to 20 kt. Seas 2 to 3 ft. Wave Detail: W 2 ft at 3 seconds and SW 2 ft at 4 seconds. A chance of showers in the morning. .FRI NIGHT...N winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 4 ft. .SAT AND SAT NIGHT...NE winds 10 to 15 kt with gusts up to 20 kt, becoming SE 5 to 10 kt. Seas 2 to 4 ft. .SUN AND SUN NIGHT...SE winds 5 to 10 kt, becoming NE 10 to 15 kt with gusts up to 20 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. $$ ANZ255-161800- Coastal Waters extending out to 25 NM South of Marthas Vineyard and Nantucket- 105 AM EDT Wed Sep 16 2026 .REST OF TONIGHT...E winds around 5 kt. Seas around 2 ft. Wave Detail: E 2 ft at 5 seconds and NW 1 foot at 3 seconds. .WED...SW winds around 5 kt, increasing to 5 to 10 kt in the afternoon. Seas around 2 ft. Wave Detail: E 2 ft at 5 seconds and N 1 foot at 4 seconds. .WED NIGHT...SW winds 5 to 10 kt. Seas around 2 ft. Wave Detail: E 2 ft at 6 seconds and SE 2 ft at 9 seconds. .THU...S winds 5 to 10 kt. Seas around 2 ft. Wave Detail: E 2 ft at 7 seconds and SW 1 foot at 4 seconds. .THU NIGHT...SW winds 10 to 15 kt. Gusts up to 20 kt after midnight. Seas 2 to 3 ft. Wave Detail: SW 3 ft at 4 seconds and W 2 ft at 3 seconds. A chance of showers after midnight. .FRI...W winds around 15 kt, becoming NW in the afternoon. Gusts up to 20 kt. Seas 2 to 3 ft. Wave Detail: W 3 ft at 4 seconds and SW 3 ft at 5 seconds. A chance of showers in the morning. .FRI NIGHT...N winds 10 to 15 kt, becoming NE 15 to 20 kt after midnight. Seas 2 to 4 ft. .SAT AND SAT NIGHT...NE winds 10 to 15 kt with gusts up to 20 kt, becoming SE 5 to 10 kt. Seas 2 to 3 ft. .SUN AND SUN NIGHT...SE winds 10 to 15 kt, becoming NE 15 to 20 kt. Seas 3 to 5 ft. A chance of showers. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ256-161800- Coastal Waters from Montauk NY to Marthas Vineyard extending out to 20 NM South of Block Island- 105 AM EDT Wed Sep 16 2026 .REST OF TONIGHT...S winds around 5 kt. Seas around 2 ft. Wave Detail: N 1 foot at 3 seconds and SE 1 foot at 6 seconds. .WED...SW winds around 5 kt, increasing to 5 to 10 kt in the afternoon. Seas around 2 ft. Wave Detail: SW 2 ft at 9 seconds and E 1 foot at 5 seconds. .WED NIGHT...SW winds 5 to 10 kt. Seas around 2 ft. Wave Detail: SW 2 ft at 3 seconds and E 2 ft at 7 seconds. .THU...SW winds 5 to 10 kt. Seas around 2 ft. Wave Detail: SW 2 ft at 3 seconds and W 2 ft at 4 seconds. .THU NIGHT...SW winds 10 to 15 kt, increasing to 15 to 20 kt after midnight. Seas 2 to 4 ft. Wave Detail: SW 3 ft at 4 seconds and E 2 ft at 7 seconds. .FRI AND FRI NIGHT...NE winds 15 to 20 kt. Seas 2 to 4 ft. Wave Detail: NE 3 ft at 4 seconds and W 3 ft at 5 seconds. .SAT AND SAT NIGHT...E winds 15 to 20 kt, becoming SE around 10 kt. Seas 2 to 4 ft. .SUN AND SUN NIGHT...SE winds 10 to 15 kt, becoming NE 15 to 20 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. $$ ANZ232-161800- Nantucket Sound- 105 AM EDT Wed Sep 16 2026 .REST OF TONIGHT...S winds around 5 kt. Seas around 2 ft. Wave Detail: NE 1 foot at 5 seconds and S 1 foot at 6 seconds. .WED...SW winds 5 to 10 kt. Seas around 2 ft. Wave Detail: N 1 foot at 4 seconds and E 1 foot at 5 seconds. .WED NIGHT...SW winds 5 to 10 kt. Seas around 2 ft. Wave Detail: W 1 foot at 4 seconds and E 1 foot at 6 seconds. .THU...SW winds 5 to 10 kt. Seas around 2 ft. Wave Detail: W 1 foot at 2 seconds and SW 1 foot at 3 seconds. .THU NIGHT...SW winds 10 to 15 kt. Gusts up to 20 kt after midnight. Seas 2 to 3 ft. Wave Detail: SW 2 ft at 3 seconds and W 2 ft at 3 seconds. A chance of showers after midnight. .FRI...W winds 10 to 15 kt, becoming N in the afternoon. Gusts up to 20 kt. Seas 2 to 3 ft. Wave Detail: W 2 ft at 3 seconds and SW 2 ft at 4 seconds. A chance of showers in the morning. .FRI NIGHT...N winds 10 to 15 kt, becoming NE 15 to 20 kt after midnight. Seas 2 to 3 ft. .SAT AND SAT NIGHT...NE winds 10 to 15 kt with gusts up to 20 kt, becoming SE 5 to 10 kt. Seas 2 to 3 ft. .SUN AND SUN NIGHT...SE winds 10 to 15 kt, becoming NE 15 to 20 kt. Seas 2 to 3 ft. A chance of showers. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ233-161800- Vineyard Sound- 105 AM EDT Wed Sep 16 2026 .REST OF TONIGHT...S winds around 5 kt. Seas 1 foot or less. Wave Detail: N 1 foot at 3 seconds and E 1 foot at 3 seconds. .WED...SW winds 5 to 10 kt. Seas 1 foot or less, then around 2 ft in the afternoon. Wave Detail: N 1 foot at 4 seconds and SE 1 foot at 6 seconds, becoming W 2 ft at 3 seconds and E 1 foot at 5 seconds. .WED NIGHT...SW winds 5 to 10 kt. Seas around 2 ft in the evening, then 1 foot or less. Wave Detail: W 2 ft at 4 seconds and E 1 foot at 5 seconds, becoming W 1 foot at 3 seconds and E 1 foot at 5 seconds. .THU...SW winds 5 to 10 kt. Seas 1 foot or less, then around 2 ft in the afternoon. Wave Detail: W 1 foot at 2 seconds and SW 1 foot at 3 seconds, becoming W 2 ft at 3 seconds and SW 1 foot at 3 seconds. .THU NIGHT...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 E 1 foot at 7 seconds. A chance of showers after midnight. .FRI...W winds 10 to 15 kt with gusts up to 20 kt, becoming NW in the afternoon. Seas around 2 ft. Wave Detail: W 2 ft at 3 seconds and SW 2 ft at 5 seconds. A chance of showers in the morning. .FRI NIGHT...N winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft. .SAT AND SAT NIGHT...E winds 10 to 15 kt, becoming SE 5 to 10 kt. Seas around 2 ft. .SUN AND SUN NIGHT...SE winds 10 to 15 kt, becoming NE. Gusts up to 20 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. $$ ANZ234-161800- Buzzards Bay- 105 AM EDT Wed Sep 16 2026 .REST OF TONIGHT...SW winds around 5 kt. Seas 1 foot or less. Wave Detail: N 1 foot at 3 seconds and SE 1 foot at 4 seconds. .WED...SW winds 5 to 10 kt, increasing to 10 to 15 kt in the afternoon. Seas 1 foot or less, then around 2 ft in the afternoon. Wave Detail: NW 1 foot at 4 seconds and SE 1 foot at 6 seconds, becoming W 2 ft at 4 seconds and E 1 foot at 5 seconds. .WED NIGHT...SW winds 5 to 10 kt. Seas around 2 ft in the evening, then 1 foot or less. Wave Detail: W 2 ft at 4 seconds and E 1 foot at 5 seconds, becoming E 1 foot at 4 seconds and W 1 foot at 4 seconds. .THU...SW winds 5 to 10 kt, increasing to 10 to 15 kt with gusts up to 20 kt in the afternoon. Seas 1 foot or less, then around 2 ft in the afternoon. Wave Detail: W 1 foot at 2 seconds and SW 1 foot at 3 seconds, becoming W 2 ft at 4 seconds and SW 1 foot at 3 seconds. .THU NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft. Wave Detail: SW 2 ft at 4 seconds and E 1 foot at 7 seconds. A chance of showers after midnight. .FRI...W winds 10 to 15 kt with gusts up to 20 kt, becoming N 5 to 10 kt in the afternoon. Seas around 2 ft. Wave Detail: SW 2 ft at 5 seconds and W 1 foot at 3 seconds. A chance of showers in the morning. .FRI NIGHT...N winds 10 to 15 kt. Seas around 2 ft. .SAT AND SAT NIGHT...NE winds 10 to 15 kt, becoming SE 5 to 10 kt. Seas around 2 ft. .SUN AND SUN NIGHT...SE winds 10 to 15 kt, becoming NE. Gusts up to 20 kt. Seas 2 to 3 ft. A chance of showers. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ235-161800- Rhode Island Sound- 105 AM EDT Wed Sep 16 2026 .REST OF TONIGHT...S winds around 5 kt. Seas 1 foot or less. Wave Detail: E 1 foot at 3 seconds and N 1 foot at 4 seconds. .WED...SW winds 5 to 10 kt. Seas 1 foot or less, then around 2 ft in the afternoon. Wave Detail: NW 1 foot at 4 seconds and SE 1 foot at 5 seconds, becoming SW 2 ft at 3 seconds and E 1 foot at 5 seconds. .WED NIGHT...SW winds 5 to 10 kt. Seas around 2 ft. Wave Detail: SW 2 ft at 3 seconds and E 1 foot at 5 seconds. .THU...SW winds 5 to 10 kt. Seas around 2 ft. Wave Detail: SW 2 ft at 3 seconds and W 2 ft at 4 seconds. .THU NIGHT...SW 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 E 1 foot at 7 seconds. A chance of showers after midnight. .FRI...W winds 10 to 15 kt with gusts up to 20 kt, becoming NW 5 to 10 kt in the afternoon. Seas 2 to 3 ft. Wave Detail: W 3 ft at 4 seconds and SE 1 foot at 8 seconds. A chance of showers in the morning. .FRI NIGHT...N winds 15 to 20 kt. Seas 2 to 3 ft. .SAT AND SAT NIGHT...E winds 10 to 15 kt with gusts up to 20 kt, becoming SE. Seas 2 to 3 ft. .SUN...SE winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. A chance of showers. .SUN NIGHT...NE winds 15 to 20 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. $$ ANZ237-161800- Block Island Sound- 105 AM EDT Wed Sep 16 2026 .REST OF TONIGHT...S winds around 5 kt. Seas 1 foot or less. Wave Detail: N 1 foot at 3 seconds and SE 1 foot at 5 seconds. .WED...SW winds 5 to 10 kt. Seas 1 foot or less, then around 2 ft in the afternoon. Wave Detail: E 1 foot at 4 seconds and S 1 foot at 6 seconds, becoming SW 2 ft at 3 seconds and E 1 foot at 5 seconds. .WED NIGHT...SW winds 5 to 10 kt. Seas around 2 ft. Wave Detail: SW 2 ft at 3 seconds and E 1 foot at 5 seconds. .THU...SW winds 5 to 10 kt. Seas around 2 ft. Wave Detail: W 2 ft at 4 seconds and SW 1 foot at 3 seconds. .THU NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Wave Detail: SW 2 ft at 3 seconds and SE 1 foot at 8 seconds. .FRI AND FRI NIGHT...NE winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Wave Detail: NE 2 ft at 3 seconds and SW 2 ft at 4 seconds. .SAT AND SAT NIGHT...E winds 10 to 15 kt with gusts up to 20 kt, becoming SE 5 to 10 kt. Seas 2 to 3 ft. .SUN AND SUN NIGHT...SE winds 10 to 15 kt, becoming NE. Gusts up to 20 kt. Seas 2 to 4 ft. A chance of showers. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ230-161800- Boston Harbor- 105 AM EDT Wed Sep 16 2026 .REST OF TONIGHT...SW winds around 5 kt. Waves 1 foot or less. .WED...S winds 5 to 10 kt. Waves 1 foot or less. .WED NIGHT...SW winds 5 to 10 kt, diminishing to around 5 kt after midnight. Waves 1 foot or less. .THU...N winds around 5 kt, becoming E in the afternoon. Waves 1 foot or less. .THU NIGHT...S winds 5 to 10 kt, becoming SW after midnight. Waves 1 foot or less. A chance of showers. .FRI AND FRI NIGHT...N winds 5 to 10 kt with gusts up to 20 kt. Waves around 2 ft. .SAT...NE winds 5 to 10 kt. Waves 1 foot or less. .SAT NIGHT THROUGH SUN NIGHT...NE winds 5 to 10 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. $$ ANZ236-161800- Narragansett Bay- 105 AM EDT Wed Sep 16 2026 .REST OF TONIGHT...SW winds around 5 kt. Waves 1 foot or less. .WED...SW winds 5 to 10 kt. Waves 1 foot or less, then around 2 ft in the afternoon. .WED NIGHT...SW winds 5 to 10 kt. Waves around 2 ft in the evening, then 1 foot or less. .THU...SW winds 5 to 10 kt. Gusts up to 20 kt in the afternoon. Waves 1 foot or less, then around 2 ft in the afternoon. .THU NIGHT...SW winds 10 to 15 kt. Gusts up to 20 kt after midnight. Waves around 2 ft. A chance of showers after midnight. .FRI...W winds around 10 kt, becoming N in the afternoon. Waves around 2 ft. A chance of showers in the morning. .FRI NIGHT...N winds 5 to 10 kt. Waves around 2 ft. .SAT...E winds 5 to 10 kt. Waves around 2 ft. .SAT NIGHT THROUGH SUN NIGHT...NE winds 10 to 15 kt with gusts up to 20 kt. Waves 2 to 3 ft. A chance of showers. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ280-161800- Ocean Waters from the Merrimack River to Plymouth from 40 to 60 NM- 105 AM EDT Wed Sep 16 2026 .REST OF TONIGHT...SW winds around 5 kt. Seas around 2 ft. Wave Detail: NE 2 ft at 5 seconds and NW 1 foot at 2 seconds. .WED...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: SW 2 ft at 3 seconds and E 2 ft at 9 seconds. .WED NIGHT...SW winds 10 to 15 kt, diminishing to 5 to 10 kt after midnight. Seas 2 to 3 ft. Wave Detail: E 3 ft at 8 seconds and S 2 ft at 4 seconds. .THU...S winds 5 to 10 kt. Seas around 2 ft. Wave Detail: NE 2 ft at 7 seconds and W 1 foot at 3 seconds. .THU NIGHT...SW winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 3 ft. Wave Detail: SW 3 ft at 4 seconds and E 2 ft at 7 seconds. A chance of showers in the evening, then showers likely after midnight. .FRI...W winds 10 to 15 kt, becoming NW in the afternoon. Gusts up to 20 kt. Seas 2 to 3 ft. Wave Detail: SW 3 ft at 4 seconds and NW 3 ft at 4 seconds. Showers likely in the morning. .FRI NIGHT...N winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to 5 ft. .SAT AND SAT NIGHT...NE winds 10 to 15 kt with gusts up to 20 kt, becoming SE 5 to 10 kt. Seas 2 to 4 ft. .SUN AND SUN NIGHT...SE winds 10 to 15 kt, becoming E with gusts up to 20 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. $$ ANZ281-161800- Ocean Waters from Provincetown to Nantucket from 20 to 60 NM- 105 AM EDT Wed Sep 16 2026 .REST OF TONIGHT...E winds around 5 kt. Seas 2 to 3 ft. Wave Detail: N 3 ft at 6 seconds and S 1 foot at 6 seconds. .WED...W winds around 5 kt, becoming SW in the afternoon. Seas 2 to 3 ft. Wave Detail: N 2 ft at 6 seconds and SE 2 ft at 9 seconds. .WED NIGHT...SW winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: E 3 ft at 8 seconds and SW 1 foot at 4 seconds. .THU...S winds 5 to 10 kt. Seas around 2 ft. Wave Detail: E 2 ft at 7 seconds and W 1 foot at 3 seconds. .THU NIGHT...SW winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 3 ft. Wave Detail: SW 2 ft at 3 seconds and E 2 ft at 7 seconds. A chance of showers after midnight. .FRI...W winds around 15 kt, becoming NW in the afternoon. Gusts up to 20 kt. Seas 2 to 3 ft. Wave Detail: SW 3 ft at 4 seconds and W 3 ft at 4 seconds. A chance of showers in the morning. .FRI NIGHT...N winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to 4 ft. .SAT AND SAT NIGHT...NE winds 10 to 15 kt with gusts up to 20 kt, becoming E 5 to 10 kt. Seas 3 to 4 ft. .SUN AND SUN NIGHT...SE winds 5 to 10 kt, becoming E 10 to 15 kt with gusts up to 20 kt. Seas 3 to 5 ft. A chance of showers. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ282-161800- Ocean Waters from Marthas Vineyard to Nantucket from 25 to 60 NM- 105 AM EDT Wed Sep 16 2026 .REST OF TONIGHT...NE winds around 5 kt. Seas 2 to 3 ft. Wave Detail: NE 3 ft at 6 seconds and NW 1 foot at 3 seconds. .WED...NE winds around 5 kt, becoming SW in the afternoon. Seas 2 to 3 ft. Wave Detail: N 3 ft at 5 seconds and SE 1 foot at 9 seconds. .WED NIGHT...SW winds around 5 kt. Seas 2 to 3 ft. Wave Detail: E 2 ft at 7 seconds and SW 1 foot at 4 seconds. .THU...S winds 5 to 10 kt. Seas around 2 ft. Wave Detail: E 2 ft at 7 seconds and SE 2 ft at 9 seconds. .THU NIGHT...S winds 5 to 10 kt, becoming SW 10 to 15 kt with gusts up to 20 kt after midnight. Seas 2 to 3 ft. Wave Detail: W 2 ft at 4 seconds and E 2 ft at 7 seconds. .FRI AND FRI NIGHT...NE winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 4 ft. Wave Detail: NE 3 ft at 4 seconds and W 3 ft at 5 seconds. .SAT AND SAT NIGHT...NE winds 10 to 15 kt with gusts up to 20 kt, becoming E 5 to 10 kt. Seas 3 to 4 ft. .SUN AND SUN NIGHT...SE winds 10 to 15 kt, becoming NE with gusts up to 20 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. $$ ANZ283-161800- Ocean Waters from Montauk NY to Marthas Vineyard from 25 to 60 NM- 105 AM EDT Wed Sep 16 2026 .REST OF TONIGHT...E winds around 5 kt. Seas 2 to 3 ft. Wave Detail: NE 2 ft at 4 seconds and SE 1 foot at 9 seconds. .WED...NE winds around 5 kt, becoming SW in the afternoon. Seas around 2 ft. Wave Detail: E 2 ft at 6 seconds and NW 1 foot at 3 seconds. .WED NIGHT...SW winds 5 to 10 kt. Seas around 2 ft. Wave Detail: E 2 ft at 7 seconds and SE 2 ft at 9 seconds. .THU...SW winds 5 to 10 kt. Seas around 2 ft. Wave Detail: E 2 ft at 7 seconds and W 1 foot at 3 seconds. .THU NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. Wave Detail: SW 3 ft at 4 seconds and W 2 ft at 4 seconds. .FRI AND FRI NIGHT...NE winds 15 to 20 kt. Seas 3 to 4 ft. Wave Detail: NE 4 ft at 4 seconds and W 3 ft at 5 seconds. .SAT AND SAT NIGHT...NE winds 10 to 15 kt with gusts up to 20 kt, becoming SE. Seas 3 to 4 ft. .SUN AND SUN NIGHT...SE winds 10 to 15 kt, becoming E 15 to 20 kt. Seas 4 to 6 ft. A chance of showers. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ For the latest updates...please visit our webpage at www.weather.gov/boston You can follow us on Facebook at www.facebook.com/us.nationalweatherservice.boston.gov You can follow us on Twitter at @NWSBoston