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
597 FZUS51 KBOX 071805 CWFBOX Coastal Waters Forecast for Massachusetts and Rhode Island National Weather Service Boston/Norton MA 104 PM EST Sun Dec 7 2025 Coastal waters from the Merrimack River MA to Watch Hill RI out to 25 NM ANZ200-080700- 104 PM EST Sun Dec 7 2025 .Synopsis for Massachusetts and Rhode Island coastal waters... Weak high-pressure will linger through the start of today. A strong cold front will cross the waters late today into tonight followed by high pres building in from the W on Mon. Low pres will then approach from the W on Tue. The pattern remains active into Thu with multiple disturbances passing over the waters. $$ ANZ250-080700- Coastal waters east of Ipswich Bay and the Stellwagen Bank National Marine Sanctuary- 104 PM EST Sun Dec 7 2025 ...SMALL CRAFT ADVISORY IN EFFECT FROM 1 AM EST MONDAY THROUGH LATE MONDAY NIGHT... .THIS AFTERNOON...W winds around 5 kt. Seas 2 to 4 ft. Wave Detail: SE 4 ft at 9 seconds and N 2 ft at 4 seconds. .TONIGHT...SW winds 15 to 20 kt, becoming W 20 to 25 kt with gusts up to 30 kt after midnight. Seas 3 to 4 ft, building to 4 to 6 ft after midnight. Wave Detail: SE 4 ft at 9 seconds and N 2 ft at 4 seconds, becoming SW 5 ft at 6 seconds and SE 3 ft at 9 seconds. .MON...NW winds 20 to 25 kt with gusts up to 30 kt. Seas 5 to 8 ft. Wave Detail: N 7 ft at 6 seconds and E 2 ft at 8 seconds. .MON NIGHT...NW winds 15 to 20 kt, diminishing to 10 to 15 kt after midnight. Seas 4 to 6 ft. Wave Detail: N 6 ft at 6 seconds and E 1 foot at 9 seconds. .TUE...W winds 5 to 10 kt, becoming SW 15 to 20 kt in the afternoon. Seas 2 to 3 ft. Wave Detail: W 3 ft at 4 seconds and N 2 ft at 6 seconds. .TUE NIGHT...SW winds 20 to 25 kt with gusts up to 30 kt. Seas 3 to 5 ft. Wave Detail: SW 5 ft at 5 seconds and NE 1 foot at 4 seconds. A chance of rain. .WED AND WED NIGHT...SW winds 20 to 25 kt with gusts up to 30 kt. Seas 3 to 4 ft. A chance of rain. .THU AND THU NIGHT...W winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 4 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ251-080700- Massachusetts Bay and Ipswich Bay- 104 PM EST Sun Dec 7 2025 ...SMALL CRAFT ADVISORY IN EFFECT FROM 1 AM EST MONDAY THROUGH MONDAY AFTERNOON... .THIS AFTERNOON...W winds around 5 kt. Seas 2 to 3 ft. Wave Detail: E 2 ft at 10 seconds and N 1 foot at 3 seconds. .TONIGHT...SW winds 10 to 15 kt with gusts up to 20 kt, becoming W 20 to 25 kt with gusts up to 30 kt after midnight. Seas 2 to 4 ft. Wave Detail: W 4 ft at 4 seconds and E 3 ft at 9 seconds. .MON...NW winds 20 to 25 kt, diminishing to 15 to 20 kt in the afternoon. Gusts up to 30 kt. Seas 3 to 5 ft. Wave Detail: N 5 ft at 5 seconds and E 3 ft at 9 seconds. .MON NIGHT...NW winds 10 to 15 kt. Gusts up to 20 kt in the evening. Seas 2 to 4 ft. Wave Detail: N 3 ft at 5 seconds and E 1 foot at 8 seconds. .TUE...W winds 5 to 10 kt, becoming SW 10 to 15 kt with gusts up to 20 kt in the afternoon. Seas around 2 ft. Wave Detail: NW 2 ft at 3 seconds and N 2 ft at 6 seconds. .TUE NIGHT...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 3 ft. Wave Detail: S 3 ft at 4 seconds and NE 1 foot at 4 seconds. A chance of rain. .WED...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 3 ft. Rain likely. .WED NIGHT...SW winds 15 to 20 kt with gusts up to 25 kt. Seas around 3 ft. A chance of rain. .THU...W winds 15 to 20 kt. Seas 2 to 3 ft. .THU NIGHT...W winds 15 to 20 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. $$ ANZ231-080700- Cape Cod Bay- 104 PM EST Sun Dec 7 2025 ...SMALL CRAFT ADVISORY IN EFFECT FROM 1 AM EST MONDAY THROUGH MONDAY AFTERNOON... .THIS AFTERNOON...W winds around 5 kt. Seas around 2 ft. Wave Detail: SE 2 ft at 9 seconds and N 1 foot at 4 seconds. .TONIGHT...SW winds 10 to 15 kt with gusts up to 20 kt, becoming W 20 to 25 kt with gusts up to 30 kt after midnight. Seas 2 to 3 ft. Wave Detail: W 3 ft at 4 seconds and SE 2 ft at 9 seconds. .MON...NW winds 25 to 30 kt, becoming N 20 to 25 kt in the afternoon. Seas 3 to 5 ft. Wave Detail: N 5 ft at 6 seconds and E 2 ft at 9 seconds. .MON NIGHT...NW winds 10 to 15 kt. Gusts up to 20 kt in the evening. Seas 2 to 4 ft. Wave Detail: N 4 ft at 6 seconds and E 1 foot at 8 seconds. .TUE...W winds 5 to 10 kt, becoming SW 10 to 15 kt with gusts up to 20 kt in the afternoon. Seas 2 to 3 ft. Wave Detail: N 3 ft at 6 seconds and E 1 foot at 9 seconds. .TUE NIGHT...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 4 ft. Wave Detail: SW 3 ft at 5 seconds and NE 1 foot at 5 seconds. A chance of rain. .WED AND WED NIGHT...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 4 ft. A chance of rain. .THU AND THU NIGHT...W winds 15 to 20 kt, diminishing to 10 to 15 kt. Gusts up to 25 kt. Seas 2 to 3 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ254-080700- Coastal waters from Provincetown MA to Chatham MA to Nantucket MA out 20 nm- 104 PM EST Sun Dec 7 2025 ...SMALL CRAFT ADVISORY IN EFFECT FROM 1 AM EST MONDAY THROUGH LATE MONDAY NIGHT... .THIS AFTERNOON...W winds around 5 kt. Seas 3 to 4 ft. Wave Detail: SE 4 ft at 9 seconds and N 2 ft at 5 seconds. .TONIGHT...SW winds 10 to 15 kt with gusts up to 20 kt, becoming W 20 to 25 kt with gusts up to 30 kt after midnight. Seas 3 to 4 ft, building to 4 to 6 ft after midnight. Wave Detail: SE 4 ft at 9 seconds and N 2 ft at 5 seconds, becoming W 5 ft at 4 seconds and E 3 ft at 9 seconds. .MON...N winds 20 to 25 kt with gusts up to 30 kt. Seas 5 to 7 ft. Wave Detail: N 7 ft at 6 seconds and SW 2 ft at 7 seconds. .MON NIGHT...N winds 15 to 20 kt with gusts up to 25 kt, diminishing to 10 to 15 kt after midnight. Seas 5 to 7 ft, subsiding to 3 to 5 ft after midnight. Wave Detail: N 6 ft at 7 seconds and E 2 ft at 9 seconds, becoming N 5 ft at 7 seconds and E 1 foot at 9 seconds. .TUE...NW winds 5 to 10 kt, becoming SW 10 to 15 kt with gusts up to 20 kt in the afternoon. Seas 2 to 4 ft. Wave Detail: N 3 ft at 7 seconds and E 1 foot at 9 seconds. .TUE NIGHT...SW winds 15 to 20 kt, increasing to 20 to 25 kt after midnight. Seas 4 to 6 ft. Wave Detail: SW 5 ft at 6 seconds and NE 2 ft at 6 seconds. A chance of rain. .WED...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 4 to 6 ft, except 7 to 10 ft S and E of Nantucket. A chance of rain. .WED NIGHT...SW winds 20 to 25 kt with gusts up to 30 kt. Seas 5 to 7 ft, except 8 to 11 ft S and E of Nantucket. A chance of rain. .THU...W winds 20 to 25 kt. Seas 5 to 7 ft. .THU NIGHT...W winds 15 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. $$ ANZ255-080700- Coastal Waters extending out to 25 nm South of Marthas Vineyard and Nantucket- 104 PM EST Sun Dec 7 2025 ...SMALL CRAFT ADVISORY IN EFFECT FROM 1 AM EST MONDAY THROUGH LATE MONDAY NIGHT... .THIS AFTERNOON...W winds 5 to 10 kt. Seas 3 to 4 ft. Wave Detail: SE 3 ft at 8 seconds and S 2 ft at 8 seconds. .TONIGHT...SW winds 15 to 20 kt, becoming NW 25 to 30 kt after midnight. Seas 2 to 4 ft, building to 5 to 7 ft after midnight. Wave Detail: W 3 ft at 4 seconds and SE 3 ft at 9 seconds, becoming SW 6 ft at 7 seconds and E 3 ft at 9 seconds. .MON...NW winds 25 to 30 kt, becoming N 20 to 25 kt in the afternoon. Seas 5 to 7 ft. Wave Detail: N 7 ft at 6 seconds and SW 3 ft at 7 seconds. .MON NIGHT...N winds 15 to 20 kt, diminishing to 10 to 15 kt after midnight. Gusts up to 25 kt. Seas 4 to 6 ft. Wave Detail: N 4 ft at 5 seconds and W 1 foot at 7 seconds. .TUE...N winds 5 to 10 kt, becoming SW 10 to 15 kt with gusts up to 20 kt in the afternoon. Seas 2 to 3 ft. Wave Detail: N 2 ft at 5 seconds and E 1 foot at 9 seconds. .TUE NIGHT...SW winds 25 to 30 kt. Seas 5 to 7 ft, building to 7 to 10 ft after midnight. Wave Detail: SW 7 ft at 6 seconds and NE 1 foot at 6 seconds, becoming SW 10 ft at 8 seconds and W 1 foot at 5 seconds. A chance of rain. .WED...SW winds 25 to 30 kt. Seas 7 to 10 ft. A chance of rain. .WED NIGHT...SW winds 25 to 30 kt with gusts up to 35 kt. Seas 9 to 13 ft. A chance of rain. .THU...W winds 25 to 30 kt. Seas 7 to 10 ft. .THU NIGHT...W winds 15 to 20 kt with gusts up to 25 kt. Seas 5 to 7 ft. A chance of rain. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ256-080700- Coastal Waters from Montauk NY to Marthas Vineyard extending out to 20 nm South of Block Island- 104 PM EST Sun Dec 7 2025 ...SMALL CRAFT ADVISORY IN EFFECT FROM 1 AM EST MONDAY THROUGH LATE MONDAY NIGHT... .THIS AFTERNOON...W winds 5 to 10 kt. Seas around 3 ft. Wave Detail: SE 3 ft at 9 seconds and S 2 ft at 8 seconds. .TONIGHT...W winds 15 to 20 kt, becoming NW 20 to 25 kt after midnight. Gusts up to 30 kt. Seas 3 to 5 ft, building to 5 to 7 ft after midnight. Wave Detail: SW 4 ft at 4 seconds and SE 3 ft at 9 seconds, becoming SW 5 ft at 6 seconds and E 3 ft at 9 seconds. .MON...N winds 25 to 30 kt, diminishing to 20 to 25 kt in the afternoon. Seas 5 to 7 ft. Wave Detail: N 6 ft at 5 seconds and SW 3 ft at 7 seconds. .MON 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. Wave Detail: N 4 ft at 5 seconds and E 2 ft at 8 seconds. .TUE...NE 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: SW 3 ft at 3 seconds and NE 2 ft at 4 seconds. .TUE NIGHT...SW winds 25 to 30 kt. Seas 5 to 7 ft, building to 7 to 10 ft after midnight. Wave Detail: SW 7 ft at 6 seconds and E 1 foot at 5 seconds, becoming SW 9 ft at 8 seconds and W 1 foot at 5 seconds. A chance of rain in the evening. .WED...SW winds 25 to 30 kt with gusts up to 35 kt. Seas 7 to 10 ft. A chance of rain. .WED NIGHT...SW winds 25 to 30 kt with gusts up to 35 kt. Seas 9 to 13 ft. A chance of rain. .THU...W winds 25 to 30 kt. Seas 7 to 10 ft. .THU NIGHT...W winds 15 to 20 kt with gusts up to 25 kt. Seas 5 to 7 ft. A chance of rain. 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. $$ ANZ232-080700- Nantucket Sound- 104 PM EST Sun Dec 7 2025 ...SMALL CRAFT ADVISORY IN EFFECT FROM 1 AM EST MONDAY THROUGH MONDAY AFTERNOON... .THIS AFTERNOON...W winds around 5 kt. Seas around 2 ft. Wave Detail: NW 1 foot at 3 seconds and NE 1 foot at 4 seconds. .TONIGHT...SW winds 10 to 15 kt, becoming W 20 to 25 kt after midnight. Seas 2 to 4 ft. Wave Detail: W 4 ft at 4 seconds and S 2 ft at 7 seconds. .MON...N winds 20 to 25 kt with gusts up to 30 kt. Seas 3 to 5 ft. Wave Detail: N 4 ft at 5 seconds and SW 2 ft at 7 seconds. .MON NIGHT...N winds 15 to 20 kt, diminishing to 10 to 15 kt after midnight. Seas 2 to 4 ft. Wave Detail: N 3 ft at 5 seconds and E 1 foot at 8 seconds. .TUE...NW winds 5 to 10 kt, becoming SW 10 to 15 kt in the afternoon. Seas around 2 ft. Wave Detail: SW 2 ft at 3 seconds and NE 1 foot at 5 seconds. .TUE NIGHT...SW winds 20 to 25 kt. Seas 4 to 6 ft. Wave Detail: SW 4 ft at 5 seconds and NE 1 foot at 5 seconds. A chance of rain. .WED AND WED NIGHT...SW winds 20 to 25 kt with gusts up to 30 kt. Seas 4 to 6 ft. A chance of rain. .THU...W winds 20 to 25 kt. Seas 4 to 6 ft. .THU NIGHT...W winds 15 to 20 kt. Seas 2 to 4 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ233-080700- Vineyard Sound- 104 PM EST Sun Dec 7 2025 ...SMALL CRAFT ADVISORY IN EFFECT FROM 1 AM EST MONDAY THROUGH MONDAY AFTERNOON... .THIS AFTERNOON...SW winds 5 to 10 kt. Seas around 2 ft. Wave Detail: W 1 foot at 4 seconds and S 1 foot at 8 seconds. .TONIGHT...W winds 15 to 20 kt, becoming NW 20 to 25 kt after midnight. Seas 2 to 4 ft. Wave Detail: SW 3 ft at 6 seconds and SE 1 foot at 9 seconds. .MON...N winds 20 to 25 kt, diminishing to 15 to 20 kt in the afternoon. Seas 2 to 4 ft. Wave Detail: N 4 ft at 5 seconds and SW 2 ft at 7 seconds. .MON NIGHT...N winds 10 to 15 kt. Gusts up to 20 kt in the evening. Seas 2 to 3 ft. Wave Detail: N 2 ft at 4 seconds and SE 1 foot at 8 seconds. .TUE...NW winds 5 to 10 kt, becoming SW 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: N 1 foot at 3 seconds and E 1 foot at 9 seconds, becoming SW 2 ft at 3 seconds and NE 1 foot at 5 seconds. .TUE NIGHT...SW winds 25 to 30 kt, diminishing to 20 to 25 kt after midnight. Seas 3 to 5 ft, building to 5 to 7 ft after midnight. Wave Detail: SW 5 ft at 6 seconds and NE 1 foot at 5 seconds, becoming SW 6 ft at 7 seconds and W 2 ft at 4 seconds. A chance of rain. .WED...SW winds 25 to 30 kt. Seas 5 to 7 ft. A chance of rain. .WED NIGHT...SW winds 25 to 30 kt. Seas 6 to 9 ft. A chance of rain. .THU...W winds 20 to 25 kt. Seas 4 to 6 ft. .THU NIGHT...W winds 15 to 20 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. $$ ANZ234-080700- Buzzards Bay- 104 PM EST Sun Dec 7 2025 ...SMALL CRAFT ADVISORY IN EFFECT FROM 1 AM EST MONDAY THROUGH MONDAY AFTERNOON... .THIS AFTERNOON...SW winds 5 to 10 kt. Seas around 2 ft. Wave Detail: SE 2 ft at 8 seconds and NE 1 foot at 4 seconds. .TONIGHT...W winds 10 to 15 kt, becoming NW 20 to 25 kt after midnight. Seas 2 to 3 ft. Wave Detail: W 3 ft at 4 seconds and SW 2 ft at 7 seconds. .MON...NW winds 20 to 25 kt, becoming N 15 to 20 kt in the afternoon. Seas 2 to 3 ft. Wave Detail: N 3 ft at 5 seconds and SW 2 ft at 6 seconds. .MON NIGHT...N winds 10 to 15 kt. Gusts up to 20 kt in the evening. Seas around 2 ft. Wave Detail: N 2 ft at 4 seconds and E 1 foot at 8 seconds. .TUE...NW winds 5 to 10 kt, becoming SW 10 to 15 kt with gusts up to 20 kt in the afternoon. Seas 1 foot or less, then around 2 ft in the afternoon. Wave Detail: N 1 foot at 3 seconds and E 1 foot at 9 seconds, becoming SW 2 ft at 3 seconds and NE 1 foot at 5 seconds. .TUE NIGHT...SW winds 20 to 25 kt with gusts up to 30 kt. Seas 3 to 5 ft. Wave Detail: SW 5 ft at 6 seconds and NE 1 foot at 5 seconds. A chance of rain. .WED...SW winds 20 to 25 kt with gusts up to 30 kt. Seas 3 to 5 ft. A chance of rain. .WED NIGHT...SW winds 25 to 30 kt. Seas 4 to 6 ft. A chance of rain. .THU...W winds 20 to 25 kt. Seas 3 to 5 ft. .THU NIGHT...W winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ235-080700- Rhode Island Sound- 104 PM EST Sun Dec 7 2025 ...SMALL CRAFT ADVISORY IN EFFECT FROM 1 AM EST MONDAY THROUGH MONDAY AFTERNOON... .THIS AFTERNOON...SW winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: S 2 ft at 8 seconds and SE 2 ft at 8 seconds. .TONIGHT...W winds 15 to 20 kt, becoming NW 20 to 25 kt after midnight. Seas 3 to 5 ft. Wave Detail: SW 4 ft at 6 seconds and SE 2 ft at 8 seconds. .MON...N winds 20 to 25 kt, diminishing to 15 to 20 kt in the afternoon. Seas 3 to 5 ft. Wave Detail: N 4 ft at 5 seconds and SW 2 ft at 6 seconds. .MON NIGHT...N winds 10 to 15 kt. Gusts up to 20 kt in the evening. Seas 2 to 3 ft. Wave Detail: N 2 ft at 4 seconds and SE 1 foot at 8 seconds. .TUE...NW winds 5 to 10 kt, becoming SW 10 to 15 kt with gusts up to 20 kt in the afternoon. Seas 2 to 3 ft. Wave Detail: SW 3 ft at 4 seconds and NE 1 foot at 3 seconds. .TUE NIGHT...SW winds 25 to 30 kt. Seas 4 to 6 ft, building to 5 to 8 ft after midnight. Wave Detail: SW 6 ft at 6 seconds and NE 1 foot at 4 seconds, becoming SW 8 ft at 6 seconds and SE 1 foot at 9 seconds. A chance of rain in the evening. .WED...SW winds 25 to 30 kt with gusts up to 35 kt. Seas 5 to 8 ft. A chance of rain. .WED NIGHT...SW winds 25 to 30 kt. Seas 7 to 10 ft. A chance of rain. .THU...W winds 20 to 25 kt with gusts up to 30 kt. Seas 5 to 7 ft. .THU NIGHT...W winds 15 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. $$ ANZ237-080700- Block Island Sound- 104 PM EST Sun Dec 7 2025 ...SMALL CRAFT ADVISORY IN EFFECT FROM 1 AM EST MONDAY THROUGH MONDAY AFTERNOON... .THIS AFTERNOON...SW winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: S 2 ft at 8 seconds and SE 2 ft at 9 seconds. .TONIGHT...W winds 10 to 15 kt, becoming NW 15 to 20 kt after midnight. Gusts up to 25 kt. Seas 3 to 5 ft. Wave Detail: W 4 ft at 4 seconds and SE 3 ft at 8 seconds. .MON...N winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to 5 ft. Wave Detail: N 4 ft at 4 seconds and SW 2 ft at 6 seconds. .MON NIGHT...N winds 10 to 15 kt with gusts up to 20 kt, diminishing to 5 to 10 kt after midnight. Seas 2 to 3 ft. Wave Detail: N 2 ft at 4 seconds and SE 1 foot at 8 seconds. .TUE...E winds around 5 kt, becoming SW 10 to 15 kt with gusts up to 20 kt in the afternoon. Seas 2 to 3 ft. Wave Detail: SW 2 ft at 3 seconds and NE 1 foot at 4 seconds. .TUE NIGHT...SW winds 20 to 25 kt with gusts up to 30 kt. Seas 4 to 6 ft. Wave Detail: SW 5 ft at 5 seconds and SE 1 foot at 9 seconds. A chance of rain in the evening. .WED...SW winds 20 to 25 kt with gusts up to 35 kt. Seas 5 to 7 ft. A chance of rain. .WED NIGHT...SW winds 25 to 30 kt. Seas 6 to 9 ft. A chance of rain. .THU...W winds 15 to 20 kt with gusts up to 25 kt. Seas 4 to 6 ft. .THU NIGHT...W winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 5 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ230-080700- Boston Harbor- 104 PM EST Sun Dec 7 2025 .THIS AFTERNOON...SW winds around 5 kt. Waves 1 foot or less. .TONIGHT...SW winds 10 to 15 kt, becoming W 20 to 25 kt after midnight. Waves around 2 ft. .MON...NW winds 20 to 25 kt, diminishing to 15 to 20 kt in the afternoon. Waves around 2 ft. .MON NIGHT...NW 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. .TUE...W winds 5 to 10 kt, becoming SW 10 to 15 kt in the afternoon. Waves 1 foot or less, then around 2 ft in the afternoon. .TUE NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Waves around 2 ft. A chance of rain. A chance of snow in the evening. .WED...SW winds 15 to 20 kt with gusts up to 25 kt. Waves around 2 ft. Rain likely. .WED NIGHT...SW winds 15 to 20 kt with gusts up to 25 kt. Waves around 2 ft. A chance of rain. .THU...W winds 15 to 20 kt. Waves around 2 ft. .THU NIGHT...W winds 10 to 15 kt with gusts up to 20 kt. Waves 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. $$ ANZ236-080700- Narragansett Bay- 104 PM EST Sun Dec 7 2025 .THIS AFTERNOON...SW winds around 5 kt. Waves around 2 ft. .TONIGHT...W winds 10 to 15 kt, becoming NW 15 to 20 kt with gusts up to 25 kt after midnight. Waves 2 to 3 ft. .MON...N winds 15 to 20 kt, diminishing to 10 to 15 kt in the afternoon. Gusts up to 25 kt. Waves 2 to 3 ft. .MON NIGHT...N winds 10 to 15 kt, diminishing to 5 to 10 kt after midnight. Waves around 2 ft. .TUE...W winds around 5 kt, becoming SW 10 to 15 kt with gusts up to 20 kt in the afternoon. Waves 1 foot or less, then around 2 ft in the afternoon. .TUE NIGHT...SW winds 15 to 20 kt with gusts up to 25 kt. Waves 2 to 4 ft. A chance of rain in the evening. .WED...SW winds 20 to 25 kt with gusts up to 30 kt. Waves 2 to 4 ft. A chance of rain. .WED NIGHT...SW winds 20 to 25 kt with gusts up to 30 kt. Waves 3 to 5 ft. A chance of rain. .THU...W winds 15 to 20 kt with gusts up to 25 kt. Waves 3 to 5 ft. .THU NIGHT...W winds 10 to 15 kt with gusts up to 20 kt. Waves 2 to 3 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ 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