FZUS51 KBOX 161103
CWFBOX
Coastal Waters Forecast for Massachusetts and Rhode Island
National Weather Service Boston/Norton MA
702 AM EDT Sat May 16 2026
Coastal waters from the Merrimack River MA to Watch Hill RI out
to 60 NM
ANZ200-170000-
702 AM EDT Sat May 16 2026
.Synopsis for Massachusetts and Rhode Island coastal waters...
A Bermuda high develops over the weekend into early next week,
providing tranquil boating weather across the MA and RI waters. Next
trough of low pressure may arrive around Wednesday.
$$
ANZ250-170000-
Coastal waters east of Ipswich Bay and the Stellwagen Bank
National Marine Sanctuary-
702 AM EDT Sat May 16 2026
...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT...
.TODAY...SW winds around 10 kt, becoming S 15 to 20 kt with gusts
up to 25 kt this afternoon. Seas 4 to 5 ft. Wave Detail: E 5 ft
at 10 seconds and SW 3 ft at 4 seconds.
.TONIGHT...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to
5 ft. Wave Detail: S 4 ft at 5 seconds and E 4 ft at 9 seconds.
.SUN...SW winds 10 to 15 kt. Gusts up to 20 kt in the morning.
Seas 2 to 4 ft. Wave Detail: SW 4 ft at 5 seconds and SE 3 ft at
9 seconds.
.SUN NIGHT...NW winds 5 to 10 kt, becoming NE after midnight.
Seas 2 to 3 ft. Wave Detail: SE 2 ft at 8 seconds and W 1 foot at
3 seconds.
.MON...E winds around 5 kt, becoming SE 10 to 15 kt with gusts up
to 20 kt in the afternoon. Seas 2 to 3 ft. Wave Detail: S 2 ft at
3 seconds and SE 2 ft at 8 seconds.
.MON NIGHT...S winds 10 to 15 kt with gusts up to 20 kt. Seas
2 to 3 ft. Wave Detail: S 3 ft at 4 seconds and SE 2 ft at
8 seconds.
.TUE AND TUE NIGHT...SW winds 15 to 20 kt with gusts up to 25 kt.
Seas 2 to 4 ft.
.WED AND WED NIGHT...SW winds 15 to 20 kt, diminishing to 10 to
15 kt. Gusts up to 25 kt. Seas 2 to 4 ft. A chance of showers.
Seas are reported as significant wave height, which is the
average of the highest third of the waves. Individual wave
heights may be more than twice the significant wave height.
$$
ANZ251-170000-
Massachusetts Bay and Ipswich Bay-
702 AM EDT Sat May 16 2026
...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT...
.TODAY...SW winds 10 to 15 kt. Gusts up to 20 kt this afternoon.
Seas 2 to 4 ft. Wave Detail: E 4 ft at 10 seconds and NW 3 ft at
5 seconds.
.TONIGHT...S winds 15 to 20 kt, becoming SW 10 to 15 kt after
midnight. Seas 2 to 4 ft. Wave Detail: S 3 ft at 4 seconds and E
3 ft at 10 seconds.
.SUN...W winds 10 to 15 kt, diminishing to 5 to 10 kt in the
afternoon. Seas 2 to 3 ft. Wave Detail: SW 2 ft at 4 seconds and
E 2 ft at 9 seconds.
.SUN NIGHT...NW winds 5 to 10 kt, becoming N after midnight. Seas
around 2 ft. Wave Detail: W 1 foot at 3 seconds and E 1 foot at
8 seconds.
.MON...E winds around 5 kt, becoming SE 10 to 15 kt with gusts up
to 20 kt in the afternoon. Seas around 2 ft. Wave Detail: SE 2 ft
at 3 seconds and E 1 foot at 7 seconds.
.MON NIGHT...S winds 10 to 15 kt. Gusts up to 20 kt in the
evening. Seas around 2 ft. Wave Detail: SE 2 ft at 4 seconds and
E 1 foot at 8 seconds.
.TUE AND TUE NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt.
Seas 2 to 3 ft.
.WED AND WED NIGHT...SW 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.
$$
ANZ231-170000-
Cape Cod Bay-
702 AM EDT Sat May 16 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM NOON EDT TODAY THROUGH
THIS EVENING...
.TODAY...SW winds 5 to 10 kt, increasing to 10 to 15 kt with
gusts up to 25 kt this afternoon. Seas 2 to 4 ft. Wave Detail: SW
2 ft at 3 seconds and NE 1 foot at 8 seconds.
.TONIGHT...SW winds around 15 kt with gusts up to 25 kt. Seas
2 to 4 ft. Wave Detail: SW 2 ft at 3 seconds and E 1 foot at
8 seconds.
.SUN...SW winds 10 to 15 kt with gusts up to 20 kt, diminishing
to 5 to 10 kt in the afternoon. Seas around 2 ft. Wave Detail: SW
2 ft at 3 seconds and E 1 foot at 9 seconds.
.SUN NIGHT...W winds 5 to 10 kt, becoming N after midnight. Seas
around 2 ft in the evening, then 1 foot or less. Wave Detail: W
1 foot at 3 seconds and SE 1 foot at 9 seconds, becoming NW
1 foot at 3 seconds and E 1 foot at 8 seconds.
.MON...E winds around 5 kt, becoming SE in the afternoon. Seas
1 foot or less, then around 2 ft in the afternoon. Wave Detail: E
1 foot at 3 seconds and NW 1 foot at 3 seconds, becoming E 1 foot
at 4 seconds.
.MON NIGHT...S winds 10 to 15 kt. Gusts up to 20 kt after
midnight. Seas around 2 ft. Wave Detail: S 1 foot at 2 seconds
and NE 1 foot at 4 seconds.
.TUE THROUGH WED...SW winds 15 to 20 kt with gusts up to 25 kt.
Seas 2 to 4 ft.
.WED NIGHT...SW winds 10 to 15 kt with gusts up to 25 kt. Seas
2 to 4 ft. A chance of showers.
Seas are reported as significant wave height, which is the
average of the highest third of the waves. Individual wave
heights may be more than twice the significant wave height.
$$
ANZ254-170000-
Coastal waters from Provincetown MA to Chatham MA to Nantucket MA
out 20 NM-
702 AM EDT Sat May 16 2026
...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT...
.TODAY...SW winds 10 to 15 kt. Gusts up to 25 kt this afternoon.
Seas 4 to 5 ft. Wave Detail: E 5 ft at 10 seconds and SW 3 ft at
4 seconds. Patchy fog this morning with vsby 1 NM or less.
.TONIGHT...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 4 to
6 ft. Wave Detail: SW 5 ft at 6 seconds and E 4 ft at 9 seconds.
.SUN...SW winds 15 to 20 kt, diminishing to 10 to 15 kt in the
afternoon. Gusts up to 25 kt. Seas 4 to 6 ft. Wave Detail: SW
5 ft at 6 seconds and SE 3 ft at 9 seconds.
.SUN NIGHT...W winds 10 to 15 kt, becoming N 5 to 10 kt after
midnight. Seas 2 to 4 ft. Wave Detail: W 3 ft at 5 seconds and SE
3 ft at 8 seconds.
.MON...E winds 5 to 10 kt, becoming SE in the afternoon. Seas
2 to 3 ft. Wave Detail: W 2 ft at 5 seconds and E 2 ft at
8 seconds.
.MON NIGHT...S winds 10 to 15 kt. Gusts up to 20 kt after
midnight. Seas 2 to 3 ft. Wave Detail: S 2 ft at 4 seconds and SE
2 ft at 7 seconds.
.TUE...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to
4 ft.
.TUE NIGHT AND WED...SW winds 15 to 20 kt with gusts up to 25 kt.
Seas 3 to 5 ft.
.WED 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.
$$
ANZ255-170000-
Coastal Waters extending out to 25 NM South of Marthas Vineyard
and Nantucket-
702 AM EDT Sat May 16 2026
...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT...
.TODAY...SW winds 5 to 10 kt, increasing to 10 to 15 kt with
gusts up to 20 kt this afternoon. Seas 3 to 5 ft. Wave Detail: SE
5 ft at 10 seconds and SW 3 ft at 5 seconds.
.TONIGHT...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 4 to
6 ft. Wave Detail: SW 6 ft at 6 seconds and SE 4 ft at 9 seconds.
.SUN...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 4 to
6 ft. Wave Detail: SW 6 ft at 7 seconds and SE 3 ft at 9 seconds.
.SUN NIGHT...W winds 10 to 15 kt with gusts up to 20 kt, becoming
N after midnight. Seas 3 to 5 ft. Wave Detail: SW 4 ft at
7 seconds and SE 2 ft at 8 seconds.
.MON...E winds around 10 kt, becoming SE in the afternoon. Seas
2 to 4 ft. Wave Detail: SW 3 ft at 7 seconds and SE 2 ft at
9 seconds.
.MON NIGHT...S winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: S
3 ft at 7 seconds.
.TUE...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to
5 ft.
.TUE NIGHT AND WED...SW winds 15 to 20 kt with gusts up to 25 kt.
Seas 4 to 6 ft.
.WED NIGHT...SW winds 15 to 20 kt with gusts up to 25 kt. Seas
4 to 6 ft. A chance of showers.
Seas are reported as significant wave height, which is the
average of the highest third of the waves. Individual wave
heights may be more than twice the significant wave height.
$$
ANZ256-170000-
Coastal Waters from Montauk NY to Marthas Vineyard extending out
to 20 NM South of Block Island-
702 AM EDT Sat May 16 2026
...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT...
.TODAY...SW winds 5 to 10 kt, increasing to 10 to 15 kt with
gusts up to 20 kt this afternoon. Seas 4 to 5 ft. Wave Detail: SE
5 ft at 10 seconds and SW 3 ft at 6 seconds.
.TONIGHT...SW winds 15 to 20 kt, increasing to 20 to 25 kt after
midnight. Gusts up to 30 kt. Seas 4 to 6 ft. Wave Detail: SW 6 ft
at 6 seconds and SE 4 ft at 9 seconds.
.SUN...SW winds 15 to 20 kt, diminishing to 10 to 15 kt in the
afternoon. Gusts up to 25 kt. Seas 5 to 6 ft. Wave Detail: SW
6 ft at 7 seconds and SE 2 ft at 9 seconds.
.SUN NIGHT...W winds 10 to 15 kt with gusts up to 20 kt, becoming
N 5 to 10 kt after midnight. Seas 3 to 5 ft. Wave Detail: SW 4 ft
at 7 seconds and SE 2 ft at 8 seconds.
.MON...E winds around 10 kt, becoming SE in the afternoon. Seas
3 to 4 ft. Wave Detail: S 3 ft at 7 seconds and SE 2 ft at
8 seconds.
.MON NIGHT...S winds 10 to 15 kt. Seas around 3 ft. Wave Detail:
S 3 ft at 7 seconds and SE 2 ft at 8 seconds.
.TUE...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to
5 ft.
.TUE NIGHT AND WED...SW winds 15 to 20 kt with gusts up to 25 kt.
Seas 4 to 6 ft.
.WED 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.
$$
ANZ232-170000-
Nantucket Sound-
702 AM EDT Sat May 16 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM NOON EDT TODAY THROUGH
THIS EVENING...
.TODAY...SW winds 10 to 15 kt. Gusts up to 20 kt this afternoon.
Seas 2 to 3 ft. Wave Detail: SW 3 ft at 4 seconds and E 3 ft at
7 seconds.
.TONIGHT...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to
4 ft. Wave Detail: SW 3 ft at 4 seconds and SE 2 ft at 8 seconds.
.SUN...SW winds 15 to 20 kt, diminishing to 10 to 15 kt in the
afternoon. Seas 2 to 4 ft. Wave Detail: SW 3 ft at 4 seconds and
E 1 foot at 9 seconds.
.SUN NIGHT...W winds 10 to 15 kt with gusts up to 20 kt, becoming
N 5 to 10 kt after midnight. Seas 2 to 3 ft. Wave Detail: W 2 ft
at 4 seconds and SE 1 foot at 9 seconds.
.MON...E winds 5 to 10 kt, becoming SE in the afternoon. Seas
around 2 ft. Wave Detail: NE 1 foot at 5 seconds and SW 1 foot at
5 seconds.
.MON NIGHT...S winds 10 to 15 kt. Seas around 2 ft. Wave Detail:
SW 2 ft at 3 seconds and E 1 foot at 7 seconds.
.TUE THROUGH WED...SW winds 15 to 20 kt with gusts up to 25 kt.
Seas 2 to 4 ft.
.WED NIGHT...SW winds 15 to 20 kt with gusts up to 25 kt. Seas
2 to 3 ft. A chance of showers.
Seas are reported as significant wave height, which is the
average of the highest third of the waves. Individual wave
heights may be more than twice the significant wave height.
$$
ANZ233-170000-
Vineyard Sound-
702 AM EDT Sat May 16 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM NOON EDT TODAY THROUGH
THIS EVENING...
.TODAY...SW winds 10 to 15 kt, increasing to 15 to 20 kt this
afternoon. Seas 2 to 3 ft. Wave Detail: SW 3 ft at 4 seconds and
S 2 ft at 9 seconds.
.TONIGHT...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to
4 ft. Wave Detail: SW 4 ft at 6 seconds and E 2 ft at 9 seconds.
.SUN...SW winds 15 to 20 kt, diminishing to 10 to 15 kt in the
afternoon. Seas 2 to 4 ft. Wave Detail: SW 4 ft at 7 seconds and
E 1 foot at 9 seconds.
.SUN NIGHT...W winds 10 to 15 kt with gusts up to 20 kt, becoming
N 5 to 10 kt after midnight. Seas 2 to 4 ft. Wave Detail: SW 3 ft
at 7 seconds and SE 2 ft at 13 seconds.
.MON...E winds 5 to 10 kt, becoming SE in the afternoon. Seas
around 2 ft. Wave Detail: SW 2 ft at 7 seconds and E 1 foot at
5 seconds.
.MON NIGHT...S winds 10 to 15 kt. Seas around 2 ft. Wave Detail:
S 2 ft at 7 seconds and SE 1 foot at 8 seconds.
.TUE THROUGH WED...SW winds 15 to 20 kt with gusts up to 25 kt.
Seas 2 to 4 ft.
.WED 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.
$$
ANZ234-170000-
Buzzards Bay-
702 AM EDT Sat May 16 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM NOON EDT TODAY THROUGH
THIS EVENING...
.TODAY...SW winds 10 to 15 kt, increasing to 15 to 20 kt this
afternoon. Gusts up to 25 kt. Seas 2 to 4 ft. Wave Detail: SW
3 ft at 4 seconds and S 1 foot at 10 seconds.
.TONIGHT...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to
4 ft. Wave Detail: SW 3 ft at 5 seconds and SE 2 ft at 8 seconds.
.SUN...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to
3 ft. Wave Detail: SW 3 ft at 6 seconds and SE 2 ft at
10 seconds.
.SUN NIGHT...W winds 10 to 15 kt with gusts up to 20 kt, becoming
N around 5 kt after midnight. Seas 2 to 3 ft. Wave Detail: SW
2 ft at 6 seconds and SE 2 ft at 11 seconds.
.MON...E winds 5 to 10 kt, becoming SE in the afternoon. Seas
around 2 ft. Wave Detail: E 1 foot at 3 seconds and SW 1 foot at
7 seconds.
.MON NIGHT...S winds 5 to 10 kt. Seas around 2 ft. Wave Detail:
SE 1 foot at 7 seconds.
.TUE THROUGH WED...SW winds 15 to 20 kt with gusts up to 25 kt.
Seas 2 to 4 ft.
.WED NIGHT...SW winds 15 to 20 kt with gusts up to 25 kt. Seas
2 to 4 ft. A chance of showers.
Seas are reported as significant wave height, which is the
average of the highest third of the waves. Individual wave
heights may be more than twice the significant wave height.
$$
ANZ235-170000-
Rhode Island Sound-
702 AM EDT Sat May 16 2026
...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT...
.TODAY...SW winds 10 to 15 kt, increasing to 15 to 20 kt this
afternoon. Seas 3 to 4 ft. Wave Detail: SW 4 ft at 4 seconds and
SE 4 ft at 10 seconds.
.TONIGHT...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to
5 ft. Wave Detail: SW 5 ft at 6 seconds and SE 3 ft at 9 seconds.
.SUN...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to
5 ft. Wave Detail: SW 5 ft at 7 seconds and SE 3 ft at 9 seconds.
.SUN NIGHT...W winds 10 to 15 kt with gusts up to 20 kt, becoming
N 5 to 10 kt after midnight. Seas 3 to 5 ft. Wave Detail: SW 4 ft
at 7 seconds and SE 3 ft at 11 seconds.
.MON...E winds 5 to 10 kt, becoming SE in the afternoon. Seas
2 to 3 ft. Wave Detail: S 3 ft at 7 seconds and SE 2 ft at
8 seconds.
.MON NIGHT...S winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: S
2 ft at 7 seconds and SE 2 ft at 8 seconds.
.TUE...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to
4 ft.
.TUE NIGHT AND WED...SW winds 15 to 20 kt with gusts up to 25 kt.
Seas 3 to 5 ft.
.WED 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.
$$
ANZ237-170000-
Block Island Sound-
702 AM EDT Sat May 16 2026
...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT...
.TODAY...SW winds 5 to 10 kt, increasing to 10 to 15 kt with
gusts up to 20 kt this afternoon. Seas 3 to 4 ft. Wave Detail: SE
4 ft at 10 seconds and SW 3 ft at 8 seconds.
.TONIGHT...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to
5 ft. Wave Detail: SW 4 ft at 5 seconds and SE 3 ft at 9 seconds.
.SUN...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to
4 ft. Wave Detail: SW 4 ft at 7 seconds and SE 2 ft at 9 seconds.
.SUN NIGHT...W winds 10 to 15 kt, becoming N 5 to 10 kt after
midnight. Seas 2 to 4 ft. Wave Detail: SW 3 ft at 7 seconds and
SE 2 ft at 8 seconds.
.MON...E winds 5 to 10 kt, becoming SE in the afternoon. Seas
2 to 3 ft. Wave Detail: S 3 ft at 7 seconds and SE 2 ft at
8 seconds.
.MON NIGHT...S winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: S
2 ft at 7 seconds and SE 2 ft at 8 seconds.
.TUE THROUGH WED...SW winds 15 to 20 kt with gusts up to 25 kt.
Seas 2 to 4 ft.
.WED NIGHT...SW winds 15 to 20 kt with gusts up to 25 kt. Seas
3 to 4 ft. A chance of showers.
Seas are reported as significant wave height, which is the
average of the highest third of the waves. Individual wave
heights may be more than twice the significant wave height.
$$
ANZ230-170000-
Boston Harbor-
702 AM EDT Sat May 16 2026
.TODAY...SW winds 10 to 15 kt. Gusts up to 20 kt this afternoon.
Waves 1 foot or less, then around 2 ft this afternoon.
.TONIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Waves
around 2 ft.
.SUN...W winds 10 to 15 kt. Gusts up to 20 kt in the afternoon.
Waves around 2 ft.
.SUN NIGHT...NW winds 5 to 10 kt, becoming NE after midnight.
Waves around 2 ft in the evening, then 1 foot or less.
.MON...E winds 5 to 10 kt, becoming SE 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.
.MON NIGHT...S winds 10 to 15 kt. Waves around 2 ft.
.TUE AND TUE NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt.
Waves around 2 ft.
.WED AND WED 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.
$$
ANZ236-170000-
Narragansett Bay-
702 AM EDT Sat May 16 2026
.TODAY...SW winds 5 to 10 kt, increasing to 10 to 15 kt with
gusts up to 20 kt this afternoon. Waves 2 to 3 ft.
.TONIGHT...SW winds 10 to 15 kt with gusts up to 25 kt. Waves
2 to 3 ft.
.SUN...SW winds 5 to 10 kt, becoming W 10 to 15 kt in the
afternoon. Waves 2 to 3 ft.
.SUN NIGHT...W winds 5 to 10 kt, becoming N after midnight. Waves
2 to 3 ft.
.MON...E winds 5 to 10 kt, becoming S in the afternoon. Waves
around 2 ft.
.MON NIGHT...S winds 5 to 10 kt. Waves around 2 ft.
.TUE THROUGH WED...SW winds 10 to 15 kt with gusts up to 25 kt.
Waves 2 to 3 ft.
.WED NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Waves
2 to 3 ft. A chance of showers.
Seas are reported as significant wave height, which is the
average of the highest third of the waves. Individual wave
heights may be more than twice the significant wave height.
$$
ANZ280-170000-
Ocean Waters from the Merrimack River to Plymouth from 40 to
60 NM-
702 AM EDT Sat May 16 2026
.TODAY...SW winds 10 to 15 kt, increasing to 15 to 20 kt this
afternoon. Gusts up to 25 kt. Seas 5 to 6 ft. Wave Detail: E 5 ft
at 10 seconds and SW 3 ft at 4 seconds.
.TONIGHT...SW winds 15 to 20 kt with gusts up to 30 kt. Seas 5 to
6 ft. Wave Detail: S 5 ft at 6 seconds and E 4 ft at 9 seconds.
.SUN...SW winds 15 to 20 kt, diminishing to 10 to 15 kt in the
afternoon. Gusts up to 25 kt. Seas 4 to 6 ft. Wave Detail: W 5 ft
at 6 seconds and SE 4 ft at 9 seconds.
.SUN NIGHT...NW winds around 10 kt, becoming N after midnight.
Seas 3 to 4 ft. Wave Detail: S 3 ft at 8 seconds and W 2 ft at
4 seconds.
.MON...NE winds 5 to 10 kt, becoming SE in the afternoon. Seas
2 to 4 ft. Wave Detail: SE 3 ft at 8 seconds and NW 2 ft at
3 seconds.
.MON NIGHT...S winds 10 to 15 kt with gusts up to 20 kt. Seas
2 to 4 ft. Wave Detail: S 3 ft at 4 seconds and SE 2 ft at
8 seconds.
.TUE...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to
5 ft.
.TUE NIGHT...SW winds 15 to 20 kt with gusts up to 30 kt. Seas
4 to 6 ft.
.WED...SW winds 15 to 20 kt with gusts up to 30 kt. Seas 3 to
5 ft.
.WED NIGHT...SW winds 15 to 20 kt with gusts up to 30 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.
$$
ANZ281-170000-
Ocean Waters from Provincetown to Nantucket from 20 to 60 NM-
702 AM EDT Sat May 16 2026
.TODAY...SW winds 10 to 15 kt, increasing to 15 to 20 kt with
gusts up to 25 kt this afternoon. Seas 5 to 6 ft. Wave Detail: E
6 ft at 10 seconds and SW 3 ft at 8 seconds. Patchy fog. Vsby
1 NM or less.
.TONIGHT...SW winds 15 to 20 kt with gusts up to 30 kt. Seas 5 to
6 ft. Wave Detail: SW 5 ft at 6 seconds and SE 4 ft at 9 seconds.
Patchy fog in the evening with vsby 1 NM or less.
.SUN...SW winds 15 to 20 kt, diminishing to 10 to 15 kt in the
afternoon. Gusts up to 25 kt. Seas 4 to 6 ft. Wave Detail: SW
5 ft at 7 seconds and SE 3 ft at 9 seconds.
.SUN NIGHT...W winds 10 to 15 kt, becoming N after midnight. Seas
4 to 5 ft. Wave Detail: W 4 ft at 7 seconds and S 3 ft at
8 seconds.
.MON...NE winds 5 to 10 kt, becoming SE in the afternoon. Seas
3 to 4 ft. Wave Detail: SW 3 ft at 7 seconds and E 3 ft at
8 seconds.
.MON NIGHT...S winds 10 to 15 kt with gusts up to 20 kt. Seas
around 3 ft. Wave Detail: S 3 ft at 7 seconds.
.TUE...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to
5 ft.
.TUE NIGHT AND WED...SW winds 15 to 20 kt with gusts up to 30 kt.
Seas 5 to 6 ft.
.WED NIGHT...SW winds 15 to 20 kt with gusts up to 30 kt. Seas
4 to 6 ft. A chance of showers.
Seas are reported as significant wave height, which is the
average of the highest third of the waves. Individual wave
heights may be more than twice the significant wave height.
$$
ANZ282-170000-
Ocean Waters from Marthas Vineyard to Nantucket from 25 to 60 NM-
702 AM EDT Sat May 16 2026
.TODAY...SW winds 5 to 10 kt, increasing to 10 to 15 kt with
gusts up to 20 kt this afternoon. Seas 5 to 6 ft. Wave Detail: E
5 ft at 10 seconds and SW 3 ft at 9 seconds. Patchy fog. Vsby
1 NM or less.
.TONIGHT...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 5 to
6 ft. Wave Detail: SW 5 ft at 6 seconds and E 4 ft at 9 seconds.
Patchy fog in the evening with vsby 1 to 3 NM.
.SUN...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 5 to
6 ft. Wave Detail: SW 6 ft at 6 seconds and SE 3 ft at 9 seconds.
.SUN NIGHT...W winds 10 to 15 kt, becoming NW 5 to 10 kt after
midnight. Seas 4 to 6 ft. Wave Detail: SW 4 ft at 7 seconds and S
3 ft at 8 seconds.
.MON...E winds 5 to 10 kt, becoming SE in the afternoon. Seas
3 to 4 ft. Wave Detail: SW 3 ft at 7 seconds and SE 2 ft at
8 seconds.
.MON NIGHT...S winds 10 to 15 kt. Seas around 3 ft. Wave Detail:
S 2 ft at 7 seconds.
.TUE...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to
5 ft.
.TUE NIGHT AND WED...SW winds 15 to 20 kt with gusts up to 25 kt.
Seas 5 to 6 ft.
.WED NIGHT...SW winds 15 to 20 kt with gusts up to 25 kt. Seas
5 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.
$$
ANZ283-170000-
Ocean Waters from Montauk NY to Marthas Vineyard from 25 to 60 NM-
702 AM EDT Sat May 16 2026
.TODAY...SW winds 5 to 10 kt, increasing to 10 to 15 kt with
gusts up to 20 kt this afternoon. Seas 4 to 5 ft. Wave Detail: E
5 ft at 10 seconds and SW 3 ft at 9 seconds. Patchy fog this
morning with vsby 1 NM or less.
.TONIGHT...SW winds 15 to 20 kt with gusts up to 30 kt. Seas 5 to
7 ft. Wave Detail: SW 6 ft at 6 seconds and E 4 ft at 9 seconds.
.SUN...SW winds 15 to 20 kt, diminishing to 10 to 15 kt in the
afternoon. Gusts up to 25 kt. Seas 5 to 7 ft. Wave Detail: SW
6 ft at 7 seconds and E 3 ft at 9 seconds.
.SUN NIGHT...SW winds 10 to 15 kt, becoming NW 5 to 10 kt after
midnight. Seas 4 to 6 ft. Wave Detail: SW 4 ft at 7 seconds and
SE 2 ft at 8 seconds.
.MON...E winds around 10 kt, becoming SE in the afternoon. Seas
3 to 4 ft. Wave Detail: SW 3 ft at 7 seconds and SE 2 ft at
8 seconds.
.MON NIGHT...S winds 10 to 15 kt. Seas around 3 ft. Wave Detail:
S 3 ft at 6 seconds and SE 2 ft at 9 seconds.
.TUE...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to
5 ft.
.TUE NIGHT AND WED...SW winds around 20 kt with gusts up to
25 kt. Seas 5 to 6 ft.
.WED NIGHT...SW winds 15 to 20 kt with gusts up to 25 kt. Seas
5 to 6 ft. A chance of showers.
Seas are reported as significant wave height, which is the
average of the highest third of the waves. Individual wave
heights may be more than twice the significant wave height.
$$
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www.weather.gov/boston
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CWFBOX
Coastal Waters Forecast for Massachusetts and Rhode Island
National Weather Service Boston/Norton MA
702 AM EDT Sat May 16 2026
Coastal waters from the Merrimack River MA to Watch Hill RI out
to 60 NM
ANZ200-170000-
702 AM EDT Sat May 16 2026
.Synopsis for Massachusetts and Rhode Island coastal waters...
A Bermuda high develops over the weekend into early next week,
providing tranquil boating weather across the MA and RI waters. Next
trough of low pressure may arrive around Wednesday.
$$
ANZ250-170000-
Coastal waters east of Ipswich Bay and the Stellwagen Bank
National Marine Sanctuary-
702 AM EDT Sat May 16 2026
...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT...
.TODAY...SW winds around 10 kt, becoming S 15 to 20 kt with gusts
up to 25 kt this afternoon. Seas 4 to 5 ft. Wave Detail: E 5 ft
at 10 seconds and SW 3 ft at 4 seconds.
.TONIGHT...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to
5 ft. Wave Detail: S 4 ft at 5 seconds and E 4 ft at 9 seconds.
.SUN...SW winds 10 to 15 kt. Gusts up to 20 kt in the morning.
Seas 2 to 4 ft. Wave Detail: SW 4 ft at 5 seconds and SE 3 ft at
9 seconds.
.SUN NIGHT...NW winds 5 to 10 kt, becoming NE after midnight.
Seas 2 to 3 ft. Wave Detail: SE 2 ft at 8 seconds and W 1 foot at
3 seconds.
.MON...E winds around 5 kt, becoming SE 10 to 15 kt with gusts up
to 20 kt in the afternoon. Seas 2 to 3 ft. Wave Detail: S 2 ft at
3 seconds and SE 2 ft at 8 seconds.
.MON NIGHT...S winds 10 to 15 kt with gusts up to 20 kt. Seas
2 to 3 ft. Wave Detail: S 3 ft at 4 seconds and SE 2 ft at
8 seconds.
.TUE AND TUE NIGHT...SW winds 15 to 20 kt with gusts up to 25 kt.
Seas 2 to 4 ft.
.WED AND WED NIGHT...SW winds 15 to 20 kt, diminishing to 10 to
15 kt. Gusts up to 25 kt. Seas 2 to 4 ft. A chance of showers.
Seas are reported as significant wave height, which is the
average of the highest third of the waves. Individual wave
heights may be more than twice the significant wave height.
$$
ANZ251-170000-
Massachusetts Bay and Ipswich Bay-
702 AM EDT Sat May 16 2026
...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT...
.TODAY...SW winds 10 to 15 kt. Gusts up to 20 kt this afternoon.
Seas 2 to 4 ft. Wave Detail: E 4 ft at 10 seconds and NW 3 ft at
5 seconds.
.TONIGHT...S winds 15 to 20 kt, becoming SW 10 to 15 kt after
midnight. Seas 2 to 4 ft. Wave Detail: S 3 ft at 4 seconds and E
3 ft at 10 seconds.
.SUN...W winds 10 to 15 kt, diminishing to 5 to 10 kt in the
afternoon. Seas 2 to 3 ft. Wave Detail: SW 2 ft at 4 seconds and
E 2 ft at 9 seconds.
.SUN NIGHT...NW winds 5 to 10 kt, becoming N after midnight. Seas
around 2 ft. Wave Detail: W 1 foot at 3 seconds and E 1 foot at
8 seconds.
.MON...E winds around 5 kt, becoming SE 10 to 15 kt with gusts up
to 20 kt in the afternoon. Seas around 2 ft. Wave Detail: SE 2 ft
at 3 seconds and E 1 foot at 7 seconds.
.MON NIGHT...S winds 10 to 15 kt. Gusts up to 20 kt in the
evening. Seas around 2 ft. Wave Detail: SE 2 ft at 4 seconds and
E 1 foot at 8 seconds.
.TUE AND TUE NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt.
Seas 2 to 3 ft.
.WED AND WED NIGHT...SW 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.
$$
ANZ231-170000-
Cape Cod Bay-
702 AM EDT Sat May 16 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM NOON EDT TODAY THROUGH
THIS EVENING...
.TODAY...SW winds 5 to 10 kt, increasing to 10 to 15 kt with
gusts up to 25 kt this afternoon. Seas 2 to 4 ft. Wave Detail: SW
2 ft at 3 seconds and NE 1 foot at 8 seconds.
.TONIGHT...SW winds around 15 kt with gusts up to 25 kt. Seas
2 to 4 ft. Wave Detail: SW 2 ft at 3 seconds and E 1 foot at
8 seconds.
.SUN...SW winds 10 to 15 kt with gusts up to 20 kt, diminishing
to 5 to 10 kt in the afternoon. Seas around 2 ft. Wave Detail: SW
2 ft at 3 seconds and E 1 foot at 9 seconds.
.SUN NIGHT...W winds 5 to 10 kt, becoming N after midnight. Seas
around 2 ft in the evening, then 1 foot or less. Wave Detail: W
1 foot at 3 seconds and SE 1 foot at 9 seconds, becoming NW
1 foot at 3 seconds and E 1 foot at 8 seconds.
.MON...E winds around 5 kt, becoming SE in the afternoon. Seas
1 foot or less, then around 2 ft in the afternoon. Wave Detail: E
1 foot at 3 seconds and NW 1 foot at 3 seconds, becoming E 1 foot
at 4 seconds.
.MON NIGHT...S winds 10 to 15 kt. Gusts up to 20 kt after
midnight. Seas around 2 ft. Wave Detail: S 1 foot at 2 seconds
and NE 1 foot at 4 seconds.
.TUE THROUGH WED...SW winds 15 to 20 kt with gusts up to 25 kt.
Seas 2 to 4 ft.
.WED NIGHT...SW winds 10 to 15 kt with gusts up to 25 kt. Seas
2 to 4 ft. A chance of showers.
Seas are reported as significant wave height, which is the
average of the highest third of the waves. Individual wave
heights may be more than twice the significant wave height.
$$
ANZ254-170000-
Coastal waters from Provincetown MA to Chatham MA to Nantucket MA
out 20 NM-
702 AM EDT Sat May 16 2026
...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT...
.TODAY...SW winds 10 to 15 kt. Gusts up to 25 kt this afternoon.
Seas 4 to 5 ft. Wave Detail: E 5 ft at 10 seconds and SW 3 ft at
4 seconds. Patchy fog this morning with vsby 1 NM or less.
.TONIGHT...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 4 to
6 ft. Wave Detail: SW 5 ft at 6 seconds and E 4 ft at 9 seconds.
.SUN...SW winds 15 to 20 kt, diminishing to 10 to 15 kt in the
afternoon. Gusts up to 25 kt. Seas 4 to 6 ft. Wave Detail: SW
5 ft at 6 seconds and SE 3 ft at 9 seconds.
.SUN NIGHT...W winds 10 to 15 kt, becoming N 5 to 10 kt after
midnight. Seas 2 to 4 ft. Wave Detail: W 3 ft at 5 seconds and SE
3 ft at 8 seconds.
.MON...E winds 5 to 10 kt, becoming SE in the afternoon. Seas
2 to 3 ft. Wave Detail: W 2 ft at 5 seconds and E 2 ft at
8 seconds.
.MON NIGHT...S winds 10 to 15 kt. Gusts up to 20 kt after
midnight. Seas 2 to 3 ft. Wave Detail: S 2 ft at 4 seconds and SE
2 ft at 7 seconds.
.TUE...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to
4 ft.
.TUE NIGHT AND WED...SW winds 15 to 20 kt with gusts up to 25 kt.
Seas 3 to 5 ft.
.WED 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.
$$
ANZ255-170000-
Coastal Waters extending out to 25 NM South of Marthas Vineyard
and Nantucket-
702 AM EDT Sat May 16 2026
...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT...
.TODAY...SW winds 5 to 10 kt, increasing to 10 to 15 kt with
gusts up to 20 kt this afternoon. Seas 3 to 5 ft. Wave Detail: SE
5 ft at 10 seconds and SW 3 ft at 5 seconds.
.TONIGHT...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 4 to
6 ft. Wave Detail: SW 6 ft at 6 seconds and SE 4 ft at 9 seconds.
.SUN...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 4 to
6 ft. Wave Detail: SW 6 ft at 7 seconds and SE 3 ft at 9 seconds.
.SUN NIGHT...W winds 10 to 15 kt with gusts up to 20 kt, becoming
N after midnight. Seas 3 to 5 ft. Wave Detail: SW 4 ft at
7 seconds and SE 2 ft at 8 seconds.
.MON...E winds around 10 kt, becoming SE in the afternoon. Seas
2 to 4 ft. Wave Detail: SW 3 ft at 7 seconds and SE 2 ft at
9 seconds.
.MON NIGHT...S winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: S
3 ft at 7 seconds.
.TUE...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to
5 ft.
.TUE NIGHT AND WED...SW winds 15 to 20 kt with gusts up to 25 kt.
Seas 4 to 6 ft.
.WED NIGHT...SW winds 15 to 20 kt with gusts up to 25 kt. Seas
4 to 6 ft. A chance of showers.
Seas are reported as significant wave height, which is the
average of the highest third of the waves. Individual wave
heights may be more than twice the significant wave height.
$$
ANZ256-170000-
Coastal Waters from Montauk NY to Marthas Vineyard extending out
to 20 NM South of Block Island-
702 AM EDT Sat May 16 2026
...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT...
.TODAY...SW winds 5 to 10 kt, increasing to 10 to 15 kt with
gusts up to 20 kt this afternoon. Seas 4 to 5 ft. Wave Detail: SE
5 ft at 10 seconds and SW 3 ft at 6 seconds.
.TONIGHT...SW winds 15 to 20 kt, increasing to 20 to 25 kt after
midnight. Gusts up to 30 kt. Seas 4 to 6 ft. Wave Detail: SW 6 ft
at 6 seconds and SE 4 ft at 9 seconds.
.SUN...SW winds 15 to 20 kt, diminishing to 10 to 15 kt in the
afternoon. Gusts up to 25 kt. Seas 5 to 6 ft. Wave Detail: SW
6 ft at 7 seconds and SE 2 ft at 9 seconds.
.SUN NIGHT...W winds 10 to 15 kt with gusts up to 20 kt, becoming
N 5 to 10 kt after midnight. Seas 3 to 5 ft. Wave Detail: SW 4 ft
at 7 seconds and SE 2 ft at 8 seconds.
.MON...E winds around 10 kt, becoming SE in the afternoon. Seas
3 to 4 ft. Wave Detail: S 3 ft at 7 seconds and SE 2 ft at
8 seconds.
.MON NIGHT...S winds 10 to 15 kt. Seas around 3 ft. Wave Detail:
S 3 ft at 7 seconds and SE 2 ft at 8 seconds.
.TUE...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to
5 ft.
.TUE NIGHT AND WED...SW winds 15 to 20 kt with gusts up to 25 kt.
Seas 4 to 6 ft.
.WED 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.
$$
ANZ232-170000-
Nantucket Sound-
702 AM EDT Sat May 16 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM NOON EDT TODAY THROUGH
THIS EVENING...
.TODAY...SW winds 10 to 15 kt. Gusts up to 20 kt this afternoon.
Seas 2 to 3 ft. Wave Detail: SW 3 ft at 4 seconds and E 3 ft at
7 seconds.
.TONIGHT...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to
4 ft. Wave Detail: SW 3 ft at 4 seconds and SE 2 ft at 8 seconds.
.SUN...SW winds 15 to 20 kt, diminishing to 10 to 15 kt in the
afternoon. Seas 2 to 4 ft. Wave Detail: SW 3 ft at 4 seconds and
E 1 foot at 9 seconds.
.SUN NIGHT...W winds 10 to 15 kt with gusts up to 20 kt, becoming
N 5 to 10 kt after midnight. Seas 2 to 3 ft. Wave Detail: W 2 ft
at 4 seconds and SE 1 foot at 9 seconds.
.MON...E winds 5 to 10 kt, becoming SE in the afternoon. Seas
around 2 ft. Wave Detail: NE 1 foot at 5 seconds and SW 1 foot at
5 seconds.
.MON NIGHT...S winds 10 to 15 kt. Seas around 2 ft. Wave Detail:
SW 2 ft at 3 seconds and E 1 foot at 7 seconds.
.TUE THROUGH WED...SW winds 15 to 20 kt with gusts up to 25 kt.
Seas 2 to 4 ft.
.WED NIGHT...SW winds 15 to 20 kt with gusts up to 25 kt. Seas
2 to 3 ft. A chance of showers.
Seas are reported as significant wave height, which is the
average of the highest third of the waves. Individual wave
heights may be more than twice the significant wave height.
$$
ANZ233-170000-
Vineyard Sound-
702 AM EDT Sat May 16 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM NOON EDT TODAY THROUGH
THIS EVENING...
.TODAY...SW winds 10 to 15 kt, increasing to 15 to 20 kt this
afternoon. Seas 2 to 3 ft. Wave Detail: SW 3 ft at 4 seconds and
S 2 ft at 9 seconds.
.TONIGHT...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to
4 ft. Wave Detail: SW 4 ft at 6 seconds and E 2 ft at 9 seconds.
.SUN...SW winds 15 to 20 kt, diminishing to 10 to 15 kt in the
afternoon. Seas 2 to 4 ft. Wave Detail: SW 4 ft at 7 seconds and
E 1 foot at 9 seconds.
.SUN NIGHT...W winds 10 to 15 kt with gusts up to 20 kt, becoming
N 5 to 10 kt after midnight. Seas 2 to 4 ft. Wave Detail: SW 3 ft
at 7 seconds and SE 2 ft at 13 seconds.
.MON...E winds 5 to 10 kt, becoming SE in the afternoon. Seas
around 2 ft. Wave Detail: SW 2 ft at 7 seconds and E 1 foot at
5 seconds.
.MON NIGHT...S winds 10 to 15 kt. Seas around 2 ft. Wave Detail:
S 2 ft at 7 seconds and SE 1 foot at 8 seconds.
.TUE THROUGH WED...SW winds 15 to 20 kt with gusts up to 25 kt.
Seas 2 to 4 ft.
.WED 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.
$$
ANZ234-170000-
Buzzards Bay-
702 AM EDT Sat May 16 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM NOON EDT TODAY THROUGH
THIS EVENING...
.TODAY...SW winds 10 to 15 kt, increasing to 15 to 20 kt this
afternoon. Gusts up to 25 kt. Seas 2 to 4 ft. Wave Detail: SW
3 ft at 4 seconds and S 1 foot at 10 seconds.
.TONIGHT...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to
4 ft. Wave Detail: SW 3 ft at 5 seconds and SE 2 ft at 8 seconds.
.SUN...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to
3 ft. Wave Detail: SW 3 ft at 6 seconds and SE 2 ft at
10 seconds.
.SUN NIGHT...W winds 10 to 15 kt with gusts up to 20 kt, becoming
N around 5 kt after midnight. Seas 2 to 3 ft. Wave Detail: SW
2 ft at 6 seconds and SE 2 ft at 11 seconds.
.MON...E winds 5 to 10 kt, becoming SE in the afternoon. Seas
around 2 ft. Wave Detail: E 1 foot at 3 seconds and SW 1 foot at
7 seconds.
.MON NIGHT...S winds 5 to 10 kt. Seas around 2 ft. Wave Detail:
SE 1 foot at 7 seconds.
.TUE THROUGH WED...SW winds 15 to 20 kt with gusts up to 25 kt.
Seas 2 to 4 ft.
.WED NIGHT...SW winds 15 to 20 kt with gusts up to 25 kt. Seas
2 to 4 ft. A chance of showers.
Seas are reported as significant wave height, which is the
average of the highest third of the waves. Individual wave
heights may be more than twice the significant wave height.
$$
ANZ235-170000-
Rhode Island Sound-
702 AM EDT Sat May 16 2026
...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT...
.TODAY...SW winds 10 to 15 kt, increasing to 15 to 20 kt this
afternoon. Seas 3 to 4 ft. Wave Detail: SW 4 ft at 4 seconds and
SE 4 ft at 10 seconds.
.TONIGHT...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to
5 ft. Wave Detail: SW 5 ft at 6 seconds and SE 3 ft at 9 seconds.
.SUN...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to
5 ft. Wave Detail: SW 5 ft at 7 seconds and SE 3 ft at 9 seconds.
.SUN NIGHT...W winds 10 to 15 kt with gusts up to 20 kt, becoming
N 5 to 10 kt after midnight. Seas 3 to 5 ft. Wave Detail: SW 4 ft
at 7 seconds and SE 3 ft at 11 seconds.
.MON...E winds 5 to 10 kt, becoming SE in the afternoon. Seas
2 to 3 ft. Wave Detail: S 3 ft at 7 seconds and SE 2 ft at
8 seconds.
.MON NIGHT...S winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: S
2 ft at 7 seconds and SE 2 ft at 8 seconds.
.TUE...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to
4 ft.
.TUE NIGHT AND WED...SW winds 15 to 20 kt with gusts up to 25 kt.
Seas 3 to 5 ft.
.WED 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.
$$
ANZ237-170000-
Block Island Sound-
702 AM EDT Sat May 16 2026
...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT...
.TODAY...SW winds 5 to 10 kt, increasing to 10 to 15 kt with
gusts up to 20 kt this afternoon. Seas 3 to 4 ft. Wave Detail: SE
4 ft at 10 seconds and SW 3 ft at 8 seconds.
.TONIGHT...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to
5 ft. Wave Detail: SW 4 ft at 5 seconds and SE 3 ft at 9 seconds.
.SUN...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to
4 ft. Wave Detail: SW 4 ft at 7 seconds and SE 2 ft at 9 seconds.
.SUN NIGHT...W winds 10 to 15 kt, becoming N 5 to 10 kt after
midnight. Seas 2 to 4 ft. Wave Detail: SW 3 ft at 7 seconds and
SE 2 ft at 8 seconds.
.MON...E winds 5 to 10 kt, becoming SE in the afternoon. Seas
2 to 3 ft. Wave Detail: S 3 ft at 7 seconds and SE 2 ft at
8 seconds.
.MON NIGHT...S winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: S
2 ft at 7 seconds and SE 2 ft at 8 seconds.
.TUE THROUGH WED...SW winds 15 to 20 kt with gusts up to 25 kt.
Seas 2 to 4 ft.
.WED NIGHT...SW winds 15 to 20 kt with gusts up to 25 kt. Seas
3 to 4 ft. A chance of showers.
Seas are reported as significant wave height, which is the
average of the highest third of the waves. Individual wave
heights may be more than twice the significant wave height.
$$
ANZ230-170000-
Boston Harbor-
702 AM EDT Sat May 16 2026
.TODAY...SW winds 10 to 15 kt. Gusts up to 20 kt this afternoon.
Waves 1 foot or less, then around 2 ft this afternoon.
.TONIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Waves
around 2 ft.
.SUN...W winds 10 to 15 kt. Gusts up to 20 kt in the afternoon.
Waves around 2 ft.
.SUN NIGHT...NW winds 5 to 10 kt, becoming NE after midnight.
Waves around 2 ft in the evening, then 1 foot or less.
.MON...E winds 5 to 10 kt, becoming SE 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.
.MON NIGHT...S winds 10 to 15 kt. Waves around 2 ft.
.TUE AND TUE NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt.
Waves around 2 ft.
.WED AND WED 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.
$$
ANZ236-170000-
Narragansett Bay-
702 AM EDT Sat May 16 2026
.TODAY...SW winds 5 to 10 kt, increasing to 10 to 15 kt with
gusts up to 20 kt this afternoon. Waves 2 to 3 ft.
.TONIGHT...SW winds 10 to 15 kt with gusts up to 25 kt. Waves
2 to 3 ft.
.SUN...SW winds 5 to 10 kt, becoming W 10 to 15 kt in the
afternoon. Waves 2 to 3 ft.
.SUN NIGHT...W winds 5 to 10 kt, becoming N after midnight. Waves
2 to 3 ft.
.MON...E winds 5 to 10 kt, becoming S in the afternoon. Waves
around 2 ft.
.MON NIGHT...S winds 5 to 10 kt. Waves around 2 ft.
.TUE THROUGH WED...SW winds 10 to 15 kt with gusts up to 25 kt.
Waves 2 to 3 ft.
.WED NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Waves
2 to 3 ft. A chance of showers.
Seas are reported as significant wave height, which is the
average of the highest third of the waves. Individual wave
heights may be more than twice the significant wave height.
$$
ANZ280-170000-
Ocean Waters from the Merrimack River to Plymouth from 40 to
60 NM-
702 AM EDT Sat May 16 2026
.TODAY...SW winds 10 to 15 kt, increasing to 15 to 20 kt this
afternoon. Gusts up to 25 kt. Seas 5 to 6 ft. Wave Detail: E 5 ft
at 10 seconds and SW 3 ft at 4 seconds.
.TONIGHT...SW winds 15 to 20 kt with gusts up to 30 kt. Seas 5 to
6 ft. Wave Detail: S 5 ft at 6 seconds and E 4 ft at 9 seconds.
.SUN...SW winds 15 to 20 kt, diminishing to 10 to 15 kt in the
afternoon. Gusts up to 25 kt. Seas 4 to 6 ft. Wave Detail: W 5 ft
at 6 seconds and SE 4 ft at 9 seconds.
.SUN NIGHT...NW winds around 10 kt, becoming N after midnight.
Seas 3 to 4 ft. Wave Detail: S 3 ft at 8 seconds and W 2 ft at
4 seconds.
.MON...NE winds 5 to 10 kt, becoming SE in the afternoon. Seas
2 to 4 ft. Wave Detail: SE 3 ft at 8 seconds and NW 2 ft at
3 seconds.
.MON NIGHT...S winds 10 to 15 kt with gusts up to 20 kt. Seas
2 to 4 ft. Wave Detail: S 3 ft at 4 seconds and SE 2 ft at
8 seconds.
.TUE...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to
5 ft.
.TUE NIGHT...SW winds 15 to 20 kt with gusts up to 30 kt. Seas
4 to 6 ft.
.WED...SW winds 15 to 20 kt with gusts up to 30 kt. Seas 3 to
5 ft.
.WED NIGHT...SW winds 15 to 20 kt with gusts up to 30 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.
$$
ANZ281-170000-
Ocean Waters from Provincetown to Nantucket from 20 to 60 NM-
702 AM EDT Sat May 16 2026
.TODAY...SW winds 10 to 15 kt, increasing to 15 to 20 kt with
gusts up to 25 kt this afternoon. Seas 5 to 6 ft. Wave Detail: E
6 ft at 10 seconds and SW 3 ft at 8 seconds. Patchy fog. Vsby
1 NM or less.
.TONIGHT...SW winds 15 to 20 kt with gusts up to 30 kt. Seas 5 to
6 ft. Wave Detail: SW 5 ft at 6 seconds and SE 4 ft at 9 seconds.
Patchy fog in the evening with vsby 1 NM or less.
.SUN...SW winds 15 to 20 kt, diminishing to 10 to 15 kt in the
afternoon. Gusts up to 25 kt. Seas 4 to 6 ft. Wave Detail: SW
5 ft at 7 seconds and SE 3 ft at 9 seconds.
.SUN NIGHT...W winds 10 to 15 kt, becoming N after midnight. Seas
4 to 5 ft. Wave Detail: W 4 ft at 7 seconds and S 3 ft at
8 seconds.
.MON...NE winds 5 to 10 kt, becoming SE in the afternoon. Seas
3 to 4 ft. Wave Detail: SW 3 ft at 7 seconds and E 3 ft at
8 seconds.
.MON NIGHT...S winds 10 to 15 kt with gusts up to 20 kt. Seas
around 3 ft. Wave Detail: S 3 ft at 7 seconds.
.TUE...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to
5 ft.
.TUE NIGHT AND WED...SW winds 15 to 20 kt with gusts up to 30 kt.
Seas 5 to 6 ft.
.WED NIGHT...SW winds 15 to 20 kt with gusts up to 30 kt. Seas
4 to 6 ft. A chance of showers.
Seas are reported as significant wave height, which is the
average of the highest third of the waves. Individual wave
heights may be more than twice the significant wave height.
$$
ANZ282-170000-
Ocean Waters from Marthas Vineyard to Nantucket from 25 to 60 NM-
702 AM EDT Sat May 16 2026
.TODAY...SW winds 5 to 10 kt, increasing to 10 to 15 kt with
gusts up to 20 kt this afternoon. Seas 5 to 6 ft. Wave Detail: E
5 ft at 10 seconds and SW 3 ft at 9 seconds. Patchy fog. Vsby
1 NM or less.
.TONIGHT...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 5 to
6 ft. Wave Detail: SW 5 ft at 6 seconds and E 4 ft at 9 seconds.
Patchy fog in the evening with vsby 1 to 3 NM.
.SUN...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 5 to
6 ft. Wave Detail: SW 6 ft at 6 seconds and SE 3 ft at 9 seconds.
.SUN NIGHT...W winds 10 to 15 kt, becoming NW 5 to 10 kt after
midnight. Seas 4 to 6 ft. Wave Detail: SW 4 ft at 7 seconds and S
3 ft at 8 seconds.
.MON...E winds 5 to 10 kt, becoming SE in the afternoon. Seas
3 to 4 ft. Wave Detail: SW 3 ft at 7 seconds and SE 2 ft at
8 seconds.
.MON NIGHT...S winds 10 to 15 kt. Seas around 3 ft. Wave Detail:
S 2 ft at 7 seconds.
.TUE...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to
5 ft.
.TUE NIGHT AND WED...SW winds 15 to 20 kt with gusts up to 25 kt.
Seas 5 to 6 ft.
.WED NIGHT...SW winds 15 to 20 kt with gusts up to 25 kt. Seas
5 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.
$$
ANZ283-170000-
Ocean Waters from Montauk NY to Marthas Vineyard from 25 to 60 NM-
702 AM EDT Sat May 16 2026
.TODAY...SW winds 5 to 10 kt, increasing to 10 to 15 kt with
gusts up to 20 kt this afternoon. Seas 4 to 5 ft. Wave Detail: E
5 ft at 10 seconds and SW 3 ft at 9 seconds. Patchy fog this
morning with vsby 1 NM or less.
.TONIGHT...SW winds 15 to 20 kt with gusts up to 30 kt. Seas 5 to
7 ft. Wave Detail: SW 6 ft at 6 seconds and E 4 ft at 9 seconds.
.SUN...SW winds 15 to 20 kt, diminishing to 10 to 15 kt in the
afternoon. Gusts up to 25 kt. Seas 5 to 7 ft. Wave Detail: SW
6 ft at 7 seconds and E 3 ft at 9 seconds.
.SUN NIGHT...SW winds 10 to 15 kt, becoming NW 5 to 10 kt after
midnight. Seas 4 to 6 ft. Wave Detail: SW 4 ft at 7 seconds and
SE 2 ft at 8 seconds.
.MON...E winds around 10 kt, becoming SE in the afternoon. Seas
3 to 4 ft. Wave Detail: SW 3 ft at 7 seconds and SE 2 ft at
8 seconds.
.MON NIGHT...S winds 10 to 15 kt. Seas around 3 ft. Wave Detail:
S 3 ft at 6 seconds and SE 2 ft at 9 seconds.
.TUE...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to
5 ft.
.TUE NIGHT AND WED...SW winds around 20 kt with gusts up to
25 kt. Seas 5 to 6 ft.
.WED NIGHT...SW winds 15 to 20 kt with gusts up to 25 kt. Seas
5 to 6 ft. A chance of showers.
Seas are reported as significant wave height, which is the
average of the highest third of the waves. Individual wave
heights may be more than twice the significant wave height.
$$
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