927
FZUS51 KBOX 220204
CWFBOX

Coastal Waters Forecast for Massachusetts and Rhode Island
National Weather Service Boston/Norton MA
1004 PM EDT Thu Aug 21 2025

Coastal waters from the Merrimack River MA to Watch Hill RI out
to 25 NM

ANZ200-221500-
1004 PM EDT Thu Aug 21 2025

.Synopsis for Massachusetts and Rhode Island coastal waters...
Gusty NE winds increase to near 40 kts tonight into Fri morning as
Hurricane Erin passes several hundred miles southeast of southern
New England. Gale Warnings in effect through Friday evening.
Dangerous marine conditions expected, especially over the south
coastal waters.

$$

ANZ250-221500-
Coastal waters east of Ipswich Bay and the Stellwagen Bank
National Marine Sanctuary-
1004 PM EDT Thu Aug 21 2025

...GALE WARNING IN EFFECT THROUGH FRIDAY EVENING...

.OVERNIGHT...NE winds 20 to 25 kt with gusts up to 35 kt. Seas
5 to 8 ft, building to 7 to 10 ft. Wave Detail: E 7 ft at
7 seconds and S 2 ft at 16 seconds, becoming E 9 ft at 8 seconds
and S 3 ft at 18 seconds.
.FRI...N winds 20 to 25 kt, becoming NE 15 to 20 kt in the
afternoon. Gusts up to 35 kt. Seas 9 to 12 ft. Wave Detail: E
9 ft at 9 seconds and SE 6 ft at 17 seconds.
.FRI NIGHT...SW winds 5 to 10 kt. Seas 8 to 11 ft, subsiding to
7 to 9 ft after midnight. Wave Detail: E 8 ft at 11 seconds and
SE 6 ft at 14 seconds, becoming E 8 ft at 12 seconds and SE 4 ft
at 13 seconds.
.SAT...S winds 10 to 15 kt. Gusts up to 25 kt in the afternoon.
Seas 5 to 8 ft. Wave Detail: E 8 ft at 12 seconds and S 1 foot at
4 seconds.
.SAT NIGHT AND SUN...S winds 15 to 20 kt with gusts up to 25 kt.
Seas 4 to 6 ft. Wave Detail: E 6 ft at 11 seconds and S 4 ft at
4 seconds.
.SUN NIGHT...S 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: S
4 ft at 4 seconds and E 4 ft at 11 seconds. A chance of showers
after midnight.
.MON AND MON NIGHT...S winds 10 to 15 kt, becoming SW. Gusts up
to 20 kt. Seas 3 to 4 ft. A chance of showers.
.TUE AND TUE NIGHT...W winds 10 to 15 kt with gusts up to 20 kt.
Seas 3 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.

$$

ANZ251-221500-
Massachusetts Bay and Ipswich Bay-
1004 PM EDT Thu Aug 21 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH FRIDAY EVENING...

.OVERNIGHT...NE winds 20 to 25 kt with gusts up to 30 kt. Seas
4 to 6 ft. Wave Detail: E 6 ft at 7 seconds and S 2 ft at
18 seconds.
.FRI...N winds 20 to 25 kt, becoming NE 15 to 20 kt in the
afternoon. Gusts up to 30 kt. Seas 5 to 8 ft. Wave Detail: E 7 ft
at 8 seconds and SE 2 ft at 20 seconds.
.FRI NIGHT...S winds 5 to 10 kt. Seas 5 to 7 ft. Wave Detail: E
7 ft at 11 seconds and SE 3 ft at 15 seconds.
.SAT...SW winds 5 to 10 kt, becoming S 10 to 15 kt with gusts up
to 20 kt in the afternoon. Seas 5 to 7 ft. Wave Detail: E 7 ft at
12 seconds and SE 1 foot at 12 seconds.
.SAT NIGHT...S 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: E
6 ft at 11 seconds and S 3 ft at 5 seconds.
.SUN...S winds 10 to 15 kt, increasing to 15 to 20 kt in the
afternoon. Gusts up to 25 kt. Seas 3 to 4 ft. Wave Detail: S 4 ft
at 4 seconds and E 4 ft at 11 seconds.
.SUN NIGHT...S winds 15 to 20 kt, diminishing to 10 to 15 kt
after midnight. Gusts up to 25 kt. Seas 2 to 4 ft. A chance of
showers after midnight.
.MON AND MON NIGHT...S winds 10 to 15 kt with gusts up to 20 kt,
becoming SW. Seas 2 to 3 ft. A chance of showers.
.TUE AND TUE NIGHT...W winds 10 to 15 kt with gusts up 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.

$$

ANZ231-221500-
Cape Cod Bay-
1004 PM EDT Thu Aug 21 2025

...GALE WARNING IN EFFECT THROUGH FRIDAY EVENING...

.OVERNIGHT...NE winds around 25 kt with gusts up to 35 kt. Seas
4 to 6 ft. Wave Detail: N 5 ft at 4 seconds and S 4 ft at
18 seconds.
.FRI...N winds 20 to 25 kt, diminishing to 15 to 20 kt in the
afternoon. Gusts up to 35 kt. Seas 5 to 7 ft. Wave Detail: N 5 ft
at 6 seconds and S 3 ft at 18 seconds.
.FRI NIGHT...W winds 5 to 10 kt with gusts up to 20 kt, becoming
SW after midnight. Seas 3 to 5 ft. Wave Detail: N 4 ft at
6 seconds and SE 3 ft at 15 seconds.
.SAT...SW winds 5 to 10 kt, becoming S 10 to 15 kt with gusts up
to 20 kt in the afternoon. Seas 2 to 4 ft. Wave Detail: NE 3 ft
at 8 seconds and S 2 ft at 3 seconds.
.SAT NIGHT AND SUN...S winds 10 to 15 kt with gusts up to 25 kt.
Seas 2 to 3 ft. Wave Detail: E 3 ft at 8 seconds and S 2 ft at
3 seconds.
.SUN NIGHT...S winds 10 to 15 kt with gusts up to 20 kt. Seas
2 to 3 ft. Wave Detail: E 3 ft at 11 seconds and S 2 ft at
3 seconds. A chance of showers after midnight.
.MON...S winds 10 to 15 kt with gusts up to 20 kt. Seas around
2 ft. A chance of showers.
.MON NIGHT...SW winds around 10 kt. Seas around 2 ft. A chance of
showers.
.TUE AND TUE NIGHT...W winds 10 to 15 kt with gusts up to 20 kt.
Seas 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.

$$

ANZ254-221500-
Coastal waters from Provincetown MA to Chatham MA to Nantucket MA
out 20 nm-
1004 PM EDT Thu Aug 21 2025

...GALE WARNING IN EFFECT THROUGH FRIDAY EVENING...

.OVERNIGHT...NE winds 25 to 30 kt with gusts up to 40 kt. Seas
9 to 13 ft, building to 11 to 15 ft. S and E of Nantucket, seas
14 to 19 ft. Wave Detail: E 9 ft at 7 seconds and S 9 ft at
17 seconds, becoming NE 12 ft at 8 seconds and S 11 ft at
17 seconds.
.FRI...N winds 25 to 30 kt, diminishing to 20 to 25 kt in the
afternoon. Gusts up to 40 kt. Seas 12 to 16 ft, subsiding to
10 to 14 ft in the afternoon. Wave Detail: NE 12 ft at 9 seconds
and S 11 ft at 17 seconds, becoming NE 11 ft at 10 seconds and S
8 ft at 15 seconds.
.FRI NIGHT...N winds 15 to 20 kt with gusts up to 25 kt, becoming
W 5 to 10 kt after midnight. Seas 9 to 12 ft, subsiding to 7 to
10 ft after midnight. Wave Detail: E 10 ft at 12 seconds and SE
6 ft at 13 seconds, becoming E 9 ft at 12 seconds and SE 4 ft at
13 seconds.
.SAT...SW winds 5 to 10 kt, becoming S 10 to 15 kt with gusts up
to 20 kt in the afternoon. Seas 6 to 9 ft. Wave Detail: E 9 ft at
12 seconds and S 1 foot at 5 seconds.
.SAT NIGHT...S winds 10 to 15 kt with gusts up to 20 kt. Seas
5 to 7 ft. Wave Detail: E 6 ft at 12 seconds and SW 2 ft at
6 seconds.
.SUN...S winds 10 to 15 kt with gusts up to 20 kt. Seas 4 to
5 ft. Wave Detail: E 5 ft at 11 seconds and S 2 ft at 5 seconds.
.SUN NIGHT...S winds 10 to 15 kt with gusts up to 20 kt. Seas
3 to 4 ft. A chance of showers after midnight.
.MON AND MON NIGHT...S winds 10 to 15 kt with gusts up to 20 kt,
becoming SW. Seas 3 to 4 ft. A chance of showers.
.TUE AND TUE 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.

$$

ANZ255-221500-
Coastal Waters extending out to 25 nm South of Marthas Vineyard
and Nantucket-
1004 PM EDT Thu Aug 21 2025

...GALE WARNING IN EFFECT THROUGH FRIDAY EVENING...

.OVERNIGHT...NE winds 30 to 35 kt with gusts up to 40 kt. Seas
12 to 16 ft, building to 13 to 18 ft. Wave Detail: S 13 ft at
17 seconds and E 9 ft at 7 seconds, becoming S 14 ft at
17 seconds and E 10 ft at 8 seconds. A slight chance of showers.
.FRI...N winds 25 to 35 kt with gusts up to 40 kt. Seas 12 to
16 ft, subsiding to 9 to 13 ft in the afternoon. Wave Detail: S
12 ft at 16 seconds and NE 10 ft at 9 seconds, becoming NE 10 ft
at 10 seconds and SE 7 ft at 14 seconds.
.FRI NIGHT...N winds 15 to 20 kt with gusts up to 25 kt, becoming
W 5 to 10 kt after midnight. Seas 7 to 10 ft. Wave Detail: E 8 ft
at 11 seconds and SE 5 ft at 12 seconds.
.SAT...SW winds 5 to 10 kt, becoming S 10 to 15 kt in the
afternoon. Seas 5 to 7 ft. Wave Detail: E 7 ft at 12 seconds and
S 2 ft at 9 seconds.
.SAT NIGHT...S winds 10 to 15 kt. Seas 4 to 6 ft. Wave Detail: E
6 ft at 13 seconds and SW 3 ft at 8 seconds.
.SUN...S winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to
5 ft. Wave Detail: E 4 ft at 11 seconds and SW 3 ft at 5 seconds.
.SUN NIGHT...S winds 10 to 15 kt. Gusts up to 20 kt in the
evening. Seas 3 to 4 ft. A chance of showers after midnight.
.MON...S winds 10 to 15 kt. Seas 3 to 4 ft. A chance of showers.
.MON NIGHT...SW winds 10 to 15 kt. Seas 3 to 5 ft. A chance of
showers.
.TUE AND TUE 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.

$$

ANZ256-221500-
Coastal Waters from Montauk NY to Marthas Vineyard extending out
to 20 nm South of Block Island-
1004 PM EDT Thu Aug 21 2025

...GALE WARNING IN EFFECT THROUGH FRIDAY AFTERNOON...

.OVERNIGHT...NE winds 30 to 35 kt with gusts up to 40 kt. Seas
14 to 18 ft. Wave Detail: S 13 ft at 17 seconds and NE 12 ft at
8 seconds.
.FRI...N winds 25 to 30 kt with gusts up to 40 kt, diminishing to
20 to 25 kt with gusts up to 30 kt in the afternoon. Seas 12 to
16 ft, subsiding to 9 to 13 ft in the afternoon. Wave Detail: N
11 ft at 7 seconds and S 11 ft at 16 seconds, becoming NE 10 ft
at 11 seconds and SE 7 ft at 13 seconds.
.FRI NIGHT...SE winds 10 to 15 kt with gusts up to 20 kt,
becoming SW after midnight. Seas 7 to 10 ft, subsiding to 5 to
8 ft after midnight. Wave Detail: E 9 ft at 12 seconds and SE
4 ft at 14 seconds, becoming E 7 ft at 12 seconds and S 2 ft at
10 seconds.
.SAT...SW winds around 10 kt. Gusts up to 20 kt in the afternoon.
Seas 5 to 7 ft. Wave Detail: E 6 ft at 12 seconds and S 2 ft at
10 seconds.
.SAT NIGHT AND SUN...S winds 10 to 15 kt with gusts up to 20 kt.
Seas 4 to 6 ft. Wave Detail: E 5 ft at 13 seconds and SW 3 ft at
5 seconds.
.SUN NIGHT...S winds 10 to 15 kt. Gusts up to 20 kt in the
evening. Seas 3 to 4 ft. Wave Detail: S 3 ft at 5 seconds and E
3 ft at 12 seconds. A chance of showers after midnight.
.MON AND MON NIGHT...S winds 10 to 15 kt, becoming W. Seas 3 to
5 ft. A chance of showers.
.TUE AND TUE NIGHT...W winds 10 to 15 kt with gusts up 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.

$$

ANZ232-221500-
Nantucket Sound-
1004 PM EDT Thu Aug 21 2025

...GALE WARNING IN EFFECT THROUGH FRIDAY EVENING...

.OVERNIGHT...NE winds 30 to 35 kt with gusts up to 40 kt. Seas
6 to 9 ft. Wave Detail: NE 6 ft at 6 seconds and S 3 ft at
17 seconds.
.FRI...N winds 25 to 30 kt, diminishing to 20 to 25 kt in the
afternoon. Gusts up to 40 kt. Seas 6 to 9 ft, subsiding to 5 to
7 ft in the afternoon. Wave Detail: N 6 ft at 6 seconds and S
3 ft at 17 seconds, becoming N 6 ft at 6 seconds and S 3 ft at
14 seconds.
.FRI NIGHT...N winds 15 to 20 kt, becoming W 5 to 10 kt after
midnight. Seas 4 to 6 ft. Wave Detail: NE 5 ft at 10 seconds and
N 2 ft at 6 seconds.
.SAT...SW winds 10 to 15 kt. Gusts up to 20 kt in the afternoon.
Seas 3 to 5 ft. Wave Detail: E 4 ft at 12 seconds and SW 2 ft at
6 seconds.
.SAT NIGHT AND SUN...S winds 10 to 15 kt with gusts up to 20 kt.
Seas 2 to 4 ft. Wave Detail: E 4 ft at 13 seconds and S 3 ft at
4 seconds.
.SUN NIGHT...S winds 10 to 15 kt. Gusts up to 20 kt in the
evening. Seas 2 to 3 ft. Wave Detail: S 3 ft at 4 seconds and E
2 ft at 11 seconds. A chance of showers after midnight.
.MON...S winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to
3 ft. A chance of showers.
.MON NIGHT...SW winds 10 to 15 kt. Seas 2 to 3 ft. A chance of
showers.
.TUE AND TUE 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.

$$

ANZ233-221500-
Vineyard Sound-
1004 PM EDT Thu Aug 21 2025

...GALE WARNING IN EFFECT THROUGH FRIDAY AFTERNOON...

.OVERNIGHT...NE winds 25 to 30 kt with gusts up to 35 kt. Seas
7 to 10 ft. Wave Detail: S 7 ft at 17 seconds and NE 4 ft at
5 seconds.
.FRI...N winds 25 to 30 kt, diminishing to 20 to 25 kt in the
afternoon. Seas 6 to 9 ft, subsiding to 5 to 7 ft in the
afternoon. Wave Detail: S 6 ft at 16 seconds and N 4 ft at
6 seconds, becoming S 4 ft at 14 seconds and N 3 ft at 6 seconds.
.FRI NIGHT...NE winds 10 to 15 kt with gusts up to 20 kt,
becoming SW 5 to 10 kt after midnight. Seas 3 to 5 ft, subsiding
to 2 to 3 ft after midnight. Wave Detail: SE 3 ft at 13 seconds
and N 2 ft at 5 seconds, becoming E 2 ft at 9 seconds and SE 2 ft
at 14 seconds.
.SAT...SW winds 10 to 15 kt. Gusts up to 20 kt in the afternoon.
Seas 2 to 3 ft. Wave Detail: SW 2 ft at 4 seconds and SE 2 ft at
12 seconds.
.SAT NIGHT AND SUN...S winds 10 to 15 kt with gusts up to 20 kt.
Seas 2 to 3 ft. Wave Detail: SW 2 ft at 4 seconds and E 2 ft at
13 seconds.
.SUN NIGHT...S winds 10 to 15 kt. Gusts up to 20 kt in the
evening. Seas 2 to 3 ft. Wave Detail: S 2 ft at 5 seconds and E
1 foot at 10 seconds. A chance of showers after midnight.
.MON...S winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to
3 ft. A chance of showers.
.MON NIGHT...SW winds 10 to 15 kt. Seas 2 to 3 ft. A chance of
showers.
.TUE AND TUE NIGHT...W winds 15 to 20 kt, diminishing to 10 to
15 kt. 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.

$$

ANZ234-221500-
Buzzards Bay-
1004 PM EDT Thu Aug 21 2025

...GALE WARNING IN EFFECT THROUGH FRIDAY AFTERNOON...

.OVERNIGHT...NE winds 25 to 30 kt with gusts up to 35 kt. Seas
5 to 7 ft. Wave Detail: S 5 ft at 17 seconds and NE 4 ft at
4 seconds.
.FRI...N winds 20 to 25 kt with gusts up to 30 kt. Seas 4 to
6 ft. Wave Detail: N 4 ft at 5 seconds and S 4 ft at 16 seconds.
.FRI NIGHT...SE winds 10 to 15 kt with gusts up to 20 kt,
becoming SW 5 to 10 kt after midnight. Seas 2 to 4 ft. Wave
Detail: E 3 ft at 10 seconds and SE 2 ft at 14 seconds.
.SAT...SW winds 10 to 15 kt. Gusts up to 20 kt in the afternoon.
Seas 2 to 3 ft. Wave Detail: SE 3 ft at 12 seconds and SW 2 ft at
4 seconds.
.SAT NIGHT AND SUN...S winds 10 to 15 kt with gusts up to 25 kt.
Seas 2 to 3 ft. Wave Detail: E 3 ft at 13 seconds and SW 2 ft at
4 seconds.
.SUN NIGHT...S winds 10 to 15 kt. Gusts up to 20 kt in the
evening. Seas 2 to 3 ft. Wave Detail: S 2 ft at 4 seconds and E
1 foot at 11 seconds. A chance of showers after midnight.
.MON AND MON NIGHT...S winds 10 to 15 kt, becoming SW. Gusts up
to 20 kt. Seas 2 to 3 ft. A chance of showers.
.TUE AND TUE NIGHT...W winds 15 to 20 kt, diminishing to 10 to
15 kt. 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.

$$

ANZ235-221500-
Rhode Island Sound-
1004 PM EDT Thu Aug 21 2025

...GALE WARNING IN EFFECT THROUGH FRIDAY AFTERNOON...

.OVERNIGHT...NE winds 25 to 30 kt with gusts up to 35 kt. Seas
10 to 14 ft. Wave Detail: S 13 ft at 17 seconds and E 8 ft at
7 seconds.
.FRI...N winds 25 to 30 kt, becoming NE 15 to 20 kt in the
afternoon. Seas 9 to 13 ft, subsiding to 6 to 9 ft in the
afternoon. Wave Detail: S 12 ft at 16 seconds and N 7 ft at
6 seconds, becoming SE 8 ft at 14 seconds and N 5 ft at
6 seconds.
.FRI NIGHT...SE winds 10 to 15 kt, becoming SW after midnight.
Seas 5 to 7 ft, subsiding to 3 to 5 ft after midnight. Wave
Detail: E 6 ft at 8 seconds and SE 6 ft at 13 seconds, becoming
SE 5 ft at 12 seconds and S 2 ft at 8 seconds.
.SAT...SW winds 10 to 15 kt. Gusts up to 20 kt in the afternoon.
Seas 3 to 4 ft. Wave Detail: SE 4 ft at 13 seconds and SW 3 ft at
6 seconds.
.SAT NIGHT AND SUN...S winds 10 to 15 kt with gusts up to 20 kt.
Seas 2 to 4 ft. Wave Detail: SW 3 ft at 5 seconds and SE 3 ft at
13 seconds.
.SUN NIGHT...S winds 10 to 15 kt. Gusts up to 20 kt in the
evening. Seas 2 to 3 ft. Wave Detail: S 3 ft at 5 seconds and SE
1 foot at 8 seconds. A chance of showers after midnight.
.MON AND MON NIGHT...S winds 10 to 15 kt with gusts up to 20 kt,
becoming W. Seas 2 to 4 ft. A chance of showers.
.TUE AND TUE 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.

$$

ANZ237-221500-
Block Island Sound-
1004 PM EDT Thu Aug 21 2025

...GALE WARNING IN EFFECT THROUGH FRIDAY AFTERNOON...

.OVERNIGHT...NE winds 25 to 30 kt with gusts up to 35 kt. Seas
10 to 14 ft. Wave Detail: S 12 ft at 17 seconds and E 8 ft at
8 seconds.
.FRI...N winds 20 to 25 kt, becoming NE 10 to 15 kt in the
afternoon. Gusts up to 30 kt. Seas 9 to 13 ft, subsiding to 7 to
10 ft in the afternoon. Wave Detail: S 11 ft at 16 seconds and E
7 ft at 8 seconds, becoming SE 9 ft at 14 seconds and E 4 ft at
9 seconds.
.FRI NIGHT...S winds 5 to 10 kt, becoming SW after midnight. Seas
5 to 8 ft, subsiding to 4 to 6 ft after midnight. Wave Detail: E
7 ft at 12 seconds and SE 5 ft at 12 seconds, becoming SE 6 ft at
13 seconds and S 1 foot at 8 seconds.
.SAT...SW winds 10 to 15 kt. Gusts up to 20 kt in the afternoon.
Seas 3 to 5 ft. Wave Detail: SE 5 ft at 12 seconds and SW 2 ft at
9 seconds.
.SAT NIGHT AND SUN...S winds 10 to 15 kt with gusts up to 20 kt.
Seas 3 to 4 ft. Wave Detail: SE 4 ft at 13 seconds and S 3 ft at
5 seconds.
.SUN NIGHT...S winds 10 to 15 kt. Gusts up to 20 kt in the
evening. Seas 2 to 3 ft. Wave Detail: S 3 ft at 5 seconds and E
2 ft at 13 seconds. A chance of showers after midnight.
.MON AND MON NIGHT...S winds around 10 kt, becoming W. Seas 2 to
3 ft. A chance of showers.
.TUE...W winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to
4 ft.
.TUE 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.

$$

ANZ230-221500-
Boston Harbor-
1004 PM EDT Thu Aug 21 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH FRIDAY AFTERNOON...

.OVERNIGHT...NE winds 15 to 20 kt with gusts up to 25 kt. Waves
2 to 3 ft.
.FRI...N winds 15 to 20 kt, becoming NE 10 to 15 kt in the
afternoon. Gusts up to 25 kt. Waves 2 to 3 ft, except 3 to 5 ft
at the outer harbor entrance.
.FRI NIGHT...S winds 5 to 10 kt. Waves 1 foot or less, except
2 to 4 ft at the outer harbor entrance.
.SAT...SW winds 5 to 10 kt, becoming S 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. At the outer harbor entrance, waves 2 to 4 ft.
.SAT NIGHT AND SUN...S winds 15 to 20 kt with gusts up to 25 kt.
Waves around 2 ft.
.SUN NIGHT...S winds 10 to 15 kt. Gusts up to 25 kt in the
evening. Waves around 2 ft. A chance of showers after midnight.
.MON AND MON NIGHT...S winds 10 to 15 kt with gusts up to 20 kt,
becoming SW. Waves around 2 ft. A chance of showers.
.TUE AND TUE 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.

$$

ANZ236-221500-
Narragansett Bay-
1004 PM EDT Thu Aug 21 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH FRIDAY AFTERNOON...

.OVERNIGHT...NE winds 15 to 20 kt with gusts up to 30 kt. Waves
around 3 ft, except 6 to 9 ft at the bay entrance.
.FRI...N winds 15 to 20 kt, becoming NE 10 to 15 kt in the
afternoon. Gusts up to 25 kt. Waves 2 to 3 ft, except 5 to 8 ft
at the bay entrance.
.FRI NIGHT...S winds 5 to 10 kt, becoming SW after midnight.
Waves 2 to 4 ft.
.SAT...SW winds 5 to 10 kt, increasing to 10 to 15 kt with gusts
up to 20 kt in the afternoon. Waves 2 to 3 ft.
.SAT NIGHT AND SUN...S winds 10 to 15 kt with gusts up to 20 kt.
Waves 2 to 3 ft.
.SUN NIGHT...S winds 10 to 15 kt. Gusts up to 20 kt in the
evening. Waves around 2 ft. A chance of showers after midnight.
.MON AND MON NIGHT...S winds 10 to 15 kt with gusts up to 20 kt,
becoming W 5 to 10 kt. Waves around 2 ft. A chance of showers.
.TUE AND TUE 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.

$$

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