712
FZUS51 KBOX 221805
CWFBOX

Coastal Waters Forecast for Massachusetts and Rhode Island
National Weather Service Boston/Norton MA
105 PM EST Sat Nov 22 2025

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

ANZ200-230700-
105 PM EST Sat Nov 22 2025

.Synopsis for Massachusetts and Rhode Island coastal waters...
High pres builds in over the waters from the NW tonight, which moves
quickly eastward into the northern Atlantic early on Sun. A weak and
fast moving low pres moves over the waters Sun night. A stronger
high pres brings a freshening to NW winds Mon,.then becoming SWly on
Tue. Rain showers develop Wed into early Thurs with a frontal
system.

$$

ANZ250-230700-
Coastal waters east of Ipswich Bay and the Stellwagen Bank
National Marine Sanctuary-
105 PM EST Sat Nov 22 2025

.THIS AFTERNOON...NW winds 10 to 15 kt with gusts up to 20 kt.
Seas 2 to 3 ft. Wave Detail: NW 2 ft at 3 seconds and SE 2 ft at
6 seconds. A slight chance of rain.
.TONIGHT...NW winds 15 to 20 kt, diminishing to 10 to 15 kt after
midnight. Seas 2 to 3 ft. Wave Detail: N 3 ft at 4 seconds and E
2 ft at 7 seconds.
.SUN...SW winds 5 to 10 kt. Seas around 2 ft. Wave Detail: N 2 ft
at 4 seconds and E 1 foot at 7 seconds.
.SUN NIGHT...W winds around 10 kt, becoming NW with gusts up to
20 kt after midnight. Seas 2 to 3 ft. Wave Detail: W 2 ft at
3 seconds and NE 1 foot at 4 seconds.
.MON...NW winds around 15 kt with gusts up to 20 kt. Seas 2 to
4 ft. Wave Detail: NW 3 ft at 4 seconds and SE 1 foot at
7 seconds.
.MON NIGHT...W winds 10 to 15 kt. Gusts up to 20 kt in the
evening. Seas 2 to 4 ft. Wave Detail: N 3 ft at 4 seconds and E
1 foot at 9 seconds.
.TUE...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to
3 ft.
.TUE NIGHT...S winds 10 to 15 kt with gusts up to 20 kt. Seas
2 to 3 ft. Rain.
.WED AND WED NIGHT...S winds 10 to 15 kt, becoming SW 15 to
20 kt. Gusts up to 25 kt. Seas 2 to 3 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.

$$

ANZ251-230700-
Massachusetts Bay and Ipswich Bay-
105 PM EST Sat Nov 22 2025

.THIS AFTERNOON...NW winds 10 to 15 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.
.TONIGHT...NW winds 15 to 20 kt, diminishing to 10 to 15 kt after
midnight. Seas 2 to 3 ft. Wave Detail: N 2 ft at 4 seconds and E
2 ft at 7 seconds.
.SUN...SW winds 5 to 10 kt. Seas around 2 ft. Wave Detail: N
1 foot at 4 seconds and E 1 foot at 7 seconds.
.SUN NIGHT...W winds 5 to 10 kt, becoming NW 10 to 15 kt after
midnight. Seas around 2 ft. Wave Detail: W 2 ft at 3 seconds and
NE 1 foot at 4 seconds.
.MON...NW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to
3 ft. Wave Detail: N 2 ft at 3 seconds and S 1 foot at 6 seconds.
.MON NIGHT...NW winds 10 to 15 kt, becoming W 5 to 10 kt after
midnight. Seas around 2 ft. Wave Detail: N 2 ft at 4 seconds and
E 1 foot at 10 seconds.
.TUE...SW winds 10 to 15 kt. Seas around 2 ft. A chance of rain.
.TUE NIGHT...S winds 10 to 15 kt with gusts up to 20 kt. Seas
around 2 ft. Rain.
.WED AND WED NIGHT...S winds around 10 kt, becoming SW 15 to
20 kt. Seas 2 to 3 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.

$$

ANZ231-230700-
Cape Cod Bay-
105 PM EST Sat Nov 22 2025

.THIS AFTERNOON...NW winds 10 to 15 kt with gusts up to 20 kt.
Seas around 2 ft. Wave Detail: NW 1 foot at 3 seconds and SE
1 foot at 6 seconds. A slight chance of rain. Vsby 1 to 3 NM.
.TONIGHT...NW 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 6 seconds.
.SUN...SW winds 5 to 10 kt. Seas around 2 ft. Wave Detail: N 2 ft
at 4 seconds and S 1 foot at 7 seconds.
.SUN NIGHT...W winds 5 to 10 kt, becoming NW 10 to 15 kt with
gusts up to 20 kt after midnight. Seas around 2 ft. Wave Detail:
NW 2 ft at 4 seconds and S 1 foot at 7 seconds.
.MON...NW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to
3 ft. Wave Detail: W 2 ft at 5 seconds and E 1 foot at 7 seconds.
.MON NIGHT...NW winds 10 to 15 kt with gusts up to 20 kt,
becoming W 5 to 10 kt after midnight. Seas around 2 ft. Wave
Detail: N 2 ft at 5 seconds and SW 1 foot at 7 seconds.
.TUE...SW winds 10 to 15 kt with gusts up to 20 kt. Seas around
2 ft.
.TUE NIGHT AND WED...S winds 10 to 15 kt. Gusts up to 20 kt. Seas
2 to 3 ft. Rain.
.WED NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas
2 to 3 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.

$$

ANZ254-230700-
Coastal waters from Provincetown MA to Chatham MA to Nantucket MA
out 20 nm-
105 PM EST Sat Nov 22 2025

.THIS AFTERNOON...N winds 10 to 15 kt with gusts up to 20 kt.
Seas 2 to 3 ft. Wave Detail: NW 2 ft at 3 seconds and E 2 ft at
7 seconds. Patchy fog. A chance of rain. Vsby 1 to 3 NM.
.TONIGHT...N winds 10 to 15 kt. Gusts up to 20 kt in the evening.
Seas 2 to 3 ft. Wave Detail: N 3 ft at 4 seconds and E 2 ft at
7 seconds.
.SUN...W winds 5 to 10 kt, becoming SW in the afternoon. Seas
2 to 3 ft. Wave Detail: NE 2 ft at 6 seconds and SE 2 ft at
7 seconds.
.SUN NIGHT...SW winds around 10 kt, becoming NW with gusts up to
20 kt after midnight. Seas 2 to 4 ft. Wave Detail: W 2 ft at
4 seconds and SE 2 ft at 7 seconds. A chance of rain.
.MON AND MON NIGHT...W winds 15 to 20 kt. Seas 2 to 4 ft. Wave
Detail: NW 3 ft at 4 seconds and SW 2 ft at 7 seconds.
.TUE...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to
3 ft. Wave Detail: NW 2 ft at 5 seconds and E 1 foot at
9 seconds.
.TUE NIGHT AND WED...S winds 15 to 20 kt with gusts up to 25 kt.
Seas 2 to 4 ft. Rain.
.WED NIGHT...SW winds 15 to 20 kt with gusts up to 25 kt. Seas
3 to 4 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.

$$

ANZ255-230700-
Coastal Waters extending out to 25 nm South of Marthas Vineyard
and Nantucket-
105 PM EST Sat Nov 22 2025

.THIS AFTERNOON...N winds around 15 kt with gusts up to 20 kt.
Seas 2 to 3 ft. Wave Detail: NW 2 ft at 3 seconds and E 2 ft at
7 seconds. Patchy fog. A chance of rain. Vsby 1 to 3 NM.
.TONIGHT...N winds 15 to 20 kt, diminishing to 10 to 15 kt after
midnight. Seas 2 to 3 ft. Wave Detail: N 2 ft at 4 seconds and E
2 ft at 7 seconds.
.SUN...W winds 5 to 10 kt, becoming SW 10 to 15 kt in the
afternoon. Seas 2 to 3 ft. Wave Detail: W 2 ft at 3 seconds and
SE 2 ft at 7 seconds.
.SUN NIGHT...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 6 seconds and NE 1 foot at 4 seconds. A chance of rain in the
evening.
.MON...NW winds 20 to 25 kt, diminishing to 15 to 20 kt in the
afternoon. Seas 3 to 5 ft. Wave Detail: W 5 ft at 6 seconds and E
1 foot at 7 seconds.
.MON NIGHT...NW winds 10 to 15 kt, becoming W 5 to 10 kt after
midnight. Seas 2 to 4 ft. Wave Detail: W 4 ft at 6 seconds and N
1 foot at 5 seconds.
.TUE...SW winds 10 to 15 kt with gusts up to 20 kt. Seas around
2 ft.
.TUE NIGHT AND WED...S winds 20 to 25 kt, becoming SW 15 to
20 kt. Seas 3 to 5 ft. Rain.
.WED NIGHT...SW winds 20 to 25 kt. Seas 4 to 5 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.

$$

ANZ256-230700-
Coastal Waters from Montauk NY to Marthas Vineyard extending out
to 20 nm South of Block Island-
105 PM EST Sat Nov 22 2025

.THIS AFTERNOON...N winds 10 to 15 kt with gusts up to 20 kt.
Seas 2 to 3 ft. Wave Detail: N 2 ft at 4 seconds and E 2 ft at
7 seconds.
.TONIGHT...N winds 15 to 20 kt, diminishing to 10 to 15 kt after
midnight. Seas 2 to 3 ft. Wave Detail: N 2 ft at 3 seconds and E
2 ft at 7 seconds.
.SUN...W winds around 5 kt, becoming SW 10 to 15 kt in the
afternoon. Seas 2 to 3 ft. Wave Detail: W 2 ft at 3 seconds and S
2 ft at 7 seconds.
.SUN NIGHT...W winds 15 to 20 kt, becoming NW 20 to 25 kt after
midnight. Seas 3 to 5 ft. Wave Detail: SW 3 ft at 5 seconds and E
1 foot at 7 seconds.
.MON...NW winds 20 to 25 kt, diminishing to 15 to 20 kt in the
afternoon. Seas 3 to 5 ft. Wave Detail: W 4 ft at 6 seconds and E
1 foot at 7 seconds.
.MON NIGHT...NW winds 10 to 15 kt, becoming W 5 to 10 kt after
midnight. Seas 2 to 4 ft. Wave Detail: N 3 ft at 4 seconds and SW
2 ft at 7 seconds.
.TUE...SW winds 10 to 15 kt with gusts up to 20 kt. Seas around
2 ft. A chance of rain.
.TUE NIGHT AND WED...S winds 20 to 25 kt, becoming SW 15 to
20 kt. Seas 3 to 5 ft. Rain.
.WED NIGHT...SW winds 20 to 25 kt. Seas 4 to 5 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.

$$

ANZ232-230700-
Nantucket Sound-
105 PM EST Sat Nov 22 2025

.THIS AFTERNOON...N winds 10 to 15 kt. Seas around 2 ft. Wave
Detail: N 1 foot at 3 seconds and SE 1 foot at 5 seconds. Patchy
fog. A chance of rain. Vsby 1 to 3 NM.
.TONIGHT...N winds 10 to 15 kt. Gusts up to 20 kt in the evening.
Seas around 2 ft. Wave Detail: N 1 foot at 3 seconds and SE
1 foot at 7 seconds.
.SUN...W winds 5 to 10 kt, becoming SW in the afternoon. Seas
around 2 ft. Wave Detail: N 1 foot at 3 seconds and S 1 foot at
7 seconds.
.SUN NIGHT...W winds 10 to 15 kt. Gusts up to 20 kt after
midnight. Seas 2 to 3 ft. Wave Detail: W 2 ft at 3 seconds and SW
2 ft at 7 seconds. A chance of rain in the evening.
.MON...NW winds 15 to 20 kt. Seas 2 to 3 ft. Wave Detail: W 2 ft
at 5 seconds and N 1 foot at 5 seconds.
.MON NIGHT...NW winds 10 to 15 kt, becoming W 5 to 10 kt after
midnight. Seas 2 to 3 ft. Wave Detail: N 2 ft at 4 seconds and SW
1 foot at 7 seconds.
.TUE...SW winds 10 to 15 kt with gusts up to 20 kt. Seas around
2 ft.
.TUE NIGHT AND WED...S winds 15 to 20 kt with gusts up to 25 kt.
Seas 2 to 3 ft. Rain.
.WED NIGHT...SW winds 15 to 20 kt with gusts up to 25 kt. Seas
2 to 3 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.

$$

ANZ233-230700-
Vineyard Sound-
105 PM EST Sat Nov 22 2025

.THIS AFTERNOON...N winds 10 to 15 kt. Seas around 2 ft. Wave
Detail: N 1 foot at 3 seconds and E 1 foot at 6 seconds. A slight
chance of rain.
.TONIGHT...N winds 10 to 15 kt. Seas around 2 ft in the evening,
then 1 foot or less. Wave Detail: N 1 foot at 3 seconds and E
1 foot at 7 seconds, becoming N 1 foot at 3 seconds and S 1 foot
at 7 seconds.
.SUN...NW winds around 5 kt, becoming SW in the afternoon. Seas
1 foot or less, then around 2 ft in the afternoon. Wave Detail: N
1 foot at 3 seconds and S 1 foot at 7 seconds, becoming SW 1 foot
at 3 seconds and N 1 foot at 4 seconds.
.SUN NIGHT...W winds 10 to 15 kt, becoming NW 15 to 20 kt after
midnight. Seas 2 to 3 ft. Wave Detail: SW 3 ft at 7 seconds and
SW 2 ft at 4 seconds.
.MON...NW winds 15 to 20 kt, diminishing to 10 to 15 kt in the
afternoon. Seas 2 to 3 ft. Wave Detail: W 3 ft at 5 seconds and N
1 foot at 4 seconds.
.MON NIGHT...W winds 5 to 10 kt. Seas around 2 ft. Wave Detail:
NW 2 ft at 4 seconds and SW 2 ft at 7 seconds.
.TUE...SW winds 10 to 15 kt with gusts up to 20 kt. Seas around
2 ft. A chance of rain.
.TUE NIGHT AND WED...S winds 15 to 20 kt with gusts up to 25 kt.
Seas 2 to 4 ft. Rain.
.WED NIGHT...SW winds 15 to 20 kt with gusts up to 25 kt. Seas
2 to 3 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.

$$

ANZ234-230700-
Buzzards Bay-
105 PM EST Sat Nov 22 2025

.THIS AFTERNOON...N winds around 10 kt. Seas around 2 ft. Wave
Detail: N 1 foot at 3 seconds and E 1 foot at 7 seconds. A slight
chance of rain.
.TONIGHT...N winds 10 to 15 kt, diminishing to 5 to 10 kt after
midnight. Seas around 2 ft in the evening, then 1 foot or less.
Wave Detail: N 1 foot at 3 seconds and E 1 foot at 7 seconds,
becoming N 1 foot at 3 seconds and S 1 foot at 7 seconds.
.SUN...NW winds around 5 kt, becoming SW in the afternoon. Seas
1 foot or less, then around 2 ft in the afternoon. Wave Detail: N
1 foot at 3 seconds and S 1 foot at 7 seconds, becoming SW 1 foot
at 3 seconds and N 1 foot at 4 seconds.
.SUN NIGHT...W winds 10 to 15 kt. Gusts up to 20 kt after
midnight. Seas around 2 ft. Wave Detail: SW 2 ft at 4 seconds and
SW 2 ft at 7 seconds.
.MON...NW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to
3 ft. Wave Detail: N 2 ft at 4 seconds and SW 2 ft at 6 seconds.
.MON NIGHT...W winds 5 to 10 kt. Seas around 2 ft in the evening,
then 1 foot or less. Wave Detail: N 2 ft at 4 seconds and SW
1 foot at 7 seconds, becoming N 1 foot at 4 seconds and W 1 foot
at 5 seconds.
.TUE...SW winds 10 to 15 kt with gusts up to 20 kt. Seas around
2 ft. A chance of rain.
.TUE NIGHT AND WED...S winds 15 to 20 kt, becoming SW 10 to
15 kt. Gusts up to 25 kt. Seas 2 to 4 ft. Rain.
.WED NIGHT...SW winds 15 to 20 kt. Seas 2 to 3 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.

$$

ANZ235-230700-
Rhode Island Sound-
105 PM EST Sat Nov 22 2025

.THIS AFTERNOON...N winds 10 to 15 kt. Seas around 2 ft. Wave
Detail: N 1 foot at 3 seconds and SE 1 foot at 5 seconds.
.TONIGHT...N winds 10 to 15 kt. Seas around 2 ft. Wave Detail: N
2 ft at 3 seconds and SE 1 foot at 5 seconds.
.SUN...NW winds around 5 kt, becoming SW 10 to 15 kt in the
afternoon. Seas 2 to 3 ft. Wave Detail: SW 2 ft at 3 seconds and
SE 2 ft at 8 seconds.
.SUN NIGHT...W winds 10 to 15 kt, becoming NW 15 to 20 kt after
midnight. Seas 2 to 3 ft. Wave Detail: SW 3 ft at 7 seconds and W
2 ft at 4 seconds.
.MON...NW winds 15 to 20 kt, diminishing to 10 to 15 kt in the
afternoon. Seas 2 to 3 ft. Wave Detail: W 3 ft at 5 seconds and E
1 foot at 7 seconds.
.MON NIGHT...NW winds 10 to 15 kt, becoming W 5 to 10 kt after
midnight. Seas 2 to 3 ft. Wave Detail: NW 2 ft at 4 seconds and
SW 1 foot at 7 seconds.
.TUE...SW winds 10 to 15 kt with gusts up to 20 kt. Seas around
2 ft. A chance of rain.
.TUE NIGHT AND WED...SW winds 15 to 20 kt with gusts up to 25 kt.
Seas 2 to 4 ft. Rain.
.WED NIGHT...SW winds 20 to 25 kt. Seas 3 to 4 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.

$$

ANZ237-230700-
Block Island Sound-
105 PM EST Sat Nov 22 2025

.THIS AFTERNOON...N winds 10 to 15 kt. Seas around 2 ft. Wave
Detail: N 1 foot at 3 seconds and S 1 foot at 5 seconds.
.TONIGHT...N winds 10 to 15 kt with gusts up to 20 kt,
diminishing to 5 to 10 kt after midnight. Seas around 2 ft. Wave
Detail: N 2 ft at 3 seconds and E 1 foot at 6 seconds.
.SUN...W winds around 5 kt, becoming SW 10 to 15 kt in the
afternoon. Seas around 2 ft. Wave Detail: W 2 ft at 3 seconds and
SE 2 ft at 7 seconds.
.SUN NIGHT...W winds 10 to 15 kt, becoming NW 15 to 20 kt after
midnight. Gusts up to 25 kt. Seas 2 to 3 ft. Wave Detail: W 2 ft
at 3 seconds and SE 2 ft at 7 seconds.
.MON...NW winds 15 to 20 kt, diminishing to 10 to 15 kt in the
afternoon. Gusts up to 25 kt. Seas 2 to 3 ft. Wave Detail: W 2 ft
at 4 seconds and S 1 foot at 7 seconds.
.MON NIGHT...W winds 5 to 10 kt. Seas around 2 ft. Wave Detail:
NW 2 ft at 3 seconds and SW 1 foot at 7 seconds.
.TUE...SW winds 10 to 15 kt with gusts up to 20 kt. Seas around
2 ft. A chance of rain.
.TUE NIGHT...S winds 15 to 20 kt with gusts up to 25 kt. Seas
2 to 3 ft. Rain.
.WED AND WED NIGHT...SW winds 10 to 15 kt, increasing to 15 to
20 kt. Gusts up to 25 kt. Seas 2 to 4 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.

$$

ANZ230-230700-
Boston Harbor-
105 PM EST Sat Nov 22 2025

.THIS AFTERNOON...NW winds 10 to 15 kt. Waves around 2 ft.
.TONIGHT...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.
.SUN...SW winds 5 to 10 kt. Waves 1 foot or less.
.SUN NIGHT...W winds 5 to 10 kt. Waves 1 foot or less, then
around 2 ft after midnight.
.MON...NW winds 10 to 15 kt with gusts up to 20 kt. Waves around
2 ft.
.MON NIGHT...W winds 5 to 10 kt. Waves 1 foot or less.
.TUE...SW winds 5 to 10 kt. Waves around 2 ft. A chance of rain.
.TUE NIGHT...S winds around 10 kt. Waves around 2 ft. Rain.
.WED AND WED NIGHT...S winds 5 to 10 kt, becoming SW 15 to 20 kt.
Waves 1 foot or less, then around 2 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.

$$

ANZ236-230700-
Narragansett Bay-
105 PM EST Sat Nov 22 2025

.THIS AFTERNOON...NW winds 5 to 10 kt. Waves around 2 ft.
.TONIGHT...N winds 5 to 10 kt. Waves 1 foot or less.
.SUN...W winds 5 to 10 kt. Waves 1 foot or less, then around 2 ft
in the afternoon.
.SUN NIGHT...W winds 5 to 10 kt, becoming NW 10 to 15 kt with
gusts up to 20 kt after midnight. Waves around 2 ft.
.MON...NW winds 10 to 15 kt with gusts up to 20 kt. Waves around
2 ft.
.MON NIGHT...W winds 5 to 10 kt. Waves around 2 ft in the
evening, then 1 foot or less.
.TUE...SW winds 10 to 15 kt with gusts up to 20 kt. Waves around
2 ft. A chance of rain.
.TUE NIGHT...S winds 15 to 20 kt. Waves 2 to 3 ft. Rain.
.WED AND WED NIGHT...SW winds 10 to 15 kt. Gusts up to 20 kt.
Waves 2 to 3 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.

$$

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