Coastal Waters Forecast
Issued by NWS Boston, MA

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176
FZUS51 KBOX 272004
CWFBOX

Coastal Waters Forecast for Massachusetts and Rhode Island
National Weather Service Boston/Norton MA
404 PM EDT Mon May 27 2024

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

ANZ200-280900-
404 PM EDT Mon May 27 2024

.Synopsis for Massachusetts and Rhode Island coastal waters...
A warm front lifts across the waters today. This will bring
increasing southeasterly winds along with showers and thunderstorms.
The warm front lifts into Maine by early Tue, while a cold front
approaches from the west. The cold front slowly slides into the
waters late on Tue into early Thu. High pres builds in late in the
week.

$$

ANZ250-280900-
Coastal waters east of Ipswich Bay and the Stellwagen Bank
National Marine Sanctuary-
404 PM EDT Mon May 27 2024

...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TUESDAY NIGHT...

.TONIGHT...S winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to
5 ft. Wave Detail: S 4 ft at 4 seconds and SE 4 ft at 8 seconds.
Patchy fog. A chance of rain with a slight chance of tstms this
evening, then rain likely with a chance of tstms after midnight.
Some tstms may produce heavy rainfall. Vsby 1 NM or less.
.TUE...S winds 10 to 15 kt with gusts up to 25 kt. Seas 3 to
5 ft. Wave Detail: S 4 ft at 5 seconds. Patchy fog in the morning
with vsby 1 to 3 NM.
.TUE NIGHT...SW winds 10 to 15 kt. Gusts up to 20 kt in the
evening. Seas 3 to 4 ft. Wave Detail: SE 4 ft at 8 seconds and SW
2 ft at 3 seconds.
.WED...W winds 5 to 10 kt, becoming S in the afternoon. Seas 2 to
4 ft. Wave Detail: SE 4 ft at 8 seconds and SW 1 foot at
3 seconds.
.WED NIGHT...SW winds 5 to 10 kt, becoming NW after midnight.
Seas 2 to 3 ft. Wave Detail: SE 3 ft at 8 seconds and SW 1 foot
at 3 seconds. A chance of showers after midnight.
.THU AND THU NIGHT...N winds around 10 kt. Seas 2 to 3 ft. Wave
Detail: SE 3 ft at 8 seconds and N 2 ft at 3 seconds. A chance of
showers.
.FRI THROUGH SAT NIGHT...SW winds 10 to 15 kt. Seas 2 to 3 ft.

Winds and seas higher in and near tstms.

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.

$$

ANZ251-280900-
Massachusetts Bay and Ipswich Bay-
404 PM EDT Mon May 27 2024

.TONIGHT...S winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to
4 ft. Wave Detail: S 3 ft at 4 seconds and SE 3 ft at 9 seconds.
Patchy fog. Rain likely. Tstms likely this evening, then a chance
of tstms after midnight. Some tstms may produce heavy rainfall.
Vsby 1 NM or less.
.TUE...S winds 10 to 15 kt. Gusts up to 20 kt in the morning.
Seas 2 to 3 ft. Wave Detail: SE 3 ft at 6 seconds and S 1 foot at
3 seconds. Patchy fog in the morning with vsby 1 to 3 NM.
.TUE NIGHT...SW winds 10 to 15 kt, diminishing to 5 to 10 kt
after midnight. Seas 2 to 3 ft. Wave Detail: E 3 ft at 8 seconds
and S 1 foot at 3 seconds.
.WED...W winds 5 to 10 kt, becoming S in the afternoon. Seas 2 to
3 ft. Wave Detail: E 3 ft at 8 seconds and SW 1 foot at
2 seconds.
.WED NIGHT...SW winds 5 to 10 kt, becoming NW after midnight.
Seas around 2 ft. Wave Detail: E 2 ft at 8 seconds and S 1 foot
at 3 seconds. A chance of showers.
.THU AND THU NIGHT...NW winds 5 to 10 kt. Seas around 2 ft. Wave
Detail: E 2 ft at 8 seconds and N 1 foot at 3 seconds. A chance
of showers.
.FRI THROUGH SAT NIGHT...SW winds 5 to 10 kt. Seas around 2 ft.

Winds and seas higher in and near tstms.

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.

$$

ANZ231-280900-
Cape Cod Bay-
404 PM EDT Mon May 27 2024

.TONIGHT...S winds around 15 kt with gusts up to 25 kt. Seas 2 to
3 ft. Wave Detail: SE 3 ft at 8 seconds and S 2 ft at 4 seconds.
Patchy fog. Rain. A chance of tstms this evening, then tstms
likely after midnight. Some tstms may produce heavy rainfall.
Vsby 1 NM or less.
.TUE...S winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to
3 ft. Wave Detail: SE 3 ft at 7 seconds and S 2 ft at 4 seconds.
Patchy fog in the morning with vsby 1 to 3 NM.
.TUE NIGHT...SW 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: SE 2 ft at 7 seconds and S 1 foot at 4 seconds.
.WED...SW winds 5 to 10 kt. Seas around 2 ft. Wave Detail: SE
2 ft at 8 seconds and SW 1 foot at 2 seconds.
.WED NIGHT...W winds 5 to 10 kt. Seas around 2 ft in the evening,
then 1 foot or less. Wave Detail: SE 2 ft at 8 seconds and SW
1 foot at 2 seconds, becoming W 1 foot at 2 seconds and SE 1 foot
at 8 seconds. A chance of showers after midnight.
.THU...N winds 5 to 10 kt. Seas 1 foot or less. Wave Detail: N
1 foot at 2 seconds and SE 1 foot at 8 seconds. A chance of
showers.
.THU NIGHT...N winds 5 to 10 kt. Seas 1 foot or less.
.FRI THROUGH SAT NIGHT...SW winds 5 to 10 kt. Seas 1 foot or
less.

Winds and seas higher in and near tstms.

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.

$$

ANZ254-280900-
Coastal waters from Provincetown MA to Chatham MA to Nantucket MA
out 20 nm-
404 PM EDT Mon May 27 2024

...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TUESDAY NIGHT...

.TONIGHT...S winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to
5 ft. Wave Detail: S 4 ft at 4 seconds and SE 4 ft at 8 seconds.
Patchy fog. A chance of rain with isolated tstms this evening.
Rain likely with a chance of tstms after midnight. Some tstms may
produce heavy rainfall. Vsby 1 NM or less.
.TUE...S winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to
5 ft. Wave Detail: SE 5 ft at 7 seconds and S 1 foot at
4 seconds. Patchy fog. A chance of showers in the morning with
vsby 1 NM or less.
.TUE NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas
3 to 5 ft. Wave Detail: SE 5 ft at 8 seconds and SW 1 foot at
3 seconds. Patchy fog.
.WED...SW winds around 10 kt. Seas 3 to 5 ft. Wave Detail: SE
5 ft at 8 seconds and W 1 foot at 3 seconds. Patchy fog in the
morning.
.WED NIGHT...SW winds 5 to 10 kt. Seas 2 to 4 ft. Wave Detail: SE
4 ft at 8 seconds and W 1 foot at 3 seconds. A chance of showers
after midnight.
.THU...W winds 5 to 10 kt, becoming N in the afternoon. Seas 2 to
3 ft. Wave Detail: SE 3 ft at 8 seconds and NW 1 foot at
2 seconds. A chance of showers.
.THU NIGHT...NW winds 5 to 10 kt. Seas 2 to 3 ft.
.FRI THROUGH SAT NIGHT...NW winds 5 to 10 kt. Seas 2 to 3 ft.

Winds and seas higher in and near tstms.

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.

$$

ANZ255-280900-
Coastal Waters extending out to 25 nm South of Marthas Vineyard
and Nantucket-
404 PM EDT Mon May 27 2024

...SMALL CRAFT ADVISORY IN EFFECT FROM 9 PM EDT THIS EVENING
THROUGH LATE TUESDAY NIGHT...

.TONIGHT...S winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to
4 ft. Wave Detail: S 4 ft at 5 seconds. Patchy dense fog. A
chance of rain with a slight chance of tstms this evening. Rain
with tstms likely after midnight. Some tstms may produce heavy
rainfall. Vsby 1 NM or less.
.TUE...SW winds 15 to 20 kt. Seas 3 to 5 ft. Wave Detail: S 5 ft
at 6 seconds and SW 1 foot at 3 seconds. Patchy fog. Vsby 1 NM or
less in the morning.
.TUE NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas
3 to 5 ft. Wave Detail: S 5 ft at 7 seconds and SW 1 foot at
3 seconds. Patchy fog.
.WED...SW winds 10 to 15 kt. Seas 3 to 5 ft. Wave Detail: S 5 ft
at 8 seconds and W 1 foot at 4 seconds. Patchy fog in the
morning.
.WED NIGHT...SW winds 10 to 15 kt, diminishing to 5 to 10 kt
after midnight. Seas 2 to 4 ft. Wave Detail: S 4 ft at 8 seconds
and SW 1 foot at 3 seconds. A chance of showers after midnight.
.THU...W winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: S 3 ft at
8 seconds and W 1 foot at 4 seconds. A chance of showers.
.THU NIGHT...NW winds around 10 kt. Seas 2 to 3 ft.
.FRI THROUGH SAT NIGHT...NW winds 10 to 15 kt. Seas 2 to 3 ft.

Winds and seas higher in and near tstms.

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.

$$

ANZ256-280900-
Coastal Waters from Montauk NY to Marthas Vineyard extending out
to 20 nm South of Block Island-
404 PM EDT Mon May 27 2024

...SMALL CRAFT ADVISORY IN EFFECT FROM 9 PM EDT THIS EVENING
THROUGH LATE TUESDAY NIGHT...

.TONIGHT...S winds 15 to 20 kt with gusts up to 25 kt. Seas 4 to
5 ft. Wave Detail: S 5 ft at 6 seconds. Patchy dense fog. Rain
with tstms likely. Some tstms may produce heavy rainfall. Vsby
1 NM or less.
.TUE...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to
5 ft. Wave Detail: S 4 ft at 6 seconds. Patchy fog. Vsby 1 NM or
less, increasing to 1 to 3 NM in the afternoon.
.TUE NIGHT...SW winds 10 to 15 kt. Gusts up to 20 kt in the
evening. Seas 3 to 5 ft. Wave Detail: SW 5 ft at 6 seconds.
Patchy fog.
.WED...SW winds around 10 kt. Seas 3 to 5 ft. Wave Detail: S 5 ft
at 8 seconds and W 1 foot at 5 seconds. Patchy fog in the
morning.
.WED NIGHT AND THU...W winds 5 to 10 kt. Seas 2 to 4 ft. Wave
Detail: S 4 ft at 8 seconds and W 1 foot at 3 seconds. A chance
of showers.
.THU NIGHT...NW winds around 10 kt. Seas 2 to 3 ft. Wave Detail:
SE 3 ft at 8 seconds and NW 1 foot at 3 seconds.
.FRI THROUGH SAT NIGHT...SW winds 5 to 10 kt. Seas 2 to 3 ft.

Winds and seas higher in and near tstms.

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.

$$

ANZ232-280900-
Nantucket Sound-
404 PM EDT Mon May 27 2024

...SMALL CRAFT ADVISORY IN EFFECT FROM 9 PM EDT THIS EVENING
THROUGH TUESDAY MORNING...

.TONIGHT...S winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to
4 ft. Wave Detail: S 3 ft at 4 seconds and S 3 ft at 8 seconds.
Patchy fog. A chance of rain with a slight chance of tstms this
evening. Rain with tstms likely after midnight. Some tstms may
produce heavy rainfall. Vsby 1 NM or less.
.TUE...SW winds around 15 kt with gusts up to 20 kt. Seas 2 to
3 ft. Wave Detail: S 3 ft at 5 seconds. Patchy fog in the
morning. A chance of showers in the morning with vsby 1 to 3 NM.
.TUE NIGHT...SW winds 10 to 15 kt. Gusts up to 20 kt in the
evening. Seas 2 to 4 ft. Wave Detail: SW 2 ft at 4 seconds and SE
2 ft at 7 seconds. Patchy fog.
.WED...SW winds 5 to 10 kt, increasing to 10 to 15 kt in the
afternoon. Seas 2 to 3 ft. Wave Detail: SW 2 ft at 3 seconds and
S 2 ft at 8 seconds. Patchy fog in the morning.
.WED NIGHT...SW winds 5 to 10 kt. Seas around 2 ft. Wave Detail:
SW 2 ft at 3 seconds and SE 2 ft at 8 seconds. A chance of
showers after midnight.
.THU...N winds 5 to 10 kt. Seas around 2 ft. Wave Detail: NW
1 foot at 3 seconds and SE 1 foot at 8 seconds. A chance of
showers.
.THU NIGHT...NW winds around 10 kt. Seas around 2 ft in the
evening, then 1 foot or less.
.FRI THROUGH SAT NIGHT...W winds 10 to 15 kt. Seas around 2 ft.

Winds and seas higher in and near tstms.

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.

$$

ANZ233-280900-
Vineyard Sound-
404 PM EDT Mon May 27 2024

...SMALL CRAFT ADVISORY IN EFFECT FROM 9 PM EDT THIS EVENING
THROUGH TUESDAY MORNING...

.TONIGHT...S winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to
3 ft. Wave Detail: S 3 ft at 8 seconds and S 2 ft at 4 seconds.
Patchy fog. Rain with tstms likely. Some tstms may produce heavy
rainfall. Vsby 1 NM or less.
.TUE...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to
3 ft. Wave Detail: S 3 ft at 5 seconds. Patchy fog in the morning
with vsby 1 to 3 NM.
.TUE NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt,
diminishing to 5 to 10 kt after midnight. Seas 2 to 4 ft. Wave
Detail: S 3 ft at 7 seconds and SW 2 ft at 4 seconds. Patchy fog
after midnight.
.WED...W winds 5 to 10 kt, becoming SW 10 to 15 kt in the
afternoon. Seas 2 to 3 ft. Wave Detail: S 2 ft at 7 seconds and
SW 1 foot at 4 seconds.
.WED NIGHT...W winds 5 to 10 kt. Seas around 2 ft. Wave Detail: S
2 ft at 8 seconds and SW 1 foot at 3 seconds. A chance of showers
after midnight.
.THU...NW winds 5 to 10 kt. Seas around 2 ft in the morning, then
1 foot or less. Wave Detail: S 2 ft at 7 seconds and NW 1 foot at
3 seconds, becoming N 1 foot at 3 seconds and S 1 foot at
7 seconds. A chance of showers.
.THU NIGHT...NW winds 5 to 10 kt. Seas 1 foot or less.
.FRI THROUGH SAT NIGHT...SW winds 5 to 10 kt. Seas 1 foot or
less.

Winds and seas higher in and near tstms.

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.

$$

ANZ234-280900-
Buzzards Bay-
404 PM EDT Mon May 27 2024

.TONIGHT...S winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to
3 ft. Wave Detail: S 3 ft at 4 seconds. Patchy fog. Rain with
tstms likely. Some tstms may produce heavy rainfall. Vsby 1 NM or
less.
.TUE...SW winds 10 to 15 kt with gusts up to 20 kt. Seas around
2 ft. Wave Detail: S 2 ft at 4 seconds. Patchy fog in the morning
with vsby 1 to 3 NM.
.TUE NIGHT...SW 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: S 2 ft at 4 seconds and S 2 ft at 7 seconds. Patchy fog
after midnight.
.WED...SW winds 5 to 10 kt, increasing to 10 to 15 kt in the
afternoon. Seas around 2 ft. Wave Detail: SW 2 ft at 3 seconds
and S 2 ft at 7 seconds.
.WED NIGHT...W winds 5 to 10 kt. Seas around 2 ft. Wave Detail: S
2 ft at 8 seconds and SW 1 foot at 3 seconds. A chance of showers
after midnight.
.THU...NW winds 5 to 10 kt. Seas 1 foot or less. Wave Detail: NW
1 foot at 4 seconds and S 1 foot at 7 seconds. A chance of
showers.
.THU NIGHT...NW winds 5 to 10 kt. Seas 1 foot or less.
.FRI THROUGH SAT NIGHT...SW winds 5 to 10 kt. Seas 1 foot or
less.

Winds and seas higher in and near tstms.

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.

$$

ANZ235-280900-
Rhode Island Sound-
404 PM EDT Mon May 27 2024

...SMALL CRAFT ADVISORY IN EFFECT FROM 9 PM EDT THIS EVENING
THROUGH TUESDAY MORNING...

.TONIGHT...S winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to
4 ft. Wave Detail: S 4 ft at 6 seconds. Patchy dense fog this
evening. Patchy fog after midnight. Rain with tstms likely. Some
tstms may produce heavy rainfall. Vsby 1 NM or less.
.TUE...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to
4 ft. Wave Detail: S 4 ft at 6 seconds. Patchy fog in the morning
with vsby 1 NM or less.
.TUE NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt,
diminishing to 5 to 10 kt after midnight. Seas 3 to 5 ft. Wave
Detail: S 4 ft at 7 seconds and SW 1 foot at 4 seconds. Patchy
fog after midnight.
.WED...W winds 5 to 10 kt, becoming SW 10 to 15 kt in the
afternoon. Seas 2 to 4 ft. Wave Detail: S 4 ft at 8 seconds and W
1 foot at 5 seconds.
.WED NIGHT AND THU...W winds 5 to 10 kt. Seas 2 to 3 ft. Wave
Detail: S 3 ft at 8 seconds and SW 1 foot at 3 seconds. A chance
of showers.
.THU NIGHT...NW winds around 10 kt. Seas around 2 ft. Wave
Detail: S 2 ft at 8 seconds and W 1 foot at 3 seconds.
.FRI THROUGH SAT NIGHT...SW winds 5 to 10 kt. Seas around 2 ft.

Winds and seas higher in and near tstms.

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.

$$

ANZ237-280900-
Block Island Sound-
404 PM EDT Mon May 27 2024

...SMALL CRAFT ADVISORY IN EFFECT FROM 9 PM EDT THIS EVENING
THROUGH TUESDAY MORNING...

.TONIGHT...S winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to
4 ft. Wave Detail: S 4 ft at 5 seconds. Patchy dense fog this
evening, then patchy fog after midnight. Rain with tstms likely
this evening, then a chance of rain with isolated tstms after
midnight. Some tstms may produce heavy rainfall. Vsby 1 NM or
less.
.TUE...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to
4 ft. Wave Detail: S 3 ft at 5 seconds and E 1 foot at 5 seconds.
Patchy fog in the morning with vsby 1 to 3 NM.
.TUE NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt,
becoming W 5 to 10 kt after midnight. Seas 2 to 4 ft. Wave
Detail: S 4 ft at 7 seconds and W 1 foot at 3 seconds.
.WED...SW winds 5 to 10 kt. Seas 2 to 4 ft. Wave Detail: S 4 ft
at 8 seconds.
.WED NIGHT AND THU...W winds 5 to 10 kt. Seas 2 to 3 ft. Wave
Detail: SE 3 ft at 8 seconds and W 1 foot at 3 seconds. A chance
of showers.
.THU NIGHT...NW winds around 10 kt. Seas around 2 ft. Wave
Detail: SE 2 ft at 8 seconds and W 1 foot at 3 seconds.
.FRI THROUGH SAT NIGHT...SW winds 5 to 10 kt. Seas around 2 ft.

Winds and seas higher in and near tstms.

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.

$$

ANZ230-280900-
Boston Harbor-
404 PM EDT Mon May 27 2024

.TONIGHT...S winds 10 to 15 kt with gusts up to 20 kt. Waves
around 2 ft. Patchy fog. Rain with tstms likely. Some tstms may
produce heavy rainfall. Vsby 1 to 3 NM, decreasing to 1 NM or
less after midnight.
.TUE...SW winds 10 to 15 kt. Waves around 2 ft. Patchy fog in the
morning with vsby 1 to 3 NM.
.TUE NIGHT...SW winds 5 to 10 kt. Waves around 2 ft.
.WED...W winds 5 to 10 kt, becoming SW in the afternoon. Waves
around 2 ft in the morning, then 1 foot or less.
.WED NIGHT...SW winds 5 to 10 kt, becoming NW after midnight.
Waves 1 foot or less. A chance of showers.
.THU AND THU NIGHT...NW winds 5 to 10 kt. Waves 1 foot or less. A
chance of showers.
.FRI THROUGH SAT NIGHT...SW winds 5 to 10 kt. Waves 1 foot or
less.

Winds and waves higher in and near tstms.

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.

$$

ANZ236-280900-
Narragansett Bay-
404 PM EDT Mon May 27 2024

.TONIGHT...S winds 10 to 15 kt with gusts up to 20 kt. Waves 2 to
3 ft. Patchy fog. Rain. Tstms likely this evening, then a chance
of tstms after midnight. Some tstms may produce heavy rainfall.
Vsby 1 NM or less.
.TUE...SW winds 10 to 15 kt. Waves around 2 ft. Patchy fog in the
morning with vsby 1 to 3 NM.
.TUE NIGHT...SW winds 10 to 15 kt, diminishing to 5 to 10 kt
after midnight. Waves 2 to 3 ft.
.WED...SW winds 5 to 10 kt. Waves 2 to 3 ft.
.WED NIGHT THROUGH THU NIGHT...NW winds 5 to 10 kt. Waves 2 to
3 ft. A chance of showers.
.FRI THROUGH SAT NIGHT...SW winds 5 to 10 kt. Waves around 2 ft.

Winds and waves higher in and near tstms.

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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