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Southampton, NY Coastal Forecast

FZUS51 KOKX 181017
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Coastal Waters Forecast
National Weather Service New York NY
517 AM EST Thu Dec 18 2025

Montauk Point NY to Sandy Hook NJ out 20 nm offshore, including
Long Island Sound, the Long Island Bays, and New York Harbor

ANZ300-182100-
517 AM EST Thu Dec 18 2025

.Synopsis for the Long Island and Connecticut coastal waters...
High pressure moves off the northeast and mid Atlantic coast today
as a frontal system approaches from the west. A strong cold front
approaches tonight as deep surface low pressure moves through the
eastern Great Lakes and into southern Canada. The cold front moves
through the area Friday morning. High pressure then briefly
builds in for the start of the weekend. A warm front passes on
Saturday followed by a cold front late Saturday night into
Sunday. A secondary cold front passes Sunday night. High pressure
returns Monday.

$$

ANZ350-182100-
Moriches Inlet NY to Montauk Point NY out 20 nm-
517 AM EST Thu Dec 18 2025

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

.TODAY...NW winds around 5 kt, becoming NE early this morning,
then becoming SE late this morning, increasing to 10 to 15 kt
with gusts up to 20 kt this afternoon. Seas 3 to 4 ft,
occasionally to 5 ft. Wave Detail: S 4 ft at 7 seconds and SE
1 ft at 10 seconds.
.TONIGHT...S winds 15 to 20 kt with gusts up to 25 kt, increasing
to 25 to 35 kt after midnight. Seas 4 to 5 ft, occasionally to
6 ft, building to 7 to 10 ft, occasionally to 13 ft after
midnight. Wave Detail: S 5 ft at 7 seconds and SE 1 ft at
10 seconds, becoming S 10 ft at 7 seconds and SE 1 ft at
10 seconds. Slight chance of showers in the evening, then showers
after midnight with vsby 1 to 3 nm.
.FRI...S winds 35 to 45 kt, becoming SW 30 to 40 kt in the
afternoon. Seas 12 to 17 ft, occasionally to 22 ft. Wave Detail:
S 17 ft at 9 seconds. Showers and slight chance of tstms in the
morning, then chance of showers in the afternoon. Vsby 1 to 3 nm.
.FRI NIGHT...W winds 30 to 40 kt. Seas 12 to 15 ft, occasionally
to 19 ft, subsiding to 10 to 14 ft, occasionally to 18 ft after
midnight. Wave Detail: S 13 ft at 10 seconds and W 12 ft at
8 seconds, becoming W 12 ft at 8 seconds and S 8 ft at
10 seconds.
.SAT...W winds 20 to 25 kt with gusts up to 30 kt, diminishing to
15 to 20 kt in the afternoon. Seas 7 to 10 ft, occasionally to
13 ft, subsiding to 5 to 7 ft, occasionally to 9 ft in the
afternoon. Wave Detail: W 8 ft at 7 seconds and S 6 ft at
10 seconds, becoming S 5 ft at 10 seconds and W 4 ft at
5 seconds.
.SAT NIGHT...SW winds 25 to 30 kt. Seas 5 to 8 ft, occasionally
to 10 ft, building to 8 to 11 ft, occasionally to 14 ft after
midnight.
.SUN...W winds 25 to 30 kt. Seas 7 to 10 ft, occasionally to
13 ft.
.SUN NIGHT...NW winds 25 to 30 kt. Seas 6 to 9 ft, occasionally
to 11 ft.
.MON...NW winds 25 to 30 kt. Seas 5 to 7 ft, occasionally to
9 ft.
.MON NIGHT...NW winds 15 to 20 kt with gusts up to 25 kt. Seas
2 to 4 ft, occasionally to 5 ft.

Winds and seas may be higher in and near tstms.

$$

ANZ353-182100-
Fire Island Inlet NY to Moriches Inlet NY out 20 nm-
517 AM EST Thu Dec 18 2025

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

.TODAY...N winds around 5 kt, becoming E this morning, then
becoming SE 10 to 15 kt with gusts up to 20 kt this afternoon.
Seas 2 to 4 ft, occasionally to 5 ft. Wave Detail: S 3 ft at
7 seconds and S 2 ft at 3 seconds.
.TONIGHT...S winds 15 to 20 kt with gusts up to 25 kt, increasing
to 25 to 35 kt after midnight. Seas 3 to 5 ft, occasionally to
6 ft, building to 7 to 10 ft, occasionally to 13 ft after
midnight. Wave Detail: S 4 ft at 6 seconds and SE 1 ft at
10 seconds, becoming S 10 ft at 7 seconds and SE 1 ft at
10 seconds. Chance of showers in the evening, then showers after
midnight with vsby 1 to 3 nm.
.FRI...S winds 35 to 40 kt, becoming W 30 to 35 kt in the
afternoon. Seas 12 to 16 ft, occasionally to 20 ft. Wave Detail:
S 16 ft at 9 seconds. Showers and slight chance of tstms in the
morning, then chance of showers in the afternoon. Vsby 1 to 3 nm
in the morning.
.FRI NIGHT...W winds 35 to 40 kt, diminishing to 25 to 35 kt
after midnight. Seas 11 to 14 ft, occasionally to 18 ft,
subsiding to 9 to 13 ft, occasionally to 17 ft after midnight.
Wave Detail: W 10 ft at 7 seconds and S 9 ft at 10 seconds,
becoming W 10 ft at 7 seconds and S 7 ft at 10 seconds.
.SAT...W winds 20 to 25 kt, diminishing to 15 to 20 kt in the
afternoon. Seas 6 to 9 ft, occasionally to 11 ft, subsiding to
4 to 6 ft, occasionally to 8 ft in the afternoon. Wave Detail: W
6 ft at 6 seconds and S 5 ft at 10 seconds, becoming W 4 ft at
5 seconds and SE 4 ft at 10 seconds.
.SAT NIGHT...SW winds 20 to 25 kt, increasing to 25 to 30 kt
after midnight. Seas 5 to 8 ft, occasionally to 10 ft, building
to 7 to 9 ft, occasionally to 11 ft after midnight.
.SUN...W winds 25 to 30 kt. Seas 6 to 9 ft, occasionally to
11 ft.
.SUN NIGHT...NW winds 25 to 30 kt. Seas 5 to 8 ft, occasionally
to 10 ft.
.MON...NW winds 20 to 25 kt with gusts up to 30 kt. Seas 4 to
6 ft, occasionally to 8 ft.
.MON NIGHT...NW winds 10 to 15 kt with gusts up to 20 kt. Seas
2 to 4 ft, occasionally to 5 ft.

Winds and seas may be higher in and near tstms.

$$

ANZ355-182100-
Sandy Hook NJ to Fire Island Inlet NY out 20 nm-
517 AM EST Thu Dec 18 2025

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

.TODAY...N winds around 5 kt, becoming E early this morning, then
becoming SE late this morning, increasing to 10 to 15 kt with
gusts up to 20 kt this afternoon. Seas 2 to 3 ft. Wave Detail: S
3 ft at 7 seconds and S 2 ft at 3 seconds.
.TONIGHT...S winds 15 to 20 kt with gusts up to 25 kt, increasing
to 30 to 40 kt after midnight. Seas 3 to 4 ft, occasionally to
5 ft, building to 6 to 9 ft, occasionally to 11 ft after
midnight. Wave Detail: S 4 ft at 5 seconds and SE 1 ft at
10 seconds, becoming S 9 ft at 7 seconds and SE 1 ft at
10 seconds. Chance of showers in the evening, then showers after
midnight with vsby 1 to 3 nm.
.FRI...S winds 30 to 40 kt, becoming W 25 to 35 kt in the
afternoon. Seas 10 to 14 ft, occasionally to 18 ft, subsiding to
9 to 12 ft, occasionally to 15 ft in the afternoon. Wave Detail:
S 13 ft at 8 seconds, becoming S 11 ft at 9 seconds and W 6 ft at
5 seconds. Showers and slight chance of tstms in the morning,
then slight chance of showers in the afternoon. Vsby 1 to 3 nm.
.FRI NIGHT...W winds 30 to 35 kt, diminishing to 25 to 30 kt
after midnight. Seas 9 to 12 ft, occasionally to 15 ft, subsiding
to 7 to 10 ft, occasionally to 13 ft after midnight. Wave Detail:
W 8 ft at 5 seconds and S 8 ft at 10 seconds, becoming W 7 ft at
5 seconds and SE 6 ft at 10 seconds.
.SAT...W winds 15 to 20 kt with gusts up to 25 kt. Seas 5 to
7 ft, occasionally to 9 ft, subsiding to 3 to 5 ft, occasionally
to 6 ft in the afternoon. Wave Detail: W 5 ft at 5 seconds and SE
5 ft at 10 seconds, becoming W 3 ft at 4 seconds and SE 3 ft at
10 seconds.
.SAT NIGHT...SW winds 20 to 25 kt with gusts up to 30 kt. Seas
5 to 7 ft, occasionally to 9 ft.
.SUN...W winds 20 to 25 kt with gusts up to 30 kt. Seas 5 to
7 ft, occasionally to 9 ft.
.SUN NIGHT...NW winds 20 to 25 kt with gusts up to 30 kt. Seas
5 to 7 ft, occasionally to 9 ft.
.MON...NW winds 20 to 25 kt. Seas 4 to 6 ft, occasionally to
8 ft.
.MON NIGHT...NW winds 10 to 15 kt with gusts up to 20 kt. Seas
2 to 3 ft.

Winds and seas may be higher in and near tstms.

$$

ANZ332-182100-
Long Island Sound East of the Mouth of the Connecticut River-
517 AM EST Thu Dec 18 2025

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

.TODAY...W winds around 5 kt, becoming SE late this morning and
afternoon. Seas around 2 ft early, then 1 ft or less, then, then
around 2 ft this afternoon. Wave Detail: W 1 ft at 4 seconds,
then Wave Detail: SE 1 ft at 3 seconds.
.TONIGHT...SE winds 15 to 20 kt with gusts up to 25 kt, becoming
S 25 to 30 kt after midnight. Seas 2 to 3 ft, building to 3 to
5 ft, occasionally to 6 ft after midnight. Wave Detail: SE 2 ft
at 3 seconds, becoming SE 3 ft at 4 seconds. Slight chance of
showers in the evening, then showers after midnight with vsby
1 to 3 nm.
.FRI...S winds 30 to 35 kt, becoming SW 25 to 30 kt in the
afternoon. Seas 5 to 7 ft, occasionally to 9 ft. Wave Detail: SW
5 ft at 4 seconds and E 5 ft at 8 seconds. Showers and slight
chance of tstms in the morning, then showers likely in the
afternoon. Vsby 1 to 3 nm.
.FRI NIGHT...W winds 25 to 35 kt. Seas 5 to 7 ft, occasionally to
9 ft. Wave Detail: W 6 ft at 4 seconds and E 4 ft at 11 seconds.
.SAT...W winds 15 to 20 kt, diminishing to 10 to 15 kt in the
afternoon. Seas 3 to 5 ft, occasionally to 6 ft. Wave Detail: W
4 ft at 4 seconds and E 2 ft at 10 seconds.
.SAT NIGHT...SW winds 20 to 25 kt with gusts up to 30 kt. Seas
3 to 5 ft, occasionally to 6 ft.
.SUN...W winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to
5 ft, occasionally to 6 ft.
.SUN NIGHT...NW winds 20 to 25 kt with gusts up to 30 kt. Seas
2 to 4 ft, occasionally to 5 ft.
.MON...NW winds 20 to 25 kt. Seas 2 to 4 ft, occasionally to
5 ft.
.MON NIGHT...NW winds 10 to 15 kt with gusts up to 20 kt. Seas
2 to 3 ft.

Winds and seas may be higher in and near tstms.

$$

ANZ331-182100-
Long Island Sound East of New Haven CT/Port Jefferson NY to the
Mouth of the Connecticut River-
517 AM EST Thu Dec 18 2025

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

.TODAY...SW winds around 5 kt, becoming SE around 5 kt this
morning, then increasing to around 10 kt this afternoon. Seas
1 ft or less. Wave Detail: SE 1 ft at 2 seconds and W 1 ft at
3 seconds.
.TONIGHT...SE winds 10 to 15 kt with gusts up to 20 kt, becoming
S 25 to 30 kt after midnight. Seas 2 to 4 ft, occasionally to
5 ft. Wave Detail: S 3 ft at 4 seconds. Chance of showers in the
evening, then showers after midnight with vsby 1 to 3 nm.
.FRI...S winds 30 to 35 kt, becoming SW 25 to 30 kt in the
afternoon. Seas 4 to 6 ft, occasionally to 8 ft. Wave Detail: SW
6 ft at 5 seconds. Showers and slight chance of tstms in the
morning, then chance of showers in the afternoon. Vsby 1 to 3 nm.
.FRI NIGHT...W winds 30 to 35 kt, diminishing to 25 to 30 kt
after midnight. Seas 5 to 8 ft, occasionally to 10 ft.
.SAT...W winds 15 to 20 kt, diminishing to 10 to 15 kt in the
afternoon. Seas 3 to 5 ft, occasionally to 6 ft, subsiding to
2 ft in the afternoon. Wave Detail: W 5 ft at 5 seconds, becoming
W 2 ft at 4 seconds.
.SAT NIGHT...SW winds 15 to 20 kt, increasing to 20 to 25 kt
after midnight. Seas 2 to 4 ft, occasionally to 5 ft.
.SUN...W winds 20 to 25 kt. Seas 3 to 4 ft, occasionally to 5 ft.
.SUN NIGHT...NW winds 25 to 30 kt. Seas 3 to 5 ft, occasionally
to 6 ft.
.MON...NW winds 20 to 25 kt. Seas 2 to 4 ft, occasionally to
5 ft.
.MON NIGHT...NW winds 10 to 15 kt. Seas around 2 ft.

Winds and seas may be higher in and near tstms.

$$

ANZ335-182100-
Long Island Sound West of New Haven CT/Port Jefferson NY-
517 AM EST Thu Dec 18 2025

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

.TODAY...W winds around 5 kt, becoming E this morning, then
becoming SE this afternoon. Seas 1 ft or less.
.TONIGHT...SE winds 10 to 15 kt with gusts up to 20 kt, becoming
S 30 to 35 kt after midnight. Seas 1 ft or less, then 2 to 4 ft,
occasionally to 5 ft after midnight. Wave Detail: SE 1 ft at
2 seconds, becoming S 3 ft at 3 seconds. Chance of showers in the
evening, then showers after midnight with vsby 1 to 3 nm.
.FRI...S winds 30 to 40 kt, becoming W 25 to 30 kt in the
afternoon. Seas 3 to 5 ft, occasionally to 6 ft. Wave Detail: W
4 ft at 4 seconds. Showers and slight chance of tstms in the
morning, then slight chance of showers in the afternoon. Vsby
1 to 3 nm.
.FRI NIGHT...W winds 25 to 35 kt. Seas 3 to 5 ft, occasionally to
6 ft. Wave Detail: W 5 ft at 3 seconds.
.SAT...W winds 15 to 20 kt, becoming SW 10 to 15 kt in the
afternoon. Seas 2 to 4 ft, occasionally to 5 ft. Wave Detail: W
3 ft at 4 seconds.
.SAT NIGHT...SW winds 15 to 20 kt, increasing to 20 to 25 kt
after midnight. Seas 2 to 3 ft.
.SUN...W winds 20 to 25 kt. Seas 2 to 4 ft, occasionally to 5 ft.
.SUN NIGHT...NW winds 25 to 30 kt. Seas 2 to 4 ft, occasionally
to 5 ft.
.MON...NW winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to
3 ft.
.MON NIGHT...NW winds 10 to 15 kt. Seas 1 to 2 ft.

Winds and seas may be higher in and near tstms.

$$

ANZ338-182100-
New York Harbor-
517 AM EST Thu Dec 18 2025

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

.TODAY...NW winds around 5 kt, becoming E around 5 kt this
morning, then becoming SE this afternoon. Waves 1 ft or less.
.TONIGHT...SE winds 15 to 20 kt, becoming S 25 to 35 kt after
midnight. Waves 1 to 2 ft, building to 2 to 4 ft, occasionally to
5 ft after midnight. Wave Detail: SE 1 ft at 2 seconds, becoming
SE 3 ft at 2 seconds. Chance of showers in the evening, then
showers after midnight with vsby 1 to 3 nm.
.FRI...S winds 25 to 35 kt with gusts up to 45 kt, becoming W
25 to 30 kt in the afternoon. Waves 3 to 5 ft, occasionally to
6 ft. Wave Detail: W 3 ft at 3 seconds. Showers and slight chance
of tstms in the morning, then slight chance of rain and snow
showers in the afternoon. Vsby 1 to 3 nm.
.FRI NIGHT...W winds 25 to 30 kt. Waves 2 to 4 ft, occasionally
to 5 ft. Wave Detail: W 3 ft at 3 seconds.
.SAT...W winds 15 to 20 kt, becoming SW around 10 kt in the
afternoon. Waves 2 to 3 ft. Wave Detail: W 2 ft at 2 seconds.
.SAT NIGHT...SW winds 15 to 20 kt with gusts up to 25 kt. Waves
2 to 3 ft.
.SUN...W winds 15 to 20 kt with gusts up to 30 kt. Waves 2 to
3 ft.
.SUN NIGHT...NW winds 20 to 25 kt. Waves 2 to 3 ft.
.MON...NW winds 15 to 20 kt with gusts up to 25 kt. Waves around
2 ft.
.MON NIGHT...W winds 10 to 15 kt. Waves 1 to 2 ft.

Winds and waves may be higher in and near tstms.

$$

ANZ340-182100-
Peconic and Gardiners Bays-
517 AM EST Thu Dec 18 2025

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

.TODAY...SW winds around 5 kt, becoming SE around 5 kt late this
morning, then increasing to around 10 kt this afternoon. Waves
1 ft or less.
.TONIGHT...S winds 10 to 15 kt with gusts up to 20 kt, increasing
to 25 to 30 kt after midnight. Waves 1 ft or less, then 1 to 2 ft
after midnight. Slight chance of showers in the evening, then
showers after midnight with vsby 1 to 3 nm.
.FRI...S winds 25 to 35 kt with gusts up to 45 kt, becoming SW
25 to 30 kt in the afternoon. Waves 2 to 3 ft. Showers and slight
chance of tstms in the morning, then showers likely in the
afternoon. Vsby 1 to 3 nm.
.FRI NIGHT...W winds 25 to 30 kt. Waves 2 to 4 ft.
.SAT...W winds 15 to 20 kt, diminishing to 10 to 15 kt in the
afternoon. Waves 2 to 3 ft, subsiding to 1 to 2 ft in the
afternoon.
.SAT NIGHT...SW winds 15 to 20 kt with gusts up to 25 kt. Waves
around 2 ft.
.SUN...W winds 15 to 20 kt with gusts up to 25 kt. Waves around
2 ft.
.SUN NIGHT...NW winds 20 to 25 kt. Waves 2 to 3 ft.
.MON...NW winds 20 to 25 kt. Waves around 2 ft.
.MON NIGHT...NW winds 10 to 15 kt with gusts up to 20 kt. Waves
1 to 2 ft.

Winds and waves may be higher in and near tstms.

$$

ANZ345-182100-
South Shore Bays from Jones Inlet through Shinnecock Bay-
517 AM EST Thu Dec 18 2025

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

.TODAY...Light and variable winds, becoming NE around 5 kt early
this morning, then becoming SE late this morning and afternoon.
Waves 1 ft or less.
.TONIGHT...S winds 15 to 20 kt with gusts up to 25 kt, increasing
to 30 to 35 kt after midnight. Waves 1 ft or less, then around
2 ft after midnight. Chance of showers in the evening, then
showers after midnight with vsby 1 to 3 nm.
.FRI...S winds 30 to 40 kt, becoming W 25 to 30 kt in the
afternoon. Waves 2 to 3 ft. Showers and slight chance of tstms in
the morning, then slight chance of showers in the afternoon. Vsby
1 to 3 nm.
.FRI NIGHT...W winds 25 to 35 kt. Waves around 2 ft.
.SAT...W winds 15 to 20 kt, diminishing to 10 to 15 kt in the
afternoon. Waves 1 ft or less.
.SAT NIGHT...SW winds 20 to 25 kt. Waves 1 to 2 ft.
.SUN...W winds 20 to 25 kt with gusts up to 30 kt. Waves around
2 ft.
.SUN NIGHT...NW winds 20 to 25 kt with gusts up to 30 kt. Waves
1 to 2 ft.
.MON...NW winds 15 to 20 kt with gusts up to 25 kt. Waves 1 ft or
less.
.MON NIGHT...NW winds 10 to 15 kt. Waves 1 ft or less.

Winds and waves may be higher in and near tstms.

$$


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