762
FZUS54 KLCH 282011
CWFLCH

Coastal Waters Forecast
National Weather Service Lake Charles LA
310 PM CDT Mon Sep 28 2026

Coastal waters from the Lower Atchafalaya River LA to High
Island TX out 60 nautical miles including Sabine and
Calcasieu Lakes and Vermilion and Cote Blanche Bays

Seas are provided as a range of the average height of the
highest one third of the waves, along with the occasional
height of the average highest ten percent of the waves.

GMZ400-290900-
310 PM CDT Mon Sep 28 2026

.Synopsis for Lower Atchafalaya River LA to High Island TX out
60 NM including Sabine and Calcasieu Lakes and Vermilion and Cote
Blanche Bays...

Flow will become onshore starting tonight and remain onshore for
the rest of the week. Low pressure from the Great Plains will move
north of us around midweek, increasing wind speeds. Small Craft
Advisories may be needed on Wednesday and Thursday. In addition,
the onshore flow is aligning with higher-than-usual tides, which
could cause minor coastal flooding during the second half of the
week.

$$

GMZ430-290900-
Sabine Lake-
310 PM CDT Mon Sep 28 2026

.TONIGHT...South winds 5 to 10 knots, becoming southeast late.
Lake waters light chop.
.TUESDAY...Southeast winds 5 to 10 knots, increasing to 10 to
15 knots in the afternoon. Lake waters choppy.
.TUESDAY NIGHT...Southeast winds 10 to 15 knots. Lake waters
choppy. A chance of showers after midnight.
.WEDNESDAY...Southeast winds 10 to 15 knots, increasing to 15 to
20 knots in the afternoon. Lake waters rough. A chance of showers
with a slight chance of thunderstorms.
.WEDNESDAY NIGHT...Southeast winds 15 to 20 knots. Lake waters
rough.
.THURSDAY...Southeast winds 10 to 15 knots with gusts up to
20 knots. Lake waters choppy. A chance of showers with a slight
chance of thunderstorms in the morning, then showers likely with
a chance of thunderstorms in the afternoon.
.THURSDAY NIGHT...Southeast winds 10 to 15 knots. Lake waters
choppy. A chance of showers. A slight chance of thunderstorms in
the evening, then a chance of thunderstorms after midnight.
.FRIDAY...East winds 5 to 10 knots. Lake waters light chop. A
chance of showers with a slight chance of thunderstorms in the
morning, then showers likely with a chance of thunderstorms in
the afternoon.
.FRIDAY NIGHT...East winds 5 to 10 knots. Lake waters light chop.
A slight chance of thunderstorms in the evening. A chance of
showers.
.SATURDAY...Northeast winds 5 to 10 knots. Lake waters light
chop. Showers likely. A slight chance of thunderstorms in the
morning, then a chance of thunderstorms in the afternoon.
.SATURDAY NIGHT...Northeast winds 5 to 10 knots. Lake waters
light chop. A chance of showers with a slight chance of
thunderstorms.

Winds and waves higher in and near thunderstorms.

$$

GMZ432-290900-
Calcasieu Lake-
310 PM CDT Mon Sep 28 2026

.TONIGHT...South winds 5 to 10 knots, becoming southeast late.
Lake waters light chop.
.TUESDAY...East winds 5 to 10 knots, becoming southeast 10 to
15 knots with gusts up to 20 knots in the afternoon. Lake waters
choppy.
.TUESDAY NIGHT...Southeast winds 10 to 15 knots with gusts up to
20 knots. Lake waters choppy. A slight chance of showers after
midnight.
.WEDNESDAY...Southeast winds 10 to 15 knots, increasing to 15 to
20 knots in the afternoon. Lake waters rough. A chance of showers
in the morning, then a slight chance of showers and thunderstorms
in the afternoon.
.WEDNESDAY NIGHT...Southeast winds 15 to 20 knots with gusts up
to 25 knots. Lake waters rough.
.THURSDAY...Southeast winds 10 to 15 knots, increasing to 15 to
20 knots in the afternoon. Lake waters rough. A chance of
showers. A slight chance of thunderstorms in the morning, then a
chance of thunderstorms in the afternoon.
.THURSDAY NIGHT...Southeast winds 10 to 15 knots with gusts up to
20 knots. Lake waters choppy. A chance of showers with a slight
chance of thunderstorms.
.FRIDAY...Southeast winds 5 to 10 knots. Lake waters light chop.
A chance of showers with a slight chance of thunderstorms in the
morning, then showers likely with a chance of thunderstorms in
the afternoon.
.FRIDAY NIGHT...East winds 5 to 10 knots. Lake waters light chop.
A slight chance of thunderstorms. A chance of showers.
.SATURDAY...East winds 5 to 10 knots. Lake waters light chop. A
chance of showers with a slight chance of thunderstorms in the
morning, then showers likely with a chance of thunderstorms in
the afternoon.
.SATURDAY NIGHT...East winds 5 to 10 knots. Lake waters light
chop. A chance of showers with a slight chance of thunderstorms.

Winds and waves higher in and near thunderstorms.

$$

GMZ435-290900-
Vermilion and West Cote Blanche Bays-
310 PM CDT Mon Sep 28 2026

.TONIGHT...South winds 5 to 10 knots. Bay waters light chop.
.TUESDAY...East winds 5 to 10 knots, becoming southeast 10 to
15 knots in the afternoon. Bay waters choppy.
.TUESDAY NIGHT...Southeast winds 10 to 15 knots. Bay waters
choppy.
.WEDNESDAY...Southeast winds 10 to 15 knots. Bay waters choppy.
.WEDNESDAY NIGHT...Southeast winds 15 to 20 knots with gusts up
to 25 knots. Bay waters rough.
.THURSDAY...Southeast winds 10 to 15 knots, increasing to 15 to
20 knots in the afternoon. Bay waters rough. A chance of showers.
A chance of thunderstorms in the afternoon.
.THURSDAY NIGHT...Southeast winds 10 to 15 knots. Bay waters
choppy. A slight chance of showers and thunderstorms in the
evening, then a chance of showers after midnight.
.FRIDAY...Southeast winds around 10 knots. Bay waters light chop.
A chance of showers in the morning, then showers likely with a
chance of thunderstorms in the afternoon.
.FRIDAY NIGHT...East winds 5 to 10 knots. Bay waters light chop.
A chance of showers with a slight chance of thunderstorms.
.SATURDAY...East winds around 10 knots, becoming southeast in the
afternoon. Bay waters light chop. Showers likely. A slight chance
of thunderstorms in the morning, then a chance of thunderstorms
in the afternoon.
.SATURDAY NIGHT...East winds 5 to 10 knots. Bay waters light
chop. A slight chance of thunderstorms. A chance of showers.

Winds and waves higher in and near thunderstorms.

$$

GMZ436-290900-
Atchafalaya and East Cote Blanche Bays-
310 PM CDT Mon Sep 28 2026

.TONIGHT...South winds around 5 knots. Bay waters smooth.
.TUESDAY...Southeast winds 5 to 10 knots. Bay waters light chop.
.TUESDAY NIGHT...Southeast winds 10 to 15 knots, diminishing to
5 to 10 knots after midnight. Bay waters choppy.
.WEDNESDAY...Southeast winds 5 to 10 knots, increasing to 10 to
15 knots in the afternoon. Bay waters choppy.
.WEDNESDAY NIGHT...Southeast winds 10 to 15 knots with gusts up
to 20 knots. Bay waters choppy.
.THURSDAY...Southeast winds 10 to 15 knots. Bay waters choppy. A
chance of showers. A chance of thunderstorms in the afternoon.
.THURSDAY NIGHT...Southeast winds 10 to 15 knots, diminishing to
5 to 10 knots after midnight. Bay waters choppy. A slight chance
of showers and thunderstorms in the evening, then a chance of
showers after midnight.
.FRIDAY...East winds 5 to 10 knots. Bay waters light chop. A
chance of showers with a slight chance of thunderstorms in the
morning, then showers likely with a chance of thunderstorms in
the afternoon.
.FRIDAY NIGHT...East winds 5 to 10 knots. Bay waters light chop.
A chance of showers and thunderstorms.
.SATURDAY...East winds 5 to 10 knots. Bay waters light chop.
Showers likely. A slight chance of thunderstorms in the morning,
then a chance of thunderstorms in the afternoon.
.SATURDAY NIGHT...East winds 5 to 10 knots. Bay waters light
chop. A slight chance of thunderstorms. A chance of showers in
the evening, then showers likely after midnight.

Winds and waves higher in and near thunderstorms.

$$

GMZ450-290900-
Coastal waters from Cameron LA to High Island TX out 20 NM-
310 PM CDT Mon Sep 28 2026

.TONIGHT...Southeast winds around 10 knots. Seas around 2 feet.
Wave Detail: Southeast 2 feet at 3 seconds.
.TUESDAY...Southeast winds 10 to 15 knots. Seas around 2 feet.
Wave Detail: Southeast 2 feet at 4 seconds.
.TUESDAY NIGHT...Southeast winds 15 to 20 knots. Seas 2 to
4 feet. Wave Detail: Southeast 4 feet at 5 seconds. A slight
chance of showers in the evening, then a chance of showers after
midnight.
.WEDNESDAY...Southeast winds 15 to 20 knots. Seas 3 to 4 feet.
Wave Detail: Southeast 4 feet at 5 seconds. A chance of showers
with a slight chance of thunderstorms.
.WEDNESDAY NIGHT...Southeast winds 15 to 20 knots with gusts up
to 25 knots. Seas 3 to 5 feet, occasionally to 6 feet. Wave
Detail: Southeast 5 feet at 6 seconds. A slight chance of
showers. A slight chance of thunderstorms after midnight.
.THURSDAY...Southeast winds 15 to 20 knots with gusts up to
25 knots. Seas 3 to 4 feet. Wave Detail: Southeast 4 feet at
6 seconds. A chance of showers. A slight chance of thunderstorms
in the morning, then a chance of thunderstorms in the afternoon.
.THURSDAY NIGHT...Southeast winds 15 to 20 knots. Seas 3 to
4 feet. A chance of showers. A slight chance of thunderstorms in
the evening, then a chance of thunderstorms after midnight.
.FRIDAY...Southeast winds 10 to 15 knots. Seas 2 to 3 feet.
Showers likely with a slight chance of thunderstorms in the
morning, then showers likely with a chance of thunderstorms in
the afternoon.
.FRIDAY NIGHT...East winds 10 to 15 knots. Seas 2 to 3 feet.
Showers likely with a slight chance of thunderstorms.
.SATURDAY...East winds 10 to 15 knots. Seas 2 to 3 feet. Showers
likely. A slight chance of thunderstorms in the morning, then a
chance of thunderstorms in the afternoon.
.SATURDAY NIGHT...East winds 10 to 15 knots. Seas around 2 feet.
A slight chance of thunderstorms. A chance of showers in the
evening, then showers likely after midnight.

Winds and seas higher in and near thunderstorms.

$$

GMZ452-290900-
Coastal waters from Intracoastal City to Cameron LA out 20 NM-
310 PM CDT Mon Sep 28 2026

.TONIGHT...South winds 5 to 10 knots. Seas 1 foot or less. Wave
Detail: South 1 foot at 3 seconds.
.TUESDAY...Southeast winds 5 to 10 knots, increasing to 10 to
15 knots in the afternoon. Seas around 2 feet. Wave Detail:
Southeast 2 feet at 4 seconds.
.TUESDAY NIGHT...Southeast winds 15 to 20 knots. Seas 2 to
4 feet. Wave Detail: Southeast 4 feet at 5 seconds. A slight
chance of showers after midnight.
.WEDNESDAY...Southeast winds 15 to 20 knots. Seas 2 to 4 feet.
Wave Detail: Southeast 4 feet at 5 seconds. A chance of showers
in the morning, then a slight chance of showers and thunderstorms
in the afternoon.
.WEDNESDAY NIGHT...Southeast winds 15 to 20 knots with gusts up
to 25 knots. Seas 3 to 5 feet, occasionally to 6 feet. Wave
Detail: Southeast 5 feet at 5 seconds. A slight chance of showers
after midnight.
.THURSDAY...Southeast winds 15 to 20 knots with gusts up to
25 knots. Seas 3 to 5 feet, occasionally to 6 feet. Wave Detail:
Southeast 5 feet at 6 seconds. A chance of showers. A slight
chance of thunderstorms in the morning, then a chance of
thunderstorms in the afternoon.
.THURSDAY NIGHT...Southeast winds 15 to 20 knots. Seas 2 to
4 feet. A chance of showers with a slight chance of
thunderstorms.
.FRIDAY...Southeast winds 10 to 15 knots. Seas 2 to 3 feet. A
chance of showers. A slight chance of thunderstorms in the
morning, then a chance of thunderstorms in the afternoon.
.FRIDAY NIGHT...East winds 10 to 15 knots. Seas 2 to 3 feet.
Showers likely with a slight chance of thunderstorms in the
evening, then showers likely with a chance of thunderstorms after
midnight.
.SATURDAY...East winds 10 to 15 knots. Seas 2 to 3 feet. Showers
likely. A slight chance of thunderstorms in the morning, then a
chance of thunderstorms in the afternoon.
.SATURDAY NIGHT...East winds 10 to 15 knots. Seas 2 to 3 feet. A
slight chance of thunderstorms. A chance of showers in the
evening, then showers likely after midnight.

Winds and seas higher in and near thunderstorms.

$$

GMZ455-290900-
Coastal waters from Lower Atchafalaya River to Intracoastal City
LA out 20 NM-
310 PM CDT Mon Sep 28 2026

.TONIGHT...Southeast winds 5 to 10 knots. Seas 1 foot or less.
Wave Detail: South 1 foot at 2 seconds.
.TUESDAY...Southeast winds 5 to 10 knots, increasing to 10 to
15 knots in the afternoon. Seas 1 foot or less, then around
2 feet in the afternoon. Wave Detail: Southeast 1 foot at
3 seconds.
.TUESDAY NIGHT...Southeast winds 10 to 15 knots with gusts up to
20 knots. Seas 2 to 3 feet. Wave Detail: Southeast 2 feet at
3 seconds.
.WEDNESDAY...Southeast winds 10 to 15 knots. Seas around 2 feet.
Wave Detail: Southeast 2 feet at 3 seconds. A slight chance of
showers. A slight chance of thunderstorms in the afternoon.
.WEDNESDAY NIGHT...Southeast winds 15 to 20 knots. Seas 2 to
3 feet. Wave Detail: Southeast 3 feet at 5 seconds. A slight
chance of showers in the evening.
.THURSDAY...Southeast winds 10 to 15 knots with gusts up to
20 knots. Seas 2 to 3 feet. Wave Detail: South 3 feet at
6 seconds and southeast 2 feet at 3 seconds. A chance of showers.
A slight chance of thunderstorms in the morning, then a chance of
thunderstorms in the afternoon.
.THURSDAY NIGHT...Southeast winds 10 to 15 knots with gusts up to
20 knots. Seas 2 to 3 feet. A chance of showers with a slight
chance of thunderstorms.
.FRIDAY...Southeast winds 10 to 15 knots. Seas around 2 feet. A
chance of showers with a slight chance of thunderstorms in the
morning, then showers likely with a chance of thunderstorms in
the afternoon.
.FRIDAY NIGHT...East winds around 10 knots. Seas around 2 feet. A
chance of thunderstorms. A chance of showers in the evening, then
showers likely after midnight.
.SATURDAY...East winds 10 to 15 knots. Seas around 2 feet.
Showers likely with a chance of thunderstorms.
.SATURDAY NIGHT...East winds around 10 knots. Seas around 2 feet.
A slight chance of thunderstorms. A chance of showers in the
evening, then showers likely after midnight.

Winds and seas higher in and near thunderstorms.

$$

GMZ470-290900-
Coastal waters from Cameron LA to High Island TX from 20 to 60 NM-
310 PM CDT Mon Sep 28 2026

.TONIGHT...Southeast winds 10 to 15 knots. Seas around 2 feet.
Wave Detail: Southeast 2 feet at 4 seconds.
.TUESDAY...Southeast winds 10 to 15 knots. Seas around 2 feet.
Wave Detail: Southeast 2 feet at 4 seconds.
.TUESDAY NIGHT...Southeast winds 15 to 20 knots with gusts up to
25 knots. Seas 3 to 4 feet. Wave Detail: Southeast 4 feet at
5 seconds. A chance of showers after midnight.
.WEDNESDAY...Southeast winds 15 to 20 knots with gusts up to
25 knots. Seas 3 to 4 feet. Wave Detail: Southeast 4 feet at
5 seconds. A chance of showers with a slight chance of
thunderstorms.
.WEDNESDAY NIGHT...Southeast winds 15 to 20 knots with gusts up
to 25 knots. Seas 4 to 6 feet, occasionally to 8 feet. Wave
Detail: South 6 feet at 6 seconds.
.THURSDAY...Southeast winds 15 to 20 knots with gusts up to
25 knots. Seas 4 to 6 feet, occasionally to 8 feet. Wave Detail:
Southeast 6 feet at 7 seconds. A slight chance of showers and
thunderstorms in the morning, then a chance of showers and
thunderstorms in the afternoon.
.THURSDAY NIGHT...Southeast winds around 15 knots with gusts up
to 25 knots. Seas 4 to 5 feet, occasionally to 6 feet. A chance
of showers with a slight chance of thunderstorms.
.FRIDAY...Southeast winds 10 to 15 knots. Seas 3 to 4 feet. A
chance of showers. A slight chance of thunderstorms in the
morning, then a chance of thunderstorms in the afternoon.
.FRIDAY NIGHT...East winds 10 to 15 knots. Seas around 3 feet.
Showers likely with a slight chance of thunderstorms.
.SATURDAY...East winds 10 to 15 knots. Seas around 3 feet.
Showers likely. A slight chance of thunderstorms in the morning,
then a chance of thunderstorms in the afternoon.
.SATURDAY NIGHT...East winds 10 to 15 knots. Seas around 3 feet.
Showers likely in the evening, then showers likely with a slight
chance of thunderstorms after midnight.

Winds and seas higher in and near thunderstorms.

$$

GMZ472-290900-
Coastal waters from Intracoastal City to Cameron LA from 20 to
60 NM-
310 PM CDT Mon Sep 28 2026

.TONIGHT...Southeast winds 5 to 10 knots. Seas around 2 feet.
Wave Detail: Southeast 2 feet at 3 seconds.
.TUESDAY...Southeast winds 10 to 15 knots. Seas around 2 feet.
Wave Detail: Southeast 2 feet at 4 seconds.
.TUESDAY NIGHT...Southeast winds 15 to 20 knots. Seas 2 to
4 feet. Wave Detail: Southeast 4 feet at 5 seconds. A slight
chance of showers after midnight.
.WEDNESDAY...Southeast winds 15 to 20 knots. Seas 3 to 4 feet.
Wave Detail: Southeast 4 feet at 5 seconds. A chance of showers
with a slight chance of thunderstorms.
.WEDNESDAY NIGHT...Southeast winds 15 to 20 knots with gusts up
to 25 knots. Seas 3 to 5 feet, occasionally to 6 feet, building
to 5 to 6 feet, occasionally to 8 feet after midnight. Wave
Detail: Southeast 5 feet at 6 seconds, becoming southeast 6 feet
at 6 seconds. A slight chance of showers after midnight.
.THURSDAY...Southeast winds 15 to 20 knots with gusts up to
25 knots. Seas 4 to 6 feet, occasionally to 8 feet. Wave Detail:
Southeast 6 feet at 7 seconds. A chance of showers. A slight
chance of thunderstorms in the morning, then a chance of
thunderstorms in the afternoon.
.THURSDAY NIGHT...Southeast winds 15 to 20 knots with gusts up to
25 knots. Seas 4 to 5 feet, occasionally to 6 feet. A chance of
showers with a slight chance of thunderstorms.
.FRIDAY...Southeast winds around 15 knots, becoming east in the
afternoon. Seas 3 to 4 feet. A chance of showers. A slight chance
of thunderstorms in the morning, then a chance of thunderstorms
in the afternoon.
.FRIDAY NIGHT...East winds 10 to 15 knots. Seas 3 to 4 feet. A
chance of thunderstorms. A chance of showers in the evening, then
showers likely after midnight.
.SATURDAY...East winds 10 to 15 knots. Seas 3 to 4 feet. Showers
likely. A chance of thunderstorms, mainly in the morning.
.SATURDAY NIGHT...East winds 10 to 15 knots. Seas 3 to 4 feet. A
chance of showers in the evening, then showers likely with a
slight chance of thunderstorms after midnight.

Winds and seas higher in and near thunderstorms.

$$

GMZ475-290900-
Coastal waters from Lower Atchafalaya River to Intracoastal City
LA from 20 to 60 NM-
310 PM CDT Mon Sep 28 2026

.TONIGHT...Southeast winds 5 to 10 knots. Seas 1 foot or less,
then around 2 feet after midnight. Wave Detail: Southeast 1 foot
at 3 seconds, becoming southeast 1 foot at 4 seconds.
.TUESDAY...Southeast winds 10 to 15 knots. Seas 1 foot or less,
then around 2 feet in the afternoon. Wave Detail: Southeast
1 foot at 4 seconds, becoming southeast 2 feet at 4 seconds. A
slight chance of showers in the afternoon.
.TUESDAY NIGHT...Southeast winds 15 to 20 knots. Seas 2 to
4 feet. Wave Detail: Southeast 4 feet at 5 seconds.
.WEDNESDAY...Southeast winds around 15 knots. Seas around 3 feet.
Wave Detail: Southeast 3 feet at 5 seconds. A slight chance of
showers in the morning, then a chance of showers with a slight
chance of thunderstorms in the afternoon.
.WEDNESDAY NIGHT...Southeast winds 15 to 20 knots with gusts up
to 25 knots. Seas 3 to 5 feet, occasionally to 6 feet. Wave
Detail: Southeast 5 feet at 6 seconds. A slight chance of showers
in the evening.
.THURSDAY...Southeast winds 15 to 20 knots. Seas 4 to 5 feet,
occasionally to 6 feet. Wave Detail: Southeast 5 feet at
7 seconds. A chance of showers with a slight chance of
thunderstorms.
.THURSDAY NIGHT...Southeast winds 15 to 20 knots. Seas 3 to
5 feet, occasionally to 6 feet. A chance of showers with a slight
chance of thunderstorms.
.FRIDAY...East winds 10 to 15 knots. Seas 3 to 4 feet. Showers
likely. A slight chance of thunderstorms in the morning, then a
chance of thunderstorms in the afternoon.
.FRIDAY NIGHT...Southeast winds 10 to 15 knots. Seas 3 to 5 feet,
occasionally to 6 feet. A chance of thunderstorms. A chance of
showers in the evening, then showers likely after midnight.
.SATURDAY...Southeast winds 10 to 15 knots. Seas 3 to 5 feet,
occasionally to 6 feet. Showers likely with a chance of
thunderstorms.
.SATURDAY NIGHT...Southeast winds 10 to 15 knots. Seas 3 to
4 feet. A slight chance of thunderstorms. A chance of showers in
the evening, then showers likely after midnight.

Winds and seas higher in and near thunderstorms.

$$