715
FZUS54 KLCH 300810
CWFLCH

Coastal Waters Forecast
National Weather Service Lake Charles LA
310 AM CDT Wed Sep 30 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.

GMZ400-302100-
310 AM CDT Wed Sep 30 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...

An increase in winds over the waters led to the issuance of an
Exercise Caution statement. As the cutoff low moves closer to the
coast, winds will increase, making a Small Craft Advisory
increasingly likely. From late Thursday through the weekend,
widespread rain and storms will impact coastal waters, reducing
visibility and causing locally higher winds and waves.

$$

GMZ430-302100-
Sabine Lake-
310 AM CDT Wed Sep 30 2026

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

Winds and waves higher in and near thunderstorms.

$$

GMZ432-302100-
Calcasieu Lake-
310 AM CDT Wed Sep 30 2026

.TODAY...Southeast winds 10 to 15 knots with gusts up to
20 knots, increasing to 15 to 20 knots with gusts up to 25 knots
late. Lake waters rough.
.TONIGHT...Southeast winds 10 to 15 knots with gusts up to
20 knots. Lake waters choppy.
.THURSDAY...Southeast winds 10 to 15 knots, increasing to 15 to
20 knots in the afternoon. Lake waters rough. A slight chance of
showers in the morning, then a chance of showers with a slight
chance of thunderstorms in the afternoon.
.THURSDAY NIGHT...Southeast winds 10 to 15 knots with gusts up to
20 knots. Lake waters choppy. A slight chance of showers in the
evening, then a chance of showers after midnight.
.FRIDAY...East winds 5 to 10 knots. Lake 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. Lake waters light chop.
Showers likely with a chance of thunderstorms in the evening,
then showers likely with a slight chance of thunderstorms after
midnight.
.SATURDAY...East winds 5 to 10 knots. Lake waters light chop.
Showers. 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 slight chance of thunderstorms in the evening.
Showers likely.
.SUNDAY...Northeast winds 10 to 15 knots. Lake waters choppy.
Showers likely with a slight chance of thunderstorms in the
morning, then showers with a chance of thunderstorms in the
afternoon.
.SUNDAY NIGHT...Northeast winds 10 to 15 knots, increasing to
15 to 20 knots after midnight. Lake waters rough. A chance of
showers with a slight chance of thunderstorms.

Winds and waves higher in and near thunderstorms.

$$

GMZ435-302100-
Vermilion and West Cote Blanche Bays-
310 AM CDT Wed Sep 30 2026

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

Winds and waves higher in and near thunderstorms.

$$

GMZ436-302100-
Atchafalaya and East Cote Blanche Bays-
310 AM CDT Wed Sep 30 2026

.TODAY...Southeast winds 5 to 10 knots, increasing to 10 to
15 knots late. Bay waters choppy.
.TONIGHT...Southeast winds 10 to 15 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 chance of
showers. A chance of thunderstorms, mainly in the evening.
.FRIDAY...Southeast winds 5 to 10 knots. Bay waters light chop. A
chance of thunderstorms. Showers.
.FRIDAY NIGHT...East winds 5 to 10 knots. Bay waters light chop.
A chance of thunderstorms. Showers likely.
.SATURDAY...East winds 5 to 10 knots. Bay waters light chop.
Showers with a chance of thunderstorms.
.SATURDAY NIGHT...East winds 5 to 10 knots. Bay waters light
chop. Showers with a chance of thunderstorms in the evening, then
showers with a slight chance of thunderstorms after midnight.
.SUNDAY...Northeast winds 5 to 10 knots. Bay waters light chop.
Showers with a slight chance of thunderstorms in the morning,
then showers with a chance of thunderstorms in the afternoon.
.SUNDAY NIGHT...Northeast winds 5 to 10 knots, increasing to
10 to 15 knots after midnight. Bay waters choppy. A slight chance
of thunderstorms. Showers likely, mainly in the evening.

Winds and waves higher in and near thunderstorms.

$$

GMZ450-302100-
Coastal waters from Cameron LA to High Island TX out 20 NM-
310 AM CDT Wed Sep 30 2026

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

Winds and seas higher in and near thunderstorms.

$$

GMZ452-302100-
Coastal waters from Intracoastal City to Cameron LA out 20 NM-
310 AM CDT Wed Sep 30 2026

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

Winds and seas higher in and near thunderstorms.

$$

GMZ455-302100-
Coastal waters from Lower Atchafalaya River to Intracoastal City
LA out 20 NM-
310 AM CDT Wed Sep 30 2026

.TODAY...Southeast winds 10 to 15 knots. Seas around 2 feet. Wave
Detail: Southeast 2 feet at 3 seconds.
.TONIGHT...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.
.THURSDAY...Southeast winds 10 to 15 knots. Seas 2 to 3 feet.
Wave Detail: Southeast 2 feet at 3 seconds. A chance of showers
with a slight chance of thunderstorms.
.THURSDAY 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 and south 2 feet at 6 seconds. A chance of showers with
a slight chance of thunderstorms.
.FRIDAY...Southeast winds 5 to 10 knots. Seas around 2 feet. Wave
Detail: Southeast 2 feet at 3 seconds and south 2 feet at
6 seconds. A chance of thunderstorms. Showers.
.FRIDAY NIGHT...East winds around 10 knots. Seas around 2 feet.
Wave Detail: Southeast 2 feet at 4 seconds. A chance of
thunderstorms. Showers.
.SATURDAY...East winds 10 to 15 knots, diminishing to 5 to
10 knots in the afternoon. Seas around 2 feet. Showers with a
chance of thunderstorms.
.SATURDAY NIGHT...East winds 5 to 10 knots. Seas around 2 feet.
Showers with a chance of thunderstorms in the evening, then
showers with a slight chance of thunderstorms after midnight.
.SUNDAY...East winds 10 to 15 knots, becoming northeast 5 to
10 knots in the afternoon. Seas around 2 feet. Showers. A slight
chance of thunderstorms in the morning, then a chance of
thunderstorms in the afternoon.
.SUNDAY NIGHT...Northeast winds 10 to 15 knots. Seas around
2 feet. Showers likely with a chance of thunderstorms.

Winds and seas higher in and near thunderstorms.

$$

GMZ470-302100-
Coastal waters from Cameron LA to High Island TX from 20 to 60 NM-
310 AM CDT Wed Sep 30 2026

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

Winds and seas higher in and near thunderstorms.

$$

GMZ472-302100-
Coastal waters from Intracoastal City to Cameron LA from 20 to
60 NM-
310 AM CDT Wed Sep 30 2026

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

Winds and seas higher in and near thunderstorms.

$$

GMZ475-302100-
Coastal waters from Lower Atchafalaya River to Intracoastal City
LA from 20 to 60 NM-
310 AM CDT Wed Sep 30 2026

.TODAY...Southeast winds 10 to 15 knots. Seas 2 to 3 feet. Wave
Detail: Southeast 3 feet at 5 seconds.
.TONIGHT...Southeast winds 15 to 20 knots. Seas 3 to 4 feet. Wave
Detail: Southeast 4 feet at 5 seconds. A slight chance of showers
after midnight.
.THURSDAY...Southeast winds around 15 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 afternoon.
.THURSDAY NIGHT...Southeast winds 15 to 20 knots. Seas 3 to
4 feet. Wave Detail: Southeast 4 feet at 6 seconds. A chance of
showers with a slight chance of thunderstorms in the evening,
then showers likely with a chance of thunderstorms after
midnight.
.FRIDAY...Southeast winds 10 to 15 knots. Seas 3 to 4 feet. Wave
Detail: Southeast 4 feet at 7 seconds. Showers likely with a
chance of thunderstorms.
.FRIDAY NIGHT...Southeast winds 10 to 15 knots. Seas 3 to 5 feet,
occasionally to 6 feet. Wave Detail: Southeast 4 feet at
7 seconds. A chance of thunderstorms. Showers.
.SATURDAY...Southeast winds 10 to 15 knots. Seas 3 to 4 feet.
Showers with a chance of thunderstorms.
.SATURDAY NIGHT...Southeast winds 10 to 15 knots. Seas 3 to
4 feet. Showers with a chance of thunderstorms.
.SUNDAY...East winds around 10 knots. Seas 2 to 4 feet. Showers
with a chance of thunderstorms.
.SUNDAY NIGHT...Northeast winds 10 to 15 knots. Seas 2 to 4 feet.
A chance of thunderstorms. Showers.

Winds and seas higher in and near thunderstorms.

$$