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FZUS54 KLCH 101751
CWFLCH

Coastal Waters Forecast
National Weather Service Lake Charles LA
1250 PM CDT Wed Sep 10 2025

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.

GMZ400-110600-
1250 PM CDT Wed Sep 10 2025

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

Surface high over the eastern US will ridging down from the
northeast into the northern Gulf. Meanwhile, a stalled frontal
boundary and lower pressures will be found over the middle Gulf.
Interaction between these features will allow for a light to
modest easterly flow for the remainder of the week into the
weekend along with light to modest seas. Drier air aloft will also
continue to move over the northern Gulf that will keep any
significant shower activity out of the forecast.

$$

GMZ430-110600-
Sabine Lake-
1250 PM CDT Wed Sep 10 2025

.TONIGHT...Southeast winds around 5 knots. Lake waters smooth.
.THURSDAY...East winds 5 to 10 knots. Lake waters light chop.
.THURSDAY NIGHT...Southeast winds around 5 knots. Lake waters
smooth.
.FRIDAY...Northeast winds around 5 knots, becoming southeast in
the afternoon. Lake waters smooth.
.FRIDAY NIGHT...South winds around 5 knots, becoming west around
5 knots after midnight. Lake waters smooth.
.SATURDAY...North winds around 5 knots, becoming southeast in the
afternoon. Lake waters smooth.
.SATURDAY NIGHT...Southwest winds around 5 knots. Lake waters
smooth.
.SUNDAY...North winds around 5 knots, becoming southeast in the
afternoon. Lake waters light chop.
.SUNDAY NIGHT...Southeast winds 5 to 10 knots. Lake waters light
chop.
.MONDAY...East winds 5 to 10 knots. Lake waters light chop.
.MONDAY NIGHT...South winds 5 to 10 knots, becoming east after
midnight. Lake waters light chop.

$$

GMZ432-110600-
Calcasieu Lake-
1250 PM CDT Wed Sep 10 2025

.TONIGHT...Southeast winds around 5 knots. Lake waters smooth.
.THURSDAY...East winds 5 to 10 knots. Lake waters light chop.
.THURSDAY NIGHT...Southeast winds around 5 knots. Lake waters
smooth.
.FRIDAY...Northeast winds around 5 knots, becoming southeast in
the afternoon. Lake waters smooth.
.FRIDAY NIGHT...Southwest winds around 5 knots. Lake waters
smooth.
.SATURDAY...North winds around 5 knots, becoming southeast in the
afternoon. Lake waters smooth.
.SATURDAY NIGHT...South winds 5 to 10 knots. Lake waters light
chop.
.SUNDAY...Northeast winds around 5 knots, becoming southeast in
the afternoon. Lake waters light chop.
.SUNDAY NIGHT...Southeast winds 5 to 10 knots. Lake waters light
chop.
.MONDAY...Northeast winds around 5 knots, becoming southeast in
the afternoon. Lake waters light chop.
.MONDAY NIGHT...South winds 5 to 10 knots, becoming east after
midnight. Lake waters light chop.

$$

GMZ435-110600-
Vermilion and West Cote Blanche Bays-
1250 PM CDT Wed Sep 10 2025

.TONIGHT...East winds 5 to 10 knots. Bay waters light chop.
.THURSDAY...East winds 5 to 10 knots. Bay waters light chop.
.THURSDAY NIGHT...Southeast winds 5 to 10 knots, becoming east
after midnight. Bay waters light chop.
.FRIDAY...Northeast winds around 5 knots, becoming east in the
afternoon. Bay waters smooth.
.FRIDAY NIGHT...South winds around 5 knots, becoming west around
5 knots after midnight. Bay waters smooth.
.SATURDAY...North winds around 5 knots, becoming southeast in the
afternoon. Bay waters light chop.
.SATURDAY NIGHT...South winds 5 to 10 knots. Bay waters light
chop.
.SUNDAY...Northeast winds around 5 knots, becoming southeast in
the afternoon. Bay waters light chop.
.SUNDAY NIGHT...Southeast winds 5 to 10 knots. Bay waters light
chop.
.MONDAY...Northeast winds 5 to 10 knots, becoming southeast in
the afternoon. Bay waters light chop.
.MONDAY NIGHT...Southeast winds 5 to 10 knots, becoming east
after midnight. Bay waters light chop.

$$

GMZ436-110600-
Atchafalaya and East Cote Blanche Bays-
1250 PM CDT Wed Sep 10 2025

.TONIGHT...East winds 5 to 10 knots. Bay waters light chop. A
slight chance of showers and thunderstorms early this evening.
.THURSDAY...East winds 5 to 10 knots. Bay waters light chop.
.THURSDAY NIGHT...Southeast winds 5 to 10 knots, becoming east
after midnight. Bay waters light chop.
.FRIDAY...Northeast winds around 5 knots, becoming east around
5 knots in the afternoon. Bay waters smooth.
.FRIDAY NIGHT...South winds around 5 knots, becoming west after
midnight. Bay waters smooth.
.SATURDAY...North winds around 5 knots, becoming southeast around
5 knots in the afternoon. Bay waters smooth.
.SATURDAY NIGHT...South winds 5 to 10 knots, becoming southeast
after midnight. Bay waters light chop.
.SUNDAY...Northeast winds around 5 knots, becoming southeast in
the afternoon. Bay waters light chop.
.SUNDAY NIGHT...East winds 5 to 10 knots. Bay waters light chop.
.MONDAY...East winds 5 to 10 knots. Bay waters light chop.
.MONDAY NIGHT...Southeast winds 5 to 10 knots, becoming east
after midnight. Bay waters light chop.

Winds and waves higher in and near thunderstorms.

$$

GMZ450-110600-
Coastal waters from Cameron LA to High Island TX out 20 NM-
1250 PM CDT Wed Sep 10 2025

.TONIGHT...Southeast winds 5 to 10 knots. Seas around 2 feet.
Wave Detail: Southeast 2 feet at 4 seconds.
.THURSDAY...East winds 10 to 15 knots. Seas around 2 feet. Wave
Detail: Southeast 2 feet at 4 seconds.
.THURSDAY NIGHT...Southeast winds 5 to 10 knots. Seas around
2 feet. Wave Detail: Southeast 2 feet at 5 seconds.
.FRIDAY...East winds 5 to 10 knots. Seas around 2 feet. Wave
Detail: Southeast 2 feet at 5 seconds.
.FRIDAY NIGHT...South winds 5 to 10 knots. Seas around 2 feet.
Wave Detail: Southeast 1 foot at 5 seconds.
.SATURDAY...North winds 5 to 10 knots, becoming southeast in the
afternoon. Seas 1 foot or less. Wave Detail: Southeast 1 foot at
5 seconds.
.SATURDAY NIGHT...South winds 5 to 10 knots. Seas around 2 feet.
.SUNDAY...Southeast winds 5 to 10 knots. Seas around 2 feet.
.SUNDAY NIGHT...Southeast winds 5 to 10 knots. Seas around
2 feet.
.MONDAY...East winds 5 to 10 knots. Seas around 2 feet.
.MONDAY NIGHT...Southeast winds 5 to 10 knots. Seas around
2 feet.

$$

GMZ452-110600-
Coastal waters from Intracoastal City to Cameron LA out 20 NM-
1250 PM CDT Wed Sep 10 2025

.TONIGHT...Southeast winds 5 to 10 knots. Seas around 2 feet.
Wave Detail: Southeast 2 feet at 4 seconds.
.THURSDAY...East winds 10 to 15 knots, diminishing to 5 to
10 knots in the afternoon. Seas around 2 feet. Wave Detail:
Southeast 2 feet at 4 seconds.
.THURSDAY NIGHT...Southeast winds 5 to 10 knots. Seas around
2 feet. Wave Detail: Southeast 2 feet at 4 seconds.
.FRIDAY...Northeast winds 5 to 10 knots, becoming southeast in
the afternoon. Seas around 2 feet in the morning, then 1 foot or
less. Wave Detail: Southeast 1 foot at 5 seconds.
.FRIDAY NIGHT...South winds 5 to 10 knots. Seas 1 foot or less.
Wave Detail: Southeast 1 foot at 5 seconds.
.SATURDAY...North winds 5 to 10 knots, becoming southeast in the
afternoon. Seas 1 foot or less. Wave Detail: Southeast 1 foot at
5 seconds.
.SATURDAY NIGHT...South winds 5 to 10 knots. Seas around 2 feet.
.SUNDAY...East winds 5 to 10 knots. Seas around 2 feet.
.SUNDAY NIGHT...Southeast winds 5 to 10 knots. Seas around
2 feet.
.MONDAY...East winds 5 to 10 knots. Seas around 2 feet.
.MONDAY NIGHT...Southeast winds 5 to 10 knots. Seas around
2 feet.

$$

GMZ455-110600-
Coastal waters from Lower Atchafalaya River to Intracoastal City
LA out 20 NM-
1250 PM CDT Wed Sep 10 2025

.TONIGHT...East winds 10 to 15 knots, diminishing to 5 to
10 knots after midnight. Seas around 2 feet. A slight chance of
showers and thunderstorms early this evening.
.THURSDAY...East winds 10 to 15 knots, diminishing to 5 to
10 knots in the afternoon. Seas around 2 feet. Wave Detail: East
1 foot at 3 seconds.
.THURSDAY NIGHT...East winds 5 to 10 knots. Seas 1 foot or less.
.FRIDAY...East winds 5 to 10 knots. Seas 1 foot or less. Wave
Detail: Northeast 1 foot at 2 seconds.
.FRIDAY NIGHT...South winds around 5 knots. Seas 1 foot or less.
.SATURDAY...North winds around 5 knots, becoming east in the
afternoon. Seas 1 foot or less.
.SATURDAY NIGHT...Southeast winds 5 to 10 knots. Seas 1 foot or
less.
.SUNDAY...East winds 5 to 10 knots. Seas 1 foot or less.
.SUNDAY NIGHT...East winds 5 to 10 knots. Seas around 2 feet.
.MONDAY...East winds 5 to 10 knots. Seas around 2 feet in the
morning, then 1 foot or less.
.MONDAY NIGHT...East winds 5 to 10 knots. Seas around 2 feet.

Winds and seas higher in and near thunderstorms.

$$

GMZ470-110600-
Coastal waters from Cameron LA to High Island TX from 20 to 60 NM-
1250 PM CDT Wed Sep 10 2025

.TONIGHT...East winds 10 to 15 knots. Seas 2 to 3 feet. Wave
Detail: East 3 feet at 5 seconds. A slight chance of showers. A
slight chance of thunderstorms late this evening. A slight chance
of thunderstorms late.
.THURSDAY...East winds 10 to 15 knots. Seas 2 to 3 feet. Wave
Detail: East 3 feet at 5 seconds. A slight chance of showers and
thunderstorms until late afternoon.
.THURSDAY NIGHT...Southeast winds 10 to 15 knots, diminishing to
5 to 10 knots after midnight. Seas 2 to 3 feet. Wave Detail:
Southeast 3 feet at 5 seconds.
.FRIDAY...East winds 5 to 10 knots. Seas 2 to 3 feet. Wave
Detail: Southeast 2 feet at 6 seconds.
.FRIDAY NIGHT...Southeast winds 5 to 10 knots. Seas around
2 feet. Wave Detail: Southeast 2 feet at 5 seconds.
.SATURDAY...East winds 5 to 10 knots. Seas around 2 feet. Wave
Detail: Southeast 2 feet at 5 seconds.
.SATURDAY NIGHT...Southeast winds 5 to 10 knots. Seas around
2 feet.
.SUNDAY...East winds 5 to 10 knots. Seas 2 to 3 feet.
.SUNDAY NIGHT...Southeast winds 10 to 15 knots. Seas 2 to 3 feet.
A slight chance of showers in the late evening and overnight.
.MONDAY...East winds 10 to 15 knots. Seas 2 to 3 feet. A slight
chance of showers.
.MONDAY NIGHT...Southeast winds 10 to 15 knots. Seas 2 to 3 feet.
A slight chance of showers.

Winds and seas higher in and near thunderstorms.

$$

GMZ472-110600-
Coastal waters from Intracoastal City to Cameron LA from 20 to
60 NM-
1250 PM CDT Wed Sep 10 2025

.TONIGHT...East winds 10 to 15 knots. Seas 2 to 3 feet. Wave
Detail: East 3 feet at 5 seconds. A slight chance of showers and
thunderstorms.
.THURSDAY...East winds 10 to 15 knots. Seas 2 to 3 feet. Wave
Detail: East 3 feet at 5 seconds. A slight chance of showers and
thunderstorms early in the morning.
.THURSDAY NIGHT...East winds 10 to 15 knots, diminishing to 5 to
10 knots after midnight. Seas 2 to 3 feet. Wave Detail: Southeast
2 feet at 5 seconds.
.FRIDAY...East winds 5 to 10 knots. Seas 2 to 3 feet. Wave
Detail: Southeast 2 feet at 5 seconds.
.FRIDAY NIGHT...Southeast winds 5 to 10 knots. Seas around
2 feet. Wave Detail: Southeast 2 feet at 5 seconds.
.SATURDAY...Northeast winds 5 to 10 knots. Seas around 2 feet.
Wave Detail: Southeast 2 feet at 5 seconds.
.SATURDAY NIGHT...Southeast winds 5 to 10 knots. Seas around
2 feet.
.SUNDAY...East winds 5 to 10 knots. Seas 2 to 3 feet.
.SUNDAY NIGHT...East winds 10 to 15 knots. Seas 2 to 3 feet.
.MONDAY...East winds 10 to 15 knots. Seas 2 to 3 feet.
.MONDAY NIGHT...East winds 10 to 15 knots. Seas 2 to 3 feet. A
slight chance of showers.

Winds and seas higher in and near thunderstorms.

$$

GMZ475-110600-
Coastal waters from Lower Atchafalaya River to Intracoastal City
LA from 20 to 60 NM-
1250 PM CDT Wed Sep 10 2025

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

Winds and seas higher in and near thunderstorms.

$$