Mermentau River, LA - Grand Chenier Coastal Forecast

FZUS54 KLCH 240250
CWFLCH

Coastal Waters Forecast
National Weather Service Lake Charles LA
950 PM CDT Wed Apr 23 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.

GMZ400-241515-
950 PM CDT Wed Apr 23 2025

.SYNOPSIS...
With high pressure remaining anchored to our east, light to
moderate southeast winds will continue for several days. Seas are
expected to range from 2 to 4 feet through the week.

$$

GMZ430-241515-
Sabine Lake-
950 PM CDT Wed Apr 23 2025

.REST OF TONIGHT...Southeast winds 5 to 10 knots. Lake waters
light chop. A chance of thunderstorms late this evening. A chance
of showers late this evening and early morning, then a slight
chance of showers and thunderstorms late.
.THURSDAY...Southeast winds 5 to 10 knots. Lake waters light
chop. A slight chance of showers and thunderstorms.
.THURSDAY NIGHT...Southeast winds 5 to 10 knots. Lake waters
light chop.
.FRIDAY...Southeast winds 5 to 10 knots. Lake waters light chop.
A slight chance of showers and thunderstorms in the afternoon.
.FRIDAY NIGHT...Southeast winds 5 to 10 knots. Lake waters light
chop.
.SATURDAY...Southeast winds 5 to 10 knots. Lake waters light
chop.
.SATURDAY NIGHT...South winds 5 to 10 knots. Lake waters light
chop.
.SUNDAY...South winds 5 to 10 knots. Lake waters light chop.
.SUNDAY NIGHT...South winds around 10 knots. Lake waters light
chop.

Winds and waves higher in and near thunderstorms.

$$

GMZ432-241515-
Calcasieu Lake-
950 PM CDT Wed Apr 23 2025

.REST OF TONIGHT...Southeast winds 5 to 10 knots. Lake waters
light chop. A slight chance of showers and thunderstorms.
.THURSDAY...South winds 5 to 10 knots. Lake waters light chop. A
slight chance of showers and thunderstorms in the afternoon.
.THURSDAY NIGHT...Southeast winds around 10 knots. Lake waters
light chop.
.FRIDAY...Southeast winds 5 to 10 knots, becoming south 10 to
15 knots with gusts up to 20 knots in the afternoon. Lake waters
choppy.
.FRIDAY NIGHT...Southeast winds 5 to 10 knots. Lake waters light
chop.
.SATURDAY...Southeast winds 5 to 10 knots. Lake waters light
chop.
.SATURDAY NIGHT...South winds 5 to 10 knots. Lake waters light
chop.
.SUNDAY...Southeast winds 5 to 10 knots, becoming south 10 to
15 knots in the afternoon. Lake waters choppy.
.SUNDAY NIGHT...South winds 10 to 15 knots. Lake waters choppy.

Winds and waves higher in and near thunderstorms.

$$

GMZ435-241515-
Vermilion and West Cote Blanche Bays-
950 PM CDT Wed Apr 23 2025

.REST OF TONIGHT...Southeast winds 5 to 10 knots. Bay waters
light chop.
.THURSDAY...Southeast winds 5 to 10 knots. Bay waters light chop.
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 10 knots. Bay waters
light chop. A slight chance of showers and thunderstorms in the
evening.
.FRIDAY...Southeast winds 5 to 10 knots. Bay waters light chop.
.FRIDAY NIGHT...Southeast winds 5 to 10 knots. Bay waters light
chop.
.SATURDAY...Southeast winds 5 to 10 knots. Bay waters light chop.
.SATURDAY NIGHT...South winds 5 to 10 knots. Bay waters light
chop.
.SUNDAY...Southeast winds 5 to 10 knots. Bay waters light chop.
.SUNDAY NIGHT...South winds 5 to 10 knots. Bay waters light chop.

Winds and waves higher in and near thunderstorms.

$$

GMZ436-241515-
Atchafalaya and East Cote Blanche Bays-
950 PM CDT Wed Apr 23 2025

.REST OF TONIGHT...Southeast winds 5 to 10 knots. Bay waters
light chop.
.THURSDAY...Southeast winds 5 to 10 knots. Bay waters light chop.
A slight chance of showers and thunderstorms in the afternoon.
.THURSDAY NIGHT...Southeast winds 5 to 10 knots. Bay waters light
chop.
.FRIDAY...Southeast winds 5 to 10 knots. Bay waters light chop.
.FRIDAY NIGHT...Southeast winds 5 to 10 knots. Bay waters light
chop.
.SATURDAY...Southeast winds 5 to 10 knots. Bay waters light chop.
.SATURDAY NIGHT...South winds 5 to 10 knots. Bay waters light
chop.
.SUNDAY...Southeast winds 5 to 10 knots. Bay waters light chop.
.SUNDAY NIGHT...South winds 5 to 10 knots. Bay waters light chop.

Winds and waves higher in and near thunderstorms.

$$

GMZ450-241515-
Coastal waters from Cameron LA to High Island TX out 20 NM-
950 PM CDT Wed Apr 23 2025

.REST OF TONIGHT...Southeast winds 10 to 15 knots. Seas around
2 feet. Wave Detail: Southeast 2 feet at 5 seconds. A slight
chance of showers and thunderstorms late this evening, then a
slight chance of showers.
.THURSDAY...Southeast winds around 10 knots. Seas around 2 feet.
Wave Detail: Southeast 2 feet at 4 seconds.
.THURSDAY NIGHT...Southeast winds 10 to 15 knots. Seas 2 to
3 feet. Wave Detail: Southeast 2 feet at 5 seconds.
.FRIDAY...Southeast winds 10 to 15 knots. Seas 2 to 3 feet. Wave
Detail: Southeast 3 feet at 7 seconds.
.FRIDAY NIGHT...Southeast winds around 10 knots. Seas around
2 feet. Wave Detail: Southeast 2 feet at 7 seconds.
.SATURDAY...Southeast winds around 10 knots. Seas around 2 feet.
.SATURDAY NIGHT...Southeast winds around 10 knots. Seas around
2 feet.
.SUNDAY...Southeast winds around 10 knots. Seas around 2 feet.
.SUNDAY NIGHT...Southeast winds 10 to 15 knots. Seas 2 to 3 feet.

Winds and seas higher in and near thunderstorms.

$$

GMZ452-241515-
Coastal waters from Intracoastal City to Cameron LA out 20 NM-
950 PM CDT Wed Apr 23 2025

.REST OF TONIGHT...Southeast winds around 10 knots. Seas around
2 feet. Wave Detail: South 2 feet at 5 seconds.
.THURSDAY...Southeast winds around 10 knots. Seas 2 to 3 feet.
Wave Detail: South 2 feet at 4 seconds. A slight chance of
showers and thunderstorms in the afternoon.
.THURSDAY NIGHT...Southeast winds 10 to 15 knots. Seas 2 to
3 feet. Wave Detail: Southeast 2 feet at 3 seconds.
.FRIDAY...Southeast winds 10 to 15 knots. Seas 2 to 3 feet. Wave
Detail: Southeast 3 feet at 7 seconds.
.FRIDAY NIGHT...Southeast winds around 10 knots. Seas 2 to
3 feet. Wave Detail: Southeast 3 feet at 7 seconds.
.SATURDAY...Southeast winds 5 to 10 knots. Seas around 2 feet.
.SATURDAY NIGHT...Southeast winds around 10 knots. Seas around
2 feet.
.SUNDAY...Southeast winds 5 to 10 knots. Seas around 2 feet.
.SUNDAY NIGHT...Southeast winds 10 to 15 knots. Seas 2 to 3 feet.

Winds and seas higher in and near thunderstorms.

$$

GMZ455-241515-
Coastal waters from Lower Atchafalaya River to Intracoastal City
LA out 20 NM-
950 PM CDT Wed Apr 23 2025

.REST OF TONIGHT...Southeast winds around 10 knots. Seas around
2 feet. Wave Detail: Southeast 1 foot at 3 seconds.
.THURSDAY...Southeast winds around 10 knots. Seas around 2 feet.
Wave Detail: Southeast 1 foot at 3 seconds. A slight chance of
showers and thunderstorms in the afternoon.
.THURSDAY NIGHT...Southeast winds around 10 knots. Seas around
2 feet. Wave Detail: Southeast 1 foot at 3 seconds.
.FRIDAY...Southeast winds around 10 knots. Seas around 2 feet.
Wave Detail: Southeast 1 foot at 3 seconds.
.FRIDAY NIGHT...Southeast winds 5 to 10 knots. Seas around
2 feet. Wave Detail: Southeast 1 foot at 2 seconds.
.SATURDAY...Southeast winds 5 to 10 knots. Seas 1 to 2 feet.
.SATURDAY NIGHT...Southeast winds 5 to 10 knots. Seas 1 foot or
less.
.SUNDAY...Southeast winds 5 to 10 knots. Seas 1 foot or less.
.SUNDAY NIGHT...Southeast winds 5 to 10 knots. Seas 1 foot or
less, then around 2 feet after midnight.

Winds and seas higher in and near thunderstorms.

$$

GMZ470-241515-
Coastal waters from Cameron LA to High Island TX from 20 to 60 NM-
950 PM CDT Wed Apr 23 2025

.REST OF TONIGHT...Southeast winds around 10 knots. Seas around
3 feet. Wave Detail: South 3 feet at 7 seconds.
.THURSDAY...Southeast winds around 10 knots. Seas around 3 feet.
Wave Detail: South 3 feet at 6 seconds.
.THURSDAY NIGHT...Southeast winds around 10 knots. Seas 3 to
4 feet. Wave Detail: Southeast 3 feet at 6 seconds.
.FRIDAY...Southeast winds around 10 knots. Seas 3 to 4 feet. Wave
Detail: Southeast 4 feet at 7 seconds.
.FRIDAY NIGHT...Southeast winds around 10 knots. Seas 3 to
4 feet. Wave Detail: Southeast 3 feet at 7 seconds.
.SATURDAY...Southeast winds around 10 knots. Seas 2 to 3 feet.
.SATURDAY NIGHT...Southeast winds around 10 knots. Seas 2 to
3 feet.
.SUNDAY...Southeast winds around 10 knots. Seas 2 to 3 feet.
.SUNDAY NIGHT...Southeast winds 10 to 15 knots. Seas 2 to 3 feet.

$$

GMZ472-241515-
Coastal waters from Intracoastal City to Cameron LA from 20 to
60 NM-
950 PM CDT Wed Apr 23 2025

.REST OF TONIGHT...Southeast winds around 10 knots. Seas around
3 feet. Wave Detail: South 3 feet at 6 seconds.
.THURSDAY...Southeast winds around 10 knots. Seas around 3 feet.
Wave Detail: South 3 feet at 6 seconds.
.THURSDAY NIGHT...Southeast winds 10 to 15 knots. Seas 3 to
4 feet. Wave Detail: South 4 feet at 6 seconds.
.FRIDAY...Southeast winds 10 to 15 knots. Seas 3 to 4 feet. Wave
Detail: Southeast 4 feet at 7 seconds.
.FRIDAY NIGHT...Southeast winds around 10 knots. Seas 3 to
4 feet. Wave Detail: Southeast 4 feet at 7 seconds.
.SATURDAY...Southeast winds around 10 knots. Seas around 3 feet.
.SATURDAY NIGHT...Southeast winds around 10 knots. Seas 2 to
3 feet.
.SUNDAY...Southeast winds around 10 knots. Seas 2 to 3 feet.
.SUNDAY NIGHT...Southeast winds 10 to 15 knots. Seas 2 to 3 feet.

$$

GMZ475-241515-
Coastal waters from Lower Atchafalaya River to Intracoastal City
LA from 20 to 60 NM-
950 PM CDT Wed Apr 23 2025

.REST OF TONIGHT...Southeast winds 10 to 15 knots. Seas 2 to
3 feet. Wave Detail: Southeast 3 feet at 7 seconds.
.THURSDAY...Southeast winds around 10 knots. Seas around 3 feet.
Wave Detail: Southeast 3 feet at 6 seconds. A slight chance of
showers and thunderstorms in the afternoon.
.THURSDAY NIGHT...Southeast winds 10 to 15 knots. Seas 3 to
4 feet. Wave Detail: Southeast 4 feet at 7 seconds.
.FRIDAY...Southeast winds 10 to 15 knots. Seas 3 to 4 feet. Wave
Detail: Southeast 4 feet at 7 seconds.
.FRIDAY NIGHT...Southeast winds around 10 knots. Seas 3 to
4 feet. Wave Detail: Southeast 4 feet at 7 seconds.
.SATURDAY...Southeast winds 5 to 10 knots. Seas 2 to 3 feet.
.SATURDAY NIGHT...Southeast winds 5 to 10 knots. Seas 2 to
3 feet.
.SUNDAY...Southeast winds 5 to 10 knots. Seas 2 to 3 feet.
.SUNDAY NIGHT...Southeast winds around 10 knots. Seas 2 to
3 feet.

Winds and seas higher in and near thunderstorms.

$$