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Grand Chenier, LA Coastal Forecast

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Coastal Waters Forecast
National Weather Service Lake Charles LA
1207 AM CST Tue Dec 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.

GMZ400-231900-
1207 AM CST Tue Dec 23 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...

With surface high pressure riding into the coastal waters from the
southeast U.S. mainly light onshore winds, and with that, low seas
are expected to persist through the week. No significant shower
activity is expected. However, areas of sea fog, dense at times,
will have the potential to form each night and last until the late
morning or early afternoon hours.

$$

GMZ430-231900-
Sabine Lake-
1207 AM CST Tue Dec 23 2025

...DENSE FOG ADVISORY IN EFFECT UNTIL 10 AM CST THIS MORNING...

.TODAY...Southeast winds around 5 knots. Lake waters smooth.
Areas of dense fog early this morning, then patchy fog late this
morning.
.TONIGHT...Southeast winds around 5 knots. Lake waters smooth.
Patchy fog in the evening, then areas of fog after midnight.
.WEDNESDAY...Southeast winds around 5 knots. Lake waters smooth.
Areas of fog in the morning.
.WEDNESDAY NIGHT...Southeast winds around 5 knots. Lake waters
smooth. Patchy fog after midnight.
.THURSDAY...Southeast winds around 5 knots. Lake waters smooth.
Patchy fog in the morning.
.THURSDAY NIGHT...South winds 5 to 10 knots. Lake waters light
chop.
.FRIDAY...Southwest winds 5 to 10 knots. Lake waters light chop.
.FRIDAY NIGHT...Southwest winds 5 to 10 knots. Lake waters light
chop.
.SATURDAY...South winds 5 to 10 knots. Lake waters light chop.
.SATURDAY NIGHT...South winds 5 to 10 knots. Lake waters light
chop.

$$

GMZ432-231900-
Calcasieu Lake-
1207 AM CST Tue Dec 23 2025

...DENSE FOG ADVISORY IN EFFECT UNTIL 10 AM CST THIS MORNING...

.TODAY...Southeast winds around 5 knots. Lake waters smooth.
Areas of dense fog this morning.
.TONIGHT...Southeast winds around 5 knots. Lake waters smooth.
Patchy fog in the evening, then areas of fog after midnight.
.WEDNESDAY...Southeast winds 5 to 10 knots. Lake waters light
chop. Areas of fog in the morning.
.WEDNESDAY NIGHT...Southeast winds 5 to 10 knots. Lake waters
light chop. Patchy fog after midnight.
.THURSDAY...Southeast winds 5 to 10 knots. Lake waters light
chop. Patchy fog in the morning.
.THURSDAY NIGHT...South winds 5 to 10 knots. Lake waters light
chop.
.FRIDAY...Southwest winds 5 to 10 knots. Lake waters light chop.
.FRIDAY NIGHT...Southwest winds 5 to 10 knots. Lake waters light
chop.
.SATURDAY...South winds 5 to 10 knots. Lake waters light chop.
.SATURDAY NIGHT...South winds 5 to 10 knots. Lake waters light
chop.

$$

GMZ435-231900-
Vermilion and West Cote Blanche Bays-
1207 AM CST Tue Dec 23 2025

...DENSE FOG ADVISORY IN EFFECT UNTIL 10 AM CST THIS MORNING...

.TODAY...Southeast winds 5 to 10 knots. Bay waters light chop.
Areas of dense fog this morning.
.TONIGHT...East winds around 5 knots. Bay waters smooth. Patchy
fog in the evening, then areas of fog after midnight.
.WEDNESDAY...Southeast winds around 5 knots. Bay waters smooth.
Areas of fog in the morning.
.WEDNESDAY NIGHT...Southeast winds around 5 knots. Bay waters
smooth. Patchy fog after midnight.
.THURSDAY...Southeast winds around 5 knots. Bay waters smooth.
Patchy fog in the morning.
.THURSDAY NIGHT...South winds around 5 knots. Bay waters smooth.
.FRIDAY...Southwest winds 5 to 10 knots. Bay waters light chop.
.FRIDAY NIGHT...South winds 5 to 10 knots. Bay waters light chop.
.SATURDAY...South winds 5 to 10 knots. Bay waters light chop.
.SATURDAY NIGHT...South winds 5 to 10 knots. Bay waters light
chop.

$$

GMZ436-231900-
Atchafalaya and East Cote Blanche Bays-
1207 AM CST Tue Dec 23 2025

...DENSE FOG ADVISORY IN EFFECT UNTIL 10 AM CST THIS MORNING...

.TODAY...Southeast winds 5 to 10 knots. Bay waters light chop.
Areas of dense fog early this morning, then patchy fog late this
morning.
.TONIGHT...East winds around 5 knots. Bay waters smooth. Patchy
fog in the evening, then areas of fog after midnight.
.WEDNESDAY...Southeast winds around 5 knots. Bay waters smooth.
Areas of fog in the morning.
.WEDNESDAY NIGHT...Southeast winds around 5 knots. Bay waters
smooth. Patchy fog after midnight.
.THURSDAY...Southeast winds around 5 knots. Bay waters smooth.
Patchy fog in the morning.
.THURSDAY NIGHT...South winds around 5 knots. Bay waters smooth.
.FRIDAY...South winds 5 to 10 knots. Bay waters light chop.
.FRIDAY NIGHT...South winds around 5 knots. Bay waters smooth.
.SATURDAY...South winds around 5 knots. Bay waters smooth.
.SATURDAY NIGHT...South winds around 5 knots. Bay waters smooth.

$$

GMZ450-231900-
Coastal waters from Cameron LA to High Island TX out 20 NM-
1207 AM CST Tue Dec 23 2025

...DENSE FOG ADVISORY IN EFFECT UNTIL 10 AM CST THIS MORNING...

.TODAY...East winds 5 to 10 knots. Seas around 2 feet. Wave
Detail: Southeast 2 feet at 5 seconds. Areas of dense fog this
morning, then patchy fog early this afternoon.
.TONIGHT...East winds 5 to 10 knots. Seas around 2 feet. Wave
Detail: Southeast 2 feet at 6 seconds. Patchy fog in the evening,
then areas of fog after midnight.
.WEDNESDAY...East winds 5 to 10 knots. Seas around 2 feet. Wave
Detail: Southeast 2 feet at 6 seconds. Areas of fog in the
morning.
.WEDNESDAY NIGHT...Southeast winds 5 to 10 knots. Seas around
2 feet. Wave Detail: Southeast 2 feet at 7 seconds. Patchy fog
after midnight.
.THURSDAY...Southeast winds 5 to 10 knots. Seas around 2 feet.
Wave Detail: Southeast 2 feet at 7 seconds. Patchy fog in the
morning.
.THURSDAY NIGHT...South winds 5 to 10 knots. Seas around 2 feet.
Wave Detail: Southeast 2 feet at 7 seconds.
.FRIDAY...Southwest winds 5 to 10 knots. Seas around 2 feet.
.FRIDAY NIGHT...South winds around 10 knots. Seas around 2 feet.
.SATURDAY...South winds around 10 knots. Seas around 2 feet.
.SATURDAY NIGHT...South winds 5 to 10 knots. Seas around 2 feet.

$$

GMZ452-231900-
Coastal waters from Intracoastal City to Cameron LA out 20 NM-
1207 AM CST Tue Dec 23 2025

...DENSE FOG ADVISORY IN EFFECT UNTIL 10 AM CST THIS MORNING...

.TODAY...East winds 5 to 10 knots. Seas around 2 feet. Wave
Detail: Southeast 2 feet at 6 seconds and southeast 1 foot at
3 seconds. Areas of dense fog this morning, then patchy fog early
this afternoon.
.TONIGHT...East winds 5 to 10 knots. Seas around 2 feet. Wave
Detail: Southeast 2 feet at 6 seconds. Patchy fog in the evening.
Areas of fog after midnight.
.WEDNESDAY...East winds 5 to 10 knots. Seas around 2 feet. Wave
Detail: Southeast 2 feet at 6 seconds. Areas of fog in the
morning.
.WEDNESDAY NIGHT...Southeast winds 5 to 10 knots. Seas around
2 feet. Wave Detail: Southeast 2 feet at 6 seconds. Patchy fog
after midnight.
.THURSDAY...Southeast winds 5 to 10 knots. Seas around 2 feet.
Wave Detail: Southeast 2 feet at 7 seconds and southeast 1 foot
at 2 seconds. Patchy fog in the morning.
.THURSDAY NIGHT...South winds 5 to 10 knots. Seas around 2 feet.
Wave Detail: Southeast 2 feet at 7 seconds.
.FRIDAY...Southwest winds 5 to 10 knots. Seas around 2 feet.
.FRIDAY NIGHT...South winds 5 to 10 knots. Seas around 2 feet.
.SATURDAY...South winds 5 to 10 knots. Seas around 2 feet.
.SATURDAY NIGHT...South winds 5 to 10 knots. Seas around 2 feet.

$$

GMZ455-231900-
Coastal waters from Lower Atchafalaya River to Intracoastal City
LA out 20 NM-
1207 AM CST Tue Dec 23 2025

...DENSE FOG ADVISORY IN EFFECT UNTIL 10 AM CST THIS MORNING...

.TODAY...East winds 5 to 10 knots. Seas 1 foot or less. Wave
Detail: Southeast 1 foot at 2 seconds. Areas of dense fog this
morning.
.TONIGHT...East winds around 5 knots. Seas 1 foot or less. Patchy
fog in the evening. Areas of fog after midnight.
.WEDNESDAY...East winds 5 to 10 knots. Seas 1 foot or less. Wave
Detail: Southeast 1 foot at 2 seconds. Areas of fog in the
morning.
.WEDNESDAY NIGHT...Southeast winds around 5 knots. Seas 1 foot or
less. Wave Detail: Southeast 1 foot at 2 seconds. Patchy fog
after midnight.
.THURSDAY...Southeast winds around 5 knots. Seas 1 foot or less.
Patchy fog in the morning.
.THURSDAY NIGHT...South winds around 5 knots. Seas 1 foot or
less. Wave Detail: South 1 foot at 3 seconds.
.FRIDAY...South winds 5 to 10 knots. Seas 1 foot or less.
.FRIDAY NIGHT...South winds 5 to 10 knots. Seas 1 foot or less.
.SATURDAY...South winds around 5 knots. Seas 1 foot or less.
.SATURDAY NIGHT...South winds 5 to 10 knots. Seas 1 foot or less.

$$

GMZ470-231900-
Coastal waters from Cameron LA to High Island TX from 20 to 60 NM-
1207 AM CST Tue Dec 23 2025

.TODAY...East winds 5 to 10 knots. Seas 2 to 3 feet. Wave Detail:
Southeast 3 feet at 6 seconds. Areas of fog this morning.
.TONIGHT...East winds around 10 knots. Seas 2 to 3 feet. Wave
Detail: Southeast 3 feet at 6 seconds.
.WEDNESDAY...East winds 5 to 10 knots. Seas 2 to 3 feet. Wave
Detail: Southeast 3 feet at 7 seconds.
.WEDNESDAY NIGHT...Southeast winds 5 to 10 knots. Seas 2 to
3 feet. Wave Detail: Southeast 3 feet at 7 seconds.
.THURSDAY...Southeast winds around 5 knots. Seas 2 to 3 feet.
Wave Detail: Southeast 3 feet at 7 seconds. A slight chance of
showers in the afternoon.
.THURSDAY NIGHT...South winds 5 to 10 knots. Seas 2 to 3 feet.
Wave Detail: Southeast 3 feet at 7 seconds.
.FRIDAY...Southwest winds 5 to 10 knots. Seas 2 to 3 feet.
.FRIDAY NIGHT...South winds around 10 knots. Seas around 2 feet.
.SATURDAY...South winds around 10 knots. Seas around 2 feet.
.SATURDAY NIGHT...South winds around 10 knots. Seas around
2 feet.

$$

GMZ472-231900-
Coastal waters from Intracoastal City to Cameron LA from 20 to
60 NM-
1207 AM CST Tue Dec 23 2025

.TODAY...East winds around 10 knots. Seas 2 to 3 feet. Wave
Detail: Southeast 3 feet at 6 seconds. Areas of fog this morning.
.TONIGHT...East winds around 10 knots. Seas 2 to 3 feet. Wave
Detail: Southeast 3 feet at 6 seconds.
.WEDNESDAY...East winds around 10 knots. Seas 2 to 3 feet. Wave
Detail: Southeast 3 feet at 7 seconds.
.WEDNESDAY NIGHT...Southeast winds 5 to 10 knots. Seas 2 to
3 feet. Wave Detail: Southeast 3 feet at 7 seconds.
.THURSDAY...Southeast winds 5 to 10 knots. Seas 2 to 3 feet. Wave
Detail: Southeast 3 feet at 7 seconds. A slight chance of showers
in the afternoon.
.THURSDAY NIGHT...South winds 5 to 10 knots. Seas 2 to 3 feet.
Wave Detail: Southeast 3 feet at 7 seconds.
.FRIDAY...Southwest winds 5 to 10 knots. Seas 2 to 3 feet.
.FRIDAY NIGHT...South winds 5 to 10 knots. Seas around 2 feet.
.SATURDAY...South winds 5 to 10 knots. Seas around 2 feet.
.SATURDAY NIGHT...South winds 5 to 10 knots. Seas around 2 feet.

$$

GMZ475-231900-
Coastal waters from Lower Atchafalaya River to Intracoastal City
LA from 20 to 60 NM-
1207 AM CST Tue Dec 23 2025

.TODAY...East winds 5 to 10 knots. Seas 2 to 3 feet. Wave Detail:
Southeast 3 feet at 6 seconds. Areas of fog this morning.
.TONIGHT...East winds around 10 knots. Seas 2 to 3 feet. Wave
Detail: Southeast 3 feet at 7 seconds.
.WEDNESDAY...East winds around 10 knots. Seas 2 to 4 feet. Wave
Detail: Southeast 3 feet at 7 seconds.
.WEDNESDAY NIGHT...East winds 5 to 10 knots. Seas 2 to 4 feet.
Wave Detail: Southeast 3 feet at 8 seconds.
.THURSDAY...Southeast winds 5 to 10 knots. Seas 2 to 3 feet. Wave
Detail: Southeast 3 feet at 7 seconds. A slight chance of showers
in the afternoon.
.THURSDAY NIGHT...South winds 5 to 10 knots. Seas 2 to 3 feet.
Wave Detail: Southeast 3 feet at 7 seconds.
.FRIDAY...South winds 5 to 10 knots. Seas 2 to 3 feet.
.FRIDAY NIGHT...South winds 5 to 10 knots. Seas around 2 feet.
.SATURDAY...South winds 5 to 10 knots. Seas around 2 feet.
.SATURDAY NIGHT...South winds 5 to 10 knots. Seas around 2 feet.

$$



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