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FZUS54 KLCH 170549
CWFLCH

Coastal Waters Forecast
National Weather Service Lake Charles LA
1149 PM CST Sun Nov 16 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.

GMZ400-172000-
1149 PM CST Sun Nov 16 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...

High pressure centered over the northeastern gulf will ridge into
the coastal waters through the middle part of the week. This will
keep mainly light onshore winds and low seas through Wednesday.
Onshore flow will increase somewhat by Thursday as low pressure
forms over the Southern Plains. The next chance for any significant
shower activity will be Thursday into Friday ahead of an approaching
frontal boundary.

$$

GMZ430-172000-
Sabine Lake-
1149 PM CST Sun Nov 16 2025

.OVERNIGHT...South winds 5 to 10 knots. Lake waters light chop.
Patchy fog.
.MONDAY...South winds 5 to 10 knots. Lake waters light chop.
Areas of dense fog in the morning.
.MONDAY NIGHT...South winds 5 to 10 knots. Lake waters light
chop.
.TUESDAY...South winds 5 to 10 knots. Lake waters light chop.
.TUESDAY NIGHT...Southeast winds 5 to 10 knots. Lake waters light
chop.
.WEDNESDAY...Southeast winds 5 to 10 knots. Lake waters light
chop.
.WEDNESDAY NIGHT...Southeast winds around 10 knots. Lake waters
light chop.
.THURSDAY...Southeast winds 10 to 15 knots. Lake waters choppy. 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. Lake waters
choppy. A chance of showers with a slight chance of thunderstorms
in the evening, then showers likely after midnight.
.FRIDAY...South winds around 10 knots. Lake waters light chop.
Showers likely, mainly in the morning.
.FRIDAY NIGHT...South winds 5 to 10 knots, becoming west after
midnight. Lake waters light chop. A chance of showers. A slight
chance of thunderstorms after midnight.

Winds and waves higher in and near thunderstorms.

$$

GMZ432-172000-
Calcasieu Lake-
1149 PM CST Sun Nov 16 2025

.OVERNIGHT...South winds 5 to 10 knots. Lake waters light chop.
Patchy fog. Areas of dense fog late.
.MONDAY...South winds 5 to 10 knots. Lake waters light chop.
Areas of dense fog in the morning.
.MONDAY NIGHT...South winds 5 to 10 knots. Lake waters light
chop.
.TUESDAY...South winds 5 to 10 knots. Lake waters light chop.
.TUESDAY NIGHT...Southeast winds 5 to 10 knots. Lake waters light
chop.
.WEDNESDAY...Southeast winds 5 to 10 knots. Lake waters light
chop.
.WEDNESDAY NIGHT...Southeast winds around 10 knots. Lake waters
light chop.
.THURSDAY...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 in the afternoon.
.THURSDAY NIGHT...Southeast winds 10 to 15 knots. Lake waters
choppy. A chance of showers with a slight chance of thunderstorms
in the evening, then showers likely after midnight.
.FRIDAY...South winds 10 to 15 knots. Lake waters choppy. Showers
likely, mainly in the morning.
.FRIDAY NIGHT...South winds around 10 knots, becoming west after
midnight. Lake waters light chop. A chance of showers. A slight
chance of thunderstorms after midnight.

Winds and waves higher in and near thunderstorms.

$$

GMZ435-172000-
Vermilion and West Cote Blanche Bays-
1149 PM CST Sun Nov 16 2025

.OVERNIGHT...South winds around 5 knots. Bay waters smooth.
Patchy fog. Areas of dense fog late.
.MONDAY...Southeast winds 5 to 10 knots. Bay waters light chop.
Areas of dense fog in the morning.
.MONDAY NIGHT...Southeast winds 5 to 10 knots. Bay waters light
chop.
.TUESDAY...Southeast winds 5 to 10 knots. Bay waters light chop.
.TUESDAY NIGHT...Southeast winds 5 to 10 knots. Bay waters light
chop.
.WEDNESDAY...Southeast winds 5 to 10 knots. Bay waters light
chop.
.WEDNESDAY NIGHT...Southeast winds around 10 knots. Bay waters
light chop.
.THURSDAY...Southeast winds 10 to 15 knots. Bay waters choppy. A
slight chance of showers in the afternoon.
.THURSDAY NIGHT...Southeast winds 10 to 15 knots. Bay waters
choppy. A chance of showers with a slight chance of
thunderstorms.
.FRIDAY...South winds 10 to 15 knots. Bay waters choppy. A chance
of showers.
.FRIDAY NIGHT...South winds 5 to 10 knots. Bay waters light chop.
A slight chance of showers in the evening, then a chance of
showers with a slight chance of thunderstorms after midnight.

Winds and waves higher in and near thunderstorms.

$$

GMZ436-172000-
Atchafalaya and East Cote Blanche Bays-
1149 PM CST Sun Nov 16 2025

.OVERNIGHT...South winds around 5 knots. Bay waters smooth.
Patchy fog. Areas of dense fog late.
.MONDAY...Southeast winds around 5 knots. Bay waters smooth.
Areas of dense fog in the morning.
.MONDAY NIGHT...Southeast winds 5 to 10 knots. Bay waters light
chop.
.TUESDAY...Southeast winds 5 to 10 knots. Bay waters light chop.
.TUESDAY NIGHT...Southeast winds 5 to 10 knots. Bay waters light
chop.
.WEDNESDAY...Southeast winds 5 to 10 knots. Bay waters light
chop.
.WEDNESDAY NIGHT...Southeast winds 5 to 10 knots. Bay waters
light chop.
.THURSDAY...Southeast winds 5 to 10 knots, increasing to 10 to
15 knots in the afternoon. Bay waters choppy. A slight chance of
showers in the afternoon.
.THURSDAY NIGHT...Southeast winds 10 to 15 knots. Bay waters
choppy. A chance of showers. A slight chance of thunderstorms
after midnight.
.FRIDAY...South winds 5 to 10 knots. Bay waters light chop. A
chance of showers.
.FRIDAY NIGHT...South winds 5 to 10 knots. Bay waters light chop.
A slight chance of showers in the evening, then a chance of
showers with a slight chance of thunderstorms after midnight.

Winds and waves higher in and near thunderstorms.

$$

GMZ450-172000-
Coastal waters from Cameron LA to High Island TX out 20 NM-
1149 PM CST Sun Nov 16 2025

.OVERNIGHT...South winds 5 to 10 knots. Seas around 2 feet. Wave
Detail: South 2 feet at 5 seconds.
.MONDAY...Southeast winds 5 to 10 knots. Seas around 2 feet. Wave
Detail: South 2 feet at 4 seconds. Patchy fog in the morning.
.MONDAY NIGHT...South winds 5 to 10 knots. Seas around 2 feet.
Wave Detail: Southeast 2 feet at 4 seconds.
.TUESDAY...Southeast winds around 10 knots. Seas around 2 feet.
Wave Detail: South 2 feet at 5 seconds.
.TUESDAY NIGHT...Southeast winds 5 to 10 knots. Seas around
2 feet. Wave Detail: Southeast 2 feet at 5 seconds.
.WEDNESDAY...Southeast winds 5 to 10 knots. Seas around 2 feet.
Wave Detail: South 2 feet at 5 seconds.
.WEDNESDAY NIGHT...Southeast winds around 10 knots. Seas around
2 feet. A slight chance of showers.
.THURSDAY...Southeast winds 10 to 15 knots. Seas 2 to 3 feet. A
slight chance of showers in the morning, then a chance of showers
with a slight chance of thunderstorms in the afternoon.
.THURSDAY NIGHT...South winds 10 to 15 knots. Seas 2 to 3 feet. A
chance of showers with a slight chance of thunderstorms in the
evening, then showers likely after midnight.
.FRIDAY...South winds 10 to 15 knots. Seas 2 to 3 feet. Showers
likely, mainly in the morning.
.FRIDAY NIGHT...South winds around 10 knots, becoming west after
midnight. Seas around 2 feet. A chance of showers. A slight
chance of thunderstorms after midnight.

Winds and seas higher in and near thunderstorms.

$$

GMZ452-172000-
Coastal waters from Intracoastal City to Cameron LA out 20 NM-
1149 PM CST Sun Nov 16 2025

.OVERNIGHT...South winds 5 to 10 knots. Seas around 2 feet. Wave
Detail: South 1 foot at 5 seconds. Patchy fog late.
.MONDAY...Southeast winds 5 to 10 knots. Seas around 2 feet. Wave
Detail: Southeast 2 feet at 5 seconds. Patchy fog in the morning.
.MONDAY NIGHT...Southeast winds 5 to 10 knots. Seas around
2 feet. Wave Detail: Southeast 2 feet at 4 seconds.
.TUESDAY...Southeast winds around 10 knots. Seas around 2 feet.
Wave Detail: South 2 feet at 5 seconds.
.TUESDAY NIGHT...Southeast winds 5 to 10 knots. Seas around
2 feet. Wave Detail: Southeast 2 feet at 5 seconds.
.WEDNESDAY...Southeast winds 5 to 10 knots. Seas around 2 feet.
Wave Detail: Southeast 2 feet at 5 seconds.
.WEDNESDAY NIGHT...Southeast winds 10 to 15 knots. Seas around
2 feet. A slight chance of showers after midnight.
.THURSDAY...Southeast winds 10 to 15 knots. Seas 2 to 3 feet. A
slight chance of showers in the morning, then a chance of showers
in the afternoon.
.THURSDAY NIGHT...Southeast winds around 15 knots. Seas 2 to
3 feet. A slight chance of thunderstorms. A chance of showers in
the evening, then showers likely after midnight.
.FRIDAY...South winds 10 to 15 knots. Seas 2 to 3 feet. Showers
likely, mainly in the morning.
.FRIDAY NIGHT...Southwest winds around 10 knots. Seas 2 to
3 feet. A chance of showers. A slight chance of thunderstorms
after midnight.

Winds and seas higher in and near thunderstorms.

$$

GMZ455-172000-
Coastal waters from Lower Atchafalaya River to Intracoastal City
LA out 20 NM-
1149 PM CST Sun Nov 16 2025

.OVERNIGHT...South winds around 5 knots. Seas 1 foot or less.
Wave Detail: Southwest 1 foot at 4 seconds. Patchy fog.
.MONDAY...Southeast winds 5 to 10 knots. Seas 1 foot or less.
Wave Detail: Southeast 1 foot at 3 seconds. Patchy fog in the
morning.
.MONDAY NIGHT...Southeast winds 5 to 10 knots. Seas 1 foot or
less. Wave Detail: Southeast 1 foot at 3 seconds.
.TUESDAY...Southeast winds 5 to 10 knots. Seas around 2 feet.
Wave Detail: Southeast 1 foot at 3 seconds.
.TUESDAY NIGHT...Southeast winds 5 to 10 knots. Seas 1 to 2 feet.
Wave Detail: Southeast 1 foot at 3 seconds.
.WEDNESDAY...Southeast winds 5 to 10 knots. Seas 1 foot or less,
then around 2 feet in the afternoon. Wave Detail: Southeast
1 foot at 3 seconds.
.WEDNESDAY NIGHT...Southeast winds around 10 knots. Seas around
2 feet.
.THURSDAY...Southeast winds 10 to 15 knots. Seas around 2 feet. A
chance of showers in the afternoon.
.THURSDAY NIGHT...Southeast winds 10 to 15 knots. Seas 2 to
3 feet. A chance of showers with a slight chance of
thunderstorms.
.FRIDAY...South winds 5 to 10 knots. Seas 2 to 3 feet. A chance
of showers.
.FRIDAY NIGHT...South winds 5 to 10 knots. Seas around 2 feet. A
chance of showers. A slight chance of thunderstorms after
midnight.

Winds and seas higher in and near thunderstorms.

$$

GMZ470-172000-
Coastal waters from Cameron LA to High Island TX from 20 to 60 NM-
1149 PM CST Sun Nov 16 2025

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

Winds and seas higher in and near thunderstorms.

$$

GMZ472-172000-
Coastal waters from Intracoastal City to Cameron LA from 20 to
60 NM-
1149 PM CST Sun Nov 16 2025

.OVERNIGHT...South winds 5 to 10 knots. Seas around 2 feet. Wave
Detail: South 1 foot at 6 seconds.
.MONDAY...Southeast winds 5 to 10 knots. Seas around 2 feet. Wave
Detail: Southeast 2 feet at 5 seconds.
.MONDAY NIGHT...Southeast winds 10 to 15 knots. Seas 2 to 3 feet.
Wave Detail: Southeast 3 feet at 5 seconds.
.TUESDAY...Southeast winds around 10 knots. Seas 2 to 3 feet.
Wave Detail: South 2 feet at 5 seconds.
.TUESDAY NIGHT...Southeast winds 5 to 10 knots. Seas 2 to 3 feet.
Wave Detail: South 2 feet at 6 seconds.
.WEDNESDAY...Southeast winds 5 to 10 knots. Seas around 2 feet.
Wave Detail: South 2 feet at 5 seconds.
.WEDNESDAY NIGHT...Southeast winds 10 to 15 knots. Seas 2 to
3 feet.
.THURSDAY...Southeast winds 10 to 15 knots. Seas 3 to 4 feet. A
slight chance of showers in the morning, then a chance of showers
with a slight chance of thunderstorms in the afternoon.
.THURSDAY NIGHT...South winds around 15 knots. Seas 3 to 5 feet,
occasionally to 6 feet. A chance of showers with a slight chance
of thunderstorms.
.FRIDAY...South winds 10 to 15 knots. Seas 3 to 5 feet,
occasionally to 6 feet. A slight chance of thunderstorms. Showers
likely, mainly in the morning.
.FRIDAY NIGHT...Southwest winds around 10 knots. Seas 3 to
4 feet. A chance of showers. A slight chance of thunderstorms
after midnight.

Winds and seas higher in and near thunderstorms.

$$

GMZ475-172000-
Coastal waters from Lower Atchafalaya River to Intracoastal City
LA from 20 to 60 NM-
1149 PM CST Sun Nov 16 2025

.OVERNIGHT...South winds around 5 knots. Seas around 2 feet. Wave
Detail: Southwest 1 foot at 4 seconds and southeast 1 foot at
6 seconds.
.MONDAY...Southeast winds 5 to 10 knots. Seas around 2 feet. Wave
Detail: South 1 foot at 5 seconds.
.MONDAY NIGHT...Southeast winds 10 to 15 knots. Seas 2 to 3 feet.
Wave Detail: Southeast 3 feet at 5 seconds.
.TUESDAY...Southeast winds around 10 knots. Seas 2 to 3 feet.
Wave Detail: Southeast 3 feet at 5 seconds.
.TUESDAY NIGHT...Southeast winds around 10 knots. Seas around
2 feet. Wave Detail: South 2 feet at 6 seconds.
.WEDNESDAY...Southeast winds 5 to 10 knots. Seas 2 to 3 feet.
Wave Detail: South 3 feet at 6 seconds.
.WEDNESDAY NIGHT...Southeast winds 10 to 15 knots. Seas 2 to
3 feet.
.THURSDAY...Southeast winds 10 to 15 knots. Seas 2 to 4 feet. A
slight chance of showers in the morning, then a chance of showers
in the afternoon.
.THURSDAY NIGHT...South 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...South winds 10 to 15 knots. Seas 3 to 5 feet,
occasionally to 6 feet. A chance of showers.
.FRIDAY NIGHT...South winds around 10 knots. Seas 3 to 4 feet. A
chance of showers. A slight chance of thunderstorms after
midnight.

Winds and seas higher in and near thunderstorms.

$$