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FZUS54 KLCH 061805
CWFLCH

Coastal Waters Forecast
National Weather Service Lake Charles LA
105 PM CDT Sun Jul 6 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.

GMZ400-070700-
105 PM CDT Sun Jul 6 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...

The chance for scattered afternoon convection begins to increase
slightly as an upper low moves overhead. Rain chances then
decrease some through the midweek as the upper low weakens and
dissipates, with typical summertime convection expected each day.
Winds and seas will remain weak / low through the week.

$$

GMZ430-070700-
Sabine Lake-
105 PM CDT Sun Jul 6 2025

.TONIGHT...Southwest winds 5 to 10 knots, diminishing to around
5 knots after midnight. Lake waters light chop.
.MONDAY...South winds around 5 knots, increasing to 5 to 10 knots
in the afternoon. Lake waters light chop. A chance of showers and
thunderstorms.
.MONDAY NIGHT...South winds 5 to 10 knots, diminishing to around
5 knots after midnight. Lake waters light chop. A slight chance
of showers and thunderstorms after midnight.
.TUESDAY...South winds around 5 knots, increasing to 5 to
10 knots in the afternoon. Lake waters light chop. Showers
likely. A chance of thunderstorms in the morning, then
thunderstorms likely in the afternoon.
.TUESDAY NIGHT...South winds 5 to 10 knots. Lake waters light
chop. A slight chance of showers after midnight.
.WEDNESDAY...Southwest winds around 5 knots, increasing to 5 to
10 knots in the afternoon. Lake waters light chop. A chance of
showers and thunderstorms.
.WEDNESDAY NIGHT...Southwest winds 5 to 10 knots. Lake waters
light chop. A chance of showers with a slight chance of
thunderstorms after midnight.
.THURSDAY...Southwest winds 5 to 10 knots. Lake waters light
chop. A chance of showers and thunderstorms.
.THURSDAY NIGHT...Southwest winds 5 to 10 knots. Lake waters
light chop.
.FRIDAY...South winds 5 to 10 knots. Lake waters light chop. A
slight chance of showers and thunderstorms.
.FRIDAY NIGHT...South winds 5 to 10 knots. Lake waters light
chop.

Winds and waves higher in and near thunderstorms.

$$

GMZ432-070700-
Calcasieu Lake-
105 PM CDT Sun Jul 6 2025

.TONIGHT...Southwest winds around 10 knots, diminishing to around
5 knots late this evening and overnight. Lake waters light chop.
.MONDAY...South winds around 5 knots, increasing to 5 to 10 knots
in the afternoon. Lake waters light chop. A chance of showers and
thunderstorms.
.MONDAY NIGHT...South winds 5 to 10 knots. Lake waters light
chop. A chance of showers and thunderstorms, mainly in the
evening.
.TUESDAY...Southwest winds around 5 knots, becoming south in the
afternoon. Lake waters light chop. Showers likely. A chance of
thunderstorms in the morning, then thunderstorms likely in the
afternoon.
.TUESDAY NIGHT...Southwest winds 5 to 10 knots. Lake waters light
chop. A slight chance of showers and thunderstorms after
midnight.
.WEDNESDAY...Southwest winds 5 to 10 knots. Lake waters light
chop. A chance of thunderstorms. Showers likely, mainly in the
morning.
.WEDNESDAY NIGHT...Southwest winds 5 to 10 knots. Lake waters
light chop. A chance of showers and thunderstorms after midnight.
.THURSDAY...Southwest winds 5 to 10 knots. Lake waters light
chop. A chance of showers and thunderstorms.
.THURSDAY NIGHT...Southwest winds 5 to 10 knots. Lake waters
light chop. A slight chance of showers and thunderstorms after
midnight.
.FRIDAY...Southwest winds 5 to 10 knots. Lake waters light chop.
A chance of showers and thunderstorms.
.FRIDAY NIGHT...South winds 5 to 10 knots. Lake waters light
chop.

Winds and waves higher in and near thunderstorms.

$$

GMZ435-070700-
Vermilion and West Cote Blanche Bays-
105 PM CDT Sun Jul 6 2025

.TONIGHT...Southwest winds 5 to 10 knots, diminishing to around
5 knots after midnight. Bay waters light chop. A chance of
showers and thunderstorms early this evening. A slight chance of
showers and thunderstorms late.
.MONDAY...South winds around 5 knots. Bay waters smooth. A chance
of showers and thunderstorms in the morning, then showers and
thunderstorms likely in the afternoon.
.MONDAY NIGHT...Southwest winds 5 to 10 knots. Bay waters light
chop. A chance of showers and thunderstorms, mainly in the
evening.
.TUESDAY...Southwest winds around 5 knots, becoming south in the
afternoon. Bay waters light chop. Showers likely. A chance of
thunderstorms in the morning, then thunderstorms likely in the
afternoon.
.TUESDAY NIGHT...Southwest winds 5 to 10 knots. Bay waters light
chop. A slight chance of showers and thunderstorms after
midnight.
.WEDNESDAY...Southwest winds 5 to 10 knots. Bay waters light
chop. Showers likely with a chance of thunderstorms.
.WEDNESDAY NIGHT...Southwest winds 5 to 10 knots. Bay waters
light chop. A chance of showers and thunderstorms after midnight.
.THURSDAY...Southwest winds 5 to 10 knots. Bay waters light chop.
Showers likely. A chance of thunderstorms in the morning, then
thunderstorms likely in the afternoon.
.THURSDAY NIGHT...Southwest winds around 10 knots. Bay waters
light chop. A chance of showers and thunderstorms after midnight.
.FRIDAY...Southwest winds 5 to 10 knots. Bay waters light chop. A
chance of showers and thunderstorms.
.FRIDAY NIGHT...South winds 5 to 10 knots. Bay waters light chop.
A slight chance of showers and thunderstorms after midnight.

Winds and waves higher in and near thunderstorms.

$$

GMZ436-070700-
Atchafalaya and East Cote Blanche Bays-
105 PM CDT Sun Jul 6 2025

.TONIGHT...Southwest winds around 5 knots. Bay waters smooth. A
chance of showers and thunderstorms early this evening. A slight
chance of showers and thunderstorms after midnight, then a chance
of showers and thunderstorms late.
.MONDAY...South winds around 5 knots. Bay waters smooth. A chance
of showers and thunderstorms in the morning, then showers and
thunderstorms likely in the afternoon.
.MONDAY NIGHT...Southwest winds around 5 knots. Bay waters
smooth. A chance of showers. A chance of thunderstorms, mainly in
the evening.
.TUESDAY...Southwest winds around 5 knots. Bay waters smooth.
Showers likely. A chance of thunderstorms in the morning, then
thunderstorms likely in the afternoon.
.TUESDAY NIGHT...Southwest winds 5 to 10 knots. Bay waters light
chop. A slight chance of showers and thunderstorms after
midnight.
.WEDNESDAY...Southwest winds 5 to 10 knots. Bay waters light
chop. Showers likely with a chance of thunderstorms.
.WEDNESDAY NIGHT...Southwest winds 5 to 10 knots. Bay waters
light chop. A chance of showers and thunderstorms after midnight.
.THURSDAY...Southwest winds 5 to 10 knots. Bay waters light chop.
Showers likely. A chance of thunderstorms in the morning, then
thunderstorms likely in the afternoon.
.THURSDAY NIGHT...Southwest winds 5 to 10 knots. Bay waters light
chop. A chance of showers and thunderstorms after midnight.
.FRIDAY...Southwest winds 5 to 10 knots. Bay waters light chop. A
chance of showers and thunderstorms.
.FRIDAY NIGHT...South winds 5 to 10 knots. Bay waters light chop.
A slight chance of showers and thunderstorms after midnight.

Winds and waves higher in and near thunderstorms.

$$

GMZ450-070700-
Coastal waters from Cameron LA to High Island TX out 20 NM-
105 PM CDT Sun Jul 6 2025

.TONIGHT...South winds 5 to 10 knots. Seas 1 foot or less. Wave
Detail: South 1 foot at 4 seconds.
.MONDAY...South winds 5 to 10 knots. Seas 1 foot or less. Wave
Detail: South 1 foot at 4 seconds. A chance of showers and
thunderstorms.
.MONDAY NIGHT...South winds around 10 knots. Seas 1 foot or less,
then around 2 feet after midnight. Wave Detail: South 1 foot at
4 seconds, becoming south 2 feet at 4 seconds. A chance of
showers and thunderstorms after midnight.
.TUESDAY...South winds 5 to 10 knots. Seas around 2 feet. Wave
Detail: South 2 feet at 5 seconds. A chance of thunderstorms.
Showers likely, mainly in the morning.
.TUESDAY NIGHT...South winds around 10 knots. Seas around 2 feet.
Wave Detail: South 2 feet at 6 seconds. A slight chance of
showers and thunderstorms after midnight.
.WEDNESDAY...Southwest winds 5 to 10 knots. Seas around 2 feet.
Wave Detail: South 2 feet at 6 seconds. A chance of showers and
thunderstorms.
.WEDNESDAY NIGHT...Southwest winds 10 to 15 knots. Seas around
2 feet. A chance of showers and thunderstorms after midnight.
.THURSDAY...Southwest winds 10 to 15 knots. Seas around 2 feet. A
chance of showers and thunderstorms.
.THURSDAY NIGHT...South winds 10 to 15 knots. Seas 2 to 3 feet. A
slight chance of showers and thunderstorms after midnight.
.FRIDAY...South winds 10 to 15 knots. Seas 2 to 3 feet. A slight
chance of showers and thunderstorms.
.FRIDAY NIGHT...South winds 10 to 15 knots. Seas around 2 feet. A
slight chance of showers and thunderstorms after midnight.

Winds and seas higher in and near thunderstorms.

$$

GMZ452-070700-
Coastal waters from Intracoastal City to Cameron LA out 20 NM-
105 PM CDT Sun Jul 6 2025

.TONIGHT...Southwest winds 5 to 10 knots. Seas 1 foot or less.
Wave Detail: Southwest 1 foot at 4 seconds. A slight chance of
showers and thunderstorms early this evening. A slight chance of
showers and thunderstorms late.
.MONDAY...South winds 5 to 10 knots. Seas 1 foot or less. Wave
Detail: Southwest 1 foot at 4 seconds. A chance of thunderstorms.
Showers likely, mainly in the morning.
.MONDAY NIGHT...South winds 5 to 10 knots. Seas 1 foot or less.
Wave Detail: South 1 foot at 4 seconds. A slight chance of
showers and thunderstorms in the evening, then a chance of
showers and thunderstorms after midnight.
.TUESDAY...South winds 5 to 10 knots. Seas 1 foot or less. Wave
Detail: South 1 foot at 5 seconds. Showers likely with a chance
of thunderstorms.
.TUESDAY NIGHT...Southwest winds 5 to 10 knots. Seas around
2 feet. Wave Detail: South 2 feet at 6 seconds. A chance of
showers and thunderstorms after midnight.
.WEDNESDAY...Southwest winds 5 to 10 knots. Seas around 2 feet.
Wave Detail: South 2 feet at 6 seconds. A chance of
thunderstorms. Showers likely, mainly in the morning.
.WEDNESDAY NIGHT...Southwest winds around 10 knots. Seas around
2 feet. A chance of showers and thunderstorms after midnight.
.THURSDAY...Southwest winds around 10 knots. Seas around 2 feet.
A chance of thunderstorms. Showers likely, mainly in the morning.
.THURSDAY NIGHT...Southwest winds 10 to 15 knots. Seas around
2 feet. A chance of showers and thunderstorms after midnight.
.FRIDAY...Southwest winds 10 to 15 knots. Seas around 2 feet. A
chance of showers and thunderstorms.
.FRIDAY NIGHT...South winds 10 to 15 knots. Seas around 2 feet. A
slight chance of showers and thunderstorms after midnight.

Winds and seas higher in and near thunderstorms.

$$

GMZ455-070700-
Coastal waters from Lower Atchafalaya River to Intracoastal City
LA out 20 NM-
105 PM CDT Sun Jul 6 2025

.TONIGHT...Southwest winds around 5 knots. Seas 1 foot or less.
Wave Detail: Southwest 1 foot at 4 seconds. A chance of
thunderstorms with a slight chance of showers early this evening.
A slight chance of showers and thunderstorms after midnight, then
a chance of showers and thunderstorms late.
.MONDAY...South winds around 5 knots. Seas 1 foot or less. Wave
Detail: Southwest 1 foot at 4 seconds. A chance of thunderstorms.
A chance of showers in the morning, then showers likely in the
afternoon.
.MONDAY NIGHT...Southwest winds around 5 knots. Seas 1 foot or
less. Wave Detail: Southwest 1 foot at 3 seconds. A chance of
showers and thunderstorms after midnight.
.TUESDAY...South winds around 5 knots. Seas 1 foot or less. Wave
Detail: South 1 foot at 3 seconds. A chance of thunderstorms.
Showers likely, mainly in the morning.
.TUESDAY NIGHT...Southwest winds around 5 knots. Seas 1 foot or
less, then 1 to 2 feet after midnight. Wave Detail: South 1 foot
at 4 seconds, becoming southwest 1 foot at 3 seconds. A chance of
showers and thunderstorms after midnight.
.WEDNESDAY...Southwest winds 5 to 10 knots. Seas around 2 feet in
the morning, then 1 foot or less. A chance of thunderstorms.
Showers likely, mainly in the morning.
.WEDNESDAY NIGHT...Southwest winds 5 to 10 knots. Seas 1 foot or
less, then around 2 feet after midnight. A chance of showers and
thunderstorms after midnight.
.THURSDAY...Southwest winds 5 to 10 knots. Seas around 2 feet. A
chance of thunderstorms. Showers likely, mainly in the morning.
.THURSDAY NIGHT...Southwest winds around 10 knots. Seas around
2 feet. A chance of showers and thunderstorms after midnight.
.FRIDAY...Southwest winds 5 to 10 knots. Seas around 2 feet in
the morning, then 1 foot or less. A chance of showers and
thunderstorms.
.FRIDAY NIGHT...South winds 5 to 10 knots. Seas 1 foot or less. A
chance of showers and thunderstorms after midnight.

Winds and seas higher in and near thunderstorms.

$$

GMZ470-070700-
Coastal waters from Cameron LA to High Island TX from 20 to 60 NM-
105 PM CDT Sun Jul 6 2025

.TONIGHT...South winds 5 to 10 knots. Seas around 2 feet this
evening, then 1 foot or less. Wave Detail: South 2 feet at
5 seconds, becoming south 1 foot at 4 seconds.
.MONDAY...South winds 5 to 10 knots. Seas 1 foot or less. Wave
Detail: South 1 foot at 4 seconds. A chance of showers and
thunderstorms.
.MONDAY NIGHT...South winds 5 to 10 knots. Seas around 2 feet.
Wave Detail: South 2 feet at 5 seconds. A chance of showers and
thunderstorms after midnight.
.TUESDAY...South winds 5 to 10 knots. Seas around 2 feet. Wave
Detail: South 2 feet at 5 seconds. A chance of thunderstorms.
Showers likely, mainly in the morning.
.TUESDAY NIGHT...South winds 5 to 10 knots. Seas 2 to 3 feet.
Wave Detail: South 3 feet at 6 seconds. A chance of showers with
a slight chance of thunderstorms after midnight.
.WEDNESDAY...Southwest winds 5 to 10 knots. Seas 2 to 3 feet.
Wave Detail: South 3 feet at 7 seconds. A chance of showers and
thunderstorms.
.WEDNESDAY NIGHT...Southwest winds around 10 knots. Seas 2 to
3 feet. A chance of showers and thunderstorms after midnight.
.THURSDAY...Southwest winds around 10 knots. Seas 2 to 3 feet. A
chance of showers and thunderstorms, mainly in the morning.
.THURSDAY NIGHT...South winds 10 to 15 knots. Seas 2 to 3 feet. A
slight chance of showers and thunderstorms after midnight.
.FRIDAY...South winds around 10 knots. Seas 2 to 3 feet. A chance
of showers and thunderstorms, mainly in the morning.
.FRIDAY NIGHT...South winds around 10 knots. Seas 2 to 3 feet. A
slight chance of showers and thunderstorms after midnight.

Winds and seas higher in and near thunderstorms.

$$

GMZ472-070700-
Coastal waters from Intracoastal City to Cameron LA from 20 to
60 NM-
105 PM CDT Sun Jul 6 2025

.TONIGHT...South winds 5 to 10 knots. Seas 1 foot or less. Wave
Detail: Southwest 1 foot at 5 seconds. A slight chance of showers
and thunderstorms late.
.MONDAY...South winds around 5 knots. Seas 1 foot or less. Wave
Detail: Southwest 1 foot at 4 seconds. A chance of showers and
thunderstorms.
.MONDAY NIGHT...South winds 5 to 10 knots. Seas 1 foot or less,
then around 2 feet after midnight. Wave Detail: South 1 foot at
4 seconds, becoming south 1 foot at 5 seconds. A chance of
showers and thunderstorms after midnight.
.TUESDAY...South winds 5 to 10 knots. Seas around 2 feet. Wave
Detail: South 2 feet at 6 seconds. A chance of thunderstorms.
Showers likely, mainly in the morning.
.TUESDAY NIGHT...South winds 5 to 10 knots. Seas 2 to 3 feet.
Wave Detail: South 3 feet at 6 seconds. A chance of showers with
a slight chance of thunderstorms after midnight.
.WEDNESDAY...Southwest winds 5 to 10 knots. Seas 2 to 3 feet.
Wave Detail: South 3 feet at 7 seconds. A chance of
thunderstorms. Showers likely, mainly in the morning.
.WEDNESDAY NIGHT...Southwest winds 5 to 10 knots. Seas around
2 feet. A chance of showers and thunderstorms after midnight.
.THURSDAY...Southwest winds around 10 knots. Seas around 2 feet.
A chance of thunderstorms. Showers likely, mainly in the morning.
.THURSDAY NIGHT...South winds 10 to 15 knots. Seas around 2 feet.
A slight chance of showers and thunderstorms after midnight.
.FRIDAY...South winds around 10 knots. Seas around 2 feet. A
chance of showers and thunderstorms.
.FRIDAY NIGHT...South winds 10 to 15 knots. Seas around 2 feet. A
slight chance of showers and thunderstorms after midnight.

Winds and seas higher in and near thunderstorms.

$$

GMZ475-070700-
Coastal waters from Lower Atchafalaya River to Intracoastal City
LA from 20 to 60 NM-
105 PM CDT Sun Jul 6 2025

.TONIGHT...Southwest winds around 5 knots. Seas 1 foot or less.
Wave Detail: Southwest 1 foot at 4 seconds. A slight chance of
showers and thunderstorms after midnight. A chance of showers
with a slight chance of thunderstorms late.
.MONDAY...South winds around 5 knots. Seas 1 foot or less. Wave
Detail: Southwest 1 foot at 4 seconds. A chance of showers and
thunderstorms.
.MONDAY NIGHT...South winds around 5 knots. Seas 1 foot or less.
Wave Detail: South 1 foot at 4 seconds. A chance of showers and
thunderstorms after midnight.
.TUESDAY...South winds around 5 knots. Seas around 2 feet. Wave
Detail: South 1 foot at 6 seconds. A chance of thunderstorms.
Showers likely, mainly in the morning.
.TUESDAY NIGHT...South winds around 5 knots. Seas 2 to 3 feet.
Wave Detail: South 3 feet at 6 seconds. A chance of showers with
a slight chance of thunderstorms after midnight.
.WEDNESDAY...Southwest winds around 5 knots. Seas 2 to 3 feet.
Wave Detail: South 3 feet at 7 seconds. A chance of
thunderstorms. Showers likely, mainly in the morning.
.WEDNESDAY NIGHT...Southwest winds 5 to 10 knots. Seas around
2 feet. A chance of showers and thunderstorms after midnight.
.THURSDAY...Southwest winds 5 to 10 knots. Seas around 2 feet. A
chance of thunderstorms. Showers likely, mainly in the morning.
.THURSDAY NIGHT...South winds around 10 knots. Seas around
2 feet. A chance of showers with a slight chance of thunderstorms
after midnight.
.FRIDAY...South winds 5 to 10 knots. Seas around 2 feet. A chance
of showers. A chance of thunderstorms, mainly in the morning.
.FRIDAY NIGHT...South winds around 10 knots. Seas around 2 feet.
A chance of showers and thunderstorms after midnight.

Winds and seas higher in and near thunderstorms.

$$