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FZUS54 KLCH 151733
CWFLCH

Coastal Waters Forecast
National Weather Service Lake Charles LA
1233 PM CDT Tue Jul 15 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.

GMZ400-160600-
1233 PM CDT Tue Jul 15 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 extending across the northern Gulf will maintain
light onshore winds and low seas through tomorrow. Winds and seas
will increase Thursday through the weekend as a tropical
disturbance moves across the northern gulf. There is a 40%
chance of this disturbance strengthening into a tropical storm.
Regardless of development, gusty winds and widespread rain is
expected Thursday through Saturday.

$$

GMZ430-160600-
Sabine Lake-
1233 PM CDT Tue Jul 15 2025

.TONIGHT...Southwest winds 5 to 10 knots, diminishing to around
5 knots after midnight. Lake waters light chop.
.WEDNESDAY...West winds around 5 knots, becoming south in the
afternoon. Lake waters smooth.
.WEDNESDAY NIGHT...Southwest winds around 5 knots. Lake waters
smooth.
.THURSDAY...Northwest winds around 5 knots, becoming southwest in
the afternoon. Lake waters smooth. A slight chance of showers and
thunderstorms in the morning, then a chance of showers and
thunderstorms in the afternoon.
.THURSDAY NIGHT...West winds around 5 knots. Lake waters smooth.
A chance of thunderstorms. A chance of showers in the evening,
then showers likely after midnight.
.FRIDAY...West winds around 5 knots, becoming southwest in the
afternoon. Lake waters light chop. Showers with a chance of
thunderstorms in the morning, then showers and thunderstorms
likely in the afternoon.
.FRIDAY NIGHT...South winds 5 to 10 knots. Lake waters light
chop. A chance of showers and thunderstorms.
.SATURDAY...Southwest winds 5 to 10 knots. Lake waters light
chop. A chance of thunderstorms. A chance of showers.
.SATURDAY NIGHT...South winds 5 to 10 knots. Lake waters light
chop.
.SUNDAY...Southwest winds 5 to 10 knots. Lake waters light chop.
A slight chance of showers and thunderstorms.
.SUNDAY NIGHT...South winds 5 to 10 knots. Lake waters light
chop.

Winds and waves higher in and near thunderstorms.

$$

GMZ432-160600-
Calcasieu Lake-
1233 PM CDT Tue Jul 15 2025

.TONIGHT...Southwest winds 5 to 10 knots, becoming west late.
Lake waters light chop.
.WEDNESDAY...Northwest winds around 5 knots, becoming south in
the afternoon. Lake waters smooth.
.WEDNESDAY NIGHT...Southwest winds around 5 knots. Lake waters
smooth. A slight chance of showers and thunderstorms after
midnight.
.THURSDAY...Northwest winds around 5 knots, becoming west in the
afternoon. Lake waters smooth. A chance of showers and
thunderstorms in the morning, then showers and thunderstorms
likely in the afternoon.
.THURSDAY NIGHT...West winds around 5 knots. Lake waters smooth.
A chance of showers and thunderstorms in the evening, then
showers and thunderstorms likely after midnight.
.FRIDAY...West winds 5 to 10 knots, becoming southwest in the
afternoon. Lake waters light chop. Showers with a chance of
thunderstorms in the morning, then showers and thunderstorms
likely in the afternoon.
.FRIDAY NIGHT...Southwest winds 5 to 10 knots. Lake waters light
chop. A chance of thunderstorms. A chance of showers.
.SATURDAY...Southwest winds 5 to 10 knots. Lake waters light
chop. A chance of thunderstorms. Showers likely, mainly in the
morning.
.SATURDAY NIGHT...South winds 5 to 10 knots. Lake waters light
chop.
.SUNDAY...Southwest winds 5 to 10 knots. Lake waters light chop.
A slight chance of showers and thunderstorms.
.SUNDAY NIGHT...South winds 5 to 10 knots. Lake waters light
chop.

Winds and waves higher in and near thunderstorms.

$$

GMZ435-160600-
Vermilion and West Cote Blanche Bays-
1233 PM CDT Tue Jul 15 2025

.TONIGHT...West winds 5 to 10 knots, becoming around 5 knots
late. Bay waters light chop.
.WEDNESDAY...Northwest winds around 5 knots, becoming west around
5 knots in the afternoon. Bay waters smooth. A slight chance of
showers and thunderstorms in the morning, then a chance of
showers and thunderstorms in the afternoon.
.WEDNESDAY NIGHT...Southwest winds around 5 knots, becoming
northwest after midnight. Bay waters light chop. A chance of
showers and thunderstorms in the evening, then showers and
thunderstorms likely after midnight.
.THURSDAY...North winds 5 to 10 knots. Bay waters light chop.
Showers likely with a chance of thunderstorms in the morning,
then showers and thunderstorms in the afternoon.
.THURSDAY NIGHT...North winds 5 to 10 knots, becoming west after
midnight. Bay waters light chop. Showers and thunderstorms likely
in the evening, then showers with a chance of thunderstorms after
midnight.
.FRIDAY...Southwest winds around 10 knots. Bay waters light chop.
Thunderstorms likely. Showers.
.FRIDAY NIGHT...Southwest winds around 10 knots. Bay waters light
chop. A chance of showers. A slight chance of thunderstorms in
the evening, then a chance of thunderstorms after midnight.
.SATURDAY...Southwest winds around 10 knots. Bay waters light
chop. Showers likely with a chance of thunderstorms in the
morning, then showers and thunderstorms likely in the afternoon.
.SATURDAY NIGHT...South winds 5 to 10 knots. Bay waters light
chop. A slight chance of showers and thunderstorms after
midnight.
.SUNDAY...Southwest winds 5 to 10 knots. Bay waters light chop. A
chance of showers and thunderstorms.
.SUNDAY NIGHT...Southwest winds 5 to 10 knots. Bay waters light
chop.

Winds and waves higher in and near thunderstorms.

$$

GMZ436-160600-
Atchafalaya and East Cote Blanche Bays-
1233 PM CDT Tue Jul 15 2025

.TONIGHT...West winds around 5 knots. Bay waters smooth.
.WEDNESDAY...Northwest winds around 5 knots. Bay waters smooth. A
chance of showers. A slight chance of thunderstorms in the
morning, then a chance of thunderstorms in the afternoon.
.WEDNESDAY NIGHT...Northwest winds around 5 knots. Bay waters
smooth. A chance of showers and thunderstorms in the evening,
then showers and thunderstorms likely after midnight.
.THURSDAY...North winds 5 to 10 knots. Bay waters light chop.
Showers and thunderstorms.
.THURSDAY NIGHT...Northwest winds 5 to 10 knots, becoming
southwest after midnight. Bay waters light chop. Showers and
thunderstorms likely in the evening, then showers with a chance
of thunderstorms after midnight.
.FRIDAY...Southwest winds around 10 knots. Bay waters light chop.
Thunderstorms likely. Showers.
.FRIDAY NIGHT...Southwest winds 5 to 10 knots. Bay waters light
chop. A chance of showers with a slight chance of thunderstorms
in the evening, then a chance of showers and thunderstorms after
midnight.
.SATURDAY...Southwest winds 5 to 10 knots. Bay waters light chop.
Showers likely with a chance of thunderstorms in the morning,
then showers and thunderstorms likely in the afternoon.
.SATURDAY NIGHT...South winds 5 to 10 knots. Bay waters light
chop. A slight chance of showers and thunderstorms after
midnight.
.SUNDAY...Southwest winds around 5 knots. Bay waters smooth. A
chance of showers and thunderstorms.
.SUNDAY NIGHT...Southwest winds around 5 knots. Bay waters
smooth. A slight chance of showers and thunderstorms after
midnight.

Winds and waves higher in and near thunderstorms.

$$

GMZ450-160600-
Coastal waters from Cameron LA to High Island TX out 20 NM-
1233 PM CDT Tue Jul 15 2025

.TONIGHT...Southwest winds 5 to 10 knots. Seas around 2 feet.
Wave Detail: South 2 feet at 5 seconds.
.WEDNESDAY...Southwest winds 5 to 10 knots. Seas around 2 feet.
Wave Detail: South 1 foot at 5 seconds.
.WEDNESDAY NIGHT...Southwest winds 5 to 10 knots. Seas around
2 feet. Wave Detail: South 2 feet at 5 seconds. A slight chance
of showers and thunderstorms after midnight.
.THURSDAY...Northwest winds 5 to 10 knots, becoming west in the
afternoon. Seas around 2 feet. Wave Detail: Southwest 1 foot at
4 seconds. A chance of showers and thunderstorms.
.THURSDAY NIGHT...Southwest winds 5 to 10 knots. Seas around
2 feet. Wave Detail: South 1 foot at 4 seconds. A chance of
showers and thunderstorms in the evening, then showers and
thunderstorms likely after midnight.
.FRIDAY...Southwest winds around 10 knots. Seas around 2 feet.
Wave Detail: Southwest 1 foot at 4 seconds. Showers with
thunderstorms likely in the morning, then showers likely with a
chance of thunderstorms in the afternoon.
.FRIDAY NIGHT...Southwest winds 10 to 15 knots. Seas around
2 feet. A chance of showers with a slight chance of thunderstorms
in the evening, then a chance of showers and thunderstorms after
midnight.
.SATURDAY...Southwest winds 10 to 15 knots. Seas around 2 feet. A
chance of showers and thunderstorms.
.SATURDAY NIGHT...South winds 10 to 15 knots. Seas 2 to 3 feet. A
slight chance of showers and thunderstorms after midnight.
.SUNDAY...Southwest winds around 10 knots. Seas around 2 feet. A
slight chance of showers and thunderstorms.
.SUNDAY NIGHT...South winds around 10 knots. Seas around 2 feet.

Winds and seas higher in and near thunderstorms.

$$

GMZ452-160600-
Coastal waters from Intracoastal City to Cameron LA out 20 NM-
1233 PM CDT Tue Jul 15 2025

.TONIGHT...Southwest winds 5 to 10 knots. Seas around 2 feet.
Wave Detail: South 1 foot at 5 seconds.
.WEDNESDAY...West 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.
.WEDNESDAY NIGHT...West winds 5 to 10 knots. Seas 1 foot or less,
then around 2 feet after midnight. Wave Detail: South 1 foot at
5 seconds. A slight chance of showers and thunderstorms in the
evening, then a chance of showers and thunderstorms after
midnight.
.THURSDAY...Northwest winds 5 to 10 knots. Seas around 2 feet in
the morning, then 1 foot or less. Wave Detail: West 1 foot at
3 seconds and south 1 foot at 5 seconds, becoming west 1 foot at
4 seconds. Thunderstorms likely. Showers.
.THURSDAY NIGHT...Northwest winds around 10 knots, becoming
southwest after midnight. Seas around 2 feet. Wave Detail:
Southwest 1 foot at 4 seconds. Thunderstorms likely. Showers.
.FRIDAY...Southwest winds around 10 knots. Seas around 2 feet.
Wave Detail: Southwest 2 feet at 4 seconds. Showers with
thunderstorms likely in the morning, then showers likely with a
chance of thunderstorms in the afternoon.
.FRIDAY NIGHT...Southwest winds 10 to 15 knots. Seas around
2 feet. A chance of thunderstorms. A chance of showers.
.SATURDAY...Southwest winds 10 to 15 knots. Seas around 2 feet. A
chance of thunderstorms. Showers likely, mainly in the morning.
.SATURDAY NIGHT...South winds around 10 knots. Seas around
2 feet. A slight chance of showers and thunderstorms after
midnight.
.SUNDAY...Southwest winds 5 to 10 knots. Seas around 2 feet. A
chance of showers and thunderstorms, mainly in the morning.
.SUNDAY NIGHT...South winds around 10 knots. Seas around 2 feet.
A slight chance of showers and thunderstorms after midnight.

Winds and seas higher in and near thunderstorms.

$$

GMZ455-160600-
Coastal waters from Lower Atchafalaya River to Intracoastal City
LA out 20 NM-
1233 PM CDT Tue Jul 15 2025

.TONIGHT...West winds around 5 knots. Seas 1 foot or less. Wave
Detail: West 1 foot at 3 seconds.
.WEDNESDAY...Northwest winds 5 to 10 knots. Seas 1 foot or less.
Wave Detail: Northwest 1 foot at 3 seconds. A chance of
thunderstorms. A chance of showers, mainly in the morning.
.WEDNESDAY NIGHT...Northwest winds 5 to 10 knots. Seas 1 foot or
less. Wave Detail: West 1 foot at 3 seconds. A chance of showers
and thunderstorms in the evening, then showers and thunderstorms
likely after midnight.
.THURSDAY...Northwest winds 5 to 10 knots. Seas 1 foot or less.
Wave Detail: Northwest 1 foot at 3 seconds. Showers and
thunderstorms.
.THURSDAY NIGHT...Northwest winds 5 to 10 knots, becoming
southwest after midnight. Seas 1 foot or less. Wave Detail: West
1 foot at 3 seconds. Thunderstorms likely. Showers likely in the
evening, then showers after midnight.
.FRIDAY...Southwest winds 10 to 15 knots. Seas 1 foot or less.
Wave Detail: Southwest 1 foot at 3 seconds. Showers with
thunderstorms likely in the morning, then showers likely with a
chance of thunderstorms in the afternoon.
.FRIDAY NIGHT...Southwest winds around 10 knots. Seas 1 foot or
less. A chance of thunderstorms. A chance of showers in the
evening, then showers likely after midnight.
.SATURDAY...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.
.SATURDAY NIGHT...South winds 5 to 10 knots. Seas 1 foot or less.
A chance of showers and thunderstorms after midnight.
.SUNDAY...Southwest winds 5 to 10 knots. Seas 1 foot or less. A
chance of showers and thunderstorms.
.SUNDAY NIGHT...South winds 5 to 10 knots. Seas 1 foot or less. A
slight chance of showers and thunderstorms after midnight.

Winds and seas higher in and near thunderstorms.

$$

GMZ470-160600-
Coastal waters from Cameron LA to High Island TX from 20 to 60 NM-
1233 PM CDT Tue Jul 15 2025

.TONIGHT...Southwest winds 5 to 10 knots. Seas around 2 feet.
Wave Detail: South 2 feet at 5 seconds.
.WEDNESDAY...Southwest winds around 5 knots. Seas around 2 feet.
Wave Detail: South 2 feet at 5 seconds.
.WEDNESDAY NIGHT...Southwest winds 5 to 10 knots. Seas around
2 feet. Wave Detail: South 2 feet at 5 seconds. A slight chance
of showers and thunderstorms after midnight.
.THURSDAY...Northwest winds 5 to 10 knots. Seas around 2 feet.
Wave Detail: South 2 feet at 5 seconds. A chance of showers and
thunderstorms.
.THURSDAY NIGHT...Southwest winds 5 to 10 knots. Seas around
2 feet. Wave Detail: South 1 foot at 5 seconds. A chance of
thunderstorms. A chance of showers in the evening, then showers
likely after midnight.
.FRIDAY...Southwest winds around 10 knots. Seas around 2 feet.
Wave Detail: Southwest 1 foot at 4 seconds. A chance of
thunderstorms. Showers, mainly in the morning.
.FRIDAY NIGHT...South winds 10 to 15 knots. Seas around 2 feet. A
slight chance of showers and thunderstorms in the evening, then a
chance of showers and thunderstorms after midnight.
.SATURDAY...Southwest winds around 10 knots. Seas around 2 feet.
A chance of showers and thunderstorms, mainly in the morning.
.SATURDAY NIGHT...South winds around 10 knots. Seas 2 to 3 feet.
.SUNDAY...South winds 5 to 10 knots. Seas 2 to 3 feet. A slight
chance of showers and thunderstorms.
.SUNDAY NIGHT...South winds around 10 knots. Seas 2 to 3 feet.

Winds and seas higher in and near thunderstorms.

$$

GMZ472-160600-
Coastal waters from Intracoastal City to Cameron LA from 20 to
60 NM-
1233 PM CDT Tue Jul 15 2025

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

Winds and seas higher in and near thunderstorms.

$$

GMZ475-160600-
Coastal waters from Lower Atchafalaya River to Intracoastal City
LA from 20 to 60 NM-
1233 PM CDT Tue Jul 15 2025

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

Winds and seas higher in and near thunderstorms.

$$