Coastal Waters Forecast
Issued by NWS Lake Charles, LA

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FZUS54 KLCH 240729
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Coastal Waters Forecast
National Weather Service Lake Charles LA
229 AM CDT Tue Jun 24 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.

GMZ400-242215-
229 AM CDT Tue Jun 24 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...

A subtropical surface high centered off the southeast U.S. coast
will ridge into the coastal waters during the week with mainly
light east to southeast winds the result with relatively low seas.
A surge of moisture will increase showers and thunderstorms today,
with a daily chance for showers and thunderstorms continuing this
week. Winds and seas will be higher in and near the storms.

$$

GMZ430-242215-
Sabine Lake-
229 AM CDT Tue Jun 24 2025

.TODAY...East winds 5 to 10 knots, becoming southeast late. Lake
waters light chop. A slight chance of showers and thunderstorms
early this morning, then a chance of showers and thunderstorms
late this morning and early afternoon. Showers and thunderstorms
likely late.
.TONIGHT...East winds 5 to 10 knots. Lake waters light chop.
Showers and thunderstorms likely, mainly in the evening.
.WEDNESDAY...Southeast winds 5 to 10 knots. Lake waters light
chop. A chance of thunderstorms. Showers likely, mainly in the
morning.
.WEDNESDAY NIGHT...South winds 5 to 10 knots, becoming southeast
after midnight. Lake waters light chop.
.THURSDAY...East winds around 5 knots, becoming southeast in the
afternoon. Lake waters light chop. A slight chance of showers and
thunderstorms.
.THURSDAY 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.
.FRIDAY...Southeast winds around 5 knots, increasing to 5 to
10 knots in the afternoon. Lake waters light chop. A slight
chance of showers and thunderstorms.
.FRIDAY NIGHT...South winds 5 to 10 knots, diminishing to around
5 knots after midnight. Lake waters light chop.
.SATURDAY...South winds around 5 knots, increasing to 5 to
10 knots in the afternoon. Lake waters light chop. A chance of
showers and thunderstorms.
.SATURDAY NIGHT...South winds 5 to 10 knots. Lake waters light
chop. A slight chance of showers and thunderstorms after
midnight.

Winds and waves higher in and near thunderstorms.

$$

GMZ432-242215-
Calcasieu Lake-
229 AM CDT Tue Jun 24 2025

.TODAY...East winds 5 to 10 knots, becoming southeast late. Lake
waters light chop. A slight chance of showers and thunderstorms
early this morning. A chance of showers and thunderstorms late
this morning and early afternoon, then showers and thunderstorms
likely late.
.TONIGHT...East winds 5 to 10 knots. Lake waters light chop. A
chance of showers. Thunderstorms likely, mainly in the evening.
.WEDNESDAY...East winds 5 to 10 knots, becoming southeast in the
afternoon. Lake waters light chop. A chance of showers and
thunderstorms.
.WEDNESDAY NIGHT...Southeast winds 5 to 10 knots. Lake waters
light chop.
.THURSDAY...Southeast winds 5 to 10 knots. Lake waters light
chop. A slight chance of showers and thunderstorms.
.THURSDAY 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.
.FRIDAY...Southeast winds 5 to 10 knots. Lake waters light chop.
A slight chance of showers and thunderstorms in the morning, then
a chance of showers and thunderstorms in the afternoon.
.FRIDAY NIGHT...South winds 5 to 10 knots. Lake waters light
chop. A slight chance of showers and thunderstorms.
.SATURDAY...South winds around 5 knots, increasing to 5 to
10 knots in the afternoon. Lake waters light chop. A chance of
showers and thunderstorms.
.SATURDAY NIGHT...South winds 5 to 10 knots. Lake waters light
chop. A slight chance of thunderstorms. A slight chance of
showers in the evening, then a chance of showers after midnight.

Winds and waves higher in and near thunderstorms.

$$

GMZ435-242215-
Vermilion and West Cote Blanche Bays-
229 AM CDT Tue Jun 24 2025

.TODAY...East winds 5 to 10 knots, becoming southeast this
afternoon. Bay waters light chop. A chance of showers and
thunderstorms this morning, then showers and thunderstorms likely
this afternoon.
.TONIGHT...East winds 5 to 10 knots. Bay waters light chop. A
chance of showers and thunderstorms.
.WEDNESDAY...East winds 5 to 10 knots, becoming southeast in the
afternoon. Bay waters light chop. A chance of showers and
thunderstorms.
.WEDNESDAY NIGHT...South winds 5 to 10 knots, becoming southeast
after midnight. Bay waters light chop. A slight chance of showers
and thunderstorms.
.THURSDAY...Northeast winds around 5 knots, becoming southeast 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.
.THURSDAY NIGHT...South winds around 5 knots. Bay waters smooth.
A chance of showers and thunderstorms.
.FRIDAY...East winds around 5 knots, becoming south 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.
.FRIDAY NIGHT...South winds 5 to 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...South winds 5 to 10 knots. Bay waters light chop. A
chance of showers and 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 chance of showers. A slight chance of thunderstorms in
the evening, then a chance of thunderstorms after midnight.

Winds and waves higher in and near thunderstorms.

$$

GMZ436-242215-
Atchafalaya and East Cote Blanche Bays-
229 AM CDT Tue Jun 24 2025

.TODAY...East winds 5 to 10 knots, becoming southeast this
afternoon. Bay waters light chop. A chance of showers and
thunderstorms this morning, then showers and thunderstorms likely
this afternoon.
.TONIGHT...East winds 5 to 10 knots. Bay waters light chop. A
chance of showers and thunderstorms.
.WEDNESDAY...East winds around 5 knots, becoming southeast in the
afternoon. Bay waters light chop. A chance of showers and
thunderstorms.
.WEDNESDAY NIGHT...South winds 5 to 10 knots, becoming southeast
after midnight. Bay waters light chop. A slight chance of showers
and thunderstorms.
.THURSDAY...Northeast winds around 5 knots, becoming south in the
afternoon. Bay waters smooth. A chance of showers and
thunderstorms.
.THURSDAY NIGHT...South winds around 5 knots. Bay waters smooth.
A chance of showers and thunderstorms.
.FRIDAY...Southeast winds around 5 knots. Bay waters smooth. A
slight chance of showers and thunderstorms in the morning, then a
chance of showers and thunderstorms in the afternoon.
.FRIDAY NIGHT...South winds around 5 knots. Bay waters smooth. A
chance of showers with a slight chance of thunderstorms.
.SATURDAY...South winds 5 to 10 knots. Bay waters light chop. A
chance of showers and 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 chance of showers with a slight chance of thunderstorms.

Winds and waves higher in and near thunderstorms.

$$

GMZ450-242215-
Coastal waters from Cameron LA to High Island TX out 20 NM-
229 AM CDT Tue Jun 24 2025

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

Winds and seas higher in and near thunderstorms.

$$

GMZ452-242215-
Coastal waters from Intracoastal City to Cameron LA out 20 NM-
229 AM CDT Tue Jun 24 2025

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

Winds and seas higher in and near thunderstorms.

$$

GMZ455-242215-
Coastal waters from Lower Atchafalaya River to Intracoastal City
LA out 20 NM-
229 AM CDT Tue Jun 24 2025

.TODAY...East winds around 10 knots, becoming southeast late.
Seas around 2 feet. Wave Detail: East 1 foot at 3 seconds. A
chance of thunderstorms this morning. Showers likely.
Thunderstorms likely this afternoon.
.TONIGHT...Southeast winds 5 to 10 knots. Seas around 2 feet.
Wave Detail: Southeast 1 foot at 3 seconds. A chance of showers
and thunderstorms.
.WEDNESDAY...East winds 5 to 10 knots. Seas around 2 feet. Wave
Detail: Southeast 1 foot at 2 seconds. A chance of showers and
thunderstorms.
.WEDNESDAY NIGHT...Southeast winds 5 to 10 knots. Seas around
2 feet in the evening, then 1 foot or less. Wave Detail:
Southeast 1 foot at 2 seconds. A slight chance of showers and
thunderstorms in the evening, then a chance of showers and
thunderstorms after midnight.
.THURSDAY...East winds around 5 knots. Seas 1 foot or less. A
chance of showers and thunderstorms.
.THURSDAY NIGHT...South winds around 5 knots. Seas 1 foot or
less. A chance of showers and thunderstorms.
.FRIDAY...Southeast winds around 5 knots. Seas 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. A slight chance of thunderstorms in the
evening, then a chance of thunderstorms after midnight.
.SATURDAY...South winds 5 to 10 knots. Seas 1 foot or less. A
chance of thunderstorms. A chance of showers in the morning, then
showers likely in the afternoon.
.SATURDAY NIGHT...South winds 5 to 10 knots. Seas around 2 feet.
A chance of showers. A slight chance of thunderstorms in the
evening, then a chance of thunderstorms after midnight.

Winds and seas higher in and near thunderstorms.

$$

GMZ470-242215-
Coastal waters from Cameron LA to High Island TX from 20 to 60 NM-
229 AM CDT Tue Jun 24 2025

.TODAY...East winds 5 to 10 knots. Seas 2 to 3 feet. Wave Detail:
South 2 feet at 6 seconds. A chance of thunderstorms.
.TONIGHT...Southeast winds around 10 knots. Seas 2 to 3 feet.
Wave Detail: Southeast 2 feet at 6 seconds. A chance of showers
and thunderstorms.
.WEDNESDAY...Southeast winds around 10 knots. Seas 2 to 3 feet.
Wave Detail: Southeast 2 feet at 5 seconds. A chance of
thunderstorms. Showers likely, mainly in the morning.
.WEDNESDAY NIGHT...Southeast winds 5 to 10 knots. Seas 2 to
3 feet. Wave Detail: Southeast 2 feet at 6 seconds. A slight
chance of showers and thunderstorms after midnight.
.THURSDAY...Southeast winds 5 to 10 knots. Seas around 2 feet.
Wave Detail: Southeast 2 feet at 6 seconds. A slight chance of
thunderstorms in the morning. A slight chance of showers.
.THURSDAY NIGHT...Southeast winds 5 to 10 knots. Seas around
2 feet. Wave Detail: Southeast 2 feet at 6 seconds. A slight
chance of showers and thunderstorms after midnight.
.FRIDAY...Southeast winds 5 to 10 knots. Seas around 2 feet. A
slight chance of thunderstorms. A chance of showers, mainly in
the morning.
.FRIDAY NIGHT...Southeast winds around 10 knots. Seas around
2 feet. A slight chance of showers and thunderstorms after
midnight.
.SATURDAY...South winds 5 to 10 knots. Seas around 2 feet. A
chance of showers with a slight chance of thunderstorms.
.SATURDAY NIGHT...South winds around 10 knots. Seas 2 to 3 feet.
A slight chance of showers in the evening, then a chance of
showers with a slight chance of thunderstorms after midnight.

Winds and seas higher in and near thunderstorms.

$$

GMZ472-242215-
Coastal waters from Intracoastal City to Cameron LA from 20 to
60 NM-
229 AM CDT Tue Jun 24 2025

.TODAY...East winds 10 to 15 knots. Seas 2 to 3 feet. Wave
Detail: South 2 feet at 5 seconds. A chance of thunderstorms. A
chance of showers early this morning, then showers likely late
this morning and afternoon.
.TONIGHT...Southeast winds 10 to 15 knots. Seas 2 to 3 feet. Wave
Detail: Southeast 3 feet at 5 seconds. A chance of thunderstorms.
A chance of showers in the evening, then showers likely after
midnight.
.WEDNESDAY...Southeast winds around 10 knots. Seas 2 to 3 feet.
Wave Detail: Southeast 3 feet at 6 seconds. A chance of
thunderstorms. Showers likely, mainly in the morning.
.WEDNESDAY NIGHT...Southeast winds 5 to 10 knots. Seas 2 to
3 feet. Wave Detail: Southeast 3 feet at 7 seconds. A slight
chance of showers and thunderstorms after midnight.
.THURSDAY...Southeast winds 5 to 10 knots. Seas around 2 feet.
Wave Detail: South 2 feet at 6 seconds. A chance of showers and
thunderstorms, mainly in the morning.
.THURSDAY NIGHT...Southeast winds 5 to 10 knots. Seas around
2 feet. Wave Detail: Southeast 2 feet at 6 seconds. A slight
chance of thunderstorms. A slight chance of showers in the
evening, then a chance of showers after midnight.
.FRIDAY...Southeast winds 5 to 10 knots. Seas around 2 feet. A
chance of showers with a slight chance of thunderstorms.
.FRIDAY NIGHT...Southeast winds around 10 knots. Seas around
2 feet. A slight chance of showers in the evening, then a chance
of showers with a slight chance of thunderstorms after midnight.
.SATURDAY...South winds 5 to 10 knots. Seas around 2 feet. A
chance of showers and thunderstorms.
.SATURDAY NIGHT...South 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.

$$

GMZ475-242215-
Coastal waters from Lower Atchafalaya River to Intracoastal City
LA from 20 to 60 NM-
229 AM CDT Tue Jun 24 2025

.TODAY...East winds 10 to 15 knots. Seas 2 to 3 feet. Wave
Detail: Southeast 3 feet at 6 seconds. A chance of thunderstorms.
.TONIGHT...Southeast winds 10 to 15 knots. Seas 2 to 3 feet. Wave
Detail: South 3 feet at 5 seconds. A chance of thunderstorms. A
chance of showers in the evening, then showers likely after
midnight.
.WEDNESDAY...East winds around 10 knots. Seas 2 to 3 feet. Wave
Detail: Southeast 3 feet at 6 seconds. Showers likely with a
chance of thunderstorms in the morning, then a slight chance of
showers and thunderstorms in the afternoon.
.WEDNESDAY NIGHT...Southeast winds 5 to 10 knots. Seas 2 to
3 feet. Wave Detail: Southeast 3 feet at 7 seconds. A chance of
showers with a slight chance of thunderstorms after midnight.
.THURSDAY...East winds 5 to 10 knots. Seas around 2 feet. Wave
Detail: South 2 feet at 6 seconds. A chance of showers and
thunderstorms, mainly in the morning.
.THURSDAY NIGHT...Southeast winds 5 to 10 knots. Seas around
2 feet. Wave Detail: South 2 feet at 6 seconds. A slight chance
of thunderstorms. A slight chance of showers in the evening, then
a chance of showers after midnight.
.FRIDAY...Southeast winds 5 to 10 knots. Seas around 2 feet. A
chance of showers with a slight chance of thunderstorms.
.FRIDAY NIGHT...Southeast winds 5 to 10 knots. Seas around
2 feet. A slight chance of showers in the evening, then a chance
of showers with a slight chance of thunderstorms after midnight.
.SATURDAY...South winds 5 to 10 knots. Seas around 2 feet. A
chance of thunderstorms. A chance of showers in the morning, then
showers likely in the afternoon.
.SATURDAY NIGHT...South winds around 10 knots. Seas 2 to 3 feet.
A chance of showers with a slight chance of thunderstorms.

Winds and seas higher in and near thunderstorms.

$$