Coastal Waters Forecast
Issued by NWS Lake Charles, LA

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FZUS54 KLCH 122007
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Coastal Waters Forecast
National Weather Service Lake Charles LA
307 PM CDT Thu Jun 12 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.

GMZ400-130915-
307 PM CDT Thu Jun 12 2025

.SYNOPSIS...

Light to occasionally modest onshore flow and low seas will
persist through this week. Small craft should exercise caution.
Elevated thunderstorm chances will linger through the week and the
upcoming weekend which may cause locally higher winds and seas.

$$

GMZ430-130915-
Sabine Lake-
307 PM CDT Thu Jun 12 2025

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

Winds and waves higher in and near thunderstorms.

$$

GMZ432-130915-
Calcasieu Lake-
307 PM CDT Thu Jun 12 2025

.TONIGHT...South winds 10 to 15 knots. Lake waters choppy. A
chance of showers and thunderstorms early this evening, then a
slight chance of showers and thunderstorms late this evening and
early morning. Showers and thunderstorms likely late.
.FRIDAY...South winds 10 to 15 knots. Lake waters choppy. Showers
and thunderstorms likely, mainly in the morning.
.FRIDAY NIGHT...South winds around 10 knots. Lake waters light
chop. A slight chance of showers and thunderstorms after
midnight.
.SATURDAY...South winds around 10 knots. 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.
.SUNDAY...South winds 5 to 10 knots. Lake waters light chop. A
chance of showers and thunderstorms.
.SUNDAY NIGHT...South winds 5 to 10 knots. Lake waters light
chop. A slight chance of showers and thunderstorms after
midnight.
.MONDAY...South winds 5 to 10 knots. Lake waters light chop.
Showers likely with a chance of thunderstorms.
.MONDAY NIGHT...South winds 5 to 10 knots. Lake waters light
chop. A slight chance of showers and thunderstorms after
midnight.
.TUESDAY...South winds 5 to 10 knots. Lake waters light chop.
Showers likely with a chance of thunderstorms.
.TUESDAY NIGHT...South winds around 10 knots. Lake waters light
chop. A slight chance of showers and thunderstorms after
midnight.

Winds and waves higher in and near thunderstorms.

$$

GMZ435-130915-
Vermilion and West Cote Blanche Bays-
307 PM CDT Thu Jun 12 2025

.TONIGHT...South winds 10 to 15 knots. Bay waters choppy. A
chance of showers and thunderstorms early this evening, then a
slight chance of showers and thunderstorms late this evening. A
chance of showers and thunderstorms after midnight.
.FRIDAY...South winds 10 to 15 knots. Bay waters choppy. Showers
likely with a chance of thunderstorms.
.FRIDAY NIGHT...South winds around 10 knots. Bay waters light
chop. A slight chance of showers and thunderstorms.
.SATURDAY...South winds around 10 knots. Bay waters light chop. 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. Bay waters light
chop. A slight chance of showers and thunderstorms.
.SUNDAY...South winds 5 to 10 knots. Bay waters light chop. A
chance of thunderstorms. A chance of showers in the morning, then
showers likely in the afternoon.
.SUNDAY NIGHT...South winds 5 to 10 knots. Bay waters light chop.
A slight chance of showers and thunderstorms in the evening, then
a chance of showers and thunderstorms after midnight.
.MONDAY...South winds 5 to 10 knots. Bay waters light chop.
Showers likely with a slight chance of thunderstorms in the
morning, then showers with a chance of thunderstorms in the
afternoon.
.MONDAY NIGHT...South winds 5 to 10 knots. Bay waters light chop.
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. Bay waters light chop. A
chance of thunderstorms. Showers.
.TUESDAY NIGHT...South winds around 10 knots. Bay waters light
chop. A chance of showers and thunderstorms.

Winds and waves higher in and near thunderstorms.

$$

GMZ436-130915-
Atchafalaya and East Cote Blanche Bays-
307 PM CDT Thu Jun 12 2025

.TONIGHT...South winds 10 to 15 knots. Bay waters choppy. A
chance of showers. A chance of thunderstorms, mainly this
evening.
.FRIDAY...South winds 10 to 15 knots. Bay waters choppy. A chance
of thunderstorms. Showers likely, mainly in the morning.
.FRIDAY NIGHT...South winds 5 to 10 knots. Bay waters light chop.
A chance of showers and thunderstorms.
.SATURDAY...South winds 5 to 10 knots. Bay waters light chop. A
chance of thunderstorms. A chance of showers in the morning, then
showers likely in the afternoon.
.SATURDAY NIGHT...South winds around 5 knots. Bay waters smooth.
A slight chance of showers and thunderstorms in the evening, then
a chance of showers and thunderstorms after midnight.
.SUNDAY...South winds around 5 knots. Bay waters smooth. A chance
of thunderstorms. A chance of showers in the morning, then
showers likely in the afternoon.
.SUNDAY NIGHT...South winds around 5 knots. Bay waters smooth. A
slight chance of thunderstorms. A slight chance of showers in the
evening, then a chance of showers after midnight.
.MONDAY...South winds 5 to 10 knots. Bay waters light chop.
Showers likely with a slight chance of thunderstorms in the
morning, then showers with a chance of thunderstorms in the
afternoon.
.MONDAY NIGHT...South winds 5 to 10 knots. Bay waters light chop.
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. Bay waters light chop. A
chance of thunderstorms. Showers.
.TUESDAY NIGHT...South winds 5 to 10 knots. Bay waters light
chop. A chance of showers and thunderstorms.

Winds and waves higher in and near thunderstorms.

$$

GMZ450-130915-
Coastal waters from Cameron LA to High Island TX out 20 NM-
307 PM CDT Thu Jun 12 2025

...SMALL CRAFT EXERCISE CAUTION IN EFFECT THROUGH FRIDAY
MORNING...

.TONIGHT...South winds 15 to 20 knots. Seas 2 to 4 feet. Wave
Detail: South 4 feet at 5 seconds. A chance of showers and
thunderstorms early this evening, then a slight chance of showers
and thunderstorms late this evening and early morning. A chance
of showers and thunderstorms late.
.FRIDAY...South winds 15 to 20 knots. Seas 2 to 4 feet. Wave
Detail: South 4 feet at 5 seconds. Showers and thunderstorms
likely, mainly in the morning.
.FRIDAY NIGHT...South winds 10 to 15 knots. Seas 2 to 3 feet.
Wave Detail: South 3 feet at 6 seconds. A slight chance of
showers and thunderstorms.
.SATURDAY...South winds 10 to 15 knots. Seas 2 to 3 feet. Wave
Detail: South 3 feet at 5 seconds. A chance of showers and
thunderstorms.
.SATURDAY NIGHT...South winds around 10 knots. Seas around
2 feet. Wave Detail: South 2 feet at 5 seconds. A slight chance
of showers and thunderstorms after midnight.
.SUNDAY...South winds around 10 knots. Seas around 2 feet. Wave
Detail: South 2 feet at 6 seconds. A chance of showers and
thunderstorms.
.SUNDAY NIGHT...South winds around 10 knots. Seas around 2 feet.
A slight chance of showers and thunderstorms after midnight.
.MONDAY...South winds around 10 knots. Seas around 2 feet. A
chance of thunderstorms. Showers likely, mainly in the morning.
.MONDAY NIGHT...South winds 10 to 15 knots. Seas around 2 feet. A
slight chance of showers and thunderstorms after midnight.
.TUESDAY...South winds 10 to 15 knots. Seas around 2 feet. A
chance of thunderstorms. Showers likely, mainly in the morning.
.TUESDAY NIGHT...South winds 10 to 15 knots. Seas 2 to 3 feet. A
slight chance of showers and thunderstorms.

Winds and seas higher in and near thunderstorms.

$$

GMZ452-130915-
Coastal waters from Intracoastal City to Cameron LA out 20 NM-
307 PM CDT Thu Jun 12 2025

...SMALL CRAFT EXERCISE CAUTION IN EFFECT THROUGH FRIDAY
MORNING...

.TONIGHT...South winds 15 to 20 knots. Seas 2 to 4 feet. Wave
Detail: South 4 feet at 5 seconds. A chance of showers and
thunderstorms early this evening, then a slight chance of showers
and thunderstorms late this evening and early morning. A chance
of showers and thunderstorms late.
.FRIDAY...South winds 15 to 20 knots, diminishing to 10 to
15 knots in the afternoon. Seas 2 to 4 feet. Wave Detail: South
4 feet at 5 seconds. Showers and thunderstorms likely, mainly in
the morning.
.FRIDAY NIGHT...South winds 10 to 15 knots. Seas 2 to 3 feet.
Wave Detail: South 3 feet at 6 seconds. A slight chance of
showers and thunderstorms in the evening, then a chance of
showers and thunderstorms after midnight.
.SATURDAY...South winds 10 to 15 knots. Seas 2 to 3 feet. Wave
Detail: South 3 feet at 6 seconds. A chance of showers and
thunderstorms.
.SATURDAY 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.
.SUNDAY...South winds 5 to 10 knots. Seas around 2 feet. Wave
Detail: South 2 feet at 6 seconds. Showers likely with a chance
of thunderstorms.
.SUNDAY 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.
.MONDAY...South winds around 10 knots. Seas around 2 feet.
Showers likely with a chance of thunderstorms.
.MONDAY 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.
.TUESDAY...South winds around 10 knots. Seas around 2 feet.
Showers likely with a chance of thunderstorms.
.TUESDAY NIGHT...South winds 10 to 15 knots. Seas 2 to 3 feet. A
chance of showers and thunderstorms.

Winds and seas higher in and near thunderstorms.

$$

GMZ455-130915-
Coastal waters from Lower Atchafalaya River to Intracoastal City
LA out 20 NM-
307 PM CDT Thu Jun 12 2025

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

Winds and seas higher in and near thunderstorms.

$$

GMZ470-130915-
Coastal waters from Cameron LA to High Island TX from 20 to 60 NM-
307 PM CDT Thu Jun 12 2025

...SMALL CRAFT EXERCISE CAUTION IN EFFECT THROUGH FRIDAY
MORNING...

.TONIGHT...South winds around 15 knots. Seas 3 to 5 feet,
occasionally to 6 feet. Wave Detail: South 4 feet at 6 seconds. A
chance of showers and thunderstorms.
.FRIDAY...South winds 10 to 15 knots. Seas 4 to 6 feet,
occasionally to 8 feet. Wave Detail: South 4 feet at 6 seconds. A
chance of thunderstorms. A chance of showers.
.FRIDAY NIGHT...South winds 10 to 15 knots. Seas 3 to 4 feet.
Wave Detail: South 3 feet at 6 seconds. A slight chance of
showers and thunderstorms after midnight.
.SATURDAY...South winds 10 to 15 knots. Seas 3 to 4 feet. Wave
Detail: South 3 feet at 6 seconds. A chance of showers and
thunderstorms, mainly in the morning.
.SATURDAY NIGHT...South winds around 10 knots. Seas 2 to 3 feet.
Wave Detail: South 3 feet at 7 seconds. A slight chance of
showers and thunderstorms after midnight.
.SUNDAY...South winds 5 to 10 knots. Seas 2 to 3 feet. Wave
Detail: South 3 feet at 7 seconds. A chance of showers and
thunderstorms.
.SUNDAY NIGHT...South winds around 10 knots. Seas 2 to 3 feet. A
slight chance of showers and thunderstorms after midnight.
.MONDAY...South winds around 10 knots. Seas 2 to 3 feet. A chance
of thunderstorms. Showers likely, mainly in the morning.
.MONDAY NIGHT...South winds around 10 knots. Seas 2 to 3 feet. A
chance of showers and thunderstorms after midnight.
.TUESDAY...South winds around 10 knots. Seas 2 to 3 feet. A
chance of thunderstorms. Showers likely, mainly in the morning.
.TUESDAY NIGHT...South winds 10 to 15 knots. Seas 2 to 3 feet. A
slight chance of showers and thunderstorms in the evening, then a
chance of showers and thunderstorms after midnight.

Winds and seas higher in and near thunderstorms.

$$

GMZ472-130915-
Coastal waters from Intracoastal City to Cameron LA from 20 to
60 NM-
307 PM CDT Thu Jun 12 2025

...SMALL CRAFT EXERCISE CAUTION IN EFFECT THROUGH FRIDAY
MORNING...

.TONIGHT...South winds 15 to 20 knots. Seas 3 to 4 feet. Wave
Detail: South 4 feet at 6 seconds. A chance of showers and
thunderstorms.
.FRIDAY...South winds 10 to 15 knots. Seas 3 to 4 feet. A chance
of showers and thunderstorms.
.FRIDAY NIGHT...South winds 10 to 15 knots. Seas around 3 feet.
Wave Detail: South 3 feet at 6 seconds. A slight chance of
showers and thunderstorms in the evening, then a chance of
showers and thunderstorms after midnight.
.SATURDAY...South winds 10 to 15 knots. Seas 3 to 4 feet. Wave
Detail: South 4 feet at 7 seconds. A chance of showers and
thunderstorms.
.SATURDAY NIGHT...South winds around 10 knots. Seas around
3 feet. Wave Detail: South 3 feet at 7 seconds. A chance of
showers and thunderstorms after midnight.
.SUNDAY...South 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.
.SUNDAY NIGHT...South winds 5 to 10 knots. Seas 2 to 3 feet. A
slight chance of thunderstorms. A slight chance of showers in the
evening, then a chance of showers after midnight.
.MONDAY...South winds 5 to 10 knots. Seas 2 to 3 feet. Showers
likely with a chance of thunderstorms.
.MONDAY NIGHT...South winds around 10 knots. Seas 2 to 3 feet. A
slight chance of showers and thunderstorms in the evening, then a
chance of showers and thunderstorms after midnight.
.TUESDAY...South winds around 10 knots. Seas 2 to 3 feet. Showers
likely with a chance of thunderstorms.
.TUESDAY NIGHT...South winds 10 to 15 knots. Seas 2 to 3 feet. A
slight chance of showers and thunderstorms in the evening, then a
chance of showers and thunderstorms after midnight.

Winds and seas higher in and near thunderstorms.

$$

GMZ475-130915-
Coastal waters from Lower Atchafalaya River to Intracoastal City
LA from 20 to 60 NM-
307 PM CDT Thu Jun 12 2025

.TONIGHT...South winds 10 to 15 knots. Seas 3 to 4 feet. Wave
Detail: South 4 feet at 6 seconds. A chance of showers and
thunderstorms.
.FRIDAY...South winds 10 to 15 knots. Seas 3 to 4 feet. Wave
Detail: South 4 feet at 6 seconds. A chance of showers and
thunderstorms.
.FRIDAY NIGHT...South winds 10 to 15 knots. Seas around 3 feet.
Wave Detail: South 3 feet at 6 seconds. A chance of showers and
thunderstorms.
.SATURDAY...South winds 10 to 15 knots, diminishing to 5 to
10 knots in the afternoon. Seas 2 to 3 feet. Wave Detail: South
3 feet at 7 seconds. A chance of showers and thunderstorms.
.SATURDAY NIGHT...South winds 5 to 10 knots. Seas 2 to 3 feet.
Wave Detail: Southeast 3 feet at 7 seconds. A chance of showers
and thunderstorms after midnight.
.SUNDAY...South winds 5 to 10 knots. Seas 2 to 3 feet. Wave
Detail: Southeast 3 feet at 7 seconds. Showers likely with a
chance of thunderstorms.
.SUNDAY NIGHT...South winds 5 to 10 knots. Seas 2 to 3 feet. A
slight chance of thunderstorms. A slight chance of showers in the
evening, then a chance of showers after midnight.
.MONDAY...South winds 5 to 10 knots. Seas 2 to 3 feet. Showers
with a slight chance of thunderstorms in the morning, then
showers likely with a chance of thunderstorms in the afternoon.
.MONDAY NIGHT...South winds 5 to 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.
.TUESDAY...South winds around 10 knots. Seas 2 to 3 feet. A
chance of thunderstorms. Showers.
.TUESDAY NIGHT...South winds 10 to 15 knots. Seas 2 to 3 feet. A
chance of thunderstorms. A chance of showers in the evening, then
showers likely after midnight.

Winds and seas higher in and near thunderstorms.

$$