Coastal Waters Forecast
Issued by NWS Lake Charles, LA

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FZUS54 KLCH 170810
CWFLCH

Coastal Waters Forecast
National Weather Service Lake Charles LA
310 AM CDT Tue Jun 17 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.

GMZ400-172115-
310 AM CDT Tue Jun 17 2025

.SYNOPSIS...

Conditions remain calm across the coastal waters with light to
moderate onshore flow last for the next several days. Combined
seas will remain between 1 and 3 feet. 20-60nm waters off High
Island, Tx to Cameron, LA may range toward 2 and 4 feet with
slight strengthening of southerly flow across the NW Gulf on
Wednesday.

$$

GMZ430-172115-
Sabine Lake-
310 AM CDT Tue Jun 17 2025

.TODAY...South winds 5 to 10 knots. Lake waters light chop. A
slight chance of showers early this morning, then a chance of
showers and thunderstorms late this morning and afternoon.
.TONIGHT...South winds around 10 knots. Lake waters light chop.
.WEDNESDAY...South winds around 10 knots. Lake waters light chop.
A slight chance of showers and thunderstorms.
.WEDNESDAY NIGHT...South winds 5 to 10 knots. Lake waters light
chop.
.THURSDAY...South winds 5 to 10 knots. Lake waters light chop. A
chance of showers and thunderstorms.
.THURSDAY NIGHT...South winds 5 to 10 knots. Lake waters light
chop.
.FRIDAY...South winds around 5 knots, increasing to 5 to 10 knots
in the afternoon. 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.
.SATURDAY...South 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.
.SATURDAY NIGHT...South winds 5 to 10 knots. Lake waters light
chop.

Winds and waves higher in and near thunderstorms.

$$

GMZ432-172115-
Calcasieu Lake-
310 AM CDT Tue Jun 17 2025

.TODAY...South winds 5 to 10 knots. 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
afternoon.
.TONIGHT...South winds around 10 knots. Lake waters light chop. A
slight chance of showers and thunderstorms in the evening.
.WEDNESDAY...South winds around 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.
.WEDNESDAY NIGHT...South winds 5 to 10 knots. Lake waters light
chop.
.THURSDAY...South winds 5 to 10 knots. Lake waters light chop. A
chance of showers and thunderstorms.
.THURSDAY NIGHT...South 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 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.
.SATURDAY...South 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.
.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.

$$

GMZ435-172115-
Vermilion and West Cote Blanche Bays-
310 AM CDT Tue Jun 17 2025

.TODAY...South winds around 10 knots. Bay waters light chop. A
chance of thunderstorms this morning. A chance of showers.
Thunderstorms likely this afternoon.
.TONIGHT...South winds around 10 knots. Bay waters light chop. A
slight chance of showers and thunderstorms in the evening.
.WEDNESDAY...South winds around 10 knots. Bay waters light chop.
A chance of showers and thunderstorms in the morning, then
showers and thunderstorms likely in the afternoon.
.WEDNESDAY NIGHT...South winds 5 to 10 knots. Bay waters light
chop. A slight chance of showers and thunderstorms after
midnight.
.THURSDAY...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.
.THURSDAY NIGHT...South winds 5 to 10 knots. Bay waters light
chop.
.FRIDAY...South winds 5 to 10 knots. Bay 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. Bay waters light chop.
A slight chance of showers and thunderstorms.
.SATURDAY...South winds 5 to 10 knots. Bay waters light chop. A
chance of showers and thunderstorms.
.SATURDAY NIGHT...Southeast winds 5 to 10 knots. Bay waters light
chop. A slight chance of showers and thunderstorms.

Winds and waves higher in and near thunderstorms.

$$

GMZ436-172115-
Atchafalaya and East Cote Blanche Bays-
310 AM CDT Tue Jun 17 2025

.TODAY...South winds 5 to 10 knots. Bay waters light chop. A
chance of thunderstorms.
.TONIGHT...South winds 5 to 10 knots. Bay waters light chop. A
chance of showers and thunderstorms in the evening.
.WEDNESDAY...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.
.WEDNESDAY 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.
.THURSDAY...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.
.THURSDAY NIGHT...South winds 5 to 10 knots. Bay waters light
chop. A slight chance of showers and thunderstorms.
.FRIDAY...South winds 5 to 10 knots. Bay 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. Bay waters light chop.
A slight chance of showers and thunderstorms.
.SATURDAY...Southeast winds 5 to 10 knots. Bay waters light chop.
A chance of showers and thunderstorms.
.SATURDAY NIGHT...Southeast 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.

Winds and waves higher in and near thunderstorms.

$$

GMZ450-172115-
Coastal waters from Cameron LA to High Island TX out 20 NM-
310 AM CDT Tue Jun 17 2025

.TODAY...South winds 10 to 15 knots. Seas 2 to 3 feet. Wave
Detail: South 2 feet at 5 seconds. A chance of showers and
thunderstorms.
.TONIGHT...South winds 10 to 15 knots, increasing to 15 to
20 knots after midnight. Seas 2 to 3 feet. Wave Detail: South
3 feet at 4 seconds.
.WEDNESDAY...South winds 15 to 20 knots, diminishing to 10 to
15 knots in the afternoon. Seas 2 to 3 feet. Wave Detail: South
3 feet at 5 seconds. A slight chance of showers and
thunderstorms.
.WEDNESDAY NIGHT...South winds 10 to 15 knots. Seas 2 to 3 feet.
A slight chance of showers after midnight.
.THURSDAY...South winds around 10 knots. Seas 2 to 3 feet. A
chance of showers and thunderstorms.
.THURSDAY NIGHT...South winds around 10 knots. Seas around
2 feet.
.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.
.SATURDAY...Southeast winds 10 to 15 knots. Seas around 2 feet. A
chance of showers and thunderstorms.
.SATURDAY NIGHT...Southeast 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.

$$

GMZ452-172115-
Coastal waters from Intracoastal City to Cameron LA out 20 NM-
310 AM CDT Tue Jun 17 2025

.TODAY...South winds 10 to 15 knots. Seas 2 to 3 feet. Wave
Detail: South 2 feet at 4 seconds. A chance of showers and
thunderstorms.
.TONIGHT...South winds 10 to 15 knots. Seas 2 to 3 feet. Wave
Detail: South 3 feet at 4 seconds.
.WEDNESDAY...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.
.WEDNESDAY NIGHT...South winds 10 to 15 knots. Seas 2 to 3 feet.
A slight chance of showers and thunderstorms after midnight.
.THURSDAY...South winds around 10 knots. Seas 2 to 3 feet. A
chance of showers and thunderstorms.
.THURSDAY NIGHT...South winds around 10 knots. Seas 2 to 3 feet.
.FRIDAY...South winds 5 to 10 knots. Seas around 2 feet. A chance
of showers and thunderstorms.
.FRIDAY NIGHT...South winds around 10 knots. Seas around 2 feet.
A slight chance of showers and thunderstorms.
.SATURDAY...Southeast winds 10 to 15 knots. Seas around 2 feet. A
chance of showers and thunderstorms.
.SATURDAY NIGHT...Southeast winds 10 to 15 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.

Winds and seas higher in and near thunderstorms.

$$

GMZ455-172115-
Coastal waters from Lower Atchafalaya River to Intracoastal City
LA out 20 NM-
310 AM CDT Tue Jun 17 2025

.TODAY...South winds around 10 knots. Seas around 2 feet. Wave
Detail: South 1 foot at 2 seconds. A chance of showers and
thunderstorms.
.TONIGHT...South winds 10 to 15 knots. Seas around 2 feet. Wave
Detail: South 2 feet at 3 seconds. A slight chance of showers and
thunderstorms.
.WEDNESDAY...South winds 10 to 15 knots. Seas around 2 feet. Wave
Detail: South 1 foot at 3 seconds. A chance of showers and
thunderstorms.
.WEDNESDAY 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.
.THURSDAY...South winds 5 to 10 knots. Seas around 2 feet. A
chance of showers and thunderstorms.
.THURSDAY NIGHT...South winds 5 to 10 knots. Seas around 2 feet.
A slight chance of showers and thunderstorms.
.FRIDAY...South winds 5 to 10 knots. Seas around 2 feet. A chance
of showers and thunderstorms.
.FRIDAY 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.
.SATURDAY...Southeast winds 5 to 10 knots. Seas around 2 feet. A
chance of showers and thunderstorms.
.SATURDAY NIGHT...Southeast winds around 10 knots. Seas around
2 feet. A chance of showers and thunderstorms.

Winds and seas higher in and near thunderstorms.

$$

GMZ470-172115-
Coastal waters from Cameron LA to High Island TX from 20 to 60 NM-
310 AM CDT Tue Jun 17 2025

.TODAY...South winds 10 to 15 knots. Seas around 3 feet. Wave
Detail: South 3 feet at 6 seconds. A chance of showers and
thunderstorms early this morning, then a slight chance of showers
and thunderstorms late this morning and afternoon.
.TONIGHT...South winds 10 to 15 knots. Seas 3 to 4 feet. Wave
Detail: South 3 feet at 6 seconds.
.WEDNESDAY...South winds 10 to 15 knots. Seas 3 to 4 feet. Wave
Detail: South 3 feet at 5 seconds. A slight chance of showers and
thunderstorms.
.WEDNESDAY NIGHT...South winds 10 to 15 knots. Seas around
3 feet. A slight chance of showers and thunderstorms after
midnight.
.THURSDAY...Southeast winds around 10 knots. Seas around 3 feet.
A chance of showers and thunderstorms.
.THURSDAY NIGHT...South winds around 10 knots. Seas 3 to 4 feet.
A slight chance of showers and thunderstorms after midnight.
.FRIDAY...Southeast winds around 10 knots. Seas 2 to 3 feet. A
chance of showers with a slight chance of thunderstorms.
.FRIDAY NIGHT...Southeast winds around 10 knots. Seas 2 to
3 feet. A slight chance of showers and thunderstorms after
midnight.
.SATURDAY...Southeast winds 10 to 15 knots. Seas around 3 feet. A
chance of showers. A chance of thunderstorms, mainly in the
morning.
.SATURDAY NIGHT...Southeast winds around 15 knots. Seas around
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.

$$

GMZ472-172115-
Coastal waters from Intracoastal City to Cameron LA from 20 to
60 NM-
310 AM CDT Tue Jun 17 2025

.TODAY...South winds 10 to 15 knots. Seas around 3 feet. Wave
Detail: South 3 feet at 6 seconds. A chance of showers and
thunderstorms.
.TONIGHT...South winds 10 to 15 knots. Seas 2 to 3 feet.
.WEDNESDAY...South winds 10 to 15 knots. Seas around 3 feet. A
chance of showers and thunderstorms.
.WEDNESDAY NIGHT...South winds 10 to 15 knots. Seas around
3 feet. A slight chance of thunderstorms. A slight chance of
showers in the evening, then a chance of showers after midnight.
.THURSDAY...South winds around 10 knots. Seas around 3 feet. A
chance of showers and thunderstorms.
.THURSDAY NIGHT...South winds around 10 knots. Seas 3 to 4 feet.
A slight chance of showers and thunderstorms after midnight.
.FRIDAY...Southeast winds around 10 knots. Seas 2 to 3 feet. A
chance of showers with a slight chance of thunderstorms.
.FRIDAY NIGHT...Southeast winds around 10 knots. Seas 2 to
3 feet. A chance of showers with a slight chance of thunderstorms
after midnight.
.SATURDAY...Southeast winds 10 to 15 knots. Seas 2 to 3 feet. A
chance of showers. A chance of thunderstorms, mainly in the
morning.
.SATURDAY NIGHT...Southeast winds 10 to 15 knots. Seas around
3 feet. A slight chance of thunderstorms. A slight chance of
showers in the evening, then a chance of showers after midnight.

Winds and seas higher in and near thunderstorms.

$$

GMZ475-172115-
Coastal waters from Lower Atchafalaya River to Intracoastal City
LA from 20 to 60 NM-
310 AM CDT Tue Jun 17 2025

.TODAY...South winds around 10 knots. Seas 2 to 3 feet. Wave
Detail: Southeast 2 feet at 6 seconds. A chance of showers and
thunderstorms.
.TONIGHT...South winds 10 to 15 knots. Seas 2 to 3 feet. Wave
Detail: Southeast 3 feet at 6 seconds. A slight chance of showers
and thunderstorms.
.WEDNESDAY...South winds 10 to 15 knots. Seas 2 to 3 feet. Wave
Detail: Southeast 3 feet at 5 seconds. A chance of showers and
thunderstorms.
.WEDNESDAY NIGHT...South winds 10 to 15 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.
.THURSDAY...Southeast winds around 10 knots. Seas around 3 feet.
A chance of showers and thunderstorms.
.THURSDAY NIGHT...Southeast winds around 10 knots. Seas around
3 feet. A slight chance of showers and thunderstorms.
.FRIDAY...Southeast winds 5 to 10 knots. Seas 2 to 3 feet. A
chance of showers. A chance of thunderstorms, mainly in the
morning.
.FRIDAY NIGHT...Southeast winds around 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.
.SATURDAY...Southeast winds 10 to 15 knots. Seas 2 to 3 feet. A
chance of showers and thunderstorms.
.SATURDAY NIGHT...Southeast winds 10 to 15 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.

Winds and seas higher in and near thunderstorms.

$$