Coastal Waters Forecast
Issued by NWS Lake Charles, LA

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FZUS54 KLCH 020511
CWFLCH

Coastal Waters Forecast
National Weather Service Lake Charles LA
1210 AM CDT Tue Sep 2 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.

GMZ400-021800-
1210 AM CDT Tue Sep 2 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...

Waves are between 2 and 4 feet across the region, with higher
waves to the east. Winds will remain below 15 knots through the
week and from the east to northeast.

$$

GMZ430-021800-
Sabine Lake-
1210 AM CDT Tue Sep 2 2025

.TODAY...Northeast winds around 5 knots. Lake waters smooth. A
slight chance of showers and thunderstorms early this morning. A
slight chance of showers and thunderstorms early this afternoon,
then a chance of showers and thunderstorms late.
.TONIGHT...East winds around 5 knots. Lake waters smooth. A
slight chance of showers and thunderstorms early in the evening.
.WEDNESDAY...North winds around 5 knots, becoming west in the
afternoon. Lake waters smooth. A slight chance of showers and
thunderstorms in the afternoon.
.WEDNESDAY NIGHT...South winds around 5 knots. Lake waters
smooth. A slight chance of showers and thunderstorms early in the
evening.
.THURSDAY...Southwest winds around 5 knots. Lake waters smooth.
.THURSDAY NIGHT...Southwest winds around 5 knots. Lake waters
smooth.
.FRIDAY...South winds around 5 knots. Lake waters smooth.
.FRIDAY NIGHT...South winds around 5 knots. Lake waters smooth.
.SATURDAY...Southeast winds around 5 knots. Lake waters smooth. A
slight chance of showers and thunderstorms in the afternoon.
.SATURDAY NIGHT...Southeast winds around 5 knots. Lake waters
smooth. A slight chance of showers. A slight chance of
thunderstorms early in the evening. A slight chance of
thunderstorms after midnight.

Winds and waves higher in and near thunderstorms.

$$

GMZ432-021800-
Calcasieu Lake-
1210 AM CDT Tue Sep 2 2025

.TODAY...Northeast winds around 5 knots. Lake waters smooth. A
slight chance of showers and thunderstorms early this morning. A
slight chance of showers and thunderstorms this afternoon.
.TONIGHT...East winds around 5 knots. Lake waters smooth. A
slight chance of showers and thunderstorms early in the evening.
.WEDNESDAY...North winds around 5 knots, becoming west around
5 knots in the afternoon. Lake waters smooth. A slight chance of
showers and thunderstorms in the afternoon.
.WEDNESDAY NIGHT...Southwest winds around 5 knots. Lake waters
smooth. A slight chance of showers and thunderstorms early in the
evening.
.THURSDAY...Southwest winds around 5 knots. Lake waters smooth.
.THURSDAY NIGHT...Southwest winds around 5 knots. Lake waters
smooth.
.FRIDAY...South winds around 5 knots. Lake waters smooth.
.FRIDAY NIGHT...South winds around 5 knots. Lake waters smooth.
.SATURDAY...South winds around 5 knots. Lake waters smooth. A
slight chance of showers and thunderstorms in the afternoon.
.SATURDAY NIGHT...Southeast winds around 5 knots, becoming east
after midnight. Lake waters smooth. A slight chance of showers
and thunderstorms early in the evening. A slight chance of
showers and thunderstorms after midnight.

Winds and waves higher in and near thunderstorms.

$$

GMZ435-021800-
Vermilion and West Cote Blanche Bays-
1210 AM CDT Tue Sep 2 2025

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

Winds and waves higher in and near thunderstorms.

$$

GMZ436-021800-
Atchafalaya and East Cote Blanche Bays-
1210 AM CDT Tue Sep 2 2025

.TODAY...East winds 5 to 10 knots. Bay waters light chop. A
chance of showers and thunderstorms.
.TONIGHT...East winds 5 to 10 knots, diminishing to around
5 knots after midnight. Bay waters light chop. A chance of
showers and thunderstorms early in the evening.
.WEDNESDAY...Northeast winds around 5 knots, becoming southeast
around 5 knots in the afternoon. Bay waters smooth.
.WEDNESDAY NIGHT...South winds around 5 knots. Bay waters smooth.
.THURSDAY...North winds around 5 knots, becoming southwest around
5 knots in the afternoon. Bay waters smooth.
.THURSDAY NIGHT...South winds around 5 knots. Bay waters smooth.
.FRIDAY...Southwest winds around 5 knots. Bay waters smooth.
.FRIDAY NIGHT...South winds around 5 knots. Bay waters smooth.
.SATURDAY...South winds around 5 knots. Bay waters smooth. A
slight chance of showers and thunderstorms in the afternoon.
.SATURDAY NIGHT...South winds around 5 knots, becoming east after
midnight. Bay waters smooth. A slight chance of showers and
thunderstorms early in the evening. A slight chance of showers
after midnight. A slight chance of thunderstorms late.

Winds and waves higher in and near thunderstorms.

$$

GMZ450-021800-
Coastal waters from Cameron LA to High Island TX out 20 NM-
1210 AM CDT Tue Sep 2 2025

.TODAY...East winds 5 to 10 knots. Seas around 2 feet. Wave
Detail: East 1 foot at 4 seconds. A chance of showers and
thunderstorms, mainly this morning.
.TONIGHT...East winds 5 to 10 knots. Seas 1 foot or less. Wave
Detail: Southeast 1 foot at 4 seconds. A slight chance of showers
and thunderstorms early in the evening. A slight chance of
showers and thunderstorms after midnight.
.WEDNESDAY...North winds 5 to 10 knots, becoming south in the
afternoon. Seas 1 foot or less. Wave Detail: Northeast 1 foot at
4 seconds. A slight chance of showers and thunderstorms until
late afternoon.
.WEDNESDAY NIGHT...South winds around 5 knots. Seas 1 foot or
less. Wave Detail: South 1 foot at 3 seconds.
.THURSDAY...Southwest winds 5 to 10 knots. Seas 1 foot or less.
Wave Detail: Southwest 1 foot at 3 seconds and southeast 1 foot
at 4 seconds.
.THURSDAY 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.
.FRIDAY...South winds 5 to 10 knots. Seas around 2 feet in the
morning, then 1 foot or less.
.FRIDAY NIGHT...South winds 5 to 10 knots. Seas 1 foot or less.
.SATURDAY...Southeast winds 5 to 10 knots. Seas 1 foot or less. A
slight chance of showers and thunderstorms.
.SATURDAY NIGHT...Southeast winds 5 to 10 knots. Seas 1 foot or
less, then around 2 feet after midnight. A slight chance of
showers. A slight chance of thunderstorms early in the evening. A
slight chance of thunderstorms after midnight.

Winds and seas higher in and near thunderstorms.

$$

GMZ452-021800-
Coastal waters from Intracoastal City to Cameron LA out 20 NM-
1210 AM CDT Tue Sep 2 2025

.TODAY...East winds 5 to 10 knots. Seas around 2 feet. Wave
Detail: East 1 foot at 4 seconds. A chance of showers and
thunderstorms.
.TONIGHT...East winds 5 to 10 knots. Seas around 2 feet. Wave
Detail: Southeast 1 foot at 3 seconds. A slight chance of showers
and thunderstorms.
.WEDNESDAY...Northeast winds 5 to 10 knots, becoming southeast in
the afternoon. Seas 1 foot or less. Wave Detail: East 1 foot at
4 seconds. A slight chance of showers and thunderstorms.
.WEDNESDAY NIGHT...South winds around 5 knots. Seas 1 foot or
less. Wave Detail: Southeast 1 foot at 4 seconds. A slight chance
of showers and thunderstorms early in the evening.
.THURSDAY...West winds around 5 knots. Seas 1 foot or less. Wave
Detail: West 1 foot at 3 seconds and southeast 1 foot at
4 seconds.
.THURSDAY NIGHT...South winds 5 to 10 knots. Seas 1 foot or less.
Wave Detail: Southwest 1 foot at 3 seconds.
.FRIDAY...South winds 5 to 10 knots. Seas 1 foot or less.
.FRIDAY NIGHT...South winds 5 to 10 knots. Seas 1 foot or less.
.SATURDAY...Southeast winds 5 to 10 knots. Seas 1 foot or less. A
slight chance of showers and thunderstorms.
.SATURDAY NIGHT...Southeast winds 5 to 10 knots. Seas 1 foot or
less. A slight chance of showers and thunderstorms early in the
evening. A slight chance of showers and thunderstorms after
midnight.

Winds and seas higher in and near thunderstorms.

$$

GMZ455-021800-
Coastal waters from Lower Atchafalaya River to Intracoastal City
LA out 20 NM-
1210 AM CDT Tue Sep 2 2025

.TODAY...East winds 5 to 10 knots. Seas around 2 feet. Wave
Detail: East 1 foot at 3 seconds. A chance of showers and
thunderstorms.
.TONIGHT...East winds 5 to 10 knots. Seas around 2 feet. Wave
Detail: East 1 foot at 3 seconds. A chance of showers and
thunderstorms, mainly in the evening.
.WEDNESDAY...East winds 5 to 10 knots. Seas 1 foot or less. Wave
Detail: East 1 foot at 3 seconds. A slight chance of showers and
thunderstorms until late afternoon.
.WEDNESDAY NIGHT...Southeast winds around 5 knots. Seas 1 foot or
less. A slight chance of showers and thunderstorms late.
.THURSDAY...North winds around 5 knots, becoming west around
5 knots in the afternoon. Seas 1 foot or less.
.THURSDAY NIGHT...South winds around 5 knots. Seas 1 foot or
less.
.FRIDAY...South winds around 5 knots. Seas 1 foot or less.
.FRIDAY NIGHT...South winds around 5 knots. Seas 1 foot or less.
.SATURDAY...Southeast winds around 5 knots. Seas 1 foot or less.
A slight chance of showers and thunderstorms.
.SATURDAY NIGHT...Southeast winds 5 to 10 knots. Seas 1 foot or
less. A slight chance of showers and thunderstorms early in the
evening. A slight chance of showers and thunderstorms after
midnight.

Winds and seas higher in and near thunderstorms.

$$

GMZ470-021800-
Coastal waters from Cameron LA to High Island TX from 20 to 60 NM-
1210 AM CDT Tue Sep 2 2025

.TODAY...Northeast winds 5 to 10 knots. Seas around 2 feet. Wave
Detail: East 2 feet at 4 seconds. Showers likely this morning. A
chance of thunderstorms. A chance of showers this afternoon.
.TONIGHT...East winds 5 to 10 knots. Seas around 2 feet. Wave
Detail: East 2 feet at 4 seconds. A slight chance of
thunderstorms.
.WEDNESDAY...Northeast winds 5 to 10 knots. Seas around 2 feet.
Wave Detail: East 2 feet at 4 seconds. A chance of showers and
thunderstorms in the morning, then a slight chance of showers and
thunderstorms early in the afternoon.
.WEDNESDAY NIGHT...South winds around 5 knots. Seas 1 foot or
less. Wave Detail: East 1 foot at 5 seconds.
.THURSDAY...West winds around 5 knots. Seas 1 foot or less. Wave
Detail: West 1 foot at 2 seconds and southeast 1 foot at
5 seconds.
.THURSDAY NIGHT...South winds 5 to 10 knots. Seas 1 foot or less.
Wave Detail: Southwest 1 foot at 3 seconds and southeast 1 foot
at 6 seconds.
.FRIDAY...South winds 5 to 10 knots. Seas 1 foot or less.
.FRIDAY NIGHT...Southeast winds 5 to 10 knots. Seas 1 foot or
less. A slight chance of showers late.
.SATURDAY...Southeast winds 5 to 10 knots. Seas 1 foot or less. A
chance of showers with a slight chance of thunderstorms.
.SATURDAY NIGHT...Southeast winds 5 to 10 knots. Seas 1 foot or
less, then around 2 feet after midnight. A slight chance of
thunderstorms early in the evening. A slight chance of showers in
the evening. A chance of showers with a slight chance of
thunderstorms after midnight.

Winds and seas higher in and near thunderstorms.

$$

GMZ472-021800-
Coastal waters from Intracoastal City to Cameron LA from 20 to
60 NM-
1210 AM CDT Tue Sep 2 2025

.TODAY...East winds around 10 knots. Seas around 2 feet. Wave
Detail: East 2 feet at 4 seconds. A chance of thunderstorms.
Showers likely, mainly this morning.
.TONIGHT...East winds 5 to 10 knots. Seas around 2 feet. Wave
Detail: East 2 feet at 4 seconds. A slight chance of showers and
thunderstorms early in the evening, then a chance of showers and
thunderstorms in the late evening and overnight.
.WEDNESDAY...Northeast winds 5 to 10 knots. Seas around 2 feet.
Wave Detail: East 2 feet at 5 seconds. A chance of showers and
thunderstorms until late afternoon, then a slight chance of
showers and thunderstorms late.
.WEDNESDAY NIGHT...Southeast winds around 5 knots. Seas 1 foot or
less. Wave Detail: East 1 foot at 5 seconds.
.THURSDAY...North winds around 5 knots. Seas 1 foot or less. Wave
Detail: West 1 foot at 2 seconds and southeast 1 foot at
5 seconds.
.THURSDAY NIGHT...South winds 5 to 10 knots. Seas 1 foot or less.
Wave Detail: West 1 foot at 3 seconds and southeast 1 foot at
5 seconds.
.FRIDAY...South winds 5 to 10 knots. Seas 1 foot or less.
.FRIDAY NIGHT...Southeast winds 5 to 10 knots. Seas 1 foot or
less.
.SATURDAY...Southeast winds 5 to 10 knots. Seas 1 foot or less. A
slight chance of thunderstorms. A slight chance of showers until
late afternoon, then a chance of showers late.
.SATURDAY NIGHT...Southeast winds 5 to 10 knots. Seas 1 foot or
less. A chance of showers with a slight chance of thunderstorms
early in the evening. A slight chance of showers and
thunderstorms after midnight.

Winds and seas higher in and near thunderstorms.

$$

GMZ475-021800-
Coastal waters from Lower Atchafalaya River to Intracoastal City
LA from 20 to 60 NM-
1210 AM CDT Tue Sep 2 2025

.TODAY...East winds around 10 knots. Seas around 2 feet. Wave
Detail: East 2 feet at 4 seconds. Showers with thunderstorms
likely until late afternoon, then a slight chance of showers and
thunderstorms late.
.TONIGHT...East winds 10 to 15 knots. Seas 2 to 3 feet. Wave
Detail: East 2 feet at 4 seconds. A chance of showers and
thunderstorms.
.WEDNESDAY...Northeast winds 5 to 10 knots. Seas around 2 feet.
Wave Detail: East 2 feet at 5 seconds. A chance of showers and
thunderstorms until late afternoon, then a slight chance of
showers and thunderstorms late.
.WEDNESDAY NIGHT...East winds 5 to 10 knots. Seas around 2 feet
in the evening, then 1 foot or less. Wave Detail: East 2 feet at
5 seconds. A slight chance of showers and thunderstorms early in
the evening. A slight chance of showers and thunderstorms after
midnight.
.THURSDAY...Northeast winds around 5 knots. Seas 1 foot or less.
Wave Detail: East 1 foot at 6 seconds. A slight chance of
thunderstorms until late afternoon. A slight chance of showers.
.THURSDAY NIGHT...Southeast winds around 5 knots. Seas 1 foot or
less. Wave Detail: East 1 foot at 5 seconds.
.FRIDAY...Southeast winds around 5 knots. Seas 1 foot or less.
.FRIDAY NIGHT...Southeast winds 5 to 10 knots. Seas 1 foot or
less. A slight chance of showers after midnight.
.SATURDAY...Southeast winds around 5 knots. Seas 1 foot or less.
A slight chance of thunderstorms. A slight chance of showers in
the morning, then a chance of showers in the afternoon.
.SATURDAY NIGHT...Southeast winds 5 to 10 knots. Seas 1 foot or
less. A chance of showers with a slight chance of thunderstorms
early in the evening. A slight chance of showers and
thunderstorms after midnight.

Winds and seas higher in and near thunderstorms.

$$