Coastal Waters Forecast
Issued by NWS Lake Charles, LA

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FZUS54 KLCH 021805
CWFLCH

Coastal Waters Forecast
National Weather Service Lake Charles LA
105 PM CDT Wed Jul 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.

GMZ400-030700-
105 PM CDT Wed Jul 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...

Light to moderate onshore flow will continue, along with low
seas between 1 and 3 feet. The NHC has marked an invest area in
the eastern Gulf with a 40% chance of development over the next 7
days. Regardless of development occurs into the western Atlantic
impacts are not expected near SETX / SWLA. We will continue to
monitor the disturbance and update the forecast as needed.

$$

GMZ430-030700-
Sabine Lake-
105 PM CDT Wed Jul 2 2025

.TONIGHT...Southwest winds 5 to 10 knots, becoming west late.
Lake waters light chop.
.THURSDAY...West winds around 5 knots, becoming south in the
afternoon. Lake waters smooth.
.THURSDAY NIGHT...Southwest winds around 5 knots. Lake waters
smooth.
.FRIDAY...Light and variable winds, becoming south around 5 knots
in the afternoon. Lake waters smooth. A slight chance of showers
and thunderstorms in the afternoon.
.FRIDAY NIGHT...Southwest winds around 5 knots. Lake waters
smooth.
.SATURDAY...Light and variable winds, becoming south around
5 knots in the afternoon. Lake waters smooth. A slight chance of
showers and thunderstorms.
.SATURDAY NIGHT...Southwest winds around 5 knots. Lake waters
smooth.
.SUNDAY...North winds around 5 knots, becoming southeast in the
afternoon. Lake waters smooth. A chance of showers and
thunderstorms.
.SUNDAY NIGHT...South winds around 5 knots. Lake waters smooth. A
slight chance of showers and thunderstorms.
.MONDAY...Northeast winds around 5 knots, becoming south in the
afternoon. Lake waters smooth. A chance of showers and
thunderstorms.
.MONDAY NIGHT...South winds around 5 knots. Lake waters smooth. A
slight chance of showers and thunderstorms after midnight.

Winds and waves higher in and near thunderstorms.

$$

GMZ432-030700-
Calcasieu Lake-
105 PM CDT Wed Jul 2 2025

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

Winds and waves higher in and near thunderstorms.

$$

GMZ435-030700-
Vermilion and West Cote Blanche Bays-
105 PM CDT Wed Jul 2 2025

.TONIGHT...West winds 5 to 10 knots. Bay waters light chop. A
slight chance of showers and thunderstorms.
.THURSDAY...West 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.
.THURSDAY NIGHT...West winds around 5 knots. Bay waters smooth. A
slight chance of showers and thunderstorms.
.FRIDAY...Northwest 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...West winds around 5 knots. Bay waters smooth. A
slight chance of showers and thunderstorms.
.SATURDAY...North winds around 5 knots, becoming west around
5 knots in the afternoon. Bay waters smooth. A chance of showers
and thunderstorms.
.SATURDAY NIGHT...West winds around 5 knots, becoming north after
midnight. Bay waters smooth. A slight chance of showers and
thunderstorms.
.SUNDAY...Northeast winds around 5 knots, becoming south in the
afternoon. Bay waters smooth. A chance of showers and
thunderstorms in the morning, then showers and thunderstorms
likely in the afternoon.
.SUNDAY NIGHT...Southeast winds around 5 knots. Bay waters
smooth. A chance of showers with a slight chance of
thunderstorms.
.MONDAY...Southeast winds around 5 knots. Bay waters smooth.
Showers likely with a chance of thunderstorms.
.MONDAY NIGHT...South winds 5 to 10 knots. Bay 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.

$$

GMZ436-030700-
Atchafalaya and East Cote Blanche Bays-
105 PM CDT Wed Jul 2 2025

.TONIGHT...West winds 5 to 10 knots. Bay waters light chop. A
slight chance of showers and thunderstorms.
.THURSDAY...West 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.
.THURSDAY NIGHT...West 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.
.FRIDAY...Northwest winds around 5 knots. Bay waters smooth. A
chance of showers and thunderstorms.
.FRIDAY NIGHT...Northwest 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.
.SATURDAY...North winds around 5 knots, becoming west in the
afternoon. Bay waters smooth. A chance of showers and
thunderstorms.
.SATURDAY NIGHT...West winds around 5 knots, becoming northeast
around 5 knots after midnight. Bay waters smooth. A slight chance
of thunderstorms. A slight chance of showers in the evening, then
a chance of showers after midnight.
.SUNDAY...Northeast winds around 5 knots, becoming south in the
afternoon. Bay waters smooth. A chance of thunderstorms. A chance
of showers in the morning, then showers likely in the afternoon.
.SUNDAY NIGHT...Southeast winds around 5 knots. Bay waters
smooth. A chance of showers with a slight chance of
thunderstorms.
.MONDAY...Southeast winds around 5 knots. Bay waters smooth.
Showers likely with a chance of thunderstorms.
.MONDAY 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.

Winds and waves higher in and near thunderstorms.

$$

GMZ450-030700-
Coastal waters from Cameron LA to High Island TX out 20 NM-
105 PM CDT Wed Jul 2 2025

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

Winds and seas higher in and near thunderstorms.

$$

GMZ452-030700-
Coastal waters from Intracoastal City to Cameron LA out 20 NM-
105 PM CDT Wed Jul 2 2025

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

Winds and seas higher in and near thunderstorms.

$$

GMZ455-030700-
Coastal waters from Lower Atchafalaya River to Intracoastal City
LA out 20 NM-
105 PM CDT Wed Jul 2 2025

.TONIGHT...West winds around 10 knots. Seas around 2 feet. Wave
Detail: West 1 foot at 3 seconds. A slight chance of showers and
thunderstorms early this evening. A slight chance of showers and
thunderstorms after midnight.
.THURSDAY...West winds 5 to 10 knots. Seas 1 foot or less. Wave
Detail: West 1 foot at 3 seconds. A slight chance of showers and
thunderstorms.
.THURSDAY NIGHT...West winds 5 to 10 knots. Seas 1 foot or less.
Wave Detail: Southwest 1 foot at 3 seconds. A slight chance of
showers and thunderstorms in the evening, then a chance of
showers and thunderstorms after midnight.
.FRIDAY...Northwest winds 5 to 10 knots. Seas 1 foot or less.
Wave Detail: Northwest 1 foot at 3 seconds. A chance of showers
and thunderstorms.
.FRIDAY NIGHT...West winds around 5 knots. Seas 1 foot or less.
Wave Detail: West 1 foot at 2 seconds. A slight chance of showers
and thunderstorms in the evening, then a chance of showers and
thunderstorms after midnight.
.SATURDAY...North winds 5 to 10 knots, becoming northwest in the
afternoon. Seas 1 foot or less. Wave Detail: Northwest 1 foot at
3 seconds. A chance of showers and thunderstorms, mainly in the
morning.
.SATURDAY NIGHT...West winds around 5 knots, becoming north after
midnight. Seas 1 foot or less. A slight chance of showers and
thunderstorms in the evening, then a chance of showers and
thunderstorms after midnight.
.SUNDAY...Northeast winds around 5 knots, becoming southeast in
the afternoon. Seas 1 foot or less. A chance of thunderstorms.
Showers likely, mainly in the morning.
.SUNDAY NIGHT...Southeast winds around 5 knots. Seas 1 foot or
less. A slight chance of showers and thunderstorms in the
evening, then a chance of showers and thunderstorms after
midnight.
.MONDAY...Southeast winds around 5 knots. Seas 1 foot or less. A
chance of thunderstorms. Showers likely, mainly in the morning.
.MONDAY NIGHT...South winds around 5 knots. Seas 1 foot or less.
A chance of showers and thunderstorms after midnight.

Winds and seas higher in and near thunderstorms.

$$

GMZ470-030700-
Coastal waters from Cameron LA to High Island TX from 20 to 60 NM-
105 PM CDT Wed Jul 2 2025

.TONIGHT...Southwest winds 5 to 10 knots. Seas around 2 feet.
Wave Detail: South 2 feet at 6 seconds.
.THURSDAY...Southwest winds 5 to 10 knots, diminishing to around
5 knots in the afternoon. Seas around 2 feet. Wave Detail: South
2 feet at 6 seconds.
.THURSDAY NIGHT...Southwest winds 5 to 10 knots. Seas around
2 feet. Wave Detail: South 1 foot at 6 seconds.
.FRIDAY...Southwest winds 5 to 10 knots. Seas around 2 feet. Wave
Detail: South 1 foot at 5 seconds. A slight chance of
thunderstorms in the morning. A slight chance of showers.
.FRIDAY NIGHT...Southwest 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 after midnight.
.SATURDAY...Southwest winds around 5 knots. Seas 1 foot or less.
Wave Detail: South 1 foot at 5 seconds. A slight chance of
showers and thunderstorms in the morning.
.SATURDAY NIGHT...Southwest winds around 5 knots. Seas 1 foot or
less. A slight chance of showers and thunderstorms after
midnight.
.SUNDAY...North winds around 5 knots, becoming east in the
afternoon. Seas 1 foot or less. A chance of showers and
thunderstorms, mainly in the morning.
.SUNDAY NIGHT...South winds 5 to 10 knots. Seas 1 foot or less. A
chance of showers with a slight chance of thunderstorms after
midnight.
.MONDAY...Southeast winds 5 to 10 knots. Seas 1 foot or less.
Showers likely with a chance of thunderstorms in the morning,
then a chance of showers with a slight chance of thunderstorms in
the afternoon.
.MONDAY NIGHT...South winds 5 to 10 knots. Seas 1 foot or less. A
chance of showers with a slight chance of thunderstorms after
midnight.

Winds and seas higher in and near thunderstorms.

$$

GMZ472-030700-
Coastal waters from Intracoastal City to Cameron LA from 20 to
60 NM-
105 PM CDT Wed Jul 2 2025

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

Winds and seas higher in and near thunderstorms.

$$

GMZ475-030700-
Coastal waters from Lower Atchafalaya River to Intracoastal City
LA from 20 to 60 NM-
105 PM CDT Wed Jul 2 2025

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

Winds and seas higher in and near thunderstorms.

$$