330
FZUS54 KLCH 291838
CWFLCH

Coastal Waters Forecast
National Weather Service Lake Charles LA
138 PM CDT Sun Jun 29 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.

GMZ400-301015-
138 PM CDT Sun Jun 29 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...

Weak high pressure will be noted over the coastal waters through
mid week. This will provide mainly light onshore winds and
relatively low seas. Lower rain chances are also expected through
mid week as weak high pressure will aloft will also be found over
the coastal waters.

$$

GMZ430-301015-
Sabine Lake-
138 PM CDT Sun Jun 29 2025

.TONIGHT...South winds 5 to 10 knots. Lake waters light chop. A
slight chance of showers and thunderstorms early this evening.
.MONDAY...Southwest winds around 5 knots, becoming south in the
afternoon. Lake waters light chop. A slight chance of showers and
thunderstorms in the afternoon.
.MONDAY NIGHT...Southwest winds 5 to 10 knots. Lake waters light
chop.
.TUESDAY...Southwest winds around 5 knots. Lake waters smooth.
.TUESDAY NIGHT...Southwest winds 5 to 10 knots. Lake waters light
chop.
.WEDNESDAY...West winds around 5 knots. Lake waters smooth. A
slight chance of showers and thunderstorms.
.WEDNESDAY NIGHT...Southwest winds around 5 knots. Lake waters
smooth. A slight chance of showers.
.THURSDAY...West winds around 5 knots, becoming southwest in the
afternoon. Lake waters smooth. A slight chance of showers and
thunderstorms.
.THURSDAY NIGHT...Southwest winds 5 to 10 knots. Lake waters
light chop.
.FRIDAY...West winds around 5 knots, becoming southwest in the
afternoon. Lake waters light chop. A slight chance of showers and
thunderstorms.
.FRIDAY NIGHT...Southwest winds 5 to 10 knots. Lake waters light
chop.

Winds and waves higher in and near thunderstorms.

$$

GMZ432-301015-
Calcasieu Lake-
138 PM CDT Sun Jun 29 2025

.TONIGHT...South winds around 10 knots, becoming 5 to 10 knots
late this evening and overnight. Lake waters light chop. A chance
of showers and thunderstorms early this evening.
.MONDAY...Southwest winds 5 to 10 knots. Lake waters light chop.
A slight chance of showers and thunderstorms in the afternoon.
.MONDAY NIGHT...Southwest winds 5 to 10 knots. Lake waters light
chop.
.TUESDAY...West winds 5 to 10 knots. Lake waters light chop. A
slight chance of showers and thunderstorms in the afternoon.
.TUESDAY NIGHT...Southwest winds 5 to 10 knots. Lake waters light
chop.
.WEDNESDAY...West 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.
.WEDNESDAY NIGHT...Southwest 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.
.THURSDAY...West winds around 5 knots. Lake waters smooth. A
slight chance of showers and thunderstorms.
.THURSDAY NIGHT...Southwest winds 5 to 10 knots. Lake waters
light chop. A slight chance of showers and thunderstorms after
midnight.
.FRIDAY...Northwest winds around 5 knots, becoming southwest in
the afternoon. Lake waters smooth. A slight chance of showers and
thunderstorms.
.FRIDAY NIGHT...Southwest 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.

$$

GMZ435-301015-
Vermilion and West Cote Blanche Bays-
138 PM CDT Sun Jun 29 2025

.TONIGHT...Southwest winds 5 to 10 knots. Bay waters light chop.
A chance of showers and thunderstorms early this evening.
.MONDAY...Southwest winds 5 to 10 knots. Bay waters light chop. A
slight chance of showers and thunderstorms in the afternoon.
.MONDAY NIGHT...Southwest winds 5 to 10 knots. Bay waters light
chop.
.TUESDAY...West 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.
.TUESDAY NIGHT...Southwest winds around 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.
.WEDNESDAY...West 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.
.WEDNESDAY NIGHT...West winds 5 to 10 knots. Bay waters light
chop. A chance of showers and thunderstorms.
.THURSDAY...West winds around 5 knots. Bay waters smooth. A
chance of showers and thunderstorms.
.THURSDAY NIGHT...West 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.
.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 5 to 10 knots. Bay waters light chop.
A slight chance of showers and thunderstorms.

Winds and waves higher in and near thunderstorms.

$$

GMZ436-301015-
Atchafalaya and East Cote Blanche Bays-
138 PM CDT Sun Jun 29 2025

.TONIGHT...South winds 5 to 10 knots. Bay waters light chop. A
chance of showers and thunderstorms early this evening.
.MONDAY...Southwest 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.
.MONDAY NIGHT...Southwest winds 5 to 10 knots. Bay waters light
chop. A slight chance of showers and thunderstorms in the
evening.
.TUESDAY...West 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.
.TUESDAY NIGHT...West 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.
.WEDNESDAY...West 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.
.WEDNESDAY NIGHT...West winds 5 to 10 knots. Bay waters light
chop. A chance of showers and thunderstorms.
.THURSDAY...West winds around 5 knots. Bay waters smooth. A
chance of showers and thunderstorms.
.THURSDAY NIGHT...West 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.
.FRIDAY...Northwest winds around 5 knots. Bay waters smooth. A
chance of showers and thunderstorms.
.FRIDAY NIGHT...West 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.

$$

GMZ450-301015-
Coastal waters from Cameron LA to High Island TX out 20 NM-
138 PM CDT Sun Jun 29 2025

.TONIGHT...South winds 10 to 15 knots. Seas around 2 feet. Wave
Detail: South 2 feet at 4 seconds. A slight chance of showers and
thunderstorms early this evening.
.MONDAY...South winds 5 to 10 knots. Seas around 2 feet.
.MONDAY NIGHT...South winds around 10 knots. Seas around 2 feet.
Wave Detail: South 2 feet at 4 seconds.
.TUESDAY...Southwest winds 5 to 10 knots. Seas around 2 feet.
Wave Detail: Southwest 1 foot at 4 seconds.
.TUESDAY NIGHT...Southwest winds around 10 knots. Seas around
2 feet. Wave Detail: Southwest 2 feet at 3 seconds and south
1 foot at 7 seconds.
.WEDNESDAY...Southwest winds 5 to 10 knots. Seas around 2 feet.
Wave Detail: Southwest 2 feet at 4 seconds. A slight chance of
showers and thunderstorms.
.WEDNESDAY NIGHT...Southwest winds around 10 knots. Seas around
2 feet. A slight chance of showers. A slight chance of
thunderstorms after midnight.
.THURSDAY...West winds 5 to 10 knots, becoming southwest in the
afternoon. Seas around 2 feet in the morning, then 1 foot or
less. A slight chance of showers and thunderstorms.
.THURSDAY NIGHT...Southwest winds around 10 knots. Seas around
2 feet. A slight chance of showers and thunderstorms after
midnight.
.FRIDAY...West winds 5 to 10 knots, becoming southwest in the
afternoon. Seas around 2 feet. A slight chance of showers and
thunderstorms.
.FRIDAY NIGHT...Southwest winds 5 to 10 knots. Seas around
2 feet. A slight chance of showers and thunderstorms after
midnight.

Winds and seas higher in and near thunderstorms.

$$

GMZ452-301015-
Coastal waters from Intracoastal City to Cameron LA out 20 NM-
138 PM CDT Sun Jun 29 2025

.TONIGHT...South winds around 10 knots. Seas around 2 feet. Wave
Detail: South 2 feet at 4 seconds. A chance of showers and
thunderstorms early this evening.
.MONDAY...Southwest winds 5 to 10 knots. Seas around 2 feet. Wave
Detail: Southwest 2 feet at 5 seconds. A slight chance of showers
and thunderstorms in the afternoon.
.MONDAY NIGHT...Southwest winds around 10 knots. Seas around
2 feet. Wave Detail: Southwest 2 feet at 6 seconds.
.TUESDAY...Southwest winds 5 to 10 knots. Seas around 2 feet.
Wave Detail: Southwest 2 feet at 6 seconds. A slight chance of
showers and thunderstorms.
.TUESDAY NIGHT...Southwest winds around 10 knots. Seas around
2 feet. Wave Detail: Southwest 2 feet at 4 seconds and southwest
1 foot at 7 seconds. A slight chance of showers and thunderstorms
after midnight.
.WEDNESDAY...West winds 5 to 10 knots. Seas around 2 feet. Wave
Detail: Southwest 2 feet at 5 seconds. A chance of showers and
thunderstorms.
.WEDNESDAY NIGHT...Southwest 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...West winds 5 to 10 knots. Seas around 2 feet. A
chance of showers and thunderstorms, mainly in the morning.
.THURSDAY NIGHT...Southwest 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.
.FRIDAY...West winds 5 to 10 knots. Seas around 2 feet in the
morning, then 1 foot or less. A chance of showers and
thunderstorms, mainly in the morning.
.FRIDAY NIGHT...West winds 5 to 10 knots. Seas 1 foot or less. A
slight chance of showers and thunderstorms.

Winds and seas higher in and near thunderstorms.

$$

GMZ455-301015-
Coastal waters from Lower Atchafalaya River to Intracoastal City
LA out 20 NM-
138 PM CDT Sun Jun 29 2025

.TONIGHT...South winds 5 to 10 knots. Seas around 2 feet. Wave
Detail: South 1 foot at 2 seconds. A chance of showers and
thunderstorms early this evening.
.MONDAY...Southwest winds 5 to 10 knots. Seas 1 to 2 feet in the
morning, then 1 foot or less. Wave Detail: Southwest 1 foot at
3 seconds. A slight chance of showers and thunderstorms.
.MONDAY NIGHT...Southwest winds 5 to 10 knots. Seas around
2 feet. Wave Detail: Southwest 1 foot at 3 seconds.
.TUESDAY...West winds 5 to 10 knots. Seas around 2 feet. Wave
Detail: Southwest 1 foot at 3 seconds. A slight chance of showers
and thunderstorms in the morning, then a chance of showers and
thunderstorms in the afternoon.
.TUESDAY NIGHT...Southwest winds 5 to 10 knots. Seas around
2 feet. 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.
.WEDNESDAY...West winds 5 to 10 knots. Seas around 2 feet. Wave
Detail: West 1 foot at 3 seconds. A chance of showers and
thunderstorms.
.WEDNESDAY NIGHT...West winds 5 to 10 knots. Seas 1 foot or less.
A chance of showers and thunderstorms.
.THURSDAY...West winds 5 to 10 knots. Seas 1 foot or less. A
chance of showers and thunderstorms.
.THURSDAY NIGHT...West 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.
.FRIDAY...Northwest winds 5 to 10 knots. Seas 1 foot or less. A
chance of showers and thunderstorms.
.FRIDAY NIGHT...West 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.

Winds and seas higher in and near thunderstorms.

$$

GMZ470-301015-
Coastal waters from Cameron LA to High Island TX from 20 to 60 NM-
138 PM CDT Sun Jun 29 2025

.TONIGHT...South winds around 10 knots. Seas around 3 feet. A
slight chance of showers and thunderstorms early this evening.
.MONDAY...South winds 5 to 10 knots. Seas 2 to 3 feet. Wave
Detail: Southwest 2 feet at 6 seconds. A slight chance of showers
and thunderstorms in the afternoon.
.MONDAY NIGHT...South winds 5 to 10 knots. Seas 2 to 3 feet. Wave
Detail: Southwest 2 feet at 6 seconds.
.TUESDAY...Southwest winds 5 to 10 knots. Seas 2 to 3 feet. Wave
Detail: Southwest 2 feet at 7 seconds.
.TUESDAY NIGHT...Southwest winds 5 to 10 knots. Seas 2 to 3 feet.
Wave Detail: Southwest 2 feet at 7 seconds.
.WEDNESDAY...Southwest winds 5 to 10 knots. Seas 2 to 3 feet.
Wave Detail: Southwest 2 feet at 6 seconds. A slight chance of
showers and thunderstorms in the morning.
.WEDNESDAY NIGHT...Southwest winds 5 to 10 knots. Seas around
2 feet. A slight chance of showers and thunderstorms after
midnight.
.THURSDAY...Southwest winds 5 to 10 knots. Seas around 2 feet. A
slight chance of showers and thunderstorms in the morning.
.THURSDAY NIGHT...Southwest winds 5 to 10 knots. Seas around
2 feet. A slight chance of showers and thunderstorms after
midnight.
.FRIDAY...Southwest winds 5 to 10 knots. Seas around 2 feet. A
slight chance of showers and thunderstorms in the morning.
.FRIDAY NIGHT...Southwest winds 5 to 10 knots. Seas around
2 feet. A slight chance of showers and thunderstorms after
midnight.

Winds and seas higher in and near thunderstorms.

$$

GMZ472-301015-
Coastal waters from Intracoastal City to Cameron LA from 20 to
60 NM-
138 PM CDT Sun Jun 29 2025

.TONIGHT...South winds around 10 knots. Seas around 3 feet. A
chance of showers and thunderstorms early this evening.
.MONDAY...South winds 5 to 10 knots. Seas 2 to 3 feet. Wave
Detail: Southwest 2 feet at 6 seconds. A slight chance of showers
and thunderstorms.
.MONDAY NIGHT...South winds 5 to 10 knots. Seas 2 to 3 feet. Wave
Detail: Southwest 2 feet at 6 seconds.
.TUESDAY...Southwest winds 5 to 10 knots. Seas 2 to 3 feet. Wave
Detail: Southwest 2 feet at 7 seconds. A slight chance of showers
and thunderstorms in the morning.
.TUESDAY NIGHT...Southwest winds 5 to 10 knots. Seas 2 to 3 feet.
Wave Detail: Southwest 2 feet at 6 seconds. A slight chance of
showers and thunderstorms after midnight.
.WEDNESDAY...West winds 5 to 10 knots. Seas 2 to 3 feet. Wave
Detail: Southwest 2 feet at 6 seconds. A chance of showers and
thunderstorms in the morning, then a slight chance of showers in
the afternoon.
.WEDNESDAY NIGHT...Southwest winds 5 to 10 knots. Seas around
2 feet. A slight chance of thunderstorms. A slight chance of
showers in the evening, then a chance of showers after midnight.
.THURSDAY...West winds 5 to 10 knots. Seas around 2 feet. A
chance of showers and thunderstorms, mainly in the morning.
.THURSDAY NIGHT...Southwest winds 5 to 10 knots. Seas around
2 feet. A slight chance of showers and thunderstorms after
midnight.
.FRIDAY...West winds 5 to 10 knots. Seas around 2 feet in the
morning, then 1 foot or less. A chance of showers and
thunderstorms, mainly in the morning.
.FRIDAY NIGHT...Southwest winds 5 to 10 knots. Seas 1 foot or
less. A slight chance of showers and thunderstorms after
midnight.

Winds and seas higher in and near thunderstorms.

$$

GMZ475-301015-
Coastal waters from Lower Atchafalaya River to Intracoastal City
LA from 20 to 60 NM-
138 PM CDT Sun Jun 29 2025

.TONIGHT...South winds around 10 knots. Seas 2 to 3 feet. Wave
Detail: South 2 feet at 6 seconds. A chance of showers and
thunderstorms early this evening.
.MONDAY...South winds 5 to 10 knots. Seas 2 to 3 feet. Wave
Detail: Southwest 1 foot at 5 seconds. A slight chance of showers
and thunderstorms.
.MONDAY NIGHT...South winds 5 to 10 knots. Seas 2 to 3 feet. Wave
Detail: Southwest 2 feet at 6 seconds.
.TUESDAY...West winds 5 to 10 knots. Seas 2 to 3 feet. Wave
Detail: Southwest 2 feet at 7 seconds. A slight chance of showers
and thunderstorms.
.TUESDAY NIGHT...Southwest winds 5 to 10 knots. Seas 2 to 3 feet.
Wave Detail: Southwest 2 feet at 7 seconds. A chance of showers
with a slight chance of thunderstorms after midnight.
.WEDNESDAY...West winds 5 to 10 knots. Seas 2 to 3 feet. Wave
Detail: Southwest 2 feet at 6 seconds. A chance of showers. A
chance of thunderstorms, mainly in the morning.
.WEDNESDAY NIGHT...Southwest 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.
.THURSDAY...Northwest winds 5 to 10 knots. Seas around 2 feet. A
chance of showers and thunderstorms, mainly in the morning.
.THURSDAY NIGHT...West 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.
.FRIDAY...Northwest winds 5 to 10 knots. Seas around 2 feet in
the morning, then 1 foot or less. A chance of showers and
thunderstorms, mainly in the morning.
.FRIDAY NIGHT...West winds around 5 knots. Seas 1 foot or less. 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.

$$