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FZUS54 KLCH 301758
CWFLCH

Coastal Waters Forecast
National Weather Service Lake Charles LA
1258 PM CDT Mon Jun 30 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.

GMZ400-010600-
1258 PM CDT Mon Jun 30 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 surface high pressure will remain near the area, with
prevailing light onshore flow and low seas. Rain chances over the
coastal waters will decrease as an upper level ridge suppresses
moves overhead. Overall, benign marine conditions are expected to
persist through the midweek.

$$

GMZ430-010600-
Sabine Lake-
1258 PM CDT Mon Jun 30 2025

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

Winds and waves higher in and near thunderstorms.

$$

GMZ432-010600-
Calcasieu Lake-
1258 PM CDT Mon Jun 30 2025

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

Winds and waves higher in and near thunderstorms.

$$

GMZ435-010600-
Vermilion and West Cote Blanche Bays-
1258 PM CDT Mon Jun 30 2025

.TONIGHT...Southwest winds 5 to 10 knots. Bay waters light chop.
A slight chance of showers and thunderstorms early this evening.
Hazy early this evening.
.TUESDAY...West winds 5 to 10 knots. Bay waters light chop. A
slight 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. A chance of thunderstorms, mainly in
the evening.
.WEDNESDAY...West winds 5 to 10 knots. Bay waters light chop. A
chance of showers and thunderstorms.
.WEDNESDAY 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.
.THURSDAY...West winds around 5 knots. Bay waters smooth. A
chance of showers and thunderstorms.
.THURSDAY NIGHT...West winds around 5 knots. Bay waters smooth. A
slight 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 after midnight.
.SATURDAY...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.
.SATURDAY NIGHT...Southwest winds around 5 knots, becoming
northwest around 5 knots after midnight. Bay waters smooth. A
slight chance of showers and thunderstorms.

Winds and waves higher in and near thunderstorms.

$$

GMZ436-010600-
Atchafalaya and East Cote Blanche Bays-
1258 PM CDT Mon Jun 30 2025

.TONIGHT...Southwest winds 5 to 10 knots. Bay waters light chop.
A slight chance of showers and thunderstorms early this evening.
Hazy early this evening.
.TUESDAY...West winds 5 to 10 knots. Bay waters light chop. A
slight chance of showers and thunderstorms.
.TUESDAY NIGHT...West winds 5 to 10 knots. Bay waters light chop.
A chance of thunderstorms. A chance of showers.
.WEDNESDAY...West winds 5 to 10 knots. Bay waters light chop. A
chance of thunderstorms. A chance of showers.
.WEDNESDAY 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.
.THURSDAY...West winds around 5 knots. Bay waters smooth. A
chance of showers and thunderstorms.
.THURSDAY NIGHT...West winds around 5 knots. Bay waters smooth. A
slight 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 around 5 knots. Bay waters smooth. A
slight chance of showers and thunderstorms after midnight.
.SATURDAY...Northwest winds around 5 knots, becoming west in the
afternoon. Bay waters smooth. A chance of showers and
thunderstorms.
.SATURDAY NIGHT...Southwest 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.

Winds and waves higher in and near thunderstorms.

$$

GMZ450-010600-
Coastal waters from Cameron LA to High Island TX out 20 NM-
1258 PM CDT Mon Jun 30 2025

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

Winds and seas higher in and near thunderstorms.

$$

GMZ452-010600-
Coastal waters from Intracoastal City to Cameron LA out 20 NM-
1258 PM CDT Mon Jun 30 2025

.TONIGHT...Southwest winds 5 to 10 knots. Seas around 2 feet.
Wave Detail: South 2 feet at 6 seconds. Hazy early this evening.
.TUESDAY...West winds 5 to 10 knots. Seas around 2 feet. Wave
Detail: South 2 feet at 6 seconds.
.TUESDAY NIGHT...Southwest 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.
.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. Wave Detail: Southwest 2 feet at 5 seconds. A slight
chance of showers and thunderstorms.
.THURSDAY...West winds 5 to 10 knots. Seas around 2 feet. Wave
Detail: Southwest 1 foot at 5 seconds. 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 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.
.SATURDAY...Northwest winds 5 to 10 knots, becoming west in the
afternoon. Seas around 2 feet in the morning, then 1 foot or
less. A chance of showers and thunderstorms, mainly in the
morning.
.SATURDAY NIGHT...West 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.

$$

GMZ455-010600-
Coastal waters from Lower Atchafalaya River to Intracoastal City
LA out 20 NM-
1258 PM CDT Mon Jun 30 2025

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

Winds and seas higher in and near thunderstorms.

$$

GMZ470-010600-
Coastal waters from Cameron LA to High Island TX from 20 to 60 NM-
1258 PM CDT Mon Jun 30 2025

.TONIGHT...South winds around 10 knots, diminishing to around
5 knots late. Seas 2 to 3 feet. Wave Detail: South 3 feet at
6 seconds. Hazy early this evening.
.TUESDAY...Southwest winds around 5 knots. Seas 2 to 3 feet. Wave
Detail: South 2 feet at 6 seconds.
.TUESDAY NIGHT...Southwest winds 5 to 10 knots. Seas 2 to 3 feet.
Wave Detail: South 2 feet at 6 seconds.
.WEDNESDAY...Southwest winds 5 to 10 knots. Seas 2 to 3 feet.
Wave Detail: South 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. Wave Detail: South 2 feet at 6 seconds.
.THURSDAY...Southwest winds 5 to 10 knots. Seas around 2 feet.
Wave Detail: South 2 feet at 6 seconds. A slight chance of
showers and thunderstorms in the morning.
.THURSDAY NIGHT...Southwest winds 5 to 10 knots. Seas around
2 feet.
.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.
.SATURDAY...Southwest winds 5 to 10 knots. Seas around 2 feet in
the morning, then 1 foot or less. A slight chance of showers and
thunderstorms in the morning.
.SATURDAY 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.

$$

GMZ472-010600-
Coastal waters from Intracoastal City to Cameron LA from 20 to
60 NM-
1258 PM CDT Mon Jun 30 2025

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

Winds and seas higher in and near thunderstorms.

$$

GMZ475-010600-
Coastal waters from Lower Atchafalaya River to Intracoastal City
LA from 20 to 60 NM-
1258 PM CDT Mon Jun 30 2025

.TONIGHT...South winds around 5 knots. Seas around 2 feet. Wave
Detail: South 2 feet at 6 seconds. Hazy early this evening.
.TUESDAY...West winds around 5 knots. Seas around 2 feet. Wave
Detail: Southwest 2 feet at 6 seconds. A slight chance of showers
and thunderstorms in the afternoon.
.TUESDAY NIGHT...Southwest winds 5 to 10 knots. Seas 2 to 3 feet.
Wave Detail: South 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 5 seconds and southeast 2 feet at
6 seconds. A chance of showers and thunderstorms, mainly in the
morning.
.WEDNESDAY NIGHT...West winds 5 to 10 knots. Seas around 2 feet.
Wave Detail: West 2 feet at 4 seconds and southeast 2 feet at
6 seconds. 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. Wave
Detail: West 2 feet at 4 seconds and southeast 1 foot at
6 seconds. A chance of showers and thunderstorms, mainly in the
morning.
.THURSDAY NIGHT...West winds around 5 knots, increasing to around
10 knots after midnight. Seas around 2 feet. A slight chance of
showers and thunderstorms after midnight.
.FRIDAY...Northwest winds around 5 knots. Seas around 2 feet. A
chance of showers and thunderstorms, mainly in the morning.
.FRIDAY NIGHT...West winds around 5 knots. Seas around 2 feet in
the evening, then 1 foot or less. A chance of showers with a
slight chance of thunderstorms after midnight.
.SATURDAY...Northwest winds around 5 knots. Seas 1 foot or less.
A chance of showers. A chance of thunderstorms, mainly in the
morning.
.SATURDAY NIGHT...West winds around 5 knots, becoming north after
midnight. 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.

$$