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FZUS54 KLCH 080539
CWFLCH

Coastal Waters Forecast
National Weather Service Lake Charles LA
1239 AM CDT Tue Jul 8 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.

GMZ400-081800-
1239 AM CDT Tue Jul 8 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 at the surface over the northeast Gulf will
ridge across into the coastal waters. This will allow for mainly
light southerly winds to continue along with low seas. A weak
disturbance aloft will keep a daily chance of scattered showers
and thunderstorms in the forecast.

$$

GMZ430-081800-
Sabine Lake-
1239 AM CDT Tue Jul 8 2025

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

$$

GMZ432-081800-
Calcasieu Lake-
1239 AM CDT Tue Jul 8 2025

.TODAY...Southwest winds around 5 knots, becoming south this
afternoon. Lake waters light chop. A chance of showers and
thunderstorms early this morning, then showers and thunderstorms
late this morning and early afternoon. A chance of showers and
thunderstorms late.
.TONIGHT...Southwest winds 5 to 10 knots. Lake waters light chop.
A chance of showers and thunderstorms, mainly in the evening.
.WEDNESDAY...Southwest winds 5 to 10 knots. Lake waters light
chop. Showers likely. A chance of thunderstorms in the morning,
then thunderstorms likely in the afternoon.
.WEDNESDAY NIGHT...Southwest winds 5 to 10 knots. Lake waters
light chop. A slight chance of showers in the evening, then a
chance of showers and thunderstorms after midnight.
.THURSDAY...Southwest winds 5 to 10 knots. Lake waters light
chop. A chance of thunderstorms. Showers likely, mainly in the
morning.
.THURSDAY NIGHT...Southwest winds 5 to 10 knots. Lake waters
light chop. A slight chance of showers and thunderstorms after
midnight.
.FRIDAY...South winds 5 to 10 knots. Lake waters light chop. A
chance of showers and thunderstorms.
.FRIDAY NIGHT...South winds 5 to 10 knots. Lake waters light
chop. A slight chance of showers and thunderstorms after
midnight.
.SATURDAY...South winds 5 to 10 knots. Lake waters light chop.
Showers likely. A chance of thunderstorms in the morning, then
thunderstorms likely 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.

$$

GMZ435-081800-
Vermilion and West Cote Blanche Bays-
1239 AM CDT Tue Jul 8 2025

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

Winds and waves higher in and near thunderstorms.

$$

GMZ436-081800-
Atchafalaya and East Cote Blanche Bays-
1239 AM CDT Tue Jul 8 2025

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

Winds and waves higher in and near thunderstorms.

$$

GMZ450-081800-
Coastal waters from Cameron LA to High Island TX out 20 NM-
1239 AM CDT Tue Jul 8 2025

.TODAY...Southwest winds 5 to 10 knots. Seas around 2 feet. Wave
Detail: South 1 foot at 5 seconds. Showers and thunderstorms
likely, mainly this morning.
.TONIGHT...Southwest winds around 10 knots. Seas around 2 feet.
Wave Detail: South 2 feet at 5 seconds. A chance of showers and
thunderstorms, mainly in the evening.
.WEDNESDAY...Southwest winds 5 to 10 knots. Seas around 2 feet.
Wave Detail: South 2 feet at 5 seconds. A chance of
thunderstorms. Showers likely, mainly in the morning.
.WEDNESDAY NIGHT...Southwest winds around 10 knots. Seas around
2 feet. Wave Detail: Southwest 2 feet at 3 seconds and south
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...Southwest winds 10 to 15 knots. Seas around 2 feet.
Wave Detail: South 2 feet at 5 seconds. A chance of
thunderstorms. Showers likely, mainly in the morning.
.THURSDAY NIGHT...South winds 10 to 15 knots. Seas 2 to 3 feet.
Wave Detail: South 3 feet at 5 seconds. A slight chance of
showers and thunderstorms after midnight.
.FRIDAY...South winds 10 to 15 knots. Seas 2 to 3 feet. A chance
of showers and thunderstorms.
.FRIDAY NIGHT...South winds 10 to 15 knots. Seas 2 to 3 feet. A
chance of showers and thunderstorms after midnight.
.SATURDAY...South winds 10 to 15 knots. Seas 2 to 3 feet. A
chance of thunderstorms. Showers likely, mainly in the morning.
.SATURDAY NIGHT...South winds around 10 knots. Seas around
2 feet. A chance of showers and thunderstorms after midnight.

Winds and seas higher in and near thunderstorms.

$$

GMZ452-081800-
Coastal waters from Intracoastal City to Cameron LA out 20 NM-
1239 AM CDT Tue Jul 8 2025

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

Winds and seas higher in and near thunderstorms.

$$

GMZ455-081800-
Coastal waters from Lower Atchafalaya River to Intracoastal City
LA out 20 NM-
1239 AM CDT Tue Jul 8 2025

.TODAY...South winds around 5 knots. Seas 1 foot or less. Wave
Detail: South 1 foot at 3 seconds. A chance of thunderstorms.
.TONIGHT...Southwest winds around 5 knots. Seas 1 foot or less.
Wave Detail: Southwest 1 foot at 2 seconds. A chance of showers
and thunderstorms.
.WEDNESDAY...Southwest winds 5 to 10 knots. Seas 1 foot or less.
Wave Detail: Southwest 1 foot at 3 seconds. Showers likely with a
chance of thunderstorms.
.WEDNESDAY NIGHT...Southwest 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.
.THURSDAY...Southwest winds 5 to 10 knots. Seas 1 foot or less.
Wave Detail: Southwest 1 foot at 3 seconds. A chance of
thunderstorms. Showers likely, mainly in the morning.
.THURSDAY NIGHT...Southwest 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 with a slight chance of
thunderstorms after midnight.
.FRIDAY...South winds 5 to 10 knots. Seas around 2 feet. A chance
of thunderstorms. Showers likely, mainly in the morning.
.FRIDAY NIGHT...South winds 5 to 10 knots. Seas around 2 feet. A
chance of showers and thunderstorms after midnight.
.SATURDAY...South winds 5 to 10 knots. Seas around 2 feet. A
chance of thunderstorms. Showers likely, mainly in the morning.
.SATURDAY 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.

$$

GMZ470-081800-
Coastal waters from Cameron LA to High Island TX from 20 to 60 NM-
1239 AM CDT Tue Jul 8 2025

.TODAY...South winds 5 to 10 knots. Seas around 2 feet. Wave
Detail: South 2 feet at 5 seconds. A chance of showers and
thunderstorms early this morning, then showers and thunderstorms
likely late this morning. A chance of showers and thunderstorms
this afternoon.
.TONIGHT...South winds 5 to 10 knots. Seas around 2 feet. Wave
Detail: South 2 feet at 6 seconds. A chance of showers in the
evening, then a slight chance of showers and thunderstorms after
midnight.
.WEDNESDAY...Southwest winds 5 to 10 knots. Seas around 2 feet.
Wave Detail: South 2 feet at 6 seconds. A chance of
thunderstorms. Showers likely, mainly in the morning.
.WEDNESDAY NIGHT...Southwest winds around 10 knots. Seas around
2 feet. Wave Detail: Southwest 2 feet at 4 seconds and south
2 feet at 7 seconds. A chance of showers with a slight chance of
thunderstorms after midnight.
.THURSDAY...Southwest winds around 10 knots. Seas around 2 feet.
Wave Detail: South 2 feet at 5 seconds. Showers likely with a
chance of thunderstorms in the morning, then a chance of showers
with a slight chance of thunderstorms in the afternoon.
.THURSDAY NIGHT...South winds 10 to 15 knots. Seas 2 to 3 feet.
Wave Detail: South 2 feet at 5 seconds. A slight chance of
showers and thunderstorms after midnight.
.FRIDAY...South winds 10 to 15 knots. Seas around 3 feet. A
chance of showers and thunderstorms.
.FRIDAY NIGHT...South winds 10 to 15 knots. Seas around 3 feet. A
chance of showers and thunderstorms after midnight.
.SATURDAY...South winds around 10 knots. Seas 2 to 3 feet. A
chance of thunderstorms. Showers likely, mainly in the morning.
.SATURDAY NIGHT...South winds around 10 knots. Seas 2 to 3 feet.
A chance of showers and thunderstorms after midnight.

Winds and seas higher in and near thunderstorms.

$$

GMZ472-081800-
Coastal waters from Intracoastal City to Cameron LA from 20 to
60 NM-
1239 AM CDT Tue Jul 8 2025

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

Winds and seas higher in and near thunderstorms.

$$

GMZ475-081800-
Coastal waters from Lower Atchafalaya River to Intracoastal City
LA from 20 to 60 NM-
1239 AM CDT Tue Jul 8 2025

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

Winds and seas higher in and near thunderstorms.

$$