220
FZUS54 KLCH 041807
CWFLCH

Coastal Waters Forecast
National Weather Service Lake Charles LA
107 PM CDT Fri Jul 4 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.

GMZ400-050700-
107 PM CDT Fri Jul 4 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...

High pressure area situated over the northern Gulf, while weak
and meandering at times, will result in light, variable winds and
low seas through the start of next week. During the same time
frame, expansive low over the Florida peninsula expands into the
northeast Gulf. This feature will result in general weakness aloft
and a return to typical summertime pattern of onshore flow and
low seas.

$$

GMZ430-050700-
Sabine Lake-
107 PM CDT Fri Jul 4 2025

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

$$

GMZ432-050700-
Calcasieu Lake-
107 PM CDT Fri Jul 4 2025

.TONIGHT...Southwest winds around 5 knots. Lake waters smooth. A
slight chance of showers and thunderstorms late.
.SATURDAY...Northeast winds around 5 knots, becoming south 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...Northwest winds around 5 knots, becoming southwest in
the afternoon. Lake waters smooth. A chance of showers. A slight
chance of thunderstorms in the morning, then a chance of
thunderstorms in the afternoon.
.SUNDAY NIGHT...Southwest winds around 5 knots. Lake waters
smooth. A slight chance of showers and thunderstorms.
.MONDAY...Southwest winds 5 to 10 knots. Lake waters light chop.
A chance of showers and thunderstorms.
.MONDAY NIGHT...Southwest winds around 5 knots. Lake waters
smooth.
.TUESDAY...Southwest winds 5 to 10 knots. Lake waters light chop.
A chance of showers and thunderstorms.
.TUESDAY NIGHT...Southwest winds 5 to 10 knots. Lake waters light
chop.
.WEDNESDAY...West winds 5 to 10 knots. Lake waters light chop. A
chance of showers and thunderstorms.
.WEDNESDAY 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.

$$

GMZ435-050700-
Vermilion and West Cote Blanche Bays-
107 PM CDT Fri Jul 4 2025

.TONIGHT...Southwest winds around 5 knots, becoming northwest
around 5 knots late. Bay waters smooth. A slight chance of
showers and thunderstorms late.
.SATURDAY...North winds around 5 knots, becoming west around
5 knots in the afternoon. 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...West winds around 5 knots. Bay waters smooth. A
chance of showers and thunderstorms.
.SUNDAY...Northwest winds around 5 knots, becoming west 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...Southwest winds around 5 knots. Bay waters
smooth. A chance of showers and thunderstorms.
.MONDAY...Northwest winds around 5 knots, becoming southwest in
the afternoon. Bay waters smooth. A chance of thunderstorms. A
chance of showers in the morning, then showers likely in the
afternoon.
.MONDAY NIGHT...Southwest winds around 5 knots. Bay waters
smooth. A slight chance of showers and thunderstorms after
midnight.
.TUESDAY...West winds 5 to 10 knots. Bay waters light chop. A
chance of showers and thunderstorms.
.TUESDAY NIGHT...Southwest winds 5 to 10 knots. Bay waters light
chop. A slight chance of showers and thunderstorms after
midnight.
.WEDNESDAY...West winds 5 to 10 knots. Bay waters light chop. A
chance of showers and thunderstorms.
.WEDNESDAY NIGHT...Southwest winds 5 to 10 knots. Bay waters
light chop. A chance of showers and thunderstorms after midnight.

Winds and waves higher in and near thunderstorms.

$$

GMZ436-050700-
Atchafalaya and East Cote Blanche Bays-
107 PM CDT Fri Jul 4 2025

.TONIGHT...West winds around 5 knots. Bay waters smooth. A slight
chance of showers and thunderstorms early this evening. A slight
chance of showers and thunderstorms late.
.SATURDAY...North winds around 5 knots, becoming west in the
afternoon. Bay waters smooth. A slight chance of thunderstorms. A
chance of showers, mainly in the morning.
.SATURDAY NIGHT...West winds around 5 knots. Bay waters smooth. A
chance of showers and thunderstorms.
.SUNDAY...Northwest winds around 5 knots, becoming west in the
afternoon. Bay waters smooth. Showers likely. A chance of
thunderstorms in the morning, then thunderstorms likely in the
afternoon.
.SUNDAY NIGHT...Southwest winds around 5 knots. Bay waters
smooth. A chance of showers and thunderstorms.
.MONDAY...Northwest winds around 5 knots, becoming southwest
around 5 knots in the afternoon. Bay waters smooth. A chance of
thunderstorms. Showers likely, mainly in the morning.
.MONDAY NIGHT...Southwest winds around 5 knots. Bay waters
smooth. A slight chance of showers and thunderstorms after
midnight.
.TUESDAY...West winds around 5 knots, becoming southwest in the
afternoon. Bay waters light chop. A chance of showers and
thunderstorms.
.TUESDAY NIGHT...Southwest winds 5 to 10 knots. Bay waters light
chop. A slight chance of showers and thunderstorms after
midnight.
.WEDNESDAY...West winds 5 to 10 knots. Bay waters light chop. A
chance of showers and thunderstorms.
.WEDNESDAY NIGHT...Southwest 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.

$$

GMZ450-050700-
Coastal waters from Cameron LA to High Island TX out 20 NM-
107 PM CDT Fri Jul 4 2025

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

Winds and seas higher in and near thunderstorms.

$$

GMZ452-050700-
Coastal waters from Intracoastal City to Cameron LA out 20 NM-
107 PM CDT Fri Jul 4 2025

.TONIGHT...Southwest winds around 5 knots. Seas 1 foot or less.
Wave Detail: Southwest 1 foot at 4 seconds. A slight chance of
showers and thunderstorms late.
.SATURDAY...Northwest winds around 5 knots, becoming southwest
around 5 knots in the afternoon. 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 5 to 10 knots. Seas 1 foot or less.
Wave Detail: Southwest 1 foot at 4 seconds. A slight chance of
showers and thunderstorms in the evening, then a chance of
showers and thunderstorms after midnight.
.SUNDAY...Northwest winds 5 to 10 knots, becoming southwest in
the afternoon. Seas 1 foot or less. Wave Detail: West 1 foot at
4 seconds. A chance of showers and thunderstorms.
.SUNDAY NIGHT...Southwest 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 in the evening, then a chance of
showers and thunderstorms after midnight.
.MONDAY...Southwest winds 5 to 10 knots. Seas 1 foot or less.
Wave Detail: Southwest 1 foot at 3 seconds. A chance of showers
and thunderstorms.
.MONDAY NIGHT...Southwest winds 5 to 10 knots. Seas 1 foot or
less. A slight chance of showers and thunderstorms after
midnight.
.TUESDAY...Southwest winds 5 to 10 knots. Seas 1 foot or less. A
chance of showers and thunderstorms.
.TUESDAY NIGHT...Southwest winds 5 to 10 knots. Seas 1 foot or
less, then around 2 feet after midnight. A slight chance of
showers and thunderstorms after midnight.
.WEDNESDAY...West winds 5 to 10 knots. Seas around 2 feet. A
chance of showers and thunderstorms.
.WEDNESDAY NIGHT...Southwest winds 10 to 15 knots. Seas around
2 feet. A chance of showers and thunderstorms after midnight.

Winds and seas higher in and near thunderstorms.

$$

GMZ455-050700-
Coastal waters from Lower Atchafalaya River to Intracoastal City
LA out 20 NM-
107 PM CDT Fri Jul 4 2025

.TONIGHT...West winds around 5 knots. Seas 1 foot or less. A
slight chance of showers and thunderstorms early this evening. A
slight chance of showers and thunderstorms late.
.SATURDAY...Northwest winds around 5 knots. Seas 1 foot or less.
Wave Detail: Northwest 1 foot at 2 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...Northwest winds around 5 knots, becoming west in the
afternoon. Seas 1 foot or less. Wave Detail: Northwest 1 foot at
2 seconds. A chance of thunderstorms. Showers likely, mainly in
the morning.
.SUNDAY NIGHT...Southwest winds around 5 knots. Seas 1 foot or
less. A chance of showers and thunderstorms.
.MONDAY...West winds around 5 knots, becoming southwest around
5 knots in the afternoon. Seas 1 foot or less. Wave Detail:
Southwest 1 foot at 2 seconds. A chance of thunderstorms. Showers
likely, mainly in the morning.
.MONDAY NIGHT...Southwest winds around 5 knots. Seas 1 foot or
less. A chance of showers with a slight chance of thunderstorms
after midnight.
.TUESDAY...Southwest winds around 5 knots. Seas 1 foot or less. A
chance of showers and thunderstorms.
.TUESDAY NIGHT...Southwest winds 5 to 10 knots. Seas 1 foot or
less. A slight chance of showers and thunderstorms after
midnight.
.WEDNESDAY...West winds 5 to 10 knots. Seas 1 foot or less. A
chance of showers and thunderstorms.
.WEDNESDAY NIGHT...Southwest winds 5 to 10 knots. Seas 1 foot or
less, then around 2 feet after midnight. A chance of showers and
thunderstorms after midnight.

Winds and seas higher in and near thunderstorms.

$$

GMZ470-050700-
Coastal waters from Cameron LA to High Island TX from 20 to 60 NM-
107 PM CDT Fri Jul 4 2025

.TONIGHT...South winds 5 to 10 knots. Seas around 2 feet. Wave
Detail: South 2 feet at 5 seconds. A slight chance of showers and
thunderstorms late.
.SATURDAY...South winds around 5 knots. Seas around 2 feet. Wave
Detail: South 1 foot at 4 seconds. A chance of showers with a
slight chance of thunderstorms in the morning.
.SATURDAY NIGHT...Southwest winds around 5 knots. Seas 1 foot or
less. Wave Detail: South 1 foot at 4 seconds. A slight chance of
showers and thunderstorms after midnight.
.SUNDAY...Southwest 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.
.SUNDAY NIGHT...Southwest 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 after midnight.
.MONDAY...Southwest winds around 5 knots. Seas 1 foot or less.
Wave Detail: Southwest 1 foot at 4 seconds. A chance of showers
and thunderstorms in the morning, then a slight chance of showers
in the afternoon.
.MONDAY NIGHT...South winds 5 to 10 knots. Seas 1 foot or less. A
slight chance of showers and thunderstorms after midnight.
.TUESDAY...South winds around 5 knots. Seas 1 foot or less. A
chance of showers and thunderstorms, mainly in the morning.
.TUESDAY NIGHT...Southwest winds 5 to 10 knots. Seas around
2 feet. A slight chance of showers and thunderstorms after
midnight.
.WEDNESDAY...Southwest winds 5 to 10 knots. Seas around 2 feet. A
chance of showers and thunderstorms, mainly in the morning.
.WEDNESDAY NIGHT...Southwest winds around 10 knots. Seas around
2 feet. A slight chance of showers and thunderstorms after
midnight.

Winds and seas higher in and near thunderstorms.

$$

GMZ472-050700-
Coastal waters from Intracoastal City to Cameron LA from 20 to
60 NM-
107 PM CDT Fri Jul 4 2025

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

Winds and seas higher in and near thunderstorms.

$$

GMZ475-050700-
Coastal waters from Lower Atchafalaya River to Intracoastal City
LA from 20 to 60 NM-
107 PM CDT Fri Jul 4 2025

.TONIGHT...Northwest winds around 5 knots, becoming southwest
late this evening and overnight. Seas 1 foot or less. Wave
Detail: West 1 foot at 4 seconds. A slight chance of showers and
thunderstorms early this evening. A slight chance of showers
after midnight. A slight chance of thunderstorms late.
.SATURDAY...Northwest winds 5 to 10 knots. Seas 1 foot or less.
Wave Detail: West 1 foot at 4 seconds. A slight chance of
thunderstorms. A chance of showers, mainly in the morning.
.SATURDAY NIGHT...West winds around 5 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.
.SUNDAY...Northwest winds around 5 knots. Seas 1 foot or less.
Wave Detail: West 1 foot at 3 seconds. A chance of thunderstorms.
Showers likely, mainly in the morning.
.SUNDAY NIGHT...Southwest winds around 5 knots. Seas 1 foot or
less. Wave Detail: West 1 foot at 4 seconds. A slight chance of
showers and thunderstorms in the evening, then a chance of
showers and thunderstorms after midnight.
.MONDAY...Southwest 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.
.MONDAY NIGHT...South winds around 5 knots. Seas 1 foot or less.
A slight chance of showers and thunderstorms after midnight.
.TUESDAY...Southwest winds around 5 knots. Seas 1 foot or less. A
chance of showers with a slight chance of thunderstorms.
.TUESDAY NIGHT...Southwest winds 5 to 10 knots. Seas around
2 feet. A slight chance of showers and thunderstorms after
midnight.
.WEDNESDAY...West winds 5 to 10 knots. Seas around 2 feet. A
chance of showers. A chance of thunderstorms, mainly in the
morning.
.WEDNESDAY NIGHT...Southwest winds around 10 knots. Seas around
2 feet. A chance of showers with a slight chance of thunderstorms
after midnight.

Winds and seas higher in and near thunderstorms.

$$