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FZUS54 KLCH 242048
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Coastal Waters Forecast
National Weather Service Lake Charles LA
348 PM CDT Tue Sep 24 2024

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.

GMZ400-250915-
348 PM CDT Tue Sep 24 2024

.SYNOPSIS...
A weak pressure gradient at the surface will keep winds light
with a general onshore component today. A few showers or
thunderstorms have developed right over the coast and over the
waters, along with a waterspout sited this morning.

Scattered showers and thunderstorms will be possible again
Wednesday as a cold front pushes slowly through the area. Offshore
winds will increase in the wake of the front Wednesday.

TS Helene is expected to become a major hurricane over the
eastern Gulf of Mexico in the next two days. Based on the current
forecast track and intensity, offshore flow in the 20-30 knot
range and increasing seas in the 6 to 10ft range are expected to
develop Thursday as the cyclone approaches the coast of the
Florida panhandle and moves inland.

$$

GMZ430-250915-
Sabine Lake-
348 PM CDT Tue Sep 24 2024

.TONIGHT...South winds around 5 knots this evening, becoming
light and variable, then becoming northwest around 5 knots late.
Lake waters smooth. A slight chance of showers and thunderstorms
early this evening.
.WEDNESDAY...North winds around 5 knots. Lake waters smooth. A
slight chance of showers and thunderstorms in the morning, then a
chance of showers and thunderstorms in the afternoon.
.WEDNESDAY NIGHT...Northeast winds 5 to 10 knots. Lake waters
light chop. A chance of showers and thunderstorms in the evening.
.THURSDAY...North winds 10 to 15 knots. Lake waters choppy.
.THURSDAY NIGHT...North winds 5 to 10 knots. Lake waters light
chop.
.FRIDAY...Northwest winds 5 to 10 knots. Lake waters light chop.
.FRIDAY NIGHT...West winds 5 to 10 knots. Lake waters light chop.
.SATURDAY...West winds 5 to 10 knots. Lake waters light chop.
.SATURDAY NIGHT...West winds around 5 knots. Lake waters smooth.
.SUNDAY...Northwest winds around 5 knots. Lake waters smooth.
.SUNDAY NIGHT...Northwest winds around 5 knots. Lake waters
smooth.

Winds and waves higher in and near thunderstorms.

$$

GMZ432-250915-
Calcasieu Lake-
348 PM CDT Tue Sep 24 2024

.TONIGHT...South winds around 5 knots, becoming northwest late.
Lake waters smooth.
.WEDNESDAY...North winds around 5 knots. Lake waters smooth. A
chance of showers. A slight chance of thunderstorms in the
morning, then a chance of thunderstorms in the afternoon.
.WEDNESDAY NIGHT...Northeast winds 5 to 10 knots, becoming north
10 to 15 knots with gusts up to 20 knots after midnight. Lake
waters choppy. A chance of showers and thunderstorms in the
evening.
.THURSDAY...North winds around 15 knots with gusts up to
20 knots. Lake waters choppy.
.THURSDAY NIGHT...North winds 10 to 15 knots. Lake waters choppy.
.FRIDAY...Northwest winds around 10 knots. Lake waters light
chop.
.FRIDAY NIGHT...West winds 5 to 10 knots. Lake waters light chop.
.SATURDAY...West winds 5 to 10 knots. Lake waters light chop.
.SATURDAY NIGHT...West winds 5 to 10 knots. Lake waters light
chop.
.SUNDAY...West winds around 5 knots. Lake waters smooth.
.SUNDAY NIGHT...Northwest winds 5 to 10 knots, becoming north
after midnight. Lake waters light chop.

Winds and waves higher in and near thunderstorms.

$$

GMZ435-250915-
Vermilion and West Cote Blanche Bays-
348 PM CDT Tue Sep 24 2024

.TONIGHT...South winds around 5 knots, becoming west late. Bay
waters smooth.
.WEDNESDAY...North winds around 5 knots. Bay waters smooth. A
slight chance of showers and thunderstorms in the afternoon.
.WEDNESDAY NIGHT...Northeast winds 5 to 10 knots, becoming north
10 to 15 knots with gusts up to 20 knots after midnight. Bay
waters choppy. A chance of showers and thunderstorms in the
evening.
.THURSDAY...North winds 15 to 20 knots with gusts up to 25 knots.
Bay waters rough.
.THURSDAY NIGHT...North winds 15 to 20 knots with gusts up to
25 knots, becoming northwest 10 to 15 knots after midnight. Bay
waters rough.
.FRIDAY...Northwest winds 10 to 15 knots. Bay waters choppy.
.FRIDAY NIGHT...West winds around 10 knots. Bay waters light
chop.
.SATURDAY...West winds 10 to 15 knots. Bay waters choppy.
.SATURDAY NIGHT...West winds 5 to 10 knots. Bay waters light
chop.
.SUNDAY...West winds 5 to 10 knots. Bay waters light chop.
.SUNDAY NIGHT...West winds 5 to 10 knots, becoming northwest
after midnight. Bay waters light chop.

Winds and waves higher in and near thunderstorms.

$$

GMZ436-250915-
Atchafalaya and East Cote Blanche Bays-
348 PM CDT Tue Sep 24 2024

.TONIGHT...South winds around 5 knots early this evening,
becoming light and variable, then becoming east around 5 knots
late. Bay waters smooth.
.WEDNESDAY...North winds around 5 knots. Bay waters smooth. A
slight chance of showers and thunderstorms in the afternoon.
.WEDNESDAY NIGHT...Northeast winds 5 to 10 knots, becoming north
10 to 15 knots with gusts up to 20 knots after midnight. Bay
waters choppy. A slight chance of showers and thunderstorms in
the evening.
.THURSDAY...North winds 10 to 15 knots with gusts up to 20 knots.
Bay waters choppy.
.THURSDAY NIGHT...North winds 10 to 15 knots. Bay waters choppy.
.FRIDAY...Northwest winds around 10 knots. Bay waters light chop.
.FRIDAY NIGHT...West winds around 10 knots. Bay waters light
chop.
.SATURDAY...West winds around 10 knots. Bay waters light chop.
.SATURDAY NIGHT...West winds 5 to 10 knots. Bay waters light
chop.
.SUNDAY...West winds 5 to 10 knots. Bay waters light chop.
.SUNDAY NIGHT...West winds 5 to 10 knots. Bay waters light chop.

Winds and waves higher in and near thunderstorms.

$$

GMZ450-250915-
Coastal waters from Cameron LA to High Island TX out 20 NM-
348 PM CDT Tue Sep 24 2024

.TONIGHT...South winds around 5 knots, becoming west late. Seas
1 foot or less. Wave Detail: Southeast 1 foot at 4 seconds.
.WEDNESDAY...North winds 5 to 10 knots, becoming northeast in the
afternoon. Seas 1 foot or less. Wave Detail: East 1 foot at
4 seconds and northwest 1 foot at 4 seconds. A slight chance of
showers. A slight chance of thunderstorms in the morning, then a
chance of thunderstorms in the afternoon.
.WEDNESDAY NIGHT...Northeast winds 10 to 15 knots, increasing to
15 to 20 knots after midnight. Seas 2 to 3 feet. Wave Detail:
Northeast 3 feet at 4 seconds. A chance of showers and
thunderstorms in the evening.
.THURSDAY...North winds 15 to 20 knots with gusts up to 25 knots.
Seas 2 to 4 feet. Wave Detail: Northeast 3 feet at 4 seconds.
.THURSDAY NIGHT...North winds 15 to 20 knots, diminishing to
10 to 15 knots after midnight. Seas 2 to 3 feet. Wave Detail:
Northeast 3 feet at 6 seconds and north 2 feet at 3 seconds.
.FRIDAY...Northwest winds 10 to 15 knots. Seas 2 to 3 feet. Wave
Detail: Northwest 2 feet at 3 seconds and southeast 1 foot at
11 seconds.
.FRIDAY NIGHT...West winds 10 to 15 knots. Seas around 2 feet.
.SATURDAY...West winds 10 to 15 knots. Seas around 2 feet.
.SATURDAY NIGHT...West winds around 10 knots. Seas around 2 feet.
.SUNDAY...West winds 5 to 10 knots. Seas around 2 feet.
.SUNDAY NIGHT...West winds around 10 knots, becoming northwest
after midnight. Seas 1 foot or less.

Winds and seas higher in and near thunderstorms.

$$

GMZ452-250915-
Coastal waters from Intracoastal City to Cameron LA out 20 NM-
348 PM CDT Tue Sep 24 2024

.TONIGHT...South winds around 5 knots, becoming southwest late.
Seas 1 foot or less. Wave Detail: Southeast 1 foot at 4 seconds.
.WEDNESDAY...North winds 5 to 10 knots. Seas 1 foot or less. Wave
Detail: West 1 foot at 2 seconds and east 1 foot at 4 seconds. A
slight chance of showers and thunderstorms.
.WEDNESDAY NIGHT...Northeast winds 10 to 15 knots, increasing to
15 to 20 knots with gusts up to 25 knots after midnight. Seas
2 to 4 feet. Wave Detail: Northeast 3 feet at 4 seconds. A slight
chance of showers and thunderstorms in the evening.
.THURSDAY...North winds around 20 knots with gusts up to
25 knots. Seas 2 to 4 feet. Wave Detail: North 4 feet at
4 seconds.
.THURSDAY NIGHT...North winds 15 to 20 knots with gusts up to
25 knots. Seas 2 to 4 feet. Wave Detail: North 3 feet at
4 seconds and southeast 2 feet at 11 seconds.
.FRIDAY...Northwest winds 10 to 15 knots. Seas 2 to 3 feet. Wave
Detail: Northwest 3 feet at 4 seconds and south 1 foot at
11 seconds.
.FRIDAY NIGHT...West winds 10 to 15 knots. Seas 2 to 3 feet.
.SATURDAY...West winds 10 to 15 knots. Seas 2 to 3 feet.
.SATURDAY NIGHT...West winds 10 to 15 knots. Seas around 2 feet.
.SUNDAY...West winds 5 to 10 knots. Seas around 2 feet.
.SUNDAY NIGHT...West winds around 10 knots, becoming northwest
after midnight. Seas around 2 feet.

Winds and seas higher in and near thunderstorms.

$$

GMZ455-250915-
Coastal waters from Lower Atchafalaya River to Intracoastal City
LA out 20 NM-
348 PM CDT Tue Sep 24 2024

.TONIGHT...Southeast winds around 5 knots this evening, becoming
light and variable, then becoming southeast around 5 knots late.
Seas 1 foot or less.
.WEDNESDAY...Northeast winds 5 to 10 knots. Seas 1 foot or less.
Wave Detail: Northeast 1 foot at 2 seconds. A slight chance of
showers and thunderstorms in the afternoon.
.WEDNESDAY NIGHT...Northeast winds 5 to 10 knots, becoming north
15 to 20 knots after midnight. Seas 1 foot or less, then 2 to
3 feet after midnight. Wave Detail: Northeast 1 foot at
2 seconds, becoming north 2 feet at 3 seconds. A slight chance of
showers and thunderstorms in the evening.
.THURSDAY...North winds 15 to 20 knots with gusts up to 25 knots.
Seas 2 to 3 feet. Wave Detail: North 3 feet at 4 seconds.
.THURSDAY NIGHT...North winds 15 to 20 knots with gusts up to
25 knots. Seas 2 to 4 feet. Wave Detail: North 3 feet at
3 seconds and south 1 foot at 6 seconds.
.FRIDAY...Northwest winds 10 to 15 knots. Seas 2 to 3 feet. Wave
Detail: Northwest 2 feet at 3 seconds.
.FRIDAY NIGHT...West winds 10 to 15 knots. Seas around 2 feet.
.SATURDAY...West winds around 10 knots. Seas around 2 feet.
.SATURDAY NIGHT...West winds around 10 knots. Seas around 2 feet.
.SUNDAY...West winds 5 to 10 knots. Seas around 2 feet in the
morning, then 1 foot or less.
.SUNDAY NIGHT...West winds 5 to 10 knots. Seas 1 foot or less.

Winds and seas higher in and near thunderstorms.

$$

GMZ470-250915-
Coastal waters from Cameron LA to High Island TX from 20 to 60 NM-
348 PM CDT Tue Sep 24 2024

.TONIGHT...Southeast winds around 5 knots, becoming south late.
Seas around 2 feet this evening, then 1 foot or less. Wave
Detail: Southeast 1 foot at 5 seconds.
.WEDNESDAY...North winds 5 to 10 knots. Seas around 2 feet. Wave
Detail: North 2 feet at 3 seconds. A slight chance of
thunderstorms. A chance of showers, mainly in the morning.
.WEDNESDAY NIGHT...Northeast winds 10 to 15 knots, increasing to
15 to 20 knots with gusts up to 25 knots after midnight. Seas
around 2 feet, building to 3 to 5 feet, occasionally to 6 feet
after midnight. Wave Detail: Northeast 2 feet at 4 seconds,
becoming northeast 4 feet at 5 seconds. A chance of showers and
thunderstorms, mainly in the evening.
.THURSDAY...North winds 15 to 20 knots with gusts up to 25 knots.
Seas 4 to 6 feet, occasionally to 8 feet. Wave Detail: Northeast
6 feet at 6 seconds.
.THURSDAY NIGHT...North winds 15 to 20 knots with gusts up to
25 knots. Seas 4 to 6 feet, occasionally to 8 feet. Wave Detail:
Northeast 6 feet at 7 seconds and north 3 feet at 4 seconds.
.FRIDAY...Northwest winds 10 to 15 knots with gusts up to
20 knots. Seas 3 to 5 feet, occasionally to 6 feet. Wave Detail:
Southeast 4 feet at 11 seconds and northwest 3 feet at 4 seconds.
.FRIDAY NIGHT...West winds 10 to 15 knots. Seas 2 to 3 feet.
.SATURDAY...West winds 10 to 15 knots. Seas 2 to 3 feet.
.SATURDAY NIGHT...West winds around 10 knots. Seas around 2 feet.
.SUNDAY...West winds 5 to 10 knots. Seas around 2 feet.
.SUNDAY NIGHT...West winds 5 to 10 knots. Seas around 2 feet.

Winds and seas higher in and near thunderstorms.

$$

GMZ472-250915-
Coastal waters from Intracoastal City to Cameron LA from 20 to
60 NM-
348 PM CDT Tue Sep 24 2024

.TONIGHT...Southeast winds around 5 knots. Seas 1 foot or less.
Wave Detail: Southeast 1 foot at 5 seconds.
.WEDNESDAY...Northeast winds 5 to 10 knots. Seas around 2 feet.
Wave Detail: East 2 feet at 5 seconds. A slight chance of
showers.
.WEDNESDAY NIGHT...Northeast winds 10 to 15 knots, increasing to
15 to 20 knots with gusts up to 25 knots after midnight. Seas
2 to 3 feet, building to 3 to 5 feet, occasionally to 6 feet
after midnight. Wave Detail: Northeast 2 feet at 4 seconds,
becoming northeast 5 feet at 5 seconds. A slight chance of
thunderstorms. A chance of showers, mainly in the evening.
.THURSDAY...North winds 20 to 25 knots with gusts up to 30 knots.
Seas 5 to 8 feet, occasionally to 10 feet. Wave Detail: North
7 feet at 6 seconds.
.THURSDAY NIGHT...North winds 15 to 20 knots with gusts up to
25 knots. Seas 5 to 8 feet, occasionally to 10 feet. Wave Detail:
North 6 feet at 5 seconds and southeast 6 feet at 11 seconds.
.FRIDAY...Northwest winds around 15 knots with gusts up to
20 knots. Seas 4 to 6 feet, occasionally to 8 feet. Wave Detail:
Northwest 4 feet at 5 seconds and southeast 4 feet at 11 seconds.
.FRIDAY NIGHT...West winds 10 to 15 knots. Seas 3 to 4 feet.
.SATURDAY...West winds around 15 knots, diminishing to around
10 knots in the afternoon. Seas 2 to 3 feet.
.SATURDAY NIGHT...West winds around 10 knots. Seas 2 to 3 feet.
.SUNDAY...West winds 5 to 10 knots. Seas around 2 feet.
.SUNDAY NIGHT...West winds 5 to 10 knots. Seas around 2 feet.

Winds and seas higher in and near thunderstorms.

$$

GMZ475-250915-
Coastal waters from Lower Atchafalaya River to Intracoastal City
LA from 20 to 60 NM-
348 PM CDT Tue Sep 24 2024

.TONIGHT...Southeast winds around 5 knots. Seas 1 foot or less.
Wave Detail: Southeast 1 foot at 4 seconds.
.WEDNESDAY...Northeast winds 5 to 10 knots, increasing to 10 to
15 knots in the afternoon. Seas around 2 feet. Wave Detail:
Northeast 2 feet at 4 seconds. A slight chance of showers and
thunderstorms in the afternoon.
.WEDNESDAY NIGHT...Northeast winds 10 to 15 knots, increasing to
15 to 20 knots after midnight. Seas 2 to 3 feet, building to 3 to
5 feet, occasionally to 6 feet after midnight. Wave Detail:
Northeast 3 feet at 5 seconds, becoming northeast 5 feet at
6 seconds. A chance of showers and thunderstorms, mainly in the
evening.
.THURSDAY...North winds 20 to 25 knots with gusts up to 30 knots.
Seas 5 to 7 feet, occasionally to 9 feet, building to 6 to
9 feet, occasionally to 11 feet in the afternoon. Wave Detail:
North 7 feet at 7 seconds, becoming east 8 feet at 10 seconds and
north 6 feet at 5 seconds. A slight chance of showers and
thunderstorms.
.THURSDAY NIGHT...North winds 20 to 25 knots, diminishing to
15 to 20 knots after midnight. Seas 6 to 9 feet, occasionally to
11 feet, subsiding to 5 to 7 feet, occasionally to 9 feet after
midnight. Wave Detail: North 6 feet at 6 seconds and southeast
5 feet at 11 seconds, becoming northwest 6 feet at 6 seconds and
southeast 5 feet at 11 seconds.
.FRIDAY...Northwest winds 15 to 20 knots, diminishing to 10 to
15 knots in the afternoon. Seas 5 to 7 feet, occasionally to
9 feet, subsiding to 3 to 5 feet, occasionally to 6 feet in the
afternoon. Wave Detail: Northwest 5 feet at 5 seconds and
southeast 4 feet at 11 seconds, becoming northwest 4 feet at
5 seconds and southeast 3 feet at 10 seconds.
.FRIDAY NIGHT...West winds 10 to 15 knots. Seas 3 to 4 feet.
.SATURDAY...West winds around 10 knots. Seas 2 to 3 feet.
.SATURDAY NIGHT...West winds around 10 knots. Seas 2 to 3 feet.
.SUNDAY...West winds 5 to 10 knots. Seas around 2 feet. A slight
chance of showers in the morning.
.SUNDAY NIGHT...West winds 5 to 10 knots. Seas around 2 feet. A
slight chance of showers after midnight.

Winds and seas higher in and near thunderstorms.

$$