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FZUS54 KLCH 240915
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Coastal Waters Forecast
National Weather Service Lake Charles LA
415 AM 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.

GMZ400-242130-
415 AM 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 may develop over the coastal waters this afternoon
as a weak prefrontal boundary meanders inland. 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.

Potential Tropical Cyclone #9 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 are expected to
develop Thursday as the cyclone approaches the coast of the
Florida panhandle and moves inland.

$$

GMZ430-242130-
Sabine Lake-
415 AM CDT Tue Sep 24 2024

.TODAY...Light and variable winds, becoming south around 5 knots
this afternoon. Lake waters smooth. A slight chance of showers
and thunderstorms this afternoon.
.TONIGHT...Southwest winds around 5 knots, becoming north after
midnight. Lake waters smooth. A slight chance of showers and
thunderstorms.
.WEDNESDAY...Northeast winds 5 to 10 knots. Lake waters light
chop. A chance of showers and thunderstorms.
.WEDNESDAY NIGHT...North winds 5 to 10 knots. Lake waters light
chop.
.THURSDAY...North winds 10 to 15 knots. Lake waters choppy.
.THURSDAY NIGHT...Northwest winds 5 to 10 knots. Lake waters
light chop.
.FRIDAY...Northwest winds 5 to 10 knots. Lake waters light chop.
.FRIDAY NIGHT...West winds around 5 knots. Lake waters smooth.
.SATURDAY...West winds around 5 knots. Lake waters smooth.
.SATURDAY NIGHT...West winds around 5 knots. Lake waters smooth.

Winds and waves higher in and near thunderstorms.

$$

GMZ432-242130-
Calcasieu Lake-
415 AM CDT Tue Sep 24 2024

.TODAY...Light and variable winds, becoming northeast around
5 knots late this morning, then becoming south this afternoon.
Lake waters smooth.
.TONIGHT...Southwest winds around 5 knots, becoming northwest
after midnight. Lake waters smooth. A slight chance of showers
and thunderstorms.
.WEDNESDAY...North winds 5 to 10 knots. Lake waters light chop. A
chance of showers and thunderstorms.
.WEDNESDAY NIGHT...North winds 10 to 15 knots. Lake waters
choppy.
.THURSDAY...North winds 10 to 15 knots with gusts up to 20 knots.
Lake waters choppy.
.THURSDAY NIGHT...Northwest winds 10 to 15 knots with gusts up to
20 knots, diminishing to 5 to 10 knots after midnight. Lake
waters choppy.
.FRIDAY...West 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...Southwest winds 5 to 10 knots. Lake waters
light chop.

Winds and waves higher in and near thunderstorms.

$$

GMZ435-242130-
Vermilion and West Cote Blanche Bays-
415 AM CDT Tue Sep 24 2024

.TODAY...Light and variable winds, becoming east around 5 knots
late this morning and early afternoon, then becoming south late.
Bay waters smooth.
.TONIGHT...Southwest winds around 5 knots, becoming northwest
after midnight. Bay waters smooth.
.WEDNESDAY...North 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.
.WEDNESDAY NIGHT...North winds 10 to 15 knots. Bay waters choppy.
.THURSDAY...North winds 15 to 20 knots with gusts up to 25 knots.
Bay waters rough.
.THURSDAY NIGHT...Northwest winds 15 to 20 knots, diminishing to
10 to 15 knots after midnight. Bay waters rough.
.FRIDAY...West winds around 10 knots. Bay waters light chop.
.FRIDAY NIGHT...West winds 5 to 10 knots. Bay waters light chop.
.SATURDAY...West winds 5 to 10 knots. Bay waters light chop.
.SATURDAY NIGHT...Southwest winds 5 to 10 knots. Bay waters light
chop.

Winds and waves higher in and near thunderstorms.

$$

GMZ436-242130-
Atchafalaya and East Cote Blanche Bays-
415 AM CDT Tue Sep 24 2024

.TODAY...East winds around 5 knots, becoming south late. Bay
waters smooth.
.TONIGHT...South winds around 5 knots, becoming north after
midnight. Bay waters smooth.
.WEDNESDAY...North 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.
.WEDNESDAY NIGHT...North winds 10 to 15 knots. 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. A slight chance of showers in the afternoon.
.THURSDAY NIGHT...Northwest winds 10 to 15 knots. Bay waters
choppy.
.FRIDAY...West winds around 10 knots. Bay waters light chop.
.FRIDAY NIGHT...West winds 5 to 10 knots. Bay waters light chop.
.SATURDAY...Southwest winds 5 to 10 knots. Bay waters light chop.
.SATURDAY NIGHT...Southwest winds 5 to 10 knots. Bay waters light
chop.

Winds and waves higher in and near thunderstorms.

$$

GMZ450-242130-
Coastal waters from Cameron LA to High Island TX out 20 NM-
415 AM CDT Tue Sep 24 2024

.TODAY...Southeast winds around 5 knots. Seas 1 foot or less.
Wave Detail: Southeast 1 foot at 5 seconds. A slight chance of
showers this morning. A slight chance of showers and
thunderstorms late.
.TONIGHT...South winds around 5 knots, becoming north after
midnight. Seas 1 foot or less. Wave Detail: Southeast 1 foot at
4 seconds. A slight chance of showers and thunderstorms after
midnight.
.WEDNESDAY...Northeast winds around 10 knots. Seas 1 foot or
less. Wave Detail: Northeast 1 foot at 3 seconds. A chance of
showers and thunderstorms, mainly in the morning.
.WEDNESDAY NIGHT...Northeast winds 10 to 15 knots, becoming north
15 to 20 knots after midnight. Seas 2 to 3 feet. Wave Detail:
Northeast 3 feet at 4 seconds.
.THURSDAY...North winds 15 to 20 knots. Seas 2 to 3 feet. Wave
Detail: Northeast 3 feet at 4 seconds.
.THURSDAY NIGHT...North winds 15 to 20 knots, becoming northwest
10 to 15 knots after midnight. Seas 2 to 3 feet. Wave Detail:
North 2 feet at 3 seconds and east 2 feet at 11 seconds.
.FRIDAY...Northwest winds 10 to 15 knots. Seas 2 to 3 feet.
.FRIDAY NIGHT...West winds around 10 knots. Seas around 2 feet.
.SATURDAY...West winds around 10 knots. Seas around 2 feet.
.SATURDAY NIGHT...Southwest winds around 10 knots. Seas around
2 feet.

Winds and seas higher in and near thunderstorms.

$$

GMZ452-242130-
Coastal waters from Intracoastal City to Cameron LA out 20 NM-
415 AM CDT Tue Sep 24 2024

.TODAY...Southeast winds around 5 knots. Seas 1 foot or less.
Wave Detail: Southeast 1 foot at 5 seconds.
.TONIGHT...South winds around 5 knots, becoming northwest after
midnight. 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: North 1 foot at 3 seconds. A slight chance of
thunderstorms. A chance of showers, mainly in the morning.
.WEDNESDAY NIGHT...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. 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 5 seconds.
.THURSDAY NIGHT...North winds 15 to 20 knots, becoming northwest
10 to 15 knots after midnight. Seas 2 to 3 feet. Wave Detail:
Northwest 3 feet at 4 seconds and southeast 2 feet at 11 seconds.
.FRIDAY...Northwest winds 10 to 15 knots. Seas 2 to 3 feet.
.FRIDAY NIGHT...West winds 10 to 15 knots. Seas around 2 feet.
.SATURDAY...West winds around 10 knots. Seas around 2 feet.
.SATURDAY NIGHT...Southwest winds around 10 knots. Seas around
2 feet.

Winds and seas higher in and near thunderstorms.

$$

GMZ455-242130-
Coastal waters from Lower Atchafalaya River to Intracoastal City
LA out 20 NM-
415 AM CDT Tue Sep 24 2024

.TODAY...East winds around 5 knots. Seas 1 foot or less.
.TONIGHT...Southeast winds around 5 knots, becoming northeast
after midnight. Seas 1 foot or less.
.WEDNESDAY...North winds 5 to 10 knots. Seas 1 foot or less. Wave
Detail: Northeast 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.
.WEDNESDAY NIGHT...Northeast winds 10 to 15 knots, becoming north
15 to 20 knots after midnight. Seas 1 to 2 feet, building to 2 to
3 feet after midnight. Wave Detail: North 2 feet at 3 seconds,
becoming north 3 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. A
slight chance of showers in the morning.
.THURSDAY NIGHT...North winds 15 to 20 knots, becoming northwest
10 to 15 knots after midnight. Seas 2 to 3 feet. Wave Detail:
Northwest 3 feet at 3 seconds and south 1 foot at 11 seconds.
.FRIDAY...Northwest winds 10 to 15 knots. Seas 2 to 3 feet.
.FRIDAY NIGHT...West winds around 10 knots. Seas around 2 feet.
.SATURDAY...West winds 5 to 10 knots. Seas around 2 feet.
.SATURDAY NIGHT...Southwest winds 5 to 10 knots. Seas around
2 feet in the evening, then 1 foot or less.

Winds and seas higher in and near thunderstorms.

$$

GMZ470-242130-
Coastal waters from Cameron LA to High Island TX from 20 to 60 NM-
415 AM CDT Tue Sep 24 2024

.TODAY...East winds around 5 knots. Seas around 2 feet. Wave
Detail: Southeast 2 feet at 5 seconds. A slight chance of showers
late this morning. A slight chance of showers late.
.TONIGHT...East winds 5 to 10 knots. Seas 1 foot or less. Wave
Detail: Southeast 1 foot at 5 seconds.
.WEDNESDAY...Northeast winds 10 to 15 knots. Seas 1 foot or less,
then around 2 feet in the afternoon. Wave Detail: Northeast
1 foot at 4 seconds, becoming northeast 2 feet at 4 seconds. A
slight chance of thunderstorms. A chance of showers, mainly in
the morning.
.WEDNESDAY NIGHT...Northeast winds 15 to 20 knots with gusts up
to 25 knots. Seas 2 to 4 feet. Wave Detail: Northeast 4 feet at
5 seconds. A slight chance of showers and thunderstorms.
.THURSDAY...North winds 15 to 20 knots with gusts up to 30 knots.
Seas 3 to 5 feet, occasionally to 6 feet. Wave Detail: Northeast
5 feet at 6 seconds.
.THURSDAY NIGHT...North winds 15 to 20 knots, becoming northwest
10 to 15 knots after midnight. Seas 3 to 5 feet, occasionally to
6 feet. Wave Detail: Northeast 5 feet at 8 seconds.
.FRIDAY...Northwest winds 10 to 15 knots. Seas 3 to 5 feet,
occasionally to 6 feet, subsiding to 2 to 3 feet in the
afternoon.
.FRIDAY NIGHT...West winds around 10 knots. Seas 2 to 3 feet.
.SATURDAY...West winds around 10 knots. Seas 2 to 3 feet.
.SATURDAY NIGHT...Southwest winds around 10 knots. Seas around
2 feet.

Winds and seas higher in and near thunderstorms.

$$

GMZ472-242130-
Coastal waters from Intracoastal City to Cameron LA from 20 to
60 NM-
415 AM CDT Tue Sep 24 2024

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

Winds and seas higher in and near thunderstorms.

$$

GMZ475-242130-
Coastal waters from Lower Atchafalaya River to Intracoastal City
LA from 20 to 60 NM-
415 AM CDT Tue Sep 24 2024

.TODAY...East winds around 5 knots. Seas around 2 feet. Wave
Detail: Southeast 2 feet at 5 seconds.
.TONIGHT...East winds 5 to 10 knots. Seas 1 foot or less. Wave
Detail: East 1 foot at 4 seconds.
.WEDNESDAY...Northeast winds 10 to 15 knots with gusts up to
20 knots. Seas around 2 feet. Wave Detail: Northeast 2 feet at
4 seconds. A chance of showers. A slight chance of thunderstorms
in the afternoon.
.WEDNESDAY NIGHT...Northeast winds 15 to 20 knots, becoming north
20 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 3 feet at 5 seconds, becoming north 5 feet at
6 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 7 feet, occasionally to 9 feet. Wave Detail: Northeast
7 feet at 10 seconds and north 6 feet at 5 seconds. A slight
chance of showers.
.THURSDAY NIGHT...North winds 20 to 25 knots, becoming northwest
15 to 20 knots after midnight. Seas 4 to 6 feet, occasionally to
8 feet. Wave Detail: Northwest 6 feet at 6 seconds and southeast
5 feet at 12 seconds.
.FRIDAY...Northwest winds 10 to 15 knots. Seas 3 to 5 feet,
occasionally to 6 feet.
.FRIDAY NIGHT...West winds around 10 knots. Seas 2 to 3 feet.
.SATURDAY...West winds 5 to 10 knots. Seas 2 to 3 feet.
.SATURDAY NIGHT...Southwest winds 5 to 10 knots. Seas around
2 feet.

Winds and seas higher in and near thunderstorms.

$$