Coastal Waters Forecast
Issued by NWS Lake Charles, LA

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FZUS54 KLCH 121103
CWFLCH

Coastal Waters Forecast
National Weather Service Lake Charles LA
603 AM CDT Tue Mar 12 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.

GMZ400-130015-
603 AM CDT Tue Mar 12 2024

.SYNOPSIS...
Onshore winds will continue through Saturday. No significant
precipitation is expected through Thursday morning. By Thursday
afternoon, a stronger upper level trough and cut off low over the
Southwest U.S. expected to bring multiple rounds of showers and
thunderstorms Thursday afternoon through Saturday.

$$

GMZ430-130015-
Sabine Lake-
603 AM CDT Tue Mar 12 2024

.TODAY...Southeast winds 5 to 10 knots, becoming south 10 to
15 knots late. Lake waters choppy.
.TONIGHT...Southeast winds 10 to 15 knots, diminishing to 5 to
10 knots after midnight. Lake waters choppy. Patchy fog after
midnight.
.WEDNESDAY...South winds 5 to 10 knots, increasing to 10 to
15 knots in the afternoon. Lake waters choppy. Patchy fog in the
morning.
.WEDNESDAY NIGHT...Southeast winds 15 to 20 knots with gusts up
to 25 knots. Lake waters rough. A slight chance of showers and
thunderstorms after midnight.
.THURSDAY...Southeast winds 15 to 20 knots with gusts up to
25 knots. Lake waters rough. A slight chance of showers and
thunderstorms in the morning, then a chance of showers and
thunderstorms in the afternoon.
.THURSDAY NIGHT...Southeast winds 15 to 20 knots with gusts up to
25 knots. Lake waters rough. A chance of showers and
thunderstorms, mainly in the evening.
.FRIDAY...Southeast winds 10 to 15 knots. Lake waters choppy. A
slight chance of showers and thunderstorms in the morning, then a
chance of showers and thunderstorms in the afternoon.
.FRIDAY NIGHT...Southeast winds 5 to 10 knots. Lake waters light
chop. A chance of showers and thunderstorms, mainly in the
evening.
.SATURDAY...Southeast winds 5 to 10 knots. Lake waters light
chop. A chance of showers and thunderstorms.
.SATURDAY NIGHT...Southeast winds 5 to 10 knots, becoming
northeast after midnight. Lake waters light chop. A chance of
thunderstorms. A chance of showers.

Winds and waves higher in and near thunderstorms.

$$

GMZ432-130015-
Calcasieu Lake-
603 AM CDT Tue Mar 12 2024

.TODAY...Southeast winds 5 to 10 knots, becoming south 10 to
15 knots with gusts up to 20 knots this afternoon. Lake waters
choppy.
.TONIGHT...Southeast winds 10 to 15 knots with gusts up to
20 knots, diminishing to 5 to 10 knots after midnight. Lake
waters choppy. Patchy fog after midnight.
.WEDNESDAY...South winds 10 to 15 knots. Lake waters choppy.
Patchy fog in the morning. A slight chance of showers and
thunderstorms in the afternoon.
.WEDNESDAY NIGHT...Southeast winds 15 to 20 knots with gusts up
to 25 knots. Lake waters rough.
.THURSDAY...Southeast winds 15 to 20 knots, increasing to 20 to
25 knots in the afternoon. Lake waters very rough. A slight
chance of showers and thunderstorms in the morning, then a chance
of showers and thunderstorms in the afternoon.
.THURSDAY NIGHT...Southeast winds 20 to 25 knots, becoming south
15 to 20 knots after midnight. Lake waters very rough. A slight
chance of thunderstorms. A chance of showers, mainly in the
evening.
.FRIDAY...Southeast winds 15 to 20 knots, diminishing to around
10 knots in the afternoon. Lake waters rough. A slight chance of
showers and thunderstorms in the morning, then a chance of
showers and thunderstorms in the afternoon.
.FRIDAY NIGHT...Southeast winds around 10 knots. Lake waters
light chop. A chance of showers and thunderstorms, mainly in the
evening.
.SATURDAY...Southeast winds 5 to 10 knots. Lake waters light
chop. A chance of thunderstorms. A chance of showers.
.SATURDAY NIGHT...Southeast winds around 10 knots, becoming east
after midnight. Lake waters light chop. A chance of showers and
thunderstorms.

Winds and waves higher in and near thunderstorms.

$$

GMZ435-130015-
Vermilion and West Cote Blanche Bays-
603 AM CDT Tue Mar 12 2024

.TODAY...East winds around 5 knots, becoming southeast late this
morning and afternoon. Bay waters light chop.
.TONIGHT...Southeast winds 5 to 10 knots. Bay waters light chop.
Patchy fog after midnight.
.WEDNESDAY...Southeast winds 5 to 10 knots. Bay waters light
chop. Patchy fog in the morning. A slight chance of showers and
thunderstorms.
.WEDNESDAY NIGHT...Southeast winds 5 to 10 knots. Bay waters
light chop.
.THURSDAY...Southeast winds 10 to 15 knots with gusts up to
20 knots. Bay waters choppy. A slight chance of showers and
thunderstorms.
.THURSDAY NIGHT...Southeast winds 15 to 20 knots with gusts up to
25 knots. Bay waters rough. A slight chance of showers and
thunderstorms in the evening.
.FRIDAY...South winds 10 to 15 knots. Bay waters choppy. A slight
chance of showers and thunderstorms in the morning, then a chance
of showers and thunderstorms in the afternoon.
.FRIDAY NIGHT...South winds 5 to 10 knots. Bay waters light chop.
A chance of showers and thunderstorms, mainly in the evening.
.SATURDAY...South winds 5 to 10 knots. Bay waters light chop. A
chance of showers and thunderstorms.
.SATURDAY NIGHT...South winds around 10 knots. Bay waters light
chop. A chance of thunderstorms. A chance of showers.

Winds and waves higher in and near thunderstorms.

$$

GMZ436-130015-
Atchafalaya and East Cote Blanche Bays-
603 AM CDT Tue Mar 12 2024

.TODAY...East winds around 5 knots, becoming southeast late this
morning and early afternoon, then becoming southeast 5 to
10 knots late. Bay and inland waters light chop.
.TONIGHT...Southeast winds 5 to 10 knots. Bay and inland waters
light chop.
.WEDNESDAY...Southeast winds 5 to 10 knots. Bay and inland waters
light chop. A slight chance of thunderstorms. A chance of
showers, mainly in the morning.
.WEDNESDAY NIGHT...Southeast winds 5 to 10 knots. Bay and inland
waters light chop.
.THURSDAY...Southeast winds 5 to 10 knots, increasing to 10 to
15 knots with gusts up to 20 knots in the afternoon. Bay and
inland waters choppy. A chance of showers and thunderstorms.
.THURSDAY NIGHT...Southeast winds 10 to 15 knots with gusts up to
25 knots. Bay and inland waters choppy. A slight chance of
showers and thunderstorms in the evening.
.FRIDAY...South winds 10 to 15 knots. Bay and inland waters
choppy. A slight chance of showers and thunderstorms in the
morning, then a chance of showers and thunderstorms in the
afternoon.
.FRIDAY NIGHT...South winds 5 to 10 knots. Bay and inland waters
light chop. A chance of showers and thunderstorms, mainly in the
evening.
.SATURDAY...South winds 5 to 10 knots. Bay and inland waters
light chop. A slight chance of showers and thunderstorms in the
morning, then a chance of showers and thunderstorms in the
afternoon.
.SATURDAY NIGHT...South winds around 10 knots. Bay and inland
waters light chop. A chance of showers and thunderstorms.

Winds and waves higher in and near thunderstorms.

$$

GMZ450-130015-
Coastal waters from Cameron LA to High Island TX out 20 NM-
603 AM CDT Tue Mar 12 2024

.TODAY...Southeast winds 10 to 15 knots. Seas around 2 feet.
.TONIGHT...Southeast winds 10 to 15 knots. Seas around 2 feet.
Patchy fog after midnight.
.WEDNESDAY...Southeast winds 10 to 15 knots. Seas around 2 feet.
Patchy fog in the morning. A slight chance of showers and
thunderstorms in the afternoon.
.WEDNESDAY NIGHT...Southeast winds 15 to 20 knots. Seas 2 to
3 feet. A slight chance of showers and thunderstorms after
midnight.
.THURSDAY...Southeast winds 15 to 20 knots. Seas 2 to 4 feet. A
chance of showers and thunderstorms in the afternoon.
.THURSDAY NIGHT...Southeast winds 15 to 20 knots with gusts up to
25 knots. Seas 2 to 4 feet. A slight chance of showers and
thunderstorms.
.FRIDAY...Southeast winds 10 to 15 knots. Seas 2 to 3 feet. A
slight chance of showers and thunderstorms in the morning, then a
chance of showers and thunderstorms in the afternoon.
.FRIDAY NIGHT...Southeast winds 5 to 10 knots. Seas 2 to 3 feet.
A chance of showers and thunderstorms, mainly in the evening.
.SATURDAY...Southeast winds 5 to 10 knots. Seas 2 to 3 feet. A
chance of thunderstorms. A chance of showers.
.SATURDAY NIGHT...East winds 5 to 10 knots. Seas around 2 feet. A
chance of showers and thunderstorms.

Winds and seas higher in and near thunderstorms.

$$

GMZ452-130015-
Coastal waters from Intracoastal City to Cameron LA out 20 NM-
603 AM CDT Tue Mar 12 2024

.TODAY...Southeast winds 5 to 10 knots, increasing to 10 to
15 knots late. Seas around 2 feet.
.TONIGHT...Southeast winds 10 to 15 knots, diminishing to 5 to
10 knots after midnight. Seas around 2 feet. Patchy fog after
midnight.
.WEDNESDAY...Southeast winds 10 to 15 knots. Seas around 2 feet.
A slight chance of showers and thunderstorms in the morning.
Patchy fog in the morning.
.WEDNESDAY NIGHT...Southeast winds 15 to 20 knots. Seas 2 to
3 feet.
.THURSDAY...Southeast winds 15 to 20 knots with gusts up to
25 knots. Seas 2 to 4 feet. A slight chance of showers and
thunderstorms in the afternoon.
.THURSDAY NIGHT...Southeast winds 15 to 20 knots with gusts up to
25 knots. Seas 2 to 4 feet. A slight chance of showers and
thunderstorms.
.FRIDAY...Southeast winds 10 to 15 knots. Seas 2 to 3 feet. A
slight chance of showers and thunderstorms in the morning, then a
chance of showers and thunderstorms in the afternoon.
.FRIDAY NIGHT...Southeast winds 5 to 10 knots. Seas 2 to 3 feet.
A chance of showers and thunderstorms, mainly in the evening.
.SATURDAY...Southeast winds 5 to 10 knots. Seas 2 to 3 feet. A
chance of showers and thunderstorms.
.SATURDAY NIGHT...South winds around 10 knots. Seas 2 to 3 feet.
A chance of showers and thunderstorms.

Winds and seas higher in and near thunderstorms.

$$

GMZ455-130015-
Coastal waters from Lower Atchafalaya River to Intracoastal City
LA out 20 NM-
603 AM CDT Tue Mar 12 2024

.TODAY...Southeast winds 5 to 10 knots. Seas 1 foot or less.
.TONIGHT...Southeast winds 5 to 10 knots. Seas 1 foot or less.
.WEDNESDAY...Southeast winds 5 to 10 knots. Seas around 2 feet. A
slight chance of thunderstorms. A chance of showers, mainly in
the morning.
.WEDNESDAY NIGHT...Southeast winds 5 to 10 knots. Seas around
2 feet.
.THURSDAY...Southeast winds 5 to 10 knots, increasing to 10 to
15 knots with gusts up to 20 knots in the afternoon. Seas around
2 feet. A slight chance of showers and thunderstorms.
.THURSDAY NIGHT...Southeast winds 10 to 15 knots with gusts up to
25 knots. Seas 2 to 3 feet.
.FRIDAY...Southeast winds around 10 knots. Seas 2 to 3 feet. A
slight chance of showers and thunderstorms in the morning, then a
chance of showers and thunderstorms in the afternoon.
.FRIDAY NIGHT...Southeast winds 5 to 10 knots. Seas around
2 feet. A slight chance of thunderstorms. A chance of showers,
mainly in the evening.
.SATURDAY...Southeast winds around 5 knots, increasing to around
10 knots in the afternoon. Seas around 2 feet. A slight chance of
showers and thunderstorms.
.SATURDAY NIGHT...South winds around 10 knots. Seas around
2 feet. A chance of showers and thunderstorms.

Winds and seas higher in and near thunderstorms.

$$

GMZ470-130015-
Coastal waters from Cameron LA to High Island TX from 20 to 60 NM-
603 AM CDT Tue Mar 12 2024

.TODAY...Southeast winds 5 to 10 knots. Seas around 2 feet.
.TONIGHT...Southeast winds around 10 knots. Seas around 2 feet.
.WEDNESDAY...Southeast winds around 10 knots. Seas 2 to 3 feet. A
slight chance of showers and thunderstorms.
.WEDNESDAY NIGHT...Southeast winds 10 to 15 knots with gusts up
to 20 knots. Seas 2 to 3 feet.
.THURSDAY...Southeast winds around 15 knots with gusts up to
20 knots. Seas 3 to 4 feet. A slight chance of showers and
thunderstorms in the afternoon.
.THURSDAY NIGHT...Southeast winds 15 to 20 knots, diminishing to
10 to 15 knots after midnight. Gusts up to 30 knots. Seas 4 to
5 feet, occasionally to 6 feet. A slight chance of showers and
thunderstorms.
.FRIDAY...Southeast winds 10 to 15 knots. Seas 3 to 4 feet. A
chance of showers with a slight chance of thunderstorms in the
afternoon.
.FRIDAY NIGHT...Southeast winds around 10 knots. Seas 3 to
5 feet, occasionally to 6 feet. A slight chance of showers and
thunderstorms.
.SATURDAY...Southeast winds around 10 knots. Seas 3 to 4 feet. A
chance of showers and thunderstorms.
.SATURDAY NIGHT...Southeast winds 5 to 10 knots. Seas 3 to
4 feet. A chance of showers and thunderstorms.

Winds and seas higher in and near thunderstorms.

$$

GMZ472-130015-
Coastal waters from Intracoastal City to Cameron LA from 20 to
60 NM-
603 AM CDT Tue Mar 12 2024

.TODAY...Southeast winds 5 to 10 knots. Seas around 2 feet.
.TONIGHT...Southeast winds 10 to 15 knots. Seas around 2 feet.
.WEDNESDAY...South winds around 10 knots. Seas 2 to 3 feet. A
slight chance of showers and thunderstorms.
.WEDNESDAY NIGHT...Southeast winds 10 to 15 knots. Seas 2 to
3 feet.
.THURSDAY...Southeast winds 15 to 20 knots. Seas 3 to 4 feet. A
slight chance of showers and thunderstorms in the afternoon.
.THURSDAY NIGHT...Southeast winds 15 to 20 knots with gusts up to
25 knots. Seas 4 to 5 feet, occasionally to 6 feet.
.FRIDAY...Southeast winds 10 to 15 knots. Seas 4 to 5 feet,
occasionally to 6 feet. A slight chance of showers and
thunderstorms in the afternoon.
.FRIDAY NIGHT...Southeast winds around 10 knots. Seas 4 to
5 feet, occasionally to 6 feet. A slight chance of showers and
thunderstorms.
.SATURDAY...Southeast winds 5 to 10 knots. Seas 3 to 5 feet,
occasionally to 6 feet. A slight chance of showers and
thunderstorms.
.SATURDAY NIGHT...South winds around 10 knots. Seas 3 to 4 feet.
A chance of showers. A slight chance of thunderstorms in the
evening, then a chance of thunderstorms after midnight.

Winds and seas higher in and near thunderstorms.

$$

GMZ475-130015-
Coastal waters from Lower Atchafalaya River to Intracoastal City
LA from 20 to 60 NM-
603 AM CDT Tue Mar 12 2024

.TODAY...Southeast winds 5 to 10 knots. Seas around 2 feet.
.TONIGHT...Southeast winds 5 to 10 knots. Seas 2 to 3 feet.
.WEDNESDAY...Southeast winds 5 to 10 knots. Seas around 2 feet. A
slight chance of thunderstorms. A chance of showers, mainly in
the morning.
.WEDNESDAY NIGHT...Southeast winds 10 to 15 knots. Seas 2 to
3 feet.
.THURSDAY...Southeast winds 10 to 15 knots with gusts up to
20 knots. Seas 2 to 4 feet. A slight chance of showers and
thunderstorms.
.THURSDAY NIGHT...Southeast winds 10 to 15 knots with gusts up to
25 knots. Seas 3 to 5 feet, occasionally to 6 feet.
.FRIDAY...Southeast winds 10 to 15 knots. Seas 4 to 5 feet,
occasionally to 6 feet. A slight chance of showers and
thunderstorms in the afternoon.
.FRIDAY NIGHT...Southeast winds around 10 knots. Seas 3 to
5 feet, occasionally to 6 feet. A slight chance of showers and
thunderstorms.
.SATURDAY...Southeast winds 5 to 10 knots. Seas 3 to 4 feet. A
slight chance of showers and thunderstorms.
.SATURDAY NIGHT...South winds around 10 knots. Seas 3 to 4 feet.
A chance of showers with a slight chance of thunderstorms.

Winds and seas higher in and near thunderstorms.

$$


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