Coastal Waters Forecast
Issued by NWS Lake Charles, LA

Home |  Current Version |  Previous Version |  Text Only |  Print | Product List |  Glossary On
Versions: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19
068
FZUS54 KLCH 050346
CWFLCH

Coastal Waters Forecast
National Weather Service Lake Charles LA
946 PM CST Wed Dec 4 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.

GMZ400-050930-
946 PM CST Wed Dec 4 2024

.SYNOPSIS...

An upper level disturbance is expected to move across the area,
strengthening a surface trough of low pressure off the Texas
coast. This will keep moderate southeast winds across the 20 to 60
nautical mile marine zones, with increasing chances of showers
and thunderstorms. A strong cold front is expected to push south
across the coastal waters Thursday, bringing and end to the
precipitation and offshore flow through Friday.Enhanced offshore
flow could warrant another Small Craft Advisory issuance. East to
southeast winds resume Saturday as the surface high shifts east.
A stronger upper level trough is expected to approach the region
Saturday night though Sunday, significantly increasing chances of
showers and thunderstorms.

$$

GMZ430-050930-
Sabine Lake-
946 PM CST Wed Dec 4 2024

.REST OF TONIGHT...Southwest winds 5 to 10 knots, becoming
northwest late. Lake waters light chop. Showers late this
evening. A chance of thunderstorms. A chance of showers.
.THURSDAY...Northeast winds 10 to 15 knots with gusts up to
20 knots. Lake waters choppy. A slight chance of showers and
thunderstorms in the morning.
.THURSDAY NIGHT...Northeast winds 15 to 20 knots. Lake waters
rough.
.FRIDAY...Northeast winds 15 to 20 knots, diminishing to 10 to
15 knots in the afternoon. Lake waters rough.
.FRIDAY NIGHT...Northeast winds 10 to 15 knots. Lake waters
choppy. A chance of showers after midnight.
.SATURDAY...Northeast winds 10 to 15 knots. Lake waters choppy. A
chance of showers. A slight chance of thunderstorms in the
afternoon.
.SATURDAY NIGHT...East winds around 10 knots. Lake waters light
chop. A chance of showers with a slight chance of thunderstorms
in the evening, then showers likely with a chance of
thunderstorms after midnight.
.SUNDAY...Southeast winds 10 to 15 knots. Lake waters choppy. A
chance of thunderstorms. Showers.
.SUNDAY NIGHT...South winds 10 to 15 knots. Lake waters choppy.
Showers with a chance of thunderstorms in the evening, then
showers likely after midnight.
.MONDAY...Southwest winds 5 to 10 knots. Lake waters light chop.
A chance of showers.
.MONDAY NIGHT...Southwest winds 5 to 10 knots, becoming northwest
10 to 15 knots after midnight. Lake waters choppy. A slight
chance of showers in the evening, then a chance of showers with a
slight chance of thunderstorms after midnight.

Winds and waves higher in and near thunderstorms.

$$

GMZ432-050930-
Calcasieu Lake-
946 PM CST Wed Dec 4 2024

.REST OF TONIGHT...South winds around 10 knots, becoming
northwest late. Lake waters light chop. A chance of
thunderstorms. Showers late this evening and early morning, then
a chance of showers late.
.THURSDAY...North winds 10 to 15 knots, becoming northeast 15 to
20 knots in the afternoon. Lake waters rough. A slight chance of
showers and thunderstorms in the morning.
.THURSDAY NIGHT...Northeast winds 15 to 20 knots with gusts up to
25 knots. Lake waters rough.
.FRIDAY...Northeast winds 15 to 20 knots, diminishing to 10 to
15 knots in the afternoon. Lake waters rough.
.FRIDAY NIGHT...Northeast winds 10 to 15 knots. Lake waters
choppy. A slight chance of showers after midnight.
.SATURDAY...Northeast winds 10 to 15 knots. Lake waters choppy. A
chance of showers. A slight chance of thunderstorms in the
afternoon.
.SATURDAY NIGHT...East winds 10 to 15 knots. Lake waters choppy.
A chance of showers. A slight chance of thunderstorms in the
evening, then a chance of thunderstorms after midnight.
.SUNDAY...Southeast winds 10 to 15 knots. Lake waters choppy.
Showers likely with a chance of thunderstorms.
.SUNDAY NIGHT...South winds 10 to 15 knots. Lake waters choppy. A
chance of thunderstorms in the evening. Showers.
.MONDAY...South winds around 10 knots. Lake waters light chop. A
chance of showers.
.MONDAY NIGHT...South winds around 10 knots, becoming northwest
after midnight. Lake waters choppy. A chance of showers. A slight
chance of thunderstorms after midnight.

Winds and waves higher in and near thunderstorms.

$$

GMZ435-050930-
Vermilion and West Cote Blanche Bays-
946 PM CST Wed Dec 4 2024

.REST OF TONIGHT...South winds around 10 knots, becoming
southwest late. Bay waters light chop. A chance of showers with a
slight chance of thunderstorms late this evening, then showers
with a chance of thunderstorms.
.THURSDAY...North winds 10 to 15 knots, increasing to 15 to
20 knots in the afternoon. Bay waters rough. A chance of showers
and thunderstorms in the morning.
.THURSDAY NIGHT...Northeast winds 15 to 20 knots. Bay waters
rough.
.FRIDAY...Northeast winds 10 to 15 knots. Bay waters choppy.
.FRIDAY NIGHT...Northeast winds around 10 knots. Bay waters light
chop.
.SATURDAY...East winds around 10 knots. Bay waters light chop. A
slight chance of showers in the morning, then a chance of showers
in the afternoon.
.SATURDAY NIGHT...East winds around 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.
.SUNDAY...Southeast winds 10 to 15 knots. Bay waters choppy. A
chance of showers with a slight chance of thunderstorms.
.SUNDAY NIGHT...South winds 10 to 15 knots. Bay waters choppy. A
chance of thunderstorms. Showers.
.MONDAY...Southwest winds 10 to 15 knots, becoming south 5 to
10 knots in the afternoon. Bay waters choppy. Showers with a
slight chance of thunderstorms in the morning, then showers
likely in the afternoon.
.MONDAY NIGHT...South winds 5 to 10 knots, becoming southwest
after midnight. Bay waters light chop. A chance of showers. A
slight chance of thunderstorms after midnight.

Winds and waves higher in and near thunderstorms.

$$

GMZ436-050930-
Atchafalaya and East Cote Blanche Bays-
946 PM CST Wed Dec 4 2024

.REST OF TONIGHT...South winds 5 to 10 knots. Bay waters light
chop. A slight chance of showers and thunderstorms late this
evening, then showers with a chance of thunderstorms.
.THURSDAY...Northwest winds 5 to 10 knots, becoming north 10 to
15 knots with gusts up to 20 knots in the afternoon. Bay waters
choppy. Showers likely with a chance of thunderstorms in the
morning.
.THURSDAY NIGHT...Northeast winds 10 to 15 knots with gusts up to
20 knots. Bay waters choppy.
.FRIDAY...Northeast winds 10 to 15 knots. Bay waters choppy.
.FRIDAY NIGHT...Northeast winds around 10 knots. Bay waters light
chop.
.SATURDAY...East winds around 10 knots. Bay waters light chop. A
slight chance of showers in the morning, then a chance of showers
in the afternoon.
.SATURDAY NIGHT...East winds 5 to 10 knots. Bay waters light
chop. A slight chance of showers and thunderstorms in the
evening, then a chance of showers after midnight.
.SUNDAY...Southeast winds 10 to 15 knots. Bay waters choppy. A
chance of showers. A slight chance of thunderstorms in the
afternoon.
.SUNDAY NIGHT...South winds 10 to 15 knots. Bay waters choppy. A
chance of thunderstorms. A chance of showers in the evening, then
showers likely after midnight.
.MONDAY...South winds 5 to 10 knots. Bay waters light chop.
Showers with a slight chance of thunderstorms in the morning,
then showers likely in the afternoon.
.MONDAY NIGHT...South winds 5 to 10 knots, becoming southwest
after midnight. Bay waters light chop. Showers likely in the
evening, then showers likely with a slight chance of
thunderstorms after midnight.

Winds and waves higher in and near thunderstorms.

$$

GMZ450-050930-
Coastal waters from Cameron LA to High Island TX out 20 NM-
946 PM CST Wed Dec 4 2024

.REST OF TONIGHT...Southwest winds 10 to 15 knots, becoming
northwest late. Seas 2 to 3 feet. Wave Detail: South 3 feet at
6 seconds. A chance of thunderstorms. Showers late this evening,
then a chance of showers.
.THURSDAY...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 3 feet at 7 seconds. A chance of showers and thunderstorms
in the morning.
.THURSDAY NIGHT...Northeast winds around 20 knots with gusts up
to 25 knots. Seas 3 to 5 feet, occasionally to 6 feet. Wave
Detail: Northeast 4 feet at 5 seconds and south 1 foot at
7 seconds.
.FRIDAY...Northeast winds 15 to 20 knots. Seas 2 to 4 feet. Wave
Detail: Northeast 4 feet at 5 seconds.
.FRIDAY NIGHT...East winds around 15 knots. Seas 2 to 3 feet.
Wave Detail: East 3 feet at 4 seconds. A slight chance of showers
in the evening, then a chance of showers after midnight.
.SATURDAY...East winds around 15 knots with gusts up to 20 knots.
Seas 2 to 4 feet. Wave Detail: East 3 feet at 4 seconds. A chance
of showers.
.SATURDAY NIGHT...East winds 10 to 15 knots. Seas 2 to 4 feet. A
chance of showers with a slight chance of thunderstorms in the
evening, then showers likely with a chance of thunderstorms after
midnight.
.SUNDAY...South winds 10 to 15 knots. Seas 2 to 4 feet. A chance
of thunderstorms. Showers.
.SUNDAY NIGHT...South winds 10 to 15 knots. Seas 2 to 4 feet.
Showers with a chance of thunderstorms in the evening, then
showers likely with a slight chance of thunderstorms after
midnight.
.MONDAY...South winds around 10 knots. Seas 2 to 3 feet. A chance
of showers.
.MONDAY NIGHT...Southwest winds 10 to 15 knots, becoming
northwest after midnight. Seas 2 to 3 feet. A chance of showers.
A slight chance of thunderstorms after midnight.

Winds and seas higher in and near thunderstorms.

$$

GMZ452-050930-
Coastal waters from Intracoastal City to Cameron LA out 20 NM-
946 PM CST Wed Dec 4 2024

.REST OF TONIGHT...South winds 10 to 15 knots, becoming southwest
late. Seas 2 to 4 feet. Wave Detail: South 3 feet at 6 seconds. A
chance of thunderstorms. A chance of showers late this evening,
then showers.
.THURSDAY...North winds 15 to 20 knots, becoming northeast 20 to
25 knots in the afternoon. Seas 2 to 4 feet. Wave Detail:
Northeast 4 feet at 4 seconds and southwest 3 feet at 6 seconds.
A chance of showers and thunderstorms in the morning.
.THURSDAY NIGHT...Northeast winds 20 to 25 knots. Seas 3 to
5 feet, occasionally to 6 feet. Wave Detail: Northeast 4 feet at
4 seconds and south 1 foot at 6 seconds.
.FRIDAY...Northeast winds 15 to 20 knots. Seas 2 to 4 feet. Wave
Detail: Northeast 4 feet at 4 seconds and south 1 foot at
6 seconds.
.FRIDAY NIGHT...East winds around 15 knots. Seas 2 to 3 feet.
Wave Detail: East 3 feet at 4 seconds. A slight chance of showers
after midnight.
.SATURDAY...East winds around 15 knots with gusts up to 20 knots.
Seas 2 to 3 feet. Wave Detail: East 3 feet at 4 seconds. A chance
of showers.
.SATURDAY NIGHT...East winds 15 to 20 knots, becoming southeast
10 to 15 knots after midnight. Seas 2 to 3 feet. A chance of
showers with a slight chance of thunderstorms.
.SUNDAY...Southeast winds 10 to 15 knots. Seas 2 to 4 feet. A
chance of thunderstorms. A chance of showers in the morning, then
showers likely in the afternoon.
.SUNDAY NIGHT...South winds around 15 knots. Seas 2 to 4 feet.
Showers likely with a chance of thunderstorms in the evening,
then showers with a slight chance of thunderstorms after
midnight.
.MONDAY...South winds 10 to 15 knots. Seas 2 to 4 feet. Showers
likely with a slight chance of thunderstorms in the morning, then
a chance of showers in the afternoon.
.MONDAY NIGHT...South winds around 10 knots, becoming west after
midnight. Seas 2 to 3 feet. A chance of showers. A slight chance
of thunderstorms after midnight.

Winds and seas higher in and near thunderstorms.

$$

GMZ455-050930-
Coastal waters from Lower Atchafalaya River to Intracoastal City
LA out 20 NM-
946 PM CST Wed Dec 4 2024

.REST OF TONIGHT...South winds 10 to 15 knots. Seas 2 to 3 feet.
Wave Detail: South 2 feet at 5 seconds and south 1 foot at
2 seconds. A slight chance of showers and thunderstorms late this
evening, then showers with a chance of thunderstorms.
.THURSDAY...Northwest winds 10 to 15 knots, becoming north 15 to
20 knots in the afternoon. Seas 2 to 3 feet. Wave Detail: North
2 feet at 3 seconds and south 2 feet at 6 seconds. Showers likely
with a chance of thunderstorms in the morning, then a slight
chance of showers and thunderstorms in the afternoon.
.THURSDAY NIGHT...Northeast winds 15 to 20 knots. Seas 2 to
3 feet. Wave Detail: North 3 feet at 3 seconds and southwest
1 foot at 6 seconds. A slight chance of showers and thunderstorms
in the evening.
.FRIDAY...Northeast winds 15 to 20 knots, diminishing to 10 to
15 knots in the afternoon. Seas 2 to 3 feet. Wave Detail:
Northeast 2 feet at 3 seconds.
.FRIDAY NIGHT...Northeast winds 10 to 15 knots. Seas around
2 feet. Wave Detail: Northeast 2 feet at 3 seconds.
.SATURDAY...East winds 10 to 15 knots with gusts up to 20 knots.
Seas around 2 feet. Wave Detail: East 2 feet at 3 seconds. A
chance of showers.
.SATURDAY NIGHT...East winds 10 to 15 knots. Seas around 2 feet.
A slight chance of thunderstorms in the evening. A chance of
showers.
.SUNDAY...Southeast winds 10 to 15 knots. Seas 2 to 3 feet. A
chance of showers with a slight chance of thunderstorms.
.SUNDAY NIGHT...South winds 10 to 15 knots. Seas 2 to 4 feet.
Showers likely with a chance of thunderstorms.
.MONDAY...South winds 10 to 15 knots, diminishing to 5 to
10 knots in the afternoon. Seas 2 to 4 feet. Showers with a
slight chance of thunderstorms in the morning, then showers
likely in the afternoon.
.MONDAY NIGHT...South winds 5 to 10 knots, becoming southwest
10 to 15 knots after midnight. Seas around 2 feet. Showers likely
in the evening, then showers likely with a slight chance of
thunderstorms after midnight.

Winds and seas higher in and near thunderstorms.

$$

GMZ470-050930-
Coastal waters from Cameron LA to High Island TX from 20 to 60 NM-
946 PM CST Wed Dec 4 2024

...SMALL CRAFT EXERCISE CAUTION IN EFFECT UNTIL MIDNIGHT CST
TONIGHT...

.REST OF TONIGHT...Southwest winds 10 to 15 knots, becoming west
late. Seas 4 to 6 feet, occasionally to 8 feet. Wave Detail:
South 5 feet at 7 seconds. A chance of thunderstorms. Showers
late this evening and early morning, then a chance of showers
late.
.THURSDAY...North winds 15 to 20 knots, becoming northeast 20 to
25 knots in the afternoon. Seas 4 to 6 feet, occasionally to
8 feet. Wave Detail: Northwest 5 feet at 6 seconds. A chance of
showers and thunderstorms in the morning.
.THURSDAY NIGHT...Northeast winds 20 to 25 knots with gusts up to
30 knots. Seas 5 to 7 feet, occasionally to 9 feet. Wave Detail:
Northeast 6 feet at 5 seconds and southeast 6 feet at 7 seconds.
A slight chance of showers in the evening.
.FRIDAY...Northeast winds 15 to 20 knots with gusts up to
25 knots. Seas 5 to 7 feet, occasionally to 9 feet. Wave Detail:
East 6 feet at 6 seconds.
.FRIDAY NIGHT...East winds 15 to 20 knots with gusts up to
25 knots. Seas 4 to 5 feet, occasionally to 6 feet. Wave Detail:
East 5 feet at 6 seconds. A slight chance of showers in the
evening, then a chance of showers after midnight.
.SATURDAY...East winds 15 to 20 knots. Seas 4 to 5 feet,
occasionally to 6 feet. Wave Detail: East 5 feet at 6 seconds. A
chance of showers in the morning, then showers likely with a
slight chance of thunderstorms in the afternoon.
.SATURDAY NIGHT...Southeast winds 15 to 20 knots. Seas 3 to
5 feet, occasionally to 6 feet. Showers likely. A slight chance
of thunderstorms in the evening, then a chance of thunderstorms
after midnight.
.SUNDAY...South winds around 15 knots. Seas 4 to 6 feet,
occasionally to 8 feet. Showers likely with a chance of
thunderstorms.
.SUNDAY NIGHT...South winds around 15 knots. Seas 4 to 6 feet,
occasionally to 8 feet. Showers. A chance of thunderstorms,
mainly in the evening.
.MONDAY...South winds 10 to 15 knots. Seas 4 to 6 feet,
occasionally to 8 feet. Showers likely, mainly in the morning.
.MONDAY NIGHT...Southwest winds 10 to 15 knots, becoming
northwest after midnight. Seas 3 to 4 feet. A chance of showers.
A slight chance of thunderstorms after midnight.

Winds and seas higher in and near thunderstorms.

$$

GMZ472-050930-
Coastal waters from Intracoastal City to Cameron LA from 20 to
60 NM-
946 PM CST Wed Dec 4 2024

...SMALL CRAFT EXERCISE CAUTION IN EFFECT UNTIL 3 AM CST
THURSDAY...

.REST OF TONIGHT...Southwest winds 15 to 20 knots. Seas 4 to
5 feet, occasionally to 6 feet. Wave Detail: South 5 feet at
6 seconds. A chance of thunderstorms. A chance of showers late
this evening, then showers.
.THURSDAY...Northwest winds 10 to 15 knots, becoming northeast
15 to 20 knots in the afternoon. Seas 4 to 5 feet, occasionally
to 6 feet. Wave Detail: North 5 feet at 5 seconds and southwest
5 feet at 6 seconds. Showers likely with a chance of
thunderstorms in the morning, then a slight chance of showers and
thunderstorms in the afternoon.
.THURSDAY NIGHT...Northeast winds 20 to 25 knots. Seas 5 to
7 feet, occasionally to 9 feet. Wave Detail: Northeast 6 feet at
5 seconds and southeast 6 feet at 6 seconds. A slight chance of
showers and thunderstorms in the evening.
.FRIDAY...Northeast winds 20 to 25 knots, diminishing to 15 to
20 knots in the afternoon. Seas 5 to 7 feet, occasionally to
9 feet. Wave Detail: East 6 feet at 6 seconds.
.FRIDAY NIGHT...East winds 15 to 20 knots. Seas 4 to 5 feet,
occasionally to 6 feet. Wave Detail: East 5 feet at 5 seconds. A
slight chance of showers after midnight.
.SATURDAY...East winds 15 to 20 knots. Seas 4 to 5 feet,
occasionally to 6 feet. Wave Detail: East 5 feet at 6 seconds. A
chance of showers. A slight chance of thunderstorms in the
afternoon.
.SATURDAY NIGHT...Southeast winds 15 to 20 knots. Seas 4 to
5 feet, occasionally to 6 feet. A chance of showers with a slight
chance of thunderstorms.
.SUNDAY...Southeast winds 15 to 20 knots. Seas 4 to 6 feet,
occasionally to 8 feet. A slight chance of thunderstorms. A
chance of showers in the morning, then showers likely in the
afternoon.
.SUNDAY NIGHT...South winds 15 to 20 knots. Seas 5 to 7 feet,
occasionally to 9 feet. Showers likely with a chance of
thunderstorms in the evening, then showers with a slight chance
of thunderstorms after midnight.
.MONDAY...South winds 15 to 20 knots, diminishing to 10 to
15 knots in the afternoon. Seas 5 to 7 feet, occasionally to
9 feet. Showers with a slight chance of thunderstorms in the
morning, then showers likely in the afternoon.
.MONDAY NIGHT...South winds 10 to 15 knots, becoming west after
midnight. Seas 3 to 5 feet, occasionally to 6 feet. A chance of
showers in the evening, then showers likely with a slight chance
of thunderstorms after midnight.

Winds and seas higher in and near thunderstorms.

$$

GMZ475-050930-
Coastal waters from Lower Atchafalaya River to Intracoastal City
LA from 20 to 60 NM-
946 PM CST Wed Dec 4 2024

...SMALL CRAFT EXERCISE CAUTION IN EFFECT UNTIL 6 AM CST
THURSDAY...

.REST OF TONIGHT...South winds 15 to 20 knots. Seas 3 to 5 feet,
occasionally to 6 feet. Wave Detail: South 5 feet at 5 seconds. A
slight chance of showers and thunderstorms. Showers likely with a
slight chance of thunderstorms late.
.THURSDAY...West winds 10 to 15 knots, becoming north 15 to
20 knots in the afternoon. Seas 4 to 5 feet, occasionally to
6 feet. Wave Detail: Southwest 5 feet at 6 seconds and north
3 feet at 4 seconds. Showers with a chance of thunderstorms in
the morning, then a slight chance of showers and thunderstorms in
the afternoon.
.THURSDAY NIGHT...Northeast winds 20 to 25 knots. Seas 5 to
7 feet, occasionally to 9 feet. Wave Detail: Southeast 7 feet at
6 seconds and northeast 6 feet at 5 seconds. A chance of showers
with a slight chance of thunderstorms in the evening.
.FRIDAY...Northeast winds 20 to 25 knots, diminishing to 15 to
20 knots in the afternoon. Seas 5 to 7 feet, occasionally to
9 feet. Wave Detail: East 6 feet at 5 seconds.
.FRIDAY NIGHT...East winds 15 to 20 knots with gusts up to
25 knots. Seas 4 to 6 feet, occasionally to 8 feet. Wave Detail:
East 6 feet at 6 seconds. A slight chance of showers after
midnight.
.SATURDAY...East winds 15 to 20 knots. Seas 3 to 4 feet. Wave
Detail: East 4 feet at 6 seconds. A chance of showers.
.SATURDAY NIGHT...Southeast winds 15 to 20 knots. Seas 3 to
5 feet, occasionally to 6 feet. A slight chance of thunderstorms
in the evening. A chance of showers.
.SUNDAY...Southeast winds 15 to 20 knots. Seas 4 to 6 feet,
occasionally to 8 feet. A chance of showers. A slight chance of
thunderstorms in the afternoon.
.SUNDAY NIGHT...South winds 15 to 20 knots, increasing to 20 to
25 knots after midnight. Seas 5 to 8 feet, occasionally to
10 feet. A chance of thunderstorms. A chance of showers in the
evening, then showers likely after midnight.
.MONDAY...South winds 15 to 20 knots, diminishing to 10 to
15 knots in the afternoon. Seas 5 to 8 feet, occasionally to
10 feet, subsiding to 4 to 6 feet, occasionally to 8 feet in the
afternoon. Showers with a slight chance of thunderstorms in the
morning, then showers in the afternoon.
.MONDAY NIGHT...Southwest winds 10 to 15 knots. Seas 3 to 5 feet,
occasionally to 6 feet. Showers likely in the evening, then
showers likely with a slight chance of thunderstorms after
midnight.

Winds and seas higher in and near thunderstorms.

$$

25