Coastal Waters Forecast
Issued by NWS Lake Charles, LA

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FZUS54 KLCH 040821
CWFLCH

Coastal Waters Forecast
National Weather Service Lake Charles LA
321 AM CDT Fri Apr 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.

GMZ400-042130-
321 AM CDT Fri Apr 4 2025

.SYNOPSIS...

Southeast winds of 20 to 30 knots with gusts to 36 knots and seas
of 6-11 feet will continue through Saturday. A cold front will
push through the coastal waters Saturday afternoon/night
accompanied by a squall line capable of producing severe weather
including damaging winds, large hail, waterspouts, frequent
lightning and heavy rainfall. Winds will turn offshore and relax
behind the front Saturday night and remain that way through mid
next week. Seas, particularly in 20 to 60 nm waters, will remain
in the 3 to 7 foot range through at least Monday morning.

$$

GMZ430-042130-
Sabine Lake-
321 AM CDT Fri Apr 4 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH SUNDAY MORNING...

.TODAY...Southeast winds 20 to 25 knots with gusts up to
30 knots. Lake waters very rough. Patchy fog early this morning.
.TONIGHT...Southeast winds 20 to 25 knots with gusts up to
30 knots. Lake waters very rough. Patchy fog in the evening.
.SATURDAY...South winds 20 to 25 knots with gusts up to 30 knots.
Lake waters very rough. A chance of showers and thunderstorms in
the morning, then showers and thunderstorms likely in the
afternoon.
.SATURDAY NIGHT...South winds 15 to 20 knots, becoming northwest
after midnight. Lake waters rough. Showers with thunderstorms
likely in the evening, then a chance of showers and thunderstorms
after midnight.
.SUNDAY...Northwest winds 15 to 20 knots with gusts up to
25 knots. Lake waters rough. A chance of showers in the morning.
.SUNDAY NIGHT...Northwest winds 10 to 15 knots. Lake waters
choppy.
.MONDAY...North winds 10 to 15 knots. Lake waters choppy.
.MONDAY NIGHT...North winds 5 to 10 knots. Lake waters light
chop.
.TUESDAY...Northeast winds around 5 knots, becoming southeast in
the afternoon. Lake waters smooth.
.TUESDAY NIGHT...South winds 5 to 10 knots. Lake waters light
chop.

Winds and waves higher in and near thunderstorms.

$$

GMZ432-042130-
Calcasieu Lake-
321 AM CDT Fri Apr 4 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH SUNDAY MORNING...

.TODAY...Southeast winds 20 to 25 knots with gusts up to
35 knots. Lake waters very rough. Patchy fog early this morning.
.TONIGHT...Southeast winds 20 to 25 knots with gusts up to
30 knots. Lake waters very rough.
.SATURDAY...South winds 20 to 25 knots with gusts up to 35 knots.
Lake waters very rough. A slight chance of showers and
thunderstorms in the morning, then showers likely with a chance
of thunderstorms in the afternoon.
.SATURDAY NIGHT...South winds 20 to 25 knots, becoming west 15 to
20 knots after midnight. Lake waters very rough. Thunderstorms
likely. Showers.
.SUNDAY...Northwest winds 15 to 20 knots with gusts up to
25 knots. Lake waters rough. A chance of showers with a slight
chance of thunderstorms in the morning.
.SUNDAY NIGHT...Northwest winds 15 to 20 knots. Lake waters
rough.
.MONDAY...North winds 10 to 15 knots. Lake waters choppy.
.MONDAY NIGHT...North winds 10 to 15 knots, diminishing to 5 to
10 knots after midnight. Lake waters choppy.
.TUESDAY...Northeast winds 5 to 10 knots. Lake waters light chop.
.TUESDAY NIGHT...South winds 5 to 10 knots, becoming southeast
after midnight. Lake waters light chop.

Winds and waves higher in and near thunderstorms.

$$

GMZ435-042130-
Vermilion and West Cote Blanche Bays-
321 AM CDT Fri Apr 4 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH SUNDAY MORNING...

.TODAY...Southeast winds 20 to 25 knots with gusts up to
30 knots. Bay waters very rough. Patchy fog early this morning.
.TONIGHT...Southeast winds 20 to 25 knots with gusts up to
30 knots. Bay waters very rough.
.SATURDAY...South winds 20 to 25 knots with gusts up to 30 knots.
Bay waters very rough. A slight chance of showers and
thunderstorms in the afternoon.
.SATURDAY NIGHT...South winds 15 to 20 knots with gusts up to
25 knots. Bay waters rough. A chance of thunderstorms. Showers.
.SUNDAY...Northwest winds 10 to 15 knots. Bay waters choppy.
Showers with a chance of thunderstorms in the morning, then a
chance of showers in the afternoon.
.SUNDAY NIGHT...Northwest winds 10 to 15 knots with gusts up to
20 knots. Bay waters choppy.
.MONDAY...North winds 10 to 15 knots. Bay waters choppy.
.MONDAY NIGHT...North winds 10 to 15 knots. Bay waters choppy.
.TUESDAY...North winds 5 to 10 knots. Bay waters light chop.
.TUESDAY NIGHT...North winds 5 to 10 knots, becoming northeast
after midnight. Bay waters light chop.

Winds and waves higher in and near thunderstorms.

$$

GMZ436-042130-
Atchafalaya and East Cote Blanche Bays-
321 AM CDT Fri Apr 4 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH SUNDAY MORNING...

.TODAY...Southeast winds 15 to 20 knots with gusts up to
25 knots. Bay waters rough. Patchy fog early this morning.
.TONIGHT...Southeast winds 15 to 20 knots with gusts up to
30 knots. Bay waters rough.
.SATURDAY...Southeast winds 20 to 25 knots, becoming south 15 to
20 knots in the afternoon. Bay waters very rough. A slight chance
of showers and thunderstorms in the afternoon.
.SATURDAY NIGHT...South winds 15 to 20 knots with gusts up to
25 knots. Bay waters rough. A chance of thunderstorms. A chance
of showers in the evening, then showers after midnight.
.SUNDAY...Northwest winds 10 to 15 knots. Bay waters choppy.
Showers with a chance of thunderstorms in the morning, then a
chance of showers in the afternoon.
.SUNDAY NIGHT...Northwest winds 10 to 15 knots. Bay waters
choppy. A slight chance of showers in the evening.
.MONDAY...North winds 10 to 15 knots. Bay waters choppy. A slight
chance of showers in the morning.
.MONDAY NIGHT...North winds 10 to 15 knots. Bay waters choppy.
.TUESDAY...North winds 5 to 10 knots. Bay waters light chop.
.TUESDAY NIGHT...North winds 5 to 10 knots, becoming northeast
after midnight. Bay waters light chop.

Winds and waves higher in and near thunderstorms.

$$

GMZ450-042130-
Coastal waters from Cameron LA to High Island TX out 20 NM-
321 AM CDT Fri Apr 4 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH SUNDAY MORNING...

.TODAY...Southeast winds around 25 knots with gusts up to
30 knots. Seas 5 to 7 feet, occasionally to 9 feet. Wave Detail:
Southeast 7 feet at 7 seconds. Patchy fog.
.TONIGHT...Southeast winds 20 to 25 knots with gusts up to
30 knots. Seas 5 to 7 feet, occasionally to 9 feet. Wave Detail:
Southeast 7 feet at 7 seconds. Patchy fog in the evening.
.SATURDAY...South winds 20 to 25 knots with gusts up to 30 knots.
Seas 5 to 8 feet, occasionally to 10 feet. Wave Detail: South
7 feet at 8 seconds. A chance of showers with a slight chance of
thunderstorms in the morning, then showers likely with a chance
of thunderstorms in the afternoon.
.SATURDAY NIGHT...South winds 20 to 25 knots, becoming northwest
after midnight. Seas 4 to 6 feet, occasionally to 8 feet. Wave
Detail: South 6 feet at 9 seconds and west 4 feet at 4 seconds. A
chance of thunderstorms. Showers.
.SUNDAY...Northwest winds 15 to 20 knots with gusts up to
25 knots. Seas 3 to 5 feet, occasionally to 6 feet. Wave Detail:
Northwest 4 feet at 4 seconds and south 2 feet at 9 seconds. A
chance of showers in the morning.
.SUNDAY NIGHT...Northwest winds 15 to 20 knots. Seas 2 to 4 feet.
Wave Detail: Northwest 3 feet at 4 seconds and southeast 1 foot
at 9 seconds.
.MONDAY...North winds 15 to 20 knots, diminishing to 10 to
15 knots in the afternoon. Seas 2 to 3 feet.
.MONDAY NIGHT...North winds 10 to 15 knots. Seas around 2 feet.
.TUESDAY...Northeast winds 5 to 10 knots, becoming southeast in
the afternoon. Seas around 2 feet in the morning, then 1 foot or
less.
.TUESDAY NIGHT...South winds 5 to 10 knots. Seas 1 foot or less.

Winds and seas higher in and near thunderstorms.

$$

GMZ452-042130-
Coastal waters from Intracoastal City to Cameron LA out 20 NM-
321 AM CDT Fri Apr 4 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH SUNDAY MORNING...

.TODAY...Southeast winds 20 to 25 knots with gusts up to
30 knots. Seas 5 to 7 feet, occasionally to 9 feet. Wave Detail:
South 7 feet at 8 seconds. Patchy fog.
.TONIGHT...Southeast winds 20 to 25 knots, increasing to 25 to
30 knots after midnight. Seas 5 to 7 feet, occasionally to
9 feet. Wave Detail: South 7 feet at 7 seconds. Patchy fog in the
evening.
.SATURDAY...Southeast winds 25 to 30 knots, becoming south 20 to
25 knots in the afternoon. Seas 6 to 9 feet, occasionally to
11 feet, subsiding to 5 to 7 feet, occasionally to 9 feet in the
afternoon. Wave Detail: South 8 feet at 8 seconds, becoming south
7 feet at 9 seconds. A chance of showers and thunderstorms in the
afternoon.
.SATURDAY NIGHT...South winds 20 to 25 knots, becoming southwest
after midnight. Seas 5 to 7 feet, occasionally to 9 feet. Wave
Detail: South 7 feet at 9 seconds and southwest 4 feet at
5 seconds. Showers with thunderstorms likely.
.SUNDAY...Northwest winds 20 to 25 knots with gusts up to
30 knots, diminishing to 15 to 20 knots in the afternoon. Seas
4 to 6 feet, occasionally to 8 feet. Wave Detail: Northwest
4 feet at 5 seconds and south 3 feet at 9 seconds. Showers with a
chance of thunderstorms in the morning, then a slight chance of
showers in the afternoon.
.SUNDAY NIGHT...Northwest winds 15 to 20 knots. Seas 3 to 5 feet,
occasionally to 6 feet. Wave Detail: Northwest 4 feet at
4 seconds and south 2 feet at 9 seconds.
.MONDAY...North winds 15 to 20 knots. Seas 2 to 4 feet.
.MONDAY NIGHT...North winds 10 to 15 knots. Seas 2 to 3 feet.
.TUESDAY...Northeast winds 10 to 15 knots, becoming north 5 to
10 knots in the afternoon. Seas around 2 feet.
.TUESDAY NIGHT...North winds around 10 knots, becoming east after
midnight. Seas 1 foot or less, then around 2 feet after midnight.

Winds and seas higher in and near thunderstorms.

$$

GMZ455-042130-
Coastal waters from Lower Atchafalaya River to Intracoastal City
LA out 20 NM-
321 AM CDT Fri Apr 4 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH SUNDAY MORNING...

.TODAY...Southeast winds 20 to 25 knots with gusts up to
30 knots. Seas 3 to 5 feet, occasionally to 6 feet. Wave Detail:
South 4 feet at 6 seconds. Patchy fog this morning.
.TONIGHT...Southeast winds 20 to 25 knots with gusts up to
30 knots. Seas 3 to 5 feet, occasionally to 6 feet. Wave Detail:
South 5 feet at 6 seconds. Patchy fog in the evening.
.SATURDAY...Southeast winds 20 to 25 knots with gusts up to
30 knots. Seas 4 to 6 feet, occasionally to 8 feet. Wave Detail:
South 5 feet at 8 seconds. A slight chance of showers and
thunderstorms in the afternoon.
.SATURDAY NIGHT...South winds 15 to 20 knots with gusts up to
25 knots. Seas 3 to 5 feet, occasionally to 6 feet. Wave Detail:
South 5 feet at 9 seconds. A chance of thunderstorms. A chance of
showers in the evening, then showers after midnight.
.SUNDAY...Northwest winds 10 to 15 knots. Seas 2 to 4 feet. Wave
Detail: South 3 feet at 9 seconds and west 2 feet at 3 seconds.
Showers with a chance of thunderstorms in the morning, then a
chance of showers with a slight chance of thunderstorms in the
afternoon.
.SUNDAY NIGHT...Northwest winds 10 to 15 knots, increasing to
15 to 20 knots after midnight. Seas 2 to 3 feet. Wave Detail:
Northwest 2 feet at 3 seconds and south 2 feet at 9 seconds. A
slight chance of showers and thunderstorms.
.MONDAY...North winds 15 to 20 knots. Seas 2 to 3 feet. A slight
chance of showers in the morning.
.MONDAY NIGHT...North winds 10 to 15 knots. Seas around 2 feet.
.TUESDAY...North winds 10 to 15 knots, diminishing to 5 to
10 knots in the afternoon. Seas around 2 feet.
.TUESDAY NIGHT...North winds 5 to 10 knots, becoming northeast
after midnight. Seas 1 foot or less.

Winds and seas higher in and near thunderstorms.

$$

GMZ470-042130-
Coastal waters from Cameron LA to High Island TX from 20 to 60 NM-
321 AM CDT Fri Apr 4 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH SUNDAY MORNING...

.TODAY...Southeast winds around 25 knots with gusts up to
30 knots. Seas 7 to 10 feet, occasionally to 13 feet. Wave
Detail: Southeast 9 feet at 8 seconds. Patchy fog.
.TONIGHT...Southeast winds 20 to 25 knots with gusts up to
35 knots. Seas 7 to 10 feet, occasionally to 13 feet. Wave
Detail: Southeast 10 feet at 8 seconds. Patchy fog in the
evening.
.SATURDAY...South winds 20 to 25 knots with gusts up to 35 knots.
Seas 8 to 11 feet, occasionally to 14 feet. Wave Detail:
Southeast 10 feet at 9 seconds. A slight chance of showers in the
morning, then a chance of showers and thunderstorms in the
afternoon.
.SATURDAY NIGHT...South winds 15 to 20 knots, becoming northwest
20 to 25 knots after midnight. Seas 6 to 9 feet, occasionally to
11 feet. Wave Detail: South 8 feet at 9 seconds and northwest
5 feet at 5 seconds. A chance of thunderstorms. Showers.
.SUNDAY...Northwest winds 20 to 25 knots with gusts up to
30 knots. Seas 5 to 8 feet, occasionally to 10 feet. Wave Detail:
Northwest 6 feet at 5 seconds and southeast 5 feet at 9 seconds.
Showers likely with a slight chance of thunderstorms in the
morning.
.SUNDAY NIGHT...Northwest winds around 20 knots with gusts up to
25 knots. Seas 4 to 6 feet, occasionally to 8 feet. Wave Detail:
Northwest 5 feet at 5 seconds and southeast 3 feet at 9 seconds.
.MONDAY...North winds 15 to 20 knots. Seas 3 to 5 feet,
occasionally to 6 feet.
.MONDAY NIGHT...North winds 10 to 15 knots. Seas 2 to 4 feet.
.TUESDAY...Northeast winds 10 to 15 knots, diminishing to 5 to
10 knots in the afternoon. Seas 2 to 3 feet.
.TUESDAY NIGHT...Southeast winds 5 to 10 knots. Seas around
2 feet.

Winds and seas higher in and near thunderstorms.

$$

GMZ472-042130-
Coastal waters from Intracoastal City to Cameron LA from 20 to
60 NM-
321 AM CDT Fri Apr 4 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH SUNDAY MORNING...

.TODAY...Southeast winds 20 to 25 knots with gusts up to
30 knots. Seas 8 to 10 feet, occasionally to 13 feet. Wave
Detail: Southeast 9 feet at 8 seconds. Patchy fog.
.TONIGHT...Southeast winds 20 to 25 knots, increasing to 25 to
30 knots after midnight. Seas 8 to 9 feet, occasionally to
11 feet, building to 8 to 11 feet, occasionally to 14 feet after
midnight. Wave Detail: Southeast 9 feet at 9 seconds, becoming
southeast 10 feet at 8 seconds. Patchy fog in the evening.
.SATURDAY...Southeast winds 25 to 30 knots, becoming south 20 to
25 knots in the afternoon. Seas 8 to 11 feet, occasionally to
14 feet. Wave Detail: Southeast 11 feet at 9 seconds. A slight
chance of showers and thunderstorms in the afternoon.
.SATURDAY NIGHT...South winds 20 to 25 knots, becoming southwest
after midnight. Seas 7 to 10 feet, occasionally to 13 feet,
subsiding to 6 to 8 feet, occasionally to 10 feet after midnight.
Wave Detail: South 9 feet at 9 seconds, becoming south 8 feet at
9 seconds. Showers with a chance of thunderstorms.
.SUNDAY...Northwest winds 20 to 25 knots with gusts up to
30 knots, diminishing to 15 to 20 knots in the afternoon. Seas
5 to 7 feet, occasionally to 9 feet. Wave Detail: Southeast
6 feet at 9 seconds and northwest 5 feet at 6 seconds. Showers
with a chance of thunderstorms in the morning, then a chance of
showers in the afternoon.
.SUNDAY NIGHT...Northwest winds 15 to 20 knots with gusts up to
25 knots. Seas 5 to 7 feet, occasionally to 9 feet. Wave Detail:
Northwest 5 feet at 6 seconds and southeast 5 feet at 9 seconds.
A slight chance of showers.
.MONDAY...North winds 15 to 20 knots. Seas 4 to 6 feet,
occasionally to 8 feet. A slight chance of showers in the
morning.
.MONDAY NIGHT...North winds around 15 knots. Seas 3 to 5 feet,
occasionally to 6 feet.
.TUESDAY...Northeast winds 10 to 15 knots, diminishing to 5 to
10 knots in the afternoon. Seas 2 to 4 feet.
.TUESDAY NIGHT...Northeast winds 5 to 10 knots, becoming east
after midnight. Seas around 2 feet.

Winds and seas higher in and near thunderstorms.

$$

GMZ475-042130-
Coastal waters from Lower Atchafalaya River to Intracoastal City
LA from 20 to 60 NM-
321 AM CDT Fri Apr 4 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH SUNDAY MORNING...

.TODAY...Southeast winds 20 to 25 knots with gusts up to
30 knots. Seas 7 to 10 feet, occasionally to 13 feet. Wave
Detail: Southeast 10 feet at 8 seconds. Patchy fog this morning.
.TONIGHT...Southeast winds 20 to 25 knots, increasing to 25 to
30 knots after midnight. Seas 7 to 9 feet, occasionally to
11 feet, building to 8 to 11 feet, occasionally to 14 feet after
midnight. Wave Detail: Southeast 9 feet at 9 seconds, becoming
southeast 11 feet at 8 seconds. Patchy fog in the evening.
.SATURDAY...South winds 25 to 30 knots. Seas 9 to 12 feet,
occasionally to 15 feet. Wave Detail: Southeast 12 feet at
9 seconds.
.SATURDAY NIGHT...South winds 20 to 25 knots, diminishing to
15 to 20 knots after midnight. Seas 7 to 10 feet, occasionally to
13 feet. Wave Detail: South 10 feet at 9 seconds. A chance of
thunderstorms. A chance of showers in the evening, then showers
after midnight.
.SUNDAY...Northwest winds 15 to 20 knots with gusts up to
25 knots. Seas 5 to 8 feet, occasionally to 10 feet. Wave Detail:
South 7 feet at 8 seconds and northwest 4 feet at 7 seconds.
Showers with a chance of thunderstorms in the morning, then a
chance of showers with a slight chance of thunderstorms in the
afternoon.
.SUNDAY NIGHT...Northwest winds 15 to 20 knots with gusts up to
25 knots. Seas 5 to 8 feet, occasionally to 10 feet. Wave Detail:
Northwest 6 feet at 6 seconds and southeast 6 feet at 9 seconds.
A chance of showers with a slight chance of thunderstorms.
.MONDAY...North winds 20 to 25 knots, diminishing to 15 to
20 knots in the afternoon. Seas 5 to 7 feet, occasionally to
9 feet. A chance of showers in the morning.
.MONDAY NIGHT...North winds 15 to 20 knots. Seas 4 to 6 feet,
occasionally to 8 feet.
.TUESDAY...North winds 15 to 20 knots, diminishing to 10 to
15 knots in the afternoon. Seas 3 to 5 feet, occasionally to
6 feet.
.TUESDAY NIGHT...Northeast winds around 10 knots. Seas 2 to
3 feet.

Winds and seas higher in and near thunderstorms.

$$