098
FZUS54 KLCH 211733
CWFLCH

Coastal Waters Forecast
National Weather Service Lake Charles LA
1132 AM CST Fri Nov 21 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.

GMZ400-220600-
1132 AM CST Fri Nov 21 2025

.Synopsis for Lower Atchafalaya River LA to High Island TX out
60 NM including Sabine and Calcasieu Lakes and Vermilion and Cote
Blanche Bays...

ASCAT shows a large swath of onshore 15-knot winds in the outer
coastal waters, with 20-knot winds farther out in the Gulf. The
altimeter shows wave heights a foot higher than guidance, so we
bumped up our seas to be between 2 and 4 feet.

Tonight, a weak front will move offshore, causing winds to become
E-NE for Saturday. This front will quickly fade away, and onshore
flow will return by Sunday night. Going into Monday, another front
will approach the region, and winds may increase above 20 knots
with the front. Rain chances remain near zero until Monday.

$$

GMZ430-220600-
Sabine Lake-
1132 AM CST Fri Nov 21 2025

.TONIGHT...Southwest winds 5 to 10 knots, becoming west late.
Lake waters light chop. A slight chance of showers and
thunderstorms after midnight. Patchy fog after midnight.
.SATURDAY...Northwest winds around 5 knots. Lake waters smooth. A
slight chance of showers in the morning. Areas of fog in the
morning.
.SATURDAY NIGHT...North winds 5 to 10 knots. Lake waters light
chop.
.SUNDAY...Northeast winds 5 to 10 knots, becoming east in the
afternoon. Lake waters light chop.
.SUNDAY NIGHT...Southeast winds 5 to 10 knots. Lake waters light
chop.
.MONDAY...Southeast winds 10 to 15 knots, becoming south 15 to
20 knots in the afternoon. Lake waters rough. A slight chance of
thunderstorms. A slight chance of showers in the morning, then a
chance of showers in the afternoon.
.MONDAY NIGHT...South winds 10 to 15 knots. Lake waters choppy. A
chance of showers with a slight chance of thunderstorms in the
evening, then showers likely with a chance of thunderstorms after
midnight.
.TUESDAY...Southwest winds 5 to 10 knots. Lake waters light chop.
A chance of showers and thunderstorms, mainly in the morning.
.TUESDAY NIGHT...Northwest winds around 5 knots, becoming north
10 to 15 knots after midnight. Lake waters choppy. A slight
chance of showers and thunderstorms after midnight.
.WEDNESDAY...North winds 10 to 15 knots. Lake waters choppy. A
slight chance of showers and thunderstorms.
.WEDNESDAY NIGHT...North winds 15 to 20 knots. Lake waters rough.

Winds and waves higher in and near thunderstorms.

$$

GMZ432-220600-
Calcasieu Lake-
1132 AM CST Fri Nov 21 2025

.TONIGHT...Southwest winds 5 to 10 knots, becoming west late.
Lake waters light chop. Patchy fog after midnight. Areas of dense
fog late. A chance of showers with a slight chance of
thunderstorms late.
.SATURDAY...Northwest winds around 5 knots. Lake waters smooth. A
slight chance of showers and thunderstorms in the morning. Areas
of dense fog in the morning.
.SATURDAY NIGHT...North winds 5 to 10 knots. Lake waters light
chop.
.SUNDAY...Northeast winds 5 to 10 knots, becoming east in the
afternoon. Lake waters light chop.
.SUNDAY NIGHT...Southeast winds 5 to 10 knots. Lake waters light
chop.
.MONDAY...Southeast winds 10 to 15 knots, becoming south 15 to
20 knots in the afternoon. Lake waters rough. A slight chance of
showers in the morning, then a chance of showers with a slight
chance of thunderstorms in the afternoon.
.MONDAY NIGHT...South winds 15 to 20 knots, becoming southwest
10 to 15 knots after midnight. Lake waters rough. A chance of
showers with a slight chance of thunderstorms in the evening,
then showers likely with a chance of thunderstorms after
midnight.
.TUESDAY...Southwest winds 5 to 10 knots. Lake waters light chop.
A chance of showers. A chance of thunderstorms, mainly in the
morning.
.TUESDAY NIGHT...Northwest winds around 5 knots, becoming north
10 to 15 knots after midnight. Lake waters choppy. A slight
chance of showers and thunderstorms after midnight.
.WEDNESDAY...North winds 10 to 15 knots, increasing to 15 to
20 knots in the afternoon. Lake waters rough. A slight chance of
showers and thunderstorms.
.WEDNESDAY NIGHT...North winds 15 to 20 knots. Lake waters rough.

Winds and waves higher in and near thunderstorms.

$$

GMZ435-220600-
Vermilion and West Cote Blanche Bays-
1132 AM CST Fri Nov 21 2025

.TONIGHT...Southwest winds around 5 knots. Bay waters smooth.
Patchy fog this evening, then areas of dense fog after midnight.
Widespread dense fog late. A slight chance of showers late.
.SATURDAY...West winds around 5 knots. Bay waters smooth. Areas
of dense fog in the morning. A slight chance of showers. A slight
chance of thunderstorms in the afternoon.
.SATURDAY NIGHT...Northwest winds 5 to 10 knots. Bay waters light
chop.
.SUNDAY...Northeast winds 5 to 10 knots, becoming east in the
afternoon. Bay waters light chop.
.SUNDAY NIGHT...Southeast winds around 5 knots, increasing to
5 to 10 knots after midnight. Bay waters light chop.
.MONDAY...Southeast winds 10 to 15 knots with gusts up to
20 knots. Bay waters choppy. A slight chance of showers in the
afternoon.
.MONDAY NIGHT...South winds 10 to 15 knots. Bay waters choppy. A
chance of showers.
.TUESDAY...Southwest winds 10 to 15 knots. Bay waters choppy. A
chance of showers. A slight chance of thunderstorms in the
afternoon.
.TUESDAY NIGHT...Southwest winds around 5 knots, becoming
northwest after midnight. Bay waters light chop. A slight chance
of showers in the evening, then a chance of showers with a slight
chance of thunderstorms after midnight.
.WEDNESDAY...North winds 10 to 15 knots, increasing to 15 to
20 knots in the afternoon. Bay waters rough. A slight chance of
thunderstorms. A chance of showers, mainly in the morning.
.WEDNESDAY NIGHT...North winds 15 to 20 knots. Bay waters rough.

Winds and waves higher in and near thunderstorms.

$$

GMZ436-220600-
Atchafalaya and East Cote Blanche Bays-
1132 AM CST Fri Nov 21 2025

.TONIGHT...Southwest winds around 5 knots. Bay waters smooth.
Areas of dense fog until early morning. Widespread dense fog
late.
.SATURDAY...West winds around 5 knots. Bay waters smooth. Areas
of dense fog in the morning. A slight chance of showers in the
afternoon.
.SATURDAY NIGHT...West winds around 5 knots, becoming north after
midnight. Bay waters smooth.
.SUNDAY...Northeast winds 5 to 10 knots, becoming southeast in
the afternoon. Bay waters light chop.
.SUNDAY NIGHT...Southeast winds around 5 knots, becoming east
after midnight. Bay waters light chop.
.MONDAY...Southeast winds 5 to 10 knots, increasing to 10 to
15 knots in the afternoon. Bay waters choppy. A slight chance of
showers in the afternoon.
.MONDAY NIGHT...South winds 5 to 10 knots. Bay waters light chop.
A chance of showers.
.TUESDAY...Southwest winds 5 to 10 knots. Bay waters light chop.
A chance of showers.
.TUESDAY NIGHT...Southwest winds around 5 knots, becoming
northwest after midnight. Bay waters light chop. A slight chance
of showers in the evening, then a chance of showers with a slight
chance of thunderstorms after midnight.
.WEDNESDAY...North winds 10 to 15 knots. Bay waters choppy. A
slight chance of thunderstorms. A chance of showers, mainly in
the morning.
.WEDNESDAY NIGHT...North winds 10 to 15 knots, increasing to
15 to 20 knots after midnight. Bay waters rough. A slight chance
of showers and thunderstorms in the evening.

Winds and waves higher in and near thunderstorms.

$$

GMZ450-220600-
Coastal waters from Cameron LA to High Island TX out 20 NM-
1132 AM CST Fri Nov 21 2025

.TONIGHT...Southwest winds 5 to 10 knots. Seas around 2 feet.
Wave Detail: South 1 foot at 6 seconds. A slight chance of
showers and thunderstorms after midnight. A chance of showers
with a slight chance of thunderstorms late. Patchy fog after
midnight.
.SATURDAY...Northwest winds 5 to 10 knots. Seas around 2 feet.
Wave Detail: South 1 foot at 6 seconds. A slight chance of
showers in the morning. Patchy fog in the morning.
.SATURDAY NIGHT...North winds 5 to 10 knots, becoming northeast
10 to 15 knots after midnight. Seas around 2 feet. Wave Detail:
Southeast 2 feet at 6 seconds.
.SUNDAY...East winds 10 to 15 knots. Seas around 2 feet. Wave
Detail: East 2 feet at 4 seconds and south 1 foot at 4 seconds.
.SUNDAY NIGHT...Southeast winds 10 to 15 knots. Seas 2 to 3 feet.
Wave Detail: Southeast 3 feet at 5 seconds. A slight chance of
showers after midnight.
.MONDAY...South winds around 15 knots with gusts up to 20 knots.
Seas 2 to 3 feet. Wave Detail: South 3 feet at 4 seconds. A
slight chance of showers in the morning, then a chance of showers
in the afternoon.
.MONDAY NIGHT...South winds 15 to 20 knots, becoming southwest
10 to 15 knots after midnight. Seas 3 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.
.TUESDAY...Southwest winds 10 to 15 knots, diminishing to 5 to
10 knots in the afternoon. Seas 2 to 3 feet. A slight chance of
thunderstorms. A chance of showers, mainly in the morning.
.TUESDAY NIGHT...West winds 5 to 10 knots, becoming north 10 to
15 knots after midnight. Seas around 2 feet. A slight chance of
showers and thunderstorms in the evening, then a chance of
showers and thunderstorms after midnight.
.WEDNESDAY...North winds 15 to 20 knots. Seas around 2 feet. A
slight chance of showers and thunderstorms.
.WEDNESDAY NIGHT...Northeast winds 20 to 25 knots. Seas 2 to
3 feet.

Winds and seas higher in and near thunderstorms.

$$

GMZ452-220600-
Coastal waters from Intracoastal City to Cameron LA out 20 NM-
1132 AM CST Fri Nov 21 2025

.TONIGHT...Southwest winds 5 to 10 knots. Seas around 2 feet.
Wave Detail: South 2 feet at 5 seconds. Patchy fog after
midnight. A slight chance of showers and thunderstorms late.
.SATURDAY...West winds 5 to 10 knots. Seas around 2 feet. Wave
Detail: South 1 foot at 6 seconds. A slight chance of showers in
the morning. Patchy fog in the morning.
.SATURDAY NIGHT...Northwest winds 5 to 10 knots, becoming north
after midnight. Seas around 2 feet. Wave Detail: South 1 foot at
6 seconds.
.SUNDAY...East winds 5 to 10 knots. Seas around 2 feet. Wave
Detail: Northeast 2 feet at 4 seconds and southwest 1 foot at
4 seconds.
.SUNDAY NIGHT...Southeast winds 5 to 10 knots, increasing to
10 to 15 knots after midnight. Seas 2 to 3 feet. Wave Detail:
Southeast 2 feet at 3 seconds and southeast 1 foot at 6 seconds.
.MONDAY...Southeast winds 10 to 15 knots with gusts up to
20 knots. Seas 2 to 3 feet. Wave Detail: Southeast 3 feet at
4 seconds. A slight chance of showers in the morning, then a
chance of showers in the afternoon.
.MONDAY NIGHT...South winds around 15 knots with gusts up to
20 knots. Seas 2 to 4 feet. A chance of showers in the evening,
then showers likely with a chance of thunderstorms after
midnight.
.TUESDAY...Southwest winds 10 to 15 knots, diminishing to 5 to
10 knots in the afternoon. Seas 2 to 4 feet. A chance of showers
with a slight chance of thunderstorms.
.TUESDAY NIGHT...West winds 5 to 10 knots, becoming north 10 to
15 knots after midnight. Seas around 2 feet. A slight chance of
showers and thunderstorms in the evening, then a chance of
showers and thunderstorms after midnight.
.WEDNESDAY...North winds 15 to 20 knots, increasing to 20 to
25 knots in the afternoon. Seas around 2 feet. A slight chance of
thunderstorms. A chance of showers, mainly in the morning.
.WEDNESDAY NIGHT...North winds 20 to 25 knots. Seas 2 to 3 feet.
A slight chance of showers and thunderstorms in the evening.

Winds and seas higher in and near thunderstorms.

$$

GMZ455-220600-
Coastal waters from Lower Atchafalaya River to Intracoastal City
LA out 20 NM-
1132 AM CST Fri Nov 21 2025

.TONIGHT...Southwest winds around 5 knots. Seas 1 to 2 feet this
evening, then 1 foot or less. Wave Detail: South 1 foot at
5 seconds. Areas of dense fog.
.SATURDAY...West winds around 5 knots. Seas 1 foot or less. Areas
of dense fog in the morning. Patchy dense fog in the afternoon.
.SATURDAY NIGHT...Northwest winds around 5 knots, becoming north
after midnight. Seas 1 foot or less. Wave Detail: Southwest
1 foot at 3 seconds.
.SUNDAY...Northeast winds 5 to 10 knots, becoming east in the
afternoon. Seas 1 foot or less. Wave Detail: Northeast 1 foot at
2 seconds and southwest 1 foot at 3 seconds.
.SUNDAY NIGHT...Southeast winds 5 to 10 knots. Seas 1 foot or
less, then around 2 feet after midnight. Wave Detail: Southeast
1 foot at 2 seconds, becoming southeast 1 foot at 3 seconds.
.MONDAY...Southeast winds 10 to 15 knots. Seas around 2 feet.
Wave Detail: Southeast 2 feet at 3 seconds. A slight chance of
showers in the afternoon.
.MONDAY NIGHT...South winds 10 to 15 knots. Seas 2 to 3 feet. A
chance of showers.
.TUESDAY...Southwest winds 5 to 10 knots. Seas 2 to 3 feet. A
chance of showers.
.TUESDAY NIGHT...Southwest winds around 5 knots, becoming
northwest after midnight. Seas around 2 feet. A slight chance of
showers in the evening, then a chance of showers with a slight
chance of thunderstorms after midnight.
.WEDNESDAY...North winds 10 to 15 knots. Seas around 2 feet. A
slight chance of thunderstorms. A chance of showers, mainly in
the morning.
.WEDNESDAY NIGHT...North winds 15 to 20 knots. Seas around
2 feet. A slight chance of showers and thunderstorms.

Winds and seas higher in and near thunderstorms.

$$

GMZ470-220600-
Coastal waters from Cameron LA to High Island TX from 20 to 60 NM-
1132 AM CST Fri Nov 21 2025

.TONIGHT...South winds 5 to 10 knots, becoming southwest late.
Seas 2 to 3 feet. Wave Detail: South 2 feet at 6 seconds. Patchy
fog after midnight. A slight chance of showers and thunderstorms
late.
.SATURDAY...Northwest winds around 5 knots. Seas 2 to 3 feet.
Wave Detail: South 2 feet at 6 seconds. A slight chance of
showers in the morning. Patchy fog in the morning.
.SATURDAY NIGHT...North winds 5 to 10 knots, becoming northeast
10 to 15 knots after midnight. Seas around 2 feet. Wave Detail:
South 2 feet at 6 seconds.
.SUNDAY...East winds around 10 knots. Seas around 2 feet. Wave
Detail: East 2 feet at 5 seconds and southwest 1 foot at
5 seconds.
.SUNDAY NIGHT...Southeast winds 10 to 15 knots. Seas 2 to 3 feet.
Wave Detail: South 3 feet at 6 seconds. A slight chance of
showers after midnight.
.MONDAY...South winds around 15 knots with gusts up to 20 knots.
Seas 3 to 4 feet. Wave Detail: South 4 feet at 6 seconds. A
slight chance of showers in the morning, then a chance of showers
in the afternoon.
.MONDAY NIGHT...South winds around 15 knots with gusts up to
20 knots. Seas 3 to 4 feet. A chance of showers in the evening,
then showers likely with a chance of thunderstorms after
midnight.
.TUESDAY...Southwest winds 10 to 15 knots, diminishing to 5 to
10 knots in the afternoon. Seas 2 to 4 feet. A chance of showers
with a slight chance of thunderstorms.
.TUESDAY NIGHT...West winds 5 to 10 knots, becoming northeast
10 to 15 knots after midnight. Seas 2 to 3 feet. A slight chance
of showers and thunderstorms in the evening, then a chance of
showers and thunderstorms after midnight.
.WEDNESDAY...North winds 15 to 20 knots. Seas 2 to 3 feet. A
chance of showers and thunderstorms, mainly in the morning.
.WEDNESDAY NIGHT...Northeast winds 20 to 25 knots. Seas 3 to
4 feet. A slight chance of showers and thunderstorms.

Winds and seas higher in and near thunderstorms.

$$

GMZ472-220600-
Coastal waters from Intracoastal City to Cameron LA from 20 to
60 NM-
1132 AM CST Fri Nov 21 2025

.TONIGHT...Southwest winds 5 to 10 knots. Seas 2 to 3 feet. Wave
Detail: Southeast 3 feet at 7 seconds and southwest 1 foot at
4 seconds. Patchy fog after midnight.
.SATURDAY...Northwest winds around 5 knots. Seas 2 to 3 feet.
Wave Detail: South 2 feet at 6 seconds. A slight chance of
showers in the morning. Patchy fog in the morning.
.SATURDAY NIGHT...Northwest winds 5 to 10 knots, becoming north
after midnight. Seas around 2 feet. Wave Detail: South 2 feet at
6 seconds.
.SUNDAY...East winds around 10 knots. Seas around 2 feet. Wave
Detail: Northeast 2 feet at 5 seconds and southwest 1 foot at
5 seconds.
.SUNDAY NIGHT...Southeast winds 10 to 15 knots. Seas 2 to 3 feet.
Wave Detail: Southeast 3 feet at 5 seconds.
.MONDAY...South winds 10 to 15 knots with gusts up to 20 knots.
Seas 3 to 4 feet. Wave Detail: Southeast 4 feet at 5 seconds. A
slight chance of showers in the morning, then a chance of showers
in the afternoon.
.MONDAY NIGHT...South winds around 15 knots with gusts up to
20 knots. Seas around 4 feet. A chance of showers. A slight
chance of thunderstorms after midnight.
.TUESDAY...Southwest winds 10 to 15 knots, diminishing to 5 to
10 knots in the afternoon. Seas 3 to 4 feet. A chance of showers
with a slight chance of thunderstorms.
.TUESDAY NIGHT...Southwest winds 5 to 10 knots, becoming north
10 to 15 knots after midnight. Seas 2 to 3 feet. A slight chance
of thunderstorms. A slight chance of showers in the evening, then
a chance of showers after midnight.
.WEDNESDAY...North winds 15 to 20 knots. Seas 2 to 3 feet. A
chance of showers and thunderstorms.
.WEDNESDAY NIGHT...Northeast winds 20 to 25 knots. Seas 3 to
4 feet. A slight chance of showers and thunderstorms.

Winds and seas higher in and near thunderstorms.

$$

GMZ475-220600-
Coastal waters from Lower Atchafalaya River to Intracoastal City
LA from 20 to 60 NM-
1132 AM CST Fri Nov 21 2025

.TONIGHT...Southwest winds around 5 knots. Seas 2 to 3 feet. Wave
Detail: South 3 feet at 5 seconds. Patchy fog late.
.SATURDAY...Northwest winds around 5 knots. Seas 2 to 3 feet.
Wave Detail: South 2 feet at 6 seconds. Patchy dense fog.
.SATURDAY NIGHT...Northwest winds 5 to 10 knots. Seas around
2 feet. Wave Detail: South 2 feet at 6 seconds.
.SUNDAY...Northeast winds 5 to 10 knots. Seas around 2 feet. Wave
Detail: Northeast 2 feet at 6 seconds and southwest 1 foot at
5 seconds.
.SUNDAY NIGHT...East winds 5 to 10 knots, becoming southeast
10 to 15 knots after midnight. Seas 2 to 3 feet. Wave Detail:
South 3 feet at 5 seconds.
.MONDAY...Southeast winds 10 to 15 knots. Seas 2 to 4 feet. Wave
Detail: Southeast 4 feet at 5 seconds. A slight chance of showers
in the afternoon.
.MONDAY NIGHT...South winds 10 to 15 knots, increasing to 15 to
20 knots after midnight. Seas 3 to 5 feet, occasionally to
6 feet. A chance of showers.
.TUESDAY...Southwest winds 10 to 15 knots. Seas 3 to 4 feet. A
chance of showers.
.TUESDAY NIGHT...Southwest winds around 5 knots, becoming
northwest after midnight. Seas 2 to 3 feet. A slight chance of
showers in the evening, then a chance of showers with a slight
chance of thunderstorms after midnight.
.WEDNESDAY...North winds 15 to 20 knots. Seas 2 to 3 feet. A
chance of showers. A slight chance of thunderstorms in the
morning, then a chance of thunderstorms in the afternoon.
.WEDNESDAY NIGHT...North winds 20 to 25 knots. Seas 3 to 4 feet.
A chance of showers and thunderstorms, mainly in the evening.

Winds and seas higher in and near thunderstorms.

$$