569
FZUS54 KLCH 152127
CWFLCH

Coastal Waters Forecast
National Weather Service Lake Charles LA
327 PM CST Mon Dec 15 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.

GMZ400-161015-
327 PM CST Mon Dec 15 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...

High pressure will move east of the region Tuesday and an onshore
flow will resume. The next disturbance starts taking shape on
Wednesday. Southeast winds will increase Thursday before another
cool front with strong offshore flow moves into Gulf waters on
Friday.

Higher dewpoints are anticipated this weekend with sea fog
becoming possible for multiple days.

$$

GMZ430-161015-
Sabine Lake-
327 PM CST Mon Dec 15 2025

.TONIGHT...East winds around 5 knots. Lake waters smooth.
.TUESDAY...East winds 5 to 10 knots. Lake waters light chop.
.TUESDAY NIGHT...East winds 5 to 10 knots. Lake waters light
chop. A slight chance of showers after midnight.
.WEDNESDAY...Southeast winds 5 to 10 knots. Lake waters light
chop. A chance of showers in the morning.
.WEDNESDAY NIGHT...Southeast winds 5 to 10 knots. Lake waters
light chop.
.THURSDAY...Southwest winds 5 to 10 knots. Lake waters light
chop. A slight chance of showers and thunderstorms in the
afternoon.
.THURSDAY NIGHT...North winds 10 to 15 knots. Lake waters choppy.
.FRIDAY...Northeast winds 5 to 10 knots. Lake waters light chop.
.FRIDAY NIGHT...Southeast winds 5 to 10 knots. Lake waters light
chop.
.SATURDAY...South winds 5 to 10 knots, increasing to 10 to
15 knots in the afternoon. Lake waters choppy.
.SATURDAY NIGHT...South winds 5 to 10 knots. Lake waters light
chop.

Winds and waves higher in and near thunderstorms.

$$

GMZ432-161015-
Calcasieu Lake-
327 PM CST Mon Dec 15 2025

.TONIGHT...East winds around 5 knots. Lake waters smooth.
.TUESDAY...East winds 5 to 10 knots. Lake waters light chop.
.TUESDAY NIGHT...East winds 5 to 10 knots. Lake waters light
chop. A slight chance of showers after midnight.
.WEDNESDAY...Southeast winds 5 to 10 knots. Lake waters light
chop. A chance of showers, mainly in the morning.
.WEDNESDAY NIGHT...Southeast winds 5 to 10 knots. Lake waters
light chop.
.THURSDAY...Southwest winds 5 to 10 knots. Lake waters light
chop. A slight chance of showers and thunderstorms in the
afternoon.
.THURSDAY NIGHT...Northwest winds 10 to 15 knots, becoming north
after midnight. Lake waters choppy.
.FRIDAY...Northeast winds 10 to 15 knots, becoming east 5 to
10 knots in the afternoon. Lake waters choppy.
.FRIDAY NIGHT...Southeast winds 5 to 10 knots. Lake waters light
chop.
.SATURDAY...South winds 10 to 15 knots. Lake waters choppy.
.SATURDAY NIGHT...South winds 10 to 15 knots, diminishing to 5 to
10 knots after midnight. Lake waters choppy.

Winds and waves higher in and near thunderstorms.

$$

GMZ435-161015-
Vermilion and West Cote Blanche Bays-
327 PM CST Mon Dec 15 2025

.TONIGHT...East winds around 5 knots. Bay waters smooth.
.TUESDAY...East winds around 5 knots. Bay waters smooth.
.TUESDAY NIGHT...East winds 5 to 10 knots. Bay waters light chop.
.WEDNESDAY...East winds 5 to 10 knots. Bay waters light chop. A
slight chance of showers in the morning, then a chance of showers
in the afternoon.
.WEDNESDAY NIGHT...Southeast winds 5 to 10 knots. Bay waters
light chop. A slight chance of showers.
.THURSDAY...South winds 5 to 10 knots, becoming southwest in the
afternoon. Bay waters light chop. A slight chance of showers in
the morning, then a chance of showers with a slight chance of
thunderstorms in the afternoon.
.THURSDAY NIGHT...Northwest winds 5 to 10 knots, becoming north
10 to 15 knots after midnight. Bay waters choppy. A slight chance
of showers in the evening.
.FRIDAY...Northeast winds 10 to 15 knots, diminishing to 5 to
10 knots in the afternoon. Bay waters choppy.
.FRIDAY NIGHT...East winds 5 to 10 knots. Bay waters light chop.
.SATURDAY...Southeast winds 5 to 10 knots. Bay waters light chop.
.SATURDAY NIGHT...South winds 5 to 10 knots. Bay waters light
chop.

Winds and waves higher in and near thunderstorms.

$$

GMZ436-161015-
Atchafalaya and East Cote Blanche Bays-
327 PM CST Mon Dec 15 2025

.TONIGHT...East winds around 5 knots. Bay waters smooth.
.TUESDAY...East winds around 5 knots. Bay waters smooth.
.TUESDAY NIGHT...East winds around 5 knots. Bay waters smooth.
.WEDNESDAY...East winds 5 to 10 knots. Bay waters light chop. A
slight chance of showers.
.WEDNESDAY NIGHT...Southeast winds around 5 knots. Bay waters
smooth. A chance of showers. A slight chance of thunderstorms
after midnight.
.THURSDAY...South winds 5 to 10 knots, becoming southwest in the
afternoon. Bay waters light chop. A chance of showers with a
slight chance of thunderstorms.
.THURSDAY NIGHT...West winds around 5 knots, becoming north after
midnight. Bay waters light chop. A slight chance of showers in
the evening.
.FRIDAY...Northeast winds 5 to 10 knots. Bay waters light chop.
.FRIDAY NIGHT...East winds 5 to 10 knots. Bay waters light chop.
.SATURDAY...Southeast winds 5 to 10 knots. Bay waters light chop.
.SATURDAY NIGHT...South winds 5 to 10 knots. Bay waters light
chop.

Winds and waves higher in and near thunderstorms.

$$

GMZ450-161015-
Coastal waters from Cameron LA to High Island TX out 20 NM-
327 PM CST Mon Dec 15 2025

.TONIGHT...East winds 5 to 10 knots. Seas 1 foot or less. Wave
Detail: East 1 foot at 3 seconds.
.TUESDAY...East winds 5 to 10 knots. Seas 1 foot or less, then
around 2 feet in the afternoon. Wave Detail: East 1 foot at
3 seconds, becoming southeast 2 feet at 3 seconds.
.TUESDAY NIGHT...East winds 10 to 15 knots. Seas around 2 feet.
Wave Detail: Southeast 2 feet at 4 seconds. A slight chance of
showers and thunderstorms after midnight.
.WEDNESDAY...East winds around 10 knots. Seas around 2 feet. Wave
Detail: Southeast 2 feet at 4 seconds. A chance of showers with a
slight chance of thunderstorms in the morning, then a slight
chance of showers in the afternoon.
.WEDNESDAY NIGHT...Southeast winds 10 to 15 knots. Seas around
2 feet. Wave Detail: Southeast 2 feet at 4 seconds. A slight
chance of showers in the evening.
.THURSDAY...Southwest winds 5 to 10 knots. Seas around 2 feet.
Wave Detail: South 2 feet at 4 seconds. A slight chance of
showers and thunderstorms in the afternoon.
.THURSDAY NIGHT...Northwest winds 10 to 15 knots, becoming
northeast after midnight. Seas 2 to 3 feet. A slight chance of
showers in the evening.
.FRIDAY...Northeast winds 10 to 15 knots. Seas 2 to 3 feet.
.FRIDAY NIGHT...Southeast winds around 10 knots. Seas around
2 feet.
.SATURDAY...South winds around 10 knots. Seas around 2 feet.
.SATURDAY NIGHT...South winds 10 to 15 knots. Seas around 2 feet.

Winds and seas higher in and near thunderstorms.

$$

GMZ452-161015-
Coastal waters from Intracoastal City to Cameron LA out 20 NM-
327 PM CST Mon Dec 15 2025

.TONIGHT...East winds 5 to 10 knots. Seas 1 foot or less. Wave
Detail: East 1 foot at 3 seconds.
.TUESDAY...East winds 5 to 10 knots. Seas 1 foot or less, then
around 2 feet in the afternoon. Wave Detail: Southeast 1 foot at
3 seconds, becoming southeast 2 feet at 3 seconds.
.TUESDAY NIGHT...East winds 10 to 15 knots. Seas around 2 feet.
Wave Detail: Southeast 2 feet at 4 seconds. A slight chance of
showers after midnight.
.WEDNESDAY...East winds around 10 knots. Seas around 2 feet. Wave
Detail: East 2 feet at 4 seconds. A chance of showers.
.WEDNESDAY NIGHT...Southeast winds 10 to 15 knots. Seas around
2 feet. Wave Detail: Southeast 2 feet at 4 seconds. A slight
chance of showers. A slight chance of thunderstorms after
midnight.
.THURSDAY...Southwest winds 5 to 10 knots. Seas around 2 feet.
Wave Detail: South 2 feet at 4 seconds. A slight chance of
showers. A slight chance of thunderstorms in the afternoon.
.THURSDAY NIGHT...Northwest winds 10 to 15 knots, becoming north
15 to 20 knots after midnight. Seas 2 to 3 feet. A slight chance
of showers in the evening.
.FRIDAY...Northeast winds 10 to 15 knots. Seas 2 to 3 feet.
.FRIDAY NIGHT...Southeast winds around 10 knots. Seas around
2 feet.
.SATURDAY...South winds around 10 knots. Seas around 2 feet.
.SATURDAY NIGHT...South winds around 10 knots. Seas around
2 feet.

Winds and seas higher in and near thunderstorms.

$$

GMZ455-161015-
Coastal waters from Lower Atchafalaya River to Intracoastal City
LA out 20 NM-
327 PM CST Mon Dec 15 2025

.TONIGHT...East winds 5 to 10 knots. Seas 1 foot or less. Wave
Detail: East 1 foot at 2 seconds.
.TUESDAY...East winds 5 to 10 knots. Seas 1 foot or less. Wave
Detail: East 1 foot at 3 seconds.
.TUESDAY NIGHT...East winds 5 to 10 knots. Seas around 2 feet.
Wave Detail: Southeast 1 foot at 3 seconds.
.WEDNESDAY...East winds 5 to 10 knots. Seas around 2 feet. Wave
Detail: East 1 foot at 3 seconds. A slight chance of showers in
the morning, then a chance of showers in the afternoon.
.WEDNESDAY NIGHT...Southeast winds 5 to 10 knots. Seas around
2 feet. Wave Detail: Southeast 1 foot at 3 seconds. A chance of
showers. A slight chance of thunderstorms after midnight.
.THURSDAY...South winds 5 to 10 knots, becoming southwest in the
afternoon. Seas around 2 feet. Wave Detail: South 1 foot at
3 seconds. A chance of showers with a slight chance of
thunderstorms.
.THURSDAY NIGHT...Northwest winds 5 to 10 knots, becoming north
10 to 15 knots after midnight. Seas around 2 feet. A chance of
showers with a slight chance of thunderstorms in the evening.
.FRIDAY...Northeast winds 10 to 15 knots, diminishing to 5 to
10 knots in the afternoon. Seas 1 to 2 feet.
.FRIDAY NIGHT...East winds 5 to 10 knots. Seas 1 foot or less.
.SATURDAY...Southeast winds 5 to 10 knots. Seas 1 foot or less.
.SATURDAY NIGHT...South winds 5 to 10 knots. Seas around 2 feet.

Winds and seas higher in and near thunderstorms.

$$

GMZ470-161015-
Coastal waters from Cameron LA to High Island TX from 20 to 60 NM-
327 PM CST Mon Dec 15 2025

.TONIGHT...East winds around 10 knots, becoming 5 to 10 knots
after midnight. Seas 2 to 3 feet. Wave Detail: East 3 feet at
5 seconds.
.TUESDAY...Southeast winds 5 to 10 knots. Seas around 2 feet.
Wave Detail: East 2 feet at 6 seconds.
.TUESDAY NIGHT...Southeast winds 10 to 15 knots, diminishing to
5 to 10 knots after midnight. Seas around 2 feet. Wave Detail:
Southeast 2 feet at 5 seconds. A slight chance of showers and
thunderstorms after midnight.
.WEDNESDAY...Southeast winds 5 to 10 knots. Seas 2 to 3 feet.
Wave Detail: Southeast 2 feet at 4 seconds. A chance of showers
with a slight chance of thunderstorms.
.WEDNESDAY NIGHT...Southeast winds 10 to 15 knots. Seas 2 to
3 feet. Wave Detail: Southeast 2 feet at 4 seconds and southeast
1 foot at 7 seconds. A slight chance of showers and
thunderstorms.
.THURSDAY...Southwest winds 5 to 10 knots. Seas 2 to 3 feet. Wave
Detail: South 3 feet at 6 seconds. A slight chance of showers. A
slight chance of thunderstorms in the afternoon.
.THURSDAY NIGHT...Northwest winds 10 to 15 knots, becoming
northeast with gusts up to 20 knots after midnight. Seas 2 to
4 feet. A slight chance of showers in the evening.
.FRIDAY...Northeast winds 10 to 15 knots. Seas 2 to 4 feet.
.FRIDAY NIGHT...Southeast winds around 10 knots. Seas 2 to
3 feet.
.SATURDAY...South winds around 10 knots. Seas around 2 feet.
.SATURDAY NIGHT...South winds 10 to 15 knots. Seas 2 to 3 feet.

Winds and seas higher in and near thunderstorms.

$$

GMZ472-161015-
Coastal waters from Intracoastal City to Cameron LA from 20 to
60 NM-
327 PM CST Mon Dec 15 2025

.TONIGHT...East winds around 10 knots. Seas 2 to 3 feet. Wave
Detail: East 3 feet at 5 seconds.
.TUESDAY...East winds 5 to 10 knots. Seas around 2 feet. Wave
Detail: East 2 feet at 5 seconds.
.TUESDAY NIGHT...Southeast winds 10 to 15 knots. Seas around
2 feet. Wave Detail: Southeast 2 feet at 5 seconds. A slight
chance of showers after midnight.
.WEDNESDAY...East winds 5 to 10 knots, increasing to 10 to
15 knots in the afternoon. Seas 2 to 3 feet. Wave Detail:
Southeast 2 feet at 5 seconds. A chance of showers with a slight
chance of thunderstorms.
.WEDNESDAY NIGHT...Southeast winds 10 to 15 knots. Seas 2 to
3 feet. Wave Detail: Southeast 3 feet at 7 seconds and southeast
2 feet at 4 seconds. A chance of showers with a slight chance of
thunderstorms.
.THURSDAY...Southwest winds 5 to 10 knots. Seas 2 to 3 feet. Wave
Detail: Southeast 3 feet at 7 seconds and southwest 2 feet at
4 seconds. A slight chance of thunderstorms. A slight chance of
showers in the morning, then a chance of showers in the
afternoon.
.THURSDAY NIGHT...Northwest winds 10 to 15 knots, becoming
northeast with gusts up to 20 knots after midnight. Seas 2 to
4 feet. A chance of showers with a slight chance of thunderstorms
in the evening.
.FRIDAY...Northeast winds 10 to 15 knots. Seas 2 to 4 feet.
.FRIDAY NIGHT...Southeast winds around 10 knots. Seas around
2 feet.
.SATURDAY...South winds around 10 knots. Seas around 2 feet.
.SATURDAY NIGHT...South winds around 10 knots. Seas around
2 feet.

Winds and seas higher in and near thunderstorms.

$$

GMZ475-161015-
Coastal waters from Lower Atchafalaya River to Intracoastal City
LA from 20 to 60 NM-
327 PM CST Mon Dec 15 2025

.TONIGHT...East winds 10 to 15 knots. Seas 2 to 3 feet. Wave
Detail: East 3 feet at 5 seconds.
.TUESDAY...East winds around 10 knots. Seas 2 to 3 feet. Wave
Detail: East 2 feet at 7 seconds.
.TUESDAY NIGHT...Southeast winds around 10 knots. Seas 2 to
3 feet. Wave Detail: East 2 feet at 5 seconds.
.WEDNESDAY...East winds 5 to 10 knots. Seas 2 to 3 feet. Wave
Detail: East 3 feet at 7 seconds. A slight chance of showers in
the morning, then a chance of showers in the afternoon.
.WEDNESDAY NIGHT...Southeast winds 10 to 15 knots. Seas 2 to
3 feet. Wave Detail: Southeast 3 feet at 7 seconds. A chance of
showers. A chance of thunderstorms after midnight.
.THURSDAY...South winds around 10 knots, becoming southwest in
the afternoon. Seas 2 to 3 feet. Wave Detail: Southeast 3 feet at
8 seconds. A chance of showers. A chance of thunderstorms, mainly
in the morning.
.THURSDAY NIGHT...Northwest winds 5 to 10 knots, becoming north
10 to 15 knots with gusts up to 20 knots after midnight. Seas
2 to 4 feet. A chance of showers with a slight chance of
thunderstorms in the evening, then a slight chance of showers
after midnight.
.FRIDAY...Northeast winds 10 to 15 knots. Seas 2 to 4 feet.
.FRIDAY NIGHT...East winds 10 to 15 knots. Seas 2 to 3 feet. A
slight chance of showers and thunderstorms in the evening.
.SATURDAY...Southeast winds around 10 knots. Seas around 2 feet.
.SATURDAY NIGHT...South winds around 10 knots. Seas around
2 feet. A slight chance of showers.

Winds and seas higher in and near thunderstorms.

$$