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 20 21 22
236
FZUS54 KLCH 220918
CWFLCH

Coastal Waters Forecast
National Weather Service Lake Charles LA
418 AM CDT Tue Apr 22 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.

GMZ400-222230-
418 AM CDT Tue Apr 22 2025

.SYNOPSIS...
Patchy fog early this morning is expected to dissipate by
midmorning, with fog again possible tonight. Otherwise, light to
moderate southeast winds will continue for several days, with no
signals for any change in the pattern. Seas are expected to range
from 2 to 4 feet through the week.

$$

GMZ430-222230-
Sabine Lake-
418 AM CDT Tue Apr 22 2025

.TODAY...Southeast winds 5 to 10 knots, becoming south late. Lake
waters light chop. Patchy fog early this morning. A slight chance
of showers. A slight chance of thunderstorms late this morning
and afternoon.
.TONIGHT...Southeast winds 5 to 10 knots. Lake waters light chop.
Patchy fog after midnight.
.WEDNESDAY...Southeast winds 5 to 10 knots. Lake waters light
chop. Patchy fog in the morning. A chance of thunderstorms. A
chance of showers in the morning, then showers likely in the
afternoon.
.WEDNESDAY NIGHT...Southeast winds 5 to 10 knots. Lake waters
light chop.
.THURSDAY...Southeast winds 5 to 10 knots, increasing to 10 to
15 knots in the afternoon. Lake waters choppy. A slight chance of
thunderstorms. A slight chance of showers in the morning, then a
chance of showers in the afternoon.
.THURSDAY NIGHT...Southeast winds 10 to 15 knots, diminishing to
5 to 10 knots after midnight. Lake waters choppy.
.FRIDAY...South winds 5 to 10 knots. Lake waters light chop. A
slight chance of showers and thunderstorms in the afternoon.
.FRIDAY NIGHT...Southeast winds 5 to 10 knots. Lake waters light
chop.
.SATURDAY...Southeast winds 5 to 10 knots. Lake waters light
chop.
.SATURDAY NIGHT...Southeast winds 5 to 10 knots. Lake waters
light chop.

Winds and waves higher in and near thunderstorms.

$$

GMZ432-222230-
Calcasieu Lake-
418 AM CDT Tue Apr 22 2025

.TODAY...Southeast winds around 5 knots, becoming south this
afternoon. Lake waters light chop. Patchy fog early this morning.
A slight chance of showers until late afternoon. A slight chance
of thunderstorms late this morning and early afternoon, then a
chance of showers and thunderstorms late.
.TONIGHT...Southeast winds 5 to 10 knots. Lake waters light chop.
A chance of showers and thunderstorms in the evening. Patchy fog
after midnight.
.WEDNESDAY...Southeast winds 5 to 10 knots. Lake waters light
chop. Patchy fog in the morning. A chance of showers and
thunderstorms.
.WEDNESDAY NIGHT...Southeast winds around 10 knots. Lake 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. Lake waters
choppy. A slight chance of showers. A slight chance of
thunderstorms in the afternoon.
.THURSDAY NIGHT...Southeast winds 10 to 15 knots. Lake waters
choppy.
.FRIDAY...South winds 10 to 15 knots. Lake waters choppy. A
slight chance of showers and thunderstorms in the afternoon.
.FRIDAY NIGHT...Southeast winds 5 to 10 knots. Lake waters light
chop.
.SATURDAY...Southeast winds 5 to 10 knots. Lake waters light
chop.
.SATURDAY NIGHT...Southeast winds 5 to 10 knots. Lake waters
light chop.

Winds and waves higher in and near thunderstorms.

$$

GMZ435-222230-
Vermilion and West Cote Blanche Bays-
418 AM CDT Tue Apr 22 2025

.TODAY...South winds 5 to 10 knots. Bay waters light chop. Patchy
fog early this morning. A chance of showers and thunderstorms
this afternoon.
.TONIGHT...Southeast winds 5 to 10 knots. Bay waters light chop.
A slight chance of showers and thunderstorms in the evening.
.WEDNESDAY...Southeast winds 5 to 10 knots. Bay waters light
chop. Patchy fog in the morning. A slight chance of showers and
thunderstorms in the morning, then a chance of showers and
thunderstorms in the afternoon.
.WEDNESDAY NIGHT...Southeast winds 5 to 10 knots. Bay waters
light chop.
.THURSDAY...Southeast winds 5 to 10 knots. Bay waters light chop.
A slight chance of showers and thunderstorms in the afternoon.
.THURSDAY NIGHT...Southeast winds around 10 knots. Bay waters
light chop.
.FRIDAY...Southeast winds 5 to 10 knots. Bay waters light chop.
.FRIDAY NIGHT...Southeast winds 5 to 10 knots. Bay waters light
chop.
.SATURDAY...Southeast winds 5 to 10 knots. Bay waters light chop.
.SATURDAY NIGHT...Southeast winds 5 to 10 knots. Bay waters light
chop.

Winds and waves higher in and near thunderstorms.

$$

GMZ436-222230-
Atchafalaya and East Cote Blanche Bays-
418 AM CDT Tue Apr 22 2025

.TODAY...Southeast winds 5 to 10 knots. Bay waters light chop.
Patchy fog early this morning. A slight chance of showers early
this morning. A chance of showers and thunderstorms this
afternoon.
.TONIGHT...Southeast winds around 5 knots. Bay waters smooth. A
slight chance of showers and thunderstorms in the evening.
.WEDNESDAY...Southeast winds 5 to 10 knots. Bay waters light
chop. A slight chance of showers and thunderstorms in the
morning, then a chance of showers and thunderstorms in the
afternoon.
.WEDNESDAY NIGHT...Southeast winds 5 to 10 knots. Bay waters
light chop.
.THURSDAY...Southeast winds 5 to 10 knots. Bay waters light chop.
A slight chance of showers. A slight chance of thunderstorms in
the afternoon.
.THURSDAY NIGHT...Southeast winds 5 to 10 knots. Bay waters light
chop.
.FRIDAY...Southeast winds 5 to 10 knots. Bay waters light chop.
.FRIDAY NIGHT...Southeast winds 5 to 10 knots. Bay waters light
chop.
.SATURDAY...Southeast winds 5 to 10 knots. Bay waters light chop.
.SATURDAY NIGHT...Southeast winds 5 to 10 knots. Bay waters light
chop.

Winds and waves higher in and near thunderstorms.

$$

GMZ450-222230-
Coastal waters from Cameron LA to High Island TX out 20 NM-
418 AM CDT Tue Apr 22 2025

.TODAY...Southeast winds 5 to 10 knots. Seas around 2 feet. Wave
Detail: South 2 feet at 7 seconds and southeast 1 foot at
3 seconds. Patchy fog early this morning. A slight chance of
showers. A slight chance of thunderstorms late this morning and
afternoon.
.TONIGHT...Southeast winds around 10 knots. Seas around 2 feet.
Wave Detail: South 2 feet at 6 seconds.
.WEDNESDAY...Southeast winds around 10 knots. Seas around 2 feet.
Wave Detail: Southeast 2 feet at 6 seconds. A chance of showers
and thunderstorms.
.WEDNESDAY NIGHT...Southeast winds 10 to 15 knots. Seas 2 to
3 feet. Wave Detail: Southeast 2 feet at 5 seconds.
.THURSDAY...Southeast winds around 10 knots, increasing to around
15 knots in the afternoon. Seas 2 to 3 feet. Wave Detail: South
2 feet at 5 seconds. A slight chance of showers. A slight chance
of thunderstorms in the afternoon.
.THURSDAY NIGHT...Southeast winds 10 to 15 knots. Seas 2 to
3 feet. Wave Detail: Southeast 3 feet at 5 seconds.
.FRIDAY...Southeast winds 10 to 15 knots. Seas 2 to 3 feet.
.FRIDAY NIGHT...Southeast winds around 10 knots. Seas around
2 feet.
.SATURDAY...Southeast winds around 10 knots. Seas around 2 feet.
.SATURDAY NIGHT...Southeast winds 10 to 15 knots. Seas 2 to
3 feet.

Winds and seas higher in and near thunderstorms.

$$

GMZ452-222230-
Coastal waters from Intracoastal City to Cameron LA out 20 NM-
418 AM CDT Tue Apr 22 2025

.TODAY...Southeast winds 5 to 10 knots. Seas around 2 feet. Wave
Detail: South 2 feet at 7 seconds and southeast 1 foot at
3 seconds. A slight chance of showers this morning. A slight
chance of thunderstorms late this morning. A slight chance of
showers and thunderstorms late.
.TONIGHT...Southeast winds around 10 knots. Seas around 2 feet.
Wave Detail: South 2 feet at 6 seconds.
.WEDNESDAY...Southeast winds around 10 knots. Seas around 2 feet.
Wave Detail: South 2 feet at 6 seconds. A chance of showers. A
slight chance of thunderstorms in the morning, then a chance of
thunderstorms in the afternoon.
.WEDNESDAY NIGHT...Southeast winds 10 to 15 knots. Seas 2 to
3 feet. Wave Detail: South 2 feet at 6 seconds.
.THURSDAY...Southeast winds 10 to 15 knots. Seas 2 to 3 feet.
Wave Detail: South 2 feet at 5 seconds. A slight chance of
showers. A slight chance of thunderstorms in the afternoon.
.THURSDAY NIGHT...Southeast winds 10 to 15 knots. Seas 2 to
3 feet. Wave Detail: South 3 feet at 6 seconds and southeast
2 feet at 3 seconds.
.FRIDAY...Southeast winds 10 to 15 knots. Seas 2 to 3 feet.
.FRIDAY NIGHT...Southeast winds around 10 knots. Seas 2 to
3 feet.
.SATURDAY...Southeast winds 5 to 10 knots. Seas around 2 feet.
.SATURDAY NIGHT...Southeast winds around 10 knots. Seas 2 to
3 feet.

Winds and seas higher in and near thunderstorms.

$$

GMZ455-222230-
Coastal waters from Lower Atchafalaya River to Intracoastal City
LA out 20 NM-
418 AM CDT Tue Apr 22 2025

.TODAY...Southeast winds 5 to 10 knots. Seas 1 to 2 feet. Wave
Detail: Southeast 1 foot at 3 seconds and south 1 foot at
7 seconds. A slight chance of showers early this morning. A
slight chance of showers and thunderstorms this afternoon.
.TONIGHT...Southeast winds 5 to 10 knots. Seas around 2 feet.
Wave Detail: Southeast 1 foot at 3 seconds and south 1 foot at
7 seconds.
.WEDNESDAY...Southeast winds 5 to 10 knots. Seas around 2 feet.
Wave Detail: South 2 feet at 5 seconds. A chance of showers. A
slight chance of thunderstorms in the morning, then a chance of
thunderstorms in the afternoon.
.WEDNESDAY NIGHT...Southeast winds around 10 knots. Seas around
2 feet. Wave Detail: South 2 feet at 6 seconds and southeast
1 foot at 3 seconds.
.THURSDAY...Southeast winds around 10 knots. Seas around 2 feet.
Wave Detail: South 2 feet at 6 seconds and southeast 1 foot at
3 seconds. A slight chance of showers and thunderstorms.
.THURSDAY NIGHT...Southeast winds around 10 knots. Seas around
2 feet. Wave Detail: South 2 feet at 7 seconds and southeast
1 foot at 3 seconds.
.FRIDAY...Southeast winds around 10 knots. Seas around 2 feet.
.FRIDAY NIGHT...Southeast winds 5 to 10 knots. Seas around
2 feet.
.SATURDAY...Southeast winds 5 to 10 knots. Seas around 2 feet.
.SATURDAY NIGHT...Southeast winds 5 to 10 knots. Seas around
2 feet.

Winds and seas higher in and near thunderstorms.

$$

GMZ470-222230-
Coastal waters from Cameron LA to High Island TX from 20 to 60 NM-
418 AM CDT Tue Apr 22 2025

.TODAY...Southeast winds around 10 knots. Seas 2 to 3 feet. Wave
Detail: South 3 feet at 7 seconds. Patchy fog early this morning.
.TONIGHT...Southeast winds around 10 knots. Seas 2 to 3 feet.
Wave Detail: South 3 feet at 7 seconds.
.WEDNESDAY...Southeast winds around 10 knots. Seas 2 to 3 feet.
Wave Detail: Southeast 3 feet at 6 seconds. A chance of showers.
A slight chance of thunderstorms in the morning, then a chance of
thunderstorms in the afternoon.
.WEDNESDAY NIGHT...Southeast winds around 10 knots. Seas around
3 feet. Wave Detail: Southeast 3 feet at 6 seconds and southeast
1 foot at 3 seconds.
.THURSDAY...Southeast winds around 10 knots. Seas around 3 feet.
Wave Detail: South 3 feet at 6 seconds and southeast 1 foot at
3 seconds. A slight chance of showers. A slight chance of
thunderstorms in the afternoon.
.THURSDAY NIGHT...Southeast winds around 10 knots. Seas 3 to
4 feet. Wave Detail: Southeast 4 feet at 7 seconds and southeast
1 foot at 3 seconds.
.FRIDAY...Southeast winds around 10 knots. Seas 3 to 4 feet.
.FRIDAY NIGHT...Southeast winds around 10 knots. Seas 3 to
4 feet.
.SATURDAY...Southeast winds around 10 knots. Seas around 3 feet.
.SATURDAY NIGHT...Southeast winds around 10 knots. Seas around
3 feet.

Winds and seas higher in and near thunderstorms.

$$

GMZ472-222230-
Coastal waters from Intracoastal City to Cameron LA from 20 to
60 NM-
418 AM CDT Tue Apr 22 2025

.TODAY...Southeast winds around 10 knots. Seas 3 to 4 feet. Wave
Detail: South 3 feet at 7 seconds. A slight chance of showers
early this morning.
.TONIGHT...Southeast winds around 10 knots. Seas 2 to 3 feet.
Wave Detail: South 3 feet at 7 seconds.
.WEDNESDAY...Southeast winds around 10 knots. Seas around 3 feet.
Wave Detail: Southeast 3 feet at 7 seconds and south 1 foot at
4 seconds. A chance of showers. A slight chance of thunderstorms
in the morning, then a chance of thunderstorms in the afternoon.
.WEDNESDAY NIGHT...Southeast winds around 10 knots. Seas around
3 feet. Wave Detail: Southeast 3 feet at 7 seconds and south
1 foot at 4 seconds.
.THURSDAY...Southeast winds 10 to 15 knots. Seas around 3 feet.
Wave Detail: Southeast 3 feet at 7 seconds and south 1 foot at
4 seconds. A slight chance of showers in the morning.
.THURSDAY NIGHT...Southeast winds around 10 knots. Seas 3 to
4 feet. Wave Detail: Southeast 4 feet at 7 seconds and south
1 foot at 4 seconds.
.FRIDAY...Southeast winds around 10 knots. Seas 3 to 4 feet.
.FRIDAY NIGHT...Southeast winds around 10 knots. Seas 3 to
4 feet.
.SATURDAY...Southeast winds around 10 knots. Seas around 3 feet.
.SATURDAY NIGHT...Southeast winds around 10 knots. Seas around
3 feet.

Winds and seas higher in and near thunderstorms.

$$

GMZ475-222230-
Coastal waters from Lower Atchafalaya River to Intracoastal City
LA from 20 to 60 NM-
418 AM CDT Tue Apr 22 2025

.TODAY...Southeast winds 5 to 10 knots. Seas 2 to 4 feet. Wave
Detail: South 4 feet at 7 seconds. A slight chance of showers
early this morning.
.TONIGHT...Southeast winds 5 to 10 knots. Seas 2 to 3 feet. Wave
Detail: Southeast 3 feet at 7 seconds.
.WEDNESDAY...Southeast winds around 10 knots. Seas 2 to 3 feet.
Wave Detail: Southeast 3 feet at 7 seconds. A slight chance of
thunderstorms. 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.
.THURSDAY...Southeast winds 10 to 15 knots. Seas 3 to 4 feet.
Wave Detail: Southeast 4 feet at 6 seconds and southeast 1 foot
at 3 seconds. A slight chance of showers in the morning.
.THURSDAY NIGHT...Southeast winds 10 to 15 knots. Seas 3 to
4 feet. Wave Detail: South 4 feet at 7 seconds.
.FRIDAY...Southeast winds 10 to 15 knots. Seas 3 to 4 feet.
.FRIDAY NIGHT...Southeast winds around 10 knots. Seas 3 to
4 feet.
.SATURDAY...Southeast winds around 10 knots. Seas 2 to 4 feet.
.SATURDAY NIGHT...Southeast winds around 10 knots. Seas 2 to
3 feet.

Winds and seas higher in and near thunderstorms.

$$