National Weather Service Marine Forecast FZUS54 KLCH
FZUS54 KLCH 170809
CWFLCH
Coastal Waters Forecast
National Weather Service Lake Charles LA
308 AM CDT Fri Apr 17 2026
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.
GMZ400-172100
308 AM CDT Fri Apr 17 2026
.Synopsis for Lower Atchafalaya River LA to High Island TX out 60 NM including Sabine and Calcasieu Lakes and Vermilion and Cote Blanche Bays...
Surface high pressure will ridge across the northern Gulf from off the Florida coast through Saturday with low pressure forming over the Plains. This will allow for a persistent modest southerly flow. A cold front is forecast to move through on Saturday night with strong and gusty northerly winds along with building seas behind it. There is the potential for frequent gusts over 34 knots and gale force conditions on Sunday morning, especially west of Cameron and a Gale Watch/Warning may be needed.
GMZ430-172100
Sabine Lake
308 AM CDT Fri Apr 17 2026
TODAY
South winds 10 to 15 knots with gusts up to 20 knots.
Lake waters choppy.
TONIGHT
South winds 10 to 15 knots. Lake waters choppy.
SATURDAY
South winds around 10 knots. Lake waters light chop.
A slight chance of showers and thunderstorms in the afternoon.
SATURDAY NIGHT
West winds 10 to 15 knots, becoming north 20 to
25 knots after midnight. Lake waters very rough. Showers likely
with a chance of thunderstorms in the evening, then showers with
a slight chance of thunderstorms after midnight.
SUNDAY
Northeast winds 20 to 25 knots, diminishing to around
15 knots in the afternoon. Lake waters very rough. A slight
chance of showers in the morning.
SUNDAY NIGHT
Northeast winds 10 to 15 knots. Lake waters
choppy.
MONDAY
East winds 10 to 15 knots. Lake waters choppy.
MONDAY NIGHT
Southeast winds 5 to 10 knots. Lake waters light
chop.
TUESDAY
East winds 5 to 10 knots, becoming southeast 10 to
15 knots in the afternoon. Lake waters choppy. A slight chance of
showers. A slight chance of thunderstorms in the afternoon.
TUESDAY NIGHT
Southeast winds 5 to 10 knots. Lake waters light
chop. A slight chance of showers in the evening.
Winds and waves higher in and near thunderstorms.
GMZ432-172100
Calcasieu Lake
308 AM CDT Fri Apr 17 2026
TODAY
South winds 10 to 15 knots with gusts up to 25 knots.
Lake waters choppy.
TONIGHT
South winds 10 to 15 knots. Lake waters choppy.
SATURDAY
South winds around 10 knots. Lake waters light chop.
A slight chance of showers and thunderstorms in the afternoon.
SATURDAY NIGHT
West winds around 10 knots, becoming north
15 to 20 knots with gusts up to 25 knots after midnight. Lake
waters rough. Showers likely with a chance of thunderstorms in
the evening, then showers with a slight chance of thunderstorms
after midnight.
SUNDAY
Northeast winds 20 to 25 knots, diminishing to 15 to
20 knots in the afternoon. Lake waters very rough. A slight
chance of showers in the morning.
SUNDAY NIGHT
Northeast winds 10 to 15 knots with gusts up to
20 knots. Lake waters choppy.
MONDAY
East winds 10 to 15 knots. Lake waters choppy.
MONDAY NIGHT
Southeast winds 5 to 10 knots. Lake waters light
chop.
TUESDAY
East winds 5 to 10 knots. Lake waters light chop. A
slight chance of showers. A slight chance of thunderstorms in the
afternoon.
TUESDAY NIGHT
Southeast winds around 10 knots. Lake waters
light chop. A slight chance of showers in the evening, then a
slight chance of showers and thunderstorms after midnight.
Winds and waves higher in and near thunderstorms.
GMZ435-172100
Vermilion and West Cote Blanche Bays
308 AM CDT Fri Apr 17 2026
TODAY
South winds 5 to 10 knots, increasing to 10 to 15 knots
with gusts up to 20 knots this afternoon. Bay waters choppy.
TONIGHT
South winds 10 to 15 knots. Bay waters choppy.
SATURDAY
South winds around 10 knots. Bay waters light chop.
SATURDAY NIGHT
Southwest winds 5 to 10 knots, becoming north
15 to 20 knots after midnight. Bay 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.
SUNDAY
Northeast winds 15 to 20 knots with gusts up to
25 knots. Bay waters rough. A chance of showers with a slight
chance of thunderstorms in the morning.
SUNDAY NIGHT
Northeast winds 10 to 15 knots. Bay waters
choppy.
MONDAY
East winds 10 to 15 knots. Bay waters choppy.
MONDAY NIGHT
East winds 5 to 10 knots. Bay waters light chop.
TUESDAY
East winds 5 to 10 knots, becoming southeast 10 to
15 knots in the afternoon. Bay waters choppy. A slight chance of
showers in the afternoon.
TUESDAY NIGHT
Southeast winds 10 to 15 knots, diminishing to
5 to 10 knots after midnight. Bay waters choppy. A slight chance
of showers.
Winds and waves higher in and near thunderstorms.
GMZ436-172100
Atchafalaya and East Cote Blanche Bays
308 AM CDT Fri Apr 17 2026
TODAY
South winds 5 to 10 knots. Bay waters light chop.
TONIGHT
South winds 5 to 10 knots. Bay waters light chop.
SATURDAY
South winds 5 to 10 knots. Bay waters light chop.
SATURDAY NIGHT
Southwest winds 5 to 10 knots, becoming
northwest 10 to 15 knots with gusts up to 20 knots after
midnight. Bay waters choppy. A slight chance of showers and
thunderstorms in the evening, then a chance of showers and
thunderstorms after midnight.
SUNDAY
North winds 15 to 20 knots, becoming northeast 10 to
15 knots in the afternoon. Bay waters rough. A chance of showers
with a slight chance of thunderstorms in the morning.
SUNDAY NIGHT
Northeast winds 10 to 15 knots. Bay waters
choppy.
MONDAY
East winds 10 to 15 knots. Bay waters choppy.
MONDAY NIGHT
East winds 5 to 10 knots. Bay waters light chop.
TUESDAY
East winds 5 to 10 knots, becoming southeast 10 to
15 knots in the afternoon. Bay waters choppy. A slight chance of
showers in the afternoon.
TUESDAY NIGHT
Southeast winds 10 to 15 knots, diminishing to
5 to 10 knots after midnight. Bay waters choppy. A slight chance
of showers after midnight.
Winds and waves higher in and near thunderstorms.
GMZ450-172100
Coastal waters from Cameron LA to High Island TX out 20 NM
308 AM CDT Fri Apr 17 2026
TODAY
South winds 15 to 20 knots. Seas 2 to 3 feet. Wave
Detail: South 3 feet at 4 seconds.
TONIGHT
South winds 15 to 20 knots. Seas around 3 feet. Wave
Detail: South 3 feet at 4 seconds.
SATURDAY
South winds 10 to 15 knots. Seas 2 to 3 feet. Wave
Detail: South 3 feet at 5 seconds. A slight chance of showers and
thunderstorms in the afternoon.
SATURDAY NIGHT
Southwest winds 10 to 15 knots, becoming north
20 to 25 knots with gusts up to 30 knots after midnight. Seas
2 to 4 feet. Wave Detail: Northwest 4 feet at 5 seconds. Showers
likely with a chance of thunderstorms in the evening, then
showers with a slight chance of thunderstorms after midnight.
SUNDAY
Northeast winds 20 to 25 knots with gusts up to
30 knots. Seas 3 to 5 feet, occasionally to 6 feet. Wave Detail:
Northeast 5 feet at 5 seconds and south 1 foot at 6 seconds. A
chance of showers in the morning.
SUNDAY NIGHT
Northeast winds 15 to 20 knots with gusts up to
25 knots. Seas 2 to 4 feet. Wave Detail: Northeast 4 feet at
5 seconds.
MONDAY
East winds 15 to 20 knots. Seas 2 to 4 feet.
MONDAY NIGHT
East winds 10 to 15 knots. Seas 2 to 3 feet. A
slight chance of showers. A slight chance of thunderstorms after
midnight.
TUESDAY
Southeast winds around 15 knots. Seas 2 to 3 feet. A
slight chance of showers in the morning, then a chance of showers
with a slight chance of thunderstorms in the afternoon.
TUESDAY NIGHT
Southeast winds 15 to 20 knots, diminishing to
10 to 15 knots after midnight. Seas 2 to 4 feet. A slight chance
of showers. A slight chance of thunderstorms after midnight.
Winds and seas higher in and near thunderstorms.
GMZ452-172100
Coastal waters from Intracoastal City to Cameron LA out 20 NM
308 AM CDT Fri Apr 17 2026
TODAY
South winds 10 to 15 knots. Seas 2 to 3 feet. Wave
Detail: South 3 feet at 4 seconds.
TONIGHT
South winds around 15 knots with gusts up to 20 knots.
Seas 2 to 3 feet. Wave Detail: South 3 feet at 4 seconds.
SATURDAY
South winds 10 to 15 knots. Seas 2 to 3 feet. Wave
Detail: South 3 feet at 5 seconds.
SATURDAY NIGHT
Southwest winds 5 to 10 knots, becoming north
20 to 25 knots with gusts up to 30 knots after midnight. Seas
2 to 3 feet. Wave Detail: Northwest 3 feet at 5 seconds. A chance
of thunderstorms. A chance of showers in the evening, then
showers likely after midnight.
SUNDAY
Northeast winds 20 to 25 knots with gusts up to
30 knots. Seas 3 to 5 feet, occasionally to 6 feet. Wave Detail:
North 5 feet at 4 seconds and south 3 feet at 6 seconds. A chance
of showers in the morning.
SUNDAY NIGHT
Northeast winds 15 to 20 knots with gusts up to
25 knots. Seas 2 to 4 feet. Wave Detail: Northeast 4 feet at
4 seconds.
MONDAY
East winds 15 to 20 knots, diminishing to 10 to
15 knots in the afternoon. Seas 2 to 4 feet.
MONDAY NIGHT
East winds 10 to 15 knots. Seas 2 to 3 feet. A
slight chance of showers after midnight.
TUESDAY
East winds around 15 knots. Seas 2 to 4 feet. A slight
chance of showers. A slight chance of thunderstorms in the
afternoon.
TUESDAY NIGHT
Southeast winds 15 to 20 knots. Seas 2 to
4 feet. A slight chance of showers. A slight chance of
thunderstorms after midnight.
Winds and seas higher in and near thunderstorms.
GMZ455-172100
Coastal waters from Lower Atchafalaya River to Intracoastal City
LA out 20 NM
308 AM CDT Fri Apr 17 2026
TODAY
Southeast winds 5 to 10 knots. Seas around 2 feet. Wave
Detail: South 2 feet at 3 seconds.
TONIGHT
South winds 10 to 15 knots. Seas around 2 feet. Wave
Detail: South 2 feet at 3 seconds.
SATURDAY
South winds 5 to 10 knots. Seas around 2 feet. Wave
Detail: South 2 feet at 4 seconds.
SATURDAY NIGHT
Southwest winds 5 to 10 knots, becoming
northwest 15 to 20 knots with gusts up to 25 knots after
midnight. Seas 1 to 2 feet. Wave Detail: West 2 feet at
5 seconds. A slight chance of showers and thunderstorms in the
evening, then a chance of showers and thunderstorms after
midnight.
SUNDAY
Northeast winds 15 to 20 knots with gusts up to
25 knots. Seas 2 to 3 feet. Wave Detail: North 3 feet at
3 seconds. A chance of showers with a slight chance of
thunderstorms in the morning.
SUNDAY NIGHT
Northeast winds 15 to 20 knots with gusts up to
25 knots. Seas 2 to 3 feet. Wave Detail: Northeast 2 feet at
3 seconds.
MONDAY
East winds 15 to 20 knots. Seas 2 to 3 feet.
MONDAY NIGHT
East winds 10 to 15 knots. Seas 2 to 3 feet.
TUESDAY
East winds 10 to 15 knots. Seas 2 to 3 feet. A slight
chance of showers.
TUESDAY NIGHT
Southeast winds 10 to 15 knots. Seas 2 to
3 feet. A slight chance of showers.
Winds and seas higher in and near thunderstorms.
GMZ470-172100
Coastal waters from Cameron LA to High Island TX from 20 to 60 NM
308 AM CDT Fri Apr 17 2026
TODAY
Southeast winds around 15 knots. Seas around 3 feet.
Wave Detail: Southeast 3 feet at 6 seconds.
TONIGHT
South winds around 15 knots with gusts up to 20 knots.
Seas 3 to 4 feet. Wave Detail: Southeast 3 feet at 6 seconds.
SATURDAY
South winds 10 to 15 knots, diminishing to 5 to
10 knots in the afternoon. Seas 2 to 3 feet. Wave Detail: South
3 feet at 6 seconds. A slight chance of showers in the afternoon.
SATURDAY NIGHT
South winds 5 to 10 knots, becoming north 20 to
25 knots with gusts up to 30 knots after midnight. Seas around
2 feet, building to 3 to 5 feet, occasionally to 6 feet after
midnight. Wave Detail: South 2 feet at 6 seconds, becoming north
4 feet at 4 seconds and southeast 3 feet at 6 seconds. A chance
of showers and thunderstorms in the evening, then showers with a
slight chance of thunderstorms after midnight.
SUNDAY
Northeast winds 25 to 30 knots, diminishing to 20 to
25 knots in the afternoon. Seas 5 to 7 feet, occasionally to
9 feet. Wave Detail: Northeast 7 feet at 7 seconds and south
2 feet at 6 seconds. A chance of showers in the morning.
SUNDAY NIGHT
Northeast winds around 20 knots with gusts up to
25 knots. Seas 4 to 6 feet, occasionally to 8 feet. Wave Detail:
Northeast 6 feet at 6 seconds.
MONDAY
East winds 15 to 20 knots. Seas 4 to 6 feet,
occasionally to 8 feet.
MONDAY NIGHT
East winds 15 to 20 knots. Seas 3 to 5 feet,
occasionally to 6 feet. A slight chance of showers.
TUESDAY
Southeast winds 15 to 20 knots. Seas 3 to 4 feet. A
chance of showers. A slight chance of thunderstorms in the
afternoon.
TUESDAY NIGHT
Southeast winds 15 to 20 knots. Seas 3 to
5 feet, occasionally to 6 feet. A slight chance of thunderstorms.
A chance of showers, mainly in the evening.
Winds and seas higher in and near thunderstorms.
GMZ472-172100
Coastal waters from Intracoastal City to Cameron LA from 20 to
60 NM
308 AM CDT Fri Apr 17 2026
TODAY
Southeast winds 10 to 15 knots. Seas around 3 feet. Wave
Detail: South 3 feet at 6 seconds.
TONIGHT
South winds 10 to 15 knots with gusts up to 20 knots.
Seas around 3 feet. Wave Detail: Southeast 3 feet at 6 seconds.
SATURDAY
South winds 10 to 15 knots, diminishing to 5 to
10 knots in the afternoon. Seas 2 to 3 feet. Wave Detail: South
3 feet at 5 seconds.
SATURDAY NIGHT
South winds 5 to 10 knots, becoming north 20 to
25 knots with gusts up to 30 knots after midnight. Seas 2 to
3 feet. Wave Detail: South 3 feet at 5 seconds. A chance of
showers with a slight chance of thunderstorms in the evening,
then showers likely with a chance of thunderstorms after
midnight.
SUNDAY
Northeast winds 20 to 25 knots with gusts up to
30 knots. Seas 5 to 7 feet, occasionally to 9 feet. Wave Detail:
North 7 feet at 6 seconds and south 3 feet at 6 seconds. A chance
of showers with a slight chance of thunderstorms in the morning.
SUNDAY NIGHT
Northeast winds 20 to 25 knots. Seas 4 to 6 feet,
occasionally to 8 feet. Wave Detail: Northeast 6 feet at
5 seconds.
MONDAY
East winds 20 to 25 knots, diminishing to 15 to
20 knots in the afternoon. Seas 4 to 6 feet, occasionally to
8 feet.
MONDAY NIGHT
East winds 15 to 20 knots. Seas 4 to 6 feet,
occasionally to 8 feet. A slight chance of showers after
midnight.
TUESDAY
East winds 15 to 20 knots. Seas 3 to 5 feet,
occasionally to 6 feet. A slight chance of showers in the
morning, then a chance of showers with a slight chance of
thunderstorms in the afternoon.
TUESDAY NIGHT
Southeast winds 15 to 20 knots. Seas 4 to
5 feet, occasionally to 6 feet. A slight chance of showers in the
evening, then a chance of showers with a slight chance of
thunderstorms after midnight.
Winds and seas higher in and near thunderstorms.
GMZ475-172100
Coastal waters from Lower Atchafalaya River to Intracoastal City
LA from 20 to 60 NM
308 AM CDT Fri Apr 17 2026
TODAY
Southeast winds 10 to 15 knots. Seas 2 to 3 feet. Wave
Detail: Southeast 3 feet at 6 seconds.
TONIGHT
South winds 10 to 15 knots. Seas around 3 feet. Wave
Detail: Southeast 3 feet at 5 seconds.
SATURDAY
South winds 10 to 15 knots, diminishing to 5 to
10 knots in the afternoon. Seas 2 to 3 feet. Wave Detail: South
3 feet at 5 seconds.
SATURDAY NIGHT
South winds 5 to 10 knots, becoming northwest
10 to 15 knots with gusts up to 25 knots after midnight. Seas
around 2 feet. Wave Detail: Southeast 2 feet at 5 seconds. A
chance of showers with a slight chance of thunderstorms after
midnight.
SUNDAY
Northeast winds 20 to 25 knots with gusts up to
30 knots. Seas 4 to 6 feet, occasionally to 8 feet. Wave Detail:
North 6 feet at 5 seconds and south 3 feet at 6 seconds. A chance
of showers with a slight chance of thunderstorms in the morning.
SUNDAY NIGHT
Northeast winds 20 to 25 knots. Seas 5 to 7 feet,
occasionally to 9 feet. Wave Detail: Northeast 7 feet at
6 seconds and south 1 foot at 6 seconds.
MONDAY
East winds 20 to 25 knots. Seas 5 to 7 feet,
occasionally to 9 feet.
MONDAY NIGHT
East winds 20 to 25 knots, diminishing to 15 to
20 knots after midnight. Seas 5 to 7 feet, occasionally to
9 feet.
TUESDAY
East winds 15 to 20 knots. Seas 5 to 7 feet,
occasionally to 9 feet. A slight chance of thunderstorms in the
morning. A slight chance of showers.
TUESDAY NIGHT
Southeast winds 15 to 20 knots. Seas 5 to
7 feet, occasionally to 9 feet. A slight chance of showers.
Winds and seas higher in and near thunderstorms.
NDBC on Facebook
NOAA on LinkedIn
NDBC on Twitter