National Weather Service Marine Forecast FZUS54 KLCH

FZUS54 KLCH 270933
CWFLCH

Coastal Waters Forecast
National Weather Service Lake Charles LA
433 AM CDT Thu Mar 27 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.

GMZ400-272200
433 AM CDT Thu Mar 27 2025

SYNOPSIS

A weak area of low pressure and disturbance aloft will mover across Texas and Louisiana late today into Saturday. An increase in storm chances and winds will occur as a result.

A cold front will move into the coastal waters Monday with an offshore flow persisting into Tuesday.

---

GMZ430-272200
Sabine Lake
433 AM CDT Thu Mar 27 2025

TODAY
East winds 5 to 10 knots, becoming southeast 10 to 15 knots late. Lake waters choppy. A slight chance of showers early this morning, then a chance of showers late this morning and early afternoon. A slight chance of showers late.

TONIGHT
Southeast winds 10 to 15 knots with gusts up to 20 knots. Lake waters choppy. A chance of showers and thunderstorms after midnight.

FRIDAY
Southeast winds 10 to 15 knots with gusts up to 20 knots. Lake waters choppy. A chance of thunderstorms. Showers.

FRIDAY NIGHT
Southeast winds 15 to 20 knots. Lake waters rough. Showers with thunderstorms likely in the evening, then showers likely with a chance of thunderstorms after midnight.

SATURDAY
South winds 10 to 15 knots. Lake waters choppy. A chance of showers and thunderstorms, mainly in the morning.

SATURDAY NIGHT
South winds 10 to 15 knots. Lake waters choppy.

SUNDAY
South winds 10 to 15 knots. Lake waters choppy.

SUNDAY NIGHT
South winds 5 to 10 knots. Lake waters light chop.

MONDAY
Southwest winds 5 to 10 knots. Lake waters light chop.

MONDAY NIGHT
Southeast winds 5 to 10 knots, becoming northeast after midnight. Lake waters light chop.

Winds and waves higher in and near thunderstorms.

---

GMZ432-272200
Calcasieu Lake
433 AM CDT Thu Mar 27 2025

TODAY
Southeast winds 5 to 10 knots, increasing to 10 to 15 knots with gusts up to 20 knots late. Lake waters choppy. A slight chance of showers late this morning and afternoon.

TONIGHT
Southeast winds 10 to 15 knots with gusts up to 20 knots. Lake waters choppy. A slight chance of showers and thunderstorms after midnight.

FRIDAY
Southeast winds 15 to 20 knots with gusts up to 25 knots. Lake waters rough. A chance of thunderstorms. A chance of showers in the morning, then showers in the afternoon.

FRIDAY NIGHT
Southeast winds 15 to 20 knots with gusts up to 25 knots. Lake waters rough. Showers. Thunderstorms likely, mainly in the evening.

SATURDAY
South winds 10 to 15 knots with gusts up to 20 knots. Lake waters choppy. A chance of thunderstorms. Showers likely, mainly in the morning.

SATURDAY NIGHT
South winds 10 to 15 knots. Lake waters choppy.

SUNDAY
South winds 10 to 15 knots. Lake waters choppy.

SUNDAY NIGHT
South winds 10 to 15 knots. Lake waters choppy.

MONDAY
Southwest winds 5 to 10 knots. Lake waters light chop.

MONDAY NIGHT
South winds 5 to 10 knots, becoming northeast after midnight. Lake waters light chop.

Winds and waves higher in and near thunderstorms.

---

GMZ435-272200
Vermilion and West Cote Blanche Bays
433 AM CDT Thu Mar 27 2025

TODAY
Southeast winds 5 to 10 knots. Bay waters light chop.

TONIGHT
Southeast winds 10 to 15 knots. Bay waters choppy.

FRIDAY
Southeast winds 15 to 20 knots with gusts up to 25 knots. Bay waters rough. A chance of showers and thunderstorms in the afternoon.

FRIDAY NIGHT
Southeast winds 15 to 20 knots with gusts up to 25 knots. Bay waters rough. Showers likely with a chance of thunderstorms in the evening, then showers likely with a slight chance of thunderstorms after midnight.

SATURDAY
Southeast winds 10 to 15 knots. Bay waters choppy. A chance of thunderstorms. Showers, mainly in the morning.

SATURDAY NIGHT
South winds around 10 knots. Bay waters light chop.

SUNDAY
South winds around 10 knots. Bay waters light chop.

SUNDAY NIGHT
South winds around 10 knots. Bay waters light chop.

MONDAY
Southwest winds 5 to 10 knots. Bay waters light chop. A slight chance of showers and thunderstorms in the morning.

MONDAY NIGHT
South winds 5 to 10 knots, becoming east after midnight. Bay waters light chop.

Winds and waves higher in and near thunderstorms.

---

GMZ436-272200
Atchafalaya and East Cote Blanche Bays
433 AM CDT Thu Mar 27 2025

TODAY
Southeast winds 5 to 10 knots. Bay waters light chop.

TONIGHT
Southeast winds around 10 knots. Bay waters light chop.

FRIDAY
Southeast winds 10 to 15 knots with gusts up to 20 knots. Bay waters choppy. A chance of showers with a slight chance of thunderstorms in the afternoon.

FRIDAY NIGHT
Southeast winds 10 to 15 knots with gusts up to 20 knots. Bay waters choppy. Showers likely. A chance of thunderstorms, mainly in the evening.

SATURDAY
Southeast winds 10 to 15 knots. Bay waters choppy. A chance of thunderstorms. Showers.

SATURDAY NIGHT
South winds around 10 knots. Bay waters light chop.

SUNDAY
South winds 5 to 10 knots. Bay waters light chop.

SUNDAY NIGHT
South winds 5 to 10 knots. Bay waters light chop.

MONDAY
Southwest winds 5 to 10 knots. Bay waters light chop. A slight chance of showers and thunderstorms in the morning.

MONDAY NIGHT
South winds around 5 knots, becoming east after midnight. Bay waters smooth.

Winds and waves higher in and near thunderstorms.

---

GMZ450-272200
Coastal waters from Cameron LA to High Island TX out 20 NM
433 AM CDT Thu Mar 27 2025

TODAY
East winds 5 to 10 knots, increasing to 10 to 15 knots with gusts up to 20 knots this afternoon. Seas 2 to 3 feet. Wave Detail: Southeast 3 feet at 5 seconds. A slight chance of showers this morning. A chance of showers early this afternoon, then a slight chance of showers late.

TONIGHT
Southeast winds 15 to 20 knots. Seas 2 to 4 feet. Wave Detail: Southeast 4 feet at 5 seconds. A slight chance of showers in the evening, then a chance of showers and thunderstorms after midnight.

FRIDAY
Southeast winds 15 to 20 knots. Seas 3 to 4 feet. Wave Detail: Southeast 4 feet at 6 seconds. A chance of thunderstorms. A chance of showers in the morning, then showers in the afternoon.

FRIDAY NIGHT
Southeast winds 15 to 20 knots. Seas 3 to 5 feet, occasionally to 6 feet. Wave Detail: Southeast 4 feet at 5 seconds and south 3 feet at 8 seconds. Showers with thunderstorms likely in the evening, then showers likely with a chance of thunderstorms after midnight.

SATURDAY
South winds 10 to 15 knots. Seas 2 to 4 feet. Wave Detail: South 4 feet at 8 seconds. A chance of showers and thunderstorms, mainly in the morning.

SATURDAY NIGHT
South winds 10 to 15 knots. Seas 2 to 3 feet. Wave Detail: Southeast 3 feet at 8 seconds and southeast 2 feet at 4 seconds.

SUNDAY
South winds around 10 knots. Seas 2 to 3 feet.

SUNDAY NIGHT
South winds around 10 knots. Seas around 2 feet.

MONDAY
South winds 5 to 10 knots. Seas around 2 feet.

MONDAY NIGHT
Southeast winds 5 to 10 knots, becoming northeast after midnight. Seas around 2 feet.

Winds and seas higher in and near thunderstorms.

---

GMZ452-272200
Coastal waters from Intracoastal City to Cameron LA out 20 NM
433 AM CDT Thu Mar 27 2025

TODAY
East winds 5 to 10 knots, increasing to 10 to 15 knots with gusts up to 20 knots late this morning and afternoon. Seas 2 to 3 feet. Wave Detail: Southeast 3 feet at 5 seconds. A slight chance of showers early this afternoon.

TONIGHT
Southeast winds 15 to 20 knots. Seas 2 to 4 feet. Wave Detail: Southeast 4 feet at 5 seconds.

FRIDAY
Southeast winds 15 to 20 knots with gusts up to 25 knots. Seas 3 to 5 feet, occasionally to 6 feet. Wave Detail: Southeast 5 feet at 5 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.

FRIDAY NIGHT
Southeast winds 15 to 20 knots with gusts up to 25 knots. Seas 4 to 6 feet, occasionally to 8 feet. Wave Detail: Southeast 5 feet at 5 seconds and south 2 feet at 8 seconds. A chance of thunderstorms. Showers.

SATURDAY
Southeast winds 15 to 20 knots, diminishing to 10 to 15 knots in the afternoon. Seas 3 to 5 feet, occasionally to 6 feet. Wave Detail: South 4 feet at 8 seconds. Showers likely with a chance of thunderstorms in the morning, then a chance of showers with a slight chance of thunderstorms in the afternoon.

SATURDAY NIGHT
Southeast winds 10 to 15 knots. Seas 2 to 4 feet. Wave Detail: South 3 feet at 4 seconds.

SUNDAY
South winds 10 to 15 knots. Seas 2 to 3 feet.

SUNDAY NIGHT
South winds 10 to 15 knots. Seas 2 to 3 feet.

MONDAY
Southwest winds 5 to 10 knots. Seas 2 to 3 feet.

MONDAY NIGHT
South winds 5 to 10 knots, becoming east after midnight. Seas around 2 feet.

Winds and seas higher in and near thunderstorms.

---

GMZ455-272200
Coastal waters from Lower Atchafalaya River to Intracoastal City LA out 20 NM
433 AM CDT Thu Mar 27 2025

TODAY
East winds 5 to 10 knots, increasing to 10 to 15 knots late. Seas around 2 feet. Wave Detail: Southeast 1 foot at 2 seconds.

TONIGHT
Southeast winds 10 to 15 knots with gusts up to 20 knots. Seas 2 to 3 feet. Wave Detail: Southeast 2 feet at 3 seconds.

FRIDAY
Southeast winds 15 to 20 knots. Seas 2 to 4 feet. Wave Detail: Southeast 2 feet at 3 seconds. A slight chance of showers in the morning, then showers likely with a chance of thunderstorms in the afternoon.

FRIDAY NIGHT
Southeast winds 15 to 20 knots. Seas 2 to 4 feet. Wave Detail: Southeast 2 feet at 3 seconds. Showers likely with a chance of thunderstorms.

SATURDAY
Southeast winds 10 to 15 knots. Seas 2 to 4 feet. Wave Detail: Southeast 2 feet at 3 seconds. Showers likely. A chance of thunderstorms, mainly in the morning.

SATURDAY NIGHT
South winds around 10 knots. Seas 2 to 3 feet. Wave Detail: South 2 feet at 3 seconds and south 2 feet at 8 seconds.

SUNDAY
South winds around 10 knots. Seas 2 to 3 feet.

SUNDAY NIGHT
South winds around 10 knots. Seas around 2 feet.

MONDAY
Southwest winds 5 to 10 knots. Seas around 2 feet. A slight chance of showers and thunderstorms in the morning.

MONDAY NIGHT
South winds around 5 knots, becoming east after midnight. Seas 1 to 2 feet.

Winds and seas higher in and near thunderstorms.

---

GMZ470-272200
Coastal waters from Cameron LA to High Island TX from 20 to 60 NM
433 AM CDT Thu Mar 27 2025

TODAY
East winds 10 to 15 knots with gusts up to 20 knots. Seas 2 to 3 feet. Wave Detail: Southeast 3 feet at 5 seconds. A slight chance of showers until late afternoon.

TONIGHT
Southeast winds around 15 knots with gusts up to 20 knots. Seas 3 to 4 feet. Wave Detail: Southeast 4 feet at 6 seconds. A slight chance of showers in the evening, then a chance of showers and thunderstorms after midnight.

FRIDAY
Southeast winds 15 to 20 knots with gusts up to 25 knots. Seas 4 to 6 feet, occasionally to 8 feet. Wave Detail: Southeast 6 feet at 7 seconds. A chance of showers and thunderstorms in the morning, then showers with thunderstorms likely in the afternoon.

FRIDAY NIGHT
Southeast winds 15 to 20 knots with gusts up to 25 knots. Seas 5 to 7 feet, occasionally to 9 feet. Wave Detail: Southeast 6 feet at 8 seconds. Showers with thunderstorms likely in the evening, then showers likely with a chance of thunderstorms after midnight.

SATURDAY
South winds 10 to 15 knots. Seas 4 to 6 feet, occasionally to 8 feet. Wave Detail: Southeast 6 feet at 8 seconds. A chance of showers and thunderstorms, mainly in the morning.

SATURDAY NIGHT
South winds 10 to 15 knots. Seas 3 to 5 feet, occasionally to 6 feet. Wave Detail: Southeast 5 feet at 8 seconds.

SUNDAY
South winds around 10 knots. Seas 3 to 5 feet, occasionally to 6 feet.

SUNDAY NIGHT
South winds 10 to 15 knots. Seas 3 to 4 feet.

MONDAY
South winds 5 to 10 knots. Seas 2 to 3 feet.

MONDAY NIGHT
Southeast winds 5 to 10 knots, becoming east after midnight. Seas 2 to 3 feet.

Winds and seas higher in and near thunderstorms.

---

GMZ472-272200
Coastal waters from Intracoastal City to Cameron LA from 20 to 60 NM
433 AM CDT Thu Mar 27 2025

TODAY
East winds around 10 knots, increasing to around 15 knots with gusts up to 20 knots this afternoon. Seas 2 to 4 feet. Wave Detail: Southeast 4 feet at 6 seconds. A slight chance of showers early this morning. A slight chance of showers early this afternoon.

TONIGHT
Southeast winds 15 to 20 knots. Seas 3 to 5 feet, occasionally to 6 feet. Wave Detail: Southeast 5 feet at 7 seconds. A slight chance of showers and thunderstorms after midnight.

FRIDAY
Southeast winds 15 to 20 knots. Seas 4 to 6 feet, occasionally to 8 feet. Wave Detail: Southeast 6 feet at 7 seconds. A chance of showers with a slight chance of thunderstorms in the morning, then showers with a chance of thunderstorms in the afternoon.

FRIDAY NIGHT
Southeast winds 15 to 20 knots with gusts up to 25 knots. Seas 5 to 7 feet, occasionally to 9 feet. Wave Detail: Southeast 7 feet at 8 seconds. A chance of thunderstorms. Showers, mainly in the evening.

SATURDAY
Southeast winds 10 to 15 knots. Seas 5 to 7 feet, occasionally to 9 feet. Wave Detail: Southeast 6 feet at 8 seconds. Showers likely with a chance of thunderstorms in the morning, then a chance of showers with a slight chance of thunderstorms in the afternoon.

SATURDAY NIGHT
Southeast winds 10 to 15 knots. Seas 4 to 5 feet, occasionally to 6 feet. Wave Detail: Southeast 5 feet at 8 seconds.

SUNDAY
South winds around 10 knots. Seas 3 to 5 feet, occasionally to 6 feet.

SUNDAY NIGHT
South winds 10 to 15 knots. Seas 3 to 4 feet.

MONDAY
South winds 5 to 10 knots. Seas 3 to 4 feet.

MONDAY NIGHT
Southeast winds 5 to 10 knots, becoming east after midnight. Seas 2 to 3 feet.

Winds and seas higher in and near thunderstorms.

---

GMZ475-272200
Coastal waters from Lower Atchafalaya River to Intracoastal City LA from 20 to 60 NM
433 AM CDT Thu Mar 27 2025

TODAY
East winds 10 to 15 knots. Seas 2 to 4 feet. Wave Detail: Southeast 4 feet at 6 seconds.

TONIGHT
Southeast winds 15 to 20 knots with gusts up to 25 knots. Seas 4 to 6 feet, occasionally to 8 feet. Wave Detail: Southeast 6 feet at 7 seconds.

FRIDAY
Southeast winds 15 to 20 knots with gusts up to 25 knots. Seas 5 to 8 feet, occasionally to 10 feet. Wave Detail: Southeast 7 feet at 7 seconds. A slight chance of showers in the morning, then showers likely with a chance of thunderstorms in the afternoon.

FRIDAY NIGHT
Southeast winds 15 to 20 knots with gusts up to 25 knots. Seas 5 to 8 feet, occasionally to 10 feet. Wave Detail: Southeast 7 feet at 8 seconds. A chance of thunderstorms. Showers likely, mainly in the evening.

SATURDAY
Southeast winds 15 to 20 knots, diminishing to 10 to 15 knots in the afternoon. Seas 5 to 7 feet, occasionally to 9 feet. Wave Detail: Southeast 7 feet at 8 seconds. Showers likely. A chance of thunderstorms, mainly in the morning.

SATURDAY NIGHT
South winds 10 to 15 knots. Seas 4 to 6 feet, occasionally to 8 feet. Wave Detail: Southeast 5 feet at 8 seconds.

SUNDAY
South winds 10 to 15 knots. Seas 4 to 6 feet, occasionally to 8 feet.

SUNDAY NIGHT
South winds 10 to 15 knots. Seas 3 to 4 feet.

MONDAY
South winds 5 to 10 knots. Seas 2 to 4 feet. A slight chance of showers and thunderstorms in the morning.

MONDAY NIGHT
South winds 5 to 10 knots, becoming southeast after midnight. Seas 2 to 3 feet.

Winds and seas higher in and near thunderstorms.