National Weather Service Marine Forecast FZUS54 KLCH

FZUS54 KLCH 162009
CWFLCH

Coastal Waters Forecast
National Weather Service Lake Charles LA
309 PM CDT Wed Sep 16 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.

GMZ400-170900
309 PM CDT Wed Sep 16 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...

A fairly tight pressure gradient will keep easterly winds elevated through Thursday. Winds will slowly decrease Friday into the weekend as high pressure moves off the Atlantic coast.

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GMZ430-170900
Sabine Lake
309 PM CDT Wed Sep 16 2026

TONIGHT
Southeast winds 5 to 10 knots, becoming east 10 to 15 knots after midnight. Lake waters choppy. A slight chance of showers this evening. A slight chance of showers and thunderstorms late.

THURSDAY
East winds 10 to 15 knots. Lake waters choppy. A slight chance of showers and thunderstorms.

THURSDAY NIGHT
Southeast winds 5 to 10 knots. Lake waters light chop.

FRIDAY
East winds 5 to 10 knots. Lake waters light chop.

FRIDAY NIGHT
Southeast winds around 5 knots. Lake waters smooth.

SATURDAY
Northeast winds around 5 knots, becoming southeast in the afternoon. Lake waters smooth.

SATURDAY NIGHT
South winds around 5 knots. Lake waters smooth.

SUNDAY
Northeast winds around 5 knots, becoming southeast in the afternoon. Lake waters smooth.

SUNDAY NIGHT
South winds around 5 knots. Lake waters smooth.

MONDAY
Northeast winds around 5 knots, becoming southeast in the afternoon. Lake waters smooth. A slight chance of showers and thunderstorms.

MONDAY NIGHT
South winds around 5 knots, becoming east after midnight. Lake waters smooth. A slight chance of showers and thunderstorms after midnight.

Winds and waves higher in and near thunderstorms.

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GMZ432-170900
Calcasieu Lake
309 PM CDT Wed Sep 16 2026

TONIGHT
Southeast winds 5 to 10 knots, becoming east 10 to 15 knots with gusts up to 20 knots after midnight. Lake waters choppy. A slight chance of showers and thunderstorms this evening. A slight chance of showers and thunderstorms late.

THURSDAY
East winds 10 to 15 knots. Lake waters choppy.

THURSDAY NIGHT
Southeast winds 5 to 10 knots. Lake waters light chop.

FRIDAY
East winds 5 to 10 knots. Lake waters light chop.

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

SATURDAY
Northeast winds around 5 knots, becoming southeast in the afternoon. Lake waters light chop.

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

SUNDAY
Northeast winds around 5 knots, becoming southeast in the afternoon. Lake waters light chop.

SUNDAY NIGHT
South winds 5 to 10 knots, diminishing to around 5 knots after midnight. Lake waters light chop.

MONDAY
Northeast winds around 5 knots, becoming southeast in the afternoon. Lake waters smooth. A slight chance of showers and thunderstorms.

MONDAY NIGHT
South winds around 5 knots, becoming east after midnight. Lake waters smooth. A slight chance of showers and thunderstorms after midnight.

Winds and waves higher in and near thunderstorms.

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GMZ435-170900
Vermilion and West Cote Blanche Bays
309 PM CDT Wed Sep 16 2026

SMALL CRAFT EXERCISE CAUTION IN EFFECT THROUGH THURSDAY EVENING

TONIGHT
East winds 10 to 15 knots, increasing to 15 to 20 knots late this evening, then diminishing to 10 to 15 knots after midnight. Bay waters rough. A slight chance of showers and thunderstorms after midnight.

THURSDAY
East winds 10 to 15 knots. Bay waters choppy.

THURSDAY NIGHT
East winds 10 to 15 knots. Bay waters choppy.

FRIDAY
East winds 5 to 10 knots. Bay waters light chop.

FRIDAY NIGHT
East winds 5 to 10 knots. Bay waters light chop.

SATURDAY
Northeast winds around 5 knots, becoming southeast in the afternoon. Bay waters light chop.

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

SUNDAY
Northeast winds around 5 knots, becoming southeast in the afternoon. Bay waters smooth. A slight chance of showers and thunderstorms in the afternoon.

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

MONDAY
Northeast winds around 5 knots, becoming southeast in the afternoon. Bay waters smooth. A slight chance of showers and thunderstorms in the morning, then a chance of showers and thunderstorms in the afternoon.

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

Winds and waves higher in and near thunderstorms.

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GMZ436-170900
Atchafalaya and East Cote Blanche Bays
309 PM CDT Wed Sep 16 2026

SMALL CRAFT EXERCISE CAUTION IN EFFECT THROUGH THURSDAY EVENING

TONIGHT
East winds 10 to 15 knots. Bay waters choppy. A slight chance of showers and thunderstorms until early morning.

THURSDAY
East winds 10 to 15 knots. Bay waters choppy.

THURSDAY NIGHT
East winds 10 to 15 knots, diminishing to 5 to 10 knots after midnight. Bay waters choppy.

FRIDAY
East winds 5 to 10 knots. Bay waters light chop.

FRIDAY NIGHT
East winds 5 to 10 knots, diminishing to around 5 knots after midnight. Bay waters light chop.

SATURDAY
Northeast winds around 5 knots, becoming southeast in the afternoon. Bay waters light chop.

SATURDAY NIGHT
Southeast winds around 5 knots. Bay waters smooth.

SUNDAY
Northeast winds around 5 knots, becoming southeast in the afternoon. Bay waters smooth. A slight chance of showers and thunderstorms in the afternoon.

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

MONDAY
Northeast winds around 5 knots, becoming southeast in the afternoon. Bay waters smooth. A slight chance of showers and thunderstorms in the morning, then a chance of showers and thunderstorms in the afternoon.

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

Winds and waves higher in and near thunderstorms.

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GMZ450-170900
Coastal waters from Cameron LA to High Island TX out 20 NM
309 PM CDT Wed Sep 16 2026

SMALL CRAFT ADVISORY IN EFFECT THROUGH THURSDAY EVENING

TONIGHT
East winds 10 to 15 knots, increasing to 15 to 20 knots late. Seas 2 to 4 feet. Wave Detail: Southeast 3 feet at 4 seconds. A slight chance of showers and thunderstorms this evening, then a chance of showers and thunderstorms after midnight.

THURSDAY
East winds 15 to 20 knots with gusts up to 25 knots. Seas 3 to 4 feet. Wave Detail: East 4 feet at 5 seconds. A chance of showers and thunderstorms, mainly in the morning.

THURSDAY NIGHT
East winds 10 to 15 knots with gusts up to 20 knots. Seas 2 to 3 feet. Wave Detail: Southeast 3 feet at 4 seconds.

FRIDAY
East winds 10 to 15 knots. Seas 2 to 3 feet. Wave Detail: East 3 feet at 4 seconds.

FRIDAY NIGHT
Southeast winds 5 to 10 knots. Seas 2 to 3 feet. Wave Detail: Southeast 2 feet at 5 seconds.

SATURDAY
East winds 5 to 10 knots. Seas around 2 feet. Wave Detail: Southeast 2 feet at 5 seconds.

SATURDAY NIGHT
Southeast winds 5 to 10 knots. Seas around 2 feet.

SUNDAY
Southeast winds 5 to 10 knots. Seas around 2 feet in the morning, then 1 foot or less. A slight chance of showers and thunderstorms in the morning.

SUNDAY NIGHT
Southeast winds 5 to 10 knots. Seas around 2 feet.

MONDAY
East winds around 5 knots. Seas 1 foot or less. A chance of showers and thunderstorms, mainly in the morning.

MONDAY NIGHT
Southeast winds 5 to 10 knots. Seas 1 foot or less. A slight chance of showers and thunderstorms after midnight.

Winds and seas higher in and near thunderstorms.

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GMZ452-170900
Coastal waters from Intracoastal City to Cameron LA out 20 NM
309 PM CDT Wed Sep 16 2026

SMALL CRAFT ADVISORY IN EFFECT THROUGH THURSDAY EVENING

TONIGHT
East winds 15 to 20 knots with gusts up to 25 knots. Seas 2 to 4 feet. Wave Detail: Southeast 3 feet at 4 seconds. A slight chance of thunderstorms this evening. A chance of showers. A chance of thunderstorms after midnight.

THURSDAY
East winds 15 to 20 knots with gusts up to 25 knots. Seas 2 to 4 feet. Wave Detail: East 3 feet at 5 seconds. A slight chance of showers and thunderstorms in the morning.

THURSDAY NIGHT
East winds 15 to 20 knots. Seas 2 to 4 feet. Wave Detail: Southeast 3 feet at 5 seconds.

FRIDAY
East winds 10 to 15 knots. Seas 2 to 3 feet. Wave Detail: East 3 feet at 4 seconds.

FRIDAY NIGHT
East winds 10 to 15 knots, becoming southeast 5 to 10 knots after midnight. Seas 2 to 3 feet. Wave Detail: Southeast 2 feet at 3 seconds and southeast 2 feet at 6 seconds.

SATURDAY
East winds 5 to 10 knots. Seas around 2 feet. Wave Detail: Southeast 2 feet at 6 seconds.

SATURDAY NIGHT
Southeast winds 5 to 10 knots. Seas around 2 feet.

SUNDAY
Southeast winds 5 to 10 knots. Seas around 2 feet in the morning, then 1 foot or less.

SUNDAY NIGHT
Southeast winds 5 to 10 knots. Seas 1 foot or less.

MONDAY
Northeast winds around 5 knots, becoming southeast in the afternoon. Seas 1 foot or less. A chance of showers and thunderstorms, mainly in the morning.

MONDAY NIGHT
Southeast winds around 5 knots. Seas 1 foot or less. A slight chance of showers and thunderstorms after midnight.

Winds and seas higher in and near thunderstorms.

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GMZ455-170900
Coastal waters from Lower Atchafalaya River to Intracoastal City LA out 20 NM
309 PM CDT Wed Sep 16 2026

SMALL CRAFT ADVISORY IN EFFECT THROUGH THURSDAY EVENING

TONIGHT
East winds 15 to 20 knots with gusts up to 25 knots. Seas 2 to 3 feet. Wave Detail: East 3 feet at 4 seconds. A chance of showers and thunderstorms.

THURSDAY
East winds 15 to 20 knots with gusts up to 25 knots. Seas 2 to 3 feet. Wave Detail: East 2 feet at 4 seconds.

THURSDAY NIGHT
East winds 15 to 20 knots, diminishing to 10 to 15 knots after midnight. Seas 2 to 3 feet. Wave Detail: East 2 feet at 4 seconds.

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

FRIDAY NIGHT
East winds 10 to 15 knots, diminishing to 5 to 10 knots after midnight. Seas 1 to 2 feet. Wave Detail: Southeast 1 foot at 3 seconds.

SATURDAY
East winds 5 to 10 knots. Seas 1 foot or less.

SATURDAY NIGHT
Southeast winds 5 to 10 knots. Seas 1 foot or less.

SUNDAY
East winds around 5 knots. Seas 1 foot or less.

SUNDAY NIGHT
Southeast winds around 5 knots. Seas 1 foot or less.

MONDAY
East winds around 5 knots. Seas 1 foot or less. A chance of showers and thunderstorms.

MONDAY NIGHT
Southeast winds around 5 knots. Seas 1 foot or less. A slight chance of showers and thunderstorms after midnight.

Winds and seas higher in and near thunderstorms.

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GMZ470-170900
Coastal waters from Cameron LA to High Island TX from 20 to 60 NM
309 PM CDT Wed Sep 16 2026

SMALL CRAFT ADVISORY IN EFFECT THROUGH THURSDAY EVENING

TONIGHT
East winds 15 to 20 knots with gusts up to 25 knots. Seas 2 to 4 feet. Wave Detail: East 4 feet at 6 seconds. A chance of showers with a slight chance of thunderstorms this evening, then showers likely with a chance of thunderstorms after midnight.

THURSDAY
East winds 15 to 20 knots with gusts up to 25 knots. Seas 4 to 6 feet, occasionally to 8 feet. Wave Detail: East 5 feet at 6 seconds. A chance of thunderstorms. Showers likely, mainly in the morning.

THURSDAY NIGHT
East winds 15 to 20 knots with gusts up to 25 knots. Seas 3 to 5 feet, occasionally to 6 feet. Wave Detail: East 5 feet at 6 seconds.

FRIDAY
East winds around 15 knots with gusts up to 20 knots. Seas 3 to 5 feet, occasionally to 6 feet. Wave Detail: East 4 feet at 7 seconds.

FRIDAY NIGHT
East winds 10 to 15 knots with gusts up to 20 knots. Seas 2 to 4 feet. Wave Detail: East 4 feet at 7 seconds.

SATURDAY
East winds 5 to 10 knots. Seas 2 to 3 feet. Wave Detail: Southeast 3 feet at 7 seconds.

SATURDAY NIGHT
Southeast winds 5 to 10 knots. Seas 2 to 3 feet. A slight chance of showers after midnight.

SUNDAY
Southeast winds 5 to 10 knots. Seas around 2 feet.

SUNDAY NIGHT
Southeast winds 5 to 10 knots. Seas around 2 feet.

MONDAY
East winds around 5 knots. Seas around 2 feet in the morning, then 1 foot or less. A chance of showers and thunderstorms, mainly in the morning.

MONDAY NIGHT
Southeast winds 5 to 10 knots. Seas 1 foot or less. A slight chance of showers and thunderstorms.

Winds and seas higher in and near thunderstorms.

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GMZ472-170900
Coastal waters from Intracoastal City to Cameron LA from 20 to 60 NM
309 PM CDT Wed Sep 16 2026

SMALL CRAFT ADVISORY IN EFFECT THROUGH THURSDAY EVENING

TONIGHT
East winds 15 to 20 knots with gusts up to 25 knots. Seas 3 to 5 feet, occasionally to 6 feet. Wave Detail: East 4 feet at 5 seconds. A chance of showers with a slight chance of thunderstorms this evening, then showers likely with a chance of thunderstorms after midnight.

THURSDAY
East winds 15 to 20 knots with gusts up to 25 knots. Seas 4 to 6 feet, occasionally to 8 feet. Wave Detail: East 5 feet at 6 seconds. A chance of showers and thunderstorms in the morning.

THURSDAY NIGHT
East winds 15 to 20 knots with gusts up to 25 knots. Seas 5 to 7 feet, occasionally to 9 feet. Wave Detail: East 6 feet at 6 seconds.

FRIDAY
East 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: East 5 feet at 7 seconds.

FRIDAY NIGHT
East winds 10 to 15 knots with gusts up to 20 knots. Seas 3 to 4 feet. Wave Detail: Southeast 4 feet at 7 seconds.

SATURDAY
East winds around 10 knots. Seas 2 to 3 feet. Wave Detail: Southeast 3 feet at 7 seconds.

SATURDAY NIGHT
Southeast winds 5 to 10 knots. Seas 2 to 3 feet.

SUNDAY
East winds around 5 knots. Seas around 2 feet. A slight chance of showers and thunderstorms in the morning.

SUNDAY NIGHT
Southeast winds 5 to 10 knots. Seas around 2 feet.

MONDAY
East winds around 5 knots. Seas 1 foot or less. A chance of showers and thunderstorms, mainly in the morning.

MONDAY NIGHT
Southeast winds around 5 knots. Seas 1 foot or less. A slight chance of showers and thunderstorms after midnight.

Winds and seas higher in and near thunderstorms.

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GMZ475-170900
Coastal waters from Lower Atchafalaya River to Intracoastal City LA from 20 to 60 NM
309 PM CDT Wed Sep 16 2026

SMALL CRAFT ADVISORY IN EFFECT THROUGH THURSDAY EVENING

TONIGHT
East winds around 20 knots with gusts up to 25 knots. Seas 4 to 6 feet, occasionally to 8 feet. Wave Detail: East 6 feet at 6 seconds. A chance of showers this evening. A chance of thunderstorms. Showers likely after midnight.

THURSDAY
East winds 20 to 25 knots. Seas 4 to 6 feet, occasionally to 8 feet. Wave Detail: East 6 feet at 6 seconds. A slight chance of showers and thunderstorms in the morning.

THURSDAY NIGHT
East winds 20 to 25 knots with gusts up to 30 knots. Seas 5 to 7 feet, occasionally to 9 feet. Wave Detail: East 7 feet at 7 seconds.

FRIDAY
East winds 15 to 20 knots. Seas 4 to 6 feet, occasionally to 8 feet. Wave Detail: East 5 feet at 7 seconds.

FRIDAY NIGHT
East winds 15 to 20 knots, diminishing to 10 to 15 knots after midnight. Seas 3 to 5 feet, occasionally to 6 feet. Wave Detail: East 5 feet at 7 seconds.

SATURDAY
East winds 5 to 10 knots. Seas 2 to 3 feet. Wave Detail: Southeast 3 feet at 7 seconds.

SATURDAY NIGHT
Southeast winds 5 to 10 knots. Seas 2 to 3 feet.

SUNDAY
East winds around 5 knots. Seas around 2 feet. A slight chance of showers and thunderstorms in the morning.

SUNDAY NIGHT
East winds around 5 knots. Seas around 2 feet in the evening, then 1 foot or less.

MONDAY
Northeast winds around 5 knots. Seas 1 foot or less. A chance of showers and thunderstorms, mainly in the morning.

MONDAY NIGHT
East winds around 5 knots. Seas 1 foot or less. A slight chance of showers and thunderstorms after midnight.

Winds and seas higher in and near thunderstorms.