National Weather Service Marine Forecast FZUS54 KLCH

FZUS54 KLCH 120809
CWFLCH

Coastal Waters Forecast
National Weather Service Lake Charles LA
309 AM CDT Mon Oct 12 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.

GMZ400-122100
309 AM CDT Mon Oct 12 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 light to perhaps moderate onshore flow is expected through early Friday. A few showers and storms may also be possible across the coastal waters Monday and Tuesday.

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GMZ430-122100
Sabine Lake
309 AM CDT Mon Oct 12 2026

TODAY
Southeast winds 5 to 10 knots, increasing to 10 to 15 knots this afternoon. Lake waters choppy.

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

TUESDAY
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 chance of showers with a slight chance of thunderstorms.

TUESDAY NIGHT
Southeast winds 10 to 15 knots, becoming south 5 to 10 knots after midnight. Lake waters choppy. A chance of showers in the evening.

WEDNESDAY
Southeast winds 5 to 10 knots. Lake waters light chop.

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

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

THURSDAY NIGHT
Southeast winds around 5 knots, becoming east after midnight. Lake waters smooth.

FRIDAY
Northeast winds 5 to 10 knots, increasing to 10 to 15 knots in the afternoon. Lake waters choppy.

FRIDAY NIGHT
North winds 20 to 25 knots. Lake waters very rough.

Winds and waves higher in and near thunderstorms.

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GMZ432-122100
Calcasieu Lake
309 AM CDT Mon Oct 12 2026

TODAY
Southeast winds 10 to 15 knots with gusts up to 20 knots. Lake waters choppy.

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

TUESDAY
South winds 5 to 10 knots, increasing to 10 to 15 knots with gusts up to 20 knots in the afternoon. Lake waters choppy. A chance of showers with a slight chance of thunderstorms.

TUESDAY NIGHT
Southeast winds 10 to 15 knots with gusts up to 20 knots, becoming south 5 to 10 knots after midnight. Lake waters choppy. A slight chance of showers in the evening.

WEDNESDAY
Southeast winds 5 to 10 knots, increasing to 10 to 15 knots with gusts up to 20 knots in the afternoon. Lake waters choppy.

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

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

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

FRIDAY
Northeast winds 10 to 15 knots, increasing to 15 to 20 knots in the afternoon. Lake waters rough.

FRIDAY NIGHT
North winds 20 to 25 knots. Lake waters very rough.

Winds and waves higher in and near thunderstorms.

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GMZ435-122100
Vermilion and West Cote Blanche Bays
309 AM CDT Mon Oct 12 2026

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

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

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

TUESDAY NIGHT
Southeast winds 5 to 10 knots. Bay waters light chop.

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

WEDNESDAY NIGHT
Southeast winds 5 to 10 knots. Bay waters light chop.

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

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

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

FRIDAY NIGHT
North winds 25 to 30 knots. Bay waters extremely rough.

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GMZ436-122100
Atchafalaya and East Cote Blanche Bays
309 AM CDT Mon Oct 12 2026

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

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

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

TUESDAY NIGHT
Southeast winds 5 to 10 knots. Bay waters light chop.

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

WEDNESDAY NIGHT
Southeast winds 5 to 10 knots. Bay waters light chop.

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

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

FRIDAY
Northeast winds 5 to 10 knots. Bay waters light chop. A slight chance of showers in the afternoon.

FRIDAY NIGHT
North winds 20 to 25 knots. Bay waters very rough.

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GMZ450-122100
Coastal waters from Cameron LA to High Island TX out 20 NM
309 AM CDT Mon Oct 12 2026

TODAY
Southeast winds around 15 knots. Seas 2 to 3 feet. Wave Detail: Southeast 3 feet at 5 seconds. A slight chance of showers and thunderstorms late.

TONIGHT
Southeast winds around 15 knots with gusts up to 20 knots. Seas 2 to 3 feet. Wave Detail: Southeast 3 feet at 5 seconds.

TUESDAY
Southeast winds 10 to 15 knots. Seas 2 to 3 feet. Wave Detail: Southeast 3 feet at 5 seconds. A chance of showers with a slight chance of thunderstorms.

TUESDAY NIGHT
Southeast winds around 15 knots. Seas 2 to 3 feet. Wave Detail: Southeast 3 feet at 5 seconds.

WEDNESDAY
Southeast winds 10 to 15 knots. Seas 2 to 3 feet. Wave Detail: Southeast 3 feet at 5 seconds.

WEDNESDAY NIGHT
Southeast winds 10 to 15 knots. Seas 2 to 3 feet. Wave Detail: Southeast 3 feet at 5 seconds.

THURSDAY
Southeast winds 10 to 15 knots. Seas 2 to 3 feet.

THURSDAY NIGHT
East winds 5 to 10 knots. Seas around 2 feet.

FRIDAY
Northeast winds 15 to 20 knots, diminishing to 10 to 15 knots in the afternoon. Seas 2 to 3 feet.

FRIDAY NIGHT
Northeast winds 25 to 30 knots. Seas 4 to 6 feet, occasionally to 8 feet.

Winds and seas higher in and near thunderstorms.

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GMZ452-122100
Coastal waters from Intracoastal City to Cameron LA out 20 NM
309 AM CDT Mon Oct 12 2026

TODAY
Southeast winds 10 to 15 knots. Seas 2 to 3 feet. Wave Detail: Southeast 3 feet at 5 seconds.

TONIGHT
Southeast winds 10 to 15 knots with gusts up to 20 knots. Seas 2 to 3 feet. Wave Detail: Southeast 3 feet at 5 seconds.

TUESDAY
Southeast winds 10 to 15 knots. Seas 2 to 3 feet. Wave Detail: South 3 feet at 5 seconds. A slight chance of showers.

TUESDAY NIGHT
Southeast winds 10 to 15 knots. Seas 2 to 3 feet. Wave Detail: Southeast 3 feet at 5 seconds.

WEDNESDAY
Southeast winds 10 to 15 knots. Seas around 2 feet. Wave Detail: South 2 feet at 5 seconds.

WEDNESDAY NIGHT
Southeast winds 10 to 15 knots. Seas 2 to 3 feet. Wave Detail: Southeast 3 feet at 5 seconds.

THURSDAY
Southeast winds around 10 knots. Seas 2 to 3 feet.

THURSDAY NIGHT
East winds 5 to 10 knots. Seas around 2 feet.

FRIDAY
Northeast winds 10 to 15 knots. Seas around 2 feet.

FRIDAY NIGHT
Northeast winds 25 to 30 knots. Seas 2 to 4 feet, building to 4 to 6 feet, occasionally to 8 feet after midnight.

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GMZ455-122100
Coastal waters from Lower Atchafalaya River to Intracoastal City LA out 20 NM
309 AM CDT Mon Oct 12 2026

TODAY
Southeast winds around 10 knots. Seas around 2 feet. Wave Detail: Southeast 1 foot at 2 seconds.

TONIGHT
Southeast winds around 10 knots. Seas around 2 feet. Wave Detail: Southeast 1 foot at 3 seconds.

TUESDAY
Southeast winds 5 to 10 knots. Seas around 2 feet. Wave Detail: Southeast 1 foot at 2 seconds.

TUESDAY NIGHT
Southeast winds 5 to 10 knots. Seas around 2 feet. Wave Detail: Southeast 1 foot at 2 seconds.

WEDNESDAY
Southeast winds 5 to 10 knots. Seas 1 foot or less, then around 2 feet in the afternoon. Wave Detail: Southeast 1 foot at 2 seconds.

WEDNESDAY NIGHT
Southeast winds around 10 knots. Seas around 2 feet. Wave Detail: Southeast 2 feet at 5 seconds and southeast 1 foot at 2 seconds.

THURSDAY
East winds 5 to 10 knots. Seas around 2 feet.

THURSDAY NIGHT
East winds 5 to 10 knots. Seas 1 to 2 feet.

FRIDAY
Northeast winds 10 to 15 knots, diminishing to 5 to 10 knots in the afternoon. Seas 1 to 2 feet. A slight chance of showers.

FRIDAY NIGHT
Northeast winds 20 to 25 knots, becoming north 25 to 30 knots after midnight. Seas 2 to 4 feet.

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GMZ470-122100
Coastal waters from Cameron LA to High Island TX from 20 to 60 NM
309 AM CDT Mon Oct 12 2026

TODAY
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 and thunderstorms late.

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.

TUESDAY
Southeast winds around 15 knots. Seas around 3 feet. Wave Detail: Southeast 3 feet at 5 seconds. A slight chance of showers and thunderstorms.

TUESDAY NIGHT
Southeast winds around 15 knots with gusts up to 20 knots. Seas around 3 feet. Wave Detail: Southeast 3 feet at 5 seconds.

WEDNESDAY
Southeast winds 10 to 15 knots. Seas around 3 feet. Wave Detail: Southeast 3 feet at 5 seconds.

WEDNESDAY NIGHT
Southeast winds around 15 knots with gusts up to 20 knots. Seas around 3 feet. Wave Detail: Southeast 3 feet at 5 seconds.

THURSDAY
Southeast winds 10 to 15 knots. Seas 2 to 3 feet.

THURSDAY NIGHT
East winds 10 to 15 knots, diminishing to 5 to 10 knots after midnight. Seas 2 to 3 feet. A slight chance of showers after midnight.

FRIDAY
Northeast winds 15 to 20 knots. Seas 2 to 4 feet. A slight chance of showers. A slight chance of thunderstorms in the afternoon.

FRIDAY NIGHT
Northeast winds 20 to 25 knots, increasing to 25 to 30 knots after midnight. Seas 4 to 6 feet, occasionally to 8 feet, building to 7 to 10 feet, occasionally to 13 feet after midnight.

Winds and seas higher in and near thunderstorms.

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GMZ472-122100
Coastal waters from Intracoastal City to Cameron LA from 20 to 60 NM
309 AM CDT Mon Oct 12 2026

TODAY
Southeast winds around 15 knots with gusts up to 20 knots. Seas 3 to 4 feet. Wave Detail: Southeast 4 feet at 6 seconds.

TONIGHT
Southeast winds 10 to 15 knots with gusts up to 20 knots. Seas around 3 feet. Wave Detail: Southeast 3 feet at 6 seconds.

TUESDAY
Southeast winds 10 to 15 knots. Seas around 3 feet. Wave Detail: Southeast 3 feet at 5 seconds. A slight chance of showers. A slight chance of thunderstorms in the afternoon.

TUESDAY NIGHT
Southeast winds 10 to 15 knots with gusts up to 20 knots. Seas around 3 feet. Wave Detail: Southeast 3 feet at 5 seconds.

WEDNESDAY
Southeast winds 10 to 15 knots. Seas 2 to 3 feet. Wave Detail: Southeast 3 feet at 6 seconds.

WEDNESDAY NIGHT
Southeast winds 10 to 15 knots with gusts up to 20 knots. Seas around 3 feet. Wave Detail: Southeast 3 feet at 5 seconds.

THURSDAY
East winds 10 to 15 knots. Seas 2 to 3 feet.

THURSDAY NIGHT
East winds 10 to 15 knots, diminishing to 5 to 10 knots after midnight. Seas 2 to 3 feet. A slight chance of showers after midnight.

FRIDAY
Northeast winds 10 to 15 knots. Seas 2 to 3 feet. A slight chance of thunderstorms. A chance of showers, mainly in the morning.

FRIDAY NIGHT
Northeast winds 25 to 30 knots. Seas 3 to 5 feet, occasionally to 6 feet, building to 7 to 10 feet, occasionally to 13 feet after midnight.

Winds and seas higher in and near thunderstorms.

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GMZ475-122100
Coastal waters from Lower Atchafalaya River to Intracoastal City LA from 20 to 60 NM
309 AM CDT Mon Oct 12 2026

TODAY
Southeast winds 10 to 15 knots. Seas 2 to 3 feet. Wave Detail: Southeast 3 feet at 6 seconds.

TONIGHT
Southeast winds 10 to 15 knots. Seas 2 to 3 feet. Wave Detail: Southeast 3 feet at 6 seconds.

TUESDAY
Southeast winds around 10 knots. Seas 2 to 3 feet. Wave Detail: Southeast 3 feet at 6 seconds.

TUESDAY NIGHT
Southeast winds 10 to 15 knots. Seas 2 to 3 feet. Wave Detail: Southeast 3 feet at 6 seconds.

WEDNESDAY
Southeast winds 10 to 15 knots. Seas 2 to 3 feet. Wave Detail: Southeast 3 feet at 6 seconds.

WEDNESDAY NIGHT
Southeast winds 10 to 15 knots with gusts up to 20 knots. Seas 2 to 4 feet. Wave Detail: Southeast 4 feet at 6 seconds.

THURSDAY
East winds 10 to 15 knots. Seas 2 to 3 feet. A slight chance of showers in the morning.

THURSDAY NIGHT
East winds 10 to 15 knots, diminishing to 5 to 10 knots after midnight. Seas 2 to 3 feet. A slight chance of showers and thunderstorms after midnight.

FRIDAY
Northeast winds 10 to 15 knots. Seas 2 to 3 feet. A chance of showers with a slight chance of thunderstorms.

FRIDAY NIGHT
Northeast winds 20 to 25 knots, increasing to 25 to 30 knots after midnight. Seas 3 to 5 feet, occasionally to 6 feet, building to 6 to 9 feet, occasionally to 11 feet after midnight. A slight chance of showers in the evening.

Winds and seas higher in and near thunderstorms.