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FZUS54 KLCH 120915
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Coastal Waters Forecast
National Weather Service Lake Charles LA
415 AM CDT Wed Mar 12 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.

GMZ400-122130-
415 AM CDT Wed Mar 12 2025

.SYNOPSIS...

Surface high pressure over the eastern Gulf will maintain an
onshore flow through the remainder of the week. The arrival of
moister low-level air over slightly cooler shelf waters will lead
to another round of marine fog developing tonight, primarily west
of Marsh Island. Winds will strengthen for Friday as strong low
pressure forms east of the Rockies, significantly tightening the
gradient over the region.


$$

GMZ430-122130-
Sabine Lake-
415 AM CDT Wed Mar 12 2025

.TODAY...South winds 5 to 10 knots, increasing to 10 to 15 knots
with gusts up to 20 knots late this morning and afternoon. Lake
waters choppy. Patchy fog early this morning.
.TONIGHT...South winds 10 to 15 knots. Lake waters choppy.
.THURSDAY...Southwest winds around 10 knots. Lake waters light
chop.
.THURSDAY NIGHT...South winds 10 to 15 knots. Lake waters choppy.
.FRIDAY...South winds 15 to 20 knots with gusts up to 25 knots.
Lake waters rough.
.FRIDAY NIGHT...South winds 10 to 15 knots with gusts up to
20 knots, diminishing to 5 to 10 knots after midnight. Lake
waters choppy.
.SATURDAY...Southwest winds 5 to 10 knots. Lake waters light
chop. A slight chance of showers and thunderstorms in the
morning.
.SATURDAY NIGHT...West winds 5 to 10 knots, becoming northwest
after midnight. Lake waters light chop.
.SUNDAY...Northwest winds 5 to 10 knots, increasing to 10 to
15 knots in the afternoon. Lake waters choppy.
.SUNDAY NIGHT...North winds 5 to 10 knots. Lake waters light
chop.

Winds and waves higher in and near thunderstorms.

$$

GMZ432-122130-
Calcasieu Lake-
415 AM CDT Wed Mar 12 2025

.TODAY...South winds 5 to 10 knots, increasing to 10 to 15 knots
with gusts up to 20 knots late this morning and afternoon. Lake
waters choppy. Patchy fog early this morning.
.TONIGHT...South winds 10 to 15 knots. Lake waters choppy.
.THURSDAY...Southwest winds 10 to 15 knots. Lake waters choppy.
.THURSDAY NIGHT...South winds 10 to 15 knots. Lake waters choppy.
.FRIDAY...South winds 15 to 20 knots with gusts up to 25 knots.
Lake waters rough. A slight chance of showers in the afternoon.
.FRIDAY NIGHT...South winds 15 to 20 knots, diminishing to 10 to
15 knots after midnight. Lake waters rough.
.SATURDAY...Southwest winds 5 to 10 knots, increasing to 10 to
15 knots in the afternoon. Lake waters choppy. A chance of
showers and thunderstorms in the morning.
.SATURDAY NIGHT...West winds 10 to 15 knots, becoming northwest
5 to 10 knots after midnight. Lake waters choppy.
.SUNDAY...Northwest winds 10 to 15 knots. Lake waters choppy.
.SUNDAY NIGHT...North winds 10 to 15 knots. Lake waters choppy.

Winds and waves higher in and near thunderstorms.

$$

GMZ435-122130-
Vermilion and West Cote Blanche Bays-
415 AM CDT Wed Mar 12 2025

.TODAY...South winds 5 to 10 knots. Bay waters light chop.
.TONIGHT...South winds 5 to 10 knots. Bay waters light chop.
.THURSDAY...Southwest winds around 10 knots. Bay waters light
chop.
.THURSDAY NIGHT...South winds 5 to 10 knots. Bay waters light
chop.
.FRIDAY...South winds 10 to 15 knots with gusts up to 20 knots.
Bay waters choppy.
.FRIDAY NIGHT...South winds 10 to 15 knots. Bay waters choppy.
.SATURDAY...South winds 10 to 15 knots. Bay waters choppy. A
chance of showers and thunderstorms.
.SATURDAY NIGHT...Southwest winds 10 to 15 knots, becoming west
5 to 10 knots after midnight. Bay waters choppy.
.SUNDAY...Northwest winds 5 to 10 knots. Bay waters light chop.
.SUNDAY NIGHT...North winds around 10 knots. Bay waters light
chop.

Winds and waves higher in and near thunderstorms.

$$

GMZ436-122130-
Atchafalaya and East Cote Blanche Bays-
415 AM CDT Wed Mar 12 2025

.TODAY...South winds 5 to 10 knots. Bay waters light chop.
.TONIGHT...South winds 5 to 10 knots. Bay waters light chop.
.THURSDAY...Southwest winds 5 to 10 knots. Bay waters light chop.
.THURSDAY NIGHT...South winds 5 to 10 knots. Bay waters light
chop.
.FRIDAY...South winds 10 to 15 knots. Bay waters choppy.
.FRIDAY NIGHT...South winds 10 to 15 knots. Bay waters choppy.
.SATURDAY...South winds 10 to 15 knots. Bay waters choppy. A
chance of showers and thunderstorms.
.SATURDAY NIGHT...West winds 5 to 10 knots. Bay waters light
chop.
.SUNDAY...Northwest winds 5 to 10 knots. Bay waters light chop.
.SUNDAY NIGHT...North winds around 10 knots. Bay waters light
chop.

Winds and waves higher in and near thunderstorms.

$$

GMZ450-122130-
Coastal waters from Cameron LA to High Island TX out 20 NM-
415 AM CDT Wed Mar 12 2025

.TODAY...South winds 10 to 15 knots. Seas around 2 feet. Wave
Detail: South 2 feet at 4 seconds.
.TONIGHT...South winds 10 to 15 knots. Seas 2 to 3 feet. Wave
Detail: South 3 feet at 4 seconds.
.THURSDAY...Southwest winds 10 to 15 knots. Seas around 2 feet.
Wave Detail: Southwest 2 feet at 5 seconds.
.THURSDAY NIGHT...South winds 10 to 15 knots. Seas around 2 feet.
Wave Detail: South 2 feet at 5 seconds.
.FRIDAY...South winds around 15 knots with gusts up to 20 knots.
Seas 2 to 4 feet. Wave Detail: South 3 feet at 4 seconds.
.FRIDAY NIGHT...South winds 10 to 15 knots. Seas 2 to 3 feet.
Wave Detail: South 3 feet at 5 seconds.
.SATURDAY...Southwest winds 5 to 10 knots, becoming west 10 to
15 knots in the afternoon. Seas 2 to 3 feet. A slight chance of
showers and thunderstorms in the morning.
.SATURDAY NIGHT...West winds 10 to 15 knots, becoming northwest
after midnight. Seas 2 to 3 feet.
.SUNDAY...Northwest winds 10 to 15 knots. Seas 2 to 3 feet.
.SUNDAY NIGHT...North winds 10 to 15 knots. Seas 2 to 3 feet.

Winds and seas higher in and near thunderstorms.

$$

GMZ452-122130-
Coastal waters from Intracoastal City to Cameron LA out 20 NM-
415 AM CDT Wed Mar 12 2025

.TODAY...South winds 10 to 15 knots. Seas around 2 feet. Wave
Detail: South 2 feet at 4 seconds.
.TONIGHT...South winds 10 to 15 knots. Seas 2 to 3 feet. Wave
Detail: South 3 feet at 5 seconds.
.THURSDAY...Southwest winds 10 to 15 knots. Seas 2 to 3 feet.
Wave Detail: Southwest 3 feet at 5 seconds.
.THURSDAY NIGHT...South winds 10 to 15 knots. Seas 2 to 3 feet.
Wave Detail: Southwest 2 feet at 6 seconds.
.FRIDAY...South winds 10 to 15 knots, increasing to 15 to
20 knots in the afternoon. Seas 2 to 4 feet. Wave Detail: South
4 feet at 5 seconds.
.FRIDAY NIGHT...South winds 15 to 20 knots, diminishing to 10 to
15 knots after midnight. Seas 2 to 4 feet. Wave Detail: South
4 feet at 6 seconds.
.SATURDAY...Southwest winds 10 to 15 knots. Seas 2 to 4 feet. A
chance of showers and thunderstorms in the morning.
.SATURDAY NIGHT...West winds 10 to 15 knots, becoming northwest
after midnight. Seas 2 to 4 feet.
.SUNDAY...Northwest winds 10 to 15 knots. Seas 2 to 3 feet.
.SUNDAY NIGHT...North winds 10 to 15 knots. Seas 2 to 3 feet.

Winds and seas higher in and near thunderstorms.

$$

GMZ455-122130-
Coastal waters from Lower Atchafalaya River to Intracoastal City
LA out 20 NM-
415 AM CDT Wed Mar 12 2025

.TODAY...South winds 5 to 10 knots. Seas 1 foot or less, then
around 2 feet this afternoon. Wave Detail: South 1 foot at
4 seconds.
.TONIGHT...South winds 5 to 10 knots. Seas around 2 feet. Wave
Detail: South 1 foot at 4 seconds.
.THURSDAY...Southwest winds 5 to 10 knots. Seas around 2 feet.
Wave Detail: Southwest 2 feet at 4 seconds.
.THURSDAY NIGHT...South winds 5 to 10 knots. Seas around 2 feet.
Wave Detail: Southwest 2 feet at 6 seconds.
.FRIDAY...South winds 10 to 15 knots. Seas 2 to 3 feet. Wave
Detail: South 3 feet at 4 seconds.
.FRIDAY NIGHT...South winds 10 to 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. A
chance of showers and thunderstorms.
.SATURDAY NIGHT...Southwest winds 10 to 15 knots, becoming west
5 to 10 knots after midnight. Seas 2 to 3 feet.
.SUNDAY...Northwest winds around 10 knots. Seas 2 to 3 feet.
.SUNDAY NIGHT...North winds 10 to 15 knots. Seas 2 to 3 feet.

Winds and seas higher in and near thunderstorms.

$$

GMZ470-122130-
Coastal waters from Cameron LA to High Island TX from 20 to 60 NM-
415 AM CDT Wed Mar 12 2025

.TODAY...South winds around 10 knots. Seas 2 to 3 feet. Wave
Detail: South 3 feet at 5 seconds.
.TONIGHT...South winds 10 to 15 knots with gusts up to 20 knots.
Seas 2 to 3 feet. Wave Detail: South 3 feet at 5 seconds.
.THURSDAY...Southwest winds around 10 knots. Seas 2 to 3 feet.
Wave Detail: Southwest 3 feet at 6 seconds.
.THURSDAY NIGHT...South winds 10 to 15 knots. Seas 2 to 3 feet.
Wave Detail: Southwest 3 feet at 6 seconds.
.FRIDAY...South winds 15 to 20 knots. Seas 3 to 4 feet. Wave
Detail: South 4 feet at 5 seconds.
.FRIDAY NIGHT...South winds 10 to 15 knots with gusts up to
20 knots. Seas 3 to 4 feet. Wave Detail: South 4 feet at
6 seconds.
.SATURDAY...Southwest winds 5 to 10 knots, becoming west 10 to
15 knots in the afternoon. Seas 3 to 5 feet, occasionally to
6 feet. A slight chance of showers and thunderstorms in the
morning.
.SATURDAY NIGHT...West winds around 10 knots, becoming northwest
after midnight. Seas 3 to 5 feet, occasionally to 6 feet.
.SUNDAY...North winds 10 to 15 knots. Seas 3 to 5 feet,
occasionally to 6 feet.
.SUNDAY NIGHT...North winds around 15 knots. Seas 3 to 4 feet.

Winds and seas higher in and near thunderstorms.

$$

GMZ472-122130-
Coastal waters from Intracoastal City to Cameron LA from 20 to
60 NM-
415 AM CDT Wed Mar 12 2025

.TODAY...South winds 10 to 15 knots. Seas 2 to 3 feet. Wave
Detail: Southwest 2 feet at 5 seconds.
.TONIGHT...South winds 10 to 15 knots. Seas 2 to 3 feet. Wave
Detail: South 3 feet at 5 seconds.
.THURSDAY...Southwest winds around 10 knots. Seas around 3 feet.
Wave Detail: Southwest 3 feet at 6 seconds.
.THURSDAY NIGHT...South winds 10 to 15 knots. Seas 2 to 3 feet.
Wave Detail: South 3 feet at 6 seconds.
.FRIDAY...South winds 10 to 15 knots, increasing to 15 to
20 knots in the afternoon. Seas 3 to 5 feet, occasionally to
6 feet. Wave Detail: South 4 feet at 6 seconds.
.FRIDAY NIGHT...South winds around 15 knots with gusts up to
20 knots. Seas 4 to 5 feet, occasionally to 6 feet. Wave Detail:
South 4 feet at 6 seconds.
.SATURDAY...Southwest winds 10 to 15 knots. Seas 4 to 6 feet,
occasionally to 8 feet. A slight chance of showers and
thunderstorms.
.SATURDAY NIGHT...West winds 10 to 15 knots, becoming northwest
after midnight. Seas 4 to 6 feet, occasionally to 8 feet.
.SUNDAY...Northwest winds 10 to 15 knots. Seas 4 to 6 feet,
occasionally to 8 feet.
.SUNDAY NIGHT...North winds around 15 knots. Seas 4 to 5 feet,
occasionally to 6 feet.

Winds and seas higher in and near thunderstorms.

$$

GMZ475-122130-
Coastal waters from Lower Atchafalaya River to Intracoastal City
LA from 20 to 60 NM-
415 AM CDT Wed Mar 12 2025

.TODAY...South winds 5 to 10 knots. Seas around 2 feet. Wave
Detail: Southwest 2 feet at 4 seconds.
.TONIGHT...South winds 10 to 15 knots. Seas 2 to 3 feet. Wave
Detail: Southwest 3 feet at 5 seconds.
.THURSDAY...Southwest winds 10 to 15 knots. Seas 2 to 3 feet.
Wave Detail: South 3 feet at 6 seconds.
.THURSDAY NIGHT...South winds 10 to 15 knots. Seas 2 to 3 feet.
Wave Detail: South 3 feet at 6 seconds.
.FRIDAY...South winds 10 to 15 knots, increasing to 15 to
20 knots in the afternoon. Seas 2 to 3 feet, building to 3 to
5 feet, occasionally to 6 feet in the afternoon. Wave Detail:
South 3 feet at 5 seconds, becoming south 5 feet at 6 seconds.
.FRIDAY NIGHT...South winds 15 to 20 knots with gusts up to
25 knots. Seas 4 to 6 feet, occasionally to 8 feet. Wave Detail:
South 6 feet at 6 seconds.
.SATURDAY...South winds 15 to 20 knots. Seas 5 to 8 feet,
occasionally to 10 feet. A chance of showers and thunderstorms.
.SATURDAY NIGHT...West winds 10 to 15 knots. Seas 5 to 8 feet,
occasionally to 10 feet.
.SUNDAY...Northwest winds 10 to 15 knots. Seas 4 to 6 feet,
occasionally to 8 feet.
.SUNDAY NIGHT...North winds 15 to 20 knots. Seas 4 to 6 feet,
occasionally to 8 feet.

Winds and seas higher in and near thunderstorms.

$$

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