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FZUS54 KLCH 071800
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Coastal Waters Forecast
National Weather Service Lake Charles LA
1200 PM CST Sun Dec 7 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.

GMZ400-080700-
1200 PM CST Sun Dec 7 2025

.Synopsis for Lower Atchafalaya River LA to High Island TX out
60 NM including Sabine and Calcasieu Lakes and Vermilion and Cote
Blanche Bays...

Dense fog lasted longer this morning than expected, but an
approaching cold front will remove that threat tonight. The front
may cause a few scattered showers, but the main impact will be an
increase in winds, with offshore winds going above 20 knots after
midnight tonight with a decent chance (40%) for sustained winds to
be above 30 knots but a very high probability (>90%) for gusts
over 30 knots. A Small Craft Advisory is already in place starting
at 00Z this evening, but the timing may be moved up if the front
is quicker than expected.

$$

GMZ430-080700-
Sabine Lake-
1200 PM CST Sun Dec 7 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM 6 PM CST THIS EVENING
THROUGH LATE TONIGHT...
...SMALL CRAFT EXERCISE CAUTION IN EFFECT FROM MONDAY MORNING
THROUGH MONDAY AFTERNOON...

.TONIGHT...North winds 15 to 20 knots with gusts up to 25 knots.
Lake waters rough.
.MONDAY...North winds 15 to 20 knots, diminishing to around
10 knots in the afternoon. Lake waters rough.
.MONDAY NIGHT...Northeast winds 5 to 10 knots. Lake waters light
chop.
.TUESDAY...East winds around 5 knots, becoming south in the
afternoon. Lake waters smooth.
.TUESDAY NIGHT...South winds 5 to 10 knots. Lake waters light
chop.
.WEDNESDAY...Southwest winds 5 to 10 knots. Lake waters light
chop.
.WEDNESDAY NIGHT...South winds around 10 knots. Lake waters light
chop.
.THURSDAY...Southwest winds 10 to 15 knots. Lake waters choppy.
.THURSDAY NIGHT...Southwest winds around 10 knots, becoming
northwest after midnight. Lake waters light chop.
.FRIDAY...North winds 10 to 15 knots. Lake waters choppy.
.FRIDAY NIGHT...Northeast winds 15 to 20 knots, increasing to
20 to 25 knots after midnight. Lake waters very rough.

$$

GMZ432-080700-
Calcasieu Lake-
1200 PM CST Sun Dec 7 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM 6 PM CST THIS EVENING
THROUGH LATE TONIGHT...
...SMALL CRAFT EXERCISE CAUTION IN EFFECT FROM MONDAY MORNING
THROUGH MONDAY AFTERNOON...

.TONIGHT...Northwest winds 15 to 20 knots, becoming north 20 to
25 knots late this evening and overnight. Lake waters very rough.
A chance of showers early this evening.
.MONDAY...North winds 15 to 20 knots, diminishing to 10 to
15 knots in the afternoon. Lake waters rough.
.MONDAY NIGHT...Northeast winds 10 to 15 knots, diminishing to
5 to 10 knots after midnight. Lake waters choppy.
.TUESDAY...East winds 5 to 10 knots, becoming south in the
afternoon. Lake waters light chop.
.TUESDAY NIGHT...South winds 5 to 10 knots. Lake waters light
chop.
.WEDNESDAY...Southwest 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...South winds 10 to 15 knots. Lake waters
choppy.
.THURSDAY...Southwest winds 10 to 15 knots, increasing to 15 to
20 knots in the afternoon. Lake waters rough.
.THURSDAY NIGHT...Southwest winds around 10 knots, becoming
northwest after midnight. Lake waters choppy.
.FRIDAY...North winds 10 to 15 knots, increasing to 15 to
20 knots in the afternoon. Lake waters rough. A chance of
sprinkles in the morning.
.FRIDAY NIGHT...Northeast winds 20 to 25 knots. Lake waters very
rough.

$$

GMZ435-080700-
Vermilion and West Cote Blanche Bays-
1200 PM CST Sun Dec 7 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM 9 PM CST THIS EVENING
THROUGH LATE TONIGHT...
...SMALL CRAFT EXERCISE CAUTION IN EFFECT FROM MONDAY MORNING
THROUGH MONDAY AFTERNOON...

.TONIGHT...South winds 5 to 10 knots, becoming northwest 15 to
20 knots late this evening, then becoming north 20 to 25 knots
after midnight. Bay waters very rough. A chance of showers this
evening.
.MONDAY...North winds 20 to 25 knots, diminishing to 15 to
20 knots in the afternoon. Bay waters very rough.
.MONDAY NIGHT...North winds 10 to 15 knots, becoming northeast
5 to 10 knots after midnight. Bay waters choppy.
.TUESDAY...Northeast winds 5 to 10 knots, becoming southeast in
the afternoon. Bay waters light chop.
.TUESDAY NIGHT...South winds around 5 knots, increasing to 5 to
10 knots after midnight. Bay waters light chop.
.WEDNESDAY...Southwest winds 5 to 10 knots. Bay waters light
chop.
.WEDNESDAY NIGHT...South winds 5 to 10 knots. Bay waters light
chop. A chance of sprinkles.
.THURSDAY...Southwest winds 10 to 15 knots. Bay waters choppy.
.THURSDAY NIGHT...Southwest winds 5 to 10 knots, becoming west
after midnight. Bay waters light chop. A slight chance of showers
in the evening, then a chance of sprinkles with a slight chance
of thunderstorms after midnight.
.FRIDAY...North winds 10 to 15 knots, increasing to 15 to
20 knots in the afternoon. Bay waters rough. A chance of
sprinkles.
.FRIDAY NIGHT...North winds 20 to 25 knots. Bay waters very
rough.

Winds and waves higher in and near thunderstorms.

$$

GMZ436-080700-
Atchafalaya and East Cote Blanche Bays-
1200 PM CST Sun Dec 7 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM 9 PM CST THIS EVENING
THROUGH LATE TONIGHT...
...SMALL CRAFT EXERCISE CAUTION IN EFFECT FROM MONDAY MORNING
THROUGH MONDAY AFTERNOON...

.TONIGHT...Southeast winds around 5 knots, becoming northwest
10 to 15 knots late this evening, then becoming north 15 to
20 knots with gusts up to 25 knots after midnight. Bay waters
rough. A chance of showers early this evening, then showers
likely late this evening. A slight chance of showers after
midnight.
.MONDAY...North winds 15 to 20 knots, diminishing to 10 to
15 knots in the afternoon. Bay waters rough.
.MONDAY NIGHT...North winds 10 to 15 knots, becoming northeast
5 to 10 knots after midnight. Bay waters choppy.
.TUESDAY...Northeast winds 5 to 10 knots, becoming south in the
afternoon. Bay waters light chop.
.TUESDAY NIGHT...South winds around 5 knots. Bay waters smooth.
.WEDNESDAY...Southwest winds 5 to 10 knots. Bay waters light
chop.
.WEDNESDAY NIGHT...South winds around 5 knots. Bay waters smooth.
A chance of sprinkles after midnight.
.THURSDAY...South winds 5 to 10 knots. Bay waters light chop. A
chance of sprinkles in the morning.
.THURSDAY NIGHT...Southwest winds 5 to 10 knots. Bay waters light
chop. A slight chance of showers in the evening, then a chance of
showers with a slight chance of thunderstorms after midnight.
.FRIDAY...North winds 5 to 10 knots, increasing to 10 to 15 knots
in the afternoon. Bay waters choppy. A chance of showers in the
morning, then a chance of sprinkles in the afternoon.
.FRIDAY NIGHT...North winds 10 to 15 knots, becoming northeast
15 to 20 knots after midnight. Bay waters rough.

Winds and waves higher in and near thunderstorms.

$$

GMZ450-080700-
Coastal waters from Cameron LA to High Island TX out 20 NM-
1200 PM CST Sun Dec 7 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM 6 PM CST THIS EVENING
THROUGH MONDAY MORNING...
...SMALL CRAFT EXERCISE CAUTION IN EFFECT MONDAY AFTERNOON...

.TONIGHT...Northwest winds 15 to 20 knots, becoming north 20 to
25 knots late this evening and overnight. Seas 2 to 4 feet. Wave
Detail: North 4 feet at 4 seconds. A slight chance of showers
early this evening.
.MONDAY...North winds 15 to 20 knots, diminishing to 10 to
15 knots in the afternoon. Seas 2 to 4 feet. Wave Detail: North
3 feet at 4 seconds.
.MONDAY NIGHT...Northeast winds 10 to 15 knots. Seas around
2 feet. Wave Detail: Northeast 2 feet at 4 seconds.
.TUESDAY...East winds 5 to 10 knots, becoming southeast in the
afternoon. Seas around 2 feet in the morning, then 1 foot or
less. Wave Detail: East 2 feet at 4 seconds, becoming east 1 foot
at 4 seconds.
.TUESDAY NIGHT...South winds 5 to 10 knots. Seas 1 foot or less,
then around 2 feet after midnight. Wave Detail: Southeast 1 foot
at 3 seconds, becoming south 2 feet at 3 seconds.
.WEDNESDAY...Southwest winds around 10 knots. Seas around 2 feet.
Wave Detail: Southwest 2 feet at 4 seconds.
.WEDNESDAY NIGHT...South winds 10 to 15 knots. Seas 2 to 3 feet.
A chance of sprinkles.
.THURSDAY...Southwest winds 10 to 15 knots. Seas 2 to 3 feet.
.THURSDAY NIGHT...Southwest winds around 10 knots, becoming
northwest after midnight. Seas around 2 feet. A chance of
sprinkles with a slight chance of thunderstorms after midnight.
.FRIDAY...Northeast winds 15 to 20 knots. Seas 2 to 3 feet. A
chance of sprinkles in the morning.
.FRIDAY NIGHT...Northeast winds 20 to 25 knots, increasing to
25 to 30 knots after midnight. Seas 2 to 4 feet.

Winds and seas higher in and near thunderstorms.

$$

GMZ452-080700-
Coastal waters from Intracoastal City to Cameron LA out 20 NM-
1200 PM CST Sun Dec 7 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM 6 PM CST THIS EVENING
THROUGH MONDAY MORNING...
...SMALL CRAFT EXERCISE CAUTION IN EFFECT MONDAY AFTERNOON...

.TONIGHT...West winds 10 to 15 knots, becoming north 20 to
25 knots with gusts up to 30 knots late this evening and early
morning, then increasing to 25 to 30 knots late. Seas 3 to
5 feet, occasionally to 6 feet. Wave Detail: Northwest 3 feet at
4 seconds and southeast 1 foot at 4 seconds. A chance of showers
with a slight chance of thunderstorms early this evening, then a
chance of sprinkles late this evening.
.MONDAY...North winds 20 to 25 knots, diminishing to 15 to
20 knots in the afternoon. Seas 2 to 4 feet. Wave Detail: North
3 feet at 3 seconds.
.MONDAY NIGHT...Northeast winds 15 to 20 knots, diminishing to
10 to 15 knots after midnight. Seas 2 to 3 feet. Wave Detail:
North 3 feet at 3 seconds.
.TUESDAY...East winds 5 to 10 knots, becoming southeast in the
afternoon. Seas around 2 feet in the morning, then 1 foot or
less. Wave Detail: East 1 foot at 3 seconds.
.TUESDAY NIGHT...South winds 5 to 10 knots. Seas 1 foot or less,
then around 2 feet after midnight. Wave Detail: South 1 foot at
2 seconds, becoming south 2 feet at 3 seconds.
.WEDNESDAY...Southwest winds 5 to 10 knots. Seas around 2 feet.
Wave Detail: Southwest 2 feet at 4 seconds.
.WEDNESDAY NIGHT...South winds 10 to 15 knots. Seas 2 to 3 feet.
A chance of sprinkles.
.THURSDAY...Southwest winds 10 to 15 knots. Seas 2 to 3 feet.
.THURSDAY NIGHT...Southwest winds around 10 knots, becoming west
after midnight. Seas 2 to 3 feet. A slight chance of showers in
the evening, then a chance of sprinkles with a slight chance of
thunderstorms after midnight.
.FRIDAY...North winds 15 to 20 knots, increasing to 20 to
25 knots in the afternoon. Seas 2 to 3 feet. A chance of showers
in the morning, then a chance of sprinkles in the afternoon.
.FRIDAY NIGHT...Northeast winds 25 to 30 knots. Seas 2 to 4 feet.
A slight chance of showers in the evening.

Winds and seas higher in and near thunderstorms.

$$

GMZ455-080700-
Coastal waters from Lower Atchafalaya River to Intracoastal City
LA out 20 NM-
1200 PM CST Sun Dec 7 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM 9 PM CST THIS EVENING
THROUGH MONDAY MORNING...
...SMALL CRAFT EXERCISE CAUTION IN EFFECT MONDAY AFTERNOON...

.TONIGHT...Southeast winds 5 to 10 knots, becoming northwest
10 to 15 knots with gusts up to 20 knots late this evening, then
becoming north 20 to 25 knots after midnight. Seas 1 to 2 feet,
building to 2 to 3 feet after midnight. Wave Detail: Northwest
1 foot at 2 seconds, becoming north 3 feet at 3 seconds. A chance
of showers early this evening, then showers likely with a slight
chance of thunderstorms late this evening. A chance of showers
after midnight.
.MONDAY...North winds 20 to 25 knots, diminishing to 15 to
20 knots in the afternoon. Seas 2 to 3 feet. Wave Detail: North
2 feet at 3 seconds.
.MONDAY NIGHT...Northeast winds 10 to 15 knots. Seas around
2 feet. Wave Detail: North 2 feet at 3 seconds.
.TUESDAY...Northeast winds 5 to 10 knots, becoming east in the
afternoon. Seas 1 foot or less. Wave Detail: Northeast 1 foot at
3 seconds.
.TUESDAY NIGHT...Southeast winds around 5 knots, becoming south
after midnight. Seas 1 foot or less. Wave Detail: South 1 foot at
2 seconds.
.WEDNESDAY...Southwest winds 5 to 10 knots. Seas 1 foot or less.
Wave Detail: Southwest 1 foot at 3 seconds.
.WEDNESDAY NIGHT...South winds 5 to 10 knots. Seas around 2 feet.
.THURSDAY...Southwest winds 5 to 10 knots. Seas around 2 feet. A
chance of sprinkles in the morning.
.THURSDAY NIGHT...Southwest winds 5 to 10 knots. Seas around
2 feet. A slight chance of showers in the evening, then a chance
of showers with a slight chance of thunderstorms after midnight.
.FRIDAY...North winds 10 to 15 knots. Seas around 2 feet. A
slight chance of showers in the morning, then a chance of showers
in the afternoon.
.FRIDAY NIGHT...Northeast winds 15 to 20 knots, increasing to
20 to 25 knots after midnight. Seas 2 to 3 feet. A slight chance
of showers in the evening.

Winds and seas higher in and near thunderstorms.

$$

GMZ470-080700-
Coastal waters from Cameron LA to High Island TX from 20 to 60 NM-
1200 PM CST Sun Dec 7 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM 6 PM CST THIS EVENING
THROUGH MONDAY AFTERNOON...

.TONIGHT...Northwest winds 15 to 20 knots, becoming north 20 to
25 knots with gusts up to 30 knots late this evening and
overnight. Seas 3 to 5 feet, occasionally to 6 feet, building to
5 to 7 feet, occasionally to 9 feet after midnight. Wave Detail:
Northwest 5 feet at 5 seconds and southeast 1 foot at 5 seconds,
becoming north 6 feet at 5 seconds. A chance of showers with a
slight chance of thunderstorms early this evening, then a slight
chance of showers late this evening.
.MONDAY...North winds 20 to 25 knots, diminishing to 15 to
20 knots in the afternoon. Seas 4 to 6 feet, occasionally to
8 feet. Wave Detail: North 5 feet at 5 seconds.
.MONDAY NIGHT...Northeast winds 10 to 15 knots. Seas 2 to 4 feet.
Wave Detail: Northeast 3 feet at 5 seconds.
.TUESDAY...Northeast winds 5 to 10 knots, becoming east in the
afternoon. Seas around 2 feet. Wave Detail: Northeast 2 feet at
4 seconds.
.TUESDAY NIGHT...South winds 5 to 10 knots. Seas 1 foot or less,
then around 2 feet after midnight. Wave Detail: South 1 foot at
2 seconds and east 1 foot at 5 seconds, becoming southeast 2 feet
at 4 seconds.
.WEDNESDAY...Southwest winds around 10 knots. Seas around 2 feet.
Wave Detail: Southwest 2 feet at 4 seconds and east 1 foot at
4 seconds.
.WEDNESDAY NIGHT...South winds 10 to 15 knots. Seas 2 to 4 feet.
A chance of sprinkles.
.THURSDAY...Southwest winds 10 to 15 knots. Seas 3 to 4 feet. A
chance of sprinkles in the morning.
.THURSDAY NIGHT...Southwest winds around 10 knots, becoming west
after midnight. Seas around 3 feet. A chance of sprinkles with a
slight chance of thunderstorms after midnight.
.FRIDAY...Northeast winds 15 to 20 knots. Seas 2 to 4 feet. A
slight chance of showers in the morning, then a chance of
sprinkles in the afternoon.
.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. A slight chance of showers.

Winds and seas higher in and near thunderstorms.

$$

GMZ472-080700-
Coastal waters from Intracoastal City to Cameron LA from 20 to
60 NM-
1200 PM CST Sun Dec 7 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM 6 PM CST THIS EVENING
THROUGH MONDAY AFTERNOON...

.TONIGHT...Northwest winds 10 to 15 knots, becoming north 20 to
25 knots with gusts up to 30 knots late this evening and early
morning, then increasing to 25 to 30 knots late. Seas 2 to
4 feet, building to 5 to 7 feet, occasionally to 9 feet after
midnight. Wave Detail: South 4 feet at 5 seconds and northwest
3 feet at 4 seconds, becoming north 7 feet at 6 seconds and
southeast 2 feet at 5 seconds. A chance of showers with a slight
chance of thunderstorms this evening, then a slight chance of
showers and thunderstorms after midnight.
.MONDAY...North winds 20 to 25 knots, diminishing to 15 to
20 knots in the afternoon. Seas 5 to 7 feet, occasionally to
9 feet, subsiding to 3 to 5 feet, occasionally to 6 feet in the
afternoon. Wave Detail: North 6 feet at 5 seconds, becoming north
5 feet at 5 seconds.
.MONDAY NIGHT...Northeast winds 15 to 20 knots, diminishing to
10 to 15 knots after midnight. Seas 2 to 4 feet. Wave Detail:
Northeast 4 feet at 5 seconds.
.TUESDAY...East winds 5 to 10 knots. Seas around 2 feet. Wave
Detail: Northeast 2 feet at 4 seconds.
.TUESDAY NIGHT...Southeast winds 5 to 10 knots, becoming south
after midnight. Seas 1 foot or less, then around 2 feet after
midnight. Wave Detail: Southeast 1 foot at 3 seconds, becoming
southeast 2 feet at 4 seconds.
.WEDNESDAY...Southwest winds around 10 knots. Seas around 2 feet.
Wave Detail: Southwest 2 feet at 4 seconds and east 1 foot at
4 seconds.
.WEDNESDAY NIGHT...Southwest winds 10 to 15 knots. Seas 2 to
3 feet. A chance of sprinkles.
.THURSDAY...Southwest winds 10 to 15 knots. Seas 3 to 4 feet. A
chance of sprinkles.
.THURSDAY NIGHT...Southwest winds around 10 knots, becoming west
after midnight. Seas around 3 feet. A chance of showers. A chance
of thunderstorms after midnight.
.FRIDAY...North winds 15 to 20 knots. Seas 3 to 4 feet. A chance
of showers.
.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. A slight chance of showers.

Winds and seas higher in and near thunderstorms.

$$

GMZ475-080700-
Coastal waters from Lower Atchafalaya River to Intracoastal City
LA from 20 to 60 NM-
1200 PM CST Sun Dec 7 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM 9 PM CST THIS EVENING
THROUGH MONDAY AFTERNOON...

.TONIGHT...East winds 5 to 10 knots, becoming northwest 15 to
20 knots late this evening, then becoming north 20 to 25 knots
after midnight, increasing to 25 to 30 knots late. Seas 2 to
3 feet, building to 4 to 6 feet, occasionally to 8 feet after
midnight. Wave Detail: Northwest 3 feet at 4 seconds and
southeast 1 foot at 5 seconds, becoming northwest 6 feet at
5 seconds and east 2 feet at 5 seconds. Showers likely this
evening. A slight chance of thunderstorms. A chance of showers
after midnight.
.MONDAY...North winds 20 to 25 knots with gusts up to 30 knots.
Seas 5 to 7 feet, occasionally to 9 feet. Wave Detail: North
5 feet at 6 seconds.
.MONDAY NIGHT...Northeast winds 15 to 20 knots, diminishing to
10 to 15 knots after midnight. Seas 3 to 5 feet, occasionally to
6 feet. Wave Detail: North 3 feet at 5 seconds.
.TUESDAY...Northeast winds 5 to 10 knots. Seas 2 to 3 feet. Wave
Detail: Northeast 3 feet at 4 seconds.
.TUESDAY NIGHT...Southeast winds around 5 knots, becoming south
after midnight. Seas 1 foot or less. Wave Detail: South 1 foot at
2 seconds and east 1 foot at 4 seconds.
.WEDNESDAY...Southwest winds 5 to 10 knots. Seas around 2 feet.
Wave Detail: Southwest 2 feet at 3 seconds and east 1 foot at
6 seconds.
.WEDNESDAY NIGHT...Southwest winds 5 to 10 knots, increasing to
10 to 15 knots after midnight. Seas 2 to 3 feet.
.THURSDAY...Southwest winds 10 to 15 knots. Seas 2 to 3 feet. A
chance of sprinkles.
.THURSDAY NIGHT...Southwest winds around 10 knots. Seas around
3 feet. A chance of sprinkles in the evening, then a chance of
showers and thunderstorms after midnight.
.FRIDAY...Northwest winds 10 to 15 knots, becoming north 15 to
20 knots in the afternoon. Seas 2 to 4 feet. A chance of showers,
mainly in the morning.
.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. A slight chance of showers.

Winds and seas higher in and near thunderstorms.

$$