Your Ultimate Boating Resource

HomeForecastsLouisiana ForecastsWeeks Bay, LA Coastal Forecast

Weeks Bay, LA Coastal Forecast

FZUS54 KLCH 250615
CWFLCH

Coastal Waters Forecast
National Weather Service Lake Charles LA
1215 AM CST Thu Dec 25 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.

GMZ400-251900-
1215 AM CST Thu Dec 25 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...

A light onshore flow will prevail through Sunday afternoon, keeping
a daily risk of sea fog in the forecast. Due to ongoing dense marine
fog and elevated probabilities of fog persisting, the DF.Y was
extended into local noon today for the nearshore marine zones.
Brief periods of increased visibilities will be possible for all
marine zones in the afternoon, however.

A strong offshore flow is expected in the wake of a cold front
forecast to push through the coastal waters late Sunday night into
early Monday. This will assist with clearing the fog, however with
elevated offshore flow and gusts predicted, a SC.Y will be likely
and a GL.A may become necessary.

$$

GMZ430-251900-
Sabine Lake-
1215 AM CST Thu Dec 25 2025

...DENSE FOG ADVISORY IN EFFECT UNTIL NOON CST TODAY...

.TODAY...Southeast winds around 5 knots, becoming south this
afternoon. Lake waters light chop. Widespread dense fog early
this morning, then patchy dense fog late this morning.
.TONIGHT...South winds 5 to 10 knots. Lake waters light chop.
Patchy dense fog in the evening, then widespread dense fog after
midnight.
.FRIDAY...Southwest winds 5 to 10 knots. Lake waters light chop.
Areas of fog in the morning.
.FRIDAY NIGHT...Southwest winds 5 to 10 knots. Lake waters light
chop.
.SATURDAY...South winds 5 to 10 knots. Lake waters light chop.
.SATURDAY NIGHT...South winds 5 to 10 knots. Lake waters light
chop.
.SUNDAY...South winds 5 to 10 knots. Lake waters light chop.
.SUNDAY NIGHT...South winds 5 to 10 knots, becoming northwest
20 to 25 knots after midnight. Lake waters very rough. A slight
chance of showers in the evening, then a chance of showers after
midnight.
.MONDAY...North winds 20 to 25 knots. Lake waters very rough. A
slight chance of showers in the morning.
.MONDAY NIGHT...North winds 20 to 25 knots, diminishing to 15 to
20 knots after midnight. Lake waters very rough.

$$

GMZ432-251900-
Calcasieu Lake-
1215 AM CST Thu Dec 25 2025

...DENSE FOG ADVISORY IN EFFECT UNTIL NOON CST TODAY...

.TODAY...Southeast winds 5 to 10 knots. Lake waters light chop.
Widespread dense fog early this morning, then patchy dense fog
late this morning.
.TONIGHT...South winds 5 to 10 knots. Lake waters light chop.
Patchy dense fog in the evening, then widespread dense fog after
midnight.
.FRIDAY...Southwest winds 5 to 10 knots. Lake waters light chop.
Areas of fog in the morning.
.FRIDAY NIGHT...Southwest winds 5 to 10 knots. Lake waters light
chop.
.SATURDAY...South winds 5 to 10 knots. Lake waters light chop.
.SATURDAY NIGHT...South winds 5 to 10 knots. Lake waters light
chop.
.SUNDAY...South winds 5 to 10 knots. Lake waters light chop.
.SUNDAY NIGHT...South winds 5 to 10 knots, becoming northwest
20 to 25 knots after midnight. Lake waters very rough. A slight
chance of showers in the evening, then a chance of showers after
midnight.
.MONDAY...North winds 25 to 30 knots, diminishing to 20 to
25 knots in the afternoon. Lake waters extremely rough. A slight
chance of showers in the morning.
.MONDAY NIGHT...North winds 20 to 25 knots, diminishing to 15 to
20 knots after midnight. Lake waters very rough.

$$

GMZ435-251900-
Vermilion and West Cote Blanche Bays-
1215 AM CST Thu Dec 25 2025

...DENSE FOG ADVISORY IN EFFECT UNTIL NOON CST TODAY...

.TODAY...Southeast winds around 5 knots. Bay waters smooth.
Widespread dense fog early this morning, then areas of dense fog
late this morning. Patchy dense fog this afternoon.
.TONIGHT...South winds around 5 knots. Bay waters smooth. Patchy
dense fog in the evening, then widespread dense fog after
midnight.
.FRIDAY...South winds 5 to 10 knots. Bay waters light chop. Areas
of fog in the morning.
.FRIDAY NIGHT...Southwest winds around 5 knots. Bay waters
smooth.
.SATURDAY...South winds 5 to 10 knots. Bay waters light chop.
.SATURDAY NIGHT...South winds 5 to 10 knots. Bay waters light
chop.
.SUNDAY...South winds 5 to 10 knots. Bay waters light chop.
.SUNDAY NIGHT...South winds around 5 knots, becoming west 20 to
25 knots after midnight. Bay waters very rough. A chance of
showers.
.MONDAY...North winds 25 to 30 knots, diminishing to 20 to
25 knots in the afternoon. Bay waters extremely rough. A chance
of showers, mainly in the morning.
.MONDAY NIGHT...North winds 20 to 25 knots. Bay waters very
rough.

$$

GMZ436-251900-
Atchafalaya and East Cote Blanche Bays-
1215 AM CST Thu Dec 25 2025

...DENSE FOG ADVISORY IN EFFECT UNTIL NOON CST TODAY...

.TODAY...Southeast winds around 5 knots. Bay waters smooth.
Widespread dense fog early this morning, then patchy dense fog
late this morning and afternoon.
.TONIGHT...South winds around 5 knots. Bay waters smooth. Patchy
dense fog in the evening, then areas of dense fog after midnight.
.FRIDAY...South winds 5 to 10 knots. Bay waters light chop. Areas
of fog in the morning.
.FRIDAY NIGHT...Southwest winds around 5 knots. Bay waters
smooth.
.SATURDAY...South winds around 5 knots. Bay waters smooth.
.SATURDAY NIGHT...South winds 5 to 10 knots. Bay waters light
chop.
.SUNDAY...South winds 5 to 10 knots. Bay waters light chop. A
slight chance of showers in the afternoon.
.SUNDAY NIGHT...South winds around 5 knots, becoming west 10 to
15 knots after midnight. Bay waters choppy. A chance of showers.
.MONDAY...North winds 15 to 20 knots. Bay waters rough. A chance
of showers, mainly in the morning.
.MONDAY NIGHT...North winds 15 to 20 knots. Bay waters rough.

$$

GMZ450-251900-
Coastal waters from Cameron LA to High Island TX out 20 NM-
1215 AM CST Thu Dec 25 2025

...DENSE FOG ADVISORY IN EFFECT UNTIL NOON CST TODAY...

.TODAY...Southeast winds 5 to 10 knots. Seas around 2 feet. Areas
of dense fog this morning, then patchy fog this afternoon.
.TONIGHT...South winds 5 to 10 knots. Seas around 2 feet. Patchy
dense fog in the evening, then areas of dense fog after midnight.
.FRIDAY...Southwest winds 5 to 10 knots. Seas around 2 feet. Wave
Detail: South 2 feet at 4 seconds. Patchy fog in the morning.
.FRIDAY NIGHT...Southwest winds 5 to 10 knots. Seas around
2 feet. Wave Detail: South 2 feet at 4 seconds.
.SATURDAY...South winds 5 to 10 knots. Seas around 2 feet. Wave
Detail: South 2 feet at 4 seconds.
.SATURDAY NIGHT...South winds around 10 knots. Seas around
2 feet. Wave Detail: South 2 feet at 4 seconds.
.SUNDAY...South winds 5 to 10 knots. Seas around 2 feet.
.SUNDAY NIGHT...South winds 5 to 10 knots, becoming northwest
20 to 25 knots after midnight. Seas 2 to 4 feet. A chance of
showers in the evening, then showers likely after midnight.
.MONDAY...North winds 25 to 30 knots, diminishing to 20 to
25 knots in the afternoon. Seas 2 to 4 feet. A chance of showers,
mainly in the morning.
.MONDAY NIGHT...North winds 20 to 25 knots. Seas 2 to 4 feet.

$$

GMZ452-251900-
Coastal waters from Intracoastal City to Cameron LA out 20 NM-
1215 AM CST Thu Dec 25 2025

...DENSE FOG ADVISORY IN EFFECT UNTIL NOON CST TODAY...

.TODAY...Southeast winds 5 to 10 knots. Seas around 2 feet. Areas
of dense fog early this morning, then patchy dense fog late this
morning and afternoon.
.TONIGHT...Southeast winds 5 to 10 knots. Seas around 2 feet.
Wave Detail: South 1 foot at 2 seconds. Patchy dense fog in the
evening, then areas of dense fog after midnight.
.FRIDAY...Southwest winds 5 to 10 knots. Seas around 2 feet. Wave
Detail: South 1 foot at 4 seconds. Patchy fog in the morning.
.FRIDAY NIGHT...Southwest winds 5 to 10 knots. Seas around
2 feet. Wave Detail: South 1 foot at 4 seconds.
.SATURDAY...South winds 5 to 10 knots. Seas around 2 feet. Wave
Detail: South 2 feet at 4 seconds.
.SATURDAY NIGHT...South winds 5 to 10 knots. Seas around 2 feet.
Wave Detail: South 2 feet at 4 seconds.
.SUNDAY...South winds 5 to 10 knots. Seas around 2 feet. A slight
chance of showers in the afternoon.
.SUNDAY NIGHT...South winds 5 to 10 knots, becoming west 20 to
25 knots after midnight. Seas 2 to 4 feet. A chance of showers in
the evening, then showers likely after midnight.
.MONDAY...North winds 25 to 30 knots. Seas 2 to 4 feet. A chance
of showers, mainly in the morning.
.MONDAY NIGHT...North winds 25 to 30 knots, diminishing to 20 to
25 knots after midnight. Seas 2 to 4 feet.

$$

GMZ455-251900-
Coastal waters from Lower Atchafalaya River to Intracoastal City
LA out 20 NM-
1215 AM CST Thu Dec 25 2025

...DENSE FOG ADVISORY IN EFFECT UNTIL NOON CST TODAY...

.TODAY...Southeast winds around 5 knots. Seas 1 foot or less.
Widespread dense fog early this morning, then areas of dense fog
late this morning and early afternoon. Patchy dense fog late.
.TONIGHT...Southeast winds around 5 knots. Seas 1 foot or less.
Patchy dense fog in the evening, then areas of dense fog after
midnight.
.FRIDAY...South winds around 5 knots. Seas 1 foot or less. Wave
Detail: South 1 foot at 3 seconds. Patchy fog in the morning.
.FRIDAY NIGHT...Southwest winds around 5 knots. Seas 1 foot or
less. Wave Detail: South 1 foot at 4 seconds.
.SATURDAY...South winds around 5 knots. Seas 1 foot or less. Wave
Detail: South 1 foot at 4 seconds.
.SATURDAY NIGHT...South winds 5 to 10 knots. Seas 1 foot or less,
then around 2 feet after midnight. Wave Detail: South 1 foot at
4 seconds, becoming south 1 foot at 3 seconds.
.SUNDAY...South winds 5 to 10 knots. Seas around 2 feet. A slight
chance of showers in the afternoon.
.SUNDAY NIGHT...South winds 5 to 10 knots, becoming west 15 to
20 knots after midnight. Seas 1 foot or less, then 2 to 3 feet
after midnight. A chance of showers in the evening, then showers
likely after midnight.
.MONDAY...North winds 20 to 25 knots. Seas 2 to 4 feet. A chance
of showers, mainly in the morning.
.MONDAY NIGHT...North winds 20 to 25 knots. Seas 2 to 4 feet.

$$

GMZ470-251900-
Coastal waters from Cameron LA to High Island TX from 20 to 60 NM-
1215 AM CST Thu Dec 25 2025

.TODAY...Southeast winds around 5 knots. Seas 2 to 3 feet. Patchy
dense fog.
.TONIGHT...South winds 5 to 10 knots. Seas 2 to 3 feet. Patchy
dense fog.
.FRIDAY...Southwest winds 5 to 10 knots. Seas around 2 feet.
.FRIDAY NIGHT...South winds around 10 knots. Seas around 2 feet.
Wave Detail: Southwest 2 feet at 4 seconds.
.SATURDAY...South winds 5 to 10 knots. Seas around 2 feet. Wave
Detail: South 2 feet at 4 seconds.
.SATURDAY NIGHT...South winds around 10 knots. Seas 2 to 3 feet.
Wave Detail: South 2 feet at 4 seconds.
.SUNDAY...South winds 5 to 10 knots. Seas 2 to 3 feet. A slight
chance of showers in the afternoon.
.SUNDAY NIGHT...South winds 5 to 10 knots, becoming west 20 to
25 knots after midnight. Seas 2 to 4 feet. A chance of showers in
the evening, then showers likely after midnight.
.MONDAY...North winds 25 to 30 knots. Seas 4 to 6 feet,
occasionally to 8 feet. A chance of showers with a slight chance
of thunderstorms in the morning, then a slight chance of showers
in the afternoon.
.MONDAY NIGHT...North winds 25 to 30 knots, diminishing to 20 to
25 knots after midnight. Seas 4 to 6 feet, occasionally to
8 feet. A slight chance of showers in the evening.

Winds and seas higher in and near thunderstorms.

$$

GMZ472-251900-
Coastal waters from Intracoastal City to Cameron LA from 20 to
60 NM-
1215 AM CST Thu Dec 25 2025

.TODAY...Southeast winds 5 to 10 knots. Seas 2 to 3 feet. Patchy
dense fog.
.TONIGHT...Southeast winds 5 to 10 knots. Seas around 2 feet.
Patchy dense fog in the evening. Areas of dense fog after
midnight.
.FRIDAY...Southwest winds 5 to 10 knots. Seas around 2 feet. Wave
Detail: South 1 foot at 4 seconds.
.FRIDAY NIGHT...Southwest winds 5 to 10 knots. Seas around
2 feet. Wave Detail: Southwest 1 foot at 4 seconds.
.SATURDAY...South winds 5 to 10 knots. Seas around 2 feet. Wave
Detail: South 2 feet at 4 seconds.
.SATURDAY NIGHT...South winds 5 to 10 knots. Seas around 2 feet.
Wave Detail: South 2 feet at 4 seconds.
.SUNDAY...South winds 5 to 10 knots. Seas 2 to 3 feet. A slight
chance of showers in the afternoon.
.SUNDAY NIGHT...South winds 5 to 10 knots, becoming west 20 to
25 knots after midnight. Seas 2 to 4 feet. A chance of showers in
the evening, then showers likely after midnight.
.MONDAY...North winds 25 to 30 knots. Seas 4 to 6 feet,
occasionally to 8 feet. A slight chance of thunderstorms in the
morning. A chance of showers.
.MONDAY NIGHT...North winds 25 to 30 knots. Seas 4 to 6 feet,
occasionally to 8 feet. A slight chance of showers in the
evening.

Winds and seas higher in and near thunderstorms.

$$

GMZ475-251900-
Coastal waters from Lower Atchafalaya River to Intracoastal City
LA from 20 to 60 NM-
1215 AM CST Thu Dec 25 2025

.TODAY...Southeast winds 5 to 10 knots. Seas 2 to 3 feet. Areas
of dense fog early this morning. Patchy dense fog late this
morning and afternoon.
.TONIGHT...Southeast winds 5 to 10 knots. Seas around 2 feet.
Wave Detail: South 1 foot at 5 seconds. Patchy dense fog in the
evening. Areas of dense fog after midnight.
.FRIDAY...South winds 5 to 10 knots. Seas around 2 feet. Wave
Detail: South 1 foot at 5 seconds.
.FRIDAY NIGHT...South winds 5 to 10 knots. Seas around 2 feet.
Wave Detail: South 2 feet at 4 seconds.
.SATURDAY...South winds 5 to 10 knots. Seas around 2 feet. Wave
Detail: South 2 feet at 4 seconds. A slight chance of showers in
the afternoon.
.SATURDAY NIGHT...South winds 5 to 10 knots. Seas around 2 feet.
Wave Detail: South 2 feet at 4 seconds.
.SUNDAY...South winds 5 to 10 knots. Seas 2 to 3 feet. A chance
of showers in the afternoon.
.SUNDAY NIGHT...South winds 5 to 10 knots, becoming west 15 to
20 knots after midnight. Seas 2 to 4 feet. A chance of showers in
the evening, then showers likely with a slight chance of
thunderstorms after midnight.
.MONDAY...North winds 25 to 30 knots. Seas 2 to 4 feet, building
to 4 to 6 feet, occasionally to 8 feet in the afternoon. A slight
chance of thunderstorms in the morning. A chance of showers.
.MONDAY NIGHT...North winds 25 to 30 knots. Seas 4 to 6 feet,
occasionally to 8 feet. A slight chance of showers in the
evening.

Winds and seas higher in and near thunderstorms.

$$



Don't Miss