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000
FZUS54 KLCH 210833
CWFLCH

Coastal Waters Forecast
National Weather Service Lake Charles LA
333 AM CDT Sun Apr 21 2024

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.

GMZ400-212130-
333 AM CDT Sun Apr 21 2024

.SYNOPSIS...
Showers and a few thunderstorms will continue over the coastal
waters early this morning, exiting east of the lower Atchafalaya
River by early afternoon. Strong and gusty offshore flow and very
rough seas will continue to develop as cool high pressure builds
south across the plains. Winds will remain strong, shifting more
northeasterly, through early Monday before diminishing. Onshore
flow will redevelop by Tuesday as surface high pressure moves over
the eastern seaboard.

$$

GMZ430-212130-
Sabine Lake-
333 AM CDT Sun Apr 21 2024

...SMALL CRAFT ADVISORY IN EFFECT FROM 7 AM CDT THIS MORNING
THROUGH THIS EVENING...
...SMALL CRAFT EXERCISE CAUTION IN EFFECT FROM THIS EVENING
THROUGH MONDAY MORNING...

.TODAY...North winds 20 to 25 knots, becoming northeast 15 to
20 knots late this morning and afternoon. Lake waters very rough.
A slight chance of showers and thunderstorms early this morning.
.TONIGHT...Northeast winds 15 to 20 knots, diminishing to 10 to
15 knots after midnight. Lake waters rough.
.MONDAY...Northeast winds 10 to 15 knots with gusts up to
20 knots, diminishing to 5 to 10 knots in the afternoon. Lake
waters choppy.
.MONDAY NIGHT...East winds 5 to 10 knots. Lake waters light chop.
.TUESDAY...Southeast winds 5 to 10 knots, becoming south 10 to
15 knots in the afternoon. Lake waters choppy.
.TUESDAY NIGHT...South winds 10 to 15 knots with gusts up to
20 knots, diminishing to 5 to 10 knots after midnight. Lake
waters choppy.
.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 10 knots. Lake waters
light chop.

Winds and waves higher in and near thunderstorms.

$$

GMZ432-212130-
Calcasieu Lake-
333 AM CDT Sun Apr 21 2024

...SMALL CRAFT ADVISORY IN EFFECT FROM 7 AM CDT THIS MORNING
THROUGH THIS EVENING...
...SMALL CRAFT EXERCISE CAUTION IN EFFECT FROM THIS EVENING
THROUGH MONDAY MORNING...

.TODAY...Northeast winds 15 to 25 knots with gusts up to 30
knots. Lake waters rough. A chance of showers and thunderstorms
early this morning.
.TONIGHT...Northeast winds 15 to 20 knots, diminishing to 10 to
15 knots after midnight. Gusts up to 30 knots. Lake waters rough.
.MONDAY...Northeast winds 10 to 15 knots with gusts up to
25 knots. Lake waters choppy.
.MONDAY NIGHT...East winds 5 to 10 knots. Lake waters light chop.
.TUESDAY...Southeast winds 10 to 15 knots. Lake waters choppy.
.TUESDAY NIGHT...South winds 10 to 15 knots with gusts up to
20 knots, diminishing to 5 to 10 knots after midnight. Lake
waters choppy.
.WEDNESDAY...East winds 5 to 10 knots, becoming southeast in the
afternoon. Lake waters light chop.
.WEDNESDAY NIGHT...South winds 5 to 10 knots. Lake waters light
chop.
.THURSDAY...Southeast winds 5 to 10 knots, increasing to 10 to
15 knots in the afternoon. Lake waters choppy.
.THURSDAY NIGHT...Southeast winds 10 to 15 knots. Lake waters
choppy.

Winds and waves higher in and near thunderstorms.

$$

GMZ435-212130-
Vermilion and West Cote Blanche Bays-
333 AM CDT Sun Apr 21 2024

...SMALL CRAFT ADVISORY IN EFFECT FROM 1 PM CDT THIS AFTERNOON
THROUGH THIS EVENING...
...SMALL CRAFT EXERCISE CAUTION IN EFFECT FROM THIS EVENING
THROUGH MONDAY MORNING...

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

Winds and waves higher in and near thunderstorms.

$$

GMZ436-212130-
Atchafalaya and East Cote Blanche Bays-
333 AM CDT Sun Apr 21 2024

...SMALL CRAFT ADVISORY IN EFFECT FROM 1 PM CDT THIS AFTERNOON
THROUGH THIS EVENING...
...SMALL CRAFT EXERCISE CAUTION IN EFFECT FROM THIS EVENING
THROUGH MONDAY MORNING...

.TODAY...North winds 10 to 15 knots, increasing to around 20
knots late this morning and afternoon. Bay and inland waters
rough. Showers likely with a chance of thunderstorms early this
morning, then a slight chance of showers and thunderstorms late
this morning.
.TONIGHT...North winds 15 to 20 knots. Bay and inland waters
rough.
.MONDAY...Northeast winds 10 to 15 knots. Bay and inland waters
choppy.
.MONDAY NIGHT...East winds around 5 knots. Bay and inland waters
smooth.
.TUESDAY...Southeast winds 5 to 10 knots. Bay and inland waters
light chop.
.TUESDAY NIGHT...Southeast winds around 5 knots. Bay and inland
waters smooth.
.WEDNESDAY...East winds around 5 knots, becoming south in the
afternoon. Bay and inland waters smooth.
.WEDNESDAY NIGHT...Southeast winds around 5 knots. Bay and inland
waters smooth.
.THURSDAY...Southeast winds 5 to 10 knots. Bay and inland waters
light chop.
.THURSDAY NIGHT...Southeast winds 10 to 15 knots. Bay and inland
waters choppy.

Winds and waves higher in and near thunderstorms.

$$

GMZ450-212130-
Coastal waters from Cameron LA to High Island TX out 20 NM-
333 AM CDT Sun Apr 21 2024

...SMALL CRAFT ADVISORY IN EFFECT FROM 7 AM CDT THIS MORNING
THROUGH MONDAY MORNING...

.TODAY...North winds 20 to 25 knots with gusts up to 30 knots.
Seas 3 to 5 feet, occasionally to 6 feet. A chance of showers and
thunderstorms early this morning.
.TONIGHT...Northeast winds 20 to 25 knots. Seas 2 to 4 feet.
.MONDAY...Northeast winds 20 to 25 knots, becoming east 10 to
15 knots in the afternoon. Seas 3 to 5 feet, occasionally to
6 feet.
.MONDAY NIGHT...Southeast winds around 10 knots. Seas around
2 feet.
.TUESDAY...Southeast winds 10 to 15 knots. Seas around 2 feet.
.TUESDAY NIGHT...South winds 10 to 15 knots, diminishing to 5 to
10 knots after midnight. Seas around 2 feet.
.WEDNESDAY...Southeast winds 5 to 10 knots. Seas around 2 feet.
.WEDNESDAY NIGHT...Southeast winds around 10 knots. Seas around
2 feet.
.THURSDAY...Southeast winds around 10 knots, increasing to around
15 knots in the afternoon. Seas 2 to 3 feet.
.THURSDAY NIGHT...Southeast winds 15 to 20 knots. Seas 2 to
4 feet.

Winds and seas higher in and near thunderstorms.

$$

GMZ452-212130-
Coastal waters from Intracoastal City to Cameron LA out 20 NM-
333 AM CDT Sun Apr 21 2024

...SMALL CRAFT ADVISORY IN EFFECT FROM 7 AM CDT THIS MORNING
THROUGH MONDAY MORNING...

.TODAY...North winds 20 to 25 knots with gusts up to 30 knots.
Seas 3 to 5 feet, occasionally to 6 feet. A chance of showers and
thunderstorms early this morning, then a slight chance of showers
and thunderstorms late this morning.
.TONIGHT...Northeast winds 20 to 25 knots with gusts up to
30 knots. Seas 2 to 4 feet.
.MONDAY...Northeast winds 20 to 25 knots with gusts up to
30 knots, diminishing to 10 to 15 knots with gusts up to 20 knots
in the afternoon. Seas 2 to 4 feet.
.MONDAY NIGHT...East winds 5 to 10 knots. Seas around 2 feet in
the evening, then 1 foot or less.
.TUESDAY...Southeast winds 5 to 10 knots, increasing to 10 to
15 knots in the afternoon. Seas around 2 feet.
.TUESDAY NIGHT...South winds 10 to 15 knots, diminishing to 5 to
10 knots after midnight. Seas around 2 feet.
.WEDNESDAY...Southeast winds 5 to 10 knots. Seas 1 foot or less,
then around 2 feet in the afternoon.
.WEDNESDAY NIGHT...Southeast winds around 10 knots. Seas around
2 feet.
.THURSDAY...Southeast winds 10 to 15 knots. Seas around 2 feet.
.THURSDAY NIGHT...Southeast winds around 15 knots. Seas 2 to
4 feet.

Winds and seas higher in and near thunderstorms.

$$

GMZ455-212130-
Coastal waters from Lower Atchafalaya River to Intracoastal City
LA out 20 NM-
333 AM CDT Sun Apr 21 2024

...SMALL CRAFT ADVISORY IN EFFECT FROM 1 PM CDT THIS AFTERNOON
THROUGH MONDAY MORNING...

.TODAY...Northeast winds 10 to 15 knots, becoming north around 20
knots late this morning and afternoon. Seas 2 to 3 feet. Showers
likely with a chance of thunderstorms early this morning, then a
slight chance of showers and thunderstorms late this morning.
.TONIGHT...Northeast winds 15 to 20 knots with gusts up to
25 knots. Seas 2 to 3 feet.
.MONDAY...Northeast winds 15 to 20 knots, diminishing to 10 to
15 knots in the afternoon. Seas 2 to 3 feet.
.MONDAY NIGHT...East winds around 5 knots. Seas 1 foot or less.
.TUESDAY...Southeast winds 5 to 10 knots. Seas 1 foot or less.
.TUESDAY NIGHT...Southeast winds around 5 knots. Seas 1 foot or
less.
.WEDNESDAY...East winds 5 to 10 knots. Seas 1 foot or less.
.WEDNESDAY NIGHT...Southeast winds 5 to 10 knots. Seas 1 foot or
less.
.THURSDAY...Southeast winds 5 to 10 knots. Seas 1 foot or less,
then around 2 feet in the afternoon.
.THURSDAY NIGHT...Southeast winds 10 to 15 knots. Seas 2 to
3 feet.

Winds and seas higher in and near thunderstorms.

$$

GMZ470-212130-
Coastal waters from Cameron LA to High Island TX from 20 to 60 NM-
333 AM CDT Sun Apr 21 2024

...SMALL CRAFT ADVISORY IN EFFECT FROM 7 AM CDT THIS MORNING
THROUGH MONDAY MORNING...

.TODAY...Northeast winds 20 to 25 knots with gusts up to
30 knots. Seas 5 to 7 feet, occasionally to 9 feet. A chance of
showers with a slight chance of thunderstorms early this morning,
then a slight chance of showers and thunderstorms late this
morning.
.TONIGHT...Northeast winds 20 to 25 knots with gusts up to
30 knots. Seas 5 to 7 feet, occasionally to 9 feet.
.MONDAY...Northeast 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.
.MONDAY NIGHT...East winds around 10 knots. Seas 2 to 3 feet.
.TUESDAY...Southeast winds around 10 knots. Seas around 2 feet.
.TUESDAY NIGHT...Southeast winds 5 to 10 knots. Seas around
2 feet.
.WEDNESDAY...East winds around 10 knots. Seas around 2 feet.
.WEDNESDAY NIGHT...Southeast winds around 10 knots. Seas around
2 feet.
.THURSDAY...Southeast winds around 10 knots, increasing to around
15 knots in the afternoon. Seas 2 to 3 feet.
.THURSDAY NIGHT...Southeast winds 15 to 20 knots. Seas 3 to
4 feet.

Winds and seas higher in and near thunderstorms.

$$

GMZ472-212130-
Coastal waters from Intracoastal City to Cameron LA from 20 to
60 NM-
333 AM CDT Sun Apr 21 2024

...SMALL CRAFT ADVISORY IN EFFECT FROM 7 AM CDT THIS MORNING
THROUGH MONDAY MORNING...

.TODAY...Northeast winds 20 to 25 knots with gusts up to
30 knots. Seas 3 to 5 feet, occasionally to 6 feet, building to
5 to 6 feet, occasionally to 8 feet this afternoon. A chance of
showers and thunderstorms early this morning, then a slight
chance of showers and thunderstorms late this morning.
.TONIGHT...Northeast winds 20 to 25 knots with gusts up to
30 knots. Seas 5 to 7 feet, occasionally to 9 feet.
.MONDAY...Northeast winds 20 to 25 knots with gusts up to
30 knots, diminishing to 15 to 20 knots in the afternoon. Seas
4 to 6 feet, occasionally to 8 feet.
.MONDAY NIGHT...East winds around 10 knots. Seas 2 to 3 feet.
.TUESDAY...Southeast winds around 10 knots. Seas around 2 feet.
.TUESDAY NIGHT...Southeast winds 5 to 10 knots. Seas around
2 feet.
.WEDNESDAY...East winds 5 to 10 knots. Seas around 2 feet.
.WEDNESDAY NIGHT...Southeast winds around 10 knots. Seas around
2 feet.
.THURSDAY...Southeast winds 10 to 15 knots. Seas 2 to 3 feet.
.THURSDAY NIGHT...Southeast winds 15 to 20 knots. Seas 2 to
4 feet.

Winds and seas higher in and near thunderstorms.

$$

GMZ475-212130-
Coastal waters from Lower Atchafalaya River to Intracoastal City
LA from 20 to 60 NM-
333 AM CDT Sun Apr 21 2024

...SMALL CRAFT ADVISORY IN EFFECT FROM 1 PM CDT THIS AFTERNOON
THROUGH MONDAY MORNING...

.TODAY...Northeast winds 10 to 15 knots, increasing to around 20
knots late this morning and afternoon. Seas 3 to 5 feet,
occasionally to 6 feet. A chance of showers and thunderstorms this
morning, then a slight chance of showers and thunderstorms early
this afternoon.
.TONIGHT...Northeast winds 20 to 25 knots. Seas 4 to 6 feet,
occasionally to 8 feet.
.MONDAY...Northeast winds around 20 knots, diminishing to 10 to
15 knots in the afternoon. Seas 4 to 6 feet, occasionally to
8 feet.
.MONDAY NIGHT...East winds 5 to 10 knots. Seas 2 to 3 feet.
.TUESDAY...Southeast winds 5 to 10 knots. Seas around 2 feet.
.TUESDAY NIGHT...Southeast winds 5 to 10 knots. Seas around
2 feet.
.WEDNESDAY...East winds 5 to 10 knots. Seas around 2 feet.
.WEDNESDAY NIGHT...Southeast winds around 10 knots. Seas around
2 feet.
.THURSDAY...Southeast winds around 10 knots. Seas around 2 feet.
.THURSDAY NIGHT...Southeast winds around 15 knots. Seas 2 to
3 feet.

Winds and seas higher in and near thunderstorms.

$$