Coastal Waters Forecast
Issued by NWS Lake Charles, LA

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FZUS54 KLCH 202030
CWFLCH

Coastal Waters Forecast
National Weather Service Lake Charles LA
330 PM CDT Sat Apr 20 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.

GMZ400-210930-
330 PM CDT Sat Apr 20 2024

.SYNOPSIS...
Light to moderate east to southeast winds can be expected for the
rest of the afternoon, as a weak frontal boundary meanders slowly
south over the region. Showers and a few thunderstorms will
increase this evening into Sunday as a disturbance aloft moves
into the area. The front will move offshore by early Sunday, with
strong offshore winds developing in its wake Sunday morning and
continue into Monday late morning and afternoon before
diminishing. Onshore flow will redevelop by Tuesday as surface
high pressure moves over the eastern seaboard.

$$

GMZ430-210930-
Sabine Lake-
330 PM CDT Sat Apr 20 2024

...SMALL CRAFT ADVISORY IN EFFECT FROM SUNDAY MORNING THROUGH
MONDAY MORNING...

.TONIGHT...Southeast winds 5 to 10 knots, becoming northeast
10 to 15 knots with gusts up to 20 knots late this evening and
early morning, then increasing to 15 to 20 knots with gusts up to
25 knots late. Lake waters rough. A chance of showers this
evening. A chance of thunderstorms. Showers likely after
midnight.
.SUNDAY...North winds 20 to 25 knots, becoming northeast 15 to
20 knots in the afternoon. Lake waters very rough. A chance of
showers and thunderstorms in the morning.
.SUNDAY NIGHT...Northeast winds 15 to 20 knots, diminishing to
10 to 15 knots after midnight. Lake waters rough.
.MONDAY...Northeast winds 15 to 20 knots, diminishing to 10 to
15 knots in the afternoon. Lake waters rough.
.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 around 5 knots, increasing to around
10 knots in the afternoon. Lake waters light chop.
.WEDNESDAY NIGHT...Southeast winds around 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.

$$

GMZ432-210930-
Calcasieu Lake-
330 PM CDT Sat Apr 20 2024

...SMALL CRAFT ADVISORY IN EFFECT FROM SUNDAY MORNING THROUGH
MONDAY MORNING...

.TONIGHT...Southeast winds 10 to 15 knots, becoming northeast
with gusts up to 20 knots late this evening, then increasing to
15 to 20 knots after midnight. Lake waters rough. A slight chance
of showers and thunderstorms this evening, then showers likely
with a chance of thunderstorms after midnight.
.SUNDAY...Northeast winds 20 to 25 knots with gusts up to
30 knots. Lake waters very rough. A chance of showers and
thunderstorms in the morning.
.SUNDAY NIGHT...Northeast winds 20 to 25 knots, diminishing to
15 to 20 knots after midnight. Lake waters very rough.
.MONDAY...Northeast winds 15 to 20 knots, diminishing to 10 to
15 knots in the afternoon. Lake waters rough.
.MONDAY NIGHT...East winds 10 to 15 knots, diminishing to 5 to
10 knots after midnight. Lake waters choppy.
.TUESDAY...Southeast winds 10 to 15 knots, becoming south 15 to
20 knots in the afternoon. Lake waters rough.
.TUESDAY NIGHT...South winds 15 to 20 knots, becoming southeast
5 to 10 knots after midnight. Lake waters rough.
.WEDNESDAY...Southeast winds 5 to 10 knots. Lake waters light
chop.
.WEDNESDAY NIGHT...Southeast winds around 10 knots. Lake waters
light chop.
.THURSDAY...Southeast winds 10 to 15 knots. Lake waters choppy.
.THURSDAY NIGHT...Southeast winds around 10 knots. Lake waters
light chop.

Winds and waves higher in and near thunderstorms.

$$

GMZ435-210930-
Vermilion and West Cote Blanche Bays-
330 PM CDT Sat Apr 20 2024

...SMALL CRAFT ADVISORY IN EFFECT FROM SUNDAY AFTERNOON THROUGH
MONDAY MORNING...

.TONIGHT...Southeast winds 5 to 10 knots, becoming northeast late
this evening, then becoming north after midnight. Bay waters
light chop. A chance of showers with a slight chance of
thunderstorms after midnight. Showers likely with a chance of
thunderstorms late.
.SUNDAY...North winds 10 to 15 knots, increasing to 15 to
20 knots in the afternoon. Bay waters rough. Showers likely with
a chance of thunderstorms in the morning, then a slight chance of
showers and thunderstorms in the afternoon.
.SUNDAY NIGHT...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...Northeast winds 5 to 10 knots. Bay waters light
chop.
.TUESDAY...East winds 5 to 10 knots, becoming southeast in the
afternoon. Bay waters light chop.
.TUESDAY NIGHT...Southeast winds 5 to 10 knots. Bay waters light
chop.
.WEDNESDAY...East winds around 5 knots, becoming southeast in the
afternoon. 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 10 to 15 knots. Bay waters
choppy.

Winds and waves higher in and near thunderstorms.

$$

GMZ436-210930-
Atchafalaya and East Cote Blanche Bays-
330 PM CDT Sat Apr 20 2024

...SMALL CRAFT ADVISORY IN EFFECT FROM SUNDAY AFTERNOON THROUGH
MONDAY MORNING...

.TONIGHT...Southeast winds around 5 knots, becoming north after
midnight. Bay and inland waters smooth. A chance of showers with
a slight chance of thunderstorms after midnight. Showers likely
with a chance of thunderstorms late.
.SUNDAY...North winds 5 to 10 knots, increasing to 10 to 15 knots
with gusts up to 20 knots in the afternoon. Bay and inland waters
choppy. A chance of thunderstorms. Showers likely, mainly in the
morning.
.SUNDAY NIGHT...North winds 10 to 15 knots. Bay and inland waters
choppy.
.MONDAY...Northeast winds 10 to 15 knots with gusts up to
20 knots, diminishing to 5 to 10 knots in the afternoon. Bay and
inland waters choppy.
.MONDAY NIGHT...Northeast 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 5 to 10 knots. Bay and inland
waters light chop.
.WEDNESDAY...East winds around 5 knots, becoming southeast in the
afternoon. Bay and inland waters light chop.
.WEDNESDAY NIGHT...Southeast winds 5 to 10 knots. Bay and inland
waters light chop.
.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.

$$

GMZ450-210930-
Coastal waters from Cameron LA to High Island TX out 20 NM-
330 PM CDT Sat Apr 20 2024

...SMALL CRAFT ADVISORY IN EFFECT FROM SUNDAY MORNING THROUGH
MONDAY MORNING...

.TONIGHT...East winds 10 to 15 knots, becoming northeast with
gusts up to 20 knots after midnight, then increasing to 15 to
20 knots late. Seas 2 to 3 feet. A slight chance of showers and
thunderstorms this evening, then showers likely with a chance of
thunderstorms after midnight.
.SUNDAY...Northeast 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 in the morning.
.SUNDAY NIGHT...Northeast winds 20 to 25 knots with gusts up to
30 knots. Seas 3 to 5 feet, occasionally to 6 feet.
.MONDAY...Northeast winds 20 to 25 knots, becoming east 10 to
15 knots in the afternoon. Seas 2 to 4 feet.
.MONDAY NIGHT...East winds around 10 knots. Seas around 2 feet.
.TUESDAY...Southeast winds 10 to 15 knots. Seas around 2 feet.
.TUESDAY NIGHT...Southeast winds 10 to 15 knots. Seas around
2 feet.
.WEDNESDAY...Southeast winds around 10 knots. Seas around 2 feet.
.WEDNESDAY NIGHT...Southeast winds 10 to 15 knots. Seas around
2 feet.
.THURSDAY...Southeast winds around 10 knots, increasing to around
15 knots in the afternoon. Seas around 2 feet.
.THURSDAY NIGHT...Southeast winds around 15 knots. Seas 2 to
3 feet.

Winds and seas higher in and near thunderstorms.

$$

GMZ452-210930-
Coastal waters from Intracoastal City to Cameron LA out 20 NM-
330 PM CDT Sat Apr 20 2024

...SMALL CRAFT ADVISORY IN EFFECT FROM SUNDAY MORNING THROUGH
MONDAY MORNING...

.TONIGHT...Southeast winds 10 to 15 knots, becoming east 5 to
10 knots late this evening, then becoming northeast 10 to
15 knots with gusts up to 20 knots after midnight, becoming north
15 to 20 knots late. Seas 2 to 3 feet. A slight chance of showers
and thunderstorms this evening, then showers likely with a chance
of thunderstorms after midnight.
.SUNDAY...Northeast winds 20 to 25 knots with gusts up to
30 knots. Seas 2 to 4 feet. Showers likely with a chance of
thunderstorms in the morning.
.SUNDAY NIGHT...Northeast winds 20 to 25 knots with gusts up to
30 knots. Seas 3 to 5 feet, occasionally to 6 feet.
.MONDAY...Northeast winds 20 to 25 knots, diminishing to 10 to
15 knots in the afternoon. Seas 2 to 4 feet.
.MONDAY NIGHT...East winds 5 to 10 knots. Seas around 2 feet.
.TUESDAY...Southeast winds 5 to 10 knots, increasing to 10 to
15 knots in the afternoon. Seas around 2 feet.
.TUESDAY NIGHT...Southeast winds 10 to 15 knots with gusts up to
20 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 10 to 15 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
3 feet.

Winds and seas higher in and near thunderstorms.

$$

GMZ455-210930-
Coastal waters from Lower Atchafalaya River to Intracoastal City
LA out 20 NM-
330 PM CDT Sat Apr 20 2024

...SMALL CRAFT ADVISORY IN EFFECT FROM SUNDAY AFTERNOON THROUGH
MONDAY MORNING...

.TONIGHT...Southeast winds around 5 knots, becoming north late.
Seas 1 to 2 feet this evening, then 1 foot or less. A chance of
showers with a slight chance of thunderstorms after midnight.
Showers likely with a chance of thunderstorms late.
.SUNDAY...North winds 10 to 15 knots with gusts up to 20 knots.
Seas 2 to 3 feet. A chance of thunderstorms. Showers, mainly in
the morning.
.SUNDAY NIGHT...Northeast winds 15 to 20 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 5 to 10 knots. Seas 1 foot or
less.
.WEDNESDAY...Southeast 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.

$$

GMZ470-210930-
Coastal waters from Cameron LA to High Island TX from 20 to 60 NM-
330 PM CDT Sat Apr 20 2024

...SMALL CRAFT ADVISORY IN EFFECT FROM SUNDAY MORNING THROUGH
MONDAY MORNING...

.TONIGHT...East winds around 10 knots, becoming northeast with
gusts up to 20 knots after midnight. Seas 2 to 3 feet. Showers
likely with a chance of thunderstorms after midnight.
.SUNDAY...Northeast winds 20 to 25 knots with gusts up to
30 knots. Seas 4 to 6 feet, occasionally to 8 feet. Showers
likely with a chance of thunderstorms in the morning.
.SUNDAY NIGHT...Northeast winds around 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 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 around 10 knots. Seas around
2 feet.
.WEDNESDAY...Southeast winds around 10 knots. Seas around 2 feet.
.WEDNESDAY NIGHT...Southeast winds 10 to 15 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 around 15 knots. Seas 2 to
4 feet.

Winds and seas higher in and near thunderstorms.

$$

GMZ472-210930-
Coastal waters from Intracoastal City to Cameron LA from 20 to
60 NM-
330 PM CDT Sat Apr 20 2024

...SMALL CRAFT ADVISORY IN EFFECT FROM SUNDAY MORNING THROUGH
MONDAY MORNING...

.TONIGHT...East winds 5 to 10 knots, becoming north 10 to
15 knots with gusts up to 20 knots late. Seas 2 to 3 feet. A
chance of showers and thunderstorms after midnight. Showers with
a chance of thunderstorms late.
.SUNDAY...Northeast winds 20 to 25 knots with gusts up to
30 knots. Seas 4 to 6 feet, occasionally to 8 feet. Patchy fog in
the morning. A chance of thunderstorms. Showers, mainly in the
morning.
.SUNDAY NIGHT...Northeast winds 20 to 25 knots with gusts up to
30 knots. Seas 5 to 6 feet, occasionally to 8 feet.
.MONDAY...Northeast winds 20 to 25 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 around 10 knots. Seas around
2 feet.
.WEDNESDAY...Southeast winds around 10 knots. Seas around 2 feet.
.WEDNESDAY NIGHT...Southeast winds 10 to 15 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.

$$

GMZ475-210930-
Coastal waters from Lower Atchafalaya River to Intracoastal City
LA from 20 to 60 NM-
330 PM CDT Sat Apr 20 2024

...SMALL CRAFT ADVISORY IN EFFECT FROM SUNDAY AFTERNOON THROUGH
MONDAY MORNING...

.TONIGHT...Southeast winds 5 to 10 knots, becoming north late.
Seas around 2 feet. A chance of showers with a slight chance of
thunderstorms after midnight. Showers likely with a chance of
thunderstorms late.
.SUNDAY...North winds 10 to 15 knots, increasing to 15 to
20 knots in the afternoon. Seas 2 to 4 feet. Patchy fog in the
morning. Showers with thunderstorms likely in the morning, then a
chance of showers and thunderstorms in the afternoon.
.SUNDAY NIGHT...Northeast winds 20 to 25 knots. Seas 4 to 6 feet,
occasionally to 8 feet.
.MONDAY...Northeast winds 15 to 20 knots with gusts up to
25 knots, diminishing to 10 to 15 knots in the afternoon. Seas
3 to 5 feet, occasionally to 6 feet.
.MONDAY NIGHT...East winds 5 to 10 knots. Seas 2 to 3 feet.
.TUESDAY...Southeast winds around 10 knots. Seas around 2 feet.
.TUESDAY NIGHT...Southeast winds around 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 10 to 15 knots. Seas 2 to
3 feet.

Winds and seas higher in and near thunderstorms.

$$


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