Coastal Waters Forecast
Issued by NWS Lake Charles, LA

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FZUS54 KLCH 182036
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Coastal Waters Forecast
National Weather Service Lake Charles LA
336 PM CDT Thu Apr 18 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.

GMZ400-191015-
336 PM CDT Thu Apr 18 2024

.SYNOPSIS...
High pressure will continue off to the east with lower pressure across
the southern Plains through the first part of Saturday. This will keep
a light to modest southerly flow in place. Shower activity will increase
late Saturday as a surface front moves into the region. This front will
move across the coastal waters late Saturday night into Sunday morning,
with modest to strong offshore winds developing behind it.

$$

GMZ430-191015-
Sabine Lake-
336 PM CDT Thu Apr 18 2024

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

Winds and waves higher in and near thunderstorms.

$$

GMZ432-191015-
Calcasieu Lake-
336 PM CDT Thu Apr 18 2024

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

Winds and waves higher in and near thunderstorms.

$$

GMZ435-191015-
Vermilion and West Cote Blanche Bays-
336 PM CDT Thu Apr 18 2024

.TONIGHT...South winds 5 to 10 knots, diminishing to around
5 knots late. Bay waters light chop. Patchy fog after midnight.
.FRIDAY...South winds around 5 knots, increasing to 5 to 10 knots
in the afternoon. Bay waters light chop. Patchy fog in the
morning.
.FRIDAY NIGHT...South winds 5 to 10 knots, diminishing to around
5 knots after midnight. Bay waters light chop.
.SATURDAY...East winds around 5 knots, becoming southeast in the
afternoon. Bay waters light chop.
.SATURDAY NIGHT...Southeast winds 5 to 10 knots, becoming east
after midnight. Bay waters light chop. A chance of showers and
thunderstorms after midnight.
.SUNDAY...North winds 5 to 10 knots, increasing to 10 to 15 knots
with gusts up to 20 knots in the afternoon. Bay waters choppy. A
chance of thunderstorms. Showers, mainly in the morning.
.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, becoming east 5 to
10 knots in the afternoon. Bay waters choppy.
.MONDAY NIGHT...Southeast winds 5 to 10 knots. Bay waters light
chop.
.TUESDAY...Southeast winds around 10 knots. Bay waters light
chop. A slight chance of showers and thunderstorms in the
afternoon.
.TUESDAY NIGHT...Southeast winds 5 to 10 knots. Bay waters light
chop.

Winds and waves higher in and near thunderstorms.

$$

GMZ436-191015-
Atchafalaya and East Cote Blanche Bays-
336 PM CDT Thu Apr 18 2024

.TONIGHT...Southeast winds 5 to 10 knots, becoming south late.
Bay and inland waters light chop. Patchy fog after midnight.
.FRIDAY...South winds around 5 knots, increasing to 5 to 10 knots
in the afternoon. Bay and inland waters light chop. Patchy fog in
the morning.
.FRIDAY NIGHT...South winds around 5 knots. Bay and inland waters
smooth.
.SATURDAY...East winds around 5 knots, becoming south in the
afternoon. Bay and inland waters light chop.
.SATURDAY NIGHT...Southeast winds around 5 knots. Bay and inland
waters smooth. A chance of showers and thunderstorms after
midnight.
.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, mainly in the
morning.
.SUNDAY NIGHT...Northeast winds 10 to 15 knots with gusts up to
20 knots. Bay and inland waters choppy.
.MONDAY...Northeast winds 10 to 15 knots, becoming east 5 to
10 knots in the afternoon. Bay and inland waters choppy.
.MONDAY NIGHT...East winds 5 to 10 knots. Bay and inland waters
light chop.
.TUESDAY...Southeast winds 5 to 10 knots. Bay and inland waters
light chop. A slight chance of showers and thunderstorms in the
afternoon.
.TUESDAY NIGHT...Southeast winds 5 to 10 knots. Bay and inland
waters light chop.

Winds and waves higher in and near thunderstorms.

$$

GMZ450-191015-
Coastal waters from Cameron LA to High Island TX out 20 NM-
336 PM CDT Thu Apr 18 2024

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

Winds and seas higher in and near thunderstorms.

$$

GMZ452-191015-
Coastal waters from Intracoastal City to Cameron LA out 20 NM-
336 PM CDT Thu Apr 18 2024

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

Winds and seas higher in and near thunderstorms.

$$

GMZ455-191015-
Coastal waters from Lower Atchafalaya River to Intracoastal City
LA out 20 NM-
336 PM CDT Thu Apr 18 2024

.TONIGHT...South winds 5 to 10 knots. Seas 1 to 2 feet. Patchy
fog after midnight.
.FRIDAY...South winds around 5 knots. Seas 1 to 2 feet in the
morning, then 1 foot or less. Patchy fog in the morning.
.FRIDAY NIGHT...South winds around 5 knots. Seas 1 foot or less.
.SATURDAY...Southeast winds around 5 knots, increasing to 5 to
10 knots in the afternoon. Seas 1 foot or less.
.SATURDAY NIGHT...Southeast winds around 5 knots. Seas 1 foot or
less. A chance of showers and thunderstorms after midnight.
.SUNDAY...North winds 5 to 10 knots, increasing to 10 to 15 knots
with gusts up to 20 knots in the afternoon. Seas 1 foot or less,
then around 2 feet in the afternoon. A chance of thunderstorms.
Showers, mainly in the morning.
.SUNDAY NIGHT...Northeast winds 15 to 20 knots with gusts up to
25 knots. Seas 2 to 3 feet.
.MONDAY...Northeast winds 10 to 15 knots, becoming east 5 to
10 knots in the afternoon. Seas around 2 feet.
.MONDAY NIGHT...East winds 5 to 10 knots. Seas 1 foot or less,
then around 2 feet after midnight.
.TUESDAY...Southeast winds around 10 knots. Seas around 2 feet in
the morning, then 1 foot or less. A slight chance of showers and
thunderstorms in the afternoon.
.TUESDAY NIGHT...Southeast winds around 10 knots. Seas around
2 feet.

Winds and seas higher in and near thunderstorms.

$$

GMZ470-191015-
Coastal waters from Cameron LA to High Island TX from 20 to 60 NM-
336 PM CDT Thu Apr 18 2024

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

Winds and seas higher in and near thunderstorms.

$$

GMZ472-191015-
Coastal waters from Intracoastal City to Cameron LA from 20 to
60 NM-
336 PM CDT Thu Apr 18 2024

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

Winds and seas higher in and near thunderstorms.

$$

GMZ475-191015-
Coastal waters from Lower Atchafalaya River to Intracoastal City
LA from 20 to 60 NM-
336 PM CDT Thu Apr 18 2024

.TONIGHT...South winds 5 to 10 knots. Seas 2 to 3 feet. Patchy
fog late.
.FRIDAY...Southeast winds 5 to 10 knots. Seas 2 to 3 feet. Patchy
fog in the morning.
.FRIDAY NIGHT...Southeast winds 5 to 10 knots. Seas 2 to 3 feet.
.SATURDAY...Southeast winds 5 to 10 knots. Seas around 2 feet.
.SATURDAY NIGHT...Southeast winds 5 to 10 knots. Seas around
2 feet. A chance of showers and thunderstorms after midnight.
.SUNDAY...South winds 5 to 10 knots, becoming north 10 to
15 knots with gusts up to 20 knots in the afternoon. Seas 2 to
3 feet. A chance of thunderstorms. Showers likely, mainly in the
morning.
.SUNDAY NIGHT...Northeast winds 15 to 20 knots with gusts up to
25 knots. Seas 2 to 4 feet.
.MONDAY...Northeast winds 10 to 15 knots. Seas 2 to 4 feet.
.MONDAY NIGHT...East winds 10 to 15 knots. Seas 2 to 3 feet.
.TUESDAY...Southeast winds around 10 knots. Seas around 2 feet. A
slight chance of showers and thunderstorms in the afternoon.
.TUESDAY NIGHT...Southeast winds around 10 knots. Seas around
2 feet.

Winds and seas higher in and near thunderstorms.

$$


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