Coastal Waters Forecast
Issued by NWS Lake Charles, LA

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FZUS54 KLCH 190902
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Coastal Waters Forecast
National Weather Service Lake Charles LA
402 AM CDT Fri Apr 19 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.

GMZ400-192130-
402 AM CDT Fri Apr 19 2024

.SYNOPSIS...
Generally light onshore flow will continue through tonight. A weak
front will stall over the region by Saturday, with winds remaining
southeast to east. Shower activity will increase late Saturday
into early Sunday as a disturbance aloft moves into the area,
while the front moves south across the coastal waters. Modest to
strong offshore winds will develop in its wake Sunday morning and
continue into early Monday before diminishing.

$$

GMZ430-192130-
Sabine Lake-
402 AM CDT Fri Apr 19 2024

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

Winds and waves higher in and near thunderstorms.

$$

GMZ432-192130-
Calcasieu Lake-
402 AM CDT Fri Apr 19 2024

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

Winds and waves higher in and near thunderstorms.

$$

GMZ435-192130-
Vermilion and West Cote Blanche Bays-
402 AM CDT Fri Apr 19 2024

.TODAY...Southeast winds around 5 knots, becoming south this
afternoon. Bay waters light chop. Patchy fog early this morning.
.TONIGHT...South winds 5 to 10 knots, becoming southeast after
midnight. Bay waters light chop. Patchy fog after midnight.
.SATURDAY...Southeast winds around 5 knots, becoming south in the
afternoon. Bay waters light chop. Patchy fog in the morning.
.SATURDAY NIGHT...Southeast winds 5 to 10 knots, becoming
northeast after midnight. Bay waters light chop. Showers likely
with a slight chance of thunderstorms after midnight.
.SUNDAY...North winds 10 to 15 knots with gusts up to 20 knots.
Bay waters choppy. A slight chance of thunderstorms. Showers
likely, 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, 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...Southeast winds 5 to 10 knots. Bay waters light chop.
.TUESDAY NIGHT...Southeast winds 5 to 10 knots. Bay waters light
chop.

Winds and waves higher in and near thunderstorms.

$$

GMZ436-192130-
Atchafalaya and East Cote Blanche Bays-
402 AM CDT Fri Apr 19 2024

.TODAY...Southeast winds around 5 knots, becoming south this
afternoon. Bay and inland waters light chop. Patchy fog early
this morning.
.TONIGHT...Southeast 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. Patchy fog in the
morning.
.SATURDAY NIGHT...Southeast winds around 5 knots, becoming
northeast around 5 knots after midnight. Bay and inland waters
smooth. A chance of showers with a slight chance of 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 slight 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, diminishing to 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.
.TUESDAY NIGHT...Southeast winds 5 to 10 knots. Bay and inland
waters light chop.

Winds and waves higher in and near thunderstorms.

$$

GMZ450-192130-
Coastal waters from Cameron LA to High Island TX out 20 NM-
402 AM CDT Fri Apr 19 2024

.TODAY...Southeast winds 5 to 10 knots. Seas around 2 feet.
Patchy fog early this morning.
.TONIGHT...Southeast winds 10 to 15 knots. Seas around 2 feet.
Patchy fog after midnight.
.SATURDAY...Southeast winds 5 to 10 knots, increasing to 10 to
15 knots in the afternoon. Seas around 2 feet. Patchy fog in the
morning.
.SATURDAY NIGHT...East winds 10 to 15 knots, becoming northeast
after midnight. Seas around 2 feet. A slight chance of showers in
the evening, then showers likely with a slight chance of
thunderstorms after midnight.
.SUNDAY...North winds 15 to 20 knots, increasing to 20 to
25 knots in the afternoon. Seas 2 to 4 feet. A chance of showers
with a slight chance of thunderstorms in the morning.
.SUNDAY NIGHT...Northeast winds 20 to 25 knots, diminishing to
15 to 20 knots after midnight. Seas 2 to 4 feet.
.MONDAY...Northeast winds 15 to 20 knots, becoming east 10 to
15 knots in the afternoon. Seas 2 to 4 feet.
.MONDAY NIGHT...Southeast winds around 10 knots. Seas around
2 feet.
.TUESDAY...Southeast winds around 10 knots. Seas around 2 feet.
.TUESDAY NIGHT...Southeast winds 10 to 15 knots. Seas around
2 feet.

Winds and seas higher in and near thunderstorms.

$$

GMZ452-192130-
Coastal waters from Intracoastal City to Cameron LA out 20 NM-
402 AM CDT Fri Apr 19 2024

.TODAY...Southeast winds 5 to 10 knots. Seas around 2 feet.
Patchy fog early this morning.
.TONIGHT...Southeast winds 10 to 15 knots, becoming south 5 to
10 knots after midnight. Seas around 2 feet. Patchy fog after
midnight.
.SATURDAY...Southeast winds 5 to 10 knots. Seas around 2 feet.
Patchy fog in the morning.
.SATURDAY NIGHT...Southeast winds 10 to 15 knots, becoming
northeast after midnight. Seas around 2 feet. A slight chance of
showers in the evening, then showers likely with a slight chance
of thunderstorms after midnight.
.SUNDAY...North winds 15 to 20 knots, increasing to 20 to
25 knots in the afternoon. Seas 2 to 4 feet. A slight chance of
thunderstorms. Showers likely, mainly 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 around 10 knots. Seas around 2 feet.
.TUESDAY NIGHT...Southeast winds 10 to 15 knots. Seas around
2 feet.

Winds and seas higher in and near thunderstorms.

$$

GMZ455-192130-
Coastal waters from Lower Atchafalaya River to Intracoastal City
LA out 20 NM-
402 AM CDT Fri Apr 19 2024

.TODAY...Southeast winds around 5 knots, increasing to 5 to
10 knots this afternoon. Seas 1 to 2 feet. Patchy fog early this
morning.
.TONIGHT...Southeast 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. Patchy fog in the
morning.
.SATURDAY NIGHT...Southeast winds around 5 knots. Seas 1 foot or
less. A chance of showers with a slight chance of thunderstorms
after midnight.
.SUNDAY...North winds 10 to 15 knots. Seas 1 to 2 feet. A slight
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 15 to 20 knots, diminishing to 10 to
15 knots in the afternoon. Seas 2 to 3 feet.
.MONDAY NIGHT...East winds 5 to 10 knots. Seas 1 foot or less.
.TUESDAY...Southeast winds around 10 knots. Seas 1 foot or less,
then around 2 feet in the afternoon.
.TUESDAY NIGHT...Southeast winds 5 to 10 knots. Seas around
2 feet.

Winds and seas higher in and near thunderstorms.

$$

GMZ470-192130-
Coastal waters from Cameron LA to High Island TX from 20 to 60 NM-
402 AM CDT Fri Apr 19 2024

.TODAY...Southeast winds 5 to 10 knots. Seas 2 to 3 feet.
.TONIGHT...Southeast winds around 10 knots. Seas 2 to 3 feet.
.SATURDAY...Southeast winds 5 to 10 knots. Seas 2 to 3 feet.
.SATURDAY NIGHT...East winds around 10 knots. Seas 2 to 3 feet. A
slight chance of showers in the evening, then showers likely with
a slight chance of thunderstorms after midnight.
.SUNDAY...Northeast winds 15 to 20 knots, becoming north 20 to
25 knots in the afternoon. Seas 2 to 4 feet, building to 4 to
6 feet, occasionally to 8 feet in the afternoon. A slight chance
of thunderstorms. Showers likely, mainly in the morning.
.SUNDAY NIGHT...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, becoming east 10 to
15 knots in the afternoon. Seas 4 to 6 feet, occasionally to
8 feet, subsiding to 2 to 4 feet in the afternoon.
.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 in the afternoon.
.TUESDAY NIGHT...Southeast winds 10 to 15 knots. Seas 2 to
3 feet.

Winds and seas higher in and near thunderstorms.

$$

GMZ472-192130-
Coastal waters from Intracoastal City to Cameron LA from 20 to
60 NM-
402 AM CDT Fri Apr 19 2024

.TODAY...Southeast winds 5 to 10 knots. Seas 2 to 3 feet.
.TONIGHT...Southeast winds 5 to 10 knots. Seas 2 to 3 feet.
.SATURDAY...Southeast winds 5 to 10 knots. Seas around 2 feet.
Patchy fog in the morning.
.SATURDAY NIGHT...East winds 5 to 10 knots. Seas around 2 feet. A
slight chance of showers in the evening, then showers likely with
a slight chance of thunderstorms after midnight.
.SUNDAY...North winds 15 to 20 knots with gusts up to 25 knots.
Seas 3 to 5 feet, occasionally to 6 feet. Showers likely with a
chance of thunderstorms in the morning, then a chance of showers
with a slight chance of thunderstorms in the afternoon.
.SUNDAY NIGHT...Northeast winds 20 to 25 knots with gusts up to
30 knots. Seas 5 to 7 feet, occasionally to 9 feet.
.MONDAY...Northeast winds 15 to 20 knots, diminishing to 10 to
15 knots in the afternoon. Seas 3 to 5 feet, occasionally to
6 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 morning.
.TUESDAY NIGHT...Southeast winds around 10 knots. Seas around
2 feet.

Winds and seas higher in and near thunderstorms.

$$

GMZ475-192130-
Coastal waters from Lower Atchafalaya River to Intracoastal City
LA from 20 to 60 NM-
402 AM CDT Fri Apr 19 2024

.TODAY...Southeast winds 5 to 10 knots. Seas 2 to 3 feet.
.TONIGHT...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 with a slight chance of thunderstorms
after midnight.
.SUNDAY...North winds 5 to 10 knots, increasing to 15 to 20 knots
in the afternoon. Seas 2 to 3 feet. A slight chance of
thunderstorms. Showers likely, mainly in the morning.
.SUNDAY NIGHT...Northeast winds 15 to 20 knots with gusts up to
25 knots. Seas 3 to 5 feet, occasionally to 6 feet.
.MONDAY...Northeast winds 15 to 20 knots, diminishing to 10 to
15 knots in the afternoon. Seas 3 to 5 feet, occasionally to
6 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 morning.
.TUESDAY NIGHT...Southeast winds around 10 knots. Seas around
2 feet.

Winds and seas higher in and near thunderstorms.

$$


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