Coastal Waters Forecast
Issued by NWS Lake Charles, LA

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FZUS54 KLCH 232104
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Coastal Waters Forecast
National Weather Service Lake Charles LA
404 PM CDT Mon Sep 23 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.

GMZ400-240930-
404 PM CDT Mon Sep 23 2024

.SYNOPSIS...
A weak pressure gradient at the surface will keep winds light
with a general onshore component today through Tuesday. Showers
and thunderstorms are expected Wednesday as a frontal boundary
pushes through the area. Offshore winds will increase in the wake
of the front Wednesday.

The National Hurricane Center continues to monitor Potential
Tropical Cyclone #9 which is expected to become a major hurricane
in the next few days. Winds and seas late Wednesday through the
end of the week will be highly dependent on the track and
intensity of this disturbance, but are likely to increase through
the latter half of the week. It is possible that we will need
Small Craft Advisories for the eastern and 20-60nm zones mid this
week.

$$

GMZ430-240930-
Sabine Lake-
404 PM CDT Mon Sep 23 2024

.TONIGHT...South winds around 5 knots. Lake waters smooth.
.TUESDAY...Northwest winds around 5 knots, becoming south in the
afternoon. Lake waters smooth. A slight chance of showers in the
morning, then a chance of showers and thunderstorms in the
afternoon.
.TUESDAY NIGHT...South winds around 5 knots, becoming north after
midnight. Lake waters smooth. A chance of showers and
thunderstorms.
.WEDNESDAY...Northeast winds 5 to 10 knots. Lake waters light
chop. A chance of showers and thunderstorms, mainly in the
morning.
.WEDNESDAY NIGHT...North winds 5 to 10 knots. Lake waters light
chop.
.THURSDAY...North winds 10 to 15 knots. Lake waters choppy.
.THURSDAY NIGHT...Northwest winds 5 to 10 knots. Lake waters
light chop.
.FRIDAY...Northwest winds 5 to 10 knots. Lake waters light chop.
.FRIDAY NIGHT...West winds 5 to 10 knots. Lake waters light chop.
.SATURDAY...West winds 5 to 10 knots. Lake waters light chop.
.SATURDAY NIGHT...West winds around 5 knots. Lake waters smooth.

Winds and waves higher in and near thunderstorms.

$$

GMZ432-240930-
Calcasieu Lake-
404 PM CDT Mon Sep 23 2024

.TONIGHT...South winds 5 to 10 knots, becoming southwest late.
Lake waters light chop.
.TUESDAY...North winds around 5 knots, becoming south in the
afternoon. Lake waters smooth. A chance of showers and
thunderstorms in the afternoon.
.TUESDAY NIGHT...Southwest winds around 5 knots, becoming north
after midnight. Lake waters smooth. A slight chance of showers
and thunderstorms.
.WEDNESDAY...Northeast winds 5 to 10 knots. Lake waters light
chop. A chance of showers and thunderstorms, mainly in the
morning.
.WEDNESDAY NIGHT...North winds 10 to 15 knots. Lake waters
choppy.
.THURSDAY...North winds 10 to 15 knots with gusts up to 20 knots.
Lake waters choppy.
.THURSDAY NIGHT...Northwest winds 10 to 15 knots. Lake waters
choppy.
.FRIDAY...Northwest winds around 10 knots. Lake waters light
chop.
.FRIDAY NIGHT...West winds 5 to 10 knots. Lake waters light chop.
.SATURDAY...West winds 5 to 10 knots. Lake waters light chop.
.SATURDAY NIGHT...West winds 5 to 10 knots. Lake waters light
chop.

Winds and waves higher in and near thunderstorms.

$$

GMZ435-240930-
Vermilion and West Cote Blanche Bays-
404 PM CDT Mon Sep 23 2024

.TONIGHT...South winds around 5 knots. Bay waters smooth.
.TUESDAY...East winds around 5 knots, becoming south in the
afternoon. Bay waters smooth.
.TUESDAY NIGHT...Southwest winds around 5 knots, becoming
northwest after midnight. Bay waters smooth.
.WEDNESDAY...North winds 5 to 10 knots. Bay waters light chop. A
slight chance of showers and thunderstorms in the morning, then a
chance of showers and thunderstorms in the afternoon.
.WEDNESDAY NIGHT...North winds 10 to 15 knots. Bay waters choppy.
.THURSDAY...North winds 15 to 20 knots with gusts up to 25 knots.
Bay waters rough.
.THURSDAY NIGHT...Northwest winds 15 to 20 knots, diminishing to
10 to 15 knots after midnight. Bay waters rough.
.FRIDAY...West winds 10 to 15 knots. Bay waters choppy.
.FRIDAY NIGHT...West winds 10 to 15 knots. Bay waters choppy.
.SATURDAY...West winds around 10 knots. Bay waters light chop.
.SATURDAY NIGHT...Southwest winds 5 to 10 knots. Bay waters light
chop.

Winds and waves higher in and near thunderstorms.

$$

GMZ436-240930-
Atchafalaya and East Cote Blanche Bays-
404 PM CDT Mon Sep 23 2024

.TONIGHT...Southeast winds around 5 knots. Bay waters smooth.
.TUESDAY...East winds around 5 knots, becoming south in the
afternoon. Bay waters smooth.
.TUESDAY NIGHT...South winds around 5 knots, becoming northeast
after midnight. Bay waters smooth.
.WEDNESDAY...North winds 5 to 10 knots. Bay waters light chop. A
chance of showers and thunderstorms in the afternoon.
.WEDNESDAY NIGHT...North winds 10 to 15 knots. Bay waters choppy.
A slight chance of showers and thunderstorms.
.THURSDAY...North winds around 15 knots with gusts up to
20 knots. Bay waters choppy.
.THURSDAY NIGHT...Northwest winds 10 to 15 knots. Bay waters
choppy.
.FRIDAY...West winds around 10 knots. Bay waters light chop.
.FRIDAY NIGHT...West winds 5 to 10 knots. Bay waters light chop.
.SATURDAY...West winds 5 to 10 knots. Bay waters light chop.
.SATURDAY NIGHT...Southwest winds 5 to 10 knots. Bay waters light
chop.

Winds and waves higher in and near thunderstorms.

$$

GMZ450-240930-
Coastal waters from Cameron LA to High Island TX out 20 NM-
404 PM CDT Mon Sep 23 2024

.TONIGHT...South winds 5 to 10 knots. Seas around 2 feet. Wave
Detail: Southeast 2 feet at 5 seconds.
.TUESDAY...Northwest winds around 5 knots, becoming southeast in
the afternoon. Seas 1 foot or less. Wave Detail: Southeast 1 foot
at 5 seconds. A slight chance of showers in the morning, then a
chance of showers and thunderstorms in the afternoon.
.TUESDAY NIGHT...South winds around 5 knots, becoming northeast
after midnight. Seas 1 foot or less. Wave Detail: Southeast
1 foot at 4 seconds. A slight chance of showers and thunderstorms
in the evening, then a chance of showers and thunderstorms after
midnight.
.WEDNESDAY...Northeast winds 10 to 15 knots. Seas around 2 feet.
Wave Detail: Northeast 2 feet at 3 seconds. A chance of showers
and thunderstorms, mainly in the morning.
.WEDNESDAY NIGHT...Northeast winds 10 to 15 knots, becoming north
15 to 20 knots after midnight. Seas 2 to 3 feet. Wave Detail:
Northeast 3 feet at 4 seconds.
.THURSDAY...North winds 15 to 20 knots with gusts up to 25 knots.
Seas 2 to 4 feet. Wave Detail: Northeast 3 feet at 4 seconds.
.THURSDAY NIGHT...Northwest winds 10 to 15 knots. Seas 2 to
3 feet.
.FRIDAY...Northwest winds 10 to 15 knots. Seas 2 to 3 feet.
.FRIDAY NIGHT...West winds 10 to 15 knots. Seas around 2 feet.
.SATURDAY...West winds 10 to 15 knots. Seas around 2 feet.
.SATURDAY NIGHT...West winds around 10 knots. Seas around 2 feet.

Winds and seas higher in and near thunderstorms.

$$

GMZ452-240930-
Coastal waters from Intracoastal City to Cameron LA out 20 NM-
404 PM CDT Mon Sep 23 2024

.TONIGHT...Southeast winds 5 to 10 knots. Seas around 2 feet.
Wave Detail: Southeast 1 foot at 5 seconds.
.TUESDAY...Southeast winds around 5 knots. Seas 1 foot or less.
Wave Detail: Southeast 1 foot at 5 seconds. A slight chance of
showers and thunderstorms in the afternoon.
.TUESDAY NIGHT...South winds around 5 knots, becoming northeast
after midnight. Seas 1 foot or less. Wave Detail: Southeast
1 foot at 4 seconds. A slight chance of showers and thunderstorms
after midnight.
.WEDNESDAY...Northeast winds 10 to 15 knots. Seas around 2 feet.
Wave Detail: North 2 feet at 3 seconds. A slight chance of
thunderstorms. A chance of showers, mainly in the morning.
.WEDNESDAY NIGHT...North winds 15 to 20 knots with gusts up to
25 knots. Seas 2 to 4 feet. Wave Detail: North 3 feet at
4 seconds. A slight chance of showers and thunderstorms in the
evening.
.THURSDAY...North winds 15 to 20 knots with gusts up to 25 knots.
Seas 2 to 4 feet. Wave Detail: North 4 feet at 5 seconds.
.THURSDAY NIGHT...Northwest winds 15 to 20 knots with gusts up to
25 knots. Seas 2 to 4 feet.
.FRIDAY...Northwest winds 10 to 15 knots. Seas 2 to 3 feet.
.FRIDAY NIGHT...West winds 10 to 15 knots. Seas 2 to 3 feet.
.SATURDAY...West winds 10 to 15 knots. Seas around 2 feet.
.SATURDAY NIGHT...West winds around 10 knots. Seas around 2 feet.

Winds and seas higher in and near thunderstorms.

$$

GMZ455-240930-
Coastal waters from Lower Atchafalaya River to Intracoastal City
LA out 20 NM-
404 PM CDT Mon Sep 23 2024

.TONIGHT...Southeast winds around 5 knots. Seas 1 foot or less.
.TUESDAY...Southeast winds around 5 knots. Seas 1 foot or less.
.TUESDAY NIGHT...Southeast winds around 5 knots, becoming
northeast after midnight. Seas 1 foot or less.
.WEDNESDAY...Northeast winds 5 to 10 knots. Seas 1 to 2 feet.
Wave Detail: Northeast 1 foot at 3 seconds. A slight chance of
showers and thunderstorms in the morning, then a chance of
showers and thunderstorms in the afternoon.
.WEDNESDAY NIGHT...North winds 10 to 15 knots, increasing to
15 to 20 knots after midnight. Seas 2 to 3 feet. Wave Detail:
North 3 feet at 3 seconds. A slight chance of thunderstorms. A
chance of showers, mainly in the evening.
.THURSDAY...North winds 15 to 20 knots with gusts up to 25 knots.
Seas 2 to 3 feet. Wave Detail: North 3 feet at 4 seconds.
.THURSDAY NIGHT...Northwest winds 15 to 20 knots with gusts up to
25 knots. Seas 2 to 4 feet.
.FRIDAY...West winds 10 to 15 knots. Seas 2 to 3 feet.
.FRIDAY NIGHT...West winds 10 to 15 knots. Seas around 2 feet.
.SATURDAY...West winds around 10 knots. Seas around 2 feet.
.SATURDAY NIGHT...West winds 5 to 10 knots. Seas around 2 feet.

Winds and seas higher in and near thunderstorms.

$$

GMZ470-240930-
Coastal waters from Cameron LA to High Island TX from 20 to 60 NM-
404 PM CDT Mon Sep 23 2024

.TONIGHT...Southeast winds 5 to 10 knots. Seas around 2 feet.
Wave Detail: Southeast 2 feet at 5 seconds.
.TUESDAY...East winds around 5 knots. Seas around 2 feet in the
morning, then 1 foot or less. Wave Detail: Southeast 2 feet at
5 seconds, becoming southeast 1 foot at 5 seconds. A slight
chance of showers. A slight chance of thunderstorms in the
afternoon.
.TUESDAY NIGHT...Southeast winds around 5 knots, becoming
northeast after midnight. Seas 1 foot or less. Wave Detail:
Southeast 1 foot at 5 seconds. A slight chance of showers and
thunderstorms after midnight.
.WEDNESDAY...Northeast winds 10 to 15 knots. Seas 2 to 3 feet.
Wave Detail: Northeast 3 feet at 4 seconds. A chance of showers
and thunderstorms, mainly in the morning.
.WEDNESDAY NIGHT...Northeast winds 15 to 20 knots with gusts up
to 25 knots. Seas 2 to 3 feet, building to 3 to 5 feet,
occasionally to 6 feet after midnight. Wave Detail: Northeast
3 feet at 4 seconds, becoming northeast 5 feet at 5 seconds. A
slight chance of showers and thunderstorms in the evening.
.THURSDAY...North winds 15 to 20 knots with gusts up to 30 knots.
Seas 4 to 6 feet, occasionally to 8 feet. Wave Detail: Northeast
6 feet at 6 seconds.
.THURSDAY NIGHT...North winds 15 to 20 knots. Seas 4 to 6 feet,
occasionally to 8 feet.
.FRIDAY...Northwest winds 10 to 15 knots. Seas 3 to 5 feet,
occasionally to 6 feet.
.FRIDAY NIGHT...West winds 10 to 15 knots. Seas 2 to 3 feet.
.SATURDAY...West winds 10 to 15 knots. Seas 2 to 3 feet.
.SATURDAY NIGHT...Southwest winds around 10 knots. Seas around
2 feet.

Winds and seas higher in and near thunderstorms.

$$

GMZ472-240930-
Coastal waters from Intracoastal City to Cameron LA from 20 to
60 NM-
404 PM CDT Mon Sep 23 2024

.TONIGHT...Southeast winds 5 to 10 knots. Seas around 2 feet.
Wave Detail: Southeast 2 feet at 5 seconds.
.TUESDAY...East winds around 5 knots. Seas around 2 feet in the
morning, then 1 foot or less. Wave Detail: Southeast 2 feet at
5 seconds, becoming southeast 1 foot at 5 seconds.
.TUESDAY NIGHT...Southeast winds around 5 knots, becoming
northeast after midnight. Seas 1 foot or less. Wave Detail:
Southeast 1 foot at 5 seconds. A slight chance of showers and
thunderstorms after midnight.
.WEDNESDAY...Northeast winds 10 to 15 knots with gusts up to
20 knots. Seas 2 to 3 feet. Wave Detail: Northeast 3 feet at
4 seconds. A slight chance of thunderstorms. A chance of showers,
mainly in the morning.
.WEDNESDAY NIGHT...Northeast winds 15 to 20 knots, becoming north
20 to 25 knots after midnight. Seas 2 to 4 feet, building to 4 to
6 feet, occasionally to 8 feet after midnight. Wave Detail:
Northeast 4 feet at 5 seconds, becoming north 6 feet at
6 seconds. A slight chance of showers and thunderstorms.
.THURSDAY...North winds 20 to 25 knots with gusts up to 30 knots.
Seas 5 to 8 feet, occasionally to 10 feet. Wave Detail: North
7 feet at 6 seconds.
.THURSDAY NIGHT...North winds 15 to 20 knots with gusts up to
25 knots. Seas 5 to 8 feet, occasionally to 10 feet.
.FRIDAY...Northwest winds 10 to 15 knots. Seas 4 to 6 feet,
occasionally to 8 feet.
.FRIDAY NIGHT...West winds 10 to 15 knots. Seas 2 to 4 feet.
.SATURDAY...West winds 10 to 15 knots. Seas 2 to 3 feet.
.SATURDAY NIGHT...West winds around 10 knots. Seas around 2 feet.

Winds and seas higher in and near thunderstorms.

$$

GMZ475-240930-
Coastal waters from Lower Atchafalaya River to Intracoastal City
LA from 20 to 60 NM-
404 PM CDT Mon Sep 23 2024

.TONIGHT...Southeast winds 5 to 10 knots. Seas around 2 feet.
Wave Detail: Southeast 2 feet at 5 seconds.
.TUESDAY...East winds around 5 knots. Seas around 2 feet. Wave
Detail: Southeast 2 feet at 5 seconds.
.TUESDAY NIGHT...East winds 5 to 10 knots. Seas 1 foot or less,
then around 2 feet after midnight. Wave Detail: East 1 foot at
4 seconds.
.WEDNESDAY...Northeast winds 10 to 15 knots with gusts up to
20 knots. Seas 2 to 3 feet. Wave Detail: Northeast 3 feet at
4 seconds. A slight chance of thunderstorms. A slight chance of
showers in the morning, then a chance of showers in the
afternoon.
.WEDNESDAY NIGHT...Northeast winds 15 to 20 knots, becoming north
20 to 25 knots after midnight. Seas 4 to 6 feet, occasionally to
8 feet. Wave Detail: North 6 feet at 6 seconds. A chance of
showers. A chance of thunderstorms, mainly in the evening.
.THURSDAY...North winds 20 to 25 knots with gusts up to 30 knots.
Seas 6 to 9 feet, occasionally to 11 feet. Wave Detail: Northeast
8 feet at 10 seconds and north 6 feet at 5 seconds. A slight
chance of thunderstorms in the morning. A slight chance of
showers.
.THURSDAY NIGHT...Northwest winds 15 to 20 knots with gusts up to
25 knots. Seas 5 to 8 feet, occasionally to 10 feet.
.FRIDAY...Northwest winds 10 to 15 knots. Seas 4 to 6 feet,
occasionally to 8 feet.
.FRIDAY NIGHT...West winds 10 to 15 knots. Seas 2 to 4 feet.
.SATURDAY...West winds around 10 knots. Seas 2 to 3 feet.
.SATURDAY NIGHT...West winds around 10 knots. Seas around 2 feet.
A slight chance of showers after midnight.

Winds and seas higher in and near thunderstorms.

$$