740
FZUS54 KLCH 250915
CWFLCH

Coastal Waters Forecast
National Weather Service Lake Charles LA
415 AM CDT Wed Sep 25 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.

GMZ400-252215-
415 AM CDT Wed Sep 25 2024

.SYNOPSIS...

Scattered showers and thunderstorms will be possible again
Wednesday afternoon as a cold front pushes slowly through the area.
Offshore winds will increase in the wake of the front Wednesday.

TS Helene is expected to become a major hurricane over the eastern
Gulf of Mexico on Thursday. Based on the current forecast track and
intensity, offshore flow in the 20-30 knot range and increasing
local seas in the 6 to 10ft range are expected to develop Thursday
as the cyclone approaches the coast of the Florida panhandle and
moves inland. A small craft advisory is likely before these
conditions ease and abate Friday morning while winds remain out of
the north.

$$

GMZ430-252215-
Sabine Lake-
415 AM CDT Wed Sep 25 2024

.TODAY...North winds around 5 knots, becoming southeast around
5 knots late. Lake waters smooth. A chance of showers and
thunderstorms late this morning and afternoon.
.TONIGHT...Northeast winds 5 to 10 knots, increasing to 10 to
15 knots with gusts up to 20 knots after midnight. Lake waters
choppy. A chance of showers and thunderstorms in the evening.
.THURSDAY...North winds 10 to 15 knots with gusts up to 20 knots.
Lake waters choppy.
.THURSDAY NIGHT...North 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...Northwest winds around 5 knots. Lake waters
smooth.
.SUNDAY...Northwest winds around 5 knots. Lake waters smooth.
.SUNDAY NIGHT...Northwest winds around 5 knots. Lake waters
smooth.

Winds and waves higher in and near thunderstorms.

$$

GMZ432-252215-
Calcasieu Lake-
415 AM CDT Wed Sep 25 2024

.TODAY...Northeast winds around 5 knots. Lake waters smooth. A
chance of showers and thunderstorms late this morning and
afternoon.
.TONIGHT...Northeast winds 5 to 10 knots, increasing to 10 to
15 knots with gusts up to 25 knots after midnight. Lake waters
choppy. A chance of showers and thunderstorms in the evening.
.THURSDAY...North winds around 15 knots with gusts up to
25 knots. Lake waters choppy.
.THURSDAY NIGHT...North 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.
.SUNDAY...Northwest winds around 5 knots. Lake waters smooth.
.SUNDAY NIGHT...Northwest winds around 5 knots. Lake waters
smooth.

Winds and waves higher in and near thunderstorms.

$$

GMZ435-252215-
Vermilion and West Cote Blanche Bays-
415 AM CDT Wed Sep 25 2024

.TODAY...North winds around 5 knots. Bay waters smooth. A slight
chance of showers and thunderstorms this afternoon.
.TONIGHT...Northeast winds 5 to 10 knots, increasing to 15 to
20 knots after midnight. Bay waters rough. A chance of showers
and thunderstorms in the evening.
.THURSDAY...North winds 15 to 20 knots with gusts up to 25 knots.
Bay waters rough.
.THURSDAY NIGHT...North winds 15 to 20 knots, becoming northwest
10 to 15 knots after midnight. Bay waters rough.
.FRIDAY...Northwest 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...West winds 5 to 10 knots. Bay waters light
chop.
.SUNDAY...West winds 5 to 10 knots. Bay waters light chop.
.SUNDAY NIGHT...West winds 5 to 10 knots, becoming northwest
after midnight. Bay waters light chop.

Winds and waves higher in and near thunderstorms.

$$

GMZ436-252215-
Atchafalaya and East Cote Blanche Bays-
415 AM CDT Wed Sep 25 2024

.TODAY...North winds around 5 knots. Bay waters smooth. A slight
chance of showers and thunderstorms early this afternoon. A
chance of thunderstorms with a slight chance of showers late.
.TONIGHT...Northeast winds 5 to 10 knots, increasing to 10 to
15 knots with gusts up to 20 knots after midnight. Bay waters
choppy. A chance of showers and thunderstorms in the evening.
.THURSDAY...North winds 15 to 20 knots with gusts up to 25 knots.
Bay waters rough.
.THURSDAY NIGHT...North winds 10 to 15 knots with gusts up to
25 knots. Bay waters choppy.
.FRIDAY...Northwest winds 10 to 15 knots. Bay waters choppy.
.FRIDAY NIGHT...West winds around 10 knots. Bay waters light
chop.
.SATURDAY...West winds around 10 knots. Bay waters light chop.
.SATURDAY NIGHT...West winds 5 to 10 knots. Bay waters light
chop.
.SUNDAY...West winds 5 to 10 knots. Bay waters light chop.
.SUNDAY NIGHT...West winds around 5 knots. Bay waters smooth.

Winds and waves higher in and near thunderstorms.

$$

GMZ450-252215-
Coastal waters from Cameron LA to High Island TX out 20 NM-
415 AM CDT Wed Sep 25 2024

.TODAY...North winds 5 to 10 knots, becoming southeast late. Seas
1 foot or less. Wave Detail: Northwest 1 foot at 4 seconds and
east 1 foot at 4 seconds. A chance of showers with a slight
chance of thunderstorms late this morning and early afternoon. A
chance of showers and thunderstorms late.
.TONIGHT...Northeast winds 10 to 15 knots, increasing to 15 to
20 knots with gusts up to 25 knots after midnight. Seas 2 to
4 feet. Wave Detail: Northeast 3 feet at 4 seconds. A chance of
showers and thunderstorms, mainly in the evening.
.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...North winds 15 to 20 knots, diminishing to
10 to 15 knots after midnight. Seas 2 to 4 feet. Wave Detail:
Northeast 3 feet at 6 seconds and north 2 feet at 3 seconds.
.FRIDAY...Northwest winds 10 to 15 knots. Seas 2 to 3 feet. Wave
Detail: Northwest 2 feet at 3 seconds and southeast 1 foot at
11 seconds.
.FRIDAY NIGHT...West winds 10 to 15 knots. Seas around 2 feet.
Wave Detail: West 2 feet at 3 seconds and southeast 1 foot at
10 seconds.
.SATURDAY...West winds 10 to 15 knots. Seas around 2 feet.
.SATURDAY NIGHT...West winds around 10 knots. Seas around 2 feet.
.SUNDAY...Northwest winds 5 to 10 knots. Seas around 2 feet in
the morning, then 1 foot or less.
.SUNDAY NIGHT...West winds 5 to 10 knots, becoming north after
midnight. Seas 1 foot or less.

Winds and seas higher in and near thunderstorms.

$$

GMZ452-252215-
Coastal waters from Intracoastal City to Cameron LA out 20 NM-
415 AM CDT Wed Sep 25 2024

.TODAY...Northeast winds 5 to 10 knots, becoming east late. Seas
1 foot or less. Wave Detail: West 1 foot at 2 seconds and east
1 foot at 4 seconds. A slight chance of showers and thunderstorms
late this morning and afternoon.
.TONIGHT...Northeast winds 10 to 15 knots, increasing to 20 to
25 knots after midnight. Seas 2 to 4 feet. Wave Detail: Northeast
3 feet at 4 seconds. A chance of showers and thunderstorms,
mainly in the evening.
.THURSDAY...North winds 20 to 25 knots. Seas 3 to 5 feet,
occasionally to 6 feet. Wave Detail: North 4 feet at 4 seconds.
.THURSDAY NIGHT...North winds 15 to 20 knots with gusts up to
25 knots. Seas 3 to 5 feet, occasionally to 6 feet. Wave Detail:
North 3 feet at 4 seconds and southeast 2 feet at 11 seconds.
.FRIDAY...Northwest winds 10 to 15 knots. Seas 2 to 4 feet. Wave
Detail: Northwest 3 feet at 4 seconds and south 1 foot at
11 seconds.
.FRIDAY NIGHT...West winds 10 to 15 knots. Seas 2 to 3 feet. Wave
Detail: West 2 feet at 4 seconds and southeast 1 foot at
10 seconds.
.SATURDAY...West winds 10 to 15 knots. Seas 2 to 3 feet.
.SATURDAY NIGHT...West winds around 10 knots. Seas around 2 feet.
.SUNDAY...West winds 5 to 10 knots. Seas around 2 feet.
.SUNDAY NIGHT...West winds 5 to 10 knots, becoming northwest
after midnight. Seas 1 foot or less, then around 2 feet after
midnight.

Winds and seas higher in and near thunderstorms.

$$

GMZ455-252215-
Coastal waters from Lower Atchafalaya River to Intracoastal City
LA out 20 NM-
415 AM CDT Wed Sep 25 2024

.TODAY...Northeast winds 5 to 10 knots. Seas 1 foot or less. Wave
Detail: Northeast 1 foot at 2 seconds. A slight chance of showers
early this morning. A slight chance of showers and thunderstorms
this afternoon.
.TONIGHT...Northeast winds 5 to 10 knots, increasing to 15 to
20 knots with gusts up to 25 knots after midnight. Seas 1 foot or
less, then 2 to 3 feet after midnight. Wave Detail: Northeast
1 foot at 2 seconds, becoming north 2 feet at 3 seconds. A chance
of showers and thunderstorms, mainly in the evening.
.THURSDAY...North winds 15 to 20 knots with gusts up to 30 knots.
Seas 2 to 4 feet. Wave Detail: North 3 feet at 4 seconds.
.THURSDAY NIGHT...North winds 15 to 20 knots. Gusts up to
30 knots in the evening. Seas 2 to 4 feet. Wave Detail: North
3 feet at 3 seconds and south 1 foot at 6 seconds.
.FRIDAY...Northwest winds 10 to 15 knots with gusts up to
20 knots. Seas 2 to 3 feet. Wave Detail: Northwest 2 feet at
3 seconds.
.FRIDAY NIGHT...West winds 10 to 15 knots. Seas around 2 feet.
Wave Detail: West 2 feet at 3 seconds.
.SATURDAY...West winds around 10 knots. Seas around 2 feet.
.SATURDAY NIGHT...West winds 5 to 10 knots. Seas around 2 feet in
the evening, then 1 foot or less.
.SUNDAY...West winds 5 to 10 knots. Seas 1 foot or less.
.SUNDAY NIGHT...West winds around 5 knots. Seas 1 foot or less.

Winds and seas higher in and near thunderstorms.

$$

GMZ470-252215-
Coastal waters from Cameron LA to High Island TX from 20 to 60 NM-
415 AM CDT Wed Sep 25 2024

.TODAY...Northeast winds 5 to 10 knots. Seas 1 foot or less, then
around 2 feet this afternoon. Wave Detail: Northwest 1 foot at
2 seconds and east 1 foot at 5 seconds, becoming northeast 2 feet
at 4 seconds. A slight chance of showers and thunderstorms late
this morning and afternoon.
.TONIGHT...Northeast winds 10 to 15 knots, increasing to 20 to
25 knots with gusts up to 30 knots after midnight. Seas around
2 feet, building to 3 to 5 feet, occasionally to 6 feet after
midnight. Wave Detail: Northeast 2 feet at 4 seconds, becoming
northeast 4 feet at 5 seconds. A chance of showers and
thunderstorms.
.THURSDAY...North winds 20 to 25 knots with gusts up to 30 knots.
Seas 5 to 7 feet, occasionally to 9 feet. Wave Detail: Northeast
6 feet at 6 seconds. A slight chance of showers in the morning.
.THURSDAY NIGHT...North winds 15 to 20 knots with gusts up to
25 knots. Seas 5 to 7 feet, occasionally to 9 feet. Wave Detail:
Northeast 6 feet at 7 seconds and north 3 feet at 4 seconds.
.FRIDAY...Northwest winds 10 to 15 knots with gusts up to
20 knots. Seas 3 to 5 feet, occasionally to 6 feet. Wave Detail:
Southeast 4 feet at 11 seconds and northwest 3 feet at 4 seconds.
.FRIDAY NIGHT...West winds 10 to 15 knots. Seas 2 to 3 feet. Wave
Detail: West 3 feet at 4 seconds and southeast 2 feet at
10 seconds.
.SATURDAY...West winds 10 to 15 knots. Seas 2 to 3 feet.
.SATURDAY NIGHT...West winds around 10 knots. Seas around 2 feet.
.SUNDAY...Northwest winds 5 to 10 knots. Seas around 2 feet.
.SUNDAY NIGHT...West winds 5 to 10 knots. Seas around 2 feet.

Winds and seas higher in and near thunderstorms.

$$

GMZ472-252215-
Coastal waters from Intracoastal City to Cameron LA from 20 to
60 NM-
415 AM CDT Wed Sep 25 2024

.TODAY...Northeast winds 5 to 10 knots. Seas around 2 feet. Wave
Detail: East 2 feet at 5 seconds. A slight chance of showers late
this morning. A slight chance of showers and thunderstorms early
this afternoon.
.TONIGHT...Northeast winds 10 to 15 knots, increasing to 20 to
25 knots with gusts up to 30 knots after midnight. Seas around
2 feet, building to 3 to 5 feet, occasionally to 6 feet after
midnight. Wave Detail: Northeast 2 feet at 4 seconds, becoming
northeast 5 feet at 5 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: North
7 feet at 6 seconds. A slight chance of showers in the morning.
.THURSDAY NIGHT...North winds 15 to 20 knots with gusts up to
30 knots. Seas 6 to 9 feet, occasionally to 11 feet, subsiding to
5 to 7 feet, occasionally to 9 feet after midnight. Wave Detail:
North 6 feet at 5 seconds and southeast 6 feet at 11 seconds,
becoming north 5 feet at 5 seconds and southeast 5 feet at
11 seconds.
.FRIDAY...Northwest winds 15 to 20 knots. Seas 4 to 6 feet,
occasionally to 8 feet. Wave Detail: Northwest 4 feet at
5 seconds and southeast 4 feet at 11 seconds.
.FRIDAY NIGHT...West winds 10 to 15 knots. Seas 2 to 4 feet. Wave
Detail: West 3 feet at 4 seconds and southeast 2 feet at
10 seconds.
.SATURDAY...West winds 10 to 15 knots. Seas 2 to 3 feet.
.SATURDAY NIGHT...West winds around 10 knots. Seas around 2 feet.
.SUNDAY...West winds 5 to 10 knots. Seas around 2 feet.
.SUNDAY NIGHT...West winds 5 to 10 knots. Seas around 2 feet.

Winds and seas higher in and near thunderstorms.

$$

GMZ475-252215-
Coastal waters from Lower Atchafalaya River to Intracoastal City
LA from 20 to 60 NM-
415 AM CDT Wed Sep 25 2024

.TODAY...Northeast winds 5 to 10 knots. Seas around 2 feet. Wave
Detail: Northeast 2 feet at 4 seconds.
.TONIGHT...Northeast winds 10 to 15 knots with gusts up to
20 knots, increasing to 20 to 25 knots with gusts up to 30 knots
after midnight. Seas 2 to 3 feet, building to 3 to 5 feet,
occasionally to 6 feet after midnight. Wave Detail: Northeast
3 feet at 5 seconds, becoming northeast 5 feet at 6 seconds. A
chance of showers and thunderstorms, mainly in the evening.
.THURSDAY...North winds 20 to 25 knots with gusts up to 30 knots.
Seas 7 to 10 feet, occasionally to 13 feet. Wave Detail: North
8 feet at 6 seconds. A slight chance of showers in the morning.
.THURSDAY NIGHT...North winds 20 to 25 knots, diminishing to
15 to 20 knots after midnight. Seas 7 to 10 feet, occasionally to
13 feet, subsiding to 5 to 8 feet, occasionally to 10 feet after
midnight. Wave Detail: North 6 feet at 6 seconds and southeast
5 feet at 11 seconds, becoming northwest 6 feet at 6 seconds and
southeast 5 feet at 11 seconds.
.FRIDAY...Northwest winds 15 to 20 knots. Seas 5 to 7 feet,
occasionally to 9 feet, subsiding to 3 to 5 feet, occasionally to
6 feet in the afternoon. Wave Detail: Northwest 5 feet at
5 seconds and southeast 4 feet at 11 seconds, becoming northwest
4 feet at 5 seconds and southeast 3 feet at 10 seconds.
.FRIDAY NIGHT...West winds 10 to 15 knots. Seas 2 to 4 feet. Wave
Detail: West 3 feet at 5 seconds and southeast 2 feet at
9 seconds.
.SATURDAY...West winds around 10 knots. Seas 2 to 3 feet.
.SATURDAY NIGHT...West winds around 10 knots. Seas around 2 feet.
.SUNDAY...West winds 5 to 10 knots. Seas around 2 feet.
.SUNDAY NIGHT...West winds 5 to 10 knots. Seas around 2 feet.

Winds and seas higher in and near thunderstorms.

$$