Coastal Waters Forecast
Issued by NWS Lake Charles, LA

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Coastal Waters Forecast...UPDATED
National Weather Service Lake Charles LA
947 PM CDT Sat Sep 21 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.

GMZ400-221515-
947 PM CDT Sat Sep 21 2024

.SYNOPSIS...
High pressure offshore will continue the trend of hot, dry and
calm conditions. Seas are below 2 feet and will stay there
through the weekend. In addition winds will be light and variable.
The pattern will start to change around midweek as a front moves
offshore, increasing winds.

In the Gulf the NHC has a 60% region for development of a
tropical cyclone. There is little consistency between individual
models or model run-to-run consistency. It will be important to
keep a close eye on the forecast for the next several days.

$$

GMZ430-221515-
Sabine Lake-
947 PM CDT Sat Sep 21 2024

.REST OF TONIGHT...Southeast winds around 5 knots. Lake waters
smooth.
.SUNDAY...Southeast winds 5 to 10 knots. Lake waters light chop.
.SUNDAY NIGHT...Southeast winds around 5 knots. Lake waters
smooth.
.MONDAY...Southeast winds around 5 knots. Lake waters smooth.
.MONDAY NIGHT...South winds around 5 knots. Lake waters smooth.
.TUESDAY...Northeast winds around 5 knots, becoming east around
5 knots in the afternoon. Lake waters smooth. A slight chance of
showers and thunderstorms in the afternoon.
.TUESDAY NIGHT...Southeast winds around 5 knots. Lake waters
smooth. A slight chance of showers and thunderstorms after
midnight.
.WEDNESDAY...Northeast winds 5 to 10 knots. Lake 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...Northeast winds 5 to 10 knots. Lake waters
light chop. A slight chance of showers and thunderstorms.
.THURSDAY...Northeast winds around 10 knots. Lake waters light
chop. A slight chance of thunderstorms. A slight chance of
showers.
.THURSDAY NIGHT...North winds 10 to 15 knots. Lake waters choppy.

Winds and waves higher in and near thunderstorms.

$$

GMZ432-221515-
Calcasieu Lake-
947 PM CDT Sat Sep 21 2024

.REST OF TONIGHT...Southeast winds 5 to 10 knots. Lake waters
light chop.
.SUNDAY...Southeast winds 5 to 10 knots. Lake waters light chop.
.SUNDAY NIGHT...Southeast winds 5 to 10 knots. Lake waters light
chop.
.MONDAY...East winds around 5 knots, becoming southeast in the
afternoon. Lake waters smooth.
.MONDAY NIGHT...South winds around 5 knots. Lake waters smooth.
.TUESDAY...East winds around 5 knots. Lake waters smooth. A
slight chance of showers and thunderstorms in the afternoon.
.TUESDAY NIGHT...South winds around 5 knots, becoming east after
midnight. Lake waters smooth.
.WEDNESDAY...Northeast winds 5 to 10 knots. Lake 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...Northeast winds 5 to 10 knots. Lake waters
light chop. A slight chance of showers and thunderstorms.
.THURSDAY...Northeast winds 10 to 15 knots. Lake waters choppy. A
slight chance of showers and thunderstorms.
.THURSDAY NIGHT...North winds 10 to 15 knots. Lake waters choppy.
A slight chance of showers and thunderstorms in the evening.

Winds and waves higher in and near thunderstorms.

$$

GMZ435-221515-
Vermilion and West Cote Blanche Bays-
947 PM CDT Sat Sep 21 2024

.REST OF TONIGHT...Southeast winds around 5 knots. Bay waters
smooth.
.SUNDAY...East winds 5 to 10 knots. Bay waters light chop.
.SUNDAY NIGHT...Southeast winds 5 to 10 knots. Bay waters light
chop.
.MONDAY...Southeast winds around 5 knots. Bay waters smooth.
.MONDAY NIGHT...Southeast winds around 5 knots. Bay waters
smooth.
.TUESDAY...East winds around 5 knots. Bay waters smooth. A slight
chance of showers and thunderstorms in the afternoon.
.TUESDAY NIGHT...Southeast winds around 5 knots, becoming east
after midnight. Bay waters smooth.
.WEDNESDAY...Northeast 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...Northeast winds 10 to 15 knots. Bay waters
choppy. A chance of showers and thunderstorms, mainly in the
evening.
.THURSDAY...Northeast winds 10 to 15 knots. Bay waters choppy. A
slight chance of showers and thunderstorms in the morning, then a
chance of showers and thunderstorms in the afternoon.
.THURSDAY NIGHT...Northeast winds around 15 knots. Bay waters
choppy. A slight chance of showers and thunderstorms.

Winds and waves higher in and near thunderstorms.

$$

GMZ436-221515-
Atchafalaya and East Cote Blanche Bays-
947 PM CDT Sat Sep 21 2024

.REST OF TONIGHT...Southeast winds around 5 knots. Bay waters
smooth.
.SUNDAY...East winds 5 to 10 knots. Bay waters light chop.
.SUNDAY NIGHT...Southeast winds 5 to 10 knots. Bay waters light
chop.
.MONDAY...Southeast winds around 5 knots. Bay waters smooth.
.MONDAY NIGHT...Southeast winds around 5 knots. Bay waters
smooth.
.TUESDAY...East winds around 5 knots. Bay waters smooth. A slight
chance of showers and thunderstorms in the afternoon.
.TUESDAY NIGHT...East winds around 5 knots. Bay waters smooth. A
slight chance of showers and thunderstorms after midnight.
.WEDNESDAY...Northeast 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...Northeast winds 5 to 10 knots. Bay waters
light chop. A chance of showers and thunderstorms.
.THURSDAY...Northeast winds 10 to 15 knots. Bay waters choppy. A
chance of showers and thunderstorms.
.THURSDAY NIGHT...Northeast winds 10 to 15 knots. Bay waters
choppy. A chance of showers. A chance of thunderstorms, mainly in
the evening.

Winds and waves higher in and near thunderstorms.

$$

GMZ450-221515-
Coastal waters from Cameron LA to High Island TX out 20 NM-
947 PM CDT Sat Sep 21 2024

.REST OF TONIGHT...Southeast winds around 10 knots. Seas around
2 feet. Wave Detail: Southeast 2 feet at 4 seconds.
.SUNDAY...Southeast winds around 10 knots. Seas around 2 feet.
Wave Detail: Southeast 2 feet at 5 seconds.
.SUNDAY NIGHT...Southeast winds 5 to 10 knots. Seas around
2 feet. Wave Detail: Southeast 2 feet at 5 seconds.
.MONDAY...Southeast winds 5 to 10 knots. Seas around 2 feet. Wave
Detail: Southeast 2 feet at 5 seconds. A slight chance of
showers. A slight chance of thunderstorms in the afternoon.
.MONDAY NIGHT...Southeast winds 5 to 10 knots. Seas 1 foot or
less, then around 2 feet after midnight. Wave Detail: Southeast
1 foot at 5 seconds, becoming southeast 2 feet at 4 seconds.
.TUESDAY...East winds 5 to 10 knots. Seas around 2 feet. Wave
Detail: Southeast 2 feet at 4 seconds. A slight chance of showers
and thunderstorms.
.TUESDAY NIGHT...Southeast winds 5 to 10 knots. Seas 1 foot or
less, then around 2 feet after midnight. A slight chance of
showers and thunderstorms after midnight.
.WEDNESDAY...Northeast winds 10 to 15 knots. Seas around 2 feet.
A chance of showers. A slight chance of thunderstorms in the
morning, then a chance of thunderstorms in the afternoon.
.WEDNESDAY NIGHT...Northeast winds 10 to 15 knots. Seas around
2 feet. A chance of showers and thunderstorms, mainly in the
evening.
.THURSDAY...Northeast winds 15 to 20 knots. Seas 2 to 3 feet. A
slight chance of thunderstorms. A slight chance of showers.
.THURSDAY NIGHT...North winds 15 to 20 knots. Seas 2 to 3 feet. A
slight chance of showers and thunderstorms.

Winds and seas higher in and near thunderstorms.

$$

GMZ452-221515-
Coastal waters from Intracoastal City to Cameron LA out 20 NM-
947 PM CDT Sat Sep 21 2024

.REST OF TONIGHT...Southeast winds around 10 knots. Seas 1 foot
or less, then around 2 feet. Wave Detail: Southeast 1 foot at
4 seconds, becoming southeast 2 feet at 4 seconds.
.SUNDAY...Southeast winds 5 to 10 knots. Seas around 2 feet. Wave
Detail: Southeast 2 feet at 5 seconds.
.SUNDAY NIGHT...Southeast winds 5 to 10 knots. Seas 1 foot or
less. Wave Detail: Southeast 1 foot at 5 seconds.
.MONDAY...Southeast winds 5 to 10 knots. Seas 1 foot or less.
Wave Detail: Southeast 1 foot at 5 seconds.
.MONDAY NIGHT...Southeast winds 5 to 10 knots. Seas 1 foot or
less. Wave Detail: Southeast 1 foot at 4 seconds.
.TUESDAY...East winds 5 to 10 knots. Seas 1 foot or less. Wave
Detail: Southeast 1 foot at 4 seconds. A slight chance of showers
and thunderstorms.
.TUESDAY NIGHT...Southeast winds 5 to 10 knots. Seas 1 foot or
less. A slight chance of showers and thunderstorms after
midnight.
.WEDNESDAY...Northeast winds 10 to 15 knots. Seas around 2 feet.
A chance of showers. A slight chance of thunderstorms in the
morning, then a chance of thunderstorms in the afternoon.
.WEDNESDAY NIGHT...Northeast winds 10 to 15 knots. Seas around
2 feet. A chance of showers and thunderstorms.
.THURSDAY...Northeast winds 15 to 20 knots. Seas 2 to 3 feet. A
chance of showers and thunderstorms.
.THURSDAY NIGHT...Northeast winds 15 to 20 knots. Seas 2 to
4 feet. A slight chance of showers and thunderstorms.

Winds and seas higher in and near thunderstorms.

$$

GMZ455-221515-
Coastal waters from Lower Atchafalaya River to Intracoastal City
LA out 20 NM-
947 PM CDT Sat Sep 21 2024

.REST OF TONIGHT...Southeast winds 5 to 10 knots. Seas 1 foot or
less. Wave Detail: Southeast 1 foot at 3 seconds.
.SUNDAY...East winds 5 to 10 knots. Seas 1 foot or less. Wave
Detail: Southeast 1 foot at 3 seconds.
.SUNDAY NIGHT...Southeast winds 5 to 10 knots. Seas 1 foot or
less. Wave Detail: Southeast 1 foot at 3 seconds.
.MONDAY...East winds 5 to 10 knots. Seas 1 foot or less. Wave
Detail: Southeast 1 foot at 3 seconds.
.MONDAY NIGHT...Southeast winds 5 to 10 knots. Seas 1 foot or
less. Wave Detail: Southeast 1 foot at 3 seconds.
.TUESDAY...East winds around 5 knots. Seas 1 foot or less. Wave
Detail: Southeast 1 foot at 3 seconds. A slight chance of showers
and thunderstorms in the afternoon.
.TUESDAY NIGHT...East winds 5 to 10 knots. Seas 1 foot or less. A
slight chance of showers and thunderstorms after midnight.
.WEDNESDAY...Northeast winds 5 to 10 knots. Seas 1 foot or less,
then around 2 feet in the afternoon. A chance of showers. A
slight chance of thunderstorms in the morning, then a chance of
thunderstorms in the afternoon.
.WEDNESDAY NIGHT...East winds 10 to 15 knots. Seas around 2 feet.
A chance of showers and thunderstorms.
.THURSDAY...Northeast winds 15 to 20 knots. Seas 2 to 3 feet. A
chance of showers and thunderstorms.
.THURSDAY NIGHT...Northeast winds 15 to 20 knots. Seas 2 to
4 feet. A chance of showers and thunderstorms.

Winds and seas higher in and near thunderstorms.

$$

GMZ470-221515-
Coastal waters from Cameron LA to High Island TX from 20 to 60 NM-
947 PM CDT Sat Sep 21 2024

.REST OF TONIGHT...Southeast winds around 10 knots. Seas around
2 feet. Wave Detail: Southeast 2 feet at 5 seconds.
.SUNDAY...Southeast winds around 10 knots. Seas around 2 feet.
Wave Detail: Southeast 2 feet at 5 seconds.
.SUNDAY NIGHT...Southeast winds around 10 knots. Seas around
2 feet. Wave Detail: Southeast 2 feet at 5 seconds.
.MONDAY...Southeast winds 5 to 10 knots. Seas around 2 feet. Wave
Detail: Southeast 2 feet at 5 seconds. A slight chance of
showers. A slight chance of thunderstorms in the afternoon.
.MONDAY NIGHT...Southeast winds 5 to 10 knots. Seas around
2 feet. Wave Detail: Southeast 2 feet at 5 seconds.
.TUESDAY...East winds 5 to 10 knots. Seas around 2 feet. Wave
Detail: Southeast 2 feet at 5 seconds. A slight chance of showers
and thunderstorms.
.TUESDAY NIGHT...East winds 5 to 10 knots. Seas around 2 feet. A
slight chance of showers and thunderstorms after midnight.
.WEDNESDAY...Northeast winds 10 to 15 knots. Seas around 2 feet.
A chance of showers. A slight chance of thunderstorms in the
morning, then a chance of thunderstorms in the afternoon.
.WEDNESDAY NIGHT...Northeast winds 10 to 15 knots, increasing to
15 to 20 knots after midnight. Seas 2 to 3 feet. A chance of
showers. A chance of thunderstorms, mainly in the evening.
.THURSDAY...Northeast winds 15 to 20 knots. Seas 3 to 5 feet,
occasionally to 6 feet. A chance of showers and thunderstorms.
.THURSDAY NIGHT...Northeast winds 15 to 20 knots. Seas 4 to
6 feet, occasionally to 8 feet. A slight chance of showers and
thunderstorms.

Winds and seas higher in and near thunderstorms.

$$

GMZ472-221515-
Coastal waters from Intracoastal City to Cameron LA from 20 to
60 NM-
947 PM CDT Sat Sep 21 2024

.REST OF TONIGHT...Southeast winds 10 to 15 knots. Seas around
2 feet. Wave Detail: Southeast 2 feet at 4 seconds.
.SUNDAY...East winds around 10 knots. Seas around 2 feet. Wave
Detail: Southeast 2 feet at 5 seconds.
.SUNDAY NIGHT...Southeast winds 5 to 10 knots. Seas around
2 feet. Wave Detail: Southeast 2 feet at 5 seconds.
.MONDAY...East winds 5 to 10 knots. Seas around 2 feet. Wave
Detail: Southeast 2 feet at 5 seconds. A slight chance of
showers. A slight chance of thunderstorms in the afternoon.
.MONDAY NIGHT...Southeast winds 5 to 10 knots. Seas around
2 feet. Wave Detail: Southeast 2 feet at 5 seconds.
.TUESDAY...East winds 5 to 10 knots. Seas around 2 feet. Wave
Detail: Southeast 2 feet at 5 seconds. A slight chance of showers
and thunderstorms.
.TUESDAY NIGHT...East winds 5 to 10 knots. Seas around 2 feet. A
chance of showers with a slight chance of thunderstorms after
midnight.
.WEDNESDAY...Northeast winds 10 to 15 knots. Seas 2 to 3 feet. A
chance of showers with a slight chance of thunderstorms.
.WEDNESDAY NIGHT...East winds 10 to 15 knots, becoming northeast
15 to 20 knots after midnight. Seas 2 to 4 feet. A chance of
showers and thunderstorms.
.THURSDAY...Northeast winds 15 to 20 knots. Seas 4 to 6 feet,
occasionally to 8 feet. A chance of showers and thunderstorms.
.THURSDAY NIGHT...Northeast winds 20 to 25 knots. Seas 4 to
6 feet, occasionally to 8 feet. A chance of showers. A chance of
thunderstorms, mainly in the evening.

Winds and seas higher in and near thunderstorms.

$$

GMZ475-221515-
Coastal waters from Lower Atchafalaya River to Intracoastal City
LA from 20 to 60 NM-
947 PM CDT Sat Sep 21 2024

.REST OF TONIGHT...Southeast winds 10 to 15 knots. Seas around
2 feet. Wave Detail: Southeast 2 feet at 4 seconds.
.SUNDAY...East winds around 10 knots. Seas around 2 feet. Wave
Detail: Southeast 2 feet at 5 seconds.
.SUNDAY NIGHT...Southeast winds 10 to 15 knots. Seas around
2 feet. Wave Detail: Southeast 2 feet at 5 seconds.
.MONDAY...East winds 5 to 10 knots. Seas around 2 feet. Wave
Detail: Southeast 2 feet at 5 seconds. A slight chance of
showers. A slight chance of thunderstorms in the afternoon.
.MONDAY NIGHT...Southeast winds 5 to 10 knots. Seas around
2 feet. Wave Detail: Southeast 2 feet at 4 seconds.
.TUESDAY...East winds 5 to 10 knots. Seas around 2 feet. Wave
Detail: Southeast 2 feet at 4 seconds. A slight chance of showers
and thunderstorms.
.TUESDAY NIGHT...East winds 5 to 10 knots. Seas around 2 feet. A
slight chance of thunderstorms. A slight chance of showers in the
evening, then a chance of showers after midnight.
.WEDNESDAY...Northeast winds 10 to 15 knots. Seas 2 to 3 feet. A
chance of showers. A slight chance of thunderstorms in the
morning, then a chance of thunderstorms in the afternoon.
.WEDNESDAY NIGHT...Northeast winds 15 to 20 knots. Seas 2 to
4 feet. A chance of showers and thunderstorms.
.THURSDAY...Northeast winds 20 to 25 knots. Seas 5 to 7 feet,
occasionally to 9 feet. A chance of thunderstorms. A chance of
showers.
.THURSDAY NIGHT...Northeast winds 20 to 25 knots. Seas 5 to
7 feet, occasionally to 9 feet. A chance of showers and
thunderstorms.

Winds and seas higher in and near thunderstorms.

$$