Coastal Waters Forecast
Issued by NWS Lake Charles, LA

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FZUS54 KLCH 181939
CWFLCH

Coastal Waters Forecast
National Weather Service Lake Charles LA
239 PM CDT Mon Mar 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.

GMZ400-190830-
239 PM CDT Mon Mar 18 2024

.SYNOPSIS...
Strong northerly winds will persist through the evening and
overnight in the wake of a passing cold front. Winds of 20 to 30
knots and gusting to 35 knots will increase seas to as much as 9
feet over the waters beyond 20 nautical miles from late tonight
through Tuesday morning. Conditions will begin improving on
Tuesday as high pressure builds over the region. The next chance
of rain starts late Wednesday before increasing to widespread
showers and thunderstorms Thursday with the next frontal system.

$$

GMZ430-190830-
Sabine Lake-
239 PM CDT Mon Mar 18 2024

...SMALL CRAFT ADVISORY IN EFFECT THROUGH TUESDAY MORNING...

.TONIGHT...North winds 15 to 20 knots, becoming northeast 10 to
15 knots late. Lake waters rough.
.TUESDAY...East winds 10 to 15 knots, becoming southeast 5 to
10 knots in the afternoon. Lake waters choppy.
.TUESDAY NIGHT...South winds 5 to 10 knots, diminishing to around
5 knots after midnight. Lake waters light chop.
.WEDNESDAY...Southeast winds 5 to 10 knots. Lake waters light
chop.
.WEDNESDAY NIGHT...Southeast winds 10 to 15 knots. Lake waters
choppy. A slight chance of showers. A slight chance of
thunderstorms after midnight.
.THURSDAY...Southeast winds 10 to 15 knots with gusts up to
20 knots. Lake waters choppy. A chance of thunderstorms. A chance
of showers in the morning, then showers likely in the afternoon.
.THURSDAY NIGHT...East winds 10 to 15 knots with gusts up to
20 knots, diminishing to 5 to 10 knots after midnight. Lake
waters choppy. A chance of showers and thunderstorms in the
evening.
.FRIDAY...Northeast winds 5 to 10 knots. Lake waters light chop.
.FRIDAY NIGHT...Northeast winds around 5 knots. Lake waters
smooth.
.SATURDAY...East winds around 5 knots. Lake waters smooth.
.SATURDAY NIGHT...Southeast winds 5 to 10 knots. Lake waters
light chop.

Winds and waves higher in and near thunderstorms.

$$

GMZ432-190830-
Calcasieu Lake-
239 PM CDT Mon Mar 18 2024

...SMALL CRAFT ADVISORY IN EFFECT THROUGH TUESDAY MORNING...

.TONIGHT...North winds 20 to 25 knots, becoming northeast 10 to
15 knots. Lake waters very rough.
.TUESDAY...East winds 10 to 15 knots with gusts up to 20 knots,
becoming southeast 5 to 10 knots in the afternoon. Lake waters
choppy.
.TUESDAY NIGHT...South winds 5 to 10 knots. Lake waters light
chop.
.WEDNESDAY...Southeast winds 5 to 10 knots, increasing to 10 to
15 knots in the afternoon. Lake waters choppy.
.WEDNESDAY NIGHT...Southeast winds 10 to 15 knots. Lake waters
choppy. A slight chance of showers.
.THURSDAY...East winds 10 to 15 knots, becoming southeast 15 to
20 knots in the afternoon. Lake waters rough. A slight chance of
thunderstorms. A chance of showers in the morning, then showers
likely in the afternoon.
.THURSDAY NIGHT...East winds 10 to 15 knots with gusts up to
20 knots, diminishing to 5 to 10 knots after midnight. Lake
waters choppy. A chance of showers and thunderstorms in the
evening.
.FRIDAY...Northeast winds 5 to 10 knots. Lake waters light chop.
.FRIDAY NIGHT...Northeast winds around 5 knots. Lake waters
smooth.
.SATURDAY...East winds 5 to 10 knots. Lake waters light chop.
.SATURDAY NIGHT...Southeast winds 5 to 10 knots. Lake waters
light chop.

Winds and waves higher in and near thunderstorms.

$$

GMZ435-190830-
Vermilion and West Cote Blanche Bays-
239 PM CDT Mon Mar 18 2024

...SMALL CRAFT ADVISORY IN EFFECT THROUGH TUESDAY MORNING...

.TONIGHT...North winds 15 to 20 knots, becoming northeast 10 to
15 knots late this evening and overnight. Bay waters rough.
.TUESDAY...East winds 5 to 10 knots. Bay waters light chop.
.TUESDAY NIGHT...Southwest winds around 5 knots, becoming
northwest around 5 knots after midnight. Bay waters smooth.
.WEDNESDAY...East winds around 5 knots, becoming southeast in the
afternoon. Bay waters light chop.
.WEDNESDAY NIGHT...Southeast winds 5 to 10 knots. Bay waters
light chop.
.THURSDAY...East winds 5 to 10 knots, becoming southeast 10 to
15 knots with gusts up to 20 knots in the afternoon. Bay waters
choppy. A chance of showers.
.THURSDAY NIGHT...East winds 10 to 15 knots with gusts up to
20 knots, diminishing to 5 to 10 knots after midnight. Bay waters
choppy. A slight chance of thunderstorms. A chance of showers,
mainly in the evening.
.FRIDAY...Northeast winds 5 to 10 knots. Bay waters light chop.
.FRIDAY NIGHT...North winds 5 to 10 knots. Bay waters light chop.
.SATURDAY...Northeast winds around 10 knots, diminishing to
around 5 knots in the afternoon. Bay waters light chop.
.SATURDAY NIGHT...Northeast winds 5 to 10 knots, becoming east
after midnight. Bay waters light chop.

Winds and waves higher in and near thunderstorms.

$$

GMZ436-190830-
Atchafalaya and East Cote Blanche Bays-
239 PM CDT Mon Mar 18 2024

...SMALL CRAFT ADVISORY IN EFFECT THROUGH TUESDAY MORNING...

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

Winds and waves higher in and near thunderstorms.

$$

GMZ450-190830-
Coastal waters from Cameron LA to High Island TX out 20 NM-
239 PM CDT Mon Mar 18 2024

...SMALL CRAFT ADVISORY IN EFFECT THROUGH TUESDAY MORNING...

.TONIGHT...North winds 20 to 25 knots with gusts up to 30 knots,
becoming northeast 15 to 20 knots with gusts up to 25 knots after
midnight. Seas 3 to 5 feet, occasionally to 6 feet.
.TUESDAY...Northeast winds 10 to 15 knots with gusts up to
20 knots, becoming east 5 to 10 knots in the afternoon. Seas 2 to
3 feet.
.TUESDAY NIGHT...South winds 5 to 10 knots. Seas 1 foot or less.
.WEDNESDAY...Southeast winds 5 to 10 knots, increasing to 10 to
15 knots in the afternoon. Seas 1 foot or less, then around
2 feet in the afternoon.
.WEDNESDAY NIGHT...Southeast winds 10 to 15 knots. Seas around
2 feet. A slight chance of showers. A slight chance of
thunderstorms after midnight.
.THURSDAY...East winds 10 to 15 knots, becoming southeast 15 to
20 knots in the afternoon. Seas 2 to 3 feet. Showers likely with
a slight chance of thunderstorms.
.THURSDAY NIGHT...East winds 10 to 15 knots. Seas 2 to 3 feet. A
chance of showers and thunderstorms in the evening.
.FRIDAY...Northeast winds 5 to 10 knots. Seas around 2 feet.
.FRIDAY NIGHT...Northeast winds 5 to 10 knots. Seas around
2 feet.
.SATURDAY...East winds around 10 knots. Seas around 2 feet.
.SATURDAY NIGHT...Southeast winds around 10 knots. Seas around
2 feet.

Winds and seas higher in and near thunderstorms.

$$

GMZ452-190830-
Coastal waters from Intracoastal City to Cameron LA out 20 NM-
239 PM CDT Mon Mar 18 2024

...SMALL CRAFT ADVISORY IN EFFECT THROUGH TUESDAY MORNING...

.TONIGHT...North winds 20 to 25 knots, becoming northeast 15 to
20 knots after midnight. Seas 3 to 5 feet, occasionally to
6 feet.
.TUESDAY...Northeast winds 15 to 20 knots, becoming east 5 to
10 knots in the afternoon. Seas 2 to 3 feet.
.TUESDAY NIGHT...South winds around 5 knots. Seas 1 foot or less.
.WEDNESDAY...Southeast winds 5 to 10 knots, increasing to 10 to
15 knots in the afternoon. Seas 1 foot or less, then around
2 feet in the afternoon.
.WEDNESDAY NIGHT...Southeast winds 10 to 15 knots. Seas around
2 feet. A slight chance of showers after midnight.
.THURSDAY...East winds 15 to 20 knots. Seas 2 to 4 feet. A slight
chance of thunderstorms. A chance of showers in the morning, then
showers likely in the afternoon.
.THURSDAY NIGHT...East winds 15 to 20 knots, diminishing to
around 10 knots after midnight. Seas 2 to 4 feet. A slight chance
of thunderstorms. A chance of showers, mainly in the evening.
.FRIDAY...Northeast winds around 10 knots. Seas around 2 feet.
.FRIDAY NIGHT...Northeast winds 5 to 10 knots. Seas around
2 feet.
.SATURDAY...East winds 5 to 10 knots. Seas around 2 feet.
.SATURDAY NIGHT...Southeast winds 5 to 10 knots. Seas 1 foot or
less, then around 2 feet after midnight.

Winds and seas higher in and near thunderstorms.

$$

GMZ455-190830-
Coastal waters from Lower Atchafalaya River to Intracoastal City
LA out 20 NM-
239 PM CDT Mon Mar 18 2024

...SMALL CRAFT ADVISORY IN EFFECT THROUGH TUESDAY MORNING...

.TONIGHT...North winds 15 to 20 knots, becoming northeast 10 to
15 knots late. Seas 2 to 3 feet.
.TUESDAY...Northeast winds 10 to 15 knots with gusts up to
20 knots, diminishing to 5 to 10 knots in the afternoon. Seas
around 2 feet in the morning, then 1 foot or less.
.TUESDAY NIGHT...Southwest winds around 5 knots, becoming
southeast after midnight. Seas 1 foot or less.
.WEDNESDAY...East winds around 5 knots, becoming southeast in the
afternoon. Seas 1 foot or less.
.WEDNESDAY NIGHT...Southeast winds 5 to 10 knots. Seas 1 foot or
less.
.THURSDAY...East winds 10 to 15 knots. Seas 2 to 3 feet. A chance
of showers in the morning, then showers likely in the afternoon.
.THURSDAY NIGHT...East winds 10 to 15 knots with gusts up to
20 knots. Seas 2 to 3 feet. A slight chance of thunderstorms. A
chance of showers.
.FRIDAY...Northeast winds 5 to 10 knots. Seas around 2 feet.
.FRIDAY NIGHT...Northeast winds 5 to 10 knots. Seas around
2 feet.
.SATURDAY...Northeast winds 5 to 10 knots. Seas around 2 feet in
the morning, then 1 foot or less.
.SATURDAY NIGHT...East winds 5 to 10 knots. Seas 1 foot or less.

Winds and seas higher in and near thunderstorms.

$$

GMZ470-190830-
Coastal waters from Cameron LA to High Island TX from 20 to 60 NM-
239 PM CDT Mon Mar 18 2024

...SMALL CRAFT ADVISORY IN EFFECT THROUGH TUESDAY MORNING...

.TONIGHT...Northeast winds 20 to 25 knots, diminishing to 15 to
20 knots late. Seas 5 to 7 feet, occasionally to 9 feet.
.TUESDAY...Northeast winds 15 to 20 knots, becoming east 10 to
15 knots in the afternoon. Seas 2 to 4 feet.
.TUESDAY NIGHT...Southeast winds 5 to 10 knots. Seas around
2 feet.
.WEDNESDAY...Southeast winds 5 to 10 knots. Seas around 2 feet.
.WEDNESDAY NIGHT...Southeast winds 10 to 15 knots with gusts up
to 20 knots. Seas 2 to 3 feet. A slight chance of showers in the
evening, then a chance of showers with a slight chance of
thunderstorms after midnight.
.THURSDAY...East winds 10 to 15 knots with gusts up to 25 knots.
Seas 2 to 4 feet. Showers likely with a slight chance of
thunderstorms in the morning, then showers likely with a chance
of thunderstorms in the afternoon.
.THURSDAY NIGHT...East winds 10 to 15 knots. Gusts up to 25 knots
in the evening. Seas 3 to 4 feet. A chance of showers and
thunderstorms in the evening.
.FRIDAY...Northeast winds 5 to 10 knots. Seas 3 to 4 feet.
.FRIDAY NIGHT...Northeast winds 5 to 10 knots. Seas 2 to 3 feet.
.SATURDAY...East winds around 10 knots. Seas 2 to 3 feet.
.SATURDAY NIGHT...Southeast winds around 10 knots. Seas 2 to
3 feet.

Winds and seas higher in and near thunderstorms.

$$

GMZ472-190830-
Coastal waters from Intracoastal City to Cameron LA from 20 to
60 NM-
239 PM CDT Mon Mar 18 2024

...SMALL CRAFT ADVISORY IN EFFECT THROUGH TUESDAY MORNING...

.TONIGHT...Northeast winds 20 to 25 knots with gusts up to
30 knots. Seas 5 to 7 feet, occasionally to 9 feet.
.TUESDAY...Northeast winds 15 to 20 knots, becoming east 10 to
15 knots in the afternoon. Seas 3 to 5 feet, occasionally to
6 feet, subsiding to 2 to 3 feet in the afternoon.
.TUESDAY NIGHT...Southeast winds 5 to 10 knots. Seas around
2 feet in the evening, then 1 foot or less.
.WEDNESDAY...Southeast winds 5 to 10 knots. Seas around 2 feet.
.WEDNESDAY NIGHT...Southeast winds 10 to 15 knots. Seas around
2 feet. A slight chance of showers after midnight.
.THURSDAY...East winds 10 to 15 knots, increasing to 15 to
20 knots in the afternoon. Seas 2 to 4 feet. A slight chance of
thunderstorms. A chance of showers in the morning, then showers
likely in the afternoon.
.THURSDAY NIGHT...East winds 15 to 20 knots, diminishing to 10 to
15 knots after midnight. Seas 3 to 4 feet. A slight chance of
thunderstorms. A chance of showers, mainly in the evening.
.FRIDAY...Northeast winds around 10 knots. Seas 3 to 4 feet.
.FRIDAY NIGHT...Northeast winds around 10 knots. Seas 2 to
3 feet.
.SATURDAY...Northeast winds around 10 knots. Seas 2 to 3 feet.
.SATURDAY NIGHT...East winds around 10 knots. Seas around 2 feet.

Winds and seas higher in and near thunderstorms.

$$

GMZ475-190830-
Coastal waters from Lower Atchafalaya River to Intracoastal City
LA from 20 to 60 NM-
239 PM CDT Mon Mar 18 2024

...SMALL CRAFT ADVISORY IN EFFECT THROUGH TUESDAY MORNING...

.TONIGHT...Northeast winds 20 to 25 knots, diminishing to 15 to
20 knots late. Seas 5 to 7 feet, occasionally to 9 feet.
.TUESDAY...Northeast winds 15 to 20 knots with gusts up to
25 knots, diminishing to 10 to 15 knots in the afternoon. Seas
3 to 5 feet, occasionally to 6 feet.
.TUESDAY NIGHT...East winds around 5 knots. Seas around 2 feet.
.WEDNESDAY...East winds 5 to 10 knots. Seas around 2 feet.
.WEDNESDAY NIGHT...Southeast winds around 10 knots. Seas around
2 feet. A slight chance of showers after midnight.
.THURSDAY...East winds 10 to 15 knots with gusts up to 20 knots.
Seas 2 to 4 feet. A slight chance of thunderstorms. A chance of
showers in the morning, then showers likely in the afternoon.
.THURSDAY NIGHT...East winds 10 to 15 knots with gusts up to
25 knots. Seas 3 to 4 feet. A slight chance of thunderstorms. A
chance of showers.
.FRIDAY...Northeast winds around 10 knots. Seas 3 to 4 feet.
.FRIDAY NIGHT...Northeast winds around 10 knots. Seas 2 to
4 feet.
.SATURDAY...Northeast winds around 10 knots. Seas 2 to 4 feet.
.SATURDAY NIGHT...East winds around 10 knots. Seas 2 to 3 feet.

Winds and seas higher in and near thunderstorms.

$$


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