Coastal Waters Forecast
Issued by NWS Lake Charles, LA

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FZUS54 KLCH 172325
CWFLCH

Coastal Waters Forecast
National Weather Service Lake Charles LA
625 PM CDT Sun Mar 17 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.

GMZ400-181215-
625 PM CDT Sun Mar 17 2024

.SYNOPSIS...
Chances continue for lingering showers and isolated thunderstorms
over coastal waters through early evening due to the stationary
boundary found in this area. Strong north winds will develop late
tonight driving a cold front down into the Gulf of Mexico,
bringing an end to rain chances. Winds of 20-30 knots gusting to
35 will increase seas to four to ten feet from late tonight
through Tuesday morning before lessening and turning onshore
Tuesday afternoon. The next chance of rain starts late Wednesday
before increasing to widespread showers and thunderstorms Thursday
with the next frontal system.

$$

GMZ430-181215-
Sabine Lake-
625 PM CDT Sun Mar 17 2024

...SMALL CRAFT EXERCISE CAUTION IN EFFECT FROM 10 PM THIS EVENING
TO 1 AM CDT MONDAY...
...SMALL CRAFT ADVISORY IN EFFECT FROM 1 AM CDT MONDAY THROUGH
TUESDAY MORNING...

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

Winds and waves higher in and near thunderstorms.

$$

GMZ432-181215-
Calcasieu Lake-
625 PM CDT Sun Mar 17 2024

...SMALL CRAFT EXERCISE CAUTION IN EFFECT FROM 10 PM THIS EVENING
TO 1 AM CDT MONDAY...
...SMALL CRAFT ADVISORY IN EFFECT FROM 1 AM CDT MONDAY THROUGH
TUESDAY MORNING...

.TONIGHT...Northeast winds 10 to 15 knots, increasing to 15 to
20 knots with gusts up to 25 knots late this evening and
overnight. Lake waters rough. A chance of showers with a slight
chance of thunderstorms this evening, then a slight chance of
showers after midnight.
.MONDAY...North winds 15 to 20 knots with gusts up to 25 knots.
Lake waters rough.
.MONDAY NIGHT...North winds 15 to 20 knots, becoming northeast
10 to 15 knots after midnight. 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 around 5 knots. Lake waters smooth.
.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, diminishing to
5 to 10 knots after midnight. Lake waters choppy. A slight chance
of showers after midnight.
.THURSDAY...East winds 5 to 10 knots. Lake waters light chop. A
chance of showers 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, diminishing to 5 to
10 knots after midnight. Lake waters choppy. A chance of showers
and thunderstorms in the evening.
.FRIDAY...North winds around 10 knots. Lake waters light chop.
.FRIDAY NIGHT...Northeast winds 5 to 10 knots. Lake waters light
chop.

Winds and waves higher in and near thunderstorms.

$$

GMZ435-181215-
Vermilion and West Cote Blanche Bays-
625 PM CDT Sun Mar 17 2024

...SMALL CRAFT EXERCISE CAUTION IN EFFECT FROM 1 AM TO 5 AM CDT
MONDAY...
...SMALL CRAFT ADVISORY IN EFFECT FROM 5 AM CDT MONDAY THROUGH
TUESDAY MORNING...

.TONIGHT...North 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, mainly this evening.
.MONDAY...North winds 15 to 20 knots with gusts up to 25 knots.
Bay waters rough.
.MONDAY NIGHT...North winds 15 to 20 knots, becoming northeast
10 to 15 knots after midnight. Bay waters rough.
.TUESDAY...Northeast winds 5 to 10 knots, becoming southeast in
the afternoon. Bay waters light chop.
.TUESDAY NIGHT...Southwest winds around 5 knots. 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. Bay waters light chop. A
slight chance of thunderstorms. A chance of showers.
.THURSDAY NIGHT...East winds 10 to 15 knots. Bay waters choppy. A
chance of showers with a slight chance of thunderstorms in the
evening, then a slight chance of showers after midnight.
.FRIDAY...North winds around 10 knots. Bay waters light chop.
.FRIDAY NIGHT...North winds 5 to 10 knots. Bay waters light chop.

Winds and waves higher in and near thunderstorms.

$$

GMZ436-181215-
Atchafalaya and East Cote Blanche Bays-
625 PM CDT Sun Mar 17 2024

...SMALL CRAFT EXERCISE CAUTION IN EFFECT FROM 1 AM TO 5 AM CDT
MONDAY...
...SMALL CRAFT ADVISORY IN EFFECT FROM 5 AM CDT MONDAY THROUGH
TUESDAY MORNING...

.TONIGHT...North winds 5 to 10 knots, increasing to 10 to
15 knots with gusts up to 20 knots late. Bay and inland waters
choppy. A slight chance of showers until early morning.
.MONDAY...North winds 10 to 15 knots with gusts up to 25 knots.
Bay and inland waters choppy.
.MONDAY NIGHT...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 southeast in
the afternoon. Bay and inland waters light chop.
.TUESDAY NIGHT...Southwest winds around 5 knots in the evening,
becoming light and variable. 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 5 to 10 knots. Bay and inland
waters light chop.
.THURSDAY...East winds 5 to 10 knots, increasing to 10 to
15 knots in the afternoon. Bay and inland waters choppy. A chance
of showers in the morning, then showers likely with a slight
chance of thunderstorms in the afternoon.
.THURSDAY NIGHT...East winds 10 to 15 knots. Bay and inland
waters choppy. A chance of showers with a slight chance of
thunderstorms in the evening, then a slight chance of showers
after midnight.
.FRIDAY...North winds around 10 knots. Bay and inland waters
light chop.
.FRIDAY NIGHT...North winds around 10 knots. Bay and inland
waters light chop.

Winds and waves higher in and near thunderstorms.

$$

GMZ450-181215-
Coastal waters from Cameron LA to High Island TX out 20 NM-
625 PM CDT Sun Mar 17 2024

...SMALL CRAFT EXERCISE CAUTION IN EFFECT FROM 10 PM THIS EVENING
TO 1 AM CDT MONDAY...
...SMALL CRAFT ADVISORY IN EFFECT FROM 1 AM CDT MONDAY THROUGH
TUESDAY MORNING...

.TONIGHT...Northeast winds 5 to 10 knots, increasing to 20 to
25 knots with gusts up to 30 knots. Seas 2 to 4 feet. A chance of
showers with a slight chance of thunderstorms this evening, then
a slight chance of showers and thunderstorms after midnight.
.MONDAY...Northeast winds 20 to 25 knots with gusts up to
30 knots. Seas 3 to 5 feet, occasionally to 6 feet.
.MONDAY NIGHT...North winds 20 to 25 knots, becoming northeast
15 to 20 knots after midnight. Seas 2 to 4 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 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 chance of showers after midnight.
.THURSDAY...Southeast winds 10 to 15 knots. Seas 2 to 3 feet.
Showers likely. A slight chance of thunderstorms in the morning,
then a chance of thunderstorms in the afternoon.
.THURSDAY NIGHT...East winds 10 to 15 knots. Seas 2 to 3 feet. A
slight chance of showers and thunderstorms in the evening.
.FRIDAY...North winds around 10 knots. Seas around 2 feet.
.FRIDAY NIGHT...Northeast winds around 10 knots. Seas around
2 feet.

Winds and seas higher in and near thunderstorms.

$$

GMZ452-181215-
Coastal waters from Intracoastal City to Cameron LA out 20 NM-
625 PM CDT Sun Mar 17 2024

...SMALL CRAFT EXERCISE CAUTION IN EFFECT FROM 10 PM THIS EVENING
TO 1 AM CDT MONDAY...
...SMALL CRAFT ADVISORY IN EFFECT FROM 1 AM CDT MONDAY THROUGH
TUESDAY MORNING...

.TONIGHT...Northeast winds 5 to 10 knots, increasing to 20 to
25 knots with gusts up to 30 knots. Seas 2 to 4 feet. A slight
chance of showers and thunderstorms this evening.
.MONDAY...North winds 20 to 25 knots with gusts up to 30 knots.
Seas 3 to 5 feet, occasionally to 6 feet.
.MONDAY NIGHT...North winds 20 to 25 knots, becoming northeast
15 to 20 knots after midnight. Seas 2 to 4 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 10 to 15 knots. Seas 2 to 3 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. Seas 2 to 3 feet. A
chance of showers with a slight chance of thunderstorms in the
evening.
.FRIDAY...North winds around 10 knots. Seas around 2 feet.
.FRIDAY NIGHT...Northeast winds around 10 knots. Seas around
2 feet.

Winds and seas higher in and near thunderstorms.

$$

GMZ455-181215-
Coastal waters from Lower Atchafalaya River to Intracoastal City
LA out 20 NM-
625 PM CDT Sun Mar 17 2024

...SMALL CRAFT EXERCISE CAUTION IN EFFECT FROM 1 AM TO 5 AM CDT
MONDAY...
...SMALL CRAFT ADVISORY IN EFFECT FROM 5 AM CDT MONDAY THROUGH
TUESDAY MORNING...

.TONIGHT...North winds 5 to 10 knots, becoming northeast 15 to
20 knots. Seas 1 to 2 feet. A slight chance of showers and
thunderstorms until early morning.
.MONDAY...North winds 15 to 20 knots with gusts up to 25 knots.
Seas 2 to 3 feet.
.MONDAY NIGHT...Northeast winds 15 to 20 knots with gusts up to
25 knots. Seas 2 to 3 feet.
.TUESDAY...Northeast winds 10 to 15 knots with gusts up to
20 knots, becoming east 5 to 10 knots in the afternoon. Seas
around 2 feet in the morning, then 1 foot or less.
.TUESDAY NIGHT...South winds around 5 knots. 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, then around 2 feet after midnight. A slight chance of
showers after midnight.
.THURSDAY...Southeast winds 10 to 15 knots. Seas around 2 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. Seas 2 to 3 feet. A
chance of showers with a slight chance of thunderstorms in the
evening, then a slight chance of showers after midnight.
.FRIDAY...North winds around 10 knots. Seas around 2 feet.
.FRIDAY NIGHT...North winds around 10 knots. Seas around 2 feet.

Winds and seas higher in and near thunderstorms.

$$

GMZ470-181215-
Coastal waters from Cameron LA to High Island TX from 20 to 60 NM-
625 PM CDT Sun Mar 17 2024

...SMALL CRAFT EXERCISE CAUTION IN EFFECT FROM 10 PM THIS EVENING
TO 1 AM CDT MONDAY...
...SMALL CRAFT ADVISORY IN EFFECT FROM 1 AM CDT MONDAY THROUGH
TUESDAY MORNING...

.TONIGHT...Northeast winds 5 to 10 knots, increasing to 20 to
25 knots with gusts up to 30 knots. Seas 2 to 3 feet, building to
4 to 6 feet, occasionally to 8 feet after midnight. A slight
chance of showers and thunderstorms this evening.
.MONDAY...Northeast winds 25 to 30 knots. Seas 6 to 9 feet,
occasionally to 11 feet.
.MONDAY NIGHT...Northeast winds 20 to 25 knots, diminishing to
15 to 20 knots after midnight. 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.
.WEDNESDAY...Southeast winds 5 to 10 knots. Seas around 2 feet.
.WEDNESDAY NIGHT...Southeast winds around 10 knots. Seas 2 to
3 feet. A chance of showers after midnight.
.THURSDAY...Southeast winds 10 to 15 knots. Seas 2 to 3 feet.
Showers likely with a slight chance of thunderstorms.
.THURSDAY NIGHT...East winds 10 to 15 knots, becoming northeast
after midnight. Seas 3 to 4 feet. A slight chance of showers and
thunderstorms in the evening.
.FRIDAY...North winds around 10 knots. Seas 2 to 3 feet.
.FRIDAY NIGHT...Northeast winds around 10 knots. Seas 2 to
3 feet.

Winds and seas higher in and near thunderstorms.

$$

GMZ472-181215-
Coastal waters from Intracoastal City to Cameron LA from 20 to
60 NM-
625 PM CDT Sun Mar 17 2024

...SMALL CRAFT EXERCISE CAUTION IN EFFECT FROM 10 PM THIS EVENING
TO 1 AM CDT MONDAY...
...SMALL CRAFT ADVISORY IN EFFECT FROM 1 AM CDT MONDAY THROUGH
TUESDAY MORNING...

.TONIGHT...North winds 5 to 10 knots, becoming northeast 20 to
25 knots with gusts up to 30 knots. Seas 2 to 3 feet, building to
4 to 6 feet, occasionally to 8 feet after midnight. A slight
chance of showers and thunderstorms until early morning.
.MONDAY...Northeast winds 25 to 30 knots. Seas 6 to 8 feet,
occasionally to 10 feet.
.MONDAY NIGHT...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 with gusts up to
25 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 around 5 knots. Seas around
2 feet.
.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...Southeast winds 10 to 15 knots. Seas 2 to 3 feet.
Showers likely with a slight chance of thunderstorms.
.THURSDAY NIGHT...East winds 10 to 15 knots. Seas 3 to 4 feet. A
chance of showers with a slight chance of thunderstorms in the
evening.
.FRIDAY...North winds around 10 knots. Seas 2 to 4 feet.
.FRIDAY NIGHT...Northeast winds 10 to 15 knots. Seas 2 to 3 feet.

Winds and seas higher in and near thunderstorms.

$$

GMZ475-181215-
Coastal waters from Lower Atchafalaya River to Intracoastal City
LA from 20 to 60 NM-
625 PM CDT Sun Mar 17 2024

...SMALL CRAFT EXERCISE CAUTION IN EFFECT FROM 1 AM TO 5 AM CDT
MONDAY...
...SMALL CRAFT ADVISORY IN EFFECT FROM 5 AM CDT MONDAY THROUGH
TUESDAY MORNING...

.TONIGHT...North winds 5 to 10 knots, becoming northeast 15 to
20 knots with gusts up to 25 knots. Seas 2 to 4 feet. A slight
chance of thunderstorms. A chance of showers early this evening,
then a slight chance of showers late this evening and overnight.
.MONDAY...North winds 20 to 25 knots with gusts up to 30 knots.
Seas 5 to 7 feet, occasionally to 9 feet.
.MONDAY NIGHT...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 with gusts up to
25 knots, becoming east 5 to 10 knots in the afternoon. Seas 3 to
5 feet, occasionally to 6 feet, subsiding to 2 to 3 feet in the
afternoon.
.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...Southeast winds 10 to 15 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. Seas 3 to 4 feet. A
slight chance of thunderstorms. A chance of showers, mainly in
the evening.
.FRIDAY...North winds 10 to 15 knots. Seas 3 to 4 feet.
.FRIDAY NIGHT...North winds 10 to 15 knots. Seas 2 to 3 feet.

Winds and seas higher in and near thunderstorms.

$$


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