Coastal Waters Forecast
Issued by NWS Lake Charles, LA

Home |  Current Version |  Previous Version |  Text Only |  Print | Product List |  Glossary On
Versions: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21
431
FZUS54 KLCH 090209
CWFLCH

Coastal Waters Forecast
National Weather Service Lake Charles LA
909 PM CDT Wed May 8 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.

GMZ400-091515-
909 PM CDT Wed May 8 2024

.SYNOPSIS...
A light to moderate onshore flow and seas with seas 2 to 3 feet
will prevail through Thursday. Areas of dense fog will be
reduce visibility below one mile tonight through Thursday
morning.

A cold front will push through the coastal waters
Thursday night accompanied by isolated showers and thunderstorms.
Offshore flow will develop behind the front Friday and Saturday.
Onshore flow becomes reestablished Sunday as high pressure slides
east of the area. Precipitation chances will also increase again
Sunday and Monday as a series of upper level disturbance moves
across the area.

$$

GMZ430-091515-
Sabine Lake-
909 PM CDT Wed May 8 2024

...DENSE FOG ADVISORY IN EFFECT UNTIL 8 AM CDT THURSDAY...

.TONIGHT...South winds 10 to 15 knots, diminishing to 5 to
10 knots late. Lake waters choppy. Patchy fog late.
.THURSDAY...South winds 5 to 10 knots, becoming southeast 10 to
15 knots in the afternoon. Lake waters choppy. Patchy fog in the
morning.
.THURSDAY NIGHT...South winds 10 to 15 knots, becoming northwest
5 to 10 knots after midnight. Lake waters choppy. Patchy fog
after midnight.
.FRIDAY...Northeast winds 10 to 15 knots. Lake waters choppy.
.FRIDAY NIGHT...Northeast winds 10 to 15 knots with gusts up to
20 knots. Lake waters choppy.
.SATURDAY...East winds 10 to 15 knots. Lake waters choppy.
.SATURDAY NIGHT...Southeast winds 10 to 15 knots, becoming east
around 5 knots after midnight. Lake waters choppy. A slight
chance of showers and thunderstorms after midnight.
.SUNDAY...East winds 5 to 10 knots, becoming southeast 10 to
15 knots in the afternoon. Lake waters choppy. A chance of
showers and thunderstorms.
.SUNDAY NIGHT...Southeast winds 10 to 15 knots. Lake waters
choppy. A chance of showers and thunderstorms.
.MONDAY...South winds 10 to 15 knots. Lake waters choppy. Showers
likely with a chance of thunderstorms.
.MONDAY NIGHT...South winds around 10 knots. Lake waters light
chop. A chance of thunderstorms. A chance of showers.

Winds and waves higher in and near thunderstorms.

$$

GMZ432-091515-
Calcasieu Lake-
909 PM CDT Wed May 8 2024

...DENSE FOG ADVISORY IN EFFECT UNTIL 8 AM CDT THURSDAY...

.TONIGHT...South winds 10 to 15 knots. Lake waters choppy. Patchy
fog early this evening. Patchy fog late.
.THURSDAY...South winds 5 to 10 knots, increasing to 10 to
15 knots with gusts up to 20 knots in the afternoon. Lake waters
choppy. Patchy fog in the morning.
.THURSDAY NIGHT...South winds 10 to 15 knots with gusts up to
20 knots, becoming northwest around 5 knots after midnight. Lake
waters choppy. Widespread fog after midnight.
.FRIDAY...Northeast winds 15 to 20 knots. Lake waters rough.
.FRIDAY NIGHT...Northeast winds 15 to 20 knots, diminishing to
10 to 15 knots after midnight. Lake waters rough.
.SATURDAY...Northeast winds 15 to 20 knots, becoming east 10 to
15 knots in the afternoon. Lake waters rough.
.SATURDAY NIGHT...Southeast winds 5 to 10 knots. Lake waters
light chop. A slight chance of showers and thunderstorms after
midnight.
.SUNDAY...Southeast winds 10 to 15 knots. Lake waters choppy. A
chance of showers and thunderstorms.
.SUNDAY NIGHT...Southeast winds 10 to 15 knots. Lake waters
choppy. A chance of thunderstorms. A chance of showers.
.MONDAY...South winds 10 to 15 knots. Lake waters choppy. Showers
likely with a chance of thunderstorms.
.MONDAY NIGHT...South winds around 10 knots. Lake waters light
chop. A chance of thunderstorms. A chance of showers.

Winds and waves higher in and near thunderstorms.

$$

GMZ435-091515-
Vermilion and West Cote Blanche Bays-
909 PM CDT Wed May 8 2024

.TONIGHT...South winds 10 to 15 knots. Bay waters choppy. Patchy
fog late this evening and overnight.
.THURSDAY...South winds 5 to 10 knots. Bay waters light chop.
Patchy fog in the morning.
.THURSDAY NIGHT...South winds 5 to 10 knots, becoming southwest
after midnight. Bay waters light chop. A slight chance of showers
and thunderstorms after midnight. Widespread dense fog after
midnight.
.FRIDAY...North winds 5 to 10 knots. Bay waters light chop. A
slight chance of showers and thunderstorms in the morning. Patchy
dense fog in the morning.
.FRIDAY NIGHT...Northeast winds around 10 knots. Bay waters light
chop.
.SATURDAY...East winds 5 to 10 knots. Bay waters light chop.
.SATURDAY NIGHT...Southeast winds around 5 knots. Bay waters
smooth. A slight chance of showers and thunderstorms after
midnight.
.SUNDAY...East winds 5 to 10 knots. Bay waters light chop. A
chance of showers and thunderstorms.
.SUNDAY NIGHT...Southeast winds 10 to 15 knots. Bay waters
choppy. A chance of showers and thunderstorms.
.MONDAY...Southeast winds 10 to 15 knots. Bay waters choppy.
Showers likely with a chance of thunderstorms.
.MONDAY NIGHT...South winds 10 to 15 knots. Bay waters choppy.
Showers likely with a chance of thunderstorms.

Winds and waves higher in and near thunderstorms.

$$

GMZ436-091515-
Atchafalaya and East Cote Blanche Bays-
909 PM CDT Wed May 8 2024

.TONIGHT...South winds 10 to 15 knots, diminishing to 5 to
10 knots late. Bay waters choppy. Patchy fog late this evening.
.THURSDAY...South winds 5 to 10 knots. Bay waters light chop.
Patchy fog in the morning.
.THURSDAY NIGHT...South winds 5 to 10 knots. Bay waters light
chop. A slight chance of showers and thunderstorms after
midnight. Widespread dense fog after midnight.
.FRIDAY...Northwest winds 5 to 10 knots, becoming north in the
afternoon. Bay waters light chop. A slight chance of showers and
thunderstorms in the morning. Widespread dense fog in the
morning.
.FRIDAY NIGHT...Northeast winds 5 to 10 knots. Bay waters light
chop.
.SATURDAY...Northeast winds around 10 knots, becoming southeast
in the afternoon. Bay waters light chop.
.SATURDAY NIGHT...Southeast winds around 5 knots. Bay waters
smooth. A slight chance of showers and thunderstorms after
midnight.
.SUNDAY...East winds 5 to 10 knots, becoming southeast 10 to
15 knots in the afternoon. Bay waters choppy. A chance of showers
and thunderstorms.
.SUNDAY NIGHT...Southeast winds 10 to 15 knots. Bay waters
choppy. A chance of showers and thunderstorms.
.MONDAY...Southeast winds around 15 knots. Bay waters choppy.
Showers likely with a chance of thunderstorms.
.MONDAY NIGHT...South winds 10 to 15 knots. Bay waters choppy. A
chance of thunderstorms. A chance of showers in the evening, then
showers likely after midnight.

Winds and waves higher in and near thunderstorms.

$$

GMZ450-091515-
Coastal waters from Cameron LA to High Island TX out 20 NM-
909 PM CDT Wed May 8 2024

...DENSE FOG ADVISORY IN EFFECT UNTIL 8 AM CDT THURSDAY...

.TONIGHT...South winds 10 to 15 knots. Seas 2 to 3 feet. Wave
Detail: South 3 feet at 5 seconds. Patchy fog.
.THURSDAY...Southeast winds 10 to 15 knots. Seas 2 to 3 feet.
Wave Detail: South 3 feet at 7 seconds and southeast 2 feet at
4 seconds. Patchy fog.
.THURSDAY NIGHT...South winds 10 to 15 knots with gusts up to
20 knots, becoming west 5 to 10 knots after midnight. Seas 2 to
3 feet. Wave Detail: Southeast 2 feet at 4 seconds and south
2 feet at 7 seconds. Patchy fog in the evening. Widespread dense
fog after midnight.
.FRIDAY...Northeast winds 10 to 15 knots. Seas 2 to 3 feet. Wave
Detail: South 2 feet at 7 seconds and northeast 1 foot at
3 seconds.
.FRIDAY NIGHT...Northeast winds 15 to 20 knots. Seas 2 to 4 feet.
Wave Detail: Northeast 2 feet at 3 seconds and south 2 feet at
7 seconds.
.SATURDAY...Northeast winds 15 to 20 knots, becoming east 10 to
15 knots in the afternoon. Seas 2 to 4 feet. Wave Detail: East
3 feet at 5 seconds.
.SATURDAY NIGHT...Southeast winds 10 to 15 knots. Seas around
2 feet. A slight chance of showers and thunderstorms after
midnight.
.SUNDAY...Southeast winds 10 to 15 knots. Seas 2 to 3 feet. A
chance of thunderstorms. A chance of showers.
.SUNDAY NIGHT...Southeast winds 15 to 20 knots. Seas 3 to 4 feet.
A chance of showers and thunderstorms.
.MONDAY...South winds 10 to 15 knots. Seas 3 to 4 feet. A chance
of thunderstorms. Showers likely.
.MONDAY NIGHT...South winds 10 to 15 knots. Seas 2 to 3 feet. A
chance of thunderstorms. A chance of showers.

Winds and seas higher in and near thunderstorms.

$$

GMZ452-091515-
Coastal waters from Intracoastal City to Cameron LA out 20 NM-
909 PM CDT Wed May 8 2024

...DENSE FOG ADVISORY IN EFFECT UNTIL 8 AM CDT THURSDAY...
...SMALL CRAFT EXERCISE CAUTION IN EFFECT UNTIL 7 AM CDT
THURSDAY...

.TONIGHT...South winds 10 to 15 knots with gusts up to 25 knots.
Seas 2 to 4 feet. Wave Detail: South 3 feet at 6 seconds. Patchy
fog this evening, then areas of dense fog after midnight. Patchy
fog late.
.THURSDAY...South winds 10 to 15 knots. Seas 2 to 3 feet. Wave
Detail: South 3 feet at 7 seconds and southeast 2 feet at
3 seconds. Patchy fog.
.THURSDAY NIGHT...South winds 10 to 15 knots with gusts up to
20 knots, becoming southwest 5 to 10 knots after midnight. Seas
2 to 3 feet. Wave Detail: South 3 feet at 7 seconds and southeast
2 feet at 4 seconds. Patchy fog in the evening, then widespread
dense fog after midnight.
.FRIDAY...North winds 10 to 15 knots. Seas 2 to 3 feet. Wave
Detail: South 2 feet at 7 seconds and north 1 foot at 2 seconds.
Patchy fog in the morning.
.FRIDAY NIGHT...Northeast winds 10 to 15 knots, increasing to
15 to 20 knots after midnight. Seas 2 to 3 feet. Wave Detail:
Northeast 2 feet at 3 seconds and south 2 feet at 7 seconds.
.SATURDAY...Northeast winds 15 to 20 knots with gusts up to
25 knots, becoming east 10 to 15 knots in the afternoon. Seas
2 to 4 feet. Wave Detail: Northeast 3 feet at 4 seconds and south
1 foot at 6 seconds.
.SATURDAY NIGHT...Southeast winds 5 to 10 knots. Seas around
2 feet. A slight chance of showers and thunderstorms after
midnight.
.SUNDAY...East winds 10 to 15 knots. Seas 2 to 3 feet. A chance
of showers and thunderstorms.
.SUNDAY NIGHT...Southeast winds 15 to 20 knots. Seas 2 to 4 feet.
A chance of thunderstorms. A chance of showers in the evening,
then showers likely after midnight.
.MONDAY...South winds around 15 knots. Seas 2 to 4 feet. Showers
likely with a chance of thunderstorms.
.MONDAY NIGHT...South winds 10 to 15 knots. Seas 2 to 4 feet. A
chance of thunderstorms. Showers likely, mainly in the evening.

Winds and seas higher in and near thunderstorms.

$$

GMZ455-091515-
Coastal waters from Lower Atchafalaya River to Intracoastal City
LA out 20 NM-
909 PM CDT Wed May 8 2024

...SMALL CRAFT EXERCISE CAUTION IN EFFECT THROUGH THURSDAY
MORNING...

.TONIGHT...South winds 10 to 15 knots with gusts up to 25 knots.
Seas 2 to 3 feet. Wave Detail: South 2 feet at 3 seconds. Patchy
fog.
.THURSDAY...South winds 5 to 10 knots. Seas 2 to 3 feet. Wave
Detail: South 2 feet at 3 seconds and south 2 feet at 6 seconds.
Patchy fog in the morning.
.THURSDAY NIGHT...South winds 5 to 10 knots. Seas around 2 feet.
Wave Detail: South 2 feet at 3 seconds and south 2 feet at
7 seconds. A slight chance of showers and thunderstorms after
midnight. Widespread dense fog after midnight.
.FRIDAY...Northwest winds 5 to 10 knots, becoming north in the
afternoon. Seas around 2 feet. Wave Detail: South 2 feet at
7 seconds and northwest 1 foot at 2 seconds. Patchy dense fog in
the morning.
.FRIDAY NIGHT...Northeast winds 5 to 10 knots. Seas around
2 feet. Wave Detail: North 2 feet at 3 seconds and south 1 foot
at 6 seconds.
.SATURDAY...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. Wave Detail: East 2 feet at 3 seconds and south
1 foot at 6 seconds.
.SATURDAY NIGHT...Southeast winds 5 to 10 knots. Seas 1 foot or
less. A slight chance of showers and thunderstorms after
midnight.
.SUNDAY...East winds 10 to 15 knots. Seas around 2 feet. A chance
of showers and thunderstorms.
.SUNDAY NIGHT...Southeast winds around 15 knots. Seas 2 to
3 feet. A chance of thunderstorms. A chance of showers in the
evening, then showers likely after midnight.
.MONDAY...Southeast winds around 15 knots. Seas 2 to 3 feet.
Showers likely with a chance of thunderstorms.
.MONDAY NIGHT...South winds around 15 knots. Seas 2 to 3 feet.
Showers likely with a chance of thunderstorms.

Winds and seas higher in and near thunderstorms.

$$

GMZ470-091515-
Coastal waters from Cameron LA to High Island TX from 20 to 60 NM-
909 PM CDT Wed May 8 2024

...DENSE FOG ADVISORY IN EFFECT UNTIL 8 AM CDT THURSDAY...
...SMALL CRAFT EXERCISE CAUTION IN EFFECT UNTIL 7 AM CDT
THURSDAY...

.TONIGHT...South winds 10 to 15 knots. Seas 3 to 4 feet. Wave
Detail: Southeast 4 feet at 6 seconds. Patchy fog this evening.
Areas of dense fog after midnight.
.THURSDAY...Southeast winds 10 to 15 knots. Seas 3 to 4 feet.
Wave Detail: Southeast 4 feet at 7 seconds. Areas of dense fog in
the morning, then patchy fog in the afternoon.
.THURSDAY NIGHT...South winds 10 to 15 knots with gusts up to
20 knots, becoming southwest 5 to 10 knots after midnight. Seas
3 to 4 feet. Wave Detail: Southeast 4 feet at 7 seconds. Patchy
fog in the evening, then widespread dense fog after midnight.
.FRIDAY...Northeast winds 10 to 15 knots. Seas 3 to 4 feet. Wave
Detail: South 4 feet at 7 seconds and northeast 1 foot at
3 seconds. Patchy dense fog in the morning.
.FRIDAY NIGHT...Northeast winds 10 to 15 knots. Seas 3 to 4 feet.
Wave Detail: Northeast 3 feet at 4 seconds and southeast 3 feet
at 7 seconds.
.SATURDAY...Northeast winds around 20 knots, becoming east 10 to
15 knots in the afternoon. Seas 3 to 5 feet, occasionally to
6 feet. Wave Detail: East 4 feet at 6 seconds.
.SATURDAY NIGHT...East winds 10 to 15 knots. Seas 2 to 3 feet. A
slight chance of showers and thunderstorms after midnight.
.SUNDAY...East winds 10 to 15 knots. Seas 2 to 4 feet. A chance
of showers and thunderstorms.
.SUNDAY NIGHT...Southeast winds around 15 knots. Seas 3 to
4 feet. A chance of showers and thunderstorms.
.MONDAY...South winds around 15 knots, diminishing to around
10 knots in the afternoon. Seas 3 to 5 feet, occasionally to
6 feet. Showers likely with a chance of thunderstorms.
.MONDAY NIGHT...Southeast winds 10 to 15 knots. Seas 4 to 5 feet,
occasionally to 6 feet. A chance of showers and thunderstorms.

Winds and seas higher in and near thunderstorms.

$$

GMZ472-091515-
Coastal waters from Intracoastal City to Cameron LA from 20 to
60 NM-
909 PM CDT Wed May 8 2024

...DENSE FOG ADVISORY IN EFFECT UNTIL 8 AM CDT THURSDAY...
...SMALL CRAFT EXERCISE CAUTION IN EFFECT UNTIL 7 AM CDT
THURSDAY...

.TONIGHT...South winds 15 to 20 knots with gusts up to 25 knots,
diminishing to 10 to 15 knots with gusts up to 20 knots late.
Seas 3 to 5 feet, occasionally to 6 feet. Wave Detail: Southeast
5 feet at 6 seconds. Patchy fog this evening, then areas of dense
fog after midnight.
.THURSDAY...Southeast winds 10 to 15 knots. Seas 3 to 5 feet,
occasionally to 6 feet. Wave Detail: South 5 feet at 7 seconds.
Areas of fog in the morning, then patchy fog in the afternoon.
.THURSDAY NIGHT...South winds 10 to 15 knots with gusts up to
20 knots, becoming southwest 5 to 10 knots after midnight. Seas
3 to 4 feet. Wave Detail: Southeast 4 feet at 7 seconds.
Widespread dense fog after midnight.
.FRIDAY...Northwest winds 5 to 10 knots, becoming northeast in
the afternoon. Seas 3 to 4 feet. Wave Detail: South 4 feet at
7 seconds and north 1 foot at 3 seconds. Patchy dense fog in the
morning.
.FRIDAY NIGHT...Northeast winds 10 to 15 knots. Seas 3 to 4 feet.
Wave Detail: Northeast 3 feet at 4 seconds and southeast 3 feet
at 7 seconds.
.SATURDAY...Northeast winds 15 to 20 knots, becoming east 10 to
15 knots in the afternoon. Seas 2 to 4 feet. Wave Detail:
Northeast 4 feet at 5 seconds and southeast 2 feet at 6 seconds.
.SATURDAY NIGHT...East winds around 10 knots. Seas 2 to 3 feet. A
slight chance of showers and thunderstorms after midnight.
.SUNDAY...East winds 10 to 15 knots. Seas 2 to 4 feet. A chance
of showers and thunderstorms.
.SUNDAY NIGHT...Southeast winds around 15 knots. Seas around
4 feet. A chance of thunderstorms. A chance of showers in the
evening, then showers likely after midnight.
.MONDAY...South winds 10 to 15 knots. Seas 4 to 5 feet,
occasionally to 6 feet. A chance of thunderstorms. Showers
likely.
.MONDAY NIGHT...Southeast winds 10 to 15 knots. Seas 4 to 5 feet,
occasionally to 6 feet. A chance of thunderstorms. A chance of
showers.

Winds and seas higher in and near thunderstorms.

$$

GMZ475-091515-
Coastal waters from Lower Atchafalaya River to Intracoastal City
LA from 20 to 60 NM-
909 PM CDT Wed May 8 2024

...SMALL CRAFT EXERCISE CAUTION IN EFFECT THROUGH THURSDAY
MORNING...

.TONIGHT...South winds 15 to 20 knots with gusts up to 25 knots,
diminishing to 10 to 15 knots with gusts up to 25 knots late.
Seas 3 to 5 feet, occasionally to 6 feet. Wave Detail: South
5 feet at 6 seconds. Patchy fog.
.THURSDAY...South winds 10 to 15 knots with gusts up to 20 knots.
Seas 3 to 5 feet, occasionally to 6 feet. Wave Detail: South
5 feet at 7 seconds. Patchy fog in the morning.
.THURSDAY NIGHT...South winds 10 to 15 knots with gusts up to
25 knots. Seas 3 to 5 feet, occasionally to 6 feet. Wave Detail:
South 4 feet at 7 seconds. Widespread dense fog after midnight.
.FRIDAY...West winds 5 to 10 knots, becoming north in the
afternoon. Seas 3 to 4 feet. Wave Detail: South 4 feet at
7 seconds and north 1 foot at 3 seconds. A slight chance of
showers and thunderstorms in the morning. Widespread dense fog in
the morning.
.FRIDAY NIGHT...Northeast winds 5 to 10 knots, increasing to
10 to 15 knots with gusts up to 20 knots after midnight. Seas
3 to 4 feet. Wave Detail: Southeast 3 feet at 6 seconds and north
2 feet at 4 seconds.
.SATURDAY...East winds 10 to 15 knots with gusts up to 20 knots.
Seas 2 to 4 feet. Wave Detail: Northeast 3 feet at 5 seconds and
south 3 feet at 6 seconds.
.SATURDAY NIGHT...East winds around 10 knots. Seas 2 to 3 feet. A
slight chance of showers and thunderstorms after midnight.
.SUNDAY...East winds 10 to 15 knots. Seas 2 to 4 feet. A chance
of showers with a slight chance of thunderstorms.
.SUNDAY NIGHT...Southeast winds around 15 knots. Seas 3 to
4 feet. A chance of showers. A slight chance of thunderstorms in
the evening, then a chance of thunderstorms after midnight.
.MONDAY...South winds 10 to 15 knots. Seas 4 to 5 feet,
occasionally to 6 feet. A chance of thunderstorms. Showers
likely.
.MONDAY NIGHT...Southeast winds around 15 knots. Seas 4 to
5 feet, occasionally to 6 feet. A chance of thunderstorms. A
chance of showers in the evening, then showers likely after
midnight.

Winds and seas higher in and near thunderstorms.

$$