Coastal Waters Forecast
Issued by NWS Lake Charles, LA

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FZUS54 KLCH 182000
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Coastal Waters Forecast
National Weather Service Lake Charles LA
300 PM CDT Sat May 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.

GMZ400-190815-
300 PM CDT Sat May 18 2024

.SYNOPSIS...
Scattered showers and thunderstorms 40 to 60 nautical miles south
of Atchafalaya Bay will continue to diminish this evening. Light
onshore flow and low seas expected through Monday with no precipitation.
Winds and seas expected to increase Tuesday through Thursday due
to the pressure gradient increasing between surface high to the
east and low pressure across the Plains.

$$

GMZ430-190815-
Sabine Lake-
300 PM CDT Sat May 18 2024

.TONIGHT...South winds around 5 knots. Lake waters smooth. Patchy
fog after midnight.
.SUNDAY...East winds around 5 knots, becoming southeast in the
afternoon. Lake waters smooth. Patchy fog in the morning.
.SUNDAY NIGHT...South winds 5 to 10 knots. Lake waters light
chop.
.MONDAY...Southeast winds 5 to 10 knots. Lake waters light chop.
.MONDAY NIGHT...Southeast winds around 10 knots. Lake waters
light chop.
.TUESDAY...South winds around 10 knots. Lake waters light chop.
.TUESDAY NIGHT...South winds 10 to 15 knots. Lake waters choppy.
.WEDNESDAY...South winds 10 to 15 knots. Lake waters choppy.
.WEDNESDAY NIGHT...South winds 10 to 15 knots. Lake waters
choppy.
.THURSDAY...South winds 10 to 15 knots. Lake waters choppy.
.THURSDAY NIGHT...South winds 10 to 15 knots. Lake waters choppy.

$$

GMZ432-190815-
Calcasieu Lake-
300 PM CDT Sat May 18 2024

.TONIGHT...South winds around 5 knots, becoming east late. Lake
waters smooth. Patchy fog after midnight.
.SUNDAY...Northeast winds around 5 knots, becoming south in the
afternoon. Lake waters smooth. Patchy fog in the morning.
.SUNDAY NIGHT...South winds 5 to 10 knots. Lake waters light
chop.
.MONDAY...South winds 5 to 10 knots. Lake waters light chop.
.MONDAY NIGHT...South winds around 10 knots. Lake waters light
chop.
.TUESDAY...South winds 10 to 15 knots with gusts up to 20 knots.
Lake waters choppy.
.TUESDAY NIGHT...South winds around 15 knots with gusts up to
20 knots. Lake waters choppy.
.WEDNESDAY...South winds around 15 knots. Lake waters choppy.
.WEDNESDAY NIGHT...South winds 10 to 15 knots. Lake waters
choppy.
.THURSDAY...South winds 10 to 15 knots. Lake waters choppy.
.THURSDAY NIGHT...South winds 10 to 15 knots. Lake waters choppy.

$$

GMZ435-190815-
Vermilion and West Cote Blanche Bays-
300 PM CDT Sat May 18 2024

.TONIGHT...South winds around 5 knots. Bay waters smooth.
.SUNDAY...North winds around 5 knots, becoming southwest in the
afternoon. Bay waters smooth. Patchy fog in the morning.
.SUNDAY NIGHT...South winds 5 to 10 knots. Bay waters light chop.
.MONDAY...Southeast winds 5 to 10 knots. Bay waters light chop.
.MONDAY NIGHT...Southeast winds around 10 knots. Bay waters light
chop.
.TUESDAY...Southeast winds 5 to 10 knots. Bay waters light chop.
.TUESDAY NIGHT...Southeast winds 10 to 15 knots. Bay waters
choppy.
.WEDNESDAY...South winds 10 to 15 knots. Bay waters choppy.
.WEDNESDAY NIGHT...South winds around 10 knots. Bay waters light
chop.
.THURSDAY...South winds around 10 knots. Bay waters light chop.
.THURSDAY NIGHT...South winds around 10 knots. Bay waters light
chop.

$$

GMZ436-190815-
Atchafalaya and East Cote Blanche Bays-
300 PM CDT Sat May 18 2024

.TONIGHT...South winds around 5 knots. Bay waters smooth.
.SUNDAY...North winds around 5 knots, becoming west in the
afternoon. Bay waters smooth.
.SUNDAY NIGHT...South winds 5 to 10 knots. Bay waters light chop.
.MONDAY...Southeast winds 5 to 10 knots. Bay waters light chop.
.MONDAY NIGHT...Southeast winds around 10 knots. Bay waters light
chop.
.TUESDAY...Southeast winds 5 to 10 knots. Bay waters light chop.
.TUESDAY NIGHT...Southeast winds 10 to 15 knots. Bay waters
choppy.
.WEDNESDAY...South winds 10 to 15 knots. Bay waters choppy.
.WEDNESDAY NIGHT...Southeast winds around 10 knots. Bay waters
light chop.
.THURSDAY...Southeast winds 5 to 10 knots. Bay waters light chop.
.THURSDAY NIGHT...South winds around 10 knots. Bay waters light
chop.

$$

GMZ450-190815-
Coastal waters from Cameron LA to High Island TX out 20 NM-
300 PM CDT Sat May 18 2024

.TONIGHT...Southeast winds around 5 knots. Seas around 2 feet.
Wave Detail: South 2 feet at 7 seconds. Patchy fog late.
.SUNDAY...East winds around 5 knots. Seas around 2 feet. Wave
Detail: Southeast 2 feet at 8 seconds and south 1 foot at
7 seconds.
.SUNDAY NIGHT...South winds 5 to 10 knots. Seas around 2 feet.
Wave Detail: Southeast 2 feet at 7 seconds and southeast 1 foot
at 3 seconds.
.MONDAY...Southeast winds around 10 knots. Seas around 2 feet.
Wave Detail: South 2 feet at 4 seconds and southeast 2 feet at
7 seconds.
.MONDAY NIGHT...Southeast winds 10 to 15 knots. Seas 2 to 3 feet.
Wave Detail: Southeast 3 feet at 4 seconds and southeast 1 foot
at 7 seconds.
.TUESDAY...Southeast winds around 15 knots. Seas around 3 feet.
Wave Detail: Southeast 3 feet at 4 seconds.
.TUESDAY NIGHT...Southeast winds 15 to 20 knots. Seas 3 to
5 feet, occasionally to 6 feet.
.WEDNESDAY...South winds 15 to 20 knots. Seas 3 to 5 feet,
occasionally to 6 feet.
.WEDNESDAY NIGHT...Southeast winds 15 to 20 knots. Seas 3 to
4 feet.
.THURSDAY...Southeast winds around 15 knots. Seas around 3 feet.
.THURSDAY NIGHT...South winds 15 to 20 knots. Seas 3 to 4 feet.

$$

GMZ452-190815-
Coastal waters from Intracoastal City to Cameron LA out 20 NM-
300 PM CDT Sat May 18 2024

.TONIGHT...Southeast winds around 5 knots. Seas around 2 feet.
Wave Detail: South 2 feet at 7 seconds.
.SUNDAY...Northeast winds around 5 knots, becoming south in the
afternoon. Seas around 2 feet. Wave Detail: Southeast 2 feet at
8 seconds and south 1 foot at 7 seconds.
.SUNDAY NIGHT...South winds 5 to 10 knots. Seas around 2 feet.
Wave Detail: South 2 feet at 7 seconds.
.MONDAY...Southeast winds around 10 knots. Seas around 2 feet.
Wave Detail: South 2 feet at 6 seconds.
.MONDAY NIGHT...Southeast winds 10 to 15 knots. Seas 2 to 3 feet.
Wave Detail: Southeast 2 feet at 4 seconds and southeast 1 foot
at 7 seconds.
.TUESDAY...Southeast winds 10 to 15 knots. Seas 2 to 3 feet. Wave
Detail: South 3 feet at 4 seconds.
.TUESDAY NIGHT...Southeast winds 15 to 20 knots. Seas 2 to
4 feet.
.WEDNESDAY...South winds 15 to 20 knots. Seas 2 to 4 feet.
.WEDNESDAY NIGHT...Southeast winds 15 to 20 knots. Seas 2 to
4 feet.
.THURSDAY...Southeast winds around 15 knots. Seas 2 to 3 feet.
.THURSDAY NIGHT...South winds 15 to 20 knots. Seas 2 to 4 feet.

$$

GMZ455-190815-
Coastal waters from Lower Atchafalaya River to Intracoastal City
LA out 20 NM-
300 PM CDT Sat May 18 2024

.TONIGHT...Southeast winds around 5 knots. Seas around 2 feet.
Wave Detail: South 1 foot at 6 seconds.
.SUNDAY...Northeast winds around 5 knots, becoming southwest in
the afternoon. Seas 1 to 2 feet. Wave Detail: South 1 foot at
7 seconds.
.SUNDAY NIGHT...South winds 5 to 10 knots. Seas around 2 feet.
.MONDAY...Southeast winds around 10 knots. Seas around 2 feet.
Wave Detail: Southeast 1 foot at 2 seconds.
.MONDAY NIGHT...Southeast winds around 10 knots. Seas around
2 feet. Wave Detail: Southeast 1 foot at 3 seconds.
.TUESDAY...Southeast winds around 10 knots. Seas around 2 feet.
Wave Detail: Southeast 2 feet at 3 seconds.
.TUESDAY NIGHT...Southeast winds 10 to 15 knots. Seas 2 to
3 feet.
.WEDNESDAY...Southeast winds 10 to 15 knots. Seas 2 to 3 feet.
.WEDNESDAY NIGHT...Southeast winds 10 to 15 knots. Seas around
2 feet.
.THURSDAY...Southeast winds around 10 knots. Seas around 2 feet.
.THURSDAY NIGHT...South winds 10 to 15 knots. Seas around 2 feet.

$$

GMZ470-190815-
Coastal waters from Cameron LA to High Island TX from 20 to 60 NM-
300 PM CDT Sat May 18 2024

.TONIGHT...Southeast winds around 5 knots. Seas 2 to 3 feet. Wave
Detail: South 3 feet at 7 seconds.
.SUNDAY...East winds around 5 knots. Seas 2 to 3 feet. Wave
Detail: Southeast 3 feet at 8 seconds and south 1 foot at
7 seconds.
.SUNDAY NIGHT...Southeast winds 5 to 10 knots. Seas 2 to 3 feet.
Wave Detail: South 3 feet at 7 seconds.
.MONDAY...Southeast winds around 10 knots. Seas 2 to 3 feet. Wave
Detail: Southeast 2 feet at 7 seconds.
.MONDAY NIGHT...Southeast winds 10 to 15 knots. Seas 2 to 3 feet.
Wave Detail: Southeast 3 feet at 6 seconds.
.TUESDAY...Southeast winds 10 to 15 knots. Seas around 3 feet.
Wave Detail: Southeast 3 feet at 6 seconds.
.TUESDAY NIGHT...Southeast winds 15 to 20 knots. Seas 3 to
5 feet, occasionally to 6 feet.
.WEDNESDAY...Southeast winds 15 to 20 knots. Seas 4 to 5 feet,
occasionally to 6 feet.
.WEDNESDAY NIGHT...Southeast winds 15 to 20 knots. Seas around
4 feet.
.THURSDAY...Southeast winds around 15 knots. Seas 3 to 4 feet.
.THURSDAY NIGHT...Southeast winds around 15 knots. Seas 3 to
4 feet.

$$

GMZ472-190815-
Coastal waters from Intracoastal City to Cameron LA from 20 to
60 NM-
300 PM CDT Sat May 18 2024

.TONIGHT...Southeast winds around 5 knots. Seas 2 to 4 feet. Wave
Detail: South 3 feet at 7 seconds.
.SUNDAY...East winds around 5 knots. Seas 3 to 4 feet. Wave
Detail: Southeast 3 feet at 8 seconds and south 1 foot at
7 seconds.
.SUNDAY NIGHT...Southeast winds 5 to 10 knots. Seas 2 to 3 feet.
Wave Detail: South 3 feet at 7 seconds.
.MONDAY...Southeast winds around 10 knots. Seas 2 to 3 feet. Wave
Detail: South 3 feet at 6 seconds.
.MONDAY NIGHT...Southeast winds 10 to 15 knots. Seas 2 to 3 feet.
Wave Detail: Southeast 3 feet at 6 seconds.
.TUESDAY...Southeast winds 10 to 15 knots. Seas around 3 feet.
Wave Detail: Southeast 3 feet at 6 seconds.
.TUESDAY NIGHT...Southeast winds 15 to 20 knots. Seas 3 to
4 feet.
.WEDNESDAY...Southeast winds 15 to 20 knots. Seas 3 to 4 feet.
.WEDNESDAY NIGHT...Southeast winds around 15 knots. Seas 3 to
4 feet.
.THURSDAY...Southeast winds 10 to 15 knots. Seas 3 to 4 feet.
.THURSDAY NIGHT...Southeast winds around 15 knots. Seas 3 to
4 feet.

$$

GMZ475-190815-
Coastal waters from Lower Atchafalaya River to Intracoastal City
LA from 20 to 60 NM-
300 PM CDT Sat May 18 2024

.TONIGHT...Southeast winds around 5 knots. Seas 3 to 5 feet,
occasionally to 6 feet. Wave Detail: Southeast 5 feet at
8 seconds and southwest 1 foot at 7 seconds.
.SUNDAY...Northeast winds around 5 knots. Seas 3 to 5 feet,
occasionally to 6 feet. Wave Detail: Southeast 4 feet at
8 seconds and southwest 1 foot at 7 seconds.
.SUNDAY NIGHT...Southeast winds 5 to 10 knots. Seas 2 to 4 feet.
Wave Detail: South 3 feet at 7 seconds.
.MONDAY...Southeast winds around 10 knots. Seas 2 to 3 feet. Wave
Detail: Southeast 3 feet at 7 seconds.
.MONDAY NIGHT...Southeast winds around 10 knots. Seas 2 to
3 feet. Wave Detail: Southeast 3 feet at 7 seconds.
.TUESDAY...Southeast winds around 10 knots. Seas 2 to 3 feet.
Wave Detail: Southeast 3 feet at 6 seconds.
.TUESDAY NIGHT...Southeast winds 10 to 15 knots with gusts up to
20 knots. Seas 2 to 4 feet.
.WEDNESDAY...Southeast winds around 15 knots. Seas 3 to 4 feet.
.WEDNESDAY NIGHT...Southeast winds 10 to 15 knots. Seas around
3 feet.
.THURSDAY...Southeast winds 10 to 15 knots. Seas around 3 feet.
.THURSDAY NIGHT...Southeast winds 10 to 15 knots. Seas around
3 feet.

$$