Coastal Waters Forecast
Issued by NWS Lake Charles, LA

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FZUS54 KLCH 180932
CWFLCH

Coastal Waters Forecast
National Weather Service Lake Charles LA
432 AM CDT Sun Apr 18 2021

Coastal waters from the Lower Atchafalaya River LA to High
Island TX out 60 nautical miles including Sabine and
Calcasieu Lakes and Vermilion Bay

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.

GMZ400-182215-
Synopsis for Lower Atchafalaya River LA to High Island TX out
60 NM including Sabine and Calcasieu Lakes and Vermilion Bay
432 AM CDT Sun Apr 18 2021

.SYNOPSIS...
Gusty northerly winds will have started to relax this morning and
will continue to taper off into Sunday. Light to modest offshore
winds are then expected into early next week.

$$

GMZ430-182215-
Sabine Lake-
432 AM CDT Sun Apr 18 2021

.TODAY...North winds around 10 knots. Lake waters a light chop.
.TONIGHT...North winds 5 to 10 knots. Lake waters a light chop.
.MONDAY...Northeast winds 5 to 10 knots. Lake waters a light
chop.
.MONDAY NIGHT...Southeast winds around 5 knots becoming northeast
after midnight. Lake waters smooth.
.TUESDAY...Northeast winds around 5 knots becoming southwest in
the afternoon. Lake waters smooth.
.TUESDAY NIGHT...Southwest winds around 5 knots becoming north
after midnight. Lake waters smooth increasing to a light chop
after midnight.
.WEDNESDAY...North winds around 10 knots. Lake waters a light
chop.
.WEDNESDAY NIGHT...Northeast winds 5 to 10 knots. Lake waters a
light chop.
.THURSDAY...East winds 10 to 15 knots. Lake waters choppy.
.THURSDAY NIGHT...Southeast winds 10 to 15 knots. Lake waters
choppy.

$$

GMZ432-182215-
Calcasieu Lake-
432 AM CDT Sun Apr 18 2021

.TODAY...North winds around 10 knots. Lake waters a light chop.
.TONIGHT...North winds 5 to 10 knots. Lake waters a light chop.
.MONDAY...Northeast winds 5 to 10 knots. Lake waters a light
chop.
.MONDAY NIGHT...East winds around 5 knots. Lake waters smooth.
.TUESDAY...Northeast winds around 5 knots becoming southwest in
the afternoon. Lake waters smooth.
.TUESDAY NIGHT...Southwest winds 5 to 10 knots becoming northwest
after midnight. Lake waters a light chop.
.WEDNESDAY...North winds 10 to 15 knots. Lake waters choppy.
.WEDNESDAY NIGHT...Northeast winds 5 to 10 knots. Lake waters a
light chop.
.THURSDAY...East winds 10 to 15 knots. Lake waters choppy.
.THURSDAY NIGHT...Southeast winds 10 to 15 knots. Lake waters
choppy.

$$

GMZ435-182215-
Vermilion Bay-
432 AM CDT Sun Apr 18 2021

.TODAY...North winds 10 to 15 knots. Bay waters choppy.
.TONIGHT...North winds around 10 knots. Bay waters a light chop.
.MONDAY...Northeast winds 5 to 10 knots. Bay waters a light chop.
.MONDAY NIGHT...Northeast winds around 5 knots. Bay waters
smooth.
.TUESDAY...North winds around 5 knots. Bay waters smooth.
.TUESDAY NIGHT...Southwest winds around 5 knots becoming
northwest after midnight. Bay waters smooth increasing to a light
chop after midnight.
.WEDNESDAY...North winds 10 to 15 knots. Bay waters choppy.
.WEDNESDAY NIGHT...Northeast winds 10 to 15 knots. Bay waters
choppy.
.THURSDAY...East winds 10 to 15 knots. Bay waters choppy.
.THURSDAY NIGHT...Southeast winds 10 to 15 knots. Bay waters
choppy.

$$

GMZ450-182215-
Coastal waters from Cameron LA to High Island TX out 20 NM-
432 AM CDT Sun Apr 18 2021

...SMALL CRAFT EXERCISE CAUTION IN EFFECT UNTIL 1 PM CDT THIS
AFTERNOON...

.TODAY...North winds 15 to 20 knots. Seas 1 to 3 feet.
.TONIGHT...North winds 10 to 15 knots. Seas 1 to 3 feet.
.MONDAY...Northeast winds 10 to 15 knots. Seas 1 to 3 feet.
.MONDAY NIGHT...East winds around 5 knots. Seas 1 foot or less.
.TUESDAY...Northeast winds around 5 knots becoming southeast in
the afternoon. Seas 1 foot or less.
.TUESDAY NIGHT...Southwest winds 5 to 10 knots becoming northwest
10 to 15 knots after midnight. Seas 1 to 3 feet.
.WEDNESDAY...Northeast winds 15 to 20 knots. Seas 1 to 3 feet.
.WEDNESDAY NIGHT...East winds 10 to 15 knots. Seas 1 to 3 feet.
.THURSDAY...East winds 15 to 20 knots. Seas 3 to 5 feet.
.THURSDAY NIGHT...Southeast winds 15 to 20 knots. Seas 3 to
5 feet.

$$

GMZ452-182215-
Coastal waters from Intracoastal City to Cameron LA out 20 NM-
432 AM CDT Sun Apr 18 2021

...SMALL CRAFT EXERCISE CAUTION IN EFFECT UNTIL 1 PM CDT THIS
AFTERNOON...

.TODAY...North winds 10 to 15 knots. Seas 1 to 3 feet.
.TONIGHT...North winds 10 to 15 knots. Seas 1 to 3 feet.
.MONDAY...Northeast winds 10 to 15 knots. Seas 1 to 3 feet.
.MONDAY NIGHT...East winds around 5 knots. Seas 1 foot or less.
.TUESDAY...Northeast winds 5 to 10 knots becoming southeast in
the afternoon. Seas 1 to 2 feet.
.TUESDAY NIGHT...Southwest winds 5 to 10 knots becoming northwest
10 to 15 knots after midnight. Seas 1 to 2 feet.
.WEDNESDAY...North winds 10 to 15 knots. Seas 1 to 3 feet.
.WEDNESDAY NIGHT...Northeast winds 10 to 15 knots. Seas 1 to
3 feet.
.THURSDAY...East winds 10 to 15 knots. Seas 2 to 4 feet.
.THURSDAY NIGHT...Southeast winds 15 to 20 knots. Seas 3 to
5 feet.

$$

GMZ455-182215-
Coastal waters from Lower Atchafalaya River to Intracoastal City
LA out 20 NM-
432 AM CDT Sun Apr 18 2021

...SMALL CRAFT EXERCISE CAUTION IN EFFECT UNTIL 1 PM CDT THIS
AFTERNOON...

.TODAY...North winds 10 to 15 knots. Seas 1 to 3 feet. Slight
chance of rain showers in the morning.
.TONIGHT...North winds 10 to 15 knots. Seas 1 to 3 feet.
.MONDAY...Northeast winds 10 to 15 knots. Seas 1 to 3 feet.
.MONDAY NIGHT...Northeast winds 5 to 10 knots. Seas 1 foot or
less. Slight chance of rain showers after midnight.
.TUESDAY...North winds 5 to 10 knots. Seas 1 foot or less.
.TUESDAY NIGHT...West winds up to 5 knots becoming northwest
10 to 15 knots after midnight. Seas 1 foot or less.
.WEDNESDAY...North winds 10 to 15 knots. Seas 1 to 3 feet.
.WEDNESDAY NIGHT...Northeast winds 10 to 15 knots. Seas 1 to
3 feet.
.THURSDAY...East winds 15 to 20 knots. Seas 1 to 3 feet.
.THURSDAY NIGHT...Southeast winds 15 to 20 knots. Seas 1 to
3 feet.

$$

GMZ470-182215-
Waters from Cameron LA to High Island TX from 20 to 60 NM-
432 AM CDT Sun Apr 18 2021

...SMALL CRAFT EXERCISE CAUTION IN EFFECT UNTIL 1 PM CDT THIS
AFTERNOON...

.TODAY...North winds 15 to 20 knots. Seas 3 to 5 feet.
.TONIGHT...North winds 10 to 15 knots. Seas 2 to 4 feet.
.MONDAY...Northeast winds 10 to 15 knots. Seas 2 to 4 feet.
.MONDAY NIGHT...East winds 5 to 10 knots. Seas 2 to 4 feet.
.TUESDAY...Northeast winds around 5 knots. Seas 1 to 3 feet.
.TUESDAY NIGHT...South winds 5 to 10 knots becoming northwest
10 to 15 knots after midnight. Seas 2 to 4 feet.
.WEDNESDAY...Northeast winds around 15 knots. Seas 3 to 5 feet.
.WEDNESDAY NIGHT...East winds around 15 knots. Seas 3 to 5 feet.
.THURSDAY...East winds 15 to 20 knots. Seas 3 to 6 feet with
occasional seas up to 7 feet.
.THURSDAY NIGHT...Southeast winds 15 to 20 knots. Seas 4 to
7 feet with occasional seas up to 8 feet.

$$

GMZ472-182215-
Waters from Intracoastal City to Cameron LA from 20 to 60 NM-
432 AM CDT Sun Apr 18 2021

...SMALL CRAFT EXERCISE CAUTION IN EFFECT UNTIL 1 PM CDT THIS
AFTERNOON...

.TODAY...North winds 15 to 20 knots. Seas 3 to 5 feet. Slight
chance of rain showers.
.TONIGHT...North winds around 15 knots. Seas 2 to 4 feet.
.MONDAY...Northeast winds 10 to 15 knots. Seas 3 to 5 feet.
.MONDAY NIGHT...East winds 5 to 10 knots. Seas 2 to 4 feet.
Slight chance of showers after midnight.
.TUESDAY...Northeast winds 5 to 10 knots. Seas 2 to 4 feet.
.TUESDAY NIGHT...Northwest winds 10 to 15 knots. Seas 2 to
4 feet.
.WEDNESDAY...North winds 10 to 15 knots. Seas 3 to 5 feet.
.WEDNESDAY NIGHT...Northeast winds around 15 knots. Seas 3 to
5 feet.
.THURSDAY...East winds 15 to 20 knots. Seas 3 to 6 feet with
occasional seas up to 7 feet.
.THURSDAY NIGHT...Southeast winds 15 to 20 knots. Seas 4 to
7 feet with occasional seas up to 8 feet.

$$

GMZ475-182215-
Waters from Lower Atchafalaya River to Intracoastal City LA from
20 to 60 NM-
432 AM CDT Sun Apr 18 2021

...SMALL CRAFT EXERCISE CAUTION IN EFFECT UNTIL 1 PM CDT THIS
AFTERNOON...

.TODAY...North winds 15 to 20 knots. Seas 3 to 5 feet. Slight
chance of showers.
.TONIGHT...North winds around 15 knots. Seas 2 to 4 feet. Slight
chance of showers in the evening.
.MONDAY...Northeast winds 10 to 15 knots. Seas 3 to 5 feet.
.MONDAY NIGHT...East winds 5 to 10 knots. Seas 2 to 4 feet.
Slight chance of showers after midnight.
.TUESDAY...Northeast winds 5 to 10 knots. Seas 2 to 4 feet.
Slight chance of showers in the morning.
.TUESDAY NIGHT...Northwest winds 5 to 10 knots. Seas 1 to 3 feet.
.WEDNESDAY...North winds 10 to 15 knots. Seas 3 to 5 feet.
.WEDNESDAY NIGHT...Northeast winds around 15 knots. Seas 3 to
5 feet.
.THURSDAY...East winds 15 to 20 knots. Seas 4 to 7 feet with
occasional seas up to 8 feet.
.THURSDAY NIGHT...Southeast winds 15 to 20 knots. Seas 3 to
6 feet with occasional seas up to 7 feet.

$$

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