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National Weather Service Marine Forecast FZUS54 KLCH

FZUS54 KLCH 161524
CWFLCH

Coastal Waters Forecast
National Weather Service Lake Charles LA
1024 AM CDT Sun May 16 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.

GMZ400-170415-
Synopsis for Lower Atchafalaya River LA to High Island TX out
60 NM including Sabine and Calcasieu Lakes and Vermilion Bay
1024 AM CDT Sun May 16 2021

SYNOPSIS

Moderate onshore flow will persist through the week. A series of
upper level disturbances will cross the region producing daily
scattered to widespread showers and thunderstorms over the coastal
waters. Seas are expected to remain elevated as the pressure
gradient will strengthen.



GMZ430-170415-
Sabine Lake-
1024 AM CDT Sun May 16 2021

REST OF TODAY
Southeast winds 10 to 15 knots. Lake waters
choppy. Slight chance of showers late in the morning, then chance
of showers and thunderstorms in the afternoon.

TONIGHT
Southeast winds 10 to 15 knots. Lake waters choppy.
Chance of showers and thunderstorms.

MONDAY
Southeast winds 10 to 15 knots. Lake waters choppy.
Chance of thunderstorms in the morning. Showers likely through
the day. Thunderstorms likely in the afternoon.

MONDAY NIGHT
Southeast winds 10 to 15 knots. Lake waters
choppy. Chance of showers and thunderstorms.

TUESDAY
Southeast winds 10 to 15 knots. Lake waters choppy.
Chance of showers and thunderstorms in the morning, then showers
and thunderstorms likely in the afternoon.

TUESDAY NIGHT
Southeast winds 10 to 15 knots. Lake waters
choppy. Chance of showers and thunderstorms.

WEDNESDAY
Southeast winds 10 to 15 knots. Lake waters choppy.
Showers likely in the morning. Chance of thunderstorms through
the day. Showers in the afternoon.

WEDNESDAY NIGHT
Southeast winds 10 to 15 knots. Lake waters
choppy. Showers likely in the evening. Chance of thunderstorms
through the night. Chance of showers after midnight.

THURSDAY
Southeast winds 10 to 15 knots. Lake waters choppy.
Showers likely in the morning. Chance of thunderstorms through
the day. Showers in the afternoon.

THURSDAY NIGHT
Southeast winds 10 to 15 knots. Lake waters
choppy. Chance of thunderstorms in the evening. Chance of showers
through the night. Slight chance of thunderstorms after midnight.



GMZ432-170415-
Calcasieu Lake-
1024 AM CDT Sun May 16 2021

REST OF TODAY
Southeast winds 10 to 15 knots. Lake waters
choppy. Slight chance of showers and thunderstorms in the
afternoon.

TONIGHT
Southeast winds 10 to 15 knots. Lake waters choppy.
Slight chance of showers and thunderstorms in the evening, then
chance of showers and thunderstorms after midnight.

MONDAY
Southeast winds 10 to 15 knots. Lake waters choppy.
Chance of thunderstorms in the morning. Showers likely through
the day. Thunderstorms likely in the afternoon.

MONDAY NIGHT
Southeast winds 10 to 15 knots. Lake waters
choppy. Chance of showers and thunderstorms.

TUESDAY
Southeast winds 10 to 15 knots. Lake waters choppy.
Chance of showers and thunderstorms in the morning, then showers
and thunderstorms likely in the afternoon.

TUESDAY NIGHT
Southeast winds 10 to 15 knots. Lake waters
choppy. Chance of showers and thunderstorms.

WEDNESDAY
Southeast winds 10 to 15 knots. Lake waters choppy.
Showers likely in the morning. Chance of thunderstorms through
the day. Showers in the afternoon.

WEDNESDAY NIGHT
Southeast winds 10 to 15 knots. Lake waters
choppy. Showers likely and chance of thunderstorms in the
evening, then chance of showers and slight chance of
thunderstorms after midnight.

THURSDAY
Southeast winds 10 to 15 knots. Lake waters choppy.
Showers likely in the morning. Chance of thunderstorms through
the day. Showers in the afternoon.

THURSDAY NIGHT
Southeast winds 10 to 15 knots. Lake waters
choppy. Chance of thunderstorms in the evening. Chance of showers
through the night. Slight chance of thunderstorms after midnight.



GMZ435-170415-
Vermilion Bay-
1024 AM CDT Sun May 16 2021

REST OF TODAY
Southeast winds 10 to 15 knots. Bay waters
choppy.

TONIGHT
Southeast winds 10 to 15 knots. Bay waters choppy.
Slight chance of showers and thunderstorms after midnight.

MONDAY
Southeast winds 10 to 15 knots. Bay waters choppy.
Chance of showers in the morning. Chance of thunderstorms through
the day. Showers likely in the afternoon.

MONDAY NIGHT
Southeast winds 10 to 15 knots. Bay waters
choppy. Chance of showers and thunderstorms.

TUESDAY
Southeast winds 10 to 15 knots. Bay waters choppy.
Chance of showers in the morning. Chance of thunderstorms through
the day. Showers likely in the afternoon.

TUESDAY NIGHT
Southeast winds 15 to 20 knots. Bay waters
rough. Chance of showers and thunderstorms.

WEDNESDAY
Southeast winds 15 to 20 knots. Bay waters rough.
Chance of showers in the morning. Chance of thunderstorms through
the day. Showers likely in the afternoon.

WEDNESDAY NIGHT
Southeast winds 15 to 20 knots. Bay waters
rough. Chance of showers and slight chance of thunderstorms.

THURSDAY
Southeast winds 15 to 20 knots. Bay waters rough.
Chance of showers and slight chance of thunderstorms in the
morning, then showers likely and chance of thunderstorms in the
afternoon.

THURSDAY NIGHT
Southeast winds 10 to 15 knots. Bay waters
choppy. Chance of thunderstorms in the evening. Chance of showers
through the night. Slight chance of thunderstorms after midnight.



GMZ450-170415-
Coastal waters from Cameron LA to High Island TX out 20 NM-
1024 AM CDT Sun May 16 2021

...SMALL CRAFT EXERCISE CAUTION IN EFFECT THROUGH MONDAY
EVENING...

REST OF TODAY
Southeast winds 15 to 20 knots. Seas 3 to
5 feet. Slight chance of showers late in the morning, then chance
of showers and thunderstorms in the afternoon.

TONIGHT
Southeast winds 15 to 20 knots. Seas 3 to 5 feet.
Chance of showers and thunderstorms.

MONDAY
Southeast winds around 15 knots. Seas 2 to 4 feet.
Showers likely in the morning. Chance of thunderstorms through
the day. Chance of showers in the afternoon.

MONDAY NIGHT
Southeast winds 15 to 20 knots. Seas 3 to 5 feet.
Chance of showers and thunderstorms.

TUESDAY
Southeast winds 15 to 20 knots. Seas 3 to 5 feet.
Chance of showers and thunderstorms.

TUESDAY NIGHT
Southeast winds 15 to 20 knots. Seas 3 to
5 feet. Chance of showers and thunderstorms.

WEDNESDAY
Southeast winds 15 to 20 knots. Seas 3 to 5 feet.
Showers likely in the morning. Chance of thunderstorms through
the day. Showers in the afternoon.

WEDNESDAY NIGHT
Southeast winds 15 to 20 knots. Seas 3 to
5 feet. Showers likely in the evening. Chance of thunderstorms
through the night. Chance of showers after midnight.

THURSDAY
Southeast winds 15 to 20 knots. Seas 3 to 5 feet.
Showers likely in the morning. Chance of thunderstorms through
the day. Showers in the afternoon.

THURSDAY NIGHT
Southeast winds 15 to 20 knots. Seas 3 to
5 feet. Chance of showers and slight chance of thunderstorms.



GMZ452-170415-
Coastal waters from Intracoastal City to Cameron LA out 20 NM-
1024 AM CDT Sun May 16 2021

...SMALL CRAFT EXERCISE CAUTION IN EFFECT THROUGH MONDAY
EVENING...

REST OF TODAY
Southeast winds 15 to 20 knots. Seas 2 to
4 feet. Slight chance of showers and thunderstorms in the
afternoon.

TONIGHT
Southeast winds 15 to 20 knots. Seas 3 to 5 feet.
Slight chance of showers and thunderstorms in the evening. Chance
of showers and thunderstorms after midnight.

MONDAY
Southeast winds 10 to 15 knots. Seas 3 to 5 feet.
Showers likely and chance of thunderstorms.

MONDAY NIGHT
Southeast winds 15 to 20 knots. Seas 3 to 5 feet.
Chance of showers and thunderstorms.

TUESDAY
Southeast winds 15 to 20 knots. Seas 3 to 5 feet.
Chance of showers and thunderstorms.

TUESDAY NIGHT
Southeast winds 15 to 20 knots. Seas 3 to
5 feet. Chance of showers and thunderstorms.

WEDNESDAY
Southeast winds 15 to 20 knots. Seas 3 to 5 feet.
Chance of showers in the morning. Chance of thunderstorms through
the day. Showers likely in the afternoon.

WEDNESDAY NIGHT
Southeast winds 15 to 20 knots. Seas 3 to
5 feet. Chance of showers and slight chance of thunderstorms.

THURSDAY
Southeast winds 15 to 20 knots. Seas 3 to 5 feet.
Slight chance of thunderstorms in the morning. Showers likely
through the day. Chance of thunderstorms in the afternoon.

THURSDAY NIGHT
Southeast winds 15 to 20 knots. Seas 3 to
5 feet. Chance of thunderstorms in the evening. Chance of showers
through the night. Slight chance of thunderstorms after midnight.



GMZ455-170415-
Coastal waters from Lower Atchafalaya River to Intracoastal City
LA out 20 NM-
1024 AM CDT Sun May 16 2021

...SMALL CRAFT EXERCISE CAUTION IN EFFECT THROUGH MONDAY
EVENING...

REST OF TODAY
Southeast winds 10 to 15 knots. Seas 1 to
3 feet.

TONIGHT
Southeast winds 15 to 20 knots. Seas 2 to 4 feet.
Slight chance of showers and thunderstorms after midnight.

MONDAY
Southeast winds 10 to 15 knots. Seas 2 to 4 feet.
Chance of showers and thunderstorms.

MONDAY NIGHT
Southeast winds 15 to 20 knots. Seas 2 to 4 feet.
Chance of showers and thunderstorms.

TUESDAY
Southeast winds 15 to 20 knots. Seas 1 to 3 feet.
Chance of showers and thunderstorms.

TUESDAY NIGHT
Southeast winds 15 to 20 knots. Seas 1 to
3 feet. Chance of showers and thunderstorms.

WEDNESDAY
Southeast winds 15 to 20 knots. Seas 1 to 3 feet.
Chance of showers and slight chance of thunderstorms in the
morning, then showers likely and chance of thunderstorms in the
afternoon.

WEDNESDAY NIGHT
Southeast winds 20 to 25 knots. Seas 1 to
3 feet. Chance of showers and slight chance of thunderstorms.

THURSDAY
Southeast winds 15 to 20 knots. Seas 1 to 3 feet.
Chance of showers and slight chance of thunderstorms in the
morning, then showers likely and chance of thunderstorms in the
afternoon.

THURSDAY NIGHT
Southeast winds 15 to 20 knots. Seas 1 to
3 feet. Chance of showers and slight chance of thunderstorms.



GMZ470-170415-
Waters from Cameron LA to High Island TX from 20 to 60 NM-
1024 AM CDT Sun May 16 2021

...SMALL CRAFT EXERCISE CAUTION IN EFFECT THROUGH MONDAY
EVENING...

REST OF TODAY
Southeast winds 15 to 20 knots. Seas 3 to
6 feet. Slight chance of showers through the day. Slight chance
of thunderstorms in the afternoon.

TONIGHT
Southeast winds 15 to 20 knots. Seas 4 to 7 feet with
occasional seas up to 7 feet. Chance of showers and
thunderstorms.

MONDAY
Southeast winds around 15 knots. Seas 3 to 6 feet with
occasional seas up to 7 feet. Chance of showers and
thunderstorms.

MONDAY NIGHT
Southeast winds 15 to 20 knots. Seas 3 to 6 feet
with occasional seas up to 7 feet. Slight chance of showers and
thunderstorms through the night.

TUESDAY
Southeast winds 15 to 20 knots. Seas 3 to 6 feet with
occasional seas up to 7 feet. Chance of showers and
thunderstorms.

TUESDAY NIGHT
Southeast winds around 20 knots. Seas 4 to
7 feet with occasional seas up to 7 feet. Chance of showers and
thunderstorms.

WEDNESDAY
Southeast winds 15 to 20 knots. Seas 4 to 7 feet
with occasional seas up to 8 feet. Chance of showers in the
morning. Chance of thunderstorms through the day. Showers likely
in the afternoon.

WEDNESDAY NIGHT
Southeast winds around 20 knots. Seas 4 to
7 feet with occasional seas up to 8 feet. Showers likely in the
evening. Chance of thunderstorms through the night. Chance of
showers after midnight.

THURSDAY
Southeast winds 15 to 20 knots. Seas 4 to 7 feet with
occasional seas up to 8 feet. Showers likely and chance of
thunderstorms.

THURSDAY NIGHT
Southeast winds 15 to 20 knots. Seas 4 to
7 feet with occasional seas up to 8 feet. Chance of showers and
slight chance of thunderstorms.



GMZ472-170415-
Waters from Intracoastal City to Cameron LA from 20 to 60 NM-
1024 AM CDT Sun May 16 2021

...SMALL CRAFT EXERCISE CAUTION IN EFFECT THROUGH MONDAY
EVENING...

REST OF TODAY
Southeast winds 15 to 20 knots. Seas 3 to 6 feet
with occasional seas up to 7 feet. Slight chance of showers and
thunderstorms in the afternoon.

TONIGHT
Southeast winds 15 to 20 knots. Seas 3 to 6 feet with
occasional seas up to 7 feet. Slight chance of showers and
thunderstorms.

MONDAY
Southeast winds around 15 knots. Seas 3 to 6 feet with
occasional seas up to 7 feet. Chance of showers and
thunderstorms.

MONDAY NIGHT
Southeast winds 15 to 20 knots. Seas 3 to 6 feet
with occasional seas up to 7 feet. Chance of showers in the
evening. Slight chance of thunderstorms through the night. Slight
chance of showers after midnight.

TUESDAY
Southeast winds 15 to 20 knots. Seas 3 to 6 feet with
occasional seas up to 7 feet. Chance of showers and
thunderstorms.

TUESDAY NIGHT
Southeast winds around 20 knots. Seas 4 to
7 feet with occasional seas up to 8 feet. Slight chance of
showers and thunderstorms in the evening, then chance of showers
and thunderstorms after midnight.

WEDNESDAY
Southeast winds 15 to 20 knots. Seas 4 to 7 feet
with occasional seas up to 8 feet. Chance of showers and
thunderstorms in the morning, then showers likely and slight
chance of thunderstorms in the afternoon.

WEDNESDAY NIGHT
Southeast winds around 20 knots. Seas 4 to
7 feet with occasional seas up to 8 feet. Chance of showers and
slight chance of thunderstorms.

THURSDAY
Southeast winds 15 to 20 knots. Seas 4 to 7 feet with
occasional seas up to 8 feet. Chance of showers and slight chance
of thunderstorms in the morning, then showers likely and chance
of thunderstorms in the afternoon.

THURSDAY NIGHT
Southeast winds 15 to 20 knots. Seas 4 to
7 feet with occasional seas up to 8 feet. Chance of showers and
slight chance of thunderstorms.



GMZ475-170415-
Waters from Lower Atchafalaya River to Intracoastal City LA from
20 to 60 NM-
1024 AM CDT Sun May 16 2021

...SMALL CRAFT EXERCISE CAUTION IN EFFECT THROUGH MONDAY
EVENING...

REST OF TODAY
Southeast winds 15 to 20 knots. Seas 3 to 6 feet
with occasional seas up to 7 feet.

TONIGHT
Southeast winds 15 to 20 knots. Seas 3 to 6 feet.
Slight chance of showers and thunderstorms after midnight.

MONDAY
Southeast winds around 15 knots. Seas 3 to 6 feet with
occasional seas up to 7 feet. Chance of showers and
thunderstorms.

MONDAY NIGHT
Southeast winds 15 to 20 knots. Seas 3 to 6 feet
with occasional seas up to 7 feet. Chance of showers and
thunderstorms.

TUESDAY
Southeast winds 15 to 20 knots. Seas 3 to 6 feet with
occasional seas up to 7 feet. Chance of showers and
thunderstorms.

TUESDAY NIGHT
Southeast winds 15 to 20 knots. Seas 4 to 7 feet
with occasional seas up to 8 feet. Chance of showers and
thunderstorms.

WEDNESDAY
Southeast winds 15 to 20 knots. Seas 4 to 7 feet
with occasional seas up to 8 feet. Slight chance of showers and
thunderstorms in the morning, then chance of showers and
thunderstorms in the afternoon.

WEDNESDAY NIGHT
Southeast winds 15 to 20 knots. Seas 4 to
7 feet with occasional seas up to 8 feet. Chance of showers and
slight chance of thunderstorms.

THURSDAY
Southeast winds 15 to 20 knots. Seas 4 to 7 feet with
occasional seas up to 8 feet. Chance of showers and slight chance
of thunderstorms in the morning, then showers likely and chance
of thunderstorms in the afternoon.

THURSDAY NIGHT
Southeast winds 15 to 20 knots. Seas 4 to
7 feet with occasional seas up to 8 feet. Chance of showers and
slight chance of thunderstorms.



19