Coastal Waters Forecast
Issued by NWS Lake Charles, LA

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FZUS54 KLCH 111424
CWFLCH

Coastal Waters Forecast
National Weather Service Lake Charles LA
924 AM CDT Mon Oct 11 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.

GMZ400-120315-
Synopsis for Lower Atchafalaya River LA to High Island TX out
60 NM including Sabine and Calcasieu Lakes and Vermilion Bay
924 AM CDT Mon Oct 11 2021

.SYNOPSIS...
A light to moderate onshore flow is expected to continue today
through most of the week despite the approach of a cool front
passing over coastal waters at this hour. The front is expected to
stall near the I-10 corridor tonight and wash out on Tuesday. A
stronger cold front is expected to approach the coastal waters
late Friday bringing stronger offshore flow into next weekend.

$$

GMZ430-120315-
Sabine Lake-
924 AM CDT Mon Oct 11 2021

.REST OF TODAY...Southwest winds 5 to 10 knots. Lake waters a
light chop. Chance of showers and thunderstorms late in the
morning.
.TONIGHT...South winds around 5 knots. Lake waters smooth.
.TUESDAY...South winds 5 to 10 knots. Lake waters a light chop.
Slight chance of showers through the day.
.TUESDAY NIGHT...Southeast winds around 10 knots. Lake waters a
light chop.
.WEDNESDAY...South winds around 10 knots. Lake waters a light
chop. Slight chance of showers in the afternoon.
.WEDNESDAY NIGHT...Southeast winds 5 to 10 knots. Lake waters a
light chop.
.THURSDAY...South winds 5 to 10 knots. Lake waters a light chop.
Chance of showers through the day. Slight chance of thunderstorms
in the afternoon.
.THURSDAY NIGHT...South winds 5 to 10 knots. Lake waters a light
chop. Slight chance of showers and thunderstorms after midnight.
.FRIDAY...South winds 5 to 10 knots. Lake waters a light chop.
Chance of showers and slight chance of thunderstorms.
.FRIDAY NIGHT...Southwest winds around 5 knots becoming northwest
after midnight. Lake waters smooth increasing to a light chop
after midnight. Chance of showers and slight chance of
thunderstorms.

$$

GMZ432-120315-
Calcasieu Lake-
924 AM CDT Mon Oct 11 2021

.REST OF TODAY...South winds around 10 knots. Lake waters a light
chop. Chance of showers and slight chance of thunderstorms late
in the morning.
.TONIGHT...South winds 5 to 10 knots. Lake waters a light chop.
Slight chance of showers after midnight.
.TUESDAY...South winds 5 to 10 knots. Lake waters a light chop.
Slight chance of showers through the day.
.TUESDAY NIGHT...Southeast winds around 10 knots. Lake waters a
light chop.
.WEDNESDAY...South winds around 10 knots. Lake waters a light
chop. Slight chance of showers in the afternoon.
.WEDNESDAY NIGHT...Southeast winds around 10 knots. Lake waters a
light chop.
.THURSDAY...South winds 5 to 10 knots. Lake waters a light chop.
Slight chance of showers in the morning. Slight chance of
thunderstorms through the day. Chance of showers in the
afternoon.
.THURSDAY NIGHT...South winds 5 to 10 knots. Lake waters a light
chop. Slight chance of showers and thunderstorms after midnight.
.FRIDAY...South winds 5 to 10 knots. Lake waters a light chop.
Slight chance of showers in the morning. Slight chance of
thunderstorms through the day. Chance of showers in the
afternoon.
.FRIDAY NIGHT...South winds around 5 knots becoming northwest
after midnight. Lake waters smooth increasing to a light chop
after midnight. Slight chance of thunderstorms in the evening.
Chance of showers through the night.

$$

GMZ435-120315-
Vermilion Bay-
924 AM CDT Mon Oct 11 2021

.REST OF TODAY...South winds around 10 knots. Bay waters a light
chop.
.TONIGHT...South winds 5 to 10 knots. Bay waters a light chop.
.TUESDAY...South winds 5 to 10 knots. Bay waters a light chop.
.TUESDAY NIGHT...Southeast winds around 10 knots. Bay waters a
light chop.
.WEDNESDAY...Southeast winds around 10 knots. Bay waters a light
chop.
.WEDNESDAY NIGHT...Southeast winds around 10 knots. Bay waters a
light chop.
.THURSDAY...Southeast winds 5 to 10 knots. Bay waters a light
chop. Slight chance of showers through the day.
.THURSDAY NIGHT...Southeast winds 5 to 10 knots. Bay waters a
light chop.
.FRIDAY...South winds 5 to 10 knots. Bay waters a light chop.
Slight chance of showers in the morning. Slight chance of
thunderstorms through the day. Chance of showers in the
afternoon.
.FRIDAY NIGHT...South winds around 5 knots becoming west after
midnight. Bay waters smooth increasing to a light chop after
midnight. Slight chance of showers in the evening. Slight chance
of thunderstorms through the night. Chance of showers after
midnight.

$$

GMZ450-120315-
Coastal waters from Cameron LA to High Island TX out 20 NM-
924 AM CDT Mon Oct 11 2021

.REST OF TODAY...Southwest winds 10 to 15 knots. Seas 2 to
4 feet. Chance of showers and slight chance of thunderstorms late
in the morning.
.TONIGHT...South winds 5 to 10 knots. Seas 2 to 4 feet.
.TUESDAY...South winds 10 to 15 knots. Seas 2 to 4 feet. Slight
chance of showers through the day.
.TUESDAY NIGHT...Southeast winds 15 to 20 knots. Seas 2 to
4 feet.
.WEDNESDAY...South winds 10 to 15 knots. Seas 3 to 5 feet.
.WEDNESDAY NIGHT...Southeast winds 10 to 15 knots. Seas 2 to
4 feet.
.THURSDAY...South winds 10 to 15 knots. Seas 2 to 4 feet. Slight
chance of showers in the morning, then chance of showers and
slight chance of thunderstorms in the afternoon.
.THURSDAY NIGHT...South winds 10 to 15 knots. Seas 2 to 4 feet.
Slight chance of showers and thunderstorms after midnight.
.FRIDAY...South winds 5 to 10 knots. Seas 1 to 3 feet. Chance of
showers and slight chance of thunderstorms.
.FRIDAY NIGHT...Southwest winds 5 to 10 knots becoming northwest
10 to 15 knots after midnight. Seas 1 to 3 feet. Chance of
showers and slight chance of thunderstorms.

$$

GMZ452-120315-
Coastal waters from Intracoastal City to Cameron LA out 20 NM-
924 AM CDT Mon Oct 11 2021

.REST OF TODAY...South winds 10 to 15 knots. Seas 2 to 4 feet.
Chance of showers late in the morning.
.TONIGHT...South winds 10 to 15 knots. Seas 2 to 4 feet.
.TUESDAY...South winds 10 to 15 knots. Seas 1 to 3 feet.
.TUESDAY NIGHT...Southeast winds 10 to 15 knots. Seas 2 to
4 feet.
.WEDNESDAY...South winds 10 to 15 knots. Seas 2 to 4 feet.
.WEDNESDAY NIGHT...Southeast winds 10 to 15 knots. Seas 2 to
4 feet.
.THURSDAY...Southeast winds 10 to 15 knots. Seas 2 to 4 feet.
Slight chance of showers and thunderstorms through the day.
.THURSDAY NIGHT...South winds 10 to 15 knots. Seas 2 to 4 feet.
.FRIDAY...South winds 5 to 10 knots. Seas 1 to 3 feet. Slight
chance of showers in the morning. Slight chance of thunderstorms
through the day. Chance of showers in the afternoon.
.FRIDAY NIGHT...South winds 5 to 10 knots becoming northwest
10 to 15 knots after midnight. Seas 1 to 3 feet. Slight chance of
showers in the evening. Slight chance of thunderstorms through
the night. Chance of showers after midnight.

$$

GMZ455-120315-
Coastal waters from Lower Atchafalaya River to Intracoastal City
LA out 20 NM-
924 AM CDT Mon Oct 11 2021

.REST OF TODAY...South winds 5 to 10 knots. Seas 1 to 3 feet.
.TONIGHT...South winds 5 to 10 knots. Seas 1 to 2 feet.
.TUESDAY...South winds 5 to 10 knots. Seas 1 to 2 feet.
.TUESDAY NIGHT...Southeast winds 10 to 15 knots. Seas 1 to
2 feet.
.WEDNESDAY...Southeast winds 10 to 15 knots. Seas 1 to 3 feet.
.WEDNESDAY NIGHT...Southeast winds 10 to 15 knots. Seas 1 to
2 feet.
.THURSDAY...Southeast winds 10 to 15 knots. Seas 1 to 3 feet.
Slight chance of showers and thunderstorms in the afternoon.
.THURSDAY NIGHT...Southeast winds 5 to 10 knots. Seas 1 to
2 feet.
.FRIDAY...South winds 5 to 10 knots. Seas 1 to 3 feet. Slight
chance of showers in the morning. Slight chance of thunderstorms
through the day. Chance of showers in the afternoon.
.FRIDAY NIGHT...South winds 5 to 10 knots becoming southwest
after midnight. Seas 1 foot or less. Slight chance of showers in
the evening. Slight chance of thunderstorms through the night.
Chance of showers after midnight.

$$

GMZ470-120315-
Waters from Cameron LA to High Island TX from 20 to 60 NM-
924 AM CDT Mon Oct 11 2021

.REST OF TODAY...Southwest winds 10 to 15 knots. Seas 3 to
5 feet. Chance of showers and slight chance of thunderstorms late
in the morning.
.TONIGHT...South winds 10 to 15 knots. Seas 3 to 5 feet.
.TUESDAY...South winds 10 to 15 knots. Seas 3 to 5 feet.
.TUESDAY NIGHT...Southeast winds 15 to 20 knots. Seas 3 to
5 feet.
.WEDNESDAY...South winds 10 to 15 knots. Seas 3 to 6 feet.
.WEDNESDAY NIGHT...Southeast winds 10 to 15 knots. Seas 3 to
5 feet.
.THURSDAY...South winds 10 to 15 knots. Seas 3 to 6 feet. Slight
chance of showers through the day. Slight chance of thunderstorms
in the afternoon.
.THURSDAY NIGHT...South winds 10 to 15 knots. Seas 3 to 5 feet.
Slight chance of showers and thunderstorms after midnight.
.FRIDAY...South winds around 10 knots. Seas 3 to 5 feet. Slight
chance of showers in the morning. Slight chance of thunderstorms
through the day. Chance of showers in the afternoon.
.FRIDAY NIGHT...South winds around 10 knots becoming northwest
after midnight. Seas 2 to 4 feet. Chance of showers and slight
chance of thunderstorms.

$$

GMZ472-120315-
Waters from Intracoastal City to Cameron LA from 20 to 60 NM-
924 AM CDT Mon Oct 11 2021

.REST OF TODAY...South winds 10 to 15 knots. Seas 3 to 5 feet.
Chance of showers late in the morning.
.TONIGHT...South winds 10 to 15 knots. Seas 3 to 5 feet.
.TUESDAY...South winds 10 to 15 knots. Seas 3 to 5 feet.
.TUESDAY NIGHT...Southeast winds 10 to 15 knots. Seas 3 to
5 feet.
.WEDNESDAY...South winds 10 to 15 knots. Seas 3 to 5 feet.
.WEDNESDAY NIGHT...Southeast winds 10 to 15 knots. Seas 3 to
5 feet.
.THURSDAY...Southeast winds 10 to 15 knots. Seas 3 to 5 feet.
Slight chance of showers and thunderstorms.
.THURSDAY NIGHT...Southeast winds 10 to 15 knots. Seas 3 to
5 feet.
.FRIDAY...South winds 5 to 10 knots. Seas 3 to 5 feet. Slight
chance of showers in the morning. Slight chance of thunderstorms
through the day. Chance of showers in the afternoon.
.FRIDAY NIGHT...South winds 5 to 10 knots becoming west 10 to
15 knots after midnight. Seas 2 to 4 feet. Slight chance of
showers in the evening. Slight chance of thunderstorms through
the night. Chance of showers after midnight.

$$

GMZ475-120315-
Waters from Lower Atchafalaya River to Intracoastal City LA from
20 to 60 NM-
924 AM CDT Mon Oct 11 2021

.REST OF TODAY...South winds 5 to 10 knots. Seas 2 to 4 feet.
.TONIGHT...South winds around 10 knots. Seas 2 to 4 feet.
.TUESDAY...Southeast winds around 10 knots. Seas 2 to 4 feet.
.TUESDAY NIGHT...Southeast winds 10 to 15 knots. Seas 2 to
4 feet.
.WEDNESDAY...Southeast winds 10 to 15 knots. Seas 2 to 4 feet.
.WEDNESDAY NIGHT...Southeast winds 10 to 15 knots. Seas 2 to
4 feet.
.THURSDAY...Southeast winds 10 to 15 knots. Seas 3 to 5 feet.
Slight chance of showers in the afternoon.
.THURSDAY NIGHT...Southeast winds around 10 knots. Seas 2 to
4 feet.
.FRIDAY...Southeast winds 5 to 10 knots. Seas 3 to 5 feet. Slight
chance of showers and thunderstorms in the afternoon.
.FRIDAY NIGHT...South winds 5 to 10 knots. Seas 2 to 4 feet.
Slight chance of showers in the evening. Slight chance of
thunderstorms through the night. Chance of showers after
midnight.

$$

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