Coastal Waters Forecast
Issued by NWS Lake Charles, LA

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FZUS54 KLCH 300240
CWFLCH

Coastal Waters Forecast
National Weather Service Lake Charles LA
940 PM CDT Thu Jul 29 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.

GMZ400-300930-
Synopsis for Lower Atchafalaya River LA to High Island TX out
60 NM including Sabine and Calcasieu Lakes and Vermilion Bay
940 PM CDT Thu Jul 29 2021

.SYNOPSIS...
Light onshore flow is expected through the period. Expect daily
chances for shower and thunderstorm activity. Locally higher
winds and seas, along with cloud to water lightning can be
expected near the storms.

$$

GMZ430-300930-
Sabine Lake-
940 PM CDT Thu Jul 29 2021

.REST OF TONIGHT...Southwest winds up to 5 knots. Lake waters
smooth.
.FRIDAY...West winds up to 5 knots becoming south in the
afternoon. Lake waters smooth. Slight chance of showers and
thunderstorms in the morning, then chance of showers and
thunderstorms in the afternoon.
.FRIDAY NIGHT...Southwest winds 5 to 10 knots. Lake waters a
light chop.
.SATURDAY...West winds around 5 knots becoming southwest in the
afternoon. Lake waters smooth. Chance of showers and
thunderstorms in the afternoon.
.SATURDAY NIGHT...Southwest winds 5 to 10 knots. Lake waters a
light chop.
.SUNDAY...Southwest winds 5 to 10 knots. Lake waters a light
chop. Slight chance of showers and thunderstorms in the morning,
then chance of showers and thunderstorms in the afternoon.
.SUNDAY NIGHT...Southwest winds 5 to 10 knots. Lake waters a
light chop. Slight chance of showers and thunderstorms in the
evening, then chance of showers and thunderstorms after midnight.
.MONDAY...Southwest winds 5 to 10 knots. Lake waters a light
chop. Chance of showers and thunderstorms in the morning, then
showers and thunderstorms likely in the afternoon.
.MONDAY NIGHT...Southwest winds 5 to 10 knots. Lake waters a
light chop. Chance of showers and thunderstorms in the evening,
then showers and thunderstorms likely after midnight.
.TUESDAY...West winds around 5 knots. Lake waters smooth. Showers
and thunderstorms likely in the morning, then showers and
thunderstorms in the afternoon.
.TUESDAY NIGHT...South winds up to 5 knots. Lake waters smooth.
Chance of showers and thunderstorms.

$$

GMZ432-300930-
Calcasieu Lake-
940 PM CDT Thu Jul 29 2021

.REST OF TONIGHT...Southwest winds up to 5 knots. Lake waters
smooth.
.FRIDAY...Northwest winds up to 5 knots becoming south in the
afternoon. Lake waters smooth increasing to a light chop in the
afternoon. Slight chance of showers and thunderstorms in the
morning, then chance of showers and thunderstorms in the
afternoon.
.FRIDAY NIGHT...Southwest winds 5 to 10 knots. Lake waters a
light chop.
.SATURDAY...West winds around 5 knots becoming southwest in the
afternoon. Lake waters smooth increasing to a light chop in the
afternoon. Slight chance of showers and thunderstorms in the
morning, then chance of showers and thunderstorms in the
afternoon.
.SATURDAY NIGHT...Southwest winds 5 to 10 knots. Lake waters a
light chop.
.SUNDAY...Southwest winds 5 to 10 knots. Lake waters a light
chop. Slight chance of showers and thunderstorms in the morning,
then chance of showers and thunderstorms in the afternoon.
.SUNDAY NIGHT...Southwest winds 5 to 10 knots. Lake waters a
light chop. Slight chance of showers and thunderstorms in the
evening, then chance of showers and thunderstorms after midnight.
.MONDAY...Southwest winds 5 to 10 knots. Lake waters a light
chop. Chance of showers and thunderstorms in the morning, then
showers and thunderstorms likely in the afternoon.
.MONDAY NIGHT...Southwest winds 5 to 10 knots. Lake waters a
light chop. Chance of showers and thunderstorms in the evening,
then showers and thunderstorms likely after midnight.
.TUESDAY...West winds 5 to 10 knots. Lake waters a light chop.
Showers and thunderstorms.
.TUESDAY NIGHT...West winds up to 5 knots. Lake waters smooth.
Chance of showers and thunderstorms.

$$

GMZ435-300930-
Vermilion Bay-
940 PM CDT Thu Jul 29 2021

.REST OF TONIGHT...Southwest winds up to 5 knots. Bay waters
smooth.
.FRIDAY...Northwest winds up to 5 knots becoming west in the
afternoon. Bay waters smooth increasing to a light chop in the
afternoon. Slight chance of showers and thunderstorms.
.FRIDAY NIGHT...West winds 5 to 10 knots. Bay waters a light
chop.
.SATURDAY...West winds 5 to 10 knots. Bay waters a light chop.
Slight chance of showers and thunderstorms in the morning, then
chance of showers and thunderstorms in the afternoon.
.SATURDAY NIGHT...West winds 5 to 10 knots. Bay waters a light
chop. Slight chance of showers and thunderstorms after midnight.
.SUNDAY...West winds 5 to 10 knots. Bay waters a light chop.
Chance of showers and thunderstorms.
.SUNDAY NIGHT...Southwest winds 5 to 10 knots. Bay waters a light
chop. Slight chance of showers and thunderstorms in the evening,
then chance of showers and thunderstorms after midnight.
.MONDAY...West winds 5 to 10 knots. Bay waters a light chop.
Showers and thunderstorms likely.
.MONDAY NIGHT...Southwest winds 5 to 10 knots. Bay waters a light
chop. Chance of showers and thunderstorms in the evening, then
showers and thunderstorms likely after midnight.
.TUESDAY...West winds 5 to 10 knots. Bay waters a light chop.
Showers and thunderstorms.
.TUESDAY NIGHT...West winds up to 5 knots. Bay waters smooth.
Chance of showers and thunderstorms in the evening, then showers
and thunderstorms likely after midnight.

$$

GMZ450-300930-
Coastal waters from Cameron LA to High Island TX out 20 NM-
940 PM CDT Thu Jul 29 2021

.REST OF TONIGHT...South winds 5 to 10 knots. Seas 1 foot or
less. Slight chance of showers and thunderstorms after midnight.
.FRIDAY...Southwest winds 5 to 10 knots. Seas 1 foot or less.
Chance of showers and thunderstorms in the morning, then slight
chance of showers and thunderstorms in the afternoon.
.FRIDAY NIGHT...Southwest winds 5 to 10 knots. Seas 1 to 2 feet.
.SATURDAY...Southwest winds 5 to 10 knots. Seas 1 foot or less.
Slight chance of showers and thunderstorms in the morning, then
chance of showers and thunderstorms in the afternoon.
.SATURDAY NIGHT...Southwest winds 5 to 10 knots. Seas 1 to
2 feet.
.SUNDAY...Southwest winds 5 to 10 knots. Seas 1 to 2 feet. Slight
chance of showers and thunderstorms in the morning, then chance
of showers and thunderstorms in the afternoon.
.SUNDAY NIGHT...Southwest winds around 10 knots. Seas 1 to
2 feet. Slight chance of showers and thunderstorms after
midnight.
.MONDAY...Southwest winds around 10 knots. Seas 1 to 3 feet.
Chance of showers and thunderstorms.
.MONDAY NIGHT...Southwest winds 5 to 10 knots. Seas 1 to 3 feet.
Chance of showers and thunderstorms.
.TUESDAY...Southwest winds 5 to 10 knots. Seas 1 to 3 feet.
Showers and thunderstorms likely.
.TUESDAY NIGHT...Southwest winds 5 to 10 knots. Seas 1 to 3 feet.
Chance of showers and thunderstorms.

$$

GMZ452-300930-
Coastal waters from Intracoastal City to Cameron LA out 20 NM-
940 PM CDT Thu Jul 29 2021

.REST OF TONIGHT...South winds around 5 knots. Seas 1 foot or
less.
.FRIDAY...West winds 5 to 10 knots. Seas 1 foot or less. Chance
of showers and thunderstorms in the morning, then slight chance
of showers and thunderstorms in the afternoon.
.FRIDAY NIGHT...West winds 5 to 10 knots. Seas 1 to 2 feet.
.SATURDAY...West winds 5 to 10 knots. Seas 1 foot or less. Slight
chance of showers and thunderstorms in the morning, then chance
of showers and thunderstorms in the afternoon.
.SATURDAY NIGHT...Southwest winds 5 to 10 knots. Seas 1 to
2 feet. Slight chance of showers and thunderstorms after
midnight.
.SUNDAY...West winds 5 to 10 knots. Seas 1 to 2 feet. Chance of
showers and thunderstorms.
.SUNDAY NIGHT...Southwest winds 5 to 10 knots. Seas 1 to 2 feet.
Chance of showers and thunderstorms after midnight.
.MONDAY...West winds around 10 knots. Seas 1 to 3 feet. Showers
and thunderstorms likely.
.MONDAY NIGHT...Southwest winds 5 to 10 knots. Seas 1 to 3 feet.
Chance of showers and thunderstorms in the evening, then showers
and thunderstorms likely after midnight.
.TUESDAY...West winds 5 to 10 knots. Seas 1 to 3 feet. Showers
and thunderstorms in the morning, then showers and thunderstorms
likely in the afternoon.
.TUESDAY NIGHT...Southwest winds 5 to 10 knots. Seas 1 to 3 feet.
Chance of showers and thunderstorms in the evening, then showers
and thunderstorms likely after midnight.

$$

GMZ455-300930-
Coastal waters from Lower Atchafalaya River to Intracoastal City
LA out 20 NM-
940 PM CDT Thu Jul 29 2021

.REST OF TONIGHT...Southwest winds up to 5 knots. Seas 1 foot or
less.
.FRIDAY...West winds 5 to 10 knots. Seas 1 foot or less. Slight
chance of showers and thunderstorms through the day.
.FRIDAY NIGHT...West winds 5 to 10 knots. Seas 1 foot or less.
.SATURDAY...West winds 5 to 10 knots. Seas 1 foot or less. Chance
of showers and thunderstorms.
.SATURDAY NIGHT...West winds 5 to 10 knots. Seas 1 foot or less.
Slight chance of showers and thunderstorms after midnight.
.SUNDAY...West winds 5 to 10 knots. Seas 1 foot or less. Chance
of showers and thunderstorms.
.SUNDAY NIGHT...Southwest winds 5 to 10 knots. Seas 1 foot or
less. Chance of showers and thunderstorms after midnight.
.MONDAY...West winds 5 to 10 knots. Seas 1 to 2 feet. Showers and
thunderstorms likely.
.MONDAY NIGHT...Southwest winds 5 to 10 knots. Seas 1 to 2 feet.
Chance of showers and thunderstorms in the evening, then showers
and thunderstorms likely after midnight.
.TUESDAY...West winds 5 to 10 knots. Seas 1 to 3 feet. Showers
and thunderstorms in the morning, then showers and thunderstorms
likely in the afternoon.
.TUESDAY NIGHT...Southwest winds 5 to 10 knots. Seas 1 to 2 feet.
Chance of showers and thunderstorms in the evening, then showers
and thunderstorms likely after midnight.

$$

GMZ470-300930-
Waters from Cameron LA to High Island TX from 20 to 60 NM-
940 PM CDT Thu Jul 29 2021

.REST OF TONIGHT...South winds 5 to 10 knots. Seas 1 to 2 feet.
Slight chance of showers and thunderstorms after midnight.
.FRIDAY...Southwest winds around 5 knots. Seas 1 to 2 feet.
Chance of showers and thunderstorms in the morning, then slight
chance of showers and thunderstorms in the afternoon.
.FRIDAY NIGHT...Southwest winds 5 to 10 knots. Seas 1 to 2 feet.
.SATURDAY...Southwest winds 5 to 10 knots. Seas 1 to 2 feet.
Slight chance of showers and thunderstorms through the day.
.SATURDAY NIGHT...Southwest winds 5 to 10 knots. Seas 1 to
2 feet.
.SUNDAY...Southwest winds 5 to 10 knots. Seas 1 to 3 feet. Slight
chance of showers and thunderstorms through the day.
.SUNDAY NIGHT...Southwest winds around 10 knots. Seas 1 to
3 feet. Slight chance of showers and thunderstorms after
midnight.
.MONDAY...Southwest winds 5 to 10 knots. Seas 2 to 4 feet. Chance
of showers and thunderstorms.
.MONDAY NIGHT...Southwest winds around 10 knots. Seas 2 to
4 feet. Slight chance of showers and thunderstorms in the
evening, then chance of showers and thunderstorms after midnight.
.TUESDAY...Southwest winds around 10 knots. Seas 2 to 4 feet.
Showers and thunderstorms likely in the morning, then chance of
showers and thunderstorms in the afternoon.
.TUESDAY NIGHT...Southwest winds around 10 knots. Seas 2 to
4 feet. Slight chance of showers and thunderstorms in the
evening, then chance of showers and thunderstorms after midnight.

$$

GMZ472-300930-
Waters from Intracoastal City to Cameron LA from 20 to 60 NM-
940 PM CDT Thu Jul 29 2021

.REST OF TONIGHT...South winds 5 to 10 knots. Seas 1 to 2 feet.
.FRIDAY...West winds up to 5 knots. Seas 1 to 2 feet. Slight
chance of showers and thunderstorms through the day.
.FRIDAY NIGHT...Southwest winds 5 to 10 knots. Seas 1 to 2 feet.
.SATURDAY...West winds 5 to 10 knots. Seas 1 to 2 feet. Slight
chance of showers and thunderstorms through the day.
.SATURDAY NIGHT...Southwest winds 5 to 10 knots. Seas 1 to
2 feet. Slight chance of showers and thunderstorms after
midnight.
.SUNDAY...West winds 5 to 10 knots. Seas 1 to 2 feet. Chance of
showers and thunderstorms in the morning, then slight chance of
showers and thunderstorms in the afternoon.
.SUNDAY NIGHT...Southwest winds 5 to 10 knots. Seas 1 to 2 feet.
Slight chance of showers and thunderstorms after midnight.
.MONDAY...Southwest winds around 10 knots. Seas 2 to 4 feet.
Chance of showers and thunderstorms.
.MONDAY NIGHT...Southwest winds around 10 knots. Seas 2 to
4 feet. Slight chance of showers and thunderstorms in the
evening, then chance of showers and thunderstorms after midnight.
.TUESDAY...West winds around 10 knots. Seas 3 to 5 feet. Showers
and thunderstorms likely in the morning, then chance of showers
and thunderstorms in the afternoon.
.TUESDAY NIGHT...Southwest winds around 10 knots. Seas 2 to
4 feet. Chance of showers and thunderstorms.

$$

GMZ475-300930-
Waters from Lower Atchafalaya River to Intracoastal City LA from
20 to 60 NM-
940 PM CDT Thu Jul 29 2021

.REST OF TONIGHT...Southwest winds around 5 knots. Seas 1 to
2 feet.
.FRIDAY...West winds around 5 knots. Seas 1 to 2 feet. Slight
chance of showers and thunderstorms.
.FRIDAY NIGHT...West winds 5 to 10 knots. Seas 1 to 2 feet.
.SATURDAY...West winds 5 to 10 knots. Seas 1 to 2 feet. Slight
chance of showers and thunderstorms through the day.
.SATURDAY NIGHT...Southwest winds 5 to 10 knots. Seas 1 to
2 feet. Slight chance of showers and thunderstorms after
midnight.
.SUNDAY...West winds 5 to 10 knots. Seas 1 to 2 feet. Chance of
showers and thunderstorms in the morning, then slight chance of
showers and thunderstorms in the afternoon.
.SUNDAY NIGHT...Southwest winds 5 to 10 knots. Seas 1 to 2 feet.
Chance of showers and thunderstorms after midnight.
.MONDAY...Southwest winds around 10 knots. Seas 2 to 4 feet.
Chance of showers and thunderstorms.
.MONDAY NIGHT...Southwest winds 10 to 15 knots. Seas 2 to 4 feet.
Slight chance of showers and thunderstorms in the evening, then
chance of showers and thunderstorms after midnight.
.TUESDAY...Southwest winds around 10 knots. Seas 3 to 5 feet.
Showers and thunderstorms likely in the morning, then chance of
showers and thunderstorms in the afternoon.
.TUESDAY NIGHT...Southwest winds around 10 knots. Seas 2 to
4 feet. Chance of showers and thunderstorms.

$$

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