Coastal Waters Forecast
Issued by NWS Lake Charles, LA

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Coastal Waters Forecast...UPDATED
National Weather Service Lake Charles LA
917 PM CDT Sun Jun 30 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.

GMZ400-011515-
917 PM CDT Sun Jun 30 2024

.SYNOPSIS...

Weak high pressure at the surface will ridge across the northern
Gulf of Mexico for the next several days. This will allow for
mainly light onshore flow and low seas. Through the next several
days, scattered to numerous showers and thunderstorms can be
expected each day. Elevated winds and seas will be possible in
the vicinity of the thunderstorms.

$$

GMZ430-011515-
Sabine Lake-
917 PM CDT Sun Jun 30 2024

.REST OF TONIGHT...Southwest winds around 5 knots, becoming west
late. Lake waters smooth.
.MONDAY...Northwest winds around 5 knots. Lake waters smooth. A
chance of showers and thunderstorms in the afternoon.
.MONDAY NIGHT...West winds around 5 knots. Lake waters smooth. A
chance of showers and thunderstorms in the evening.
.TUESDAY...Northwest winds around 5 knots, becoming south in the
afternoon. Lake waters smooth. A slight chance of showers and
thunderstorms.
.TUESDAY NIGHT...South winds 5 to 10 knots. Lake waters light
chop.
.WEDNESDAY...South winds around 5 knots, increasing to 5 to
10 knots in the afternoon. Lake waters light chop. A chance of
showers and thunderstorms.
.WEDNESDAY NIGHT...South winds 5 to 10 knots. Lake waters light
chop.
.THURSDAY...South winds 5 to 10 knots. Lake waters light chop. A
slight chance of showers and thunderstorms.
.THURSDAY NIGHT...South winds 5 to 10 knots. Lake waters light
chop.
.FRIDAY...South winds 5 to 10 knots. Lake waters light chop. A
slight chance of showers and thunderstorms in the afternoon.
.FRIDAY NIGHT...South winds 5 to 10 knots. Lake waters light
chop.

Winds and waves higher in and near thunderstorms.

$$

GMZ432-011515-
Calcasieu Lake-
917 PM CDT Sun Jun 30 2024

.REST OF TONIGHT...Southwest winds around 5 knots, becoming west
late. Lake waters smooth.
.MONDAY...Northwest winds around 5 knots. Lake waters smooth. A
slight chance of showers and thunderstorms in the morning, then
showers likely with a chance of thunderstorms in the afternoon.
.MONDAY NIGHT...West winds around 5 knots. Lake waters smooth. A
chance of thunderstorms with a slight chance of showers in the
evening.
.TUESDAY...North winds around 5 knots, becoming southeast in the
afternoon. Lake waters light chop. A slight chance of showers and
thunderstorms in the morning, then a chance of showers and
thunderstorms in the afternoon.
.TUESDAY NIGHT...South winds 5 to 10 knots. Lake waters light
chop.
.WEDNESDAY...South winds around 5 knots, increasing to around
10 knots in the afternoon. Lake waters light chop. A chance of
showers and thunderstorms.
.WEDNESDAY NIGHT...South winds 5 to 10 knots. Lake waters light
chop.
.THURSDAY...South winds 5 to 10 knots. Lake waters light chop. A
slight chance of showers and thunderstorms.
.THURSDAY NIGHT...South winds 5 to 10 knots. Lake waters light
chop.
.FRIDAY...South winds 5 to 10 knots. Lake waters light chop. A
slight chance of showers and thunderstorms in the afternoon.
.FRIDAY NIGHT...South winds 5 to 10 knots. Lake waters light
chop.

Winds and waves higher in and near thunderstorms.

$$

GMZ435-011515-
Vermilion and West Cote Blanche Bays-
917 PM CDT Sun Jun 30 2024

.REST OF TONIGHT...West winds around 5 knots. Bay waters smooth.
A slight chance of showers and thunderstorms late.
.MONDAY...Northwest winds 5 to 10 knots. Bay waters light chop. A
slight chance of showers and thunderstorms in the morning, then
showers and thunderstorms likely in the afternoon.
.MONDAY NIGHT...Northwest winds around 5 knots. Bay waters
smooth. Thunderstorms likely with a chance of showers in the
evening, then a slight chance of showers and thunderstorms after
midnight.
.TUESDAY...Northeast winds around 5 knots, becoming south around
5 knots in the afternoon. Bay waters smooth. A chance of showers
and thunderstorms in the morning, then showers and thunderstorms
likely in the afternoon.
.TUESDAY NIGHT...South winds around 5 knots. Bay waters smooth. A
chance of showers and thunderstorms after midnight.
.WEDNESDAY...South winds 5 to 10 knots. Bay waters light chop. A
chance of showers and thunderstorms in the morning, then showers
and thunderstorms likely in the afternoon.
.WEDNESDAY NIGHT...South winds 5 to 10 knots. Bay waters light
chop. A slight chance of showers and thunderstorms after
midnight.
.THURSDAY...South winds 5 to 10 knots. Bay waters light chop. A
chance of showers and thunderstorms.
.THURSDAY NIGHT...South winds 5 to 10 knots. Bay waters light
chop.
.FRIDAY...Southwest winds 5 to 10 knots. Bay waters light chop. A
chance of showers and thunderstorms in the afternoon.
.FRIDAY NIGHT...South winds 5 to 10 knots. Bay waters light chop.

Winds and waves higher in and near thunderstorms.

$$

GMZ436-011515-
Atchafalaya and East Cote Blanche Bays-
917 PM CDT Sun Jun 30 2024

.REST OF TONIGHT...West winds around 5 knots. Bay waters smooth.
A slight chance of showers and thunderstorms late.
.MONDAY...Northwest winds 5 to 10 knots. Bay waters light chop. A
slight chance of showers and thunderstorms in the morning, then
showers with thunderstorms likely in the afternoon.
.MONDAY NIGHT...Northwest winds around 5 knots. Bay waters
smooth. Showers and thunderstorms likely in the evening, then a
chance of showers with a slight chance of thunderstorms after
midnight.
.TUESDAY...Northeast winds around 5 knots, becoming south in the
afternoon. Bay waters smooth. Showers likely with a chance of
thunderstorms in the morning, then showers and thunderstorms
likely in the afternoon.
.TUESDAY NIGHT...South winds around 5 knots. Bay waters smooth. A
chance of showers and thunderstorms after midnight.
.WEDNESDAY...South winds 5 to 10 knots. Bay waters light chop. A
chance of showers and thunderstorms in the morning, then showers
and thunderstorms likely in the afternoon.
.WEDNESDAY NIGHT...South winds around 5 knots. Bay waters smooth.
A slight chance of showers and thunderstorms after midnight.
.THURSDAY...Southwest winds around 5 knots. Bay waters smooth. A
chance of showers and thunderstorms.
.THURSDAY NIGHT...South winds around 5 knots. Bay waters smooth.
.FRIDAY...South winds around 5 knots. Bay waters smooth. A chance
of showers and thunderstorms in the afternoon.
.FRIDAY NIGHT...South winds around 5 knots. Bay waters smooth. A
slight chance of showers and thunderstorms after midnight.

Winds and waves higher in and near thunderstorms.

$$

GMZ450-011515-
Coastal waters from Cameron LA to High Island TX out 20 NM-
917 PM CDT Sun Jun 30 2024

.REST OF TONIGHT...South winds 5 to 10 knots, becoming southwest
late. Seas around 2 feet. Wave Detail: South 2 feet at 8 seconds.
.MONDAY...Northwest winds 5 to 10 knots, becoming west in the
afternoon. Seas around 2 feet. Wave Detail: South 2 feet at
8 seconds and northwest 1 foot at 3 seconds. A slight chance of
showers and thunderstorms in the morning, then a chance of
showers and thunderstorms in the afternoon.
.MONDAY NIGHT...West winds 5 to 10 knots. Seas around 2 feet.
Wave Detail: Southwest 1 foot at 2 seconds and south 1 foot at
7 seconds. A chance of showers and thunderstorms, mainly in the
evening.
.TUESDAY...Northwest winds 5 to 10 knots, becoming south in the
afternoon. Seas around 2 feet. Wave Detail: West 1 foot at
3 seconds and southeast 1 foot at 6 seconds. A slight chance of
showers and thunderstorms.
.TUESDAY NIGHT...South winds around 10 knots. Seas around 2 feet.
Wave Detail: South 2 feet at 5 seconds. A slight chance of
showers and thunderstorms after midnight.
.WEDNESDAY...South winds around 10 knots. Seas around 2 feet.
Wave Detail: South 2 feet at 5 seconds. A chance of showers and
thunderstorms, mainly in the morning.
.WEDNESDAY NIGHT...South winds around 10 knots. Seas around
2 feet.
.THURSDAY...South winds around 10 knots. Seas around 2 feet. A
slight chance of showers and thunderstorms in the morning.
.THURSDAY NIGHT...South winds 10 to 15 knots. Seas around 2 feet.
.FRIDAY...South winds around 10 knots. Seas around 2 feet. A
slight chance of showers and thunderstorms in the afternoon.
.FRIDAY NIGHT...South winds around 10 knots. Seas around 2 feet.

Winds and seas higher in and near thunderstorms.

$$

GMZ452-011515-
Coastal waters from Intracoastal City to Cameron LA out 20 NM-
917 PM CDT Sun Jun 30 2024

.REST OF TONIGHT...Southwest winds 5 to 10 knots, becoming west
late. Seas around 2 feet. Wave Detail: South 2 feet at 8 seconds.
A slight chance of showers and thunderstorms late.
.MONDAY...West winds 5 to 10 knots. Seas around 2 feet. Wave
Detail: South 2 feet at 7 seconds and west 1 foot at 3 seconds. A
slight chance of showers and thunderstorms in the morning, then a
chance of showers and thunderstorms in the afternoon.
.MONDAY NIGHT...Northwest winds 5 to 10 knots. Seas around
2 feet. Wave Detail: West 1 foot at 3 seconds and south 1 foot at
7 seconds. A chance of showers and thunderstorms.
.TUESDAY...North winds 5 to 10 knots, becoming south in the
afternoon. Seas around 2 feet. Wave Detail: West 1 foot at
3 seconds and south 1 foot at 6 seconds. A chance of showers and
thunderstorms.
.TUESDAY NIGHT...South winds 5 to 10 knots. Seas around 2 feet.
Wave Detail: South 2 feet at 5 seconds. A chance of showers and
thunderstorms after midnight.
.WEDNESDAY...South winds 5 to 10 knots. Seas around 2 feet. Wave
Detail: South 2 feet at 4 seconds. A chance of showers and
thunderstorms.
.WEDNESDAY NIGHT...South winds around 10 knots. Seas around
2 feet. A slight chance of showers and thunderstorms after
midnight.
.THURSDAY...South winds 5 to 10 knots. Seas around 2 feet. A
slight chance of showers and thunderstorms.
.THURSDAY NIGHT...South winds around 10 knots. Seas around
2 feet.
.FRIDAY...South winds 5 to 10 knots. Seas around 2 feet in the
morning, then 1 foot or less. A slight chance of showers and
thunderstorms.
.FRIDAY NIGHT...South winds around 10 knots. Seas around 2 feet.

Winds and seas higher in and near thunderstorms.

$$

GMZ455-011515-
Coastal waters from Lower Atchafalaya River to Intracoastal City
LA out 20 NM-
917 PM CDT Sun Jun 30 2024

.REST OF TONIGHT...Southwest winds 5 to 10 knots. Seas 1 to
2 feet. Wave Detail: West 1 foot at 2 seconds and south 1 foot at
8 seconds. A slight chance of showers and thunderstorms late.
.MONDAY...Northwest winds 5 to 10 knots. Seas 1 to 2 feet. Wave
Detail: Northwest 1 foot at 3 seconds and south 1 foot at
7 seconds. A chance of thunderstorms. A chance of showers in the
morning, then showers likely in the afternoon.
.MONDAY NIGHT...Northwest winds 5 to 10 knots. Seas 1 foot or
less. Wave Detail: West 1 foot at 3 seconds. A chance of showers
and thunderstorms.
.TUESDAY...Northeast winds around 5 knots, becoming southeast in
the afternoon. Seas 1 foot or less. Wave Detail: Northwest 1 foot
at 3 seconds and southeast 1 foot at 4 seconds. A chance of
thunderstorms. Showers likely, mainly in the morning.
.TUESDAY NIGHT...South winds 5 to 10 knots. Seas 1 foot or less.
Wave Detail: Southeast 1 foot at 3 seconds. A slight chance of
showers and thunderstorms in the evening, then showers likely
with a chance of thunderstorms after midnight.
.WEDNESDAY...South winds 5 to 10 knots. Seas 1 foot or less. Wave
Detail: South 1 foot at 3 seconds. A chance of showers and
thunderstorms.
.WEDNESDAY NIGHT...South winds around 5 knots. Seas 1 foot or
less. A slight chance of showers and thunderstorms after
midnight.
.THURSDAY...South winds around 5 knots. Seas 1 foot or less. A
slight chance of showers and thunderstorms.
.THURSDAY NIGHT...South winds around 5 knots. Seas 1 foot or
less. A slight chance of showers and thunderstorms after
midnight.
.FRIDAY...South winds around 5 knots. Seas 1 foot or less. A
slight chance of showers and thunderstorms in the morning, then a
chance of showers and thunderstorms in the afternoon.
.FRIDAY NIGHT...South winds 5 to 10 knots. Seas 1 foot or less. A
slight chance of showers and thunderstorms after midnight.

Winds and seas higher in and near thunderstorms.

$$

GMZ470-011515-
Coastal waters from Cameron LA to High Island TX from 20 to 60 NM-
917 PM CDT Sun Jun 30 2024

.REST OF TONIGHT...South winds around 10 knots, becoming
southwest. Seas 2 to 4 feet. Wave Detail: Southeast 3 feet at
8 seconds.
.MONDAY...West winds 5 to 10 knots. Seas 2 to 3 feet. Wave
Detail: Southeast 3 feet at 8 seconds and northwest 1 foot at
2 seconds. A chance of showers with a slight chance of
thunderstorms.
.MONDAY NIGHT...West winds 5 to 10 knots. Seas 2 to 3 feet. Wave
Detail: Southeast 2 feet at 7 seconds and west 1 foot at
2 seconds. A slight chance of showers and thunderstorms.
.TUESDAY...Northwest winds 5 to 10 knots, becoming southeast in
the afternoon. Seas around 2 feet. Wave Detail: Southeast 2 feet
at 6 seconds and west 1 foot at 3 seconds. A chance of showers
and thunderstorms in the morning.
.TUESDAY NIGHT...South winds 5 to 10 knots. Seas around 2 feet.
Wave Detail: South 2 feet at 5 seconds. A slight chance of
showers and thunderstorms after midnight.
.WEDNESDAY...South winds around 10 knots. Seas around 2 feet.
Wave Detail: South 2 feet at 5 seconds. A chance of showers and
thunderstorms, mainly in the morning.
.WEDNESDAY NIGHT...South winds around 10 knots. Seas around
2 feet.
.THURSDAY...South winds around 10 knots. Seas around 2 feet. A
slight chance of showers and thunderstorms.
.THURSDAY NIGHT...South winds around 10 knots. Seas around
2 feet.
.FRIDAY...South winds 5 to 10 knots. Seas around 2 feet. A slight
chance of showers and thunderstorms in the morning.
.FRIDAY NIGHT...South winds around 10 knots. Seas around 2 feet.

Winds and seas higher in and near thunderstorms.

$$

GMZ472-011515-
Coastal waters from Intracoastal City to Cameron LA from 20 to
60 NM-
917 PM CDT Sun Jun 30 2024

.REST OF TONIGHT...South winds 5 to 10 knots, becoming west late.
Seas 3 to 4 feet. Wave Detail: Southeast 4 feet at 8 seconds.
.MONDAY...Northwest winds 5 to 10 knots. Seas 2 to 3 feet. Wave
Detail: Southeast 3 feet at 7 seconds and northwest 1 foot at
3 seconds. A chance of showers and thunderstorms.
.MONDAY NIGHT...West winds 5 to 10 knots. Seas 2 to 3 feet. Wave
Detail: Southeast 2 feet at 7 seconds and northwest 1 foot at
3 seconds. A chance of showers and thunderstorms.
.TUESDAY...Northwest winds 5 to 10 knots, becoming southeast in
the afternoon. Seas around 2 feet. Wave Detail: Southeast 2 feet
at 6 seconds and northwest 1 foot at 3 seconds. Showers likely
with a chance of thunderstorms in the morning, then a slight
chance of showers and thunderstorms in the afternoon.
.TUESDAY NIGHT...South winds 5 to 10 knots. Seas around 2 feet.
Wave Detail: Southeast 2 feet at 5 seconds. A chance of showers
and thunderstorms after midnight.
.WEDNESDAY...South winds around 10 knots. Seas around 2 feet.
Wave Detail: South 2 feet at 5 seconds. A chance of showers and
thunderstorms, mainly in the morning.
.WEDNESDAY NIGHT...South winds around 10 knots. Seas around
2 feet.
.THURSDAY...South winds 5 to 10 knots. Seas around 2 feet. A
slight chance of showers and thunderstorms.
.THURSDAY NIGHT...South winds 5 to 10 knots. Seas around 2 feet.
.FRIDAY...South winds 5 to 10 knots. Seas around 2 feet in the
morning, then 1 foot or less. A slight chance of thunderstorms. A
chance of showers, mainly in the morning.
.FRIDAY NIGHT...South winds 5 to 10 knots. Seas around 2 feet. A
slight chance of showers and thunderstorms after midnight.

Winds and seas higher in and near thunderstorms.

$$

GMZ475-011515-
Coastal waters from Lower Atchafalaya River to Intracoastal City
LA from 20 to 60 NM-
917 PM CDT Sun Jun 30 2024

.REST OF TONIGHT...South winds around 5 knots, becoming west
late. Seas 2 to 4 feet. Wave Detail: Southeast 4 feet at
8 seconds. A slight chance of showers and thunderstorms late.
.MONDAY...Northwest winds 5 to 10 knots. Seas 2 to 3 feet. Wave
Detail: Southeast 3 feet at 7 seconds and northwest 1 foot at
3 seconds. A chance of showers and thunderstorms.
.MONDAY NIGHT...Northwest winds 5 to 10 knots. Seas around
2 feet. Wave Detail: Southeast 2 feet at 6 seconds and northwest
1 foot at 3 seconds. A chance of thunderstorms. Showers likely,
mainly in the evening.
.TUESDAY...North winds around 5 knots, becoming southeast in the
afternoon. Seas around 2 feet. Wave Detail: Southeast 2 feet at
6 seconds and northwest 1 foot at 3 seconds. A chance of
thunderstorms. Showers likely, mainly in the morning.
.TUESDAY NIGHT...South winds 5 to 10 knots. Seas around 2 feet.
Wave Detail: Southeast 2 feet at 5 seconds. Showers likely with a
chance of thunderstorms after midnight.
.WEDNESDAY...South winds 5 to 10 knots. Seas around 2 feet. Wave
Detail: Southeast 2 feet at 4 seconds. A chance of showers and
thunderstorms.
.WEDNESDAY NIGHT...South winds 5 to 10 knots. Seas around 2 feet.
A slight chance of showers and thunderstorms after midnight.
.THURSDAY...South winds around 5 knots. Seas 1 foot or less. A
slight chance of showers and thunderstorms in the morning.
.THURSDAY NIGHT...South winds 5 to 10 knots. Seas 1 foot or less.
.FRIDAY...Southeast winds around 5 knots. Seas 1 foot or less,
then around 2 feet in the afternoon. A chance of showers and
thunderstorms.
.FRIDAY NIGHT...Southeast winds 5 to 10 knots. Seas around
2 feet. A slight chance of showers and thunderstorms after
midnight.

Winds and seas higher in and near thunderstorms.

$$