Coastal Waters Forecast
Issued by NWS New Orleans/Baton Rouge, LA

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FZUS54 KLIX 131726
CWFLIX

Coastal Waters Forecast
National Weather Service New Orleans LA
1226 PM CDT Wed Aug 13 2025

Pascagoula to Atchafalaya River out to 60 NM

Seas are provided as a range of the average height of the highest
1/3 of the waves...along with the occasional height of the average
highest 10 percent of the waves.

GMZ500-GMZ501-140600-
1226 PM CDT Wed Aug 13 2025

.SYNOPSIS FOR PASCAGOULA TO ATCHAFALAYA RIVER OUT 60 NM...

Convection will continue to impact the coastal waters especially
overnight and early in the morning tonight and tomorrow before
slowly decreasing in coverage heading into the weekend. High
pressure centered to the east will slowly work west over the central
and north-central Gulf leading to generally light winds Friday and
through the weekend. Otherwise the main impacts is really just
showers and thunderstorms. With any thunderstorm locally higher
winds and seas are expected and waterspout will be possible.

$$

GMZ530-140600-
Lake Pontchartrain and Lake Maurepas-
1226 PM CDT Wed Aug 13 2025

.THIS AFTERNOON...Southwest winds around 5 knots. Waves 1 foot or
less. A slight chance of showers and thunderstorms early, then a
chance of showers and thunderstorms late.
.TONIGHT...Southwest winds 5 to 10 knots. Waves around 2 feet in the
evening, then 1 foot or less. A chance of showers and thunderstorms
in the evening.
.THURSDAY...Southwest winds around 5 knots. Waves 1 foot or less. A
slight chance of showers and thunderstorms in the morning, then a
chance of showers and thunderstorms in the afternoon.
.THURSDAY NIGHT...Southwest winds around 5 knots. Waves 1 foot or
less.
.FRIDAY...West winds around 5 knots, becoming southwest in the
afternoon. Waves 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...Southwest winds around 5 knots. Waves 1 foot or
less.
.SATURDAY...Northwest winds around 5 knots. Waves 1 foot or less. A
slight chance of showers and thunderstorms in the morning, then a
chance of showers and thunderstorms in the afternoon.
.SATURDAY NIGHT...Northwest winds around 5 knots. Waves 1 foot or
less. A slight chance of showers and thunderstorms in the evening.
.SUNDAY...North winds around 5 knots, becoming east in the
afternoon. Waves 1 foot or less. A chance of showers and
thunderstorms.
.SUNDAY NIGHT...Southeast winds around 5 knots, becoming northeast
after midnight. Waves 1 foot or less. A slight chance of showers and
thunderstorms in the evening.

Winds and waves higher in and near thunderstorms.

$$

GMZ534-140600-
Lake Borgne-
1226 PM CDT Wed Aug 13 2025

.THIS AFTERNOON...West winds around 5 knots, becoming south late.
Waves 1 foot or less. A slight chance of showers and thunderstorms
early, then a chance of showers and thunderstorms late.
.TONIGHT...Southwest winds 5 to 10 knots. Waves around 2 feet. A
chance of showers and thunderstorms in the evening.
.THURSDAY...West winds 5 to 10 knots, becoming southwest in the
afternoon. Waves 1 foot or less. A slight chance of showers and
thunderstorms in the morning, then a chance of showers and
thunderstorms in the afternoon.
.THURSDAY NIGHT...Southwest winds 5 to 10 knots. Waves 1 foot or
less.
.FRIDAY...West winds around 5 knots, becoming southwest in the
afternoon. Waves 1 foot or less. A chance of showers and
thunderstorms.
.FRIDAY NIGHT...Southwest winds around 5 knots. Waves 1 foot or
less.
.SATURDAY...Northwest winds around 5 knots. Waves 1 foot or less. A
chance of showers and thunderstorms.
.SATURDAY NIGHT...Southwest winds around 5 knots, becoming northwest
after midnight. Waves 1 foot or less. A slight chance of showers and
thunderstorms.
.SUNDAY...North winds around 5 knots, becoming east in the
afternoon. Waves 1 foot or less. A chance of showers and
thunderstorms.
.SUNDAY NIGHT...Southeast winds around 5 knots, becoming northeast
after midnight. Waves 1 foot or less. A slight chance of showers and
thunderstorms.

Winds and waves higher in and near thunderstorms.

$$

GMZ532-140600-
Mississippi Sound-
1226 PM CDT Wed Aug 13 2025

.THIS AFTERNOON...Southwest winds 5 to 10 knots. Waves around
2 feet. A slight chance of showers and thunderstorms early, then a
chance of showers and thunderstorms late.
.TONIGHT...Southwest winds around 10 knots. Waves 2 to 3 feet. A
slight chance of showers and thunderstorms.
.THURSDAY...West winds 5 to 10 knots, becoming southwest in the
afternoon. Waves 1 foot or less, then around 2 feet in the
afternoon. A slight chance of showers and thunderstorms in the
morning, then a chance of showers and thunderstorms in the
afternoon.
.THURSDAY NIGHT...Southwest winds 5 to 10 knots. Waves around
2 feet.
.FRIDAY...Northwest winds around 5 knots, becoming southwest in the
afternoon. Waves 1 foot or less, then 1 to 2 feet in the afternoon.
A slight chance of showers and thunderstorms in the morning, then a
chance of showers and thunderstorms in the afternoon.
.FRIDAY NIGHT...Southwest winds 5 to 10 knots, becoming west after
midnight. Waves 1 foot or less.
.SATURDAY...Northwest winds around 5 knots, becoming southwest in
the afternoon. Waves 1 foot or less. A slight chance of showers and
thunderstorms in the morning, then a chance of showers and
thunderstorms in the afternoon.
.SATURDAY NIGHT...Northwest winds around 5 knots. Waves 1 foot or
less. A slight chance of showers and thunderstorms.
.SUNDAY...North winds around 5 knots, becoming southeast in the
afternoon. Waves 1 foot or less. A chance of showers and
thunderstorms.
.SUNDAY NIGHT...Southeast winds around 5 knots, becoming northeast
after midnight. Waves 1 foot or less. A slight chance of showers and
thunderstorms in the evening, then a chance of showers and
thunderstorms after midnight.

Winds and waves higher in and near thunderstorms.

$$

GMZ536-538-140600-
Chandeleur Sound-Breton Sound-
1226 PM CDT Wed Aug 13 2025

.THIS AFTERNOON...Southwest winds 5 to 10 knots. Waves 1 to 2 feet.
A slight chance of showers and thunderstorms.
.TONIGHT...Southwest winds 10 to 15 knots. Waves 2 to 3 feet. A
slight chance of showers and thunderstorms.
.THURSDAY...West winds 5 to 10 knots, becoming southwest in the
afternoon. Waves 1 foot or less, then 1 to 2 feet in the afternoon.
A chance of showers and thunderstorms.
.THURSDAY NIGHT...Southwest winds 5 to 10 knots. Waves around
2 feet. A slight chance of showers and thunderstorms after midnight.
.FRIDAY...Northwest winds 5 to 10 knots, becoming southwest in the
afternoon. Waves 1 foot or less. A chance of showers and
thunderstorms, mainly in the morning.
.FRIDAY NIGHT...Southwest winds 5 to 10 knots, becoming west after
midnight. Waves 1 foot or less.
.SATURDAY...Northwest winds 5 to 10 knots, diminishing to around
5 knots in the afternoon. Waves 1 foot or less. A chance of showers
and thunderstorms.
.SATURDAY NIGHT...West winds around 5 knots. Waves 1 foot or less. A
slight chance of showers and thunderstorms in the evening, then a
chance of showers and thunderstorms after midnight.
.SUNDAY...North winds 5 to 10 knots, becoming east in the afternoon.
Waves 1 foot or less. A chance of showers and thunderstorms.
.SUNDAY NIGHT...Southeast winds around 5 knots, becoming northeast
after midnight. Waves 1 foot or less. A slight chance of showers and
thunderstorms in the evening, then a chance of showers and
thunderstorms after midnight.

Winds and waves higher in and near thunderstorms.

$$

GMZ555-557-140600-
Coastal Waters from Boothville LA to Southwest Pass of the
Mississippi River out 20 nm-
Coastal waters from Pascagoula Mississippi to Stake Island out 20 NM-
1226 PM CDT Wed Aug 13 2025

.THIS AFTERNOON...Southwest winds 5 to 10 knots. Seas around 2 feet.
Wave Detail: South 2 feet at 5 seconds. A slight chance of showers
and thunderstorms.
.TONIGHT...Southwest winds around 10 knots. Seas around 2 feet. Wave
Detail: Southwest 2 feet at 5 seconds. A slight chance of showers
and thunderstorms.
.THURSDAY...West winds 5 to 10 knots. Seas around 2 feet in the
morning, then 1 foot or less. Wave Detail: West 1 foot at 4 seconds
and southeast 1 foot at 5 seconds, becoming south 1 foot at
4 seconds. A chance of showers and thunderstorms, mainly in the
morning.
.THURSDAY NIGHT...Southwest winds 5 to 10 knots. Seas around 2 feet
in the evening, then 1 foot or less. Wave Detail: South 1 foot at
4 seconds, becoming south 1 foot at 5 seconds. A slight chance of
showers and thunderstorms after midnight.
.FRIDAY...Northwest winds around 5 knots, becoming southwest around
5 knots in the afternoon. Seas 1 foot or less. Wave Detail: West
1 foot at 3 seconds and southeast 1 foot at 5 seconds. A chance of
showers and thunderstorms, mainly in the morning.
.FRIDAY NIGHT...Southwest winds around 5 knots. Seas 1 foot or less.
Wave Detail: Southwest 1 foot at 3 seconds and south 1 foot at
6 seconds. A slight chance of showers and thunderstorms after
midnight.
.SATURDAY...North winds around 5 knots. Seas 1 foot or less. Wave
Detail: Northwest 1 foot at 2 seconds and southeast 1 foot at
6 seconds. A chance of showers and thunderstorms.
.SATURDAY NIGHT...Northwest winds around 5 knots. Seas 1 foot or
less. Wave Detail: Northeast 1 foot at 4 seconds. A slight chance of
showers and thunderstorms in the evening, then a chance of showers
and thunderstorms after midnight.
.SUNDAY...North winds 5 to 10 knots, becoming northeast in the
afternoon. Seas 1 foot or less. Wave Detail: North 1 foot at
3 seconds. A chance of showers and thunderstorms.
.SUNDAY NIGHT...East winds around 5 knots. Seas 1 foot or less. Wave
Detail: Southeast 1 foot at 4 seconds. A slight chance of showers
and thunderstorms in the evening, then a chance of showers and
thunderstorms after midnight.

Winds and seas higher in and near thunderstorms.

$$

GMZ550-552-140600-
Coastal Waters from Port Fourchon LA to Lower Atchafalaya River LA
out 20 nm-
Coastal waters from the Southwest Pass of the Mississippi River to
Port Fourchon Louisiana out 20 NM-
1226 PM CDT Wed Aug 13 2025

.THIS AFTERNOON...Southwest winds 5 to 10 knots. Seas 1 to 2 feet.
Wave Detail: West 1 foot at 2 seconds and south 1 foot at 5 seconds.
A slight chance of showers and thunderstorms.
.TONIGHT...Southwest winds 5 to 10 knots. Seas 1 to 2 feet. Wave
Detail: South 1 foot at 4 seconds. A slight chance of showers and
thunderstorms after midnight.
.THURSDAY...Southwest winds 5 to 10 knots. Seas 1 to 2 feet in the
morning, then 1 foot or less. Wave Detail: Southwest 1 foot at
4 seconds, becoming south 1 foot at 5 seconds. A chance of showers
and thunderstorms.
.THURSDAY NIGHT...Southwest winds 5 to 10 knots. Seas 1 to 2 feet in
the evening, then 1 foot or less. Wave Detail: South 1 foot at
5 seconds. A slight chance of showers and thunderstorms after
midnight.
.FRIDAY...Southwest winds around 5 knots, becoming south in the
afternoon. Seas 1 foot or less. Wave Detail: South 1 foot at
5 seconds. A chance of showers and thunderstorms.
.FRIDAY NIGHT...South winds around 5 knots. Seas 1 foot or less.
Wave Detail: South 1 foot at 5 seconds.
.SATURDAY...North winds around 5 knots, becoming northeast around
5 knots in the afternoon. Seas 1 foot or less. Wave Detail: South
1 foot at 5 seconds. A chance of showers and thunderstorms.
.SATURDAY NIGHT...Southwest winds around 5 knots, becoming northwest
after midnight. Seas 1 foot or less. Wave Detail: South 1 foot at
5 seconds. A chance of showers and thunderstorms after midnight.
.SUNDAY...North winds 5 to 10 knots, becoming northeast in the
afternoon. Seas 1 to 2 feet in the morning, then 1 foot or less.
Wave Detail: Northwest 1 foot at 2 seconds and southeast 1 foot at
4 seconds, becoming northwest 1 foot at 2 seconds and northeast
1 foot at 4 seconds. Showers and thunderstorms likely, mainly in the
morning.
.SUNDAY NIGHT...Southeast winds around 5 knots, becoming northeast
around 5 knots after midnight. Seas 1 foot or less. Wave Detail:
Southeast 1 foot at 4 seconds. A slight chance of showers and
thunderstorms in the evening, then a chance of showers and
thunderstorms after midnight.

Winds and seas higher in and near thunderstorms.

$$

GMZ575-577-140600-
Coastal Waters from Stake Island LA to Southwest Pass of the
Mississippi River from 20 to 60 nm-
Coastal waters from Pascagoula Mississippi to Stake Island Louisiana
out 20 to 60 NM-
1226 PM CDT Wed Aug 13 2025

.THIS AFTERNOON...Southwest winds 5 to 10 knots. Seas around 2 feet.
Wave Detail: South 2 feet at 5 seconds. A chance of showers and
thunderstorms early, then a slight chance of showers and
thunderstorms late.
.TONIGHT...Southwest winds around 10 knots. Seas around 2 feet. Wave
Detail: Southwest 2 feet at 5 seconds. A slight chance of showers
and thunderstorms in the evening, then a chance of showers and
thunderstorms after midnight.
.THURSDAY...West winds 5 to 10 knots. Seas around 2 feet in the
morning, then 1 foot or less. Wave Detail: West 1 foot at 4 seconds
and south 1 foot at 5 seconds, becoming south 1 foot at 5 seconds. A
chance of showers and thunderstorms.
.THURSDAY NIGHT...Southwest winds 5 to 10 knots. Seas 1 foot or
less. Wave Detail: South 1 foot at 5 seconds. A slight chance of
showers and thunderstorms after midnight.
.FRIDAY...Northwest winds around 5 knots. Seas 1 foot or less. Wave
Detail: West 1 foot at 4 seconds and south 1 foot at 5 seconds. A
chance of showers and thunderstorms, mainly in the morning.
.FRIDAY NIGHT...South winds around 5 knots, becoming west after
midnight. Seas 1 foot or less. Wave Detail: Southwest 1 foot at
4 seconds and south 1 foot at 7 seconds. A slight chance of showers
and thunderstorms after midnight.
.SATURDAY...North winds around 5 knots. Seas 1 foot or less. Wave
Detail: Northwest 1 foot at 3 seconds and southeast 1 foot at
7 seconds. A chance of showers and thunderstorms.
.SATURDAY NIGHT...North winds around 5 knots. Seas 1 foot or less.
Wave Detail: Northwest 1 foot at 3 seconds and southeast 1 foot at
5 seconds. A chance of showers and thunderstorms after midnight.
.SUNDAY...North winds 5 to 10 knots. Seas 1 foot or less. Wave
Detail: North 1 foot at 3 seconds and southeast 1 foot at 5 seconds.
A chance of thunderstorms. Showers likely, mainly in the morning.
.SUNDAY NIGHT...Northeast winds around 5 knots. Seas 1 foot or less.
Wave Detail: Northwest 1 foot at 3 seconds and east 1 foot at
4 seconds. A chance of showers and thunderstorms after midnight.

Winds and seas higher in and near thunderstorms.

$$

GMZ570-572-140600-
Coastal waters from Port Fourchon Louisiana to Lower Atchafalaya
River LA from 20 to 60 NM-
Coastal waters from Southwest Pass of the Mississippi River to Port
Fourchon Louisiana from 20 to 60 NM-
1226 PM CDT Wed Aug 13 2025

.THIS AFTERNOON...West winds around 5 knots, becoming southwest
late. Seas around 2 feet. Wave Detail: South 2 feet at 5 seconds and
west 1 foot at 3 seconds. A chance of showers and thunderstorms
early, then a slight chance of showers and thunderstorms late.
.TONIGHT...Southwest winds 5 to 10 knots. Seas around 2 feet. Wave
Detail: South 2 feet at 4 seconds. A chance of showers and
thunderstorms after midnight.
.THURSDAY...Southwest winds 5 to 10 knots. Seas around 2 feet. Wave
Detail: Southwest 1 foot at 5 seconds. Showers and thunderstorms
likely, mainly in the morning.
.THURSDAY NIGHT...South winds 5 to 10 knots. Seas around 2 feet.
Wave Detail: South 1 foot at 5 seconds. A slight chance of showers
and thunderstorms after midnight.
.FRIDAY...Southeast winds around 5 knots. Seas 1 foot or less. Wave
Detail: South 1 foot at 5 seconds. A chance of showers and
thunderstorms.
.FRIDAY NIGHT...Southeast winds around 5 knots. Seas 1 foot or less,
then around 2 feet after midnight. Wave Detail: Southwest 1 foot at
4 seconds and southeast 1 foot at 7 seconds, becoming south 1 foot
at 6 seconds.
.SATURDAY...Northeast winds around 5 knots. Seas around 2 feet. Wave
Detail: Southeast 2 feet at 6 seconds. A chance of showers and
thunderstorms.
.SATURDAY NIGHT...Northeast winds around 5 knots. Seas 1 foot or
less. Wave Detail: Southeast 1 foot at 5 seconds. A slight chance of
showers and thunderstorms after midnight.
.SUNDAY...North winds 5 to 10 knots. Seas around 2 feet. Wave
Detail: Southeast 2 feet at 5 seconds and northwest 1 foot at
3 seconds. Showers and thunderstorms likely, mainly in the morning.
.SUNDAY NIGHT...Northeast winds around 5 knots. Seas 1 foot or less.
Wave Detail: Northwest 1 foot at 3 seconds and east 1 foot at
4 seconds. A chance of showers and thunderstorms after midnight.

Winds and seas higher in and near thunderstorms.

$$