563
FZUS54 KLIX 200446
CWFLIX

Coastal Waters Forecast
National Weather Service New Orleans LA
1146 PM CDT Tue Aug 19 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-GMZ501-201700-
1146 PM CDT Tue Aug 19 2025

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

No significant wind or wave conditions are forecast in the coastal
waters through the weekend. Prevailing winds will remain below
10 knots and seas will run 2 feet or less. Thunderstorm activity
will continue to be the primary concern for mariners through the
period. These thunderstorms will develop primarily in the morning
hours over the offshore waters before pushing inland on the
seabreeze in the afternoon hours. Any storms that form will produce
locally higher winds and seas along with the potential for a few
waterspouts.

$$

GMZ530-201700-
Lake Pontchartrain and Lake Maurepas-
1146 PM CDT Tue Aug 19 2025

.OVERNIGHT...Northwest winds around 5 knots. Waves 1 foot or less.
.WEDNESDAY...North winds around 5 knots, becoming southeast in the
afternoon. Waves 1 foot or less. A slight chance of showers and
thunderstorms in the afternoon.
.WEDNESDAY NIGHT...South winds around 5 knots, becoming west after
midnight. Waves 1 foot or less.
.THURSDAY...North winds around 5 knots, becoming west in the
afternoon. Waves 1 foot or less. Showers and thunderstorms likely in
the afternoon.
.THURSDAY NIGHT...Southwest winds around 5 knots, becoming northwest
after midnight. Waves 1 foot or less. A chance of showers and
thunderstorms, mainly in the evening.
.FRIDAY...Northwest winds around 5 knots. Waves 1 foot or less. A
chance of showers and thunderstorms in the morning, then showers and
thunderstorms likely in the afternoon.
.FRIDAY NIGHT...West winds around 5 knots. Waves 1 foot or less. A
chance of showers and thunderstorms.
.SATURDAY...Northwest winds around 5 knots, becoming southwest in
the afternoon. Waves 1 foot or less. A chance of showers and
thunderstorms.
.SATURDAY NIGHT...Southwest winds around 5 knots. Waves 1 foot or
less. A slight chance of showers and thunderstorms.
.SUNDAY...Northwest winds around 5 knots, becoming southeast 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.
.SUNDAY NIGHT...South winds around 5 knots, becoming west after
midnight. Waves 1 foot or less.

Winds and waves higher in and near thunderstorms.

$$

GMZ534-201700-
Lake Borgne-
1146 PM CDT Tue Aug 19 2025

.OVERNIGHT...Southwest winds around 5 knots, becoming northwest.
Waves 1 foot or less.
.WEDNESDAY...Northeast winds around 5 knots, becoming east in the
afternoon. Waves 1 foot or less. A slight chance of showers and
thunderstorms.
.WEDNESDAY NIGHT...South winds around 5 knots, becoming west after
midnight. Waves 1 foot or less.
.THURSDAY...Northwest winds around 5 knots, becoming south around
5 knots 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 around 5 knots. Waves 1 foot or
less. A chance of showers and thunderstorms.
.FRIDAY...West winds around 5 knots. Waves 1 foot or less. A chance
of showers and thunderstorms in the morning, then showers and
thunderstorms likely in the afternoon.
.FRIDAY NIGHT...Southwest winds around 5 knots. Waves 1 foot or
less. A chance of showers and thunderstorms.
.SATURDAY...West winds around 5 knots. Waves 1 foot or less. A
chance of showers and thunderstorms.
.SATURDAY NIGHT...Southwest 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...Northwest winds around 5 knots, becoming east in the
afternoon. Waves 1 foot or less. A chance of showers and
thunderstorms.
.SUNDAY NIGHT...Southwest winds around 5 knots, becoming west after
midnight. Waves 1 foot or less. A slight chance of showers and
thunderstorms after midnight.

Winds and waves higher in and near thunderstorms.

$$

GMZ532-201700-
Mississippi Sound-
1146 PM CDT Tue Aug 19 2025

.OVERNIGHT...Southeast winds around 5 knots, becoming north late.
Waves 1 foot or less.
.WEDNESDAY...Northeast winds around 5 knots, becoming southeast in
the afternoon. Waves 1 foot or less. A slight chance of showers and
thunderstorms.
.WEDNESDAY NIGHT...Southwest winds 5 to 10 knots, becoming west
after midnight. Waves 1 foot or less.
.THURSDAY...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.
.THURSDAY NIGHT...West winds 5 to 10 knots. Waves 1 foot or less. A
chance of showers and thunderstorms.
.FRIDAY...West winds around 5 knots, becoming southwest in the
afternoon. Waves 1 foot or less. A chance of showers and
thunderstorms in the morning, then showers and thunderstorms likely
in the afternoon.
.FRIDAY NIGHT...Southwest winds around 5 knots. Waves 1 foot or
less. A chance of showers and thunderstorms.
.SATURDAY...Northwest winds around 5 knots, becoming southwest in
the afternoon. Waves 1 foot or less. A chance of showers and
thunderstorms.
.SATURDAY NIGHT...Southwest winds 5 to 10 knots, becoming west after
midnight. Waves 1 foot or less. A chance of showers and
thunderstorms.
.SUNDAY...Northwest winds around 5 knots, becoming south in the
afternoon. Waves 1 foot or less. A chance of showers and
thunderstorms.
.SUNDAY NIGHT...Southwest winds 5 to 10 knots, becoming west after
midnight. Waves 1 foot or less. A slight chance of showers and
thunderstorms after midnight.

Winds and waves higher in and near thunderstorms.

$$

GMZ536-538-201700-
Chandeleur Sound-Breton Sound-
1146 PM CDT Tue Aug 19 2025

.OVERNIGHT...Southeast winds around 5 knots, becoming northeast.
Waves 1 foot or less. A slight chance of showers and thunderstorms
late.
.WEDNESDAY...Northeast winds 5 to 10 knots, becoming southeast in
the afternoon. Waves 1 foot or less. A slight chance of showers. A
chance of thunderstorms, mainly in the morning.
.WEDNESDAY NIGHT...South winds around 5 knots, becoming west after
midnight. Waves 1 foot or less.
.THURSDAY...West winds around 5 knots, becoming southwest in the
afternoon. Waves 1 foot or less. A chance of showers and
thunderstorms.
.THURSDAY NIGHT...Southwest winds 5 to 10 knots. Waves 1 foot or
less. A chance of showers and thunderstorms.
.FRIDAY...Southwest winds around 5 knots. Waves 1 foot or less. A
chance of showers and thunderstorms in the morning, then showers and
thunderstorms likely in the afternoon.
.FRIDAY NIGHT...Southwest winds around 5 knots. Waves 1 foot or
less. A chance of showers and thunderstorms.
.SATURDAY...West winds around 5 knots. Waves 1 foot or less. A
chance of showers and thunderstorms.
.SATURDAY NIGHT...Southwest winds 5 to 10 knots. Waves 1 foot or
less. A chance of showers and thunderstorms.
.SUNDAY...Northwest winds 5 to 10 knots, becoming southwest in the
afternoon. Waves 1 foot or less. A chance of showers and
thunderstorms.
.SUNDAY NIGHT...West winds 5 to 10 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.

Winds and waves higher in and near thunderstorms.

$$

GMZ555-557-201700-
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-
1146 PM CDT Tue Aug 19 2025

.OVERNIGHT...East winds around 5 knots, becoming north late. Seas
1 foot or less. Wave Detail: East 1 foot at 3 seconds. A slight
chance of showers and thunderstorms late.
.WEDNESDAY...Northeast winds 5 to 10 knots, becoming east in the
afternoon. Seas 1 foot or less. Wave Detail: Northeast 1 foot at
3 seconds. A chance of showers and thunderstorms, mainly in the
morning.
.WEDNESDAY NIGHT...South winds around 5 knots, becoming west after
midnight. Seas 1 foot or less. Wave Detail: East 1 foot at
3 seconds.
.THURSDAY...Northwest winds around 5 knots, becoming southwest in
the afternoon. Seas 1 foot or less. A chance of showers and
thunderstorms.
.THURSDAY NIGHT...Southwest winds 5 to 10 knots. Seas 1 foot or
less. Wave Detail: Southwest 1 foot at 2 seconds. A chance of
showers and thunderstorms.
.FRIDAY...Southwest winds around 5 knots. Seas 1 foot or less. Wave
Detail: Southwest 1 foot at 2 seconds. A chance of showers and
thunderstorms.
.FRIDAY NIGHT...Southwest winds around 5 knots. Seas 1 foot or less.
Wave Detail: Southwest 1 foot at 2 seconds. A chance of
thunderstorms. A chance of showers in the evening, then showers
likely after midnight.
.SATURDAY...West winds 5 to 10 knots. Seas 1 foot or less. Wave
Detail: West 1 foot at 2 seconds. A chance of showers and
thunderstorms.
.SATURDAY NIGHT...Southwest winds 5 to 10 knots. Seas 1 foot or
less. Wave Detail: Southwest 1 foot at 3 seconds. A chance of
showers and thunderstorms.
.SUNDAY...West winds 5 to 10 knots. Seas 1 foot or less. Wave
Detail: West 1 foot at 2 seconds. A chance of showers and
thunderstorms.
.SUNDAY NIGHT...West winds 5 to 10 knots. Seas 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 seas higher in and near thunderstorms.

$$

GMZ550-552-201700-
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-
1146 PM CDT Tue Aug 19 2025

.OVERNIGHT...North winds around 5 knots. Seas 1 foot or less. Wave
Detail: East 1 foot at 4 seconds. A slight chance of showers and
thunderstorms late.
.WEDNESDAY...North winds 5 to 10 knots, becoming east in the
afternoon. Seas 1 foot or less. Wave Detail: Northeast 1 foot at
3 seconds. A chance of showers and thunderstorms.
.WEDNESDAY NIGHT...South winds around 5 knots, becoming west around
5 knots after midnight. Seas 1 foot or less. Wave Detail: East
1 foot at 3 seconds. A slight chance of showers and thunderstorms
after midnight.
.THURSDAY...Northwest winds around 5 knots, becoming southwest in
the afternoon. Seas 1 foot or less. A chance of showers and
thunderstorms.
.THURSDAY NIGHT...Southwest winds around 5 knots. Seas 1 foot or
less. A slight chance of showers and thunderstorms in the evening,
then a chance of showers and thunderstorms after midnight.
.FRIDAY...West winds around 5 knots. Seas 1 foot or less. A chance
of thunderstorms. A chance of showers in the morning, then showers
likely in the afternoon.
.FRIDAY NIGHT...Southwest winds around 5 knots. Seas 1 foot or less.
A slight chance of showers and thunderstorms in the evening, then
showers likely with a chance of thunderstorms after midnight.
.SATURDAY...West winds around 5 knots. Seas 1 foot or less. Wave
Detail: Southwest 1 foot at 2 seconds. A chance of showers and
thunderstorms.
.SATURDAY NIGHT...Southwest winds around 5 knots. Seas 1 foot or
less. Wave Detail: Southwest 1 foot at 3 seconds. A slight chance of
showers and thunderstorms in the evening, then a chance of showers
and thunderstorms after midnight.
.SUNDAY...West winds 5 to 10 knots. Seas 1 foot or less. Wave
Detail: West 1 foot at 3 seconds. A chance of showers and
thunderstorms.
.SUNDAY NIGHT...Southwest winds around 5 knots. Seas 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 seas higher in and near thunderstorms.

$$

GMZ575-577-201700-
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-
1146 PM CDT Tue Aug 19 2025

.OVERNIGHT...Northeast winds 5 to 10 knots. Seas 1 foot or less.
Wave Detail: East 1 foot at 3 seconds. A chance of showers and
thunderstorms late.
.WEDNESDAY...Northeast winds 5 to 10 knots. Seas 1 foot or less.
Wave Detail: Northeast 1 foot at 3 seconds. A chance of showers and
thunderstorms.
.WEDNESDAY NIGHT...Southeast winds around 5 knots, becoming west
after midnight. Seas 1 foot or less. Wave Detail: East 1 foot at
3 seconds.
.THURSDAY...West winds around 5 knots. Seas 1 foot or less. A chance
of showers and thunderstorms.
.THURSDAY NIGHT...Southwest winds 5 to 10 knots. Seas 1 foot or
less. Wave Detail: Southwest 1 foot at 2 seconds. A slight chance of
showers and thunderstorms in the evening, then a chance of showers
and thunderstorms after midnight.
.FRIDAY...Southwest winds around 5 knots. Seas 1 foot or less. Wave
Detail: Southwest 1 foot at 2 seconds. A chance of showers and
thunderstorms.
.FRIDAY NIGHT...Southwest winds 5 to 10 knots. Seas 1 foot or less.
Wave Detail: Southwest 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.
.SATURDAY...West winds 5 to 10 knots. Seas 1 foot or less. Wave
Detail: Southwest 1 foot at 3 seconds. A chance of showers and
thunderstorms.
.SATURDAY NIGHT...Southwest winds 5 to 10 knots. Seas 1 foot or
less. Wave Detail: Southwest 1 foot at 4 seconds. A slight chance of
showers and thunderstorms in the evening, then showers likely with a
chance of thunderstorms after midnight.
.SUNDAY...West winds 5 to 10 knots. Seas 1 foot or less. Wave
Detail: West 1 foot at 3 seconds. A chance of showers and
thunderstorms.
.SUNDAY NIGHT...West winds 5 to 10 knots. Seas 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 seas higher in and near thunderstorms.

$$

GMZ570-572-201700-
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-
1146 PM CDT Tue Aug 19 2025

.OVERNIGHT...Northeast winds around 5 knots. Seas 1 foot or less.
Wave Detail: East 1 foot at 4 seconds. A slight chance of showers
and thunderstorms late.
.WEDNESDAY...Northeast winds 5 to 10 knots. Seas 1 foot or less.
Wave Detail: Northeast 1 foot at 4 seconds. A chance of showers and
thunderstorms.
.WEDNESDAY NIGHT...Southeast winds around 5 knots, becoming west
after midnight. Seas 1 foot or less. Wave Detail: East 1 foot at
3 seconds. A slight chance of showers and thunderstorms after
midnight.
.THURSDAY...Northwest winds around 5 knots, becoming west in the
afternoon. Seas 1 foot or less. A chance of showers and
thunderstorms.
.THURSDAY NIGHT...Southwest winds around 5 knots. Seas 1 foot or
less. A slight chance of showers and thunderstorms in the evening,
then a chance of showers and thunderstorms after midnight.
.FRIDAY...West winds around 5 knots. Seas 1 foot or less. Wave
Detail: West 1 foot at 2 seconds. A chance of showers and
thunderstorms.
.FRIDAY NIGHT...Southwest winds around 5 knots. Seas 1 foot or less.
Wave Detail: Southwest 1 foot at 2 seconds. A slight chance of
showers and thunderstorms in the evening, then showers likely with a
chance of thunderstorms after midnight.
.SATURDAY...West winds 5 to 10 knots. Seas 1 foot or less. Wave
Detail: Southwest 1 foot at 3 seconds. A chance of showers and
thunderstorms.
.SATURDAY NIGHT...Southwest winds around 5 knots. Seas 1 foot or
less. Wave Detail: Southwest 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...West winds 5 to 10 knots. Seas 1 foot or less. Wave
Detail: West 1 foot at 3 seconds and south 1 foot at 4 seconds. A
chance of showers and thunderstorms.
.SUNDAY NIGHT...Southwest winds around 5 knots. Seas 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 seas higher in and near thunderstorms.

$$