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

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110
FZUS54 KLIX 040539
CWFLIX

Coastal Waters Forecast
National Weather Service New Orleans LA
1239 AM CDT Fri Jul 4 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-GMZ501-041815-
1239 AM CDT Fri Jul 4 2025

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

A lower threat of thunderstorms is expected through Saturday as an
area of high pressure moves in. The high will shift to the west and
a broad area of lower pressure will move in from the east for early
next week. This will allow winds to shift back to an onshore flow and
thunderstorm chances will increase. However, no significant impacts
to mariners are expected through the period outside of locally higher
winds and waves near any thunderstorms that form.

$$

GMZ530-041815-
Lake Pontchartrain and Lake Maurepas-
1239 AM CDT Fri Jul 4 2025

.REST OF TONIGHT...North winds around 5 knots. Waves 1 foot or less.
.FRIDAY...North winds around 5 knots, becoming west in the
afternoon. Waves 1 foot or less. A chance of showers and
thunderstorms, mainly in the afternoon.
.FRIDAY NIGHT...Northwest winds around 5 knots. Waves 1 foot or
less. A chance of showers and thunderstorms in the evening.
.SATURDAY...North winds around 5 knots, becoming east in the
afternoon. Waves 1 foot or less. A chance of showers and
thunderstorms in the afternoon.
.SATURDAY NIGHT...East winds around 5 knots. Waves 1 foot or less. A
slight chance of thunderstorms in the evening. A slight chance of
showers.
.SUNDAY...Northeast 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 showers and thunderstorms likely
in the afternoon.
.SUNDAY NIGHT...South winds around 5 knots, becoming west around
5 knots after midnight. Waves 1 foot or less. A slight chance of
showers and thunderstorms in the evening.
.MONDAY...Northeast 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.
.MONDAY NIGHT...Southwest winds around 5 knots. Waves 1 foot or
less.
.TUESDAY...West 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.
.TUESDAY NIGHT...Southwest winds around 5 knots. Waves 1 foot or
less.

Winds and waves higher in and near thunderstorms.

$$

GMZ534-041815-
Lake Borgne-
1239 AM CDT Fri Jul 4 2025

.REST OF TONIGHT...North winds around 5 knots. Waves 1 foot or less.
.FRIDAY...North winds 5 to 10 knots, becoming west 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...Northwest winds 5 to 10 knots. Waves 1 foot or less.
.SATURDAY...North winds 5 to 10 knots, becoming east 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...East winds around 5 knots, becoming north after
midnight. Waves 1 foot or less. A slight chance of thunderstorms. A
slight chance of showers in the evening, then a chance of showers
after midnight.
.SUNDAY...Northeast winds around 5 knots, becoming east 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.
.SUNDAY NIGHT...South winds around 5 knots, becoming southwest after
midnight. Waves 1 foot or less. A slight chance of thunderstorms. A
slight chance of showers in the evening, then a chance of showers
after midnight.
.MONDAY...North winds around 5 knots, becoming southeast 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.
.MONDAY NIGHT...Southwest winds 5 to 10 knots. Waves 1 foot or less.
A slight chance of showers and thunderstorms after midnight.
.TUESDAY...West winds around 5 knots. Waves 1 foot or less. A chance
of showers and thunderstorms.
.TUESDAY NIGHT...Southwest winds 5 to 10 knots. Waves 1 foot or
less. A slight chance of showers and thunderstorms after midnight.

Winds and waves higher in and near thunderstorms.

$$

GMZ532-041815-
Mississippi Sound-
1239 AM CDT Fri Jul 4 2025

.REST OF TONIGHT...Northeast winds around 5 knots. Waves 1 foot or
less.
.FRIDAY...North winds 5 to 10 knots, becoming west in the afternoon.
Waves 1 foot or less.
.FRIDAY NIGHT...West winds 5 to 10 knots, becoming north after
midnight. Waves 1 foot or less, then around 2 feet after midnight.
.SATURDAY...Northeast winds 5 to 10 knots, becoming southeast in the
afternoon. Waves around 2 feet in the morning, then 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...North winds around 5 knots. Waves 1 foot or less.
A chance of showers and thunderstorms.
.SUNDAY...Northeast winds around 5 knots, becoming southeast in the
afternoon. Waves 1 foot or less. A chance of showers and
thunderstorms.
.SUNDAY NIGHT...South winds 5 to 10 knots, becoming southwest 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.
.MONDAY...North winds around 5 knots, becoming south in the
afternoon. Waves 1 foot or less, then around 2 feet in the
afternoon. A chance of showers and thunderstorms.
.MONDAY NIGHT...Southwest winds 5 to 10 knots. Waves around 2 feet.
A slight chance of showers and thunderstorms.
.TUESDAY...West winds 5 to 10 knots, becoming southwest in the
afternoon. Waves 1 foot or less, then around 2 feet in the
afternoon. A chance of showers and thunderstorms.
.TUESDAY NIGHT...West winds around 10 knots. Waves 2 to 3 feet. 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.

$$

GMZ536-538-041815-
Chandeleur Sound-Breton Sound-
1239 AM CDT Fri Jul 4 2025

.REST OF TONIGHT...Northwest winds 5 to 10 knots. Waves 1 foot or
less. A slight chance of showers and thunderstorms.
.FRIDAY...North winds 5 to 10 knots. Waves 1 foot or less. A slight
chance of showers and thunderstorms.
.FRIDAY NIGHT...West winds 5 to 10 knots, becoming northwest after
midnight. Waves 1 foot or less, then around 2 feet after midnight. A
slight chance of showers and thunderstorms after midnight.
.SATURDAY...Northeast winds around 10 knots, becoming east in the
afternoon. Waves around 2 feet in the morning, then 1 foot or less.
A chance of showers and thunderstorms, mainly in the morning.
.SATURDAY NIGHT...East winds around 5 knots, becoming north 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.
.SUNDAY...Northeast winds 5 to 10 knots, becoming east in the
afternoon. Waves 1 foot or less. A chance of showers and
thunderstorms.
.SUNDAY NIGHT...South 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.
.MONDAY...Southwest winds around 5 knots, becoming south in the
afternoon. Waves 1 foot or less. A chance of thunderstorms. Showers
likely, mainly in the morning.
.MONDAY NIGHT...Southwest winds 5 to 10 knots. Waves around 2 feet.
A slight chance of showers and thunderstorms in the evening, then a
chance of showers and thunderstorms after midnight.
.TUESDAY...Southwest winds 5 to 10 knots. Waves 1 foot or less, then
1 to 2 feet in the afternoon. A chance of showers and thunderstorms.
.TUESDAY NIGHT...Southwest winds 10 to 15 knots. Waves 2 to 3 feet.
A chance of showers and thunderstorms after midnight.

Winds and waves higher in and near thunderstorms.

$$

GMZ555-557-041815-
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-
1239 AM CDT Fri Jul 4 2025

.REST OF TONIGHT...Northwest winds 5 to 10 knots. Seas 1 foot or
less. Wave Detail: Northwest 1 foot at 2 seconds and south 1 foot at
10 seconds. A slight chance of showers and thunderstorms.
.FRIDAY...North winds 5 to 10 knots. Seas around 2 feet. Wave
Detail: Northwest 1 foot at 2 seconds and south 1 foot at
10 seconds. A chance of showers and thunderstorms, mainly in the
morning.
.FRIDAY NIGHT...Northwest winds 5 to 10 knots. Seas 1 foot or less.
Wave Detail: Northeast 1 foot at 3 seconds and south 1 foot at
9 seconds. A chance of showers and thunderstorms after midnight.
.SATURDAY...North winds around 10 knots, becoming east in the
afternoon. Seas around 2 feet in the morning, then 1 foot or less.
Wave Detail: North 1 foot at 3 seconds and south 1 foot at
9 seconds, becoming northeast 1 foot at 3 seconds. A chance of
showers and thunderstorms, mainly in the morning.
.SATURDAY NIGHT...Northeast winds around 5 knots. Seas 1 foot or
less. Wave Detail: Northeast 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.
.SUNDAY...Northeast winds around 5 knots, becoming east in the
afternoon. Seas 1 foot or less. Wave Detail: Northeast 1 foot at
4 seconds. Showers and thunderstorms likely, mainly in the morning.
.SUNDAY NIGHT...South winds 5 to 10 knots. Seas 1 foot or less. Wave
Detail: East 1 foot at 4 seconds. A slight chance of showers and
thunderstorms in the evening, then a chance of showers and
thunderstorms after midnight.
.MONDAY...Southwest winds 5 to 10 knots. Seas 1 foot or less. Wave
Detail: South 1 foot at 3 seconds and east 1 foot at 4 seconds. A
chance of thunderstorms. Showers likely, mainly in the morning.
.MONDAY NIGHT...Southwest winds 5 to 10 knots. Seas 1 foot or less,
then around 2 feet after midnight. Wave Detail: South 1 foot at
3 seconds, becoming southwest 1 foot at 3 seconds. A chance of
showers and thunderstorms after midnight.
.TUESDAY...West winds 5 to 10 knots. Seas around 2 feet in the
morning, then 1 foot or less. Wave Detail: South 1 foot at
4 seconds. A chance of showers and thunderstorms, mainly in the
morning.
.TUESDAY NIGHT...West winds 5 to 10 knots. Seas around 2 feet. A
chance of showers and thunderstorms after midnight.

Winds and seas higher in and near thunderstorms.

$$

GMZ550-552-041815-
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-
1239 AM CDT Fri Jul 4 2025

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

Winds and seas higher in and near thunderstorms.

$$

GMZ575-577-041815-
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-
1239 AM CDT Fri Jul 4 2025

.REST OF TONIGHT...Northwest winds 5 to 10 knots. Seas around
2 feet. Wave Detail: West 1 foot at 4 seconds and south 1 foot at
10 seconds. A slight chance of showers and thunderstorms.
.FRIDAY...Northwest winds 5 to 10 knots. Seas around 2 feet. Wave
Detail: Northwest 2 feet at 3 seconds and south 1 foot at
10 seconds. A chance of showers and thunderstorms, mainly in the
morning.
.FRIDAY NIGHT...Northwest winds 5 to 10 knots. Seas around 2 feet.
Wave Detail: Northeast 1 foot at 3 seconds and west 1 foot at
4 seconds. A chance of showers and thunderstorms after midnight.
.SATURDAY...Northeast winds 5 to 10 knots. Seas around 2 feet. Wave
Detail: North 1 foot at 3 seconds and south 1 foot at 9 seconds.
Showers and thunderstorms likely, mainly in the morning.
.SATURDAY NIGHT...Northeast winds around 5 knots. Seas around
2 feet. Wave Detail: Northeast 2 feet at 5 seconds and northwest
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...East winds around 5 knots. Seas 1 foot or less. Wave
Detail: Northeast 1 foot at 4 seconds. Showers with thunderstorms
likely in the morning, then a chance of showers and thunderstorms in
the afternoon.
.SUNDAY NIGHT...South winds around 5 knots. Seas 1 foot or less.
Wave Detail: South 1 foot at 3 seconds and east 1 foot at 4 seconds.
A chance of showers and thunderstorms after midnight.
.MONDAY...Southwest winds around 5 knots. Seas 1 foot or less. Wave
Detail: South 1 foot at 3 seconds and northeast 1 foot at 4 seconds.
A chance of thunderstorms. Showers likely, mainly in the morning.
.MONDAY NIGHT...Southwest winds 5 to 10 knots. Seas 1 foot or less,
then around 2 feet after midnight. Wave Detail: South 1 foot at
3 seconds, becoming south 1 foot at 4 seconds. A chance of showers
with a slight chance of thunderstorms after midnight.
.TUESDAY...West winds 5 to 10 knots. Seas 1 foot or less. Wave
Detail: South 1 foot at 4 seconds. A chance of showers and
thunderstorms, mainly in the morning.
.TUESDAY NIGHT...West winds 5 to 10 knots. Seas around 2 feet. A
chance of showers with a slight chance of thunderstorms after
midnight.

Winds and seas higher in and near thunderstorms.

$$

GMZ570-572-041815-
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-
1239 AM CDT Fri Jul 4 2025

.REST OF TONIGHT...West 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, then a chance of showers and
thunderstorms late.
.FRIDAY...Northwest winds 5 to 10 knots. Seas around 2 feet. Wave
Detail: Southwest 2 feet at 4 seconds. A chance of showers and
thunderstorms.
.FRIDAY NIGHT...Northwest winds 5 to 10 knots. Seas around 2 feet in
the evening, then 1 foot or less. Wave Detail: West 1 foot at
4 seconds and southeast 1 foot at 9 seconds, becoming northwest
1 foot at 3 seconds and 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.
.SATURDAY...North winds 5 to 10 knots. Seas around 2 feet. Wave
Detail: North 2 feet at 3 seconds. A chance of thunderstorms.
Showers likely, mainly in the morning.
.SATURDAY NIGHT...North winds around 5 knots. Seas 1 foot or less.
Wave Detail: North 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.
.SUNDAY...Northeast winds around 5 knots. Seas 1 foot or less. Wave
Detail: Northwest 1 foot at 2 seconds and northeast 1 foot at
5 seconds. A chance of thunderstorms. Showers, mainly in the
morning.
.SUNDAY NIGHT...South winds around 5 knots. Seas 1 foot or less.
Wave Detail: East 1 foot at 4 seconds. A slight chance of showers
and thunderstorms in the evening, then a chance of showers and
thunderstorms after midnight.
.MONDAY...South winds around 5 knots. Seas 1 foot or less. Wave
Detail: South 1 foot at 3 seconds and east 1 foot at 4 seconds. A
chance of thunderstorms. Showers likely, mainly in the morning.
.MONDAY NIGHT...South winds 5 to 10 knots. Seas 1 foot or less. Wave
Detail: South 1 foot at 3 seconds and east 1 foot at 4 seconds. A
chance of showers with a slight chance of thunderstorms after
midnight.
.TUESDAY...Southwest winds around 5 knots. Seas 1 foot or less. Wave
Detail: South 1 foot at 3 seconds. Showers likely with a chance of
thunderstorms in the morning, then a chance of showers with a slight
chance of thunderstorms in the afternoon.
.TUESDAY NIGHT...Southwest winds 5 to 10 knots. Seas around 2 feet.
A chance of showers with a slight chance of thunderstorms after
midnight.

Winds and seas higher in and near thunderstorms.

$$