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

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FZUS54 KLIX 040001
CWFLIX

Coastal Waters Forecast
National Weather Service New Orleans LA
701 PM CDT Wed Sep 3 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-GMZ501-041300-
701 PM CDT Wed Sep 3 2025

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

A reinforcing dry frontal passage will occur over the waters today
and a surface high will settle over the waters tonight into
tomorrow. Winds will be very light and variable through Saturday and
seas will run around 1 foot. Another front is projected to push
through on Sunday, and this front should be a bit stronger with some
cooler air associated with it. This will allow winds to rise to
10 to 15 knots on Monday, and there is some potential that winds
could rise higher into exercise caution range over the easter
waters. Seas will also respond and increase to 2 to 3 feet on
Monday.

$$

GMZ530-041300-
Lake Pontchartrain and Lake Maurepas-
701 PM CDT Wed Sep 3 2025

.TONIGHT...Southeast winds around 5 knots, becoming southwest after
midnight. Waves 1 foot or less.
.THURSDAY...West winds around 5 knots. Waves 1 foot or less.
.THURSDAY NIGHT...Southwest winds 5 to 10 knots. Waves around 2 feet
in the evening, then 1 foot or less.
.FRIDAY...Southwest winds around 5 knots, becoming southeast in the
afternoon. Waves 1 foot or less.
.FRIDAY NIGHT...Southeast winds 5 to 10 knots, becoming south after
midnight. Waves 1 to 2 feet in the evening, then 1 foot or less.
.SATURDAY...Southeast winds around 5 knots. Waves 1 foot or less.
.SATURDAY NIGHT...Southeast winds around 5 knots, becoming west
after midnight. Waves 1 foot or less.
.SUNDAY...Northeast winds around 5 knots. Waves 1 foot or less. A
slight chance of showers and thunderstorms in the afternoon.
.SUNDAY NIGHT...Northeast winds 5 to 10 knots. Waves 1 to 2 feet.
.MONDAY...Northeast winds 5 to 10 knots. Waves around 2 feet. A
slight chance of showers and thunderstorms in the afternoon.
.MONDAY NIGHT...Northeast winds 5 to 10 knots. Waves around 2 feet.

Winds and waves higher in and near thunderstorms.

$$

GMZ534-041300-
Lake Borgne-
701 PM CDT Wed Sep 3 2025

.TONIGHT...Southeast winds 5 to 10 knots, becoming southwest after
midnight. Waves 1 foot or less.
.THURSDAY...West winds around 5 knots. Waves 1 foot or less.
.THURSDAY NIGHT...Southwest winds 5 to 10 knots. Waves 1 foot or
less.
.FRIDAY...Southwest winds around 5 knots, becoming southeast in the
afternoon. Waves 1 foot or less.
.FRIDAY NIGHT...South winds 5 to 10 knots. Waves 1 foot or less.
.SATURDAY...Southeast winds around 5 knots. Waves 1 foot or less.
.SATURDAY NIGHT...South winds around 5 knots, becoming west after
midnight. Waves 1 foot or less.
.SUNDAY...Northeast winds 5 to 10 knots. Waves 1 foot or less. A
slight chance of showers and thunderstorms in the afternoon.
.SUNDAY NIGHT...Northeast winds 5 to 10 knots, increasing to 10 to
15 knots after midnight. Waves 2 to 3 feet.
.MONDAY...Northeast winds 10 to 15 knots. Waves 2 to 3 feet. A
slight chance of showers and thunderstorms in the afternoon.
.MONDAY NIGHT...Northeast winds 5 to 10 knots. Waves around 2 feet.
A slight chance of showers and thunderstorms.

Winds and waves higher in and near thunderstorms.

$$

GMZ532-041300-
Mississippi Sound-
701 PM CDT Wed Sep 3 2025

.TONIGHT...South winds 5 to 10 knots, becoming southwest after
midnight. Waves 1 foot or less.
.THURSDAY...Northwest winds around 5 knots, becoming south in the
afternoon. Waves 1 foot or less, then 1 to 2 feet in the afternoon.
.THURSDAY NIGHT...South winds 5 to 10 knots, becoming southwest
after midnight. Waves around 2 feet in the evening, then 1 foot or
less.
.FRIDAY...West winds around 5 knots, becoming southeast in the
afternoon. Waves 1 foot or less, then around 2 feet in the
afternoon.
.FRIDAY NIGHT...South winds 5 to 10 knots. Waves around 2 feet in
the evening, then 1 foot or less.
.SATURDAY...Southeast winds around 5 knots. Waves 1 foot or less.
.SATURDAY NIGHT...South winds around 5 knots, becoming west after
midnight. Waves 1 foot or less.
.SUNDAY...North winds 5 to 10 knots, becoming east in the afternoon.
Waves around 2 feet in the morning, then 1 foot or less.
.SUNDAY NIGHT...Northeast winds 5 to 10 knots, increasing to 10 to
15 knots after midnight. Waves 2 to 3 feet.
.MONDAY...Northeast winds 10 to 15 knots, becoming east 5 to
10 knots in the afternoon. Waves 2 to 3 feet. A slight chance of
showers and thunderstorms in the afternoon.
.MONDAY NIGHT...Northeast winds 5 to 10 knots, increasing to 10 to
15 knots after midnight. Waves around 2 feet. A slight chance of
showers and thunderstorms.

Winds and waves higher in and near thunderstorms.

$$

GMZ536-538-041300-
Chandeleur Sound-Breton Sound-
701 PM CDT Wed Sep 3 2025

.TONIGHT...Southeast winds 5 to 10 knots, becoming west late. Waves
1 foot or less.
.THURSDAY...Northwest winds around 5 knots, becoming southeast
around 5 knots in the afternoon. Waves 1 foot or less.
.THURSDAY NIGHT...Southwest winds 5 to 10 knots. Waves 1 foot or
less.
.FRIDAY...West winds around 5 knots, becoming southeast in the
afternoon. Waves 1 foot or less.
.FRIDAY NIGHT...South winds 5 to 10 knots. Waves 1 foot or less.
.SATURDAY...Southeast winds around 5 knots. Waves 1 foot or less.
.SATURDAY NIGHT...Southeast winds around 5 knots, becoming southwest
after midnight. Waves 1 foot or less.
.SUNDAY...North winds 5 to 10 knots, becoming northeast in the
afternoon. Waves 1 foot or less. A slight chance of showers and
thunderstorms in the afternoon.
.SUNDAY NIGHT...Northeast winds 5 to 10 knots, increasing to 10 to
15 knots after midnight. Waves 2 to 3 feet. A slight chance of
showers and thunderstorms.
.MONDAY...Northeast winds 10 to 15 knots. Waves 2 to 3 feet. A
slight chance of showers and thunderstorms.
.MONDAY NIGHT...Northeast winds 10 to 15 knots. Waves 2 to 3 feet. A
slight chance of showers and thunderstorms.

Winds and waves higher in and near thunderstorms.

$$

GMZ555-557-041300-
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-
701 PM CDT Wed Sep 3 2025

.TONIGHT...Southeast winds 5 to 10 knots, becoming south late. Seas
1 foot or less.
.THURSDAY...North winds around 5 knots, becoming east in the
afternoon. Seas 1 foot or less.
.THURSDAY NIGHT...South winds around 5 knots. Seas 1 foot or less.
.FRIDAY...Northeast winds around 5 knots, becoming east in the
afternoon. Seas 1 foot or less.
.FRIDAY NIGHT...Southeast winds 5 to 10 knots. Seas 1 foot or less.
.SATURDAY...Southeast winds around 5 knots. Seas 1 foot or less. A
slight chance of showers and thunderstorms in the afternoon.
.SATURDAY NIGHT...Southeast winds around 5 knots, becoming southwest
after midnight. Seas 1 foot or less.
.SUNDAY...Northeast winds 5 to 10 knots. Seas 1 foot or less. A
slight chance of showers and thunderstorms.
.SUNDAY NIGHT...Northeast winds 5 to 10 knots, increasing to 10 to
15 knots after midnight. Seas 1 foot or less, then around 2 feet
after midnight. A slight chance of showers and thunderstorms.
.MONDAY...Northeast winds 10 to 15 knots. Seas 2 to 3 feet. A slight
chance of showers and thunderstorms in the morning, then a chance of
showers and thunderstorms in the afternoon.
.MONDAY NIGHT...Northeast winds around 10 knots. Seas around 2 feet.
A chance of showers. A slight chance of thunderstorms in the
evening, then a chance of thunderstorms after midnight.

Winds and seas higher in and near thunderstorms.

$$

GMZ550-552-041300-
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-
701 PM CDT Wed Sep 3 2025

.TONIGHT...Southeast winds 5 to 10 knots, diminishing to around
5 knots late. Seas 1 to 2 feet this evening, then 1 foot or less.
.THURSDAY...North winds around 5 knots, becoming south in the
afternoon. Seas 1 foot or less.
.THURSDAY NIGHT...South winds around 5 knots. Seas 1 foot or less.
.FRIDAY...Southeast winds around 5 knots. Seas 1 foot or less.
.FRIDAY NIGHT...Southeast winds 5 to 10 knots. Seas 1 foot or less.
.SATURDAY...Southeast winds around 5 knots. Seas 1 foot or less. A
slight chance of showers and thunderstorms in the afternoon.
.SATURDAY NIGHT...Southeast winds around 5 knots. Seas 1 foot or
less. A slight chance of showers and thunderstorms after midnight.
.SUNDAY...Northeast winds 5 to 10 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.
.SUNDAY NIGHT...Northeast winds 5 to 10 knots. Seas 1 foot or less,
then 1 to 2 feet after midnight. A chance of showers. A slight
chance of thunderstorms in the evening, then a chance of
thunderstorms after midnight.
.MONDAY...Northeast winds 10 to 15 knots. Seas around 2 feet. A
chance of showers and thunderstorms.
.MONDAY NIGHT...Northeast winds around 10 knots. Seas around 2 feet.
A chance of showers and thunderstorms.

Winds and seas higher in and near thunderstorms.

$$

GMZ575-577-041300-
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-
701 PM CDT Wed Sep 3 2025

.TONIGHT...East winds 5 to 10 knots. Seas around 2 feet this
evening, then 1 foot or less.
.THURSDAY...Northeast winds 5 to 10 knots. Seas around 2 feet.
.THURSDAY NIGHT...Southeast winds around 5 knots. Seas 1 foot or
less.
.FRIDAY...East winds 5 to 10 knots. Seas 1 foot or less. A slight
chance of showers and thunderstorms in the afternoon.
.FRIDAY NIGHT...Southeast winds 5 to 10 knots. Seas 1 foot or less.
A slight chance of showers.
.SATURDAY...East winds around 5 knots. Seas 1 foot or less. A slight
chance of thunderstorms. A slight chance of showers in the morning,
then a chance of showers in the afternoon.
.SATURDAY NIGHT...East winds around 5 knots. Seas 1 foot or less. A
slight chance of showers.
.SUNDAY...Northeast winds 5 to 10 knots. Seas 1 foot or less. A
chance of showers with a slight chance of thunderstorms.
.SUNDAY NIGHT...Northeast winds 5 to 10 knots. Seas 1 foot or less,
then around 2 feet after midnight. A chance of showers. A slight
chance of thunderstorms after midnight.
.MONDAY...Northeast winds 10 to 15 knots. Seas 2 to 3 feet. A chance
of showers and thunderstorms.
.MONDAY NIGHT...East winds around 10 knots. Seas around 2 feet. A
chance of showers and thunderstorms.

Winds and seas higher in and near thunderstorms.

$$

GMZ570-572-041300-
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-
701 PM CDT Wed Sep 3 2025

.TONIGHT...East winds 5 to 10 knots. Seas around 2 feet.
.THURSDAY...Northeast winds 5 to 10 knots. Seas around 2 feet.
.THURSDAY NIGHT...Southeast winds around 5 knots. Seas 1 foot or
less.
.FRIDAY...East winds 5 to 10 knots. Seas 1 foot or less.
.FRIDAY NIGHT...Southeast winds 5 to 10 knots. Seas 1 foot or less.
A slight chance of showers.
.SATURDAY...East winds around 5 knots. Seas 1 foot or less. A slight
chance of thunderstorms. A slight chance of showers in the morning,
then a chance of showers in the afternoon.
.SATURDAY NIGHT...East winds around 5 knots. Seas 1 foot or less. A
slight chance of showers. A slight chance of thunderstorms after
midnight.
.SUNDAY...Northeast winds 5 to 10 knots. Seas 1 foot or less, then
around 2 feet in the afternoon. A chance of showers and
thunderstorms.
.SUNDAY NIGHT...East winds around 10 knots. Seas around 2 feet. A
chance of showers. A slight chance of thunderstorms in the evening,
then a chance of thunderstorms after midnight.
.MONDAY...Northeast winds 10 to 15 knots. Seas around 2 feet. A
chance of showers and thunderstorms.
.MONDAY NIGHT...East winds around 10 knots. Seas around 2 feet. A
chance of showers. A slight chance of thunderstorms in the evening,
then a chance of thunderstorms after midnight.

Winds and seas higher in and near thunderstorms.

$$