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

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134
FZUS54 KLIX 200842
CWFLIX

Coastal Waters Forecast
National Weather Service New Orleans LA
342 AM CDT Sun Apr 20 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-GMZ501-202115-
342 AM CDT Sun Apr 20 2025

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

An onshore flow remain through much of next week. Winds will also
remain elevated through today as a low pressure system passes to the
north of the waters. However, the protected sounds and lakes will
see better conditions as winds and seas remain lower. Conditions will
gradually improve Monday as winds fall below 15 knots through the
week.

$$

GMZ530-202115-
Lake Pontchartrain and Lake Maurepas-
342 AM CDT Sun Apr 20 2025

...SMALL CRAFT EXERCISE CAUTION IN EFFECT UNTIL 10 AM CDT THIS
MORNING...

.TODAY...Southeast winds around 15 knots with gusts up to 20 knots.
Waves around 3 feet.
.TONIGHT...Southeast winds 10 to 15 knots. Waves 2 to 3 feet. A
slight chance of showers and thunderstorms after midnight.
.MONDAY...Southeast winds 5 to 10 knots. Waves around 2 feet. A
chance of thunderstorms. A chance of showers in the morning, then
showers likely in the afternoon.
.MONDAY NIGHT...Southeast winds 5 to 10 knots. Waves 1 foot or less.
A slight chance of showers and thunderstorms.
.TUESDAY...Southeast winds 5 to 10 knots. Waves 1 foot or less. A
chance of thunderstorms. A chance of showers in the morning, then
showers likely in the afternoon.
.TUESDAY NIGHT...Southeast winds around 5 knots. Waves 1 foot or
less.
.WEDNESDAY...Southeast winds 5 to 10 knots. Waves 1 foot or less,
then around 2 feet in the afternoon. A slight chance of showers in
the morning, then a chance of showers with a slight chance of
thunderstorms in the afternoon.
.WEDNESDAY NIGHT...Southeast winds 5 to 10 knots. Waves around
2 feet in the evening, then 1 foot or less.
.THURSDAY...Southeast winds 5 to 10 knots. Waves around 2 feet. A
slight chance of showers and thunderstorms.
.THURSDAY NIGHT...Southeast winds 5 to 10 knots. Waves around
2 feet.

Winds and waves higher in and near thunderstorms.

$$

GMZ534-202115-
Lake Borgne-
342 AM CDT Sun Apr 20 2025

...SMALL CRAFT EXERCISE CAUTION IN EFFECT UNTIL 10 AM CDT THIS
MORNING...

.TODAY...Southeast winds around 15 knots with gusts up to 20 knots.
Waves around 3 feet.
.TONIGHT...Southeast winds 10 to 15 knots. Waves 2 to 3 feet. A
slight chance of showers and thunderstorms after midnight.
.MONDAY...Southeast winds around 10 knots. Waves around 2 feet. A
chance of showers. A slight chance of thunderstorms in the morning,
then a chance of thunderstorms in the afternoon.
.MONDAY NIGHT...Southeast winds 5 to 10 knots. Waves 1 foot or less.
A slight chance of showers and thunderstorms.
.TUESDAY...Southeast winds 5 to 10 knots. Waves 1 foot or less, then
around 2 feet in the afternoon. A chance of showers. A slight chance
of thunderstorms in the morning, then a chance of thunderstorms in
the afternoon.
.TUESDAY NIGHT...Southeast winds 5 to 10 knots. Waves 1 foot or
less.
.WEDNESDAY...Southeast winds 5 to 10 knots. Waves 1 foot or less,
then around 2 feet in the afternoon. A slight chance of
thunderstorms. A slight chance of showers in the morning, then a
chance of showers in the afternoon.
.WEDNESDAY NIGHT...Southeast winds 5 to 10 knots. Waves 1 foot or
less.
.THURSDAY...Southeast winds 5 to 10 knots. Waves around 2 feet. A
slight chance of showers and thunderstorms.
.THURSDAY NIGHT...Southeast winds around 10 knots. Waves around
2 feet.

Winds and waves higher in and near thunderstorms.

$$

GMZ532-202115-
Mississippi Sound-
342 AM CDT Sun Apr 20 2025

...SMALL CRAFT EXERCISE CAUTION IN EFFECT UNTIL 10 AM CDT THIS
MORNING...

.TODAY...Southeast winds 15 to 20 knots. Waves 3 to 4 feet.
.TONIGHT...Southeast winds 10 to 15 knots. Waves 2 to 3 feet. A
slight chance of showers after midnight.
.MONDAY...Southeast winds around 10 knots. Waves around 2 feet. A
chance of showers. A slight chance of thunderstorms in the
afternoon.
.MONDAY NIGHT...Southeast winds 5 to 10 knots. Waves around 2 feet.
A slight chance of thunderstorms. A slight chance of showers in the
evening, then a chance of showers after midnight.
.TUESDAY...Southeast winds 5 to 10 knots. Waves around 2 feet. A
chance of showers. A slight chance of thunderstorms in the morning,
then a chance of thunderstorms in the afternoon.
.TUESDAY NIGHT...Southeast winds 5 to 10 knots. Waves 1 to 2 feet in
the evening, then 1 foot or less.
.WEDNESDAY...Southeast winds 5 to 10 knots. Waves around 2 feet. A
slight chance of thunderstorms. A slight chance of showers in the
morning, then a chance of showers in the afternoon.
.WEDNESDAY NIGHT...Southeast winds 5 to 10 knots. Waves 1 to 2 feet.
.THURSDAY...Southeast winds 5 to 10 knots. Waves around 2 feet. A
slight chance of showers and thunderstorms in the afternoon.
.THURSDAY NIGHT...Southeast winds 5 to 10 knots. Waves around
2 feet.

Winds and waves higher in and near thunderstorms.

$$

GMZ536-538-202115-
Chandeleur Sound-Breton Sound-
342 AM CDT Sun Apr 20 2025

...SMALL CRAFT EXERCISE CAUTION IN EFFECT UNTIL 10 AM CDT THIS
MORNING...

.TODAY...Southeast winds 15 to 20 knots. Waves 3 to 4 feet.
.TONIGHT...Southeast winds 10 to 15 knots. Waves 2 to 3 feet. A
slight chance of showers after midnight.
.MONDAY...Southeast winds around 10 knots. Waves around 2 feet. A
chance of showers. A slight chance of thunderstorms in the
afternoon.
.MONDAY NIGHT...Southeast winds 5 to 10 knots. Waves around 2 feet.
A slight chance of thunderstorms. A slight chance of showers in the
evening, then a chance of showers after midnight.
.TUESDAY...Southeast winds 5 to 10 knots. Waves 1 foot or less, then
around 2 feet in the afternoon. A chance of showers. A slight chance
of thunderstorms in the morning, then a chance of thunderstorms in
the afternoon.
.TUESDAY NIGHT...Southeast winds 5 to 10 knots. Waves 1 foot or
less.
.WEDNESDAY...Southeast winds 5 to 10 knots. Waves around 2 feet. A
slight chance of showers and thunderstorms.
.WEDNESDAY NIGHT...Southeast winds around 10 knots. Waves around
2 feet.
.THURSDAY...Southeast winds around 10 knots. Waves around 2 feet.
.THURSDAY NIGHT...Southeast winds around 10 knots. Waves around
2 feet.

Winds and waves higher in and near thunderstorms.

$$

GMZ557-202115-
Coastal waters from Pascagoula Mississippi to Stake Island out 20 NM-
342 AM CDT Sun Apr 20 2025

...SMALL CRAFT EXERCISE CAUTION IN EFFECT UNTIL 10 AM CDT THIS
MORNING...

.TODAY...Southeast winds 15 to 20 knots, diminishing to 10 to
15 knots with gusts up to 20 knots this afternoon. Seas 3 to 5 feet,
occasionally to 6 feet. Wave Detail: Southeast 5 feet at 8 seconds.
.TONIGHT...Southeast winds 10 to 15 knots with gusts up to 20 knots.
Seas 3 to 5 feet, occasionally to 6 feet. Wave Detail: Southeast
5 feet at 8 seconds. A slight chance of showers after midnight.
.MONDAY...Southeast winds around 10 knots. Seas 3 to 5 feet,
occasionally to 6 feet. Wave Detail: Southeast 5 feet at 8 seconds.
A slight chance of showers. A slight chance of thunderstorms in the
afternoon.
.MONDAY NIGHT...Southeast winds around 10 knots. Seas 3 to 4 feet,
occasionally to 5 feet. Wave Detail: Southeast 4 feet at 7 seconds.
A chance of showers with a slight chance of thunderstorms after
midnight.
.TUESDAY...Southeast winds around 10 knots. Seas 2 to 4 feet,
occasionally to 5 feet. Wave Detail: Southeast 4 feet at 8 seconds.
A slight chance of thunderstorms. A chance of showers, mainly in the
morning.
.TUESDAY NIGHT...Southeast winds 5 to 10 knots. Seas 2 to 3 feet.
Wave Detail: Southeast 3 feet at 7 seconds.
.WEDNESDAY...Southeast winds 5 to 10 knots. Seas 2 to 3 feet. Wave
Detail: Southeast 3 feet at 7 seconds. A slight chance of showers
and thunderstorms.
.WEDNESDAY NIGHT...Southeast winds around 10 knots. Seas 2 to
3 feet. Wave Detail: Southeast 3 feet at 7 seconds.
.THURSDAY...Southeast winds around 10 knots. Seas 2 to 3 feet. Wave
Detail: Southeast 3 feet at 7 seconds.
.THURSDAY NIGHT...Southeast winds around 10 knots. Seas 2 to 4 feet,
occasionally to 5 feet. Wave Detail: Southeast 4 feet at 7 seconds.

Winds and seas higher in and near thunderstorms.

$$

GMZ555-202115-
Coastal Waters from Boothville LA to Southwest Pass of the
Mississippi River out 20 nm-
342 AM CDT Sun Apr 20 2025

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 10 AM CDT THIS MORNING...

.TODAY...Southeast winds 20 to 25 knots, diminishing to 10 to 15
knots late. Seas 4 to 6 feet, occasionally to 8 feet. Wave Detail:
Southeast 6 feet at 8 seconds and southwest 1 foot at 7 seconds.
.TONIGHT...Southeast winds 10 to 15 knots with gusts up to 20 knots.
Seas 4 to 6 feet, occasionally to 8 feet. Wave Detail: Southeast
6 feet at 8 seconds. A slight chance of showers after midnight.
.MONDAY...Southeast winds 5 to 10 knots. Seas 3 to 5 feet,
occasionally to 6 feet. Wave Detail: Southeast 5 feet at 8 seconds
and southwest 1 foot at 7 seconds. A slight chance of showers. A
slight chance of thunderstorms in the afternoon.
.MONDAY NIGHT...Southeast winds 5 to 10 knots. Seas 3 to 5 feet,
occasionally to 6 feet. Wave Detail: South 4 feet at 7 seconds. A
slight chance of showers and thunderstorms.
.TUESDAY...Southeast winds 5 to 10 knots. Seas 3 to 5 feet,
occasionally to 6 feet. Wave Detail: South 4 feet at 7 seconds. A
slight chance of thunderstorms. A chance of showers, mainly in the
morning.
.TUESDAY NIGHT...Southeast winds 5 to 10 knots. Seas 2 to 4 feet,
occasionally to 5 feet. Wave Detail: South 3 feet at 7 seconds.
.WEDNESDAY...Southeast winds 5 to 10 knots. Seas 2 to 4 feet,
occasionally to 5 feet. Wave Detail: South 4 feet at 7 seconds. A
slight chance of showers and thunderstorms.
.WEDNESDAY NIGHT...Southeast winds around 10 knots. Seas 2 to
4 feet, occasionally to 5 feet. Wave Detail: South 4 feet at
7 seconds.
.THURSDAY...Southeast winds around 10 knots. Seas 2 to 4 feet,
occasionally to 5 feet. Wave Detail: South 4 feet at 7 seconds.
.THURSDAY NIGHT...Southeast winds around 10 knots. Seas 3 to 5 feet,
occasionally to 6 feet. Wave Detail: South 5 feet at 7 seconds.

Winds and seas higher in and near thunderstorms.

$$

GMZ550-552-202115-
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-
342 AM CDT Sun Apr 20 2025

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 10 AM CDT THIS MORNING...

.TODAY...Southeast winds around 20 knots with gusts up to 25 knots.
Seas 3 to 5 feet, occasionally to 6 feet. Wave Detail: Southeast 5
feet at 8 seconds.
.TONIGHT...Southeast winds 10 to 15 knots with gusts up to 20 knots.
Seas 3 to 5 feet, occasionally to 6 feet. Wave Detail: Southeast
5 feet at 8 seconds. A slight chance of showers after midnight.
.MONDAY...Southeast winds 5 to 10 knots. Seas 2 to 4 feet,
occasionally to 5 feet. Wave Detail: Southeast 4 feet at 9 seconds
and south 2 feet at 6 seconds. A chance of showers and
thunderstorms, mainly in the morning.
.MONDAY NIGHT...Southeast winds 5 to 10 knots. Seas 2 to 4 feet,
occasionally to 5 feet. Wave Detail: South 4 feet at 7 seconds. A
slight chance of showers. A slight chance of thunderstorms after
midnight.
.TUESDAY...Southeast winds 5 to 10 knots. Seas 2 to 4 feet,
occasionally to 5 feet. Wave Detail: South 3 feet at 7 seconds. A
slight chance of thunderstorms. A chance of showers, mainly in the
morning.
.TUESDAY NIGHT...Southeast winds 5 to 10 knots. Seas 2 to 4 feet,
occasionally to 5 feet. Wave Detail: South 3 feet at 7 seconds.
.WEDNESDAY...Southeast winds around 10 knots. Seas 2 to 4 feet,
occasionally to 5 feet. Wave Detail: South 3 feet at 7 seconds. A
slight chance of showers and thunderstorms.
.WEDNESDAY NIGHT...Southeast winds around 10 knots. Seas 2 to
4 feet, occasionally to 5 feet. Wave Detail: South 3 feet at
7 seconds.
.THURSDAY...Southeast winds around 10 knots. Seas 2 to 4 feet,
occasionally to 5 feet. Wave Detail: South 4 feet at 7 seconds.
.THURSDAY NIGHT...Southeast winds 10 to 15 knots. Seas 2 to 4 feet,
occasionally to 5 feet. Wave Detail: Southeast 4 feet at 7 seconds.

Winds and seas higher in and near thunderstorms.

$$

GMZ577-202115-
Coastal waters from Pascagoula Mississippi to Stake Island Louisiana
out 20 to 60 NM-
342 AM CDT Sun Apr 20 2025

...SMALL CRAFT EXERCISE CAUTION IN EFFECT UNTIL 10 AM CDT THIS
MORNING...

.TODAY...Southeast winds around 20 knots with gusts up to 25 knots.
Seas 5 to 6 feet, occasionally to 8 feet. Wave Detail: Southeast 6
feet at 8 seconds and southwest 1 foot at 7 seconds.
.TONIGHT...Southeast winds 10 to 15 knots with gusts up to 20 knots.
Seas around 6 feet, occasionally to 8 feet. Wave Detail: Southeast
6 feet at 9 seconds. A slight chance of showers after midnight.
.MONDAY...Southeast winds around 10 knots. Seas 4 to 5 feet,
occasionally to 6 feet. Wave Detail: South 5 feet at 7 seconds. A
slight chance of showers.
.MONDAY NIGHT...Southeast winds around 10 knots. Seas 4 to 5 feet,
occasionally to 6 feet. Wave Detail: South 4 feet at 7 seconds. A
slight chance of thunderstorms. A slight chance of showers in the
evening, then a chance of showers after midnight.
.TUESDAY...Southeast winds around 10 knots. Seas around 4 feet,
occasionally to 5 feet. Wave Detail: South 4 feet at 7 seconds. A
slight chance of thunderstorms. A chance of showers, mainly in the
morning.
.TUESDAY NIGHT...Southeast winds 5 to 10 knots. Seas around 3 feet.
Wave Detail: South 3 feet at 7 seconds.
.WEDNESDAY...Southeast winds around 10 knots. Seas 3 to 4 feet,
occasionally to 5 feet. Wave Detail: South 3 feet at 7 seconds.
.WEDNESDAY NIGHT...Southeast winds around 10 knots. Seas 3 to
4 feet, occasionally to 5 feet. Wave Detail: South 3 feet at
7 seconds.
.THURSDAY...Southeast winds 5 to 10 knots. Seas 3 to 4 feet,
occasionally to 5 feet. Wave Detail: Southeast 4 feet at 7 seconds.
.THURSDAY NIGHT...Southeast winds around 10 knots. Seas 3 to 4 feet,
occasionally to 5 feet. Wave Detail: South 4 feet at 7 seconds.

Winds and seas higher in and near thunderstorms.

$$

GMZ575-202115-
Coastal Waters from Stake Island LA to Southwest Pass of the
Mississippi River from 20 to 60 nm-
342 AM CDT Sun Apr 20 2025

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 10 AM CDT THIS MORNING...

.TODAY...Southeast winds around 20 knots with gusts up to 25 knots.
Seas around 6 feet, occasionally to 8 feet. Wave Detail: Southeast 6
feet at 8 seconds and southwest 1 foot at 7 seconds.
.TONIGHT...Southeast winds 10 to 15 knots with gusts up to 20 knots.
Seas 6 to 7 feet, occasionally to 9 feet. Wave Detail: Southeast
7 feet at 9 seconds. A slight chance of showers after midnight.
.MONDAY...Southeast winds around 10 knots. Seas 5 to 6 feet,
occasionally to 8 feet. Wave Detail: South 6 feet at 7 seconds. A
slight chance of showers. A slight chance of thunderstorms in the
afternoon.
.MONDAY NIGHT...Southeast winds 5 to 10 knots. Seas 4 to 5 feet,
occasionally to 6 feet. Wave Detail: South 5 feet at 7 seconds. A
slight chance of showers and thunderstorms.
.TUESDAY...Southeast winds 5 to 10 knots. Seas 4 to 5 feet,
occasionally to 6 feet. Wave Detail: South 5 feet at 7 seconds. A
slight chance of showers and thunderstorms in the morning.
.TUESDAY NIGHT...Southeast winds around 10 knots. Seas 3 to 4 feet,
occasionally to 5 feet. Wave Detail: South 4 feet at 7 seconds.
.WEDNESDAY...Southeast winds around 10 knots. Seas 3 to 4 feet,
occasionally to 5 feet. Wave Detail: Southeast 4 feet at 8 seconds
and southwest 1 foot at 5 seconds. A slight chance of showers and
thunderstorms in the afternoon.
.WEDNESDAY NIGHT...Southeast winds around 10 knots. Seas 3 to
4 feet, occasionally to 5 feet. Wave Detail: South 4 feet at
6 seconds.
.THURSDAY...Southeast winds around 10 knots. Seas around 4 feet,
occasionally to 5 feet. Wave Detail: South 4 feet at 6 seconds.
.THURSDAY NIGHT...Southeast winds around 10 knots. Seas 4 to 5 feet,
occasionally to 6 feet. Wave Detail: Southeast 5 feet at 7 seconds.

Winds and seas higher in and near thunderstorms.

$$

GMZ570-572-202115-
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-
342 AM CDT Sun Apr 20 2025

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 10 AM CDT THIS MORNING...

.TODAY...Southeast winds around 20 knots with gusts up to 25 knots.
Seas 5 to 6 feet, occasionally to 8 feet. Wave Detail: Southeast 6
feet at 8 seconds and south 2 feet at 7 seconds.
.TONIGHT...Southeast winds 10 to 15 knots with gusts up to 20 knots.
Seas 5 to 6 feet, occasionally to 8 feet. Wave Detail: Southeast
6 feet at 8 seconds and south 2 feet at 8 seconds. A slight chance
of showers after midnight.
.MONDAY...Southeast winds around 10 knots. Seas 5 to 6 feet,
occasionally to 8 feet. Wave Detail: Southeast 6 feet at 9 seconds
and south 2 feet at 7 seconds. A slight chance of thunderstorms. A
chance of showers, mainly in the morning.
.MONDAY NIGHT...Southeast winds around 10 knots. Seas 4 to 5 feet,
occasionally to 6 feet. Wave Detail: Southeast 4 feet at 8 seconds
and south 2 feet at 7 seconds. A slight chance of showers and
thunderstorms.
.TUESDAY...Southeast winds around 10 knots. Seas 4 to 5 feet,
occasionally to 6 feet. Wave Detail: Southeast 4 feet at 8 seconds
and south 2 feet at 7 seconds. A slight chance of showers and
thunderstorms in the morning.
.TUESDAY NIGHT...Southeast winds around 10 knots. Seas around
4 feet, occasionally to 5 feet. Wave Detail: South 4 feet at
7 seconds.
.WEDNESDAY...Southeast winds around 10 knots. Seas around 4 feet,
occasionally to 5 feet. Wave Detail: South 4 feet at 7 seconds. A
slight chance of showers and thunderstorms.
.WEDNESDAY NIGHT...Southeast winds 10 to 15 knots. Seas around
4 feet, occasionally to 5 feet. Wave Detail: South 4 feet at
7 seconds.
.THURSDAY...Southeast winds 10 to 15 knots. Seas 4 to 5 feet,
occasionally to 6 feet. Wave Detail: South 4 feet at 7 seconds.
.THURSDAY NIGHT...Southeast winds 10 to 15 knots. Seas 4 to 5 feet,
occasionally to 6 feet. Wave Detail: South 5 feet at 7 seconds.

Winds and seas higher in and near thunderstorms.

$$