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

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FZUS54 KLIX 121520
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Coastal Waters Forecast
National Weather Service New Orleans LA
1020 AM CDT Wed Mar 12 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-GMZ501-130415-
1020 AM CDT Wed Mar 12 2025

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

Stronger winds and small craft advisory conditions are expected to
develop by the end of this week as a series of low pressure systems
passes north of the coast.

$$

GMZ530-130415-
Lake Pontchartrain and Lake Maurepas-
1020 AM CDT Wed Mar 12 2025

.TODAY...South winds 5 to 10 knots. Waves 1 to 2 feet.
.TONIGHT...South winds 5 to 10 knots. Waves around 2 feet.
.THURSDAY...Southwest winds 5 to 10 knots. Waves around 2 feet.
.THURSDAY NIGHT...South winds 5 to 10 knots. Waves around 2 feet.
.FRIDAY...South winds 10 to 15 knots with gusts up to 20 knots,
increasing to 20 to 25 knots with gusts up to 30 knots in the
afternoon. Waves 2 to 4 feet, building to 4 to 5 feet in the
afternoon.
.FRIDAY NIGHT...South winds 20 to 25 knots with gusts up to
30 knots. Waves 4 to 5 feet. A slight chance of showers and
thunderstorms in the evening.
.SATURDAY...South winds 20 to 25 knots, increasing to 25 to 30 knots
in the afternoon. Waves 4 to 5 feet. A chance of thunderstorms.
Showers likely.
.SATURDAY NIGHT...Southwest winds 20 to 25 knots, becoming west
10 to 15 knots after midnight. Waves 2 to 4 feet. A chance of
showers in the evening.
.SUNDAY...Northwest winds 10 to 15 knots. Waves 2 to 3 feet.
.SUNDAY NIGHT...North winds 10 to 15 knots. Waves 2 to 3 feet.

Winds and waves higher in and near thunderstorms.

$$

GMZ534-130415-
Lake Borgne-
1020 AM CDT Wed Mar 12 2025

.TODAY...South winds around 5 knots, increasing to around 10 knots
this afternoon. Waves 1 foot or less, then around 2 feet this
afternoon.
.TONIGHT...South winds 5 to 10 knots. Waves around 2 feet in the
evening, then 1 foot or less.
.THURSDAY...Southwest winds 5 to 10 knots. Waves around 2 feet.
.THURSDAY NIGHT...South winds 5 to 10 knots. Waves around 2 feet in
the evening, then 1 foot or less.
.FRIDAY...South winds 10 to 15 knots, increasing to 15 to 20 knots
in the afternoon. Waves 2 to 3 feet, building to 4 feet in the
afternoon.
.FRIDAY NIGHT...South winds 15 to 20 knots with gusts up to
25 knots. Waves around 4 feet. A slight chance of showers and
thunderstorms in the evening.
.SATURDAY...South winds 20 to 25 knots, increasing to 25 to 30 knots
in the afternoon. Waves 4 to 6 feet. A chance of thunderstorms. A
chance of showers in the morning, then showers likely in the
afternoon.
.SATURDAY NIGHT...Southwest winds 20 to 25 knots, becoming west
10 to 15 knots after midnight. Waves 3 to 4 feet, subsiding to
2 feet after midnight. A chance of showers with a slight chance of
thunderstorms in the evening, then a slight chance of showers after
midnight.
.SUNDAY...Northwest winds around 10 knots. Waves around 2 feet. A
slight chance of showers in the morning.
.SUNDAY NIGHT...North winds 10 to 15 knots. Waves 2 to 3 feet.

Winds and waves higher in and near thunderstorms.

$$

GMZ532-130415-
Mississippi Sound-
1020 AM CDT Wed Mar 12 2025

.TODAY...Southwest winds around 5 knots, becoming south this
afternoon. Waves 1 foot or less, then around 2 feet this afternoon.
.TONIGHT...South winds around 10 knots. Waves around 2 feet.
.THURSDAY...South winds 5 to 10 knots. Waves around 2 feet.
.THURSDAY NIGHT...South winds 5 to 10 knots. Waves around 2 feet.
.FRIDAY...South winds 10 to 15 knots, becoming southeast 15 to
20 knots in the afternoon. Waves 2 to 4 feet.
.FRIDAY NIGHT...South winds 20 to 25 knots with gusts up to
30 knots. Waves around 4 feet. A chance of showers and
thunderstorms, mainly in the evening.
.SATURDAY...South winds 20 to 25 knots, increasing to 25 to 30 knots
in the afternoon. Waves 4 to 5 feet. A chance of thunderstorms. A
chance of showers in the morning, then showers likely in the
afternoon.
.SATURDAY NIGHT...Southwest winds 25 to 30 knots, becoming west
15 to 20 knots after midnight. Waves 4 to 5 feet, subsiding to 2 to
3 feet after midnight. A chance of showers and thunderstorms in the
evening, then a slight chance of showers after midnight.
.SUNDAY...Northwest winds around 10 knots. Waves around 2 feet. A
slight chance of showers.
.SUNDAY NIGHT...Northwest winds 10 to 15 knots. Waves 2 to 3 feet.

Winds and waves higher in and near thunderstorms.

$$

GMZ536-538-130415-
Chandeleur Sound-Breton Sound-
1020 AM CDT Wed Mar 12 2025

.TODAY...Southwest winds 5 to 10 knots, becoming south late. Waves
1 foot or less.
.TONIGHT...South winds around 10 knots. Waves around 2 feet.
.THURSDAY...Southwest winds around 10 knots. Waves around 2 feet.
.THURSDAY NIGHT...South winds 5 to 10 knots. Waves around 2 feet in
the evening, then 1 foot or less.
.FRIDAY...South winds 10 to 15 knots, increasing to 15 to 20 knots
in the afternoon. Waves 2 to 4 feet.
.FRIDAY NIGHT...South winds 20 to 25 knots with gusts up to
30 knots. Waves 4 to 5 feet. A slight chance of showers and
thunderstorms in the evening.
.SATURDAY...South winds 25 to 30 knots. Waves 5 to 7 feet. A chance
of showers and thunderstorms.
.SATURDAY NIGHT...Southwest winds 25 to 30 knots, becoming west
15 to 20 knots after midnight. Waves 4 to 6 feet, subsiding to 2 to
3 feet after midnight. A chance of showers and thunderstorms in the
evening, then a slight chance of showers after midnight.
.SUNDAY...Northwest winds around 10 knots. Waves around 2 feet. A
slight chance of showers.
.SUNDAY NIGHT...North winds 10 to 15 knots. Waves 2 to 4 feet.

Winds and waves higher in and near thunderstorms.

$$

GMZ555-557-130415-
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-
1020 AM CDT Wed Mar 12 2025

.TODAY...Southwest winds 5 to 10 knots, becoming south late. Seas
1 foot or less, then around 2 feet this afternoon. Wave Detail:
Southwest 1 foot at 3 seconds, becoming south 2 feet at 3 seconds.
.TONIGHT...South winds around 10 knots. Seas around 2 feet. Wave
Detail: South 2 feet at 4 seconds.
.THURSDAY...Southwest winds around 10 knots. Seas 2 to 3 feet. Wave
Detail: South 2 feet at 5 seconds.
.THURSDAY NIGHT...South winds 5 to 10 knots. Seas around 2 feet.
Wave Detail: South 2 feet at 5 seconds.
.FRIDAY...South winds 10 to 15 knots, increasing to 15 to 20 knots
in the afternoon. Seas 2 to 3 feet. Wave Detail: South 3 feet at
5 seconds.
.FRIDAY NIGHT...South winds 15 to 20 knots, increasing to 20 to
25 knots after midnight. Seas 3 to 5 feet, occasionally to 6 feet.
Wave Detail: South 5 feet at 6 seconds. A slight chance of showers
and thunderstorms in the evening.
.SATURDAY...South winds 20 to 25 knots, increasing to 25 to 30 knots
in the afternoon. Seas 5 to 7 feet, occasionally to 9 feet, building
to 6 to 9 feet, occasionally to 11 feet in the afternoon. Wave
Detail: South 7 feet at 6 seconds, becoming south 8 feet at
7 seconds. A chance of showers. A slight chance of thunderstorms in
the morning, then a chance of thunderstorms in the afternoon.
.SATURDAY NIGHT...Southwest winds 20 to 25 knots, becoming west
15 to 20 knots after midnight. Seas 6 to 9 feet, occasionally to
11 feet, subsiding to 5 to 7 feet, occasionally to 9 feet after
midnight. Wave Detail: South 8 feet at 8 seconds, becoming south
7 feet at 8 seconds. A chance of thunderstorms in the evening. A
chance of showers.
.SUNDAY...Northwest winds 10 to 15 knots. Seas 3 to 5 feet,
occasionally to 6 feet. Wave Detail: South 5 feet at 8 seconds. A
chance of showers, mainly in the morning.
.SUNDAY NIGHT...Northwest winds 10 to 15 knots, becoming north 15 to
20 knots after midnight. Seas 4 to 6 feet, occasionally to 8 feet.
Wave Detail: South 5 feet at 8 seconds and northwest 2 feet at
3 seconds.

Winds and seas higher in and near thunderstorms.

$$

GMZ550-552-130415-
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-
1020 AM CDT Wed Mar 12 2025

.TODAY...South winds 5 to 10 knots. Seas 1 to 2 feet. Wave Detail:
South 2 feet at 4 seconds.
.TONIGHT...South winds 5 to 10 knots. Seas 1 to 2 feet. Wave Detail:
South 2 feet at 4 seconds.
.THURSDAY...Southwest winds around 10 knots. Seas 2 to 3 feet. Wave
Detail: Southwest 3 feet at 5 seconds.
.THURSDAY NIGHT...South winds 5 to 10 knots. Seas 1 to 2 feet. Wave
Detail: Southwest 2 feet at 6 seconds.
.FRIDAY...South winds 10 to 15 knots, increasing to 15 to 20 knots
in the afternoon. Seas 2 to 3 feet. Wave Detail: South 3 feet at
5 seconds.
.FRIDAY NIGHT...South winds 20 to 25 knots with gusts up to
30 knots. Seas 3 to 5 feet, occasionally to 6 feet. Wave Detail:
South 5 feet at 6 seconds.
.SATURDAY...South winds 20 to 25 knots, increasing to 25 to 30 knots
in the afternoon. Seas 5 to 8 feet, occasionally to 10 feet. Wave
Detail: South 7 feet at 8 seconds. A chance of showers. A slight
chance of thunderstorms in the morning, then a chance of
thunderstorms in the afternoon.
.SATURDAY NIGHT...Southwest winds 20 to 25 knots, becoming west
10 to 15 knots after midnight. Seas 5 to 7 feet, occasionally to
9 feet, subsiding to 3 to 5 feet, occasionally to 6 feet after
midnight. Wave Detail: South 7 feet at 8 seconds, becoming south
5 feet at 9 seconds. A chance of showers and thunderstorms in the
evening, then a slight chance of showers after midnight.
.SUNDAY...Northwest winds 10 to 15 knots. Seas 3 to 5 feet,
occasionally to 6 feet. Wave Detail: South 5 feet at 8 seconds. A
slight chance of showers.
.SUNDAY NIGHT...Northwest winds 10 to 15 knots, becoming north 15 to
20 knots after midnight. Seas 2 to 4 feet, occasionally to 5 feet.
Wave Detail: South 4 feet at 9 seconds and northwest 2 feet at
2 seconds.

Winds and seas higher in and near thunderstorms.

$$

GMZ575-577-130415-
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-
1020 AM CDT Wed Mar 12 2025

.TODAY...Southwest winds 5 to 10 knots. Seas 1 foot or less, then
around 2 feet this afternoon. Wave Detail: Southwest 1 foot at
4 seconds, becoming south 2 feet at 3 seconds.
.TONIGHT...South winds 10 to 15 knots. Seas 2 to 3 feet. Wave
Detail: South 2 feet at 4 seconds.
.THURSDAY...Southwest winds around 10 knots. Seas 2 to 3 feet. Wave
Detail: South 3 feet at 5 seconds. A slight chance of showers.
.THURSDAY NIGHT...South winds 5 to 10 knots. Seas around 2 feet.
Wave Detail: Southwest 2 feet at 6 seconds.
.FRIDAY...South winds 10 to 15 knots, increasing to 15 to 20 knots
in the afternoon. Seas 2 to 3 feet. Wave Detail: South 3 feet at
5 seconds.
.FRIDAY NIGHT...South winds 15 to 20 knots, increasing to 20 to
25 knots after midnight. Seas 3 to 4 feet, occasionally to 5 feet,
building to 5 to 6 feet, occasionally to 8 feet after midnight. Wave
Detail: South 4 feet at 5 seconds, becoming south 6 feet at
6 seconds.
.SATURDAY...South winds 25 to 30 knots. Seas 6 to 8 feet,
occasionally to 10 feet, building to 8 to 10 feet, occasionally to
13 feet in the afternoon. Wave Detail: South 7 feet at 7 seconds,
becoming south 9 feet at 8 seconds. A slight chance of showers and
thunderstorms.
.SATURDAY NIGHT...Southwest winds 20 to 25 knots, becoming west
15 to 20 knots after midnight. Seas 9 to 10 feet, occasionally to
13 feet, subsiding to 7 to 9 feet, occasionally to 11 feet after
midnight. Wave Detail: South 9 feet at 9 seconds, becoming south
8 feet at 9 seconds. Showers likely with a chance of thunderstorms
in the evening, then a chance of showers with a slight chance of
thunderstorms after midnight.
.SUNDAY...Northwest winds 10 to 15 knots. Seas 5 to 7 feet,
occasionally to 9 feet. Wave Detail: South 7 feet at 8 seconds. A
chance of showers. A slight chance of thunderstorms in the
afternoon.
.SUNDAY NIGHT...North winds 15 to 20 knots. Seas 5 to 6 feet,
occasionally to 8 feet. Wave Detail: South 6 feet at 8 seconds and
northwest 3 feet at 4 seconds. A slight chance of showers in the
evening.

Winds and seas higher in and near thunderstorms.

$$

GMZ570-572-130415-
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-
1020 AM CDT Wed Mar 12 2025

.TODAY...South winds around 10 knots. Seas around 2 feet. Wave
Detail: South 2 feet at 4 seconds.
.TONIGHT...South winds 10 to 15 knots. Seas 2 to 3 feet. Wave
Detail: South 3 feet at 5 seconds.
.THURSDAY...Southwest winds 10 to 15 knots. Seas around 3 feet. Wave
Detail: Southwest 3 feet at 5 seconds.
.THURSDAY NIGHT...Southwest winds 5 to 10 knots, becoming south
after midnight. Seas 2 to 3 feet. Wave Detail: Southwest 3 feet at
6 seconds.
.FRIDAY...South winds 15 to 20 knots with gusts up to 25 knots. Seas
2 to 4 feet, occasionally to 5 feet. Wave Detail: Southwest 4 feet
at 5 seconds.
.FRIDAY NIGHT...South winds 20 to 25 knots with gusts up to
30 knots. Seas 4 to 6 feet, occasionally to 8 feet. Wave Detail:
South 6 feet at 6 seconds.
.SATURDAY...South winds 25 to 30 knots. Seas 7 to 8 feet,
occasionally to 10 feet, building to 8 to 10 feet, occasionally to
13 feet in the afternoon. Wave Detail: South 8 feet at 7 seconds,
becoming south 9 feet at 8 seconds. A slight chance of
thunderstorms. A slight chance of showers in the morning, then a
chance of showers in the afternoon.
.SATURDAY NIGHT...Southwest winds 20 to 25 knots, becoming west
10 to 15 knots after midnight. Seas 8 to 10 feet, occasionally to
13 feet, subsiding to 6 to 8 feet, occasionally to 10 feet after
midnight. Wave Detail: South 9 feet at 9 seconds, becoming south
8 feet at 9 seconds. A chance of showers and thunderstorms in the
evening, then a slight chance of showers after midnight.
.SUNDAY...Northwest winds 10 to 15 knots. Seas 5 to 6 feet,
occasionally to 8 feet. Wave Detail: South 6 feet at 8 seconds and
northwest 2 feet at 4 seconds. A slight chance of showers.
.SUNDAY NIGHT...North winds 15 to 20 knots. Seas 5 to 6 feet,
occasionally to 8 feet. Wave Detail: Southeast 5 feet at 9 seconds
and northwest 3 feet at 4 seconds.

Winds and seas higher in and near thunderstorms.

$$