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

Home |  Current Version |  Previous Version |  Text Only |  Print | Product List |  Glossary On
Versions: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31
516
FZUS54 KLIX 111442
CWFLIX

Coastal Waters Forecast
National Weather Service New Orleans LA
942 AM CDT Tue Mar 11 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-GMZ501-120315-
942 AM CDT Tue Mar 11 2025

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

High pressure builds into the region early this week, resulting in
calmer conditions Tuesday into early Wednesday. Stronger winds and
small craft advisory conditions are expected to develop by the end of
the week as a series of low pressure systems passes north the
waters.

$$

GMZ530-120315-
Lake Pontchartrain and Lake Maurepas-
942 AM CDT Tue Mar 11 2025

.REST OF TODAY...Southwest winds around 5 knots. Waves 1 foot or
less.
.TONIGHT...Southwest winds 5 to 10 knots. Waves around 2 feet in the
evening, then 1 foot or less.
.WEDNESDAY...South winds 5 to 10 knots, increasing to 10 to 15 knots
in the afternoon. Waves 1 to 2 feet, building to 2 to 3 feet in the
afternoon.
.WEDNESDAY NIGHT...South winds 10 to 15 knots. Waves 2 to 3 feet.
.THURSDAY...Southwest winds 10 to 15 knots with gusts up to
20 knots. Waves 2 to 3 feet.
.THURSDAY NIGHT...Southwest winds 5 to 10 knots. Waves around
2 feet.
.FRIDAY...South winds 10 to 15 knots, increasing to 20 to 25 knots
in the afternoon. Waves 2 to 3 feet, building to 4 feet in the
afternoon.
.FRIDAY NIGHT...South winds 20 to 25 knots, diminishing to 15 to
20 knots after midnight. Waves 3 to 4 feet. A slight chance of
thunderstorms in the evening. A slight chance of showers.
.SATURDAY...South winds 15 to 20 knots. Waves 3 to 4 feet. Showers
likely with a chance of thunderstorms.
.SATURDAY NIGHT...Southwest winds 15 to 20 knots, becoming west
10 to 15 knots after midnight. Waves 2 to 4 feet. A chance of
showers and thunderstorms in the evening.

Winds and waves higher in and near thunderstorms.

$$

GMZ534-120315-
Lake Borgne-
942 AM CDT Tue Mar 11 2025

.REST OF TODAY...West winds around 5 knots, becoming south late.
Waves 1 foot or less.
.TONIGHT...Southwest winds 5 to 10 knots. Waves 1 foot or less.
.WEDNESDAY...South winds around 5 knots, increasing to around
10 knots in the afternoon. Waves 1 foot or less, then around 2 feet
in the afternoon.
.WEDNESDAY NIGHT...South winds around 10 knots. Waves around 2 feet.
.THURSDAY...Southwest winds 5 to 10 knots, increasing to 10 to
15 knots with gusts up to 20 knots in the afternoon. Waves around
2 feet.
.THURSDAY NIGHT...Southwest 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 15 to 20 knots. Waves 3 to 4 feet. A
slight chance of showers and thunderstorms.
.SATURDAY...South winds 15 to 20 knots, increasing to 20 to 25 knots
in the afternoon. Waves 3 to 4 feet. Showers likely with a chance of
thunderstorms.
.SATURDAY NIGHT...South winds 15 to 20 knots, becoming southwest
10 to 15 knots after midnight. Waves 2 to 4 feet. A chance of
showers and thunderstorms in the evening.

Winds and waves higher in and near thunderstorms.

$$

GMZ532-120315-
Mississippi Sound-
942 AM CDT Tue Mar 11 2025

.REST OF TODAY...West winds around 5 knots, becoming south late.
Waves 1 foot or less, then around 2 feet this afternoon.
.TONIGHT...Southwest winds 5 to 10 knots. Waves 1 to 2 feet.
.WEDNESDAY...South winds 5 to 10 knots. Waves 1 foot or less, then
around 2 feet in the afternoon.
.WEDNESDAY NIGHT...South winds around 10 knots. Waves around 2 feet.
.THURSDAY...Southwest winds 10 to 15 knots. Waves 2 to 3 feet. A
slight chance of showers in the morning.
.THURSDAY NIGHT...Southwest winds 5 to 10 knots. Waves around
2 feet.
.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 15 to 20 knots. Waves around 4 feet. A
slight chance of showers and thunderstorms.
.SATURDAY...South winds 15 to 20 knots, increasing to 20 to 25 knots
in the afternoon. Waves around 4 feet. Showers likely with a chance
of thunderstorms.
.SATURDAY NIGHT...Southwest winds 15 to 20 knots. Waves around
4 feet, subsiding to 2 to 3 feet after midnight. A chance of showers
and thunderstorms, mainly in the evening.

Winds and waves higher in and near thunderstorms.

$$

GMZ536-538-120315-
Chandeleur Sound-Breton Sound-
942 AM CDT Tue Mar 11 2025

.REST OF TODAY...West winds around 5 knots, becoming south around
5 knots late. Waves 1 foot or less.
.TONIGHT...Southwest winds 5 to 10 knots. Waves 1 to 2 feet.
.WEDNESDAY...South winds 5 to 10 knots. Waves 1 foot or less, then
around 2 feet in the afternoon.
.WEDNESDAY NIGHT...South winds around 10 knots. Waves around 2 feet.
.THURSDAY...Southwest winds 10 to 15 knots. Waves 2 to 3 feet.
.THURSDAY NIGHT...Southwest winds 10 to 15 knots with gusts up to
20 knots, becoming south 5 to 10 knots after midnight. Waves around
2 feet.
.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 15 to 20 knots. Waves around 4 feet. A
slight chance of showers and thunderstorms.
.SATURDAY...South winds 15 to 20 knots, increasing to 20 to 25 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...South winds 20 to 25 knots, becoming southwest
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, mainly
in the evening.

Winds and waves higher in and near thunderstorms.

$$

GMZ555-557-120315-
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-
942 AM CDT Tue Mar 11 2025

.REST OF TODAY...Northwest winds around 5 knots, becoming southwest
late. Seas 1 to 2 feet late this morning, then 1 foot or less. Wave
Detail: South 1 foot at 6 seconds, becoming west 1 foot at 2 seconds
and southeast 1 foot at 7 seconds.
.TONIGHT...Southwest winds 5 to 10 knots. Seas 1 foot or less. Wave
Detail: Southwest 1 foot at 3 seconds and southeast 1 foot at
6 seconds.
.WEDNESDAY...Southwest winds 5 to 10 knots. Seas 1 foot or less,
then around 2 feet in the afternoon. Wave Detail: Southwest 1 foot
at 3 seconds, becoming south 2 feet at 3 seconds.
.WEDNESDAY NIGHT...South winds 10 to 15 knots with gusts up to
20 knots. Seas around 2 feet. Wave Detail: South 2 feet at
4 seconds.
.THURSDAY...Southwest winds 10 to 15 knots. Seas 2 to 3 feet. Wave
Detail: South 2 feet at 5 seconds. A slight chance of showers in the
morning.
.THURSDAY NIGHT...Southwest winds 5 to 10 knots. Seas 2 to 3 feet.
Wave Detail: South 2 feet at 5 seconds.
.FRIDAY...South winds 10 to 15 knots. Seas 2 to 3 feet. Wave Detail:
South 3 feet at 5 seconds.
.FRIDAY NIGHT...South winds 15 to 20 knots. Seas 2 to 4 feet,
occasionally to 5 feet, building to 4 to 6 feet, occasionally to
8 feet after midnight. Wave Detail: South 4 feet at 5 seconds,
becoming south 6 feet at 6 seconds. A slight chance of showers and
thunderstorms in the evening.
.SATURDAY...South winds 20 to 25 knots. Seas 5 to 7 feet,
occasionally to 9 feet. Wave Detail: South 7 feet at 7 seconds. A
chance of showers. A chance of thunderstorms, mainly in the morning.
.SATURDAY NIGHT...Southwest winds 15 to 20 knots. Seas 5 to 8 feet,
occasionally to 10 feet. Wave Detail: South 8 feet at 8 seconds. 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.

$$

GMZ550-552-120315-
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-
942 AM CDT Tue Mar 11 2025

.REST OF TODAY...West winds around 5 knots, becoming southwest late.
Seas 1 foot or less. Wave Detail: West 1 foot at 4 seconds.
.TONIGHT...Southwest winds 5 to 10 knots. Seas 1 foot or less. Wave
Detail: Southwest 1 foot at 4 seconds.
.WEDNESDAY...South winds 5 to 10 knots. Seas 1 foot or less, then
around 2 feet in the afternoon. Wave Detail: Southwest 1 foot at
4 seconds, becoming south 2 feet at 4 seconds.
.WEDNESDAY NIGHT...South winds around 10 knots with gusts up to
20 knots. Seas 2 to 3 feet. Wave Detail: South 2 feet at 4 seconds.
.THURSDAY...Southwest winds 10 to 15 knots. Seas 2 to 3 feet. Wave
Detail: Southwest 3 feet at 5 seconds.
.THURSDAY NIGHT...Southwest 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 4 feet, occasionally to 5 feet. Wave
Detail: South 4 feet at 5 seconds.
.FRIDAY NIGHT...South winds 15 to 20 knots. Seas 3 to 5 feet,
occasionally to 6 feet. Wave Detail: South 5 feet at 6 seconds.
.SATURDAY...South winds 15 to 20 knots, increasing to 20 to 25 knots
in the afternoon. Seas 4 to 6 feet, occasionally to 8 feet. Wave
Detail: South 6 feet at 8 seconds. A chance of showers. A chance of
thunderstorms, mainly in the morning.
.SATURDAY NIGHT...Southwest winds 15 to 20 knots, becoming west
10 to 15 knots after midnight. Seas 4 to 6 feet, occasionally to
8 feet. Wave Detail: South 6 feet at 8 seconds. A slight chance of
thunderstorms. A chance of showers, mainly in the evening.

Winds and seas higher in and near thunderstorms.

$$

GMZ575-577-120315-
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-
942 AM CDT Tue Mar 11 2025

.REST OF TODAY...Northwest winds around 5 knots, becoming west late.
Seas around 2 feet. Wave Detail: North 1 foot at 5 seconds and south
1 foot at 7 seconds.
.TONIGHT...Southwest winds 5 to 10 knots. Seas 1 foot or less. Wave
Detail: Northeast 1 foot at 3 seconds and west 1 foot at 5 seconds.
.WEDNESDAY...South winds 5 to 10 knots. Seas 1 foot or less, then
around 2 feet in the afternoon. Wave Detail: Southwest 1 foot at
4 seconds, becoming south 2 feet at 3 seconds.
.WEDNESDAY NIGHT...South winds 10 to 15 knots with gusts up to
20 knots. Seas 2 to 3 feet. Wave Detail: South 2 feet at 4 seconds.
.THURSDAY...Southwest winds 10 to 15 knots with gusts up to
20 knots. Seas 2 to 3 feet. Wave Detail: South 3 feet at 5 seconds.
A slight chance of showers.
.THURSDAY NIGHT...Southwest winds 5 to 10 knots. Seas 2 to 3 feet.
Wave Detail: Southwest 3 feet at 6 seconds.
.FRIDAY...South winds 10 to 15 knots. Seas 2 to 3 feet. Wave Detail:
South 3 feet at 5 seconds.
.FRIDAY NIGHT...South winds 15 to 20 knots. 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 20 to 25 knots. Seas 6 to 7 feet,
occasionally to 9 feet, building to 7 to 9 feet, occasionally to
11 feet in the afternoon. Wave Detail: South 7 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...South winds 20 to 25 knots, becoming southwest
15 to 20 knots after midnight. Seas 7 to 9 feet, occasionally to
11 feet. Wave Detail: South 9 feet at 9 seconds. Showers likely in
the evening, then a chance of showers and thunderstorms after
midnight.

Winds and seas higher in and near thunderstorms.

$$

GMZ570-572-120315-
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-
942 AM CDT Tue Mar 11 2025

.REST OF TODAY...West winds around 5 knots, becoming southwest
around 5 knots late. Seas around 2 feet. Wave Detail: West 1 foot at
5 seconds and southeast 1 foot at 6 seconds.
.TONIGHT...Southwest winds 5 to 10 knots. Seas 1 foot or less, then
around 2 feet after midnight. Wave Detail: West 1 foot at 4 seconds
and southeast 1 foot at 6 seconds, becoming southwest 2 feet at
3 seconds.
.WEDNESDAY...South winds around 10 knots. Seas around 2 feet. Wave
Detail: South 2 feet at 4 seconds.
.WEDNESDAY NIGHT...South winds 10 to 15 knots with gusts up to
20 knots. Seas 2 to 3 feet. Wave Detail: South 3 feet at 5 seconds.
.THURSDAY...Southwest winds 10 to 15 knots with gusts up to
20 knots. Seas around 3 feet. Wave Detail: Southwest 3 feet at
5 seconds.
.THURSDAY NIGHT...Southwest winds 5 to 10 knots. Seas 2 to 3 feet.
Wave Detail: Southwest 3 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, building to 3 to 5 feet,
occasionally to 6 feet in the afternoon. Wave Detail: South 3 feet
at 5 seconds, becoming southwest 5 feet at 5 seconds.
.FRIDAY NIGHT...South winds around 20 knots. Seas 4 to 6 feet,
occasionally to 8 feet. Wave Detail: South 6 feet at 6 seconds.
.SATURDAY...South winds 20 to 25 knots. Seas 6 to 7 feet,
occasionally to 9 feet, building to 8 to 9 feet, occasionally to
11 feet in the afternoon. Wave Detail: South 7 feet at 7 seconds,
becoming south 9 feet at 8 seconds. A chance of showers. A chance of
thunderstorms, mainly in the morning.
.SATURDAY NIGHT...South winds 15 to 20 knots, becoming southwest
10 to 15 knots after midnight. Seas 8 to 9 feet, occasionally to
11 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 slight chance of thunderstorms. A chance of
showers, mainly in the evening.

Winds and seas higher in and near thunderstorms.

$$