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

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FZUS54 KLIX 181048
CWFLIX

Coastal Waters Forecast
National Weather Service New Orleans LA
447 AM CST Tue Nov 18 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-GMZ501-182300-
447 AM CST Tue Nov 18 2025

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

Surface high pressure will generally remain centered, east of the
local area through Thursday with light onshore flow. Friday, a
surface low will move into the Mid Mississippi Valley with a
trailing cold front moving into the area late Friday and towards the
coast Saturday. Slightly stronger onshore winds will occur in
response to the surface low and approaching front. However,
confidence is low that we may need headlines this weekend.

$$

GMZ530-182300-
Lake Pontchartrain and Lake Maurepas-
447 AM CST Tue Nov 18 2025

...DENSE FOG ADVISORY IN EFFECT UNTIL 10 AM CST THIS MORNING...

.TODAY...Southeast winds 5 to 10 knots. Waves 1 foot or less, then
around 2 feet this afternoon. Patchy fog early this morning.
.TONIGHT...South winds 5 to 10 knots, diminishing to around 5 knots
after midnight. Waves around 2 feet in the evening, then 1 foot or
less. Areas of dense fog after midnight.
.WEDNESDAY...Southeast winds around 5 knots, increasing to 5 to
10 knots in the afternoon. Waves 1 foot or less. Areas of dense fog
in the morning.
.WEDNESDAY NIGHT...Southeast winds 5 to 10 knots. Waves 1 foot or
less.
.THURSDAY...Southeast winds 5 to 10 knots. Waves 1 foot or less,
then around 2 feet in the afternoon. Areas of dense fog in the
morning.
.THURSDAY NIGHT...Southeast winds around 10 knots. Waves around
2 feet. A slight chance of showers in the evening, then a chance of
showers with a slight chance of thunderstorms after midnight.
.FRIDAY...South winds around 10 knots. Waves around 2 feet. Showers
likely, mainly in the morning.
.FRIDAY NIGHT...Southwest winds 5 to 10 knots. Waves around 2 feet.
A slight chance of showers.
.SATURDAY...West winds 5 to 10 knots. Waves around 2 feet. A slight
chance of showers.
.SATURDAY NIGHT...North winds 5 to 10 knots. Waves around 2 feet.

Winds and waves higher in and near thunderstorms.

$$

GMZ534-182300-
Lake Borgne-
447 AM CST Tue Nov 18 2025

.TODAY...Southeast winds 5 to 10 knots. Waves 1 foot or less. Patchy
fog early this morning.
.TONIGHT...South winds 5 to 10 knots, diminishing to around 5 knots
after midnight. Waves 1 foot or less. Areas of dense fog after
midnight.
.WEDNESDAY...East winds around 5 knots, becoming southeast in the
afternoon. Waves 1 foot or less. Patchy fog in the morning.
.WEDNESDAY NIGHT...Southeast winds 5 to 10 knots. Waves 1 foot or
less.
.THURSDAY...Southeast winds 5 to 10 knots. Waves 1 foot or less,
then around 2 feet in the afternoon. Patchy fog in the morning.
.THURSDAY NIGHT...Southeast winds 10 to 15 knots. Waves around
2 feet. A chance of showers after midnight.
.FRIDAY...South winds 10 to 15 knots. Waves around 2 feet. A chance
of showers.
.FRIDAY NIGHT...Southwest winds around 10 knots. Waves around
2 feet. A slight chance of showers.
.SATURDAY...West winds 5 to 10 knots. Waves 1 foot or less. A slight
chance of showers.
.SATURDAY NIGHT...Northwest winds 5 to 10 knots, becoming north
after midnight. Waves around 2 feet.

$$

GMZ532-182300-
Mississippi Sound-
447 AM CST Tue Nov 18 2025

.TODAY...Southeast winds 5 to 10 knots. Waves 1 foot or less, then
around 2 feet this afternoon. Areas of dense fog early this morning.
.TONIGHT...South winds 5 to 10 knots, becoming southwest after
midnight. Waves around 2 feet in the evening, then 1 foot or less.
Areas of dense fog after midnight.
.WEDNESDAY...North winds around 5 knots, becoming south in the
afternoon. Waves 1 foot or less. Patchy fog in the morning.
.WEDNESDAY NIGHT...South winds 5 to 10 knots. Waves 1 foot or less.
.THURSDAY...Southeast winds 5 to 10 knots. Waves 1 foot or less,
then around 2 feet in the afternoon. Patchy fog in the morning.
.THURSDAY NIGHT...Southeast winds around 10 knots. Waves around
2 feet. A slight chance of showers after midnight.
.FRIDAY...South winds 10 to 15 knots. Waves 2 to 3 feet. A chance of
showers.
.FRIDAY NIGHT...Southwest winds around 10 knots. Waves around
2 feet. A slight chance of showers.
.SATURDAY...Southwest winds around 10 knots. Waves around 2 feet. A
slight chance of showers.
.SATURDAY NIGHT...Northwest winds around 10 knots, becoming north
after midnight. Waves around 2 feet.

$$

GMZ536-538-182300-
Chandeleur Sound-Breton Sound-
447 AM CST Tue Nov 18 2025

.TODAY...Southeast winds 5 to 10 knots. Waves 1 foot or less. Patchy
dense fog early this morning.
.TONIGHT...South winds 5 to 10 knots, diminishing to around 5 knots
after midnight. Waves 1 foot or less. Patchy dense fog after
midnight.
.WEDNESDAY...East winds around 5 knots. Waves 1 foot or less.
.WEDNESDAY NIGHT...Southeast winds around 5 knots. Waves 1 foot or
less.
.THURSDAY...East winds 5 to 10 knots. Waves 1 foot or less.
.THURSDAY NIGHT...Southeast winds around 10 knots. Waves around
2 feet. A slight chance of showers after midnight.
.FRIDAY...South winds around 10 knots. Waves around 2 feet. A chance
of showers.
.FRIDAY NIGHT...Southwest winds around 10 knots. Waves around
2 feet. A slight chance of showers.
.SATURDAY...West winds 5 to 10 knots. Waves around 2 feet. A slight
chance of showers in the morning.
.SATURDAY NIGHT...West winds 5 to 10 knots, becoming north after
midnight. Waves around 2 feet.

$$

GMZ555-557-182300-
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-
447 AM CST Tue Nov 18 2025

.TODAY...Southeast winds around 5 knots. Seas 1 foot or less. Wave
Detail: Southeast 1 foot at 3 seconds. Areas of dense fog early this
morning.
.TONIGHT...South winds 5 to 10 knots. Seas 1 foot or less. Wave
Detail: Southeast 1 foot at 3 seconds.
.WEDNESDAY...Northeast winds around 5 knots. Seas 1 foot or less.
Wave Detail: Southeast 1 foot at 4 seconds.
.WEDNESDAY NIGHT...Southeast winds around 5 knots. Seas around
2 feet. Wave Detail: Southeast 1 foot at 4 seconds.
.THURSDAY...Southeast winds 5 to 10 knots. Seas around 2 feet. Wave
Detail: Southeast 2 feet at 5 seconds.
.THURSDAY NIGHT...Southeast winds 10 to 15 knots. Seas 2 to 3 feet.
Wave Detail: Southeast 3 feet at 6 seconds. A slight chance of
showers after midnight.
.FRIDAY...South winds 10 to 15 knots. Seas 2 to 3 feet. Wave Detail:
South 3 feet at 6 seconds. A chance of showers with a slight chance
of thunderstorms.
.FRIDAY NIGHT...Southwest winds around 10 knots. Seas 2 to 3 feet.
Wave Detail: South 3 feet at 6 seconds. A slight chance of showers.
.SATURDAY...West winds 5 to 10 knots. Seas 2 to 3 feet. Wave Detail:
South 3 feet at 6 seconds.
.SATURDAY NIGHT...West winds 5 to 10 knots, becoming north after
midnight. Seas 2 to 3 feet. Wave Detail: North 2 feet at 3 seconds
and southeast 2 feet at 6 seconds.

Winds and seas higher in and near thunderstorms.

$$

GMZ550-552-182300-
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-
447 AM CST Tue Nov 18 2025

.TODAY...Southeast winds 5 to 10 knots. Seas 1 to 2 feet. Wave
Detail: South 2 feet at 4 seconds.
.TONIGHT...Southeast winds 5 to 10 knots. Seas 1 to 2 feet. Wave
Detail: South 1 foot at 4 seconds. Areas of dense fog after
midnight.
.WEDNESDAY...East winds 5 to 10 knots. Seas 1 foot or less, then
1 to 2 feet in the afternoon. Wave Detail: Southeast 2 feet at
5 seconds. Patchy dense fog in the morning.
.WEDNESDAY NIGHT...Southeast winds 5 to 10 knots. Seas 1 to 2 feet.
Wave Detail: Southeast 2 feet at 5 seconds.
.THURSDAY...Southeast winds 5 to 10 knots. Seas 1 to 2 feet. Wave
Detail: Southeast 2 feet at 6 seconds.
.THURSDAY NIGHT...Southeast winds 10 to 15 knots with gusts up to
20 knots. Seas 2 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.
.FRIDAY...South winds 10 to 15 knots, diminishing to 5 to 10 knots
in the afternoon. Seas 2 to 4 feet, occasionally to 5 feet. Wave
Detail: South 4 feet at 6 seconds. A chance of showers.
.FRIDAY NIGHT...Southwest winds 5 to 10 knots. Seas 2 to 3 feet.
Wave Detail: South 3 feet at 6 seconds. A slight chance of showers.
.SATURDAY...West winds 5 to 10 knots. Seas around 2 feet. Wave
Detail: South 2 feet at 6 seconds and west 1 foot at 2 seconds. A
slight chance of showers in the morning.
.SATURDAY NIGHT...West winds 5 to 10 knots, becoming north after
midnight. Seas around 2 feet. Wave Detail: West 2 feet at 3 seconds
and southeast 2 feet at 6 seconds.

Winds and seas higher in and near thunderstorms.

$$

GMZ575-577-182300-
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-
447 AM CST Tue Nov 18 2025

.TODAY...Southeast winds around 5 knots. Seas 1 foot or less. Wave
Detail: Southeast 1 foot at 3 seconds.
.TONIGHT...Southeast winds 5 to 10 knots. Seas 1 foot or less. Wave
Detail: Southeast 1 foot at 3 seconds.
.WEDNESDAY...East winds 5 to 10 knots. Seas 1 foot or less, then
around 2 feet in the afternoon. Wave Detail: Southeast 1 foot at
4 seconds.
.WEDNESDAY NIGHT...Southeast winds 5 to 10 knots. Seas around
2 feet. Wave Detail: East 2 feet at 4 seconds.
.THURSDAY...Southeast winds 5 to 10 knots. Seas 2 to 3 feet. Wave
Detail: Southeast 3 feet at 6 seconds.
.THURSDAY NIGHT...Southeast winds 10 to 15 knots with gusts up to
20 knots. Seas 2 to 4 feet, occasionally to 5 feet. Wave Detail:
Southeast 4 feet at 6 seconds.
.FRIDAY...South winds 10 to 15 knots. Seas 3 to 4 feet, occasionally
to 5 feet. Wave Detail: South 4 feet at 6 seconds. A slight chance
of showers in the morning, then a chance of showers with a slight
chance of thunderstorms in the afternoon.
.FRIDAY NIGHT...South winds around 10 knots. Seas around 3 feet.
Wave Detail: South 3 feet at 6 seconds. A slight chance of showers.
.SATURDAY...Southwest winds around 10 knots. Seas 2 to 3 feet. Wave
Detail: Southwest 3 feet at 6 seconds.
.SATURDAY NIGHT...West winds around 10 knots, becoming north after
midnight. Seas 2 to 3 feet. Wave Detail: West 2 feet at 5 seconds
and southeast 2 feet at 6 seconds.

Winds and seas higher in and near thunderstorms.

$$

GMZ570-572-182300-
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-
447 AM CST Tue Nov 18 2025

.TODAY...Southeast winds 5 to 10 knots. Seas 2 to 3 feet. Wave
Detail: Southeast 2 feet at 4 seconds.
.TONIGHT...Southeast winds 5 to 10 knots. Seas around 2 feet. Wave
Detail: Southeast 2 feet at 4 seconds.
.WEDNESDAY...East winds 5 to 10 knots. Seas around 2 feet. Wave
Detail: Southeast 2 feet at 4 seconds.
.WEDNESDAY NIGHT...Southeast winds around 10 knots. Seas 2 to
3 feet. Wave Detail: Southeast 2 feet at 5 seconds.
.THURSDAY...Southeast winds 10 to 15 knots. Seas 2 to 3 feet. Wave
Detail: Southeast 3 feet at 6 seconds. A slight chance of showers in
the afternoon.
.THURSDAY NIGHT...Southeast winds 15 to 20 knots. Seas 3 to 5 feet,
occasionally to 6 feet. Wave Detail: Southeast 5 feet at 7 seconds.
A chance of showers with a slight chance of thunderstorms.
.FRIDAY...South winds 10 to 15 knots. Seas 4 to 5 feet, occasionally
to 6 feet. Wave Detail: Southeast 5 feet at 6 seconds. A chance of
showers with a slight chance of thunderstorms.
.FRIDAY NIGHT...Southwest winds around 10 knots. Seas 3 to 4 feet,
occasionally to 5 feet. Wave Detail: South 3 feet at 6 seconds. A
slight chance of showers.
.SATURDAY...West winds around 10 knots. Seas around 3 feet. Wave
Detail: South 3 feet at 6 seconds and northwest 2 feet at 4 seconds.
A slight chance of thunderstorms in the morning. A slight chance of
showers.
.SATURDAY NIGHT...West winds around 10 knots, becoming north after
midnight. Seas around 3 feet. Wave Detail: Northwest 2 feet at
4 seconds and southeast 2 feet at 6 seconds.

Winds and seas higher in and near thunderstorms.

$$