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

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Coastal Waters Forecast
National Weather Service New Orleans LA
1111 AM CST Wed Nov 19 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-GMZ501-200600-
1111 AM CST Wed Nov 19 2025

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

Surface high pressure will slide a little farther east allowing
southerly flow to increase a touch Thursday and Friday ahead of a
weak front that will likely not even reach the coast on Saturday.
This would keep light onshore flow over the region heading into next
week. Winds through the forecast should remain below adv criteria
with the main concerns being scattered showers and a few
thunderstorms late Friday and throughout the weekend.

$$

GMZ530-200600-
Lake Pontchartrain and Lake Maurepas-
1111 AM CST Wed Nov 19 2025

...DENSE FOG ADVISORY IN EFFECT FROM MIDNIGHT TONIGHT TO 9 AM CST
THURSDAY...

.THIS AFTERNOON...East winds around 5 knots, becoming southeast
late. Waves 1 foot or less.
.TONIGHT...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 with visibility 1 NM or less.
.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 with gusts up to 20 knots.
Waves around 2 feet. A chance of showers with a slight chance of
thunderstorms in the morning, then showers likely with a chance of
thunderstorms in the afternoon.
.FRIDAY NIGHT...Southwest winds 5 to 10 knots. Waves around 2 feet.
A slight chance of showers.
.SATURDAY...Southwest winds around 5 knots. Waves 1 foot or less. A
slight chance of showers and thunderstorms in the afternoon.
.SATURDAY NIGHT...South winds around 5 knots, becoming northwest
after midnight. Waves 1 foot or less.
.SUNDAY...East winds around 5 knots. Waves 1 foot or less.
.SUNDAY NIGHT...Southeast winds 5 to 10 knots. Waves around 2 feet.
A slight chance of showers after midnight.

Winds and waves higher in and near thunderstorms.

$$

GMZ534-200600-
Lake Borgne-
1111 AM CST Wed Nov 19 2025

...DENSE FOG ADVISORY IN EFFECT FROM MIDNIGHT TONIGHT TO 9 AM CST
THURSDAY...

.THIS AFTERNOON...East winds 5 to 10 knots. Waves 1 foot or less.
.TONIGHT...Southeast winds 5 to 10 knots. Waves 1 foot or less.
.THURSDAY...East winds 5 to 10 knots. Waves 1 foot or less, then
around 2 feet in the afternoon. Areas of dense fog in the morning
with visibility 1 NM or less.
.THURSDAY NIGHT...Southeast winds 10 to 15 knots. Waves around
2 feet. A slight chance of showers after midnight.
.FRIDAY...South winds 10 to 15 knots with gusts up to 20 knots.
Waves around 2 feet. A chance of showers with a slight chance of
thunderstorms.
.FRIDAY NIGHT...Southwest winds 5 to 10 knots. Waves around 2 feet
in the evening, then 1 foot or less. A slight chance of showers.
.SATURDAY...Southwest winds around 5 knots. Waves 1 foot or less. A
slight chance of showers. A slight chance of thunderstorms in the
afternoon.
.SATURDAY NIGHT...Southwest winds 5 to 10 knots. Waves 1 foot or
less.
.SUNDAY...East winds 5 to 10 knots. Waves 1 foot or less.
.SUNDAY NIGHT...Southeast winds 5 to 10 knots. Waves 1 foot or less,
then around 2 feet after midnight.

Winds and waves higher in and near thunderstorms.

$$

GMZ532-200600-
Mississippi Sound-
1111 AM CST Wed Nov 19 2025

...DENSE FOG ADVISORY IN EFFECT FROM MIDNIGHT TONIGHT TO 9 AM CST
THURSDAY...

.THIS AFTERNOON...Southeast winds around 5 knots. Waves 1 foot or
less.
.TONIGHT...Southeast winds around 5 knots. Waves 1 foot or less.
.THURSDAY...East winds around 5 knots, becoming southeast in the
afternoon. Waves 1 foot or less, then around 2 feet in the
afternoon. Areas of dense fog in the morning with visibility 1 NM or
less.
.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 with gusts up to 20 knots.
Waves 2 to 3 feet. A chance of showers with a slight chance of
thunderstorms.
.FRIDAY NIGHT...South winds 10 to 15 knots with gusts up to
20 knots, becoming southwest 5 to 10 knots after midnight. Waves
around 2 feet. A slight chance of showers.
.SATURDAY...Southwest winds 5 to 10 knots. Waves 1 foot or less,
then around 2 feet in the afternoon. A slight chance of showers. A
slight chance of thunderstorms in the afternoon.
.SATURDAY NIGHT...Southwest winds 5 to 10 knots, becoming west after
midnight. Waves around 2 feet.
.SUNDAY...East winds around 5 knots, becoming southeast in the
afternoon. Waves 1 foot or less.
.SUNDAY NIGHT...Southeast winds 5 to 10 knots. Waves 1 foot or less,
then around 2 feet after midnight.

Winds and waves higher in and near thunderstorms.

$$

GMZ536-538-200600-
Chandeleur Sound-Breton Sound-
1111 AM CST Wed Nov 19 2025

...DENSE FOG ADVISORY IN EFFECT FROM MIDNIGHT TONIGHT TO 9 AM CST
THURSDAY...

.THIS AFTERNOON...East winds around 5 knots. Waves 1 foot or less.
.TONIGHT...Southeast winds around 5 knots. Waves 1 foot or less.
.THURSDAY...East winds 5 to 10 knots. Waves 1 foot or less. Patchy
dense fog in the morning with visibility 1 NM or less.
.THURSDAY NIGHT...Southeast winds 10 to 15 knots. Waves around
2 feet. A slight chance of showers after midnight.
.FRIDAY...South winds 10 to 15 knots with gusts up to 20 knots.
Waves around 2 feet. A chance of showers with a slight chance of
thunderstorms.
.FRIDAY NIGHT...Southwest winds 5 to 10 knots. Waves around 2 feet.
A slight chance of showers.
.SATURDAY...Southwest winds 5 to 10 knots. Waves 1 foot or less. A
slight chance of showers.
.SATURDAY NIGHT...Southwest winds 5 to 10 knots. Waves 1 foot or
less.
.SUNDAY...Northeast winds 5 to 10 knots, becoming southeast in the
afternoon. Waves 1 foot or less.
.SUNDAY NIGHT...Southeast winds 5 to 10 knots. Waves 1 foot or less,
then around 2 feet after midnight.

Winds and waves higher in and near thunderstorms.

$$

GMZ555-557-200600-
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-
1111 AM CST Wed Nov 19 2025

.THIS AFTERNOON...East winds around 5 knots. Seas 1 foot or less.
Wave Detail: Southeast 1 foot at 3 seconds.
.TONIGHT...Southeast winds around 5 knots. Seas 1 foot or less. 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 6 seconds. Patchy dense fog in the
morning with visibility 1 NM or less.
.THURSDAY NIGHT...Southeast winds 10 to 15 knots. Seas 2 to 3 feet.
Wave Detail: Southeast 3 feet at 7 seconds.
.FRIDAY...South winds 10 to 15 knots with gusts up to 20 knots. Seas
2 to 4 feet, occasionally to 5 feet. Wave Detail: Southeast 3 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 5 to 10 knots. Seas 2 to 3 feet. Wave
Detail: Southeast 3 feet at 6 seconds. A slight chance of showers in
the evening.
.SATURDAY...Southwest winds 5 to 10 knots. Seas 2 to 3 feet. Wave
Detail: South 2 feet at 6 seconds.
.SATURDAY NIGHT...Southwest winds 5 to 10 knots. Seas around 2 feet.
Wave Detail: South 2 feet at 6 seconds.
.SUNDAY...East winds 5 to 10 knots. Seas around 2 feet. Wave Detail:
Southeast 2 feet at 6 seconds and north 1 foot at 3 seconds.
.SUNDAY NIGHT...Southeast winds 5 to 10 knots. Seas around 2 feet.
Wave Detail: South 2 feet at 6 seconds and northeast 1 foot at
3 seconds.

Winds and seas higher in and near thunderstorms.

$$

GMZ550-552-200600-
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-
1111 AM CST Wed Nov 19 2025

.THIS AFTERNOON...East winds 5 to 10 knots. Seas 1 foot or less.
Wave Detail: Southeast 1 foot at 4 seconds.
.TONIGHT...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 5 seconds.
.THURSDAY NIGHT...Southeast winds 10 to 15 knots with gusts up to
25 knots. Seas 2 to 4 feet, occasionally to 5 feet. Wave Detail:
Southeast 4 feet at 6 seconds. A chance of showers. A slight chance
of thunderstorms after midnight.
.FRIDAY...South winds 10 to 15 knots with gusts up to 25 knots. Seas
2 to 4 feet, occasionally to 5 feet. Wave Detail: Southeast 4 feet
at 6 seconds. A chance of showers. A slight chance of thunderstorms
in the morning, then a chance of thunderstorms in the afternoon.
.FRIDAY NIGHT...South winds 5 to 10 knots. Seas around 2 feet. Wave
Detail: South 2 feet at 6 seconds. A slight chance of showers in the
evening.
.SATURDAY...South winds around 5 knots. Seas around 2 feet. Wave
Detail: South 2 feet at 6 seconds. A slight chance of showers in the
morning.
.SATURDAY NIGHT...South winds 5 to 10 knots. Seas 1 to 2 feet. Wave
Detail: South 2 feet at 6 seconds.
.SUNDAY...Southeast winds 5 to 10 knots. Seas 1 to 2 feet. Wave
Detail: South 2 feet at 6 seconds.
.SUNDAY NIGHT...Southeast winds 5 to 10 knots, increasing to 10 to
15 knots after midnight. Seas 1 to 2 feet. Wave Detail: Southeast
2 feet at 6 seconds. A slight chance of showers after midnight.

Winds and seas higher in and near thunderstorms.

$$

GMZ575-577-200600-
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-
1111 AM CST Wed Nov 19 2025

.THIS AFTERNOON...East 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 around 2 feet. Wave
Detail: East 1 foot 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
25 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 with gusts up to 20 knots. Seas
3 to 4 feet, occasionally to 5 feet. Wave Detail: Southeast 4 feet
at 6 seconds. A slight chance of showers.
.FRIDAY NIGHT...South winds around 10 knots. Seas around 3 feet.
Wave Detail: South 3 feet at 6 seconds.
.SATURDAY...South winds 5 to 10 knots. Seas 2 to 3 feet. Wave
Detail: South 3 feet at 6 seconds.
.SATURDAY NIGHT...South winds 5 to 10 knots. Seas 2 to 3 feet. Wave
Detail: South 2 feet at 6 seconds.
.SUNDAY...Southeast winds 5 to 10 knots. Seas around 2 feet. Wave
Detail: South 2 feet at 6 seconds and northeast 1 foot at 3 seconds.
.SUNDAY NIGHT...Southeast winds 5 to 10 knots. Seas around 2 feet.
Wave Detail: South 2 feet at 6 seconds.

$$

GMZ570-572-200600-
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-
1111 AM CST Wed Nov 19 2025

.THIS AFTERNOON...East winds 5 to 10 knots. Seas around 2 feet. Wave
Detail: Southeast 2 feet at 5 seconds.
.TONIGHT...Southeast winds around 10 knots. Seas around 2 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.
.THURSDAY NIGHT...Southeast winds 15 to 20 knots with gusts up to
25 knots. Seas 3 to 5 feet, occasionally to 6 feet. Wave Detail:
Southeast 5 feet at 7 seconds. A chance of showers. A slight chance
of thunderstorms after midnight.
.FRIDAY...South winds 10 to 15 knots with gusts up to 25 knots. Seas
4 to 5 feet, occasionally to 6 feet. Wave Detail: Southeast 5 feet
at 6 seconds. A chance of showers and thunderstorms.
.FRIDAY NIGHT...South winds 5 to 10 knots. Seas 3 to 4 feet,
occasionally to 5 feet. Wave Detail: Southeast 4 feet at 6 seconds.
A slight chance of showers in the evening.
.SATURDAY...South winds 5 to 10 knots. Seas around 3 feet. Wave
Detail: South 3 feet at 6 seconds. A slight chance of showers in the
morning.
.SATURDAY NIGHT...Southeast winds 5 to 10 knots. Seas 2 to 3 feet.
Wave Detail: South 2 feet at 6 seconds.
.SUNDAY...Southeast winds around 10 knots. Seas around 2 feet. Wave
Detail: South 2 feet at 6 seconds.
.SUNDAY NIGHT...Southeast winds 10 to 15 knots. Seas 2 to 3 feet.
Wave Detail: Southeast 2 feet at 5 seconds. A slight chance of
showers.

Winds and seas higher in and near thunderstorms.

$$