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

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699
FZUS54 KLIX 011037
CWFLIX

Coastal Waters Forecast
National Weather Service New Orleans LA
437 AM CST Mon Dec 1 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-GMZ501-012300-
437 AM CST Mon Dec 1 2025

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

Changes since last update: Added Small Craft Advisory for GMZ575 and
577 in effect through noon Monday. Exercise caution for all waters
expect MS sound and Lake Pontchartrain/Maurepas from Noon Monday
through 9PM Monday night.

New: Small Craft Advisory in effect for all waters 9PM Monday
through 3PM Tuesday.

Tonight, a recent frontal passage has introduced gusty wind at
around 18-22kts from the NE, which will persist overnight into
Monday morning ahead of the next developing surface low over the
western Gulf. As this low drifts northeast, it`ll cross gulf waters
providing a round of heavy rain and thunderstorms primarily from
Monday afternoon through early Tuesday morning. In any one storm,
waterspouts, winds <34kts and locally higher waves/seas can be
expected. As this low passes, confidence on how strong winds will
remain outside of thunderstorms remains in question. There is now
exercise caution headlines as the low passes, but could be upgraded
to advisory if conditions warrant. Then, as the low passes early
Tuesday to the NE, strong NW winds will increase across waters at
around 15-20kts, with the 2nd round of Advisory headlines in effect.
Waves/seas will respond reaching around 5-7ft in this time frame
mainly for Gulf waters, 3-5ft for protected waters. High pressure
builds into the region mid-week, with winds and waves/seas calming
down, but still expecting another system to impact the region
Thursday and Friday, with increasing winds and shower/thunderstorm
activity expected.

$$

GMZ530-012300-
Lake Pontchartrain and Lake Maurepas-
437 AM CST Mon Dec 1 2025

...SMALL CRAFT ADVISORY IN EFFECT UNTIL NOON CST TODAY...
...SMALL CRAFT ADVISORY IN EFFECT FROM THIS EVENING THROUGH TUESDAY
AFTERNOON...

.TODAY...Northeast winds 10 to 15 knots. Waves 2 to 3 feet. A chance
of showers with a slight chance of thunderstorms this afternoon.
.TONIGHT...Northeast winds 10 to 15 knots, becoming north 20 to
25 knots after midnight. Waves 2 to 4 feet. Showers with a slight
chance of thunderstorms in the evening, then showers likely after
midnight.
.TUESDAY...North winds 15 to 20 knots with gusts up to 25 knots.
Waves 3 to 4 feet.
.TUESDAY NIGHT...Northeast winds 10 to 15 knots. Waves 2 to 3 feet.
.WEDNESDAY...East winds 5 to 10 knots. Waves around 2 feet in the
morning, then 1 foot or less.
.WEDNESDAY NIGHT...East winds 5 to 10 knots. Waves around 2 feet. A
chance of showers after midnight.
.THURSDAY...East winds 10 to 15 knots. Waves 2 to 3 feet. A slight
chance of thunderstorms. Showers.
.THURSDAY NIGHT...East winds 10 to 15 knots. Waves 2 to 3 feet.
Showers likely with a slight chance of thunderstorms in the evening,
then showers likely with a chance of thunderstorms after midnight.
.FRIDAY...Northeast winds 10 to 15 knots, becoming northwest in the
afternoon. Waves around 2 feet. A slight chance of thunderstorms.
Showers.
.FRIDAY NIGHT...Northwest winds around 10 knots. Waves around
2 feet. A slight chance of thunderstorms. Showers likely, mainly in
the evening.

Winds and waves higher in and near thunderstorms.

$$

GMZ534-012300-
Lake Borgne-
437 AM CST Mon Dec 1 2025

...SMALL CRAFT ADVISORY IN EFFECT UNTIL NOON CST TODAY...
...SMALL CRAFT ADVISORY IN EFFECT FROM THIS EVENING THROUGH TUESDAY
AFTERNOON...

.TODAY...Northeast winds 15 to 20 knots. Waves 3 to 4 feet. A chance
of showers with a slight chance of thunderstorms early this
afternoon. Showers likely with a slight chance of thunderstorms
late.
.TONIGHT...Northeast winds around 15 knots, becoming north 20 to
25 knots after midnight. Waves 2 to 4 feet. Showers with a slight
chance of thunderstorms in the evening, then showers after midnight.
.TUESDAY...Northwest winds 20 to 25 knots, becoming north 15 to
20 knots in the afternoon. Waves 3 to 4 feet.
.TUESDAY NIGHT...North winds 10 to 15 knots. Waves 2 to 3 feet.
.WEDNESDAY...East winds 5 to 10 knots. Waves around 2 feet in the
morning, then 1 foot or less.
.WEDNESDAY NIGHT...East winds 5 to 10 knots. Waves 1 foot or less,
then around 2 feet after midnight. A chance of showers after
midnight.
.THURSDAY...East winds 10 to 15 knots. Waves 2 to 3 feet. Showers
likely.
.THURSDAY NIGHT...East winds around 15 knots. Waves 2 to 3 feet.
Showers likely. A chance of thunderstorms after midnight.
.FRIDAY...South winds 10 to 15 knots, becoming northwest in the
afternoon. Waves 2 to 3 feet. Showers likely with a slight chance of
thunderstorms in the morning, then showers with a chance of
thunderstorms in the afternoon.
.FRIDAY NIGHT...Northwest winds 10 to 15 knots. Waves around 2 feet.
A slight chance of thunderstorms. Showers likely, mainly in the
evening.

Winds and waves higher in and near thunderstorms.

$$

GMZ532-012300-
Mississippi Sound-
437 AM CST Mon Dec 1 2025

...SMALL CRAFT ADVISORY IN EFFECT UNTIL NOON CST TODAY...
...SMALL CRAFT ADVISORY IN EFFECT FROM THIS EVENING THROUGH TUESDAY
AFTERNOON...

.TODAY...Northeast winds 15 to 20 knots, diminishing to 10 to
15 knots late this morning and afternoon. Waves 3 to 4 feet. A
chance of showers with a slight chance of thunderstorms early this
afternoon. Showers likely with a slight chance of thunderstorms
late.
.TONIGHT...Northeast winds around 15 knots, becoming north after
midnight. Waves 3 to 4 feet. Showers with a chance of thunderstorms
in the evening, then showers with a slight chance of thunderstorms
after midnight.
.TUESDAY...North winds 15 to 20 knots. Waves 3 to 4 feet. A slight
chance of showers in the morning.
.TUESDAY NIGHT...North winds 10 to 15 knots. Waves 2 to 3 feet.
.WEDNESDAY...East winds 5 to 10 knots. Waves around 2 feet in the
morning, then 1 foot or less.
.WEDNESDAY NIGHT...East winds 5 to 10 knots. Waves 1 foot or less,
then 1 to 2 feet after midnight. A chance of showers after midnight.
.THURSDAY...East winds 10 to 15 knots. Waves 2 to 3 feet. Showers
likely.
.THURSDAY NIGHT...East winds around 15 knots. Waves around 3 feet.
Showers likely. A slight chance of thunderstorms after midnight.
.FRIDAY...South winds 10 to 15 knots, becoming west in the
afternoon. Waves 2 to 3 feet. A chance of thunderstorms. Showers.
.FRIDAY NIGHT...Northwest winds 10 to 15 knots. Waves 2 to 3 feet. A
slight chance of thunderstorms. Showers likely, mainly in the
evening.

Winds and waves higher in and near thunderstorms.

$$

GMZ536-538-012300-
Chandeleur Sound-Breton Sound-
437 AM CST Mon Dec 1 2025

...SMALL CRAFT ADVISORY IN EFFECT UNTIL NOON CST TODAY...
...SMALL CRAFT EXERCISE CAUTION IN EFFECT FROM NOON CST TODAY
THROUGH THIS EVENING...
...SMALL CRAFT ADVISORY IN EFFECT FROM THIS EVENING THROUGH TUESDAY
AFTERNOON...

.TODAY...Northeast winds 15 to 20 knots. Waves 3 to 4 feet. A chance
of showers with a slight chance of thunderstorms this afternoon.
.TONIGHT...Northeast winds around 15 knots, becoming north with
gusts up to 25 knots after midnight. Waves 3 to 5 feet. Showers with
a chance of thunderstorms in the evening, then a chance of showers
with a slight chance of thunderstorms after midnight.
.TUESDAY...North winds 15 to 20 knots with gusts up to 25 knots.
Waves 3 to 5 feet. A slight chance of showers in the morning.
.TUESDAY NIGHT...North winds 10 to 15 knots. Waves 2 to 3 feet.
.WEDNESDAY...East winds 5 to 10 knots. Waves around 2 feet in the
morning, then 1 foot or less.
.WEDNESDAY NIGHT...East winds 5 to 10 knots. Waves 1 foot or less,
then around 2 feet after midnight. A chance of showers after
midnight.
.THURSDAY...East winds 10 to 15 knots. Waves 2 to 3 feet. Showers
likely.
.THURSDAY NIGHT...Southeast winds around 15 knots. Waves around
3 feet. A chance of showers in the evening, then showers likely with
a slight chance of thunderstorms after midnight.
.FRIDAY...South winds around 15 knots, becoming west in the
afternoon. Waves 2 to 3 feet. Showers likely. A slight chance of
thunderstorms in the morning, then a chance of thunderstorms in the
afternoon.
.FRIDAY NIGHT...Northwest winds 10 to 15 knots. Waves 2 to 3 feet. A
slight chance of thunderstorms. Showers likely.

Winds and waves higher in and near thunderstorms.

$$

GMZ555-557-012300-
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-
437 AM CST Mon Dec 1 2025

...SMALL CRAFT ADVISORY IN EFFECT UNTIL NOON CST TODAY...
...SMALL CRAFT EXERCISE CAUTION IN EFFECT FROM NOON CST TODAY
THROUGH THIS EVENING...
...SMALL CRAFT ADVISORY IN EFFECT FROM THIS EVENING THROUGH TUESDAY
AFTERNOON...

.TODAY...East winds 15 to 20 knots. Seas 3 to 5 feet, occasionally
to 6 feet. Wave Detail: East 5 feet at 6 seconds. A slight chance of
showers late this morning. A chance of showers with a slight chance
of thunderstorms early this afternoon, then showers likely with a
chance of thunderstorms late.
.TONIGHT...Southeast winds around 15 knots, becoming northwest after
midnight. Seas 3 to 5 feet, occasionally to 6 feet. Wave Detail:
Southeast 4 feet at 6 seconds and northwest 3 feet at 3 seconds. A
chance of thunderstorms. Showers, mainly in the evening.
.TUESDAY...North winds 15 to 20 knots. Seas 4 to 6 feet,
occasionally to 8 feet. Wave Detail: Northwest 4 feet at 4 seconds
and southeast 3 feet at 6 seconds. A slight chance of showers in the
morning.
.TUESDAY NIGHT...North winds 10 to 15 knots. Seas 2 to 4 feet,
occasionally to 5 feet. Wave Detail: North 3 feet at 4 seconds and
southeast 1 foot at 6 seconds.
.WEDNESDAY...Northeast winds 5 to 10 knots. Seas around 2 feet. Wave
Detail: East 2 feet at 5 seconds.
.WEDNESDAY NIGHT...East winds 5 to 10 knots. Seas 1 foot or less,
then around 2 feet after midnight. Wave Detail: East 1 foot at
5 seconds, becoming southeast 1 foot at 4 seconds. A slight chance
of showers after midnight.
.THURSDAY...East winds 10 to 15 knots. Seas around 2 feet. Wave
Detail: Southeast 2 feet at 4 seconds. A chance of showers in the
morning, then showers likely in the afternoon.
.THURSDAY NIGHT...Southeast winds 10 to 15 knots. Seas 2 to 3 feet.
Wave Detail: Southeast 3 feet at 5 seconds. A chance of showers. A
slight chance of thunderstorms after midnight.
.FRIDAY...South winds around 15 knots, becoming southwest in the
afternoon. Seas 2 to 3 feet. Wave Detail: South 3 feet at 5 seconds.
Showers likely. A slight chance of thunderstorms in the morning,
then a chance of thunderstorms in the afternoon.
.FRIDAY NIGHT...Northwest winds 10 to 15 knots. Seas 2 to 4 feet,
occasionally to 5 feet. Wave Detail: South 3 feet at 6 seconds and
west 2 feet at 3 seconds. Showers likely with a chance of
thunderstorms.

Winds and seas higher in and near thunderstorms.

$$

GMZ550-552-012300-
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-
437 AM CST Mon Dec 1 2025

...SMALL CRAFT ADVISORY IN EFFECT UNTIL NOON CST TODAY...
...SMALL CRAFT EXERCISE CAUTION IN EFFECT FROM NOON CST TODAY
THROUGH THIS EVENING...
...SMALL CRAFT ADVISORY IN EFFECT FROM THIS EVENING THROUGH TUESDAY
AFTERNOON...

.TODAY...Northeast winds 15 to 20 knots, becoming east 10 to
15 knots late. Seas 2 to 4 feet, occasionally to 5 feet. Wave
Detail: East 4 feet at 6 seconds. A slight chance of showers this
morning, then showers likely with a slight chance of thunderstorms
this afternoon.
.TONIGHT...Northeast winds 10 to 15 knots, becoming north 15 to
20 knots with gusts up to 25 knots after midnight. Seas 2 to 4 feet,
occasionally to 5 feet. Wave Detail: North 3 feet at 3 seconds and
southeast 3 feet at 7 seconds. A slight chance of thunderstorms.
Showers likely, mainly in the evening.
.TUESDAY...North winds 15 to 20 knots with gusts up to 25 knots.
Seas 2 to 4 feet, occasionally to 5 feet. Wave Detail: Northwest
4 feet at 4 seconds and southeast 2 feet at 6 seconds.
.TUESDAY NIGHT...Northeast winds 10 to 15 knots. Seas 2 to 3 feet,
subsiding to 1 to 2 feet after midnight. Wave Detail: North 2 feet
at 3 seconds and southeast 1 foot at 6 seconds, becoming northeast
2 feet at 3 seconds and southeast 1 foot at 6 seconds.
.WEDNESDAY...East winds 5 to 10 knots. Seas 1 to 2 feet. Wave
Detail: East 1 foot at 3 seconds and southeast 1 foot at 6 seconds.
.WEDNESDAY 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 3 seconds and southeast 1 foot at 6 seconds. A
slight chance of showers in the evening, then a chance of showers
after midnight.
.THURSDAY...East winds 10 to 15 knots. Seas 2 to 3 feet. Wave
Detail: Southeast 2 feet at 4 seconds. Showers likely with a slight
chance of thunderstorms.
.THURSDAY NIGHT...Southeast winds 10 to 15 knots. Seas 2 to 4 feet,
occasionally to 5 feet. Wave Detail: Southeast 3 feet at 5 seconds.
A chance of showers with a slight chance of thunderstorms in the
evening, then showers likely with a chance of thunderstorms after
midnight.
.FRIDAY...Southwest winds 10 to 15 knots, becoming west in the
afternoon. Seas 2 to 4 feet, occasionally to 5 feet. Wave Detail:
South 4 feet at 5 seconds. Showers likely. A slight chance of
thunderstorms in the morning, then a chance of thunderstorms in the
afternoon.
.FRIDAY NIGHT...Northwest winds 10 to 15 knots. Seas 2 to 4 feet,
occasionally to 5 feet. Wave Detail: South 3 feet at 6 seconds and
northwest 2 feet at 3 seconds. Showers likely with a slight chance
of thunderstorms.

Winds and seas higher in and near thunderstorms.

$$

GMZ575-577-012300-
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-
437 AM CST Mon Dec 1 2025

...SMALL CRAFT ADVISORY IN EFFECT UNTIL NOON CST TODAY...
...SMALL CRAFT EXERCISE CAUTION IN EFFECT FROM NOON CST TODAY
THROUGH THIS EVENING...
...SMALL CRAFT ADVISORY IN EFFECT FROM THIS EVENING THROUGH TUESDAY
AFTERNOON...

.TODAY...East winds 15 to 20 knots, becoming around 15 knots late.
Seas 4 to 5 feet, occasionally to 6 feet. Wave Detail: Northeast
5 feet at 6 seconds. A chance of showers with a slight chance of
thunderstorms this morning, then showers likely with a chance of
thunderstorms this afternoon.
.TONIGHT...Southeast winds 15 to 20 knots, becoming west after
midnight. Seas 4 to 5 feet, occasionally to 6 feet. Wave Detail:
Southeast 4 feet at 6 seconds and west 3 feet at 4 seconds. A chance
of thunderstorms. Showers, mainly in the evening.
.TUESDAY...North winds 15 to 20 knots with gusts up to 25 knots.
Seas 4 to 6 feet, occasionally to 8 feet. Wave Detail: Northwest
5 feet at 6 seconds and southeast 3 feet at 6 seconds. A chance of
showers in the morning.
.TUESDAY NIGHT...North winds 10 to 15 knots. Seas 2 to 4 feet,
occasionally to 5 feet. Wave Detail: North 4 feet at 6 seconds and
southeast 3 feet at 6 seconds.
.WEDNESDAY...Northeast winds 5 to 10 knots. Seas around 2 feet. Wave
Detail: North 2 feet at 5 seconds and southeast 1 foot at 6 seconds.
.WEDNESDAY NIGHT...East winds 5 to 10 knots. Seas around 2 feet.
Wave Detail: East 2 feet at 5 seconds.
.THURSDAY...East winds 10 to 15 knots. Seas around 2 feet. Wave
Detail: Southeast 2 feet at 5 seconds. A chance of showers.
.THURSDAY NIGHT...Southeast winds around 15 knots. Seas 2 to 3 feet.
Wave Detail: Southeast 3 feet at 5 seconds. A chance of showers.
.FRIDAY...South winds 10 to 15 knots. Seas around 3 feet. Wave
Detail: Southeast 3 feet at 5 seconds. A slight chance of
thunderstorms. A chance of showers in the morning, then showers
likely in the afternoon.
.FRIDAY NIGHT...West winds 10 to 15 knots. Seas 3 to 4 feet,
occasionally to 5 feet. Wave Detail: West 4 feet at 5 seconds.
Showers likely. A chance of thunderstorms, mainly in the evening.

Winds and seas higher in and near thunderstorms.

$$

GMZ570-572-012300-
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-
437 AM CST Mon Dec 1 2025

...SMALL CRAFT ADVISORY IN EFFECT UNTIL NOON CST TODAY...
...SMALL CRAFT EXERCISE CAUTION IN EFFECT FROM NOON CST TODAY
THROUGH THIS EVENING...
...SMALL CRAFT ADVISORY IN EFFECT FROM THIS EVENING THROUGH TUESDAY
AFTERNOON...

.TODAY...East winds 15 to 20 knots. Seas 4 to 6 feet, occasionally
to 8 feet. Wave Detail: Northeast 6 feet at 6 seconds. A chance of
showers this morning, then showers likely with a slight chance of
thunderstorms this afternoon.
.TONIGHT...East winds around 15 knots, becoming northwest 20 to
25 knots after midnight. Seas 4 to 6 feet, occasionally to 8 feet.
Wave Detail: Northwest 5 feet at 5 seconds and east 4 feet at
7 seconds. Showers likely with a slight chance of thunderstorms in
the evening, then a chance of showers and thunderstorms after
midnight.
.TUESDAY...North winds 20 to 25 knots, diminishing to 15 to 20 knots
in the afternoon. Seas 5 to 7 feet, occasionally to 9 feet. Wave
Detail: Northwest 6 feet at 6 seconds and east 4 feet at 6 seconds.
A slight chance of showers in the morning.
.TUESDAY NIGHT...Northeast winds 10 to 15 knots. Seas 2 to 4 feet,
occasionally to 5 feet. Wave Detail: North 3 feet at 5 seconds.
.WEDNESDAY...East winds around 10 knots. Seas around 2 feet. Wave
Detail: East 2 feet at 5 seconds and northwest 1 foot at 4 seconds.
.WEDNESDAY NIGHT...Southeast winds 10 to 15 knots. Seas 2 to 3 feet.
Wave Detail: Southeast 3 feet at 5 seconds. A chance of showers
after midnight.
.THURSDAY...Southeast winds 10 to 15 knots. Seas 2 to 4 feet,
occasionally to 5 feet. Wave Detail: Southeast 3 feet at 5 seconds.
Showers likely with a slight chance of thunderstorms.
.THURSDAY NIGHT...Southeast winds around 15 knots. Seas 3 to 4 feet,
occasionally to 5 feet. Wave Detail: Southeast 4 feet at 5 seconds.
A chance of showers with a slight chance of thunderstorms.
.FRIDAY...Southwest winds around 15 knots, becoming west in the
afternoon. Seas 3 to 5 feet, occasionally to 6 feet. Wave Detail:
South 4 feet at 6 seconds. Showers likely. A slight chance of
thunderstorms in the morning, then a chance of thunderstorms in the
afternoon.
.FRIDAY NIGHT...Northwest winds around 15 knots. Seas around 4 feet,
occasionally to 5 feet. Wave Detail: West 4 feet at 5 seconds.
Showers likely with a chance of thunderstorms in the evening, then
showers likely with a slight chance of thunderstorms after midnight.

Winds and seas higher in and near thunderstorms.

$$