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

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514
FZUS54 KLIX 301726
CWFLIX

Coastal Waters Forecast
National Weather Service New Orleans LA
1226 PM CDT Sat Aug 30 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-GMZ501-310600-
1226 PM CDT Sat Aug 30 2025

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

The main concern will be daily thunderstorm activity across the
marine areas as a stalled front hangs around the coastal waters.
Locally higher winds and waves will be expected near any
thunderstorm. The front will push off more into the Gulf on Sunday
and Monday, and offshore winds will continue behind it.

$$

GMZ530-310600-
Lake Pontchartrain and Lake Maurepas-
1226 PM CDT Sat Aug 30 2025

.THIS AFTERNOON...North winds around 5 knots. Waves 1 foot or less.
A chance of showers and thunderstorms.
.TONIGHT...Northeast winds 5 to 10 knots. Waves 1 foot or less, then
1 to 2 feet after midnight. A slight chance of showers and
thunderstorms in the evening.
.SUNDAY...East winds 5 to 10 knots. Waves around 2 feet. A slight
chance of showers and thunderstorms in the afternoon.
.SUNDAY NIGHT...East winds 5 to 10 knots. Waves 1 foot or less, then
1 to 2 feet after midnight.
.MONDAY...East winds 5 to 10 knots. Waves around 2 feet. A slight
chance of showers in the morning, then a chance of showers and
thunderstorms in the afternoon.
.MONDAY NIGHT...East winds 5 to 10 knots. Waves 1 to 2 feet in the
evening, then 1 foot or less. A slight chance of thunderstorms. A
chance of showers, mainly in the evening.
.TUESDAY...East winds 5 to 10 knots. Waves 1 foot or less. A slight
chance of showers and thunderstorms in the morning, then a chance of
showers and thunderstorms in the afternoon.
.TUESDAY NIGHT...East winds around 5 knots. Waves 1 foot or less. A
slight chance of showers and thunderstorms in the evening.
.WEDNESDAY...Northwest winds around 5 knots. Waves 1 foot or less. A
slight chance of showers and thunderstorms in the afternoon.
.WEDNESDAY NIGHT...Northwest winds around 5 knots. Waves 1 foot or
less.

Winds and waves higher in and near thunderstorms.

$$

GMZ534-310600-
Lake Borgne-
1226 PM CDT Sat Aug 30 2025

.THIS AFTERNOON...Northeast winds around 5 knots. Waves 1 foot or
less. A chance of thunderstorms. A chance of showers.
.TONIGHT...Northeast winds 5 to 10 knots. Waves 1 foot or less, then
around 2 feet after midnight. A chance of showers and thunderstorms
in the evening.
.SUNDAY...Northeast winds around 10 knots. Waves around 2 feet. A
slight chance of showers and thunderstorms.
.SUNDAY NIGHT...East winds around 10 knots. Waves around 2 feet. A
slight chance of showers and thunderstorms after midnight.
.MONDAY...East winds 10 to 15 knots. Waves around 2 feet. A chance
of showers and thunderstorms.
.MONDAY NIGHT...East winds around 10 knots. Waves around 2 feet. A
chance of showers and thunderstorms.
.TUESDAY...East winds around 10 knots. Waves around 2 feet. A chance
of showers and thunderstorms.
.TUESDAY NIGHT...East winds 5 to 10 knots. Waves 1 foot or less. A
slight chance of thunderstorms. A chance of showers, mainly in the
evening.
.WEDNESDAY...North winds 5 to 10 knots. Waves 1 foot or less. A
slight chance of showers and thunderstorms.
.WEDNESDAY NIGHT...Southwest winds around 5 knots, becoming
northwest after midnight. Waves 1 foot or less.

Winds and waves higher in and near thunderstorms.

$$

GMZ532-310600-
Mississippi Sound-
1226 PM CDT Sat Aug 30 2025

.THIS AFTERNOON...Northeast winds around 5 knots. Waves 1 foot or
less. A chance of showers and thunderstorms.
.TONIGHT...Northeast winds 5 to 10 knots. Waves around 2 feet. A
slight chance of showers and thunderstorms.
.SUNDAY...East winds around 10 knots. Waves around 2 feet. A slight
chance of showers and thunderstorms.
.SUNDAY NIGHT...East winds around 10 knots. Waves around 2 feet. A
slight chance of showers and thunderstorms after midnight.
.MONDAY...East winds 10 to 15 knots. Waves 2 to 3 feet. A chance of
showers. A slight chance of thunderstorms in the morning, then a
chance of thunderstorms in the afternoon.
.MONDAY NIGHT...East winds around 10 knots. Waves around 2 feet. A
chance of showers and thunderstorms.
.TUESDAY...East winds around 10 knots. Waves around 2 feet. A chance
of showers and thunderstorms.
.TUESDAY NIGHT...East winds 5 to 10 knots. Waves around 2 feet in
the evening, then 1 foot or less. A chance of showers and
thunderstorms.
.WEDNESDAY...North winds 5 to 10 knots, becoming southwest in the
afternoon. Waves 1 foot or less. A slight chance of showers and
thunderstorms.
.WEDNESDAY NIGHT...Southwest winds 5 to 10 knots, becoming northwest
after midnight. Waves 1 foot or less, then around 2 feet after
midnight. A slight chance of showers and thunderstorms.

Winds and waves higher in and near thunderstorms.

$$

GMZ536-538-310600-
Chandeleur Sound-Breton Sound-
1226 PM CDT Sat Aug 30 2025

.THIS AFTERNOON...Northeast winds 5 to 10 knots. Waves 1 foot or
less. A chance of showers and thunderstorms.
.TONIGHT...Northeast winds 5 to 10 knots. Waves around 2 feet. A
slight chance of showers and thunderstorms in the evening, then a
chance of showers and thunderstorms after midnight.
.SUNDAY...Northeast winds 10 to 15 knots. Waves 2 to 3 feet. A
chance of showers and thunderstorms.
.SUNDAY NIGHT...East winds around 10 knots. Waves 2 to 3 feet. A
slight chance of showers and thunderstorms in the evening, then a
chance of showers and thunderstorms after midnight.
.MONDAY...East winds 10 to 15 knots. Waves 2 to 3 feet. A chance of
showers and thunderstorms.
.MONDAY NIGHT...East winds 10 to 15 knots. Waves around 2 feet. A
chance of showers and thunderstorms.
.TUESDAY...East winds around 10 knots. Waves around 2 feet. A chance
of showers and thunderstorms.
.TUESDAY NIGHT...East winds 5 to 10 knots. Waves around 2 feet in
the evening, then 1 foot or less. A chance of showers. A slight
chance of thunderstorms in the evening, then a chance of
thunderstorms after midnight.
.WEDNESDAY...Northeast winds 5 to 10 knots. Waves 1 foot or less. A
chance of showers and thunderstorms, mainly in the morning.
.WEDNESDAY NIGHT...Southwest winds 5 to 10 knots, becoming northwest
after midnight. Waves 1 foot or less. A chance of showers. A chance
of thunderstorms, mainly in the evening.

Winds and waves higher in and near thunderstorms.

$$

GMZ555-557-310600-
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-
1226 PM CDT Sat Aug 30 2025

.THIS AFTERNOON...North winds 5 to 10 knots. Seas around 2 feet.
Wave Detail: Northeast 1 foot at 3 seconds and south 1 foot at
4 seconds. A chance of showers and thunderstorms.
.TONIGHT...Northeast winds 5 to 10 knots. Seas 1 foot or less, then
around 2 feet after midnight. Wave Detail: Northeast 1 foot at
3 seconds and south 1 foot at 4 seconds. A slight chance of showers
and thunderstorms in the evening, then a chance of showers and
thunderstorms after midnight.
.SUNDAY...Northeast winds 5 to 10 knots, increasing to 10 to
15 knots in the afternoon. Seas around 2 feet. Wave Detail:
Northeast 2 feet at 4 seconds and south 1 foot at 5 seconds. A
chance of showers and thunderstorms.
.SUNDAY NIGHT...Northeast winds around 10 knots. Seas around 2 feet.
Wave Detail: Northeast 2 feet at 4 seconds. A chance of showers. A
slight chance of thunderstorms in the evening, then a chance of
thunderstorms after midnight.
.MONDAY...East winds 10 to 15 knots. Seas 2 to 3 feet. Wave Detail:
East 3 feet at 5 seconds. Showers likely with a chance of
thunderstorms.
.MONDAY NIGHT...East winds 10 to 15 knots. Seas 2 to 3 feet. Wave
Detail: East 3 feet at 5 seconds. A chance of thunderstorms. A
chance of showers in the evening, then showers likely after
midnight.
.TUESDAY...East winds around 10 knots. Seas around 2 feet. Wave
Detail: East 2 feet at 5 seconds. A chance of thunderstorms. Showers
likely.
.TUESDAY NIGHT...East winds 5 to 10 knots. Seas around 2 feet. Wave
Detail: East 2 feet at 5 seconds. A chance of showers. A slight
chance of thunderstorms in the evening, then a chance of
thunderstorms after midnight.
.WEDNESDAY...Northeast winds 5 to 10 knots. Seas around 2 feet. Wave
Detail: East 2 feet at 5 seconds. A chance of showers and
thunderstorms.
.WEDNESDAY NIGHT...Northwest winds 5 to 10 knots. Seas around
2 feet. Wave Detail: Northwest 1 foot at 2 seconds and east 1 foot
at 4 seconds. A chance of showers and thunderstorms.

Winds and seas higher in and near thunderstorms.

$$

GMZ550-552-310600-
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-
1226 PM CDT Sat Aug 30 2025

.THIS AFTERNOON...Northwest winds around 5 knots. Seas 1 foot or
less. Wave Detail: Southeast 1 foot at 4 seconds. Thunderstorms
likely. A chance of showers early, then showers likely late.
.TONIGHT...Northeast winds around 5 knots. Seas 1 foot or less. Wave
Detail: Southeast 1 foot at 4 seconds. A chance of showers and
thunderstorms.
.SUNDAY...Northeast winds 5 to 10 knots. Seas 1 foot or less. Wave
Detail: East 1 foot at 3 seconds. A chance of showers and
thunderstorms.
.SUNDAY NIGHT...East winds around 10 knots. Seas around 2 feet. Wave
Detail: East 2 feet at 4 seconds. A chance of showers and
thunderstorms.
.MONDAY...Northeast winds around 10 knots. Seas around 2 feet. Wave
Detail: East 2 feet at 3 seconds. Showers likely. A chance of
thunderstorms in the morning, then thunderstorms likely in the
afternoon.
.MONDAY NIGHT...East winds around 10 knots. Seas around 2 feet. Wave
Detail: East 2 feet at 4 seconds. A chance of thunderstorms. A
chance of showers in the evening, then showers likely after
midnight.
.TUESDAY...Northeast winds around 10 knots. Seas 1 to 2 feet. Wave
Detail: East 2 feet at 3 seconds. Showers likely with a chance of
thunderstorms.
.TUESDAY NIGHT...East winds 5 to 10 knots. Seas 1 to 2 feet. Wave
Detail: East 1 foot at 3 seconds. A chance of showers with a slight
chance of thunderstorms in the evening, then showers likely with a
chance of thunderstorms after midnight.
.WEDNESDAY...North winds 5 to 10 knots. Seas 1 to 2 feet. Wave
Detail: Northeast 1 foot at 3 seconds. A chance of showers and
thunderstorms.
.WEDNESDAY NIGHT...Northwest winds 5 to 10 knots. Seas 1 to 2 feet.
Wave Detail: Northwest 1 foot at 2 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.

$$

GMZ575-577-310600-
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-
1226 PM CDT Sat Aug 30 2025

.THIS AFTERNOON...Northwest winds 5 to 10 knots. Seas around 2 feet.
Wave Detail: Northwest 1 foot at 3 seconds and northeast 1 foot at
3 seconds. A chance of showers and thunderstorms.
.TONIGHT...Northeast winds 5 to 10 knots. Seas around 2 feet in the
evening, then 1 foot or less. Wave Detail: North 1 foot at 3 seconds
and south 1 foot at 4 seconds, becoming northeast 1 foot at
3 seconds and south 1 foot at 5 seconds. A chance of showers. A
slight chance of thunderstorms in the evening, then a chance of
thunderstorms after midnight.
.SUNDAY...North winds 5 to 10 knots. Seas around 2 feet. Wave
Detail: Northeast 1 foot at 3 seconds and south 1 foot at 4 seconds.
A chance of thunderstorms. Showers likely, mainly in the morning.
.SUNDAY NIGHT...Northeast winds around 10 knots. Seas around 2 feet.
Wave Detail: Northeast 2 feet at 4 seconds. A chance of
thunderstorms. A chance of showers in the evening, then showers
likely after midnight.
.MONDAY...East winds 10 to 15 knots. Seas 2 to 3 feet. Wave Detail:
Northeast 3 feet at 4 seconds. Showers with a chance of
thunderstorms.
.MONDAY NIGHT...East winds 10 to 15 knots. Seas 2 to 3 feet. Wave
Detail: Northeast 3 feet at 5 seconds. Showers likely with a chance
of thunderstorms.
.TUESDAY...East winds around 10 knots. Seas around 2 feet. Wave
Detail: East 2 feet at 5 seconds. A chance of thunderstorms.
Showers.
.TUESDAY NIGHT...East winds around 10 knots. Seas around 2 feet.
Wave Detail: East 2 feet at 5 seconds. Showers likely with a chance
of thunderstorms.
.WEDNESDAY...Northeast winds around 10 knots. Seas around 2 feet.
Wave Detail: Northeast 2 feet at 5 seconds. A chance of
thunderstorms. Showers likely, mainly in the morning.
.WEDNESDAY NIGHT...North winds around 10 knots, becoming northwest
after midnight. Seas around 2 feet. Wave Detail: Northeast 1 foot at
4 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.

$$

GMZ570-572-310600-
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-
1226 PM CDT Sat Aug 30 2025

.THIS AFTERNOON...Northwest winds around 5 knots. Seas around
2 feet. Wave Detail: Southeast 1 foot at 5 seconds. Showers and
thunderstorms likely early, then a chance of showers and
thunderstorms late.
.TONIGHT...Northeast winds around 5 knots, becoming southeast after
midnight. Seas around 2 feet in the evening, then 1 foot or less.
Wave Detail: Northeast 1 foot at 2 seconds and southeast 1 foot at
5 seconds, becoming southeast 1 foot at 5 seconds. A chance of
showers and thunderstorms.
.SUNDAY...Northwest winds around 5 knots, becoming north in the
afternoon. Seas 1 foot or less, then around 2 feet in the afternoon.
Wave Detail: Southeast 1 foot at 4 seconds, becoming northeast
1 foot at 3 seconds and southeast 1 foot at 4 seconds. Showers
likely. Thunderstorms likely, mainly in the morning.
.SUNDAY NIGHT...Northeast winds around 10 knots. Seas around 2 feet.
Wave Detail: East 2 feet at 4 seconds. A chance of thunderstorms. A
chance of showers in the evening, then showers likely after
midnight.
.MONDAY...Northeast winds 5 to 10 knots. Seas around 2 feet. Wave
Detail: Northeast 2 feet at 4 seconds. Showers with a chance of
thunderstorms.
.MONDAY NIGHT...East winds around 10 knots. Seas around 2 feet. Wave
Detail: East 2 feet at 4 seconds and southeast 1 foot at 8 seconds.
A chance of thunderstorms. Showers.
.TUESDAY...Northeast winds around 10 knots. Seas around 2 feet. Wave
Detail: East 2 feet at 5 seconds and south 1 foot at 8 seconds. A
chance of thunderstorms. Showers.
.TUESDAY NIGHT...Northeast winds around 10 knots. Seas around
2 feet. Wave Detail: East 2 feet at 5 seconds. A slight chance of
thunderstorms. A chance of showers in the evening, then showers
likely after midnight.
.WEDNESDAY...North winds around 10 knots. Seas around 2 feet. Wave
Detail: East 2 feet at 5 seconds. A chance of thunderstorms. Showers
likely, mainly in the morning.
.WEDNESDAY NIGHT...North winds 5 to 10 knots. Seas around 2 feet.
Wave Detail: Northeast 1 foot at 4 seconds. A slight chance of
thunderstorms. A slight chance of showers in the evening, then a
chance of showers after midnight.

Winds and seas higher in and near thunderstorms.

$$