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

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519
FZUS54 KLIX 161748
CWFLIX

Coastal Waters Forecast
National Weather Service New Orleans LA
1248 PM CDT Wed Jul 16 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-GMZ501-170630-
1248 PM CDT Wed Jul 16 2025

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

Winds will be generally offshore at 10 knots or less this afternoon
with seas under 2 feet. Increased winds and seas are likely Thursday
and Friday as a weak area of low pressure enters the coastal waters
with wind gusts to 25 knots and seas as high as 5 feet in the open
Gulf waters. Seas and winds will weaken, but remain oriented onshore
over the weekend.

$$

GMZ530-170630-
Lake Pontchartrain and Lake Maurepas-
1248 PM CDT Wed Jul 16 2025

.THIS AFTERNOON...West winds around 5 knots. Waves 1 foot or less. A
chance of thunderstorms. A chance of showers.
.TONIGHT...West winds around 5 knots, becoming northwest after
midnight. Waves 1 foot or less. A chance of thunderstorms. A chance
of showers in the evening, then showers likely after midnight.
.THURSDAY...Northeast winds 5 to 10 knots. Waves 2 to 3 feet.
Showers and thunderstorms likely.
.THURSDAY NIGHT...Southeast winds around 10 knots. Waves 2 to
3 feet. Showers likely with a chance of thunderstorms.
.FRIDAY...South winds around 10 knots. Waves 2 to 3 feet. Showers. A
chance of thunderstorms in the morning, then thunderstorms in the
afternoon.
.FRIDAY NIGHT...South winds 5 to 10 knots. Waves around 2 feet. A
slight chance of showers and thunderstorms in the evening.
.SATURDAY...South winds around 5 knots. Waves 1 foot or less. A
chance of showers and thunderstorms in the morning, then showers and
thunderstorms likely in the afternoon.
.SATURDAY NIGHT...Southwest winds around 5 knots. Waves 1 foot or
less.
.SUNDAY...Southwest winds around 5 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.
.SUNDAY NIGHT...Southwest winds around 5 knots. Waves 1 foot or
less.

Winds and waves higher in and near thunderstorms.

$$

GMZ534-170630-
Lake Borgne-
1248 PM CDT Wed Jul 16 2025

.THIS AFTERNOON...Northwest winds around 5 knots, becoming west
late. Waves 1 foot or less. A chance of thunderstorms. A chance of
showers.
.TONIGHT...West winds 5 to 10 knots, becoming north after midnight.
Waves 1 foot or less. Showers with thunderstorms likely.
.THURSDAY...Northeast winds 10 to 15 knots, becoming east with gusts
up to 20 knots in the afternoon. Waves 2 to 4 feet. Showers and
thunderstorms.
.THURSDAY NIGHT...Southeast winds 10 to 15 knots. Waves around
3 feet. Showers and thunderstorms likely in the evening, then
showers with a chance of thunderstorms after midnight.
.FRIDAY...South winds 10 to 15 knots with gusts up to 20 knots.
Waves around 3 feet. Showers and thunderstorms.
.FRIDAY NIGHT...South winds 10 to 15 knots, diminishing to 5 to
10 knots after midnight. Waves 2 to 3 feet. A chance of showers and
thunderstorms.
.SATURDAY...South winds 5 to 10 knots. Waves 1 foot or less. Showers
likely. A chance of thunderstorms in the morning, then thunderstorms
likely in the afternoon.
.SATURDAY NIGHT...Southwest winds 5 to 10 knots. Waves 1 foot or
less.
.SUNDAY...Southwest winds around 5 knots. Waves 1 foot or less. A
chance of showers and thunderstorms.
.SUNDAY NIGHT...Southwest winds 5 to 10 knots. Waves 1 foot or less.

Winds and waves higher in and near thunderstorms.

$$

GMZ532-170630-
Mississippi Sound-
1248 PM CDT Wed Jul 16 2025

.THIS AFTERNOON...Southeast winds around 5 knots, becoming southwest
late. Waves 1 foot or less. A chance of showers and thunderstorms
early, then showers and thunderstorms likely late.
.TONIGHT...West winds 5 to 10 knots, becoming northeast after
midnight. Waves 1 foot or less, then around 2 feet after midnight.
Showers with thunderstorms likely in the evening, then showers
likely with a chance of thunderstorms after midnight.
.THURSDAY...Southeast winds 10 to 15 knots. Waves 3 to 4 feet.
Showers and thunderstorms.
.THURSDAY NIGHT...South winds around 15 knots with gusts up to
20 knots. Waves 3 to 4 feet. Showers and thunderstorms likely in the
evening, then showers with a chance of thunderstorms after midnight.
.FRIDAY...South winds 10 to 15 knots with gusts up to 20 knots.
Waves 3 to 4 feet. Showers and thunderstorms.
.FRIDAY NIGHT...South winds 10 to 15 knots. Waves 2 to 3 feet. A
chance of showers and thunderstorms.
.SATURDAY...South winds 5 to 10 knots. Waves around 2 feet. A chance
of thunderstorms. Showers likely, mainly in the morning.
.SATURDAY NIGHT...Southwest winds 5 to 10 knots. Waves around
2 feet. A slight chance of showers and thunderstorms after midnight.
.SUNDAY...West winds 5 to 10 knots, becoming southwest in the
afternoon. Waves 1 foot or less, then around 2 feet in the
afternoon. A chance of showers and thunderstorms.
.SUNDAY NIGHT...Southwest winds around 10 knots. Waves around
2 feet. A slight chance of showers and thunderstorms after midnight.

Winds and waves higher in and near thunderstorms.

$$

GMZ536-538-170630-
Chandeleur Sound-Breton Sound-
1248 PM CDT Wed Jul 16 2025

.THIS AFTERNOON...Northeast winds 5 to 10 knots, becoming southwest
late. Waves 1 foot or less. A chance of showers and thunderstorms
early, then showers and thunderstorms likely late.
.TONIGHT...West winds 5 to 10 knots, becoming north after midnight.
Waves 1 foot or less, then around 2 feet after midnight. Showers and
thunderstorms.
.THURSDAY...Southeast winds 10 to 15 knots. Waves 3 to 4 feet.
Thunderstorms, showers.
.THURSDAY NIGHT...South winds around 15 knots with gusts up to
20 knots. Waves 3 to 4 feet. Thunderstorms likely. Showers.
.FRIDAY...South winds around 15 knots with gusts up to 25 knots.
Waves 3 to 4 feet. Showers and thunderstorms.
.FRIDAY NIGHT...South winds 10 to 15 knots. Waves 2 to 4 feet. A
chance of showers and thunderstorms.
.SATURDAY...South winds 5 to 10 knots. Waves around 2 feet. Showers
and thunderstorms likely, mainly in the morning.
.SATURDAY NIGHT...Southwest winds 5 to 10 knots. Waves around
2 feet. A slight chance of showers and thunderstorms after midnight.
.SUNDAY...West winds 5 to 10 knots, becoming south in the afternoon.
Waves 1 foot or less, then 1 to 2 feet in the afternoon. A chance of
showers and thunderstorms.
.SUNDAY NIGHT...Southwest winds 5 to 10 knots. Waves around 2 feet.
A slight chance of showers and thunderstorms after midnight.

Winds and waves higher in and near thunderstorms.

$$

GMZ555-557-170630-
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-
1248 PM CDT Wed Jul 16 2025

.THIS AFTERNOON...East winds 5 to 10 knots, becoming southwest late.
Seas around 2 feet. Wave Detail: Northwest 1 foot at 3 seconds and
northeast 1 foot at 3 seconds. Showers and thunderstorms likely.
.TONIGHT...Northwest winds 5 to 10 knots, becoming northeast after
midnight. Seas 1 foot or less. Wave Detail: Northeast 1 foot at
3 seconds. Showers, thunderstorms.
.THURSDAY...South winds 10 to 15 knots. Seas 2 to 4 feet,
occasionally to 5 feet. Wave Detail: Southeast 4 feet at 4 seconds.
Thunderstorms likely. Showers.
.THURSDAY NIGHT...South winds 15 to 20 knots. Seas 3 to 5 feet,
occasionally to 6 feet. Wave Detail: South 5 feet at 6 seconds.
Showers with thunderstorms likely.
.FRIDAY...South winds 10 to 15 knots with gusts up to 25 knots. Seas
3 to 5 feet, occasionally to 6 feet. Wave Detail: South 5 feet at
6 seconds. Showers and thunderstorms.
.FRIDAY NIGHT...South winds 10 to 15 knots. Seas 2 to 3 feet. Wave
Detail: South 3 feet at 5 seconds. A chance of showers and
thunderstorms.
.SATURDAY...South winds 5 to 10 knots. Seas around 2 feet. Wave
Detail: South 2 feet at 4 seconds. Showers and thunderstorms likely,
mainly in the morning.
.SATURDAY NIGHT...South winds 5 to 10 knots. Seas around 2 feet.
Wave Detail: South 2 feet at 7 seconds. A slight chance of showers
and thunderstorms after midnight.
.SUNDAY...Southwest winds 5 to 10 knots. Seas around 2 feet. Wave
Detail: Southeast 2 feet at 6 seconds. A chance of showers and
thunderstorms, mainly in the morning.
.SUNDAY NIGHT...Southwest winds 5 to 10 knots. Seas around 2 feet.
Wave Detail: Southeast 2 feet at 6 seconds. A slight chance of
showers and thunderstorms after midnight.

Winds and seas higher in and near thunderstorms.

$$

GMZ550-552-170630-
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-
1248 PM CDT Wed Jul 16 2025

.THIS AFTERNOON...Northwest winds 5 to 10 knots, becoming southwest
late. Seas 1 foot or less. Wave Detail: Northwest 1 foot at
3 seconds. A chance of showers and thunderstorms early, then showers
and thunderstorms likely late.
.TONIGHT...Northwest winds 5 to 10 knots. Seas 1 foot or less. Wave
Detail: West 1 foot at 2 seconds. Thunderstorms likely with a chance
of showers in the evening, then showers and thunderstorms after
midnight.
.THURSDAY...Northwest winds 10 to 15 knots, becoming west in the
afternoon. Seas around 2 feet. Wave Detail: Northwest 2 feet at
3 seconds. Thunderstorms. Showers, mainly in the morning.
.THURSDAY NIGHT...South winds 10 to 15 knots with gusts up to
20 knots. Seas 2 to 4 feet, occasionally to 5 feet. Wave Detail:
Southwest 4 feet at 5 seconds. Showers with a chance of
thunderstorms in the evening, then showers with thunderstorms likely
after midnight.
.FRIDAY...Southwest winds 10 to 15 knots with gusts up to 20 knots.
Seas 2 to 4 feet, occasionally to 5 feet. Wave Detail: Southwest
4 feet at 5 seconds. Thunderstorms likely. Showers.
.FRIDAY NIGHT...South winds around 10 knots. Seas 2 to 3 feet. Wave
Detail: Southwest 3 feet at 5 seconds. A chance of showers and
thunderstorms.
.SATURDAY...South winds 5 to 10 knots. Seas 1 to 2 feet. Wave
Detail: Southwest 2 feet at 5 seconds. Showers and thunderstorms
likely, mainly in the morning.
.SATURDAY NIGHT...South winds around 5 knots. Seas 1 to 2 feet. Wave
Detail: South 2 feet at 5 seconds. A chance of showers and
thunderstorms after midnight.
.SUNDAY...South winds around 5 knots. Seas 1 to 2 feet. Wave Detail:
Southeast 2 feet at 6 seconds. A chance of showers and
thunderstorms.
.SUNDAY NIGHT...South winds around 5 knots. Seas 1 to 2 feet. Wave
Detail: Southeast 2 feet at 6 seconds. A slight chance of showers
and thunderstorms after midnight.

Winds and seas higher in and near thunderstorms.

$$

GMZ575-577-170630-
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-
1248 PM CDT Wed Jul 16 2025

.THIS AFTERNOON...North winds 5 to 10 knots, becoming west late.
Seas around 2 feet. Wave Detail: Northwest 2 feet at 4 seconds and
northeast 1 foot at 4 seconds. Showers and thunderstorms.
.TONIGHT...Northwest winds 5 to 10 knots, becoming southeast after
midnight. Seas around 2 feet in the evening, then 1 foot or less.
Wave Detail: North 1 foot at 4 seconds, becoming east 1 foot at
3 seconds and northwest 1 foot at 3 seconds. Thunderstorms likely.
Showers.
.THURSDAY...South winds 10 to 15 knots with gusts up to 20 knots.
Seas 2 to 3 feet, building to 3 to 5 feet, occasionally to 6 feet in
the afternoon. Wave Detail: Southeast 3 feet at 4 seconds and
southwest 2 feet at 3 seconds, becoming south 5 feet at 5 seconds.
Thunderstorms likely. Showers.
.THURSDAY NIGHT...South winds around 15 knots with gusts up to
20 knots. Seas 4 to 5 feet, occasionally to 6 feet. Wave Detail:
South 5 feet at 5 seconds. Showers. Thunderstorms likely, mainly in
the evening.
.FRIDAY...South winds 10 to 15 knots with gusts up to 25 knots. Seas
3 to 5 feet, occasionally to 6 feet. Wave Detail: South 5 feet at
5 seconds. Showers with thunderstorms likely in the morning, then
showers likely with a chance of thunderstorms in the afternoon.
.FRIDAY NIGHT...South winds around 10 knots. Seas 2 to 3 feet. Wave
Detail: Southwest 3 feet at 5 seconds. A slight chance of showers
and thunderstorms in the evening, then a chance of showers and
thunderstorms after midnight.
.SATURDAY...South winds 5 to 10 knots. Seas around 2 feet. Wave
Detail: Southwest 2 feet at 5 seconds. A chance of thunderstorms.
Showers likely, mainly in the morning.
.SATURDAY NIGHT...South winds 5 to 10 knots. Seas around 2 feet.
Wave Detail: Southeast 2 feet at 7 seconds. A slight chance of
showers and thunderstorms after midnight.
.SUNDAY...South winds around 5 knots. Seas around 2 feet. Wave
Detail: Southeast 2 feet at 6 seconds. A chance of showers and
thunderstorms, mainly in the morning.
.SUNDAY NIGHT...Southwest winds 5 to 10 knots. Seas around 2 feet.
Wave Detail: Southeast 2 feet at 6 seconds. A slight chance of
showers and thunderstorms after midnight.

Winds and seas higher in and near thunderstorms.

$$

GMZ570-572-170630-
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-
1248 PM CDT Wed Jul 16 2025

.THIS AFTERNOON...North winds around 10 knots, becoming southwest
late. Seas around 2 feet. Wave Detail: North 2 feet at 4 seconds and
southwest 1 foot at 5 seconds. Showers and thunderstorms likely
early, then a chance of showers and thunderstorms late.
.TONIGHT...Northwest winds 5 to 10 knots. Seas 1 foot or less. Wave
Detail: North 1 foot at 3 seconds and southwest 1 foot at 5 seconds.
A chance of showers and thunderstorms in the evening, then showers
with thunderstorms likely after midnight.
.THURSDAY...West winds 10 to 15 knots. Seas 2 to 3 feet. Wave
Detail: Northwest 3 feet at 4 seconds. Showers and thunderstorms,
mainly in the morning.
.THURSDAY NIGHT...Southwest winds 10 to 15 knots with gusts up to
20 knots. Seas 2 to 4 feet, occasionally to 5 feet. Wave Detail:
Southwest 4 feet at 5 seconds. A chance of thunderstorms. Showers.
.FRIDAY...South winds 10 to 15 knots with gusts up to 20 knots. Seas
3 to 4 feet, occasionally to 5 feet. Wave Detail: Southwest 4 feet
at 5 seconds. Showers with thunderstorms likely in the morning, then
showers with a chance of thunderstorms in the afternoon.
.FRIDAY NIGHT...South winds around 10 knots. Seas 2 to 3 feet. Wave
Detail: Southwest 3 feet at 5 seconds. A chance of showers. A slight
chance of thunderstorms in the evening, then a chance of
thunderstorms after midnight.
.SATURDAY...South winds 5 to 10 knots. Seas around 2 feet. Wave
Detail: Southwest 2 feet at 5 seconds. A chance of thunderstorms.
Showers likely, mainly in the morning.
.SATURDAY NIGHT...South winds 5 to 10 knots. Seas around 2 feet.
Wave Detail: Southeast 2 feet at 6 seconds. A chance of showers and
thunderstorms after midnight.
.SUNDAY...South winds around 5 knots. Seas around 2 feet. Wave
Detail: Southeast 2 feet at 6 seconds. A chance of showers and
thunderstorms.
.SUNDAY NIGHT...South winds around 5 knots. Seas around 2 feet. Wave
Detail: Southeast 2 feet at 6 seconds. A slight chance of showers
and thunderstorms after midnight.

Winds and seas higher in and near thunderstorms.

$$