330
FZUS54 KLIX 211036
CWFLIX

Coastal Waters Forecast
National Weather Service New Orleans LA
535 AM CDT Tue Jul 21 2026

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-GMZ501-212300-
535 AM CDT Tue Jul 21 2026

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

Tropical Storm Bertha will meander over the northeast gulf for the
next day or so. It is forecast to move westward along or off the
north central gulf coast. As the system moves over our local waters,
expect winds and seas to increase with tropical storm conditions
possible for most if not all the local waters. The system will move
west of the region later Thursday and conditions should improve
going into the upcoming weekend.

$$

GMZ529-212300-
Lake Maurepas-
535 AM CDT Tue Jul 21 2026

...TROPICAL STORM WATCH IN EFFECT...

.TODAY...North winds 5 to 10 knots. Seas 1 foot or less. A slight
chance of showers and thunderstorms late this morning. A chance of
showers and thunderstorms this afternoon.
.TONIGHT...North winds around 5 knots. Seas 1 foot or less. A chance
of showers and thunderstorms early in the evening, then a slight
chance of showers and thunderstorms late in the evening.
.WEDNESDAY...North winds 5 to 10 knots. Seas around 2 feet. A slight
chance of showers and thunderstorms early in the afternoon. A chance
of showers and thunderstorms late.
.WEDNESDAY NIGHT...Northeast winds 5 to 10 knots, becoming east
20 to 25 knots with gusts up to 45 knots after midnight. Seas 2 to
4 feet, occasionally to 5 feet. A chance of thunderstorms in the
evening. A chance of showers. A slight chance of thunderstorms after
midnight.
.THURSDAY...East winds 20 to 25 knots with gusts up to 45 knots,
becoming southeast 15 to 20 knots with gusts up to 35 knots in the
afternoon. Seas around 4 feet, occasionally to 5 feet, subsiding to
2 to 3 feet in the afternoon. A chance of showers. A chance of
thunderstorms in the late morning and afternoon.
.THURSDAY NIGHT...Southwest winds around 5 knots. Gusts up to
20 knots in the evening. Seas 1 foot or less. A chance of showers
and thunderstorms early in the evening.
.FRIDAY...Southwest winds around 5 knots. Seas 1 foot or less. A
slight chance of showers and thunderstorms in the afternoon.
.FRIDAY NIGHT...Southwest winds around 5 knots. Seas 1 foot or less.
A slight chance of showers and thunderstorms early in the evening. A
slight chance of showers and thunderstorms after midnight.
.SATURDAY...Southwest winds around 5 knots. Seas 1 foot or less. A
chance of thunderstorms. A chance of showers.
.SATURDAY NIGHT...Southwest winds around 5 knots. Seas 1 foot or
less. A chance of showers and thunderstorms early in the evening.

Winds and seas higher in and near thunderstorms.

$$

GMZ531-212300-
Lake Pontchartrain-
535 AM CDT Tue Jul 21 2026

...TROPICAL STORM WATCH IN EFFECT...

.TODAY...North winds 5 to 10 knots. Seas around 2 feet. A slight
chance of showers and thunderstorms early this afternoon. A chance
of showers and thunderstorms late.
.TONIGHT...North winds 5 to 10 knots. Seas around 2 feet. A slight
chance of showers and thunderstorms early in the evening.
.WEDNESDAY...North winds 10 to 15 knots with gusts up to 20 knots.
Seas 2 to 3 feet. A slight chance of showers and thunderstorms early
in the afternoon. A chance of showers and thunderstorms late.
.WEDNESDAY NIGHT...Northeast winds 10 to 15 knots with gusts up to
25 knots, becoming southeast 20 to 25 knots with gusts up to
45 knots after midnight. Seas 2 to 4 feet, occasionally to 5 feet. A
chance of thunderstorms in the evening. A chance of showers. A
slight chance of thunderstorms after midnight.
.THURSDAY...Southeast winds 20 to 25 knots with gusts up to
45 knots, becoming south 15 to 20 knots with gusts up to 35 knots in
the afternoon. Seas 2 to 4 feet, occasionally to 5 feet. A chance of
showers. A slight chance of thunderstorms early in the morning, then
a chance of thunderstorms in the late morning and afternoon.
.THURSDAY NIGHT...Southwest winds 5 to 10 knots. Seas 1 foot or
less. A chance of showers and thunderstorms early in the evening.
.FRIDAY...Southwest winds around 5 knots. Seas 1 foot or less. A
slight chance of showers and thunderstorms in the morning, then a
chance of showers and thunderstorms in the afternoon.
.FRIDAY NIGHT...Southwest winds 5 to 10 knots. Seas 1 foot or less.
A chance of showers and thunderstorms early in the evening. A slight
chance of showers and thunderstorms after midnight.
.SATURDAY...Southwest winds around 5 knots. Seas 1 foot or less. A
chance of thunderstorms. A chance of showers.
.SATURDAY NIGHT...Southwest winds 5 to 10 knots. Seas around 2 feet.
A chance of showers and thunderstorms early in the evening.

Winds and seas higher in and near thunderstorms.

$$

GMZ532-212300-
Mississippi Sound-
535 AM CDT Tue Jul 21 2026

...TROPICAL STORM WARNING IN EFFECT...

.TODAY...North winds 10 to 15 knots with gusts up to 20 knots. Waves
2 to 3 feet. A slight chance of showers and thunderstorms this
afternoon.
.TONIGHT...Northeast winds 10 to 15 knots, increasing to 15 to
20 knots after midnight. Waves 2 to 4 feet. A slight chance of
showers and thunderstorms.
.WEDNESDAY...Tropical storm conditions possible. North winds 15 to
20 knots with gusts up to 25 knots, becoming northeast 25 to
30 knots with gusts up to 40 knots in the afternoon. Waves 3 to
5 feet. A slight chance of showers and thunderstorms early in the
morning, then a chance of showers and thunderstorms in the late
morning and afternoon.
.WEDNESDAY NIGHT...East winds 25 to 30 knots with gusts up to
45 knots, becoming south 20 to 25 knots with gusts up to 35 knots
after midnight. Waves 3 to 5 feet. A chance of thunderstorms in the
evening. Showers likely. A slight chance of thunderstorms after
midnight.
.THURSDAY...South winds 15 to 20 knots, diminishing to 10 to
15 knots in the afternoon. Waves 2 to 3 feet. A chance of showers. A
slight chance of thunderstorms early in the morning, then a chance
of thunderstorms in the late morning and afternoon.
.THURSDAY NIGHT...Southwest winds 10 to 15 knots, diminishing to
5 to 10 knots after midnight. Waves around 2 feet. A chance of
showers and thunderstorms early in the evening, then a slight chance
of showers and thunderstorms late in the evening. A chance of
showers and thunderstorms after midnight.
.FRIDAY...Southwest winds 5 to 10 knots. Waves around 2 feet. A
chance of showers and thunderstorms until late afternoon, then a
slight chance of showers and thunderstorms late.
.FRIDAY NIGHT...Southwest winds 5 to 10 knots. Waves around 2 feet.
A slight chance of showers and thunderstorms early in the evening. A
chance of showers and thunderstorms after midnight.
.SATURDAY...West winds 5 to 10 knots, becoming southwest 10 to
15 knots in the afternoon. Waves 2 to 3 feet. A chance of
thunderstorms. A chance of showers.
.SATURDAY NIGHT...Southwest winds 10 to 15 knots. Waves 2 to 3 feet.
A chance of showers and thunderstorms early in the evening, then a
slight chance of showers and thunderstorms late in the evening. A
chance of showers and thunderstorms after midnight.

Winds and waves higher in and near thunderstorms.

$$

GMZ533-212300-
Lake Salvador and Lake Cataouatche-
535 AM CDT Tue Jul 21 2026

...TROPICAL STORM WATCH IN EFFECT...

.TODAY...North winds 5 to 10 knots. Seas around 2 feet. A chance of
showers and thunderstorms this afternoon.
.TONIGHT...North winds 5 to 10 knots. Seas 1 foot or less, then
around 2 feet after midnight. A chance of showers and thunderstorms
early in the evening, then a slight chance of showers and
thunderstorms late in the evening.
.WEDNESDAY...Northwest winds around 10 knots. Seas around 2 feet. A
chance of showers and thunderstorms in the afternoon.
.WEDNESDAY NIGHT...Northeast winds 20 to 25 knots, becoming
southeast 25 to 30 knots after midnight. Gusts up to 45 knots. Seas
3 to 5 feet, occasionally to 6 feet. A chance of thunderstorms. A
chance of showers early in the evening, then showers likely in the
late evening and overnight.
.THURSDAY...Southeast winds 20 to 25 knots, becoming south 15 to
20 knots in the afternoon. Gusts up to 35 knots. Seas around 4 feet,
occasionally to 5 feet, subsiding to 2 to 3 feet in the afternoon.
Showers likely with a slight chance of thunderstorms early in the
morning, then a chance of showers and thunderstorms in the late
morning and afternoon.
.THURSDAY NIGHT...Southwest winds around 5 knots. Seas 1 foot or
less. A chance of showers and thunderstorms early in the evening. A
slight chance of showers and thunderstorms after midnight.
.FRIDAY...Southwest winds around 5 knots. Seas 1 foot or less. A
chance of showers and thunderstorms.
.FRIDAY NIGHT...Southwest winds around 5 knots. Seas 1 foot or less.
A chance of showers and thunderstorms early in the evening. A slight
chance of showers and thunderstorms after midnight.
.SATURDAY...Southwest winds around 5 knots, increasing to 5 to
10 knots in the afternoon. Seas 1 foot or less. A chance of
thunderstorms. A chance of showers.
.SATURDAY NIGHT...Southwest winds 5 to 10 knots. Seas 1 foot or
less. A chance of showers and thunderstorms early in the evening.

Winds and seas higher in and near thunderstorms.

$$

GMZ534-212300-
Lake Borgne-
535 AM CDT Tue Jul 21 2026

...TROPICAL STORM WARNING IN EFFECT...

.TODAY...North winds 5 to 10 knots. Waves around 2 feet. A slight
chance of showers and thunderstorms this afternoon.
.TONIGHT...North winds 10 to 15 knots. Waves 2 to 3 feet. A slight
chance of showers and thunderstorms early in the evening.
.WEDNESDAY...North winds 15 to 20 knots, diminishing to 10 to
15 knots in the afternoon. Waves 2 to 4 feet. A chance of showers
and thunderstorms in the afternoon.
.WEDNESDAY NIGHT...East winds 25 to 30 knots, becoming south 20 to
25 knots after midnight. Gusts up to 50 knots. Waves 4 to 5 feet. A
chance of thunderstorms.
.THURSDAY...South winds 20 to 25 knots with gusts up to 40 knots,
diminishing to 10 to 15 knots with gusts up to 20 knots in the
afternoon. Waves 3 to 4 feet, subsiding to 2 feet in the afternoon.
A chance of showers. A slight chance of thunderstorms early in the
morning, then a chance of thunderstorms in the late morning and
afternoon.
.THURSDAY NIGHT...Southwest winds 5 to 10 knots. Waves around
2 feet. A chance of showers and thunderstorms early in the evening,
then a slight chance of showers and thunderstorms in the late
evening and overnight.
.FRIDAY...Southwest winds 5 to 10 knots. Waves 1 foot or less. A
chance of showers and thunderstorms until late afternoon, then a
slight chance of showers and thunderstorms late.
.FRIDAY NIGHT...Southwest winds 5 to 10 knots. Waves around 2 feet.
A slight chance of showers and thunderstorms early in the evening. A
slight chance of showers and thunderstorms after midnight.
.SATURDAY...Southwest winds 5 to 10 knots. Waves 1 foot or less. A
chance of thunderstorms. A chance of showers.
.SATURDAY NIGHT...Southwest winds 5 to 10 knots. Waves around
2 feet. A chance of showers and thunderstorms early in the evening.
A slight chance of showers and thunderstorms after midnight.

Winds and waves higher in and near thunderstorms.

$$

GMZ535-212300-
Breton Sound-
535 AM CDT Tue Jul 21 2026

...TROPICAL STORM WARNING IN EFFECT...

.TODAY...North winds 10 to 15 knots with gusts up to 20 knots. Seas
2 to 3 feet. A slight chance of showers and thunderstorms early this
afternoon. A chance of showers and thunderstorms late.
.TONIGHT...Tropical storm conditions possible. North winds 10 to
15 knots, increasing to 15 to 20 knots after midnight. Seas 2 to
4 feet, occasionally to 5 feet. A chance of thunderstorms. A chance
of showers.
.WEDNESDAY...Tropical storm conditions expected. North winds 25 to
30 knots. Gusts up to 45 knots in the afternoon. Seas 4 to 6 feet,
occasionally to 8 feet. Wave Detail: Northeast 1 foot at 2 seconds.
A chance of showers and thunderstorms early in the morning, then a
slight chance of showers and thunderstorms late in the morning. A
chance of showers and thunderstorms in the afternoon.
.WEDNESDAY NIGHT...Southeast winds 20 to 25 knots with gusts up to
35 knots, becoming south 25 to 30 knots with gusts up to 45 knots
after midnight. Seas 4 to 6 feet, occasionally to 8 feet. Wave
Detail: Northeast 1 foot at 2 seconds. Showers likely with a chance
of thunderstorms.
.THURSDAY...South winds 20 to 25 knots with gusts up to 40 knots,
becoming southwest 10 to 15 knots with gusts up to 25 knots in the
afternoon. Seas 3 to 5 feet, occasionally to 6 feet, subsiding to
2 to 3 feet in the afternoon. A chance of thunderstorms. Showers
likely early in the morning, then a chance of showers in the late
morning and afternoon.
.THURSDAY NIGHT...Southwest winds 10 to 15 knots, diminishing to
5 to 10 knots after midnight. Seas around 2 feet. A chance of
showers and thunderstorms early in the evening, then a slight chance
of showers and thunderstorms late in the evening. A chance of
showers and thunderstorms after midnight.
.FRIDAY...Southwest winds 5 to 10 knots. Seas around 2 feet. A
chance of showers and thunderstorms until late afternoon, then a
slight chance of showers and thunderstorms late.
.FRIDAY NIGHT...Southwest winds 5 to 10 knots. Seas around 2 feet. A
slight chance of showers and thunderstorms early in the evening. A
chance of showers and thunderstorms after midnight.
.SATURDAY...Southwest winds 5 to 10 knots. Seas around 2 feet. A
chance of showers and thunderstorms.
.SATURDAY NIGHT...Southwest winds 10 to 15 knots. Seas 2 to 3 feet.
A chance of thunderstorms in the evening. A chance of showers. A
slight chance of thunderstorms after midnight.

Winds and seas higher in and near thunderstorms.

$$

GMZ536-212300-
Chandeleur Sound-
535 AM CDT Tue Jul 21 2026

...TROPICAL STORM WARNING IN EFFECT...

.TODAY...North winds 10 to 15 knots with gusts up to 20 knots. Waves
2 to 3 feet. A slight chance of showers and thunderstorms this
afternoon.
.TONIGHT...Tropical storm conditions possible. Northeast winds 15 to
20 knots with gusts up to 25 knots. Waves 3 to 4 feet. A chance of
showers and thunderstorms.
.WEDNESDAY...Tropical storm conditions expected. North winds 25 to
30 knots with gusts up to 40 knots. Waves 4 to 6 feet. A chance of
showers. A slight chance of thunderstorms early in the morning, then
a chance of thunderstorms in the late morning and afternoon.
.WEDNESDAY NIGHT...Southeast winds 25 to 30 knots, becoming south
after midnight. Waves 4 to 6 feet. Showers likely with a chance of
thunderstorms.
.THURSDAY...South winds 15 to 20 knots with gusts up to 30 knots,
diminishing to 10 to 15 knots with gusts up to 20 knots in the
afternoon. Waves 3 to 4 feet. A chance of thunderstorms. Showers
likely early in the morning, then a chance of showers in the late
morning and afternoon.
.THURSDAY NIGHT...Southwest winds 10 to 15 knots, diminishing to
5 to 10 knots after midnight. Waves 2 to 3 feet. A chance of showers
and thunderstorms early in the evening, then a slight chance of
showers and thunderstorms late in the evening. A chance of showers
and thunderstorms after midnight.
.FRIDAY...Southwest winds 5 to 10 knots. Waves around 2 feet. A
chance of showers and thunderstorms until late afternoon, then a
slight chance of showers and thunderstorms late.
.FRIDAY NIGHT...Southwest winds 5 to 10 knots. Waves around 2 feet.
A slight chance of showers and thunderstorms early in the evening. A
chance of showers and thunderstorms after midnight.
.SATURDAY...Southwest winds 5 to 10 knots, increasing to 10 to
15 knots in the afternoon. Waves 2 to 3 feet. A chance of showers
and thunderstorms.
.SATURDAY NIGHT...Southwest winds 10 to 15 knots. Waves around
3 feet. A chance of showers and thunderstorms early in the evening,
then a slight chance of showers and thunderstorms late in the
evening. A chance of showers and thunderstorms after midnight.

Winds and waves higher in and near thunderstorms.

$$

GMZ541-212300-
Terrebonne Bay-
535 AM CDT Tue Jul 21 2026

...TROPICAL STORM WATCH IN EFFECT...

.TODAY...Northwest winds 10 to 15 knots with gusts up to 20 knots.
Seas 1 foot or less. Wave Detail: Northwest 1 foot at 2 seconds.
Showers and thunderstorms likely this afternoon.
.TONIGHT...Northwest winds 15 to 20 knots with gusts up to 25 knots.
Seas 2 to 3 feet. Wave Detail: Northwest 1 foot at 2 seconds. A
chance of thunderstorms. Showers likely, mainly in the evening.
.WEDNESDAY...Northwest winds 15 to 20 knots with gusts up to
25 knots. Seas around 2 feet. Wave Detail: Northwest 1 foot at
2 seconds. A chance of showers in the morning. A chance of
thunderstorms. Showers in the afternoon.
.WEDNESDAY NIGHT...Tropical storm conditions possible. Northwest
winds 30 to 35 knots with gusts up to 50 knots, becoming south 25 to
30 knots with gusts up to 40 knots after midnight. Seas 3 to 5 feet,
occasionally to 6 feet. Wave Detail: West 1 foot at 2 seconds. A
chance of thunderstorms. Showers.
.THURSDAY...South winds 25 to 30 knots with gusts up to 40 knots,
becoming southwest 15 to 20 knots with gusts up to 30 knots in the
afternoon. Seas 4 to 6 feet, occasionally to 8 feet, subsiding to
2 feet in the afternoon. Wave Detail: South 2 feet at 2 seconds. A
chance of thunderstorms. Showers early in the morning, then a chance
of showers in the late morning and afternoon.
.THURSDAY NIGHT...Southwest winds 10 to 15 knots with gusts up to
20 knots, diminishing to 5 to 10 knots after midnight. Seas around
2 feet. Wave Detail: Southwest 1 foot at 2 seconds. A chance of
showers and thunderstorms early in the evening, then a slight chance
of showers and thunderstorms late in the evening. A chance of
showers and thunderstorms after midnight.
.FRIDAY...Southwest winds 5 to 10 knots. Seas 1 foot or less. Wave
Detail: Southwest 1 foot at 2 seconds. A chance of showers and
thunderstorms until late afternoon, then a slight chance of showers
and thunderstorms late.
.FRIDAY NIGHT...Southwest winds 5 to 10 knots. Seas 1 foot or less.
A slight chance of showers and thunderstorms early in the evening. A
chance of showers and thunderstorms after midnight.
.SATURDAY...Southwest winds 5 to 10 knots. Seas 1 foot or less. A
chance of showers and thunderstorms until late afternoon, then a
slight chance of showers and thunderstorms late.
.SATURDAY NIGHT...Southwest winds 5 to 10 knots, increasing to 10 to
15 knots after midnight. Seas 1 foot or less. A slight chance of
showers and thunderstorms early in the evening. A slight chance of
showers and thunderstorms after midnight.

Winds and seas higher in and near thunderstorms.

$$

GMZ543-212300-
Barataria Bay-
535 AM CDT Tue Jul 21 2026

...TROPICAL STORM WATCH IN EFFECT...

.TODAY...North winds 5 to 10 knots. Seas 1 foot or less. A chance of
showers and thunderstorms this afternoon.
.TONIGHT...North winds 5 to 10 knots, becoming northwest 10 to
15 knots with gusts up to 20 knots after midnight. Seas around
2 feet. A chance of thunderstorms. A chance of showers.
.WEDNESDAY...Tropical storm conditions possible. Northwest winds
15 to 20 knots, increasing to 30 to 35 knots with gusts up to
50 knots in the afternoon. Seas 2 to 3 feet. A chance of showers and
thunderstorms early in the morning, then a slight chance of showers
and thunderstorms late in the morning. A chance of showers and
thunderstorms in the afternoon.
.WEDNESDAY NIGHT...Tropical storm conditions possible. Northwest
winds 25 to 30 knots, becoming southeast after midnight. Gusts up to
45 knots in the evening. Seas 4 to 5 feet, occasionally to 6 feet,
subsiding to 2 to 4 feet, occasionally to 5 feet after midnight. A
chance of thunderstorms. Showers.
.THURSDAY...South winds 20 to 25 knots with gusts up to 40 knots,
becoming southwest 10 to 15 knots with gusts up to 25 knots in the
afternoon. Seas 3 to 5 feet, occasionally to 6 feet, subsiding to
2 feet in the afternoon. Wave Detail: Southeast 1 foot at 2 seconds.
Showers likely in the morning. A chance of thunderstorms. A chance
of showers in the afternoon.
.THURSDAY NIGHT...Southwest winds 5 to 10 knots. Seas around 2 feet.
A slight chance of showers and thunderstorms in the evening, then a
chance of showers and thunderstorms after midnight.
.FRIDAY...Southwest winds 5 to 10 knots. Seas 1 foot or less. A
chance of showers and thunderstorms.
.FRIDAY NIGHT...Southwest winds 5 to 10 knots. Seas 1 foot or less.
A chance of showers and thunderstorms early in the evening. A chance
of showers and thunderstorms after midnight.
.SATURDAY...Southwest winds 5 to 10 knots. Seas 1 foot or less. A
chance of showers and thunderstorms until late afternoon, then a
slight chance of showers and thunderstorms late.
.SATURDAY NIGHT...Southwest winds 5 to 10 knots. Seas 1 foot or
less. A slight chance of showers and thunderstorms early in the
evening. A slight chance of showers and thunderstorms after
midnight.

Winds and seas higher in and near thunderstorms.

$$

GMZ551-212300-
Coastal Waters from Port Fourchon LA to Lower Atchafalaya River LA
out 20 nm-
535 AM CDT Tue Jul 21 2026

...TROPICAL STORM WATCH IN EFFECT...

.TODAY...Northwest winds 15 to 20 knots with gusts up to 25 knots.
Seas 2 to 4 feet, occasionally to 5 feet. Wave Detail: West 4 feet
at 4 seconds. A slight chance of showers and thunderstorms this
morning, then showers and thunderstorms likely this afternoon.
.TONIGHT...West 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 5 seconds and east 1 foot at 8 seconds. Showers and thunderstorms
likely early in the evening, then showers likely with a chance of
thunderstorms in the late evening and overnight.
.WEDNESDAY...Tropical storm conditions possible. Northwest winds
15 to 20 knots, becoming west 20 to 25 knots in the afternoon. Seas
2 to 4 feet, occasionally to 5 feet. Wave Detail: West 4 feet at
6 seconds. A chance of showers in the morning. A chance of
thunderstorms. Showers likely in the afternoon.
.WEDNESDAY NIGHT...Tropical storm conditions possible. West winds
30 to 35 knots with gusts up to 50 knots. Seas 4 to 6 feet,
occasionally to 8 feet. Wave Detail: Southwest 6 feet at 6 seconds.
Showers with a chance of thunderstorms.
.THURSDAY...South winds 25 to 30 knots with gusts up to 40 knots,
becoming southwest 15 to 20 knots with gusts up to 25 knots in the
afternoon. Seas 4 to 6 feet, occasionally to 8 feet, subsiding to
2 to 4 feet, occasionally to 5 feet in the afternoon. Wave Detail:
West 6 feet at 5 seconds. Showers in the morning. A chance of
thunderstorms. A chance of showers in the afternoon.
.THURSDAY NIGHT...Southwest winds 10 to 15 knots. Seas 2 to 4 feet,
occasionally to 5 feet. Wave Detail: South 4 feet at 6 seconds. A
slight chance of showers and thunderstorms in the evening, then a
chance of showers and thunderstorms after midnight.
.FRIDAY...Southwest winds 5 to 10 knots. Seas 2 to 3 feet. Wave
Detail: Southwest 2 feet at 6 seconds. A chance of showers and
thunderstorms until late afternoon, then a slight chance of showers
and thunderstorms late.
.FRIDAY NIGHT...Southwest winds 5 to 10 knots. Seas around 2 feet.
Wave Detail: Southwest 2 feet at 5 seconds. A slight chance of
showers and thunderstorms early in the evening. A chance of showers
and thunderstorms after midnight.
.SATURDAY...Southwest winds 5 to 10 knots. Seas around 2 feet. Wave
Detail: Southwest 2 feet at 4 seconds. A chance of showers and
thunderstorms until late afternoon, then a slight chance of showers
and thunderstorms late.
.SATURDAY NIGHT...Southwest winds 5 to 10 knots, increasing to 10 to
15 knots after midnight. Seas around 2 feet. Wave Detail: South
2 feet at 4 seconds. A slight chance of showers and thunderstorms
early in the evening. A slight chance of showers and thunderstorms
after midnight.

Winds and seas higher in and near thunderstorms.

$$

GMZ553-212300-
Coastal Waters from Southwest Pass of the Mississippi River to Port
Fourchon LA out 20 nm-
535 AM CDT Tue Jul 21 2026

...TROPICAL STORM WATCH IN EFFECT...

.TODAY...Northwest winds 15 to 20 knots with gusts up to 25 knots.
Seas 3 to 5 feet, occasionally to 6 feet. Wave Detail: Northwest
4 feet at 5 seconds and east 2 feet at 8 seconds. A slight chance of
showers and thunderstorms this morning, then a chance of showers and
thunderstorms this afternoon.
.TONIGHT...Tropical storm conditions possible. Northwest winds 15 to
20 knots, increasing to 20 to 25 knots after midnight. Seas 3 to
5 feet, occasionally to 6 feet. Wave Detail: Northwest 5 feet at
5 seconds and east 2 feet at 8 seconds. A chance of thunderstorms.
.WEDNESDAY...Tropical storm conditions possible. Northwest winds
20 to 25 knots with gusts up to 30 knots, becoming west 30 to
40 knots with gusts up to 50 knots in the afternoon. Seas 4 to
6 feet, occasionally to 8 feet, building to 5 to 8 feet,
occasionally to 10 feet in the afternoon. Wave Detail: West 8 feet
at 7 seconds. A chance of thunderstorms. A chance of showers in the
morning, then showers in the afternoon.
.WEDNESDAY NIGHT...Tropical storm conditions possible. Southwest
winds 35 to 40 knots, becoming south 25 to 30 knots after midnight.
Seas 8 to 11 feet, occasionally to 14 feet. Wave Detail: Southwest
11 feet at 7 seconds. Showers with a chance of thunderstorms.
.THURSDAY...South winds 20 to 25 knots with gusts up to 40 knots,
becoming southwest 15 to 20 knots in the afternoon. Seas 5 to
7 feet, occasionally to 9 feet, subsiding to 3 to 5 feet,
occasionally to 6 feet in the afternoon. Wave Detail: Southwest
7 feet at 8 seconds. A chance of showers and thunderstorms until
late afternoon, then a slight chance of showers and thunderstorms
late.
.THURSDAY NIGHT...Southwest winds 10 to 15 knots with gusts up to
20 knots, diminishing to 5 to 10 knots after midnight. Seas 2 to
4 feet, occasionally to 5 feet. Wave Detail: South 4 feet at
7 seconds. A slight chance of showers and thunderstorms in the
evening, then a chance of showers and thunderstorms after midnight.
.FRIDAY...Southwest winds 5 to 10 knots. Seas 2 to 3 feet. Wave
Detail: South 3 feet at 6 seconds. A chance of showers and
thunderstorms.
.FRIDAY NIGHT...Southwest winds 5 to 10 knots. Seas around 2 feet.
Wave Detail: South 2 feet at 5 seconds. A slight chance of showers
and thunderstorms in the evening, then a chance of showers and
thunderstorms after midnight.
.SATURDAY...Southwest winds 5 to 10 knots. Seas around 2 feet. Wave
Detail: South 2 feet at 6 seconds. A chance of showers and
thunderstorms until late afternoon, then a slight chance of showers
and thunderstorms late.
.SATURDAY NIGHT...Southwest winds 5 to 10 knots. Seas around 2 feet.
Wave Detail: South 2 feet at 5 seconds. A slight chance of showers
and thunderstorms early in the evening. A slight chance of showers
and thunderstorms after midnight.

Winds and seas higher in and near thunderstorms.

$$

GMZ554-212300-
Coastal Waters from Boothville LA to Southwest Pass of the
Mississippi River out 20 nm-
535 AM CDT Tue Jul 21 2026

...TROPICAL STORM WARNING IN EFFECT...

.TODAY...North winds 15 to 20 knots. Seas 3 to 5 feet, occasionally
to 6 feet. Wave Detail: Northeast 5 feet at 8 seconds and west
2 feet at 5 seconds. A slight chance of showers and thunderstorms
until late afternoon, then showers and thunderstorms likely late.
.TONIGHT...Tropical storm conditions expected. North winds 15 to
20 knots with gusts up to 25 knots, becoming northwest 25 to
30 knots with gusts up to 40 knots after midnight. Seas 4 to 6 feet,
occasionally to 8 feet. Wave Detail: Northeast 6 feet at 8 seconds
and west 5 feet at 6 seconds. Showers likely. Thunderstorms likely
until early morning, then a chance of thunderstorms late.
.WEDNESDAY...Tropical storm conditions expected. West winds 35 to
40 knots with gusts up to 50 knots. Seas 5 to 7 feet, occasionally
to 9 feet, building to 6 to 9 feet, occasionally to 11 feet in the
afternoon. Wave Detail: West 9 feet at 6 seconds and east 9 feet at
8 seconds. A chance of thunderstorms. Showers likely until late
afternoon, then a chance of showers late.
.WEDNESDAY NIGHT...Tropical storm conditions possible. South winds
35 to 40 knots, diminishing to 25 to 30 knots after midnight. Seas
6 to 9 feet, occasionally to 11 feet, subsiding to 5 to 7 feet,
occasionally to 9 feet after midnight. Wave Detail: South 9 feet at
9 seconds. A chance of thunderstorms. Showers.
.THURSDAY...Southwest winds 15 to 20 knots, diminishing to 10 to
15 knots in the afternoon. Seas 4 to 6 feet, occasionally to 8 feet.
Wave Detail: Southwest 6 feet at 8 seconds. A chance of showers and
thunderstorms until late afternoon, then a slight chance of showers
and thunderstorms late.
.THURSDAY NIGHT...Southwest winds 10 to 15 knots. Seas 2 to 4 feet,
occasionally to 5 feet. Wave Detail: South 4 feet at 7 seconds. A
slight chance of showers and thunderstorms in the evening, then a
chance of showers and thunderstorms after midnight.
.FRIDAY...Southwest winds 5 to 10 knots. Seas 2 to 3 feet. Wave
Detail: South 3 feet at 5 seconds. A chance of showers and
thunderstorms until late afternoon, then a slight chance of showers
and thunderstorms late.
.FRIDAY NIGHT...Southwest winds 5 to 10 knots, increasing to 10 to
15 knots after midnight. Seas around 2 feet. Wave Detail: South
2 feet at 5 seconds. A slight chance of showers and thunderstorms in
the evening, then a chance of showers and thunderstorms after
midnight.
.SATURDAY...Southwest winds 5 to 10 knots. Seas around 2 feet. Wave
Detail: South 2 feet at 5 seconds. A chance of showers and
thunderstorms until late afternoon, then a slight chance of showers
and thunderstorms late.
.SATURDAY NIGHT...Southwest winds 10 to 15 knots. Seas 2 to 3 feet.
Wave Detail: Southwest 2 feet at 3 seconds and southeast 1 foot at
6 seconds. A slight chance of showers and thunderstorms.

Winds and seas higher in and near thunderstorms.

$$

GMZ557-212300-
Coastal waters from Pascagoula Mississippi to Stake Island out 20 NM-
535 AM CDT Tue Jul 21 2026

...TROPICAL STORM WARNING IN EFFECT...

.TODAY...North winds 15 to 20 knots with gusts up to 25 knots. Seas
3 to 5 feet, occasionally to 6 feet. Wave Detail: Northeast 5 feet
at 8 seconds. A chance of showers and thunderstorms this afternoon.
.TONIGHT...Tropical storm conditions expected. Northeast winds 15 to
20 knots with gusts up to 25 knots, increasing to 25 to 30 knots
with gusts up to 40 knots after midnight. Seas 5 to 7 feet,
occasionally to 9 feet. Wave Detail: East 7 feet at 9 seconds. A
chance of thunderstorms. Showers likely early in the evening, then a
chance of showers in the late evening and overnight.
.WEDNESDAY...Tropical storm conditions expected. North winds 30 to
35 knots, becoming northeast 25 to 30 knots in the afternoon. Seas
5 to 7 feet, occasionally to 9 feet. Wave Detail: Southeast 7 feet
at 8 seconds. A chance of thunderstorms. A chance of showers until
late afternoon, then showers likely late.
.WEDNESDAY NIGHT...South winds 25 to 30 knots with gusts up to
45 knots, diminishing to 20 to 25 knots with gusts up to 35 knots
after midnight. Seas 6 to 9 feet, occasionally to 11 feet, subsiding
to 4 to 6 feet, occasionally to 8 feet after midnight. Wave Detail:
South 9 feet at 9 seconds. Showers likely with a chance of
thunderstorms.
.THURSDAY...Southwest winds 15 to 20 knots, becoming south 10 to
15 knots in the afternoon. Seas 3 to 5 feet, occasionally to 6 feet.
Wave Detail: South 5 feet at 7 seconds. A chance of thunderstorms.
Showers likely early in the morning, then a chance of showers in the
late morning and afternoon.
.THURSDAY NIGHT...Southwest winds 10 to 15 knots. Seas 2 to 3 feet.
Wave Detail: South 3 feet at 6 seconds. A chance of showers and
thunderstorms.
.FRIDAY...Southwest winds 5 to 10 knots. Seas around 2 feet. Wave
Detail: Southwest 2 feet at 5 seconds. A chance of showers and
thunderstorms until late afternoon, then a slight chance of showers
and thunderstorms late.
.FRIDAY NIGHT...Southwest winds around 10 knots. Seas around 2 feet.
Wave Detail: South 2 feet at 5 seconds. A slight chance of showers
and thunderstorms in the evening, then a chance of showers and
thunderstorms after midnight.
.SATURDAY...Southwest winds 10 to 15 knots. Seas around 2 feet. Wave
Detail: South 2 feet at 5 seconds. A chance of showers and
thunderstorms until late afternoon, then a slight chance of showers
and thunderstorms late.
.SATURDAY NIGHT...Southwest winds 10 to 15 knots. Seas 2 to 3 feet.
Wave Detail: South 2 feet at 5 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.

$$

GMZ570-212300-
Coastal waters from Port Fourchon Louisiana to Lower Atchafalaya
River LA from 20 to 60 NM-
535 AM CDT Tue Jul 21 2026

...TROPICAL STORM WATCH IN EFFECT...

.TODAY...Northwest winds 15 to 20 knots with gusts up to 25 knots.
Seas 4 to 5 feet, occasionally to 6 feet. Wave Detail: Northwest
5 feet at 5 seconds and east 2 feet at 8 seconds. A chance of
showers and thunderstorms until late afternoon, then showers and
thunderstorms likely late.
.TONIGHT...Tropical storm conditions possible. West winds 20 to
25 knots with gusts up to 30 knots. Seas 5 to 7 feet, occasionally
to 9 feet. Wave Detail: West 7 feet at 6 seconds and east 2 feet at
8 seconds. Showers likely with a chance of thunderstorms.
.WEDNESDAY...Tropical storm conditions possible. West winds 20 to
25 knots with gusts up to 30 knots. Seas 5 to 7 feet, occasionally
to 9 feet. Wave Detail: West 7 feet at 7 seconds and east 2 feet at
8 seconds. Thunderstorms likely in the morning. Showers likely. A
chance of thunderstorms in the afternoon.
.WEDNESDAY NIGHT...Tropical storm conditions possible. Southwest
winds 25 to 35 knots with gusts up to 45 knots. Seas 6 to 8 feet,
occasionally to 10 feet, building to 7 to 10 feet, occasionally to
13 feet after midnight. Wave Detail: Southwest 8 feet at 7 seconds.
Showers.
.THURSDAY...Southwest winds 25 to 30 knots with gusts up to
40 knots, diminishing to 15 to 20 knots in the afternoon. Seas 5 to
8 feet, occasionally to 10 feet, subsiding to 4 to 5 feet,
occasionally to 6 feet in the afternoon. Wave Detail: Southwest
8 feet at 7 seconds. Showers with a chance of thunderstorms until
late afternoon, then a slight chance of showers and thunderstorms
late.
.THURSDAY NIGHT...Southwest winds 10 to 15 knots. Seas 3 to 4 feet,
occasionally to 5 feet. Wave Detail: Southwest 4 feet at 6 seconds.
A slight chance of showers and thunderstorms in the evening, then a
chance of showers and thunderstorms after midnight.
.FRIDAY...Southwest winds 10 to 15 knots. Seas 2 to 3 feet. Wave
Detail: South 3 feet at 6 seconds. A chance of showers and
thunderstorms.
.FRIDAY NIGHT...South winds around 10 knots. Seas around 2 feet.
Wave Detail: South 2 feet at 6 seconds. A chance of showers and
thunderstorms early in the evening. A chance of showers and
thunderstorms after midnight.
.SATURDAY...Southwest winds 5 to 10 knots. Seas around 2 feet. Wave
Detail: South 2 feet at 6 seconds. A slight chance of showers and
thunderstorms.
.SATURDAY NIGHT...Southwest winds 5 to 10 knots. Seas around 2 feet.
Wave Detail: South 1 foot at 5 seconds.

Winds and seas higher in and near thunderstorms.

$$

GMZ572-212300-
Coastal waters from Southwest Pass of the Mississippi River to Port
Fourchon Louisiana from 20 to 60 NM-
535 AM CDT Tue Jul 21 2026

...TROPICAL STORM WATCH IN EFFECT...

.TODAY...Northwest winds 15 to 20 knots with gusts up to 25 knots.
Seas 4 to 6 feet, occasionally to 8 feet. Wave Detail: Northwest
6 feet at 6 seconds and east 3 feet at 8 seconds. A chance of
showers and thunderstorms this morning, then showers and
thunderstorms likely this afternoon.
.TONIGHT...Tropical storm conditions possible. West winds 20 to
25 knots with gusts up to 30 knots. Seas 6 to 8 feet, occasionally
to 10 feet. Wave Detail: West 8 feet at 7 seconds and northeast
4 feet at 8 seconds. Showers in the evening. Thunderstorms likely.
Showers likely after midnight.
.WEDNESDAY...Tropical storm conditions possible. West winds 20 to
25 knots, increasing to 25 to 30 knots in the afternoon. Seas 6 to
9 feet, occasionally to 11 feet. Wave Detail: West 9 feet at
7 seconds and northeast 3 feet at 8 seconds. A chance of
thunderstorms. Showers until late afternoon, then showers likely
late.
.WEDNESDAY NIGHT...Tropical storm conditions possible. Southwest
winds 25 to 35 knots with gusts up to 45 knots. Seas 8 to 11 feet,
occasionally to 14 feet. Wave Detail: West 11 feet at 8 seconds and
north 2 feet at 7 seconds. Showers with a chance of thunderstorms.
.THURSDAY...Southwest winds 20 to 25 knots with gusts up to
30 knots, diminishing to 15 to 20 knots in the afternoon. Seas 5 to
7 feet, occasionally to 9 feet, subsiding to 4 to 5 feet,
occasionally to 6 feet in the afternoon. Wave Detail: Southwest
7 feet at 7 seconds. A chance of thunderstorms. Showers likely early
in the morning, then a chance of showers in the late morning and
afternoon.
.THURSDAY NIGHT...Southwest 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 thunderstorms in the evening. A chance of showers.
A chance of thunderstorms after midnight.
.FRIDAY...Southwest winds around 10 knots. Seas 2 to 3 feet. Wave
Detail: South 3 feet at 6 seconds. A chance of showers and
thunderstorms.
.FRIDAY NIGHT...South winds 10 to 15 knots. Seas around 2 feet. Wave
Detail: South 2 feet at 6 seconds. A chance of showers and
thunderstorms early in the evening. A chance of showers and
thunderstorms after midnight.
.SATURDAY...Southwest winds 5 to 10 knots. Seas around 2 feet. Wave
Detail: South 2 feet at 6 seconds. A chance of showers and
thunderstorms until late afternoon, then a slight chance of showers
and thunderstorms late.
.SATURDAY NIGHT...Southwest winds 5 to 10 knots. Seas around 2 feet.
Wave Detail: South 1 foot at 6 seconds. A slight chance of showers.
A slight chance of thunderstorms early in the evening. A slight
chance of thunderstorms after midnight.

Winds and seas higher in and near thunderstorms.

$$

GMZ575-212300-
Coastal Waters from Stake Island LA to Southwest Pass of the
Mississippi River from 20 to 60 nm-
535 AM CDT Tue Jul 21 2026

...TROPICAL STORM WARNING IN EFFECT...

.TODAY...Tropical storm conditions possible. Northwest winds 15 to
20 knots with gusts up to 25 knots. Seas 5 to 6 feet, occasionally
to 8 feet. Wave Detail: North 6 feet at 7 seconds. A chance of
showers and thunderstorms until late afternoon, then showers with
thunderstorms likely late.
.TONIGHT...Tropical storm conditions expected. West winds 20 to
25 knots with gusts up to 30 knots, increasing to 25 to 35 knots
with gusts up to 45 knots after midnight. Seas 6 to 8 feet,
occasionally to 10 feet, building to 7 to 10 feet, occasionally to
13 feet after midnight. Wave Detail: West 10 feet at 7 seconds and
northeast 6 feet at 8 seconds. Showers. Thunderstorms likely until
early morning, then a chance of thunderstorms late.
.WEDNESDAY...Tropical storm conditions expected. Southwest winds
25 to 35 knots with gusts up to 50 knots. Seas 9 to 12 feet,
occasionally to 15 feet. Wave Detail: West 12 feet at 8 seconds and
northwest 12 feet at 9 seconds. A chance of thunderstorms. Showers
until late afternoon, then a chance of showers late.
.WEDNESDAY NIGHT...Southwest winds 25 to 30 knots with gusts up to
50 knots, diminishing to 20 to 25 knots with gusts up to 30 knots
after midnight. Seas 8 to 11 feet, occasionally to 14 feet,
subsiding to 7 to 8 feet, occasionally to 10 feet after midnight.
Wave Detail: Southwest 11 feet at 9 seconds. Showers likely with a
chance of thunderstorms.
.THURSDAY...Southwest winds 15 to 20 knots with gusts up to
25 knots. Seas 5 to 7 feet, occasionally to 9 feet. Wave Detail:
Southwest 7 feet at 7 seconds. A chance of thunderstorms. A chance
of showers.
.THURSDAY NIGHT...Southwest winds 10 to 15 knots. Seas 3 to 4 feet,
occasionally to 5 feet. Wave Detail: South 4 feet at 7 seconds. A
slight chance of thunderstorms in the evening. A chance of showers.
A chance of thunderstorms after midnight.
.FRIDAY...Southwest winds around 10 knots. Seas 2 to 3 feet. Wave
Detail: South 3 feet at 6 seconds. A chance of showers and
thunderstorms.
.FRIDAY NIGHT...Southwest winds 10 to 15 knots. Seas 2 to 3 feet.
Wave Detail: South 3 feet at 6 seconds. A chance of showers and
thunderstorms early in the evening. A slight chance of showers and
thunderstorms late in the evening, then a chance of showers and
thunderstorms after midnight.
.SATURDAY...Southwest winds 5 to 10 knots. Seas around 2 feet. Wave
Detail: Southwest 2 feet at 6 seconds. A chance of showers and
thunderstorms until late afternoon, then a slight chance of showers
and thunderstorms late.
.SATURDAY NIGHT...Southwest winds 5 to 10 knots, increasing to 10 to
15 knots after midnight. Seas 2 to 3 feet. Wave Detail: Southwest
2 feet at 3 seconds and southeast 2 feet at 6 seconds. A slight
chance of showers. A slight chance of thunderstorms early in the
evening. A slight chance of thunderstorms after midnight.

Winds and seas higher in and near thunderstorms.

$$

GMZ577-212300-
Coastal waters from Pascagoula Mississippi to Stake Island Louisiana
out 20 to 60 NM-
535 AM CDT Tue Jul 21 2026

...TROPICAL STORM WARNING IN EFFECT...

.TODAY...Tropical storm conditions expected. North winds 15 to
20 knots, increasing to 20 to 25 knots this afternoon. Seas 5 to
7 feet, occasionally to 9 feet. Wave Detail: Northeast 7 feet at
8 seconds and west 2 feet at 6 seconds. A chance of showers and
thunderstorms until late afternoon, then showers with thunderstorms
likely late.
.TONIGHT...Tropical storm conditions expected. Northwest winds 30 to
40 knots with gusts up to 50 knots. Seas 6 to 9 feet, occasionally
to 11 feet, building to 9 to 13 feet, occasionally to 17 feet after
midnight. Wave Detail: West 9 feet at 7 seconds and northeast 9 feet
at 8 seconds. Showers with thunderstorms likely early in the
evening, then showers with a chance of thunderstorms in the late
evening and overnight.
.WEDNESDAY...Tropical storm conditions expected. West winds 35 to
40 knots, becoming south in the afternoon. Seas 10 to 14 feet,
occasionally to 18 feet. Wave Detail: South 14 feet at 10 seconds. A
chance of thunderstorms. Showers likely, mainly in the morning.
.WEDNESDAY NIGHT...South winds 25 to 30 knots with gusts up to
50 knots, diminishing to 20 to 25 knots with gusts up to 30 knots
after midnight. Seas 9 to 12 feet, occasionally to 15 feet,
subsiding to 6 to 8 feet, occasionally to 10 feet after midnight.
Wave Detail: Southwest 12 feet at 10 seconds. A chance of
thunderstorms. Showers likely until early morning, then a chance of
showers late.
.THURSDAY...Southwest winds 15 to 20 knots with gusts up to
25 knots. Seas 5 to 7 feet, occasionally to 9 feet. Wave Detail:
South 7 feet at 8 seconds and southwest 5 feet at 8 seconds. A
chance of thunderstorms. A chance of showers.
.THURSDAY NIGHT...Southwest winds 10 to 15 knots. Seas 3 to 4 feet,
occasionally to 5 feet. Wave Detail: South 4 feet at 7 seconds. A
chance of showers and thunderstorms.
.FRIDAY...Southwest winds around 10 knots. Seas 2 to 3 feet. Wave
Detail: South 3 feet at 6 seconds. A chance of showers and
thunderstorms.
.FRIDAY NIGHT...Southwest winds 10 to 15 knots. Seas around 2 feet.
Wave Detail: South 2 feet at 6 seconds. A slight chance of showers
and thunderstorms in the evening, then a chance of showers and
thunderstorms after midnight.
.SATURDAY...Southwest winds around 10 knots. Seas around 2 feet.
Wave Detail: South 2 feet at 6 seconds. A chance of showers and
thunderstorms until late afternoon, then a slight chance of showers
and thunderstorms late.
.SATURDAY NIGHT...Southwest winds 10 to 15 knots. Seas 2 to 3 feet.
Wave Detail: South 2 feet at 5 seconds. A slight chance of showers
and thunderstorms.

Winds and seas higher in and near thunderstorms.

$$