259
FZUS54 KLIX 211738
CWFLIX

Coastal Waters Forecast
National Weather Service New Orleans LA
1237 PM 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-GMZ501-220600-
1237 PM 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.

$$

GMZ529-220600-
Lake Maurepas-
1237 PM CDT Tue Jul 21 2026

...TROPICAL STORM WATCH IN EFFECT...

.THIS AFTERNOON...Northwest winds 5 to 10 knots. Seas 1 foot or
less. A chance of showers and thunderstorms.
.TONIGHT...North winds around 5 knots. Seas 1 foot or less. A chance
of showers and thunderstorms 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.
.WEDNESDAY NIGHT...Northeast winds 5 to 10 knots. Gusts up to
45 knots after midnight. Seas around 2 feet. A chance of
thunderstorms in the evening. A chance of showers.
.THURSDAY...East winds 5 to 10 knots with gusts up to 45 knots,
becoming southeast 10 to 15 knots with gusts up to 35 knots in the
afternoon. Seas around 2 feet. A chance of showers in the morning. A
chance of thunderstorms late in the morning, then showers and
thunderstorms likely in the afternoon.
.THURSDAY NIGHT...Southwest winds 5 to 10 knots. Seas 1 foot or
less. Showers and thunderstorms likely early in the evening, then a
slight chance of thunderstorms late in the evening. A slight chance
of showers in the late evening and overnight.
.FRIDAY...Southwest winds around 5 knots. Seas 1 foot or less. A
chance of showers. A chance of thunderstorms in the late morning and
afternoon.
.FRIDAY NIGHT...Southwest winds around 5 knots. Seas 1 foot or less.
A chance of showers and thunderstorms early in the evening.
.SATURDAY...Southwest winds around 5 knots. Seas 1 foot or less. A
chance of showers and thunderstorms in the afternoon.
.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.

$$

GMZ531-220600-
Lake Pontchartrain-
1237 PM CDT Tue Jul 21 2026

...TROPICAL STORM WATCH IN EFFECT...

.THIS AFTERNOON...Northwest winds 5 to 10 knots. Seas around 2 feet.
A slight chance of showers and thunderstorms early, then a chance of
showers and thunderstorms late.
.TONIGHT...North winds 5 to 10 knots. Seas around 2 feet. A chance
of showers and thunderstorms early in the evening.
.WEDNESDAY...Northeast winds 10 to 15 knots with gusts up to
20 knots. Seas 2 to 3 feet. A slight chance of showers and
thunderstorms in the afternoon.
.WEDNESDAY NIGHT...East winds 10 to 15 knots with gusts up to
30 knots. Seas around 2 feet. A chance of showers. A chance of
thunderstorms, mainly in the evening.
.THURSDAY...Southeast winds 5 to 10 knots with gusts up to 35 knots.
Seas around 2 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,
then a slight chance of showers and thunderstorms in the late
evening and overnight.
.FRIDAY...Southwest winds around 5 knots. Seas 1 foot or less. A
chance of showers. A slight chance of thunderstorms early in the
morning, then a chance of thunderstorms in the late morning and
afternoon.
.FRIDAY NIGHT...Southwest winds 5 to 10 knots. Seas 1 foot or less.
A chance of showers and thunderstorms early in the evening.
.SATURDAY...Southwest winds around 5 knots. Seas 1 foot or less. A
chance of showers and thunderstorms in the afternoon.
.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.

$$

GMZ532-220600-
Mississippi Sound-
1237 PM CDT Tue Jul 21 2026

...TROPICAL STORM WARNING IN EFFECT...

.THIS AFTERNOON...North winds 10 to 15 knots with gusts up to
20 knots. Waves 2 to 3 feet. A chance of showers and thunderstorms
late.
.TONIGHT...Northeast winds 10 to 15 knots, increasing to 15 to
20 knots after midnight. Waves 2 to 4 feet. A slight chance of
thunderstorms early in the evening. A slight chance of showers in
the evening. A chance of showers with a slight chance of
thunderstorms after midnight.
.WEDNESDAY...Northeast winds 15 to 20 knots. Gusts up to 40 knots in
the afternoon. Waves 3 to 4 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...East winds 15 to 20 knots, becoming southeast
10 to 15 knots after midnight. Gusts up to 40 knots. Waves 3 to
4 feet. Showers and thunderstorms likely, mainly in the evening.
.THURSDAY...South winds 15 to 20 knots, diminishing to 10 to
15 knots in the afternoon. Waves 3 to 4 feet. A chance of
thunderstorms.
.THURSDAY NIGHT...Southwest winds 10 to 15 knots, diminishing to
5 to 10 knots after midnight. Waves around 2 feet. A chance of
showers. A chance of thunderstorms, mainly in the evening.
.FRIDAY...Southwest winds 5 to 10 knots. Waves around 2 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.
.FRIDAY 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.
.SATURDAY...West winds 5 to 10 knots, becoming southwest 10 to
15 knots in the afternoon. Waves 2 to 3 feet. A slight chance of
showers and thunderstorms.
.SATURDAY NIGHT...Southwest winds 10 to 15 knots. Waves 2 to 3 feet.
A slight 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.

$$

GMZ533-220600-
Lake Salvador and Lake Cataouatche-
1237 PM CDT Tue Jul 21 2026

...TROPICAL STORM WATCH IN EFFECT...

.THIS AFTERNOON...Northwest winds 5 to 10 knots. Seas around 2 feet.
A chance of showers and thunderstorms.
.TONIGHT...Northwest 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...North winds around 10 knots. Seas around 2 feet. 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. Northeast
winds 25 to 30 knots, becoming east 20 to 25 knots after midnight.
Gusts up to 45 knots. Seas 3 to 5 feet, occasionally to 6 feet.
Showers likely with a chance of thunderstorms.
.THURSDAY...Tropical storm conditions possible. South winds 25 to
30 knots, diminishing to 15 to 20 knots in the afternoon. Seas 4 to
6 feet, occasionally to 8 feet, subsiding to 2 to 3 feet in the
afternoon. Showers likely. A chance of thunderstorms in the morning,
then thunderstorms likely in the afternoon.
.THURSDAY NIGHT...Southwest winds around 5 knots. Seas 1 foot or
less. Showers and thunderstorms likely in the evening, then a chance
of showers with a slight chance of thunderstorms after midnight.
.FRIDAY...Southwest winds around 5 knots. Seas 1 foot or less. A
chance of showers with a slight chance of thunderstorms early in the
morning, then a chance of showers and thunderstorms in the late
morning and afternoon.
.FRIDAY NIGHT...Southwest winds around 5 knots. Seas 1 foot or less.
A chance of showers and thunderstorms early in the evening.
.SATURDAY...Southwest winds around 5 knots, increasing to 5 to
10 knots in the afternoon. 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.
.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.

$$

GMZ534-220600-
Lake Borgne-
1237 PM CDT Tue Jul 21 2026

...TROPICAL STORM WARNING IN EFFECT...

.THIS AFTERNOON...North winds 5 to 10 knots. Waves around 2 feet. A
slight chance of showers and thunderstorms late.
.TONIGHT...North winds 10 to 15 knots. Waves 2 to 3 feet. A slight
chance of showers and thunderstorms early in the evening.
.WEDNESDAY...Northeast winds 10 to 15 knots with gusts up to
20 knots. Waves 2 to 3 feet. A chance of showers and thunderstorms
in the late morning and afternoon.
.WEDNESDAY NIGHT...Northeast winds 10 to 15 knots, becoming
southeast after midnight. Gusts up to 40 knots. Waves 2 to 3 feet.
Showers and thunderstorms likely in the evening, then a chance of
showers with a slight chance of thunderstorms after midnight.
.THURSDAY...South winds 10 to 15 knots. Gusts up to 40 knots. Waves
2 to 3 feet. A chance of showers and thunderstorms.
.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. A slight chance of thunderstorms early in the
morning, then a chance of thunderstorms in the late morning and
afternoon.
.FRIDAY 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.
.SATURDAY...Southwest winds 5 to 10 knots. Waves 1 foot or less. A
slight chance of showers and thunderstorms.
.SATURDAY NIGHT...Southwest winds 5 to 10 knots. Waves around
2 feet. A slight chance of showers and thunderstorms early in the
evening.

Winds and waves higher in and near thunderstorms.

$$

GMZ535-220600-
Breton Sound-
1237 PM CDT Tue Jul 21 2026

...TROPICAL STORM WARNING IN EFFECT...

.THIS AFTERNOON...North winds 10 to 15 knots with gusts up to
20 knots. Seas around 2 feet. A slight 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. Showers likely in the evening. A
chance of thunderstorms. A chance of showers after midnight.
.WEDNESDAY...Tropical storm conditions expected. North winds 25 to
30 knots. Gusts up to 45 knots in the afternoon. Seas 5 to 7 feet,
occasionally to 9 feet. A chance of thunderstorms in the morning.
Showers likely. Thunderstorms likely in the afternoon.
.WEDNESDAY NIGHT...Tropical storm conditions expected. Southeast
winds 25 to 30 knots with gusts up to 45 knots. Seas 4 to 6 feet,
occasionally to 8 feet. Showers and thunderstorms likely, mainly in
the evening.
.THURSDAY...South winds 15 to 20 knots. Gusts up to 40 knots in the
morning. Seas 3 to 4 feet, occasionally to 5 feet. A chance of
showers and thunderstorms.
.THURSDAY NIGHT...Southwest winds 10 to 15 knots, diminishing to
5 to 10 knots after midnight. Seas around 2 feet. A chance of
thunderstorms in the evening. A chance of showers. A slight chance
of thunderstorms after midnight.
.FRIDAY...Southwest winds 5 to 10 knots. Seas around 2 feet. A
slight chance of thunderstorms. A chance of showers, mainly in the
morning.
.FRIDAY NIGHT...Southwest winds 5 to 10 knots. Seas around 2 feet. A
slight chance of showers and thunderstorms.
.SATURDAY...Southwest winds 5 to 10 knots. Seas around 2 feet. A
slight chance of showers and thunderstorms.
.SATURDAY NIGHT...Southwest winds 10 to 15 knots. Seas 2 to 3 feet.

Winds and seas higher in and near thunderstorms.

$$

GMZ536-220600-
Chandeleur Sound-
1237 PM CDT Tue Jul 21 2026

...TROPICAL STORM WARNING IN EFFECT...

.THIS AFTERNOON...North winds 10 to 15 knots with gusts up to
20 knots. Waves 2 to 3 feet. A slight 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. Waves 3 to
4 feet. A chance of showers and thunderstorms.
.WEDNESDAY...Tropical storm conditions expected. Northeast winds
25 to 30 knots with gusts up to 40 knots. Waves 4 to 6 feet. A
chance of showers and thunderstorms in the morning, then showers and
thunderstorms likely in the afternoon.
.WEDNESDAY NIGHT...Tropical storm conditions expected. Southeast
winds 25 to 30 knots, diminishing to 15 to 20 knots after midnight.
Waves 4 to 6 feet, subsiding to 3 to 4 feet after midnight. Showers
and thunderstorms likely, mainly in the evening.
.THURSDAY...South winds 15 to 20 knots. Gusts up to 30 knots. Waves
3 to 4 feet. A chance of showers and thunderstorms.
.THURSDAY NIGHT...Southwest winds 10 to 15 knots with gusts up to
20 knots, diminishing to 5 to 10 knots after midnight. Waves 2 to
3 feet. A chance of showers. A chance of thunderstorms, mainly in
the evening.
.FRIDAY...Southwest winds 5 to 10 knots. Waves around 2 feet. A
chance of showers and thunderstorms.
.FRIDAY 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.
.SATURDAY...Southwest winds 5 to 10 knots, increasing to 10 to
15 knots in the afternoon. Waves 2 to 3 feet. A slight chance of
showers and thunderstorms.
.SATURDAY NIGHT...Southwest winds 10 to 15 knots. Waves around
3 feet. A slight chance of showers and thunderstorms after midnight.

Winds and waves higher in and near thunderstorms.

$$

GMZ541-220600-
Terrebonne Bay-
1237 PM CDT Tue Jul 21 2026

...TROPICAL STORM WATCH IN EFFECT...

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

Winds and seas higher in and near thunderstorms.

$$

GMZ543-220600-
Barataria Bay-
1237 PM CDT Tue Jul 21 2026

...TROPICAL STORM WARNING IN EFFECT...

.THIS AFTERNOON...Northwest winds 5 to 10 knots. Seas 1 foot or
less. A chance of showers and thunderstorms.
.TONIGHT...Northwest winds 5 to 10 knots, increasing to 10 to
15 knots with gusts up to 20 knots after midnight. Seas 1 foot or
less. A chance of showers and thunderstorms, mainly in the evening.
.WEDNESDAY...Tropical storm conditions expected. Northwest winds
10 to 15 knots with gusts up to 20 knots, becoming north 30 to
35 knots with gusts up to 50 knots in the afternoon. Seas 1 foot or
less. A slight chance of showers and thunderstorms early in the
morning, then a chance of showers and thunderstorms in the late
morning and early afternoon. Showers and thunderstorms likely late.
.WEDNESDAY NIGHT...Tropical storm conditions expected. North winds
30 to 35 knots, becoming south 25 to 30 knots after midnight. Seas
1 foot or less. Thunderstorms likely in the evening. Showers likely.
A chance of thunderstorms after midnight.
.THURSDAY...Tropical storm conditions possible. South winds 25 to
30 knots with gusts up to 40 knots, diminishing to 15 to 20 knots
with gusts up to 25 knots in the afternoon. Seas 1 foot or less.
Wave Detail: South 1 foot at 2 seconds. A chance of thunderstorms.
Showers likely until late afternoon, then a chance of showers late.
.THURSDAY NIGHT...Southwest winds 5 to 10 knots. Seas 1 foot or
less. A chance of showers. A chance of thunderstorms, mainly in the
evening.
.FRIDAY...Southwest winds 5 to 10 knots. Seas 1 foot or less. A
chance of showers and thunderstorms until late afternoon.
.FRIDAY NIGHT...Southwest winds 5 to 10 knots. Seas 1 foot or less.
A slight chance of showers and thunderstorms after midnight.
.SATURDAY...Southwest winds 5 to 10 knots. Seas 1 foot or less. A
slight chance of showers and thunderstorms until late afternoon.
.SATURDAY NIGHT...Southwest winds 5 to 10 knots. Seas 1 foot or
less.

Winds and seas higher in and near thunderstorms.

$$

GMZ551-220600-
Coastal Waters from Port Fourchon LA to Lower Atchafalaya River LA
out 20 nm-
1237 PM CDT Tue Jul 21 2026

...TROPICAL STORM WATCH IN EFFECT...

.THIS AFTERNOON...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 chance of showers and thunderstorms
early, then showers and thunderstorms likely late.
.TONIGHT...West 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
5 seconds. Showers and thunderstorms likely, mainly in the evening.
.WEDNESDAY...Tropical storm conditions possible. Northwest winds
15 to 20 knots, increasing to 20 to 25 knots in the afternoon. Seas
3 to 5 feet, occasionally to 6 feet. Wave Detail: West 5 feet at
5 seconds. A chance of showers and thunderstorms until late
afternoon, then showers and thunderstorms likely late.
.WEDNESDAY NIGHT...Tropical storm conditions possible. West winds
30 to 35 knots with gusts up to 45 knots. Seas 4 to 6 feet,
occasionally to 8 feet. Wave Detail: West 6 feet at 5 seconds.
Showers with thunderstorms likely early in the evening, then showers
likely with a chance of thunderstorms in the late evening and
overnight.
.THURSDAY...Tropical storm conditions possible. Southwest winds
25 to 30 knots with gusts up to 40 knots. Seas 5 to 7 feet,
occasionally to 9 feet. Wave Detail: Southwest 7 feet at 6 seconds.
A chance of thunderstorms. Showers likely until late afternoon, then
a chance of showers late.
.THURSDAY NIGHT...Southwest winds 10 to 15 knots. Seas 2 to 4 feet,
occasionally to 5 feet. Wave Detail: Southwest 3 feet at 6 seconds.
A chance of showers.
.FRIDAY...Southwest winds 5 to 10 knots. Seas 2 to 3 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 5 to 10 knots. Seas around 2 feet.
Wave Detail: Southwest 2 feet at 5 seconds. A slight chance of
showers and thunderstorms.
.SATURDAY...Southwest winds 5 to 10 knots. Seas around 2 feet. Wave
Detail: Southwest 2 feet at 4 seconds. A slight chance of showers
and thunderstorms until late afternoon.
.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 5 seconds.

Winds and seas higher in and near thunderstorms.

$$

GMZ553-220600-
Coastal Waters from Southwest Pass of the Mississippi River to Port
Fourchon LA out 20 nm-
1237 PM CDT Tue Jul 21 2026

...TROPICAL STORM WARNING IN EFFECT...

.THIS AFTERNOON...Northwest winds 15 to 20 knots with gusts up to
25 knots. Seas 2 to 4 feet, occasionally to 5 feet. Wave Detail:
Northwest 3 feet at 5 seconds and east 2 feet at 7 seconds. A chance
of showers and thunderstorms.
.TONIGHT...Northwest winds 15 to 20 knots with gusts up to 30 knots.
Seas 3 to 5 feet, occasionally to 6 feet. Wave Detail: Northwest
5 feet at 5 seconds and east 1 foot at 7 seconds. Showers and
thunderstorms likely, mainly in the evening.
.WEDNESDAY...Tropical storm conditions expected. Northwest winds
25 to 30 knots, increasing to 30 to 40 knots with gusts up to
50 knots in the afternoon. Seas 4 to 6 feet, occasionally to 8 feet,
building to 6 to 9 feet, occasionally to 11 feet in the afternoon.
Wave Detail: West 9 feet at 6 seconds. A chance of thunderstorms in
the morning. Showers. Thunderstorms likely in the afternoon.
.WEDNESDAY NIGHT...Tropical storm conditions expected. Southwest
winds 30 to 40 knots with gusts up to 50 knots. Seas 8 to 11 feet,
occasionally to 14 feet. Wave Detail: Southwest 11 feet at
7 seconds. Thunderstorms likely in the evening. Showers. A chance of
thunderstorms after midnight.
.THURSDAY...Tropical storm conditions possible. Southwest winds
25 to 30 knots with gusts up to 40 knots, diminishing to 20 to
25 knots with gusts up to 30 knots in the afternoon. Seas 6 to
9 feet, occasionally to 11 feet, subsiding to 5 to 7 feet,
occasionally to 9 feet in the afternoon. Wave Detail: South 9 feet
at 7 seconds. A chance of thunderstorms. Showers likely, mainly in
the morning.
.THURSDAY NIGHT...Southwest winds 10 to 15 knots with gusts up to
20 knots, diminishing to 5 to 10 knots after midnight. Seas 3 to
5 feet, occasionally to 6 feet. Wave Detail: South 4 feet at
6 seconds. A chance of showers. A chance of thunderstorms early in
the evening, then a slight chance of thunderstorms in the late
evening and overnight.
.FRIDAY...Southwest winds 5 to 10 knots. Seas 2 to 3 feet. Wave
Detail: South 3 feet at 5 seconds. A chance of showers with a slight
chance of thunderstorms early in the morning, then a slight chance
of showers and thunderstorms in the late morning and early
afternoon.
.FRIDAY NIGHT...Southwest winds 5 to 10 knots. Seas 2 to 3 feet.
Wave Detail: South 2 feet at 5 seconds. A slight chance of showers
and thunderstorms.
.SATURDAY...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 morning.
.SATURDAY NIGHT...Southwest winds 5 to 10 knots. Seas around 2 feet.
Wave Detail: South 2 feet at 5 seconds.

Winds and seas higher in and near thunderstorms.

$$

GMZ554-220600-
Coastal Waters from Boothville LA to Southwest Pass of the
Mississippi River out 20 nm-
1237 PM CDT Tue Jul 21 2026

...TROPICAL STORM WARNING IN EFFECT...

.THIS AFTERNOON...Northwest winds 15 to 20 knots. Seas 3 to 5 feet,
occasionally to 6 feet. Wave Detail: Northeast 5 feet at 7 seconds
and west 3 feet at 6 seconds. A slight chance of showers and
thunderstorms early, then a chance of showers and thunderstorms
late.
.TONIGHT...Tropical storm conditions expected. Northwest 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 4 to 6 feet,
occasionally to 8 feet. Wave Detail: Northeast 6 feet at 8 seconds
and west 5 feet at 6 seconds. Showers with thunderstorms likely.
.WEDNESDAY...Tropical storm conditions expected. West winds 35 to
45 knots with gusts up to 55 knots. Seas 5 to 8 feet, occasionally
to 10 feet, building to 7 to 10 feet, occasionally to 13 feet in the
afternoon. Wave Detail: East 10 feet at 8 seconds and west 8 feet at
6 seconds. Showers and thunderstorms.
.WEDNESDAY NIGHT...Tropical storm conditions expected. South winds
35 to 40 knots with gusts up to 55 knots, diminishing to 25 to
30 knots with gusts up to 45 knots after midnight. Seas 7 to
10 feet, occasionally to 13 feet, subsiding to 5 to 7 feet,
occasionally to 9 feet after midnight. Wave Detail: Southwest
10 feet at 8 seconds. Thunderstorms likely in the evening. Showers
likely. A chance of thunderstorms after midnight.
.THURSDAY...South winds 15 to 20 knots with gusts up to 30 knots.
Seas 4 to 6 feet, occasionally to 8 feet. Wave Detail: Southwest
6 feet at 7 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 3 to 5 feet,
occasionally to 6 feet. Wave Detail: South 4 feet at 6 seconds. A
slight chance of showers and thunderstorms.
.FRIDAY...Southwest winds 5 to 10 knots. Seas 2 to 3 feet. Wave
Detail: South 2 feet at 5 seconds. A slight chance of showers and
thunderstorms until late afternoon.
.FRIDAY NIGHT...Southwest winds 5 to 10 knots, increasing to 10 to
15 knots after midnight. Seas 2 to 3 feet. Wave Detail: South 2 feet
at 5 seconds. A slight chance of showers late in the evening.
.SATURDAY...Southwest winds 5 to 10 knots. Seas 2 to 3 feet. Wave
Detail: South 2 feet at 5 seconds.
.SATURDAY NIGHT...Southwest winds 10 to 15 knots. Seas 2 to 3 feet.
Wave Detail: South 2 feet at 5 seconds.

Winds and seas higher in and near thunderstorms.

$$

GMZ557-220600-
Coastal waters from Pascagoula Mississippi to Stake Island out 20 NM-
1237 PM CDT Tue Jul 21 2026

...TROPICAL STORM WARNING IN EFFECT...

.THIS AFTERNOON...North winds 10 to 15 knots with gusts up to
25 knots. Seas 3 to 5 feet, occasionally to 6 feet. Wave Detail:
Northeast 4 feet at 7 seconds. A slight chance of showers and
thunderstorms early, then a chance of showers and thunderstorms
late.
.TONIGHT...Tropical storm conditions expected. North winds 15 to
20 knots with gusts up to 25 knots, becoming northeast 25 to
30 knots with gusts up to 40 knots after midnight. Seas 5 to 7 feet,
occasionally to 9 feet. Wave Detail: Northeast 6 feet at 7 seconds.
A chance of showers and thunderstorms.
.WEDNESDAY...Tropical storm conditions expected. Northeast winds
25 to 30 knots, becoming east 30 to 35 knots in the afternoon. Gusts
up to 45 knots in the morning. Seas 5 to 7 feet, occasionally to
9 feet, building to 7 to 10 feet, occasionally to 13 feet in the
afternoon. Wave Detail: Northeast 8 feet at 7 seconds. A chance of
thunderstorms in the morning. Showers likely. Thunderstorms likely
in the afternoon.
.WEDNESDAY NIGHT...Tropical storm conditions expected. Southeast
winds 25 to 30 knots with gusts up to 45 knots, becoming south 15 to
20 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 8 seconds.
Showers likely in the evening. A chance of thunderstorms. A chance
of showers after midnight.
.THURSDAY...South winds 15 to 20 knots with gusts up to 25 knots.
Seas 3 to 5 feet, occasionally to 6 feet. Wave Detail: South 5 feet
at 7 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 3 feet at 5 seconds. A
chance of showers. A slight chance of thunderstorms until early
morning, then a chance of thunderstorms late.
.FRIDAY...Southwest winds 5 to 10 knots. Seas 2 to 3 feet. Wave
Detail: South 2 feet at 5 seconds. A chance of showers in the
morning. A chance of thunderstorms. A slight chance of showers in
the afternoon.
.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.
.SATURDAY...Southwest winds around 10 knots. Seas around 2 feet.
Wave Detail: Southwest 2 feet at 4 seconds. A slight chance of
showers and thunderstorms until late afternoon.
.SATURDAY NIGHT...Southwest winds 10 to 15 knots. Seas 2 to 3 feet.
Wave Detail: Southwest 2 feet at 4 seconds. A slight chance of
showers and thunderstorms after midnight.

Winds and seas higher in and near thunderstorms.

$$

GMZ570-220600-
Coastal waters from Port Fourchon Louisiana to Lower Atchafalaya
River LA from 20 to 60 NM-
1237 PM CDT Tue Jul 21 2026

...TROPICAL STORM WATCH IN EFFECT...

.THIS AFTERNOON...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 thunderstorms. A chance of showers early, then showers 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 6 feet at 6 seconds and east 2 feet at
7 seconds. A chance of thunderstorms. Showers.
.WEDNESDAY...Tropical storm conditions possible. West winds 20 to
25 knots with gusts up to 30 knots. Seas 6 to 7 feet, occasionally
to 9 feet. Wave Detail: West 7 feet at 6 seconds and east 2 feet at
8 seconds. Thunderstorms likely. Showers.
.WEDNESDAY NIGHT...Tropical storm conditions possible. West winds
25 to 35 knots with gusts up to 45 knots. Seas 6 to 8 feet,
occasionally to 10 feet, building to 8 to 11 feet, occasionally to
14 feet after midnight. Wave Detail: West 9 feet at 7 seconds.
Thunderstorms likely in the evening. Showers. A chance of
thunderstorms after midnight.
.THURSDAY...Tropical storm conditions possible. Southwest winds
25 to 30 knots with gusts up to 40 knots. Seas 7 to 10 feet,
occasionally to 13 feet, subsiding to 6 to 7 feet, occasionally to
9 feet in the afternoon. Wave Detail: Southwest 9 feet at 7 seconds.
A chance of thunderstorms. Showers likely, mainly in the morning.
.THURSDAY NIGHT...Southwest winds 10 to 15 knots. Seas 4 to 5 feet,
occasionally to 6 feet. Wave Detail: Southwest 4 feet at 6 seconds.
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 10 to 15 knots. Seas 3 to 4 feet,
occasionally to 5 feet. Wave Detail: South 3 feet at 5 seconds. A
slight chance of thunderstorms. A chance of showers until late
afternoon, then a slight chance of showers late.
.FRIDAY NIGHT...South winds around 10 knots. Seas 2 to 3 feet. Wave
Detail: South 2 feet at 5 seconds. A slight chance of showers and
thunderstorms in the evening.
.SATURDAY...Southwest winds 5 to 10 knots. Seas around 2 feet. Wave
Detail: Southwest 2 feet at 5 seconds.
.SATURDAY NIGHT...Southwest winds 5 to 10 knots. Seas around 2 feet.
Wave Detail: South 2 feet at 5 seconds.

Winds and seas higher in and near thunderstorms.

$$

GMZ572-220600-
Coastal waters from Southwest Pass of the Mississippi River to Port
Fourchon Louisiana from 20 to 60 NM-
1237 PM CDT Tue Jul 21 2026

...TROPICAL STORM WARNING IN EFFECT...

.THIS AFTERNOON...Northwest winds 15 to 20 knots with gusts up to
25 knots. Seas 4 to 6 feet, occasionally to 8 feet. Wave Detail:
West 5 feet at 6 seconds and east 3 feet at 7 seconds. A chance of
showers and thunderstorms early, then showers and thunderstorms
likely late.
.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 7 feet at 6 seconds and northeast
3 feet at 7 seconds. Thunderstorms likely. Showers.
.WEDNESDAY...Tropical storm conditions expected. West winds 25 to
30 knots. Seas 7 to 10 feet, occasionally to 13 feet. Wave Detail:
West 8 feet at 7 seconds and northeast 3 feet at 8 seconds. Showers
with thunderstorms likely.
.WEDNESDAY NIGHT...Tropical storm conditions expected. Southwest
winds 25 to 35 knots with gusts up to 45 knots. Seas 8 to 11 feet,
occasionally to 14 feet. Wave Detail: Southwest 9 feet at 7 seconds
and northeast 1 foot at 7 seconds. Thunderstorms likely in the
evening. Showers. A chance of thunderstorms after midnight.
.THURSDAY...Tropical storm conditions possible. Southwest winds
20 to 25 knots, diminishing to 15 to 20 knots in the afternoon. Seas
6 to 9 feet, occasionally to 11 feet, subsiding to 5 to 6 feet,
occasionally to 8 feet in the afternoon. Wave Detail: Southwest
7 feet at 7 seconds. A chance of showers and thunderstorms.
.THURSDAY NIGHT...Southwest winds 10 to 15 knots. Seas 4 to 5 feet,
occasionally to 6 feet. Wave Detail: South 4 feet at 6 seconds. A
slight chance of thunderstorms. A chance of showers until early
morning, then a slight chance of showers late.
.FRIDAY...Southwest winds around 10 knots. Seas 3 to 4 feet,
occasionally to 5 feet. Wave Detail: South 3 feet at 5 seconds. A
slight chance of showers and thunderstorms until late afternoon.
.FRIDAY NIGHT...South winds 10 to 15 knots. Seas 2 to 3 feet. Wave
Detail: South 2 feet at 5 seconds.
.SATURDAY...Southwest winds 5 to 10 knots. Seas around 2 feet. Wave
Detail: South 2 feet at 6 seconds.
.SATURDAY NIGHT...Southwest winds 5 to 10 knots. Seas around 2 feet.
Wave Detail: Southwest 2 feet at 3 seconds and southeast 1 foot at
6 seconds.

Winds and seas higher in and near thunderstorms.

$$

GMZ575-220600-
Coastal Waters from Stake Island LA to Southwest Pass of the
Mississippi River from 20 to 60 nm-
1237 PM CDT Tue Jul 21 2026

...TROPICAL STORM WARNING IN EFFECT...

.THIS AFTERNOON...Northwest winds 15 to 20 knots with gusts up to
25 knots. Seas 5 to 6 feet, occasionally to 8 feet. Wave Detail:
Northwest 5 feet at 6 seconds and northeast 5 feet at 7 seconds. A
chance of showers and thunderstorms early, then showers and
thunderstorms likely late.
.TONIGHT...Tropical storm conditions expected. West winds 25 to
30 knots. Gusts up to 45 knots after midnight. Seas 6 to 9 feet,
occasionally to 11 feet, building to 8 to 10 feet, occasionally to
13 feet after midnight. Wave Detail: West 8 feet at 7 seconds and
northeast 5 feet at 8 seconds. Showers, thunderstorms.
.WEDNESDAY...Tropical storm conditions expected. West winds 25 to
35 knots, becoming southwest 30 to 40 knots in the afternoon. Seas
9 to 12 feet, occasionally to 15 feet, building to 10 to 14 feet,
occasionally to 18 feet in the afternoon. Wave Detail: North 11 feet
at 8 seconds and west 10 feet at 7 seconds. Thunderstorms likely.
Showers.
.WEDNESDAY NIGHT...Tropical storm conditions expected. Southwest
winds 25 to 35 knots with gusts up to 50 knots, becoming south 20 to
25 knots with gusts up to 30 knots after midnight. Seas 9 to
13 feet, occasionally to 17 feet, subsiding to 8 to 9 feet,
occasionally to 11 feet after midnight. Wave Detail: Southwest
11 feet at 8 seconds. Showers likely with a chance of thunderstorms
in the evening, then a chance of showers with a slight chance of
thunderstorms after midnight.
.THURSDAY...Tropical storm conditions possible. Southwest winds
20 to 25 knots, diminishing to 15 to 20 knots in the afternoon. Seas
6 to 8 feet, occasionally to 10 feet. Wave Detail: Southwest 7 feet
at 7 seconds. A chance of showers. A chance of thunderstorms, mainly
in the morning.
.THURSDAY NIGHT...Southwest winds 10 to 15 knots. Seas 4 to 5 feet,
occasionally to 6 feet. Wave Detail: South 4 feet at 7 seconds. A
slight chance of thunderstorms early in the evening. A chance of
showers until early morning. A slight chance of showers late.
.FRIDAY...Southwest winds around 10 knots. Seas 3 to 4 feet,
occasionally to 5 feet. Wave Detail: South 3 feet at 6 seconds. A
slight chance of showers and thunderstorms in the morning.
.FRIDAY NIGHT...Southwest winds 10 to 15 knots. Seas 2 to 3 feet.
Wave Detail: South 2 feet at 6 seconds.
.SATURDAY...Southwest winds 5 to 10 knots. Seas 2 to 3 feet. Wave
Detail: South 2 feet at 6 seconds.
.SATURDAY NIGHT...Southwest winds 5 to 10 knots, increasing to 10 to
15 knots after midnight. Seas 2 to 3 feet. Wave Detail: South 2 feet
at 6 seconds.

Winds and seas higher in and near thunderstorms.

$$

GMZ577-220600-
Coastal waters from Pascagoula Mississippi to Stake Island Louisiana
out 20 to 60 NM-
1237 PM CDT Tue Jul 21 2026

...TROPICAL STORM WARNING IN EFFECT...

.THIS AFTERNOON...Tropical storm conditions expected. North winds
30 to 35 knots with gusts up to 45 knots. Seas 6 to 9 feet,
occasionally to 11 feet. Wave Detail: North 6 feet at 7 seconds. A
chance of showers and thunderstorms early, then showers with
thunderstorms likely late.
.TONIGHT...Tropical storm conditions expected. Northwest winds 30 to
40 knots. Gusts up to 55 knots after midnight. Seas 8 to 11 feet,
occasionally to 14 feet. Wave Detail: Northwest 10 feet at 6 seconds
and northeast 8 feet at 8 seconds. Showers.
.WEDNESDAY...Tropical storm conditions expected. West winds 40 to
45 knots, becoming south 35 to 40 knots in the afternoon. Seas 10 to
14 feet, occasionally to 18 feet, building to 12 to 15 feet,
occasionally to 19 feet in the afternoon. Wave Detail: Southwest
14 feet at 9 seconds. Showers with thunderstorms likely until late
afternoon, then showers likely with a chance of thunderstorms late.
.WEDNESDAY NIGHT...Tropical storm conditions possible. 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 7 to 9 feet,
occasionally to 11 feet after midnight. Wave Detail: Southwest
12 feet at 9 seconds. Showers likely with a chance of thunderstorms.
.THURSDAY...South winds 15 to 20 knots with gusts up to 25 knots.
Seas 5 to 8 feet, occasionally to 10 feet. Wave Detail: Southwest
7 feet at 7 seconds. A chance of showers. A chance of thunderstorms
until late afternoon, then a slight chance of thunderstorms late.
.THURSDAY NIGHT...Southwest winds 10 to 15 knots. Seas 3 to 5 feet,
occasionally to 6 feet. Wave Detail: South 4 feet at 7 seconds. A
slight chance of thunderstorms. A chance of showers early in the
evening, then a slight chance of showers in the late evening and
overnight.
.FRIDAY...Southwest winds around 10 knots. Seas 2 to 4 feet,
occasionally to 5 feet. Wave Detail: South 2 feet at 6 seconds. A
slight chance of showers and thunderstorms until late afternoon.
.FRIDAY NIGHT...Southwest winds 10 to 15 knots. Seas 2 to 3 feet.
Wave Detail: South 2 feet at 6 seconds.
.SATURDAY...Southwest winds around 10 knots. Seas 2 to 3 feet. Wave
Detail: Southwest 2 feet at 4 seconds and south 2 feet at 7 seconds.
.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 late.

Winds and seas higher in and near thunderstorms.

$$