034
FZUS54 KLIX 181037
CWFLIX

Coastal Waters Forecast
National Weather Service New Orleans LA
437 AM CST Wed Feb 18 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-GMZ501-182300-
437 AM CST Wed Feb 18 2026

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

As high pressure continues to shift eastward, a moderate onshore
flow of 10 to 15 knots will persist through the end of the week. A
strong cold front will move through the coastal waters Saturday
night into Sunday morning with high pressure building in again
behind it. The combination of a tight pressure gradient and cold air
advection will cause winds to strengthen and turn offshore again
Saturday night with small craft advisories likely necessary through
at least Sunday evening.

$$

GMZ530-182300-
Lake Pontchartrain and Lake Maurepas-
437 AM CST Wed Feb 18 2026

.TODAY...Southwest winds 5 to 10 knots. Waves 1 foot or less.
.TONIGHT...South winds 10 to 15 knots. Waves 1 foot or less.
.THURSDAY...South winds 10 to 15 knots with gusts up to 20 knots.
Waves 1 foot or less.
.THURSDAY NIGHT...South winds 10 to 15 knots. Waves 1 foot or less.
A chance of showers.
.FRIDAY...South winds 5 to 10 knots. Waves 1 foot or less. A chance
of showers.
.FRIDAY NIGHT...South winds around 10 knots. Waves 1 foot or less. A
slight chance of showers in the evening.
.SATURDAY...Southwest winds around 10 knots. Waves 1 foot or less. A
slight chance of showers in the morning, then a chance of showers
with a slight chance of thunderstorms in the afternoon.
.SATURDAY NIGHT...Northwest winds 15 to 20 knots, becoming north
20 to 25 knots after midnight. Waves 1 foot or less. A chance of
showers with a slight chance of thunderstorms in the evening, then a
slight chance of showers after midnight.
.SUNDAY...North winds 20 to 25 knots, diminishing to 15 to 20 knots
in the afternoon. Waves 1 foot or less.
.SUNDAY NIGHT...North winds 15 to 20 knots. Waves 1 foot or less.

Winds and waves higher in and near thunderstorms.

$$

GMZ534-182300-
Lake Borgne-
437 AM CST Wed Feb 18 2026

.TODAY...Southwest winds 5 to 10 knots. Waves 1 foot or less.
.TONIGHT...South winds around 10 knots. Waves 1 foot or less.
.THURSDAY...South winds 10 to 15 knots. Waves 1 foot or less. A
slight chance of showers in the afternoon.
.THURSDAY NIGHT...South winds 10 to 15 knots, becoming southwest
5 to 10 knots after midnight. Waves 1 foot or less. A chance of
showers.
.FRIDAY...South winds 5 to 10 knots. Waves 1 foot or less. A chance
of showers in the morning, then showers likely in the afternoon.
.FRIDAY NIGHT...South winds 5 to 10 knots. Waves 1 foot or less. A
chance of showers, mainly in the evening.
.SATURDAY...Southwest winds 5 to 10 knots. Waves 1 foot or less. A
chance of showers. A slight chance of thunderstorms in the
afternoon.
.SATURDAY NIGHT...West winds 10 to 15 knots, becoming north 20 to
25 knots after midnight. Waves 1 foot or less, then around 2 feet
after midnight. A chance of showers with a slight chance of
thunderstorms in the evening, then a slight chance of showers after
midnight.
.SUNDAY...North winds 25 to 30 knots, diminishing to around 20 knots
in the afternoon. Waves around 2 feet.
.SUNDAY NIGHT...North winds 20 to 25 knots. Waves around 2 feet.

Winds and waves higher in and near thunderstorms.

$$

GMZ532-182300-
Mississippi Sound-
437 AM CST Wed Feb 18 2026

.TODAY...South winds around 10 knots. Waves 1 foot or less.
.TONIGHT...South winds 10 to 15 knots. Waves 1 foot or less.
.THURSDAY...South winds 10 to 15 knots with gusts up to 20 knots.
Waves 1 foot or less. A chance of showers in the afternoon.
.THURSDAY NIGHT...Southwest winds 10 to 15 knots with gusts up to
20 knots. Waves around 2 feet. A chance of showers.
.FRIDAY...South winds around 10 knots. Waves 1 foot or less. Showers
likely.
.FRIDAY NIGHT...South winds around 10 knots. Waves 1 foot or less. A
chance of showers.
.SATURDAY...Southwest winds around 10 knots. Waves 1 foot or less. A
chance of showers in the morning, then showers likely with a slight
chance of thunderstorms in the afternoon.
.SATURDAY NIGHT...West winds 10 to 15 knots, becoming north 25 to
30 knots after midnight. Waves 1 foot or less, then 2 to 3 feet
after midnight. A slight chance of thunderstorms in the evening. A
chance of showers.
.SUNDAY...North winds 25 to 30 knots, diminishing to around 20 knots
in the afternoon. Waves 2 to 3 feet.
.SUNDAY NIGHT...North winds 20 to 25 knots. Waves around 2 feet.

Winds and waves higher in and near thunderstorms.

$$

GMZ536-538-182300-
Chandeleur Sound-Breton Sound-
437 AM CST Wed Feb 18 2026

.TODAY...South winds around 10 knots. Waves 1 foot or less.
.TONIGHT...South winds 10 to 15 knots. Waves 1 foot or less.
.THURSDAY...South winds 10 to 15 knots with gusts up to 20 knots.
Waves 1 foot or less. A chance of showers in the afternoon.
.THURSDAY NIGHT...Southwest winds 10 to 15 knots with gusts up to
20 knots. Waves 1 foot or less. A chance of showers.
.FRIDAY...South winds around 10 knots. Waves 1 foot or less. Showers
likely.
.FRIDAY NIGHT...South winds around 10 knots. Waves 1 foot or less. A
chance of showers.
.SATURDAY...Southwest winds around 10 knots. Waves 1 foot or less. A
chance of showers. A slight chance of thunderstorms in the
afternoon.
.SATURDAY NIGHT...West winds 10 to 15 knots, becoming north 25 to
30 knots after midnight. Waves 1 foot or less, then around 2 feet
after midnight. Showers likely with a slight chance of thunderstorms
in the evening, then a chance of showers after midnight.
.SUNDAY...North winds 25 to 30 knots, diminishing to 20 to 25 knots
in the afternoon. Waves 1 to 2 feet. A slight chance of showers in
the morning.
.SUNDAY NIGHT...North winds 20 to 25 knots. Waves 1 to 2 feet.

Winds and waves higher in and near thunderstorms.

$$

GMZ555-557-182300-
Coastal Waters from Boothville LA to Southwest Pass of the
Mississippi River out 20 nm-
Coastal waters from Pascagoula Mississippi to Stake Island out 20 NM-
437 AM CST Wed Feb 18 2026

.TODAY...South winds around 10 knots. Seas around 2 feet. Wave
Detail: Southeast 2 feet at 5 seconds.
.TONIGHT...South winds 10 to 15 knots. Seas 2 to 3 feet. Wave
Detail: South 2 feet at 4 seconds.
.THURSDAY...South winds 10 to 15 knots. Seas 2 to 3 feet. Wave
Detail: South 2 feet at 4 seconds. A slight chance of showers in the
afternoon.
.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:
South 2 feet at 4 seconds. A chance of showers.
.FRIDAY...South winds around 10 knots. Seas 2 to 4 feet,
occasionally to 5 feet. Wave Detail: South 3 feet at 7 seconds.
Showers likely.
.FRIDAY NIGHT...South winds around 10 knots. Seas 2 to 4 feet,
occasionally to 5 feet. Wave Detail: South 4 feet at 7 seconds. A
chance of showers.
.SATURDAY...Southwest winds around 10 knots. Seas 2 to 4 feet,
occasionally to 5 feet. Wave Detail: South 4 feet at 7 seconds. A
chance of showers. A slight chance of thunderstorms in the
afternoon.
.SATURDAY NIGHT...West winds 10 to 15 knots, becoming northwest
20 to 25 knots after midnight. Seas 2 to 4 feet, occasionally to
5 feet, building to 4 to 6 feet, occasionally to 8 feet after
midnight. Wave Detail: South 4 feet at 7 seconds and west 2 feet at
2 seconds, becoming northwest 4 feet at 4 seconds and south 4 feet
at 7 seconds. Showers likely with a slight chance of thunderstorms
in the evening, then a chance of showers after midnight.
.SUNDAY...North winds 25 to 30 knots, diminishing to 20 to 25 knots
in the afternoon. Seas 5 to 8 feet, occasionally to 10 feet. Wave
Detail: Southeast 6 feet at 7 seconds and north 4 feet at 4 seconds.
A slight chance of showers in the morning.
.SUNDAY NIGHT...North winds 20 to 25 knots. Seas 5 to 7 feet,
occasionally to 9 feet.

Winds and seas higher in and near thunderstorms.

$$

GMZ550-552-182300-
Coastal Waters from Port Fourchon LA to Lower Atchafalaya River LA
out 20 nm-
Coastal waters from the Southwest Pass of the Mississippi River to
Port Fourchon Louisiana out 20 NM-
437 AM CST Wed Feb 18 2026

.TODAY...South winds around 10 knots. Seas around 2 feet. Wave
Detail: South 2 feet at 4 seconds.
.TONIGHT...South winds 10 to 15 knots with gusts up to 20 knots.
Seas 2 to 3 feet. Wave Detail: South 3 feet at 5 seconds.
.THURSDAY...South winds 10 to 15 knots with gusts up to 20 knots.
Seas 2 to 3 feet. Wave Detail: South 3 feet at 5 seconds. A slight
chance of showers in the afternoon.
.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:
South 4 feet at 6 seconds. A slight chance of showers.
.FRIDAY...South winds around 10 knots. Seas 2 to 4 feet,
occasionally to 5 feet. Wave Detail: South 4 feet at 7 seconds. A
chance of showers.
.FRIDAY NIGHT...South 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 in the evening.
.SATURDAY...South winds around 10 knots. Seas 2 to 4 feet,
occasionally to 5 feet. Wave Detail: South 4 feet at 7 seconds. A
slight chance of showers in the morning, then a chance of showers
with a slight chance of thunderstorms in the afternoon.
.SATURDAY NIGHT...West winds 10 to 15 knots, becoming north 20 to
25 knots after midnight. Seas 3 to 5 feet, occasionally to 6 feet.
Wave Detail: Northwest 4 feet at 4 seconds and south 4 feet at
7 seconds. A chance of showers.
.SUNDAY...North winds 25 to 30 knots, diminishing to 20 to 25 knots
in the afternoon. Seas 3 to 5 feet, occasionally to 6 feet. Wave
Detail: North 4 feet at 3 seconds and south 2 feet at 7 seconds. A
slight chance of showers in the morning.
.SUNDAY NIGHT...North winds 20 to 25 knots. Seas 3 to 5 feet,
occasionally to 6 feet. Wave Detail: Northeast 4 feet at 2 seconds.

Winds and seas higher in and near thunderstorms.

$$

GMZ575-577-182300-
Coastal Waters from Stake Island LA to Southwest Pass of the
Mississippi River from 20 to 60 nm-
Coastal waters from Pascagoula Mississippi to Stake Island Louisiana
out 20 to 60 NM-
437 AM CST Wed Feb 18 2026

.TODAY...Southwest winds 10 to 15 knots. Seas around 2 feet. Wave
Detail: South 2 feet at 4 seconds. A slight chance of showers early
this afternoon.
.TONIGHT...South winds 10 to 15 knots. Seas 2 to 3 feet. Wave
Detail: South 3 feet at 5 seconds.
.THURSDAY...South winds 10 to 15 knots with gusts up to 20 knots.
Seas 2 to 3 feet. Wave Detail: South 3 feet at 5 seconds. A slight
chance of showers in the afternoon.
.THURSDAY NIGHT...South winds 10 to 15 knots with gusts up to
20 knots. Seas 3 to 4 feet, occasionally to 5 feet. Wave Detail:
South 4 feet at 6 seconds. A slight chance of showers in the
evening, then a chance of showers after midnight.
.FRIDAY...South winds around 10 knots. Seas 3 to 4 feet,
occasionally to 5 feet. Wave Detail: South 4 feet at 7 seconds. A
chance of showers.
.FRIDAY NIGHT...South winds around 10 knots. Seas 4 to 5 feet,
occasionally to 6 feet. Wave Detail: South 4 feet at 7 seconds. A
chance of showers, mainly in the evening.
.SATURDAY...South winds around 10 knots. Seas 3 to 4 feet,
occasionally to 5 feet. Wave Detail: South 4 feet at 7 seconds. A
chance of showers. A slight chance of thunderstorms in the
afternoon.
.SATURDAY NIGHT...Southwest winds 10 to 15 knots, becoming northwest
20 to 25 knots after midnight. Seas 3 to 4 feet, occasionally to
5 feet, building to 4 to 6 feet, occasionally to 8 feet after
midnight. Wave Detail: South 4 feet at 7 seconds, becoming northwest
5 feet at 5 seconds and south 4 feet at 7 seconds. Showers likely
with a slight chance of thunderstorms.
.SUNDAY...North winds 25 to 30 knots. Seas 8 to 11 feet,
occasionally to 14 feet. Wave Detail: Southeast 7 feet at 7 seconds
and northwest 7 feet at 7 seconds. A slight chance of showers in the
morning.
.SUNDAY NIGHT...North winds 25 to 30 knots. Seas 7 to 9 feet,
occasionally to 11 feet. Wave Detail: North 8 feet at 7 seconds.

Winds and seas higher in and near thunderstorms.

$$

GMZ570-572-182300-
Coastal waters from Port Fourchon Louisiana to Lower Atchafalaya
River LA from 20 to 60 NM-
Coastal waters from Southwest Pass of the Mississippi River to Port
Fourchon Louisiana from 20 to 60 NM-
437 AM CST Wed Feb 18 2026

.TODAY...South winds 10 to 15 knots. Seas 2 to 3 feet. Wave Detail:
South 3 feet at 5 seconds.
.TONIGHT...South winds 10 to 15 knots with gusts up to 20 knots.
Seas 2 to 4 feet, occasionally to 5 feet. Wave Detail: South 4 feet
at 5 seconds.
.THURSDAY...South winds 10 to 15 knots with gusts up to 20 knots.
Seas 3 to 4 feet, occasionally to 5 feet. Wave Detail: South 4 feet
at 5 seconds. A slight chance of showers in the afternoon.
.THURSDAY NIGHT...South winds 10 to 15 knots with gusts up to
20 knots. Seas 4 to 5 feet, occasionally to 6 feet. Wave Detail:
South 5 feet at 7 seconds. A slight chance of showers.
.FRIDAY...South winds 10 to 15 knots with gusts up to 20 knots. Seas
4 to 5 feet, occasionally to 6 feet. Wave Detail: South 4 feet at
7 seconds. A chance of showers.
.FRIDAY NIGHT...South winds 10 to 15 knots with gusts up to
20 knots. Seas 4 to 5 feet, occasionally to 6 feet. Wave Detail:
South 5 feet at 7 seconds. A slight chance of showers in the
evening.
.SATURDAY...South winds 10 to 15 knots. Seas around 4 feet,
occasionally to 5 feet. Wave Detail: South 4 feet at 7 seconds. A
slight chance of showers in the morning, then a chance of showers
with a slight chance of thunderstorms in the afternoon.
.SATURDAY NIGHT...West winds 10 to 15 knots, becoming north 20 to
25 knots after midnight. Seas around 4 feet, occasionally to 5 feet,
building to 5 to 7 feet, occasionally to 9 feet after midnight. Wave
Detail: South 4 feet at 7 seconds, becoming northwest 6 feet at
5 seconds and south 4 feet at 7 seconds. A chance of showers.
.SUNDAY...North winds 25 to 30 knots, diminishing to 20 to 25 knots
in the afternoon. Seas 7 to 10 feet, occasionally to 13 feet. Wave
Detail: East 8 feet at 7 seconds and northwest 6 feet at 7 seconds.
A slight chance of showers in the morning.
.SUNDAY NIGHT...North winds 20 to 25 knots. Seas 6 to 9 feet,
occasionally to 11 feet. Wave Detail: North 8 feet at 7 seconds.

Winds and seas higher in and near thunderstorms.

$$