HomeForecastsLouisiana ForecastsE. Isle Dernieres, Lake Pelto Coastal Forecast

E. Isle Dernieres, Lake Pelto Coastal Forecast

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Coastal Waters Forecast
National Weather Service New Orleans LA
321 AM CDT Tue May 27 2025

Pascagoula to Atchafalaya River out to 60 NM

Seas are provided as a range of the average height of the highest
1/3 of the waves...along with the occasional height of the average
highest 10 percent of the waves.

GMZ500-GMZ501-272045-
321 AM CDT Tue May 27 2025

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

High pressure remains off to the east providing light but persistent
south to southeasterly winds through the middle of the week. Winds
will shift to a more west then northwest direction as a cold front
moves through Friday into early Saturday.

$$

GMZ530-272045-
Lake Pontchartrain and Lake Maurepas-
321 AM CDT Tue May 27 2025

.TODAY...South winds 5 to 10 knots. Waves 1 to 2 feet. Showers
likely this morning. A chance of thunderstorms. A chance of showers
this afternoon.
.TONIGHT...South winds 5 to 10 knots. Waves 1 foot or less. A chance
of showers and thunderstorms in the evening.
.WEDNESDAY...South winds around 5 knots. Waves 1 foot or less.
Showers likely with a chance of thunderstorms in the morning, then
showers with thunderstorms likely in the afternoon.
.WEDNESDAY NIGHT...Northwest winds around 5 knots, becoming south
after midnight. Waves 1 foot or less. A chance of showers and
thunderstorms.
.THURSDAY...Southwest winds around 5 knots. Waves 1 foot or less. A
chance of thunderstorms. Showers.
.THURSDAY NIGHT...Southwest winds 5 to 10 knots. Waves 1 foot or
less, then 1 to 2 feet after midnight. A chance of showers and
thunderstorms.
.FRIDAY...Northwest winds 5 to 10 knots. Waves around 2 feet.
Showers likely with a chance of thunderstorms.
.FRIDAY NIGHT...North winds 5 to 10 knots. Waves around 2 feet. A
slight chance of showers and thunderstorms in the evening.
.SATURDAY...North winds 5 to 10 knots, becoming northwest in the
afternoon. Waves 1 to 2 feet in the morning, then 1 foot or less.
.SATURDAY NIGHT...West winds around 5 knots. Waves 1 foot or less.

Winds and waves higher in and near thunderstorms.

$$

GMZ534-272045-
Lake Borgne-
321 AM CDT Tue May 27 2025

.TODAY...South winds around 10 knots. Waves around 2 feet. Showers
likely this morning. A chance of thunderstorms. A chance of showers
this afternoon.
.TONIGHT...South winds 5 to 10 knots. Waves 1 to 2 feet in the
evening, then 1 foot or less. A chance of showers and thunderstorms,
mainly in the evening.
.WEDNESDAY...South winds around 5 knots. Waves 1 foot or less.
Showers likely with a chance of thunderstorms in the morning, then
showers and thunderstorms likely in the afternoon.
.WEDNESDAY NIGHT...South winds around 5 knots. Waves 1 foot or less.
A chance of showers and thunderstorms.
.THURSDAY...Southwest winds 5 to 10 knots. Waves 1 foot or less. A
chance of thunderstorms. Showers.
.THURSDAY NIGHT...Southwest winds 5 to 10 knots. Waves 1 foot or
less, then around 2 feet after midnight. A chance of showers and
thunderstorms.
.FRIDAY...West winds around 10 knots. Waves around 2 feet. Showers
likely with a chance of thunderstorms.
.FRIDAY NIGHT...North winds around 10 knots. Waves around 2 feet. A
slight chance of thunderstorms. A chance of showers, mainly in the
evening.
.SATURDAY...North winds 5 to 10 knots. Waves around 2 feet in the
morning, then 1 foot or less.
.SATURDAY NIGHT...West winds around 5 knots. Waves 1 foot or less.

Winds and waves higher in and near thunderstorms.

$$

GMZ532-272045-
Mississippi Sound-
321 AM CDT Tue May 27 2025

.TODAY...South winds around 10 knots. Waves around 2 feet. A chance
of showers. A slight chance of thunderstorms early this morning,
then a chance of thunderstorms late this morning and afternoon.
.TONIGHT...Southwest winds 5 to 10 knots. Waves 1 to 2 feet. A
chance of showers and thunderstorms, mainly in the evening.
.WEDNESDAY...Southwest winds 5 to 10 knots. Waves 1 foot or less.
Showers likely. A chance of thunderstorms in the morning, then
thunderstorms likely in the afternoon.
.WEDNESDAY NIGHT...Southwest winds 5 to 10 knots. Waves 1 foot or
less. A chance of showers and thunderstorms.
.THURSDAY...Southwest winds 5 to 10 knots. Waves 1 foot or less,
then around 2 feet in the afternoon. A chance of thunderstorms.
Showers.
.THURSDAY NIGHT...Southwest winds around 10 knots. Waves around
2 feet. A chance of showers and thunderstorms.
.FRIDAY...West winds around 10 knots. Waves 2 to 3 feet. Showers
likely. A chance of thunderstorms in the morning, then thunderstorms
likely in the afternoon.
.FRIDAY NIGHT...North winds 10 to 15 knots. Waves 2 to 3 feet. A
slight chance of thunderstorms. A chance of showers, mainly in the
evening.
.SATURDAY...North winds 5 to 10 knots, becoming northwest in the
afternoon. Waves 1 to 2 feet.
.SATURDAY NIGHT...West winds 5 to 10 knots, becoming northwest after
midnight. Waves around 2 feet in the evening, then 1 foot or less.

Winds and waves higher in and near thunderstorms.

$$

GMZ536-538-272045-
Chandeleur Sound-Breton Sound-
321 AM CDT Tue May 27 2025

.TODAY...South winds around 10 knots. Waves around 2 feet. A chance
of showers. A slight chance of thunderstorms this morning, then a
chance of thunderstorms this afternoon.
.TONIGHT...South winds 5 to 10 knots. Waves around 2 feet in the
evening, then 1 foot or less. A slight chance of showers and
thunderstorms.
.WEDNESDAY...Southwest winds 5 to 10 knots, becoming south in the
afternoon. Waves 1 foot or less. Showers likely with a chance of
thunderstorms.
.WEDNESDAY NIGHT...South winds 5 to 10 knots. Waves 1 foot or less.
A chance of showers and thunderstorms.
.THURSDAY...Southwest winds 5 to 10 knots. Waves 1 foot or less,
then around 2 feet in the afternoon. A chance of thunderstorms.
Showers likely.
.THURSDAY NIGHT...Southwest winds around 10 knots. Waves 2 to
3 feet. A chance of showers and thunderstorms.
.FRIDAY...West winds 10 to 15 knots. Waves 2 to 3 feet. Showers
likely. A chance of thunderstorms in the morning, then thunderstorms
likely in the afternoon.
.FRIDAY NIGHT...North winds 10 to 15 knots. Waves 2 to 3 feet. A
chance of showers. A chance of thunderstorms, mainly in the evening.
.SATURDAY...North winds 10 to 15 knots, diminishing to 5 to 10 knots
in the afternoon. Waves around 2 feet in the morning, then 1 foot or
less. A slight chance of showers in the morning.
.SATURDAY NIGHT...West winds 5 to 10 knots. Waves 1 foot or less.

Winds and waves higher in and near thunderstorms.

$$

GMZ555-557-272045-
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-
321 AM CDT Tue May 27 2025

.TODAY...South winds around 10 knots. Seas around 2 feet. Wave
Detail: South 2 feet at 5 seconds. A chance of showers. A slight
chance of thunderstorms this morning, then a chance of thunderstorms
this afternoon.
.TONIGHT...South winds 5 to 10 knots. Seas around 2 feet. Wave
Detail: South 2 feet at 5 seconds. A slight chance of showers and
thunderstorms.
.WEDNESDAY...South winds 5 to 10 knots. Seas around 2 feet. Wave
Detail: South 2 feet at 5 seconds. A chance of thunderstorms.
Showers likely, mainly in the morning.
.WEDNESDAY NIGHT...South winds 5 to 10 knots. Seas around 2 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.
.THURSDAY...Southwest winds 5 to 10 knots. Seas around 2 feet. Wave
Detail: South 2 feet at 5 seconds. Showers likely with a chance of
thunderstorms.
.THURSDAY NIGHT...Southwest winds around 10 knots. Seas around
2 feet. Wave Detail: South 2 feet at 6 seconds. A chance of
thunderstorms. A chance of showers in the evening, then showers
likely after midnight.
.FRIDAY...West winds 10 to 15 knots. Seas around 2 feet. Wave
Detail: West 2 feet at 3 seconds and south 2 feet at 6 seconds.
Thunderstorms likely. Showers.
.FRIDAY NIGHT...Northwest winds 10 to 15 knots, becoming north after
midnight. Seas around 2 feet. Wave Detail: West 2 feet at 3 seconds
and south 2 feet at 6 seconds. A chance of showers. A chance of
thunderstorms, mainly in the evening.
.SATURDAY...North winds 10 to 15 knots, diminishing to 5 to 10 knots
in the afternoon. Seas around 2 feet. Wave Detail: North 2 feet at
4 seconds and southeast 1 foot at 6 seconds. A slight chance of
showers.
.SATURDAY NIGHT...West winds 5 to 10 knots. Seas around 2 feet. Wave
Detail: Northeast 1 foot at 4 seconds and southeast 1 foot at
6 seconds. A slight chance of showers after midnight.

Winds and seas higher in and near thunderstorms.

$$

GMZ550-552-272045-
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-
321 AM CDT Tue May 27 2025

.TODAY...South winds around 10 knots. Seas 2 to 3 feet. Wave Detail:
South 3 feet at 5 seconds. A chance of showers this morning. A
slight chance of thunderstorms late this morning and afternoon. A
slight chance of showers this afternoon.
.TONIGHT...South winds 5 to 10 knots. Seas 1 to 2 feet. Wave Detail:
South 2 feet at 5 seconds. A slight chance of showers and
thunderstorms.
.WEDNESDAY...South winds 5 to 10 knots. Seas 1 to 2 feet. Wave
Detail: South 2 feet at 6 seconds. Showers likely with a chance of
thunderstorms.
.WEDNESDAY NIGHT...South winds 5 to 10 knots. Seas 1 to 2 feet. Wave
Detail: South 2 feet at 6 seconds. A chance of showers and
thunderstorms.
.THURSDAY...South winds 5 to 10 knots. Seas 1 to 2 feet. Wave
Detail: South 2 feet at 7 seconds. A chance of thunderstorms.
Showers likely, mainly in the morning.
.THURSDAY NIGHT...Southwest winds 5 to 10 knots. Seas 1 to 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.
.FRIDAY...West winds around 10 knots. Seas 2 to 3 feet. Wave Detail:
Southwest 2 feet at 5 seconds. Showers likely with a chance of
thunderstorms.
.FRIDAY NIGHT...Northwest winds around 10 knots, becoming north
after midnight. Seas 1 to 2 feet. Wave Detail: West 2 feet at
4 seconds and south 2 feet at 6 seconds. A chance of showers and
thunderstorms.
.SATURDAY...North winds 5 to 10 knots. Seas 1 to 2 feet. Wave
Detail: North 2 feet at 3 seconds and south 2 feet at 6 seconds. A
slight chance of showers.
.SATURDAY NIGHT...Southwest winds 5 to 10 knots. Seas 1 to 2 feet.
Wave Detail: Northeast 1 foot at 2 seconds and south 1 foot at
6 seconds. A slight chance of showers after midnight.

Winds and seas higher in and near thunderstorms.

$$

GMZ575-577-272045-
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-
321 AM CDT Tue May 27 2025

.TODAY...South winds 5 to 10 knots. Seas around 2 feet. Wave Detail:
South 2 feet at 5 seconds. A chance of showers. A slight chance of
thunderstorms this afternoon.
.TONIGHT...South winds 5 to 10 knots. Seas around 2 feet. Wave
Detail: South 2 feet at 5 seconds. A slight chance of showers and
thunderstorms.
.WEDNESDAY...South winds 5 to 10 knots. Seas around 2 feet. Wave
Detail: South 2 feet at 5 seconds. A chance of thunderstorms.
Showers likely, mainly in the morning.
.WEDNESDAY NIGHT...South winds 5 to 10 knots. Seas around 2 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.
.THURSDAY...South winds 5 to 10 knots. Seas around 2 feet. Wave
Detail: South 2 feet at 5 seconds. A chance of thunderstorms.
Showers likely, mainly in the morning.
.THURSDAY NIGHT...Southwest winds 5 to 10 knots. Seas around 2 feet.
Wave Detail: South 2 feet at 6 seconds. A chance of showers. A
slight chance of thunderstorms in the evening, then a chance of
thunderstorms after midnight.
.FRIDAY...West winds 10 to 15 knots. Seas around 2 feet. Wave
Detail: West 2 feet at 3 seconds and south 2 feet at 6 seconds.
Showers with thunderstorms likely in the morning, then showers
likely with a chance of thunderstorms in the afternoon.
.FRIDAY NIGHT...West winds 10 to 15 knots, becoming north after
midnight. Seas 2 to 3 feet. Wave Detail: West 2 feet at 4 seconds
and south 2 feet at 6 seconds. Showers likely with a chance of
thunderstorms.
.SATURDAY...North winds 10 to 15 knots, diminishing to 5 to 10 knots
in the afternoon. Seas 2 to 3 feet. Wave Detail: North 2 feet at
4 seconds and south 2 feet at 5 seconds. A chance of showers with a
slight chance of thunderstorms in the morning, then a slight chance
of showers in the afternoon.
.SATURDAY NIGHT...Northwest winds 5 to 10 knots. Seas around 2 feet.
Wave Detail: North 1 foot at 4 seconds and south 1 foot at
5 seconds. A slight chance of thunderstorms in the evening. A slight
chance of showers.

Winds and seas higher in and near thunderstorms.

$$

GMZ570-572-272045-
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-
321 AM CDT Tue May 27 2025

.TODAY...South winds 10 to 15 knots. Seas 2 to 3 feet. Wave Detail:
South 3 feet at 5 seconds. A slight chance of showers early this
morning, then a chance of showers late this morning. A slight chance
of showers and thunderstorms this afternoon.
.TONIGHT...South winds around 10 knots. Seas 2 to 3 feet. Wave
Detail: South 3 feet at 6 seconds. A slight chance of showers and
thunderstorms.
.WEDNESDAY...South winds 5 to 10 knots. Seas 2 to 3 feet. Wave
Detail: South 3 feet at 6 seconds. A chance of showers and
thunderstorms.
.WEDNESDAY NIGHT...South winds 5 to 10 knots. Seas 2 to 3 feet. Wave
Detail: South 3 feet at 7 seconds. A chance of showers. A slight
chance of thunderstorms in the evening, then a chance of
thunderstorms after midnight.
.THURSDAY...South winds 5 to 10 knots. Seas 2 to 3 feet. Wave
Detail: South 3 feet at 7 seconds. A chance of showers and
thunderstorms.
.THURSDAY NIGHT...Southwest winds 5 to 10 knots. Seas 2 to 3 feet.
Wave Detail: South 3 feet at 6 seconds. A slight chance of showers
and thunderstorms in the evening, then a chance of showers and
thunderstorms after midnight.
.FRIDAY...West winds around 10 knots. Seas 2 to 3 feet. Wave Detail:
South 3 feet at 6 seconds. Showers likely with a chance of
thunderstorms.
.FRIDAY NIGHT...Northwest winds around 10 knots, becoming north
after midnight. Seas 2 to 3 feet. Wave Detail: West 2 feet at
4 seconds and south 2 feet at 6 seconds. A chance of showers and
thunderstorms.
.SATURDAY...North winds 5 to 10 knots. Seas 2 to 3 feet. Wave
Detail: North 2 feet at 4 seconds and southeast 2 feet at 6 seconds.
A chance of showers with a slight chance of thunderstorms in the
morning, then a slight chance of showers in the afternoon.
.SATURDAY NIGHT...Northeast winds 5 to 10 knots, becoming south
after midnight. Seas around 2 feet. Wave Detail: North 1 foot at
4 seconds and south 1 foot at 6 seconds. A slight chance of showers.

Winds and seas higher in and near thunderstorms.

$$


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