Marine Weather Net

Lake Pontchartrain and Lake Maurepas Marine Forecast


REST OF TODAY

NW
WINDS
5 KNOTS

TONIGHT

SE
WINDS
5 KNOTS

SUNDAY

E
WINDS
5 KNOTS

SUNDAY NIGHT

SE
WINDS
5 - 10
KNOTS

The Marine Weather Forecast In Detail:
GMZ530 Forecast Issued: 1035 AM CDT Sat Jun 21 2025

Rest Of Today...Northwest Winds Around 5 Knots, Becoming Southeast This Afternoon. Waves 1 Foot Or Less. A Slight Chance Of Showers And Thunderstorms This Afternoon.
Tonight...Southeast Winds Around 5 Knots. Waves 1 Foot Or Less.
Sunday...East Winds Around 5 Knots, Increasing To 5 To 10 Knots In The Afternoon. Waves 1 Foot Or Less, Then Around 2 Feet In The Afternoon. A Chance Of Showers And Thunderstorms In The Afternoon.
Sunday Night...Southeast Winds 5 To 10 Knots. Waves 1 To 2 Feet In The Evening, Then 1 Foot Or Less.
Monday...East Winds 5 To 10 Knots. Waves 1 To 2 Feet. A Slight Chance Of Showers And Thunderstorms In The Morning, Then Showers And Thunderstorms Likely In The Afternoon.
Monday Night...East Winds 5 To 10 Knots. Waves 1 To 2 Feet In The Evening, Then 1 Foot Or Less. A Slight Chance Of Showers And Thunderstorms.
Tuesday...East Winds 5 To 10 Knots. Waves Around 2 Feet. A Chance Of Thunderstorms. A Chance Of Showers In The Morning, Then Showers Likely In The Afternoon.
Tuesday Night...Southeast Winds 5 To 10 Knots. Waves 1 To 2 Feet In The Evening, Then 1 Foot Or Less. A Slight Chance Of Showers And Thunderstorms In The Evening.
Wednesday...East Winds 5 To 10 Knots. Waves 1 Foot Or Less, Then Around 2 Feet In The Afternoon. A Slight Chance Of Showers And Thunderstorms In The Morning, Then A Chance Of Showers And Thunderstorms In The Afternoon.
Wednesday Night...Southeast Winds 5 To 10 Knots, Becoming South After Midnight. Waves 1 Foot Or Less. Winds And Waves Higher In And Near Thunderstorms.
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Area Forecast Discussion
National Weather Service New Orleans LA
337am CDT Sat Jun 21 2025

Long Term
(Sunday night through Friday) Issued at 224am CDT Sat Jun 21 2025

We may not see any tropical cyclones at the moment, but we difinitely see tropical waves(easterly waves) moving over the area and one of these looks to move through Tuesday. These simply boost our precipitation chances and can be breezy when interacting with the Bermuda High. We will keep with the normal chances of sh/ts into the first of the week but lift those chances for Tuesday, and this may come in during the morning hours around sunrise, especially along the coast. After Tue, precipitation numbers fall again to a more normal value. With these deep moisture waves moving through, there is always a chance to see waterspouts approaching the shoreline. These are normally weak and land normally disrupts their circulation unless there are stronger upper level processes involved. But each summer a few manage to just cross the coast before dissipating and can cause some wind damage. Otherwise, the rain can be beneficial from time to time as the heat ramps up.

Marine
Issued at 224am CDT Sat Jun 21 2025

Easterly to southeasterly winds less than 15kt is expected throughout this fcast. There is a chance of sh/ts each day and night. Some of these could become strong causing winds to shift and rise abruptly.

NOAA New Orleans LA Office: Watches - Warnings - Advisories
LA...
Heat Advisory from 11am this morning to 7pm CDT this evening for LAZ037-039-057-058-060-064-071-076>090.

GM...None. MS...
Heat Advisory from 11am this morning to 7pm CDT this evening for MSZ070-071-077-083>088.

GM...None.