Coastal Waters Forecast for Lake Pontchartrain and Lake Maurepas (GMZ530) (Text-Only)
NWS Forecast for: Lake Pontchartrain and Lake Maurepas (GMZ530)
Issued by: National Weather Service New Orleans/Baton Rouge, LA
Last Update: 701 AM CDT Thu Sep 4 2025
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Today: West winds around 5 knots, becoming south around 5 knots late. Waves 1 foot or less.

Tonight: Southwest winds 5 to 10 knots. Waves around 2 feet in the evening, then 1 foot or less.

Friday: Southwest winds around 5 knots, becoming southeast in the afternoon. Waves 1 foot or less, then 1 to 2 feet in the afternoon.

Friday Night: Southeast winds 5 to 10 knots, becoming southwest after midnight. Waves around 2 feet in the evening, then 1 foot or less.

Saturday: Northwest winds around 5 knots, becoming east around 5 knots in the afternoon. Waves 1 foot or less.

Saturday Night: South winds around 5 knots, becoming northwest after midnight. Waves 1 foot or less.

Sunday: Northeast winds 5 to 10 knots. Waves around 2 feet in the morning, then 1 foot or less. A slight chance of showers and thunderstorms in the afternoon.

Sunday Night: Northeast winds 5 to 10 knots, increasing to 10 to 15 knots after midnight. Waves 2 to 3 feet.

Monday: Northeast winds 10 to 15 knots. Waves 2 to 3 feet.

Monday Night: Northeast winds 5 to 10 knots. Waves around 2 feet.

winds and waves higher in and near thunderstorms.







Zone Forecast: Lake Pontchartrain and Lake Maurepas (GMZ530)

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