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: 537 AM CDT Sat Mar 28 2026
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Today: Northeast winds 20 to 25 knots, diminishing to 10 to 15 knots this afternoon. Waves 3 to 5 feet, subsiding to 2 to 3 feet this afternoon.

Tonight: Northeast winds around 10 knots. Waves 2 to 3 feet.

Sunday: East winds 10 to 15 knots, increasing to 15 to 20 knots in the afternoon. Waves 2 to 4 feet. A slight chance of showers in the afternoon.

Sunday Night: East winds 15 to 20 knots, becoming southeast 10 to 15 knots after midnight. Waves 2 to 4 feet.

Monday: Southeast winds 10 to 15 knots. Waves 2 to 3 feet. A slight chance of showers and thunderstorms in the morning, then a chance of showers and thunderstorms in the afternoon.

Monday Night: Southeast winds 10 to 15 knots with gusts up to 20 knots, diminishing to 5 to 10 knots after midnight. Waves 2 to 3 feet.

Tuesday: Southeast winds 5 to 10 knots, increasing to 10 to 15 knots in the afternoon. Waves 2 to 3 feet. A chance of thunderstorms. A chance of showers in the morning, then showers likely in the afternoon.

Tuesday Night: Southeast winds 10 to 15 knots. Waves 2 to 3 feet.

Wednesday: South winds 5 to 10 knots. Waves 2 to 3 feet. A chance of showers. A chance of thunderstorms in the afternoon.

Wednesday Night: South winds 10 to 15 knots. Waves 2 to 3 feet. A slight chance of showers and thunderstorms.

winds and waves higher in and near thunderstorms.







Zone Forecast: Lake Pontchartrain and Lake Maurepas (GMZ530)

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