Coastal Waters Forecast for Lake Pontchartrain (GMZ531) (Text-Only)
NWS Forecast for: Lake Pontchartrain (GMZ531)
Issued by: National Weather Service New Orleans/Baton Rouge, LA
Last Update: 156 PM CDT Tue Jun 2 2026




This Afternoon: East winds around 5 knots. Seas 1 foot or less. A chance of showers and thunderstorms.

Tonight: East winds 5 to 10 knots. Seas 1 foot or less. A chance of showers and thunderstorms.

Wednesday: Northeast winds 10 to 15 knots with gusts up to 20 knots, becoming east 15 to 20 knots with gusts up to 30 knots in the afternoon. Seas 2 to 4 feet, occasionally to 5 feet. A chance of showers and thunderstorms in the morning, then showers and thunderstorms likely in the afternoon.

Wednesday Night: East winds 15 to 20 knots with gusts up to 30 knots. Seas 3 to 4 feet, occasionally to 5 feet. Showers and thunderstorms likely in the evening, then a chance of showers with a slight chance of thunderstorms after midnight.

Thursday: East winds 15 to 20 knots with gusts up to 30 knots. Seas 3 to 4 feet, occasionally to 5 feet. A chance of showers and thunderstorms, mainly in the morning.

Thursday Night: East winds 15 to 20 knots with gusts up to 25 knots. Seas 2 to 4 feet, occasionally to 5 feet.

Friday: East winds 10 to 15 knots, increasing to 15 to 20 knots in the afternoon. Seas 3 to 4 feet, occasionally to 5 feet. A chance of showers and thunderstorms in the morning, then showers and thunderstorms likely in the afternoon.

Friday Night: Southeast winds 15 to 20 knots, diminishing to 5 to 10 knots after midnight. Seas 2 to 4 feet, occasionally to 5 feet. A slight chance of thunderstorms. A slight chance of showers in the evening, then a chance of showers after midnight.

Saturday: Southeast winds 5 to 10 knots. Seas around 2 feet. Showers likely. A chance of thunderstorms in the morning, then thunderstorms likely in the afternoon.

Saturday Night: South winds 5 to 10 knots. Seas around 2 feet. A chance of showers and thunderstorms, mainly in the evening.

winds and seas higher in and near thunderstorms.







Zone Forecast: Lake Pontchartrain (GMZ531)

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