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: 457 PM CST Wed Feb 25 2026




Tonight: South winds 10 to 15 knots. Waves 2 to 4 feet.

Thursday: South winds 10 to 15 knots with gusts up to 20 knots. Waves 2 to 3 feet.

Thursday Night: South winds 10 to 15 knots, becoming southwest 5 to 10 knots after midnight. Waves 2 to 3 feet in the evening, then 1 foot or less. A chance of showers in the evening, then showers likely with a slight chance of thunderstorms after midnight.

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

Friday Night: Northeast winds 5 to 10 knots. Waves 1 foot or less.

Saturday: Northeast winds 5 to 10 knots, becoming east in the afternoon. Waves 1 foot or less.

Saturday Night: East winds around 5 knots. Waves 1 foot or less.

Sunday: East winds 5 to 10 knots. Waves 1 to 2 feet.

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

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

Monday Night: Southeast winds around 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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