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Louisiana Drenched by Flash Floods: 1.5 Million Under Warning
9 May
Summary
- Flash flood warnings affected 1.5 million people across Louisiana.
- Rainfall rates reached up to 3 inches per hour in affected areas.
- Major interstates, including I-10, were impacted by the flooding.

As of Friday afternoon, flash flood warnings were in effect across Louisiana, affecting communities home to approximately 1.5 million people. The National Weather Service issued these critical alerts for 14 parishes due to slow-moving thunderstorms that produced dangerous rainfall rates. Residents experienced conditions where 1 to 3 inches of rain could fall within a single hour, quickly exceeding the capacity of local drainage infrastructure.
In the New Orleans metropolitan area, radar indicated storms capable of dropping up to 3 inches of rain hourly, with further precipitation expected through the evening. These warnings encompassed densely populated neighborhoods and vital transportation routes, including Interstates 10, 12, 55, 110, and 610. Meanwhile, farther north and west, areas around Baton Rouge also reported or braced for imminent flooding after receiving 1.5 to 3 inches of rain in a compressed timeframe.