Flash Flood in Ascension Parish, Louisiana

Flash Flood December 9, 2024 · Ascension Parish, Louisiana

Where the report was made, with tornadoes recorded within 15 miles over the years.

What the National Weather Service wrote

A CO-OP observer reported that Lee Street in Donaldsonville was completely covered with water and impassible.

The wider storm

On December 9, 2024, a slow-moving cold front interacting with a deep moisture plume resulted in prolonged periods of heavy rainfall across southeastern Louisiana. Widespread rainfall totals of 4 to 8 inches were reported, with localized amounts exceeding 10 inches, particularly in the river parishes portions of the Northshore. The excessive rainfall led to flash flooding, with numerous road closures.

Began near Donaldsonville (30.1000, -90.9800).

Source: NOAA Storm Events Database, event 1228570. Narratives are written by the National Weather Service forecast office that issued the report.

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