Flash Flood in Washington County, Missouri

Flash Flood April 4, 2025 – April 5, 2025 · Washington County, Missouri

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

What the National Weather Service wrote

The Dent Branch of the Big River was reportedly swiftly running over Highway C where a bridge crosses the road. Rainfall totals through the event were on the order of 2.5 to 4.3 inches.

The wider storm

A stationary front over southern Missouri along with ample mid-level forcing, moisture, and efficient rain processes resulted in flooding across portions of east-central and southeast Missouri. Numerous roads across the St. Louis metropolitan area were impassable due to the heavy rainfall.

Began near Caledonia (37.7852, -90.8176).

Source: NOAA Storm Events Database, event 1243976. Narratives are written by the National Weather Service forecast office that issued the report.

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