Flash Flood — Washington, Missouri

2025-04-04 to 2025-04-05 · near Caledonia, Washington, Missouri

Event narrative

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.

Wider weather episode

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.

View location on OpenStreetMap → (37.7852, -90.8176)

Source: NOAA Storm Events Database, event_id 1243976. Narrative written by the NWS forecast office that issued the report.