Flash Flood — Franklin, Missouri

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

Event narrative

The Department of Highways and the public reported multiple inaccessible roads in Franklin County due to flooding. These include parts of Highway A and Highway YY due to side ditches overflowing and Highway CC due to Big Creek flooding over the road and onto the other side. Notably, this is a low point on the highway. On April 5th, the Missouri Department of Transportation reported that Route W just past Sand Ford Road at the entrance to Meramec Caverns was closing due to flooding of the Meramec River. Franklin County received up to 6.2 inches of rain during this event.

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 → (38.5262, -91.0235)

Source: NOAA Storm Events Database, event_id 1243914. Narrative written by the NWS forecast office that issued the report.