Flash Flood — Crawford, Illinois

2025-07-27 · near Duncanville, Crawford, Illinois

Event narrative

Rising water forced the closure of Route 1 north of Flat Rock.

Wider weather episode

Clusters of slow-moving thunderstorms developed along an outflow boundary across southeast Illinois during the late afternoon and early evening of July 27th. The storms were primarily focused south of the I-70 corridor where rainfall rates of 1-3 inches per hour led to isolated flash flooding in Crawford County.

View location on OpenStreetMap → (38.9687, -87.6984)

Source: NOAA Storm Events Database, event_id 1277341. Narrative written by the NWS forecast office that issued the report.