Flash Flood — Jersey, Illinois

2019-08-12 · near Grafton, Jersey, Illinois

Event narrative

Up to 4 inches of rain fell in less than 5 hours causing flash flooding. Numerous roads were flooded and several cars were stuck in high water. No injuries were reported.

Wider weather episode

Elevated convection developed in response to low level moisture convergence just north of a slowly retreating warm front. With very high precipitable water values in excess of 2 inches, this created very heavy rainfall rates as the storms trained over the same locations for over 5 hours. This caused flash flooding in a number of locations.

View location on OpenStreetMap → (38.9700, -90.4500)

Source: NOAA Storm Events Database, event_id 851060. Narrative written by the NWS forecast office that issued the report.