Jun 11, 2018
A series of weak impulses interacted with a stationary frontal boundary extending from northeast Missouri to southwest Indiana to produce several rounds of thunderstorms across south-central Illinois from the evening of June 11th into the morning of June 12th. The strongest cells produced damaging wind gusts of around 60mph and hail as large as golf balls during the evening of June 11th. In addition, excessive rainfall rates occurring on top of already saturated soils led to localized flash fl
Source: NOAA National Weather Service Storm Events Database (event 770961). Narrative written by NWS staff at the time of the event.
This event is one of many recorded floods in Clark County. See the full FEMA flood zone map, NFIP claim totals, and disaster history for the area.