Event narrative (NOAA)
Several streets on the south side of Mt. Vernon had standing water over them. Record flooding occurred on Rayse Creek in southwest Jefferson County. A motorist drowned after driving into the creek flooding on a county road south of Woodlawn. The incident occurred during the early morning hours of the 17th following the heavy rain on the 16th. The vehicle and driver were swept away in the creek. Both were recovered a couple days later. The storm total rainfall southwest of Mount Vernon was 6.0 inches, both at Scheller and Marcoe.
Other notable flood events in Illinois
Source: NOAA/NCEI Storm Events Database. Deaths and injuries are those NOAA classifies as direct. Damage is the reporting office's estimate at the time and is not inflation-adjusted. This is a catalogue record, not a forecast.