Event narrative (NOAA)
A severe thunderstorm moved south across the eastern side of Colorado Springs, causing copious amounts of hail and heavy rain. Two teenage boys were in a drainage culvert on Cottonwood Creek near Woodmen Road and Austin Bluffs Parkway, when the wave of water hit, and both drowned. Farther south, near the Citadel Mall, poor drainage caused a 3 to 4 foot deep lake to develop with massive amounts of hail pouring into the deep water. Several vehicles were stranded and dozens of rescues took place. Some motorists and passengers suffered minor hypothermia in the icy cold water. Still farther south, the pavement on a bridge on Airport Road over Spring Creek was damaged by high, fast moving water.
Other notable flash flood events in Colorado
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.