Event narrative (NOAA)
Winds downed a large tree into an occupied tent. One 12 year old boy was crushed beneath the tree with two others in the tent slightly injured. A fourth boy was unharmed. These four and several others were camped out in the backyard of the "family" home and were there for a family reunion. All were sleeping when the winds struck.
Other notable thunderstorm wind events in Iowa
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.