Event narrative (NOAA)
A tornado developed approximately 3 miles east of McClelland, and developed prior to the dissipation of the EF-3 tornado that tracked near Treynor. This was confirmed by photo and video evidence of storm spotters. This tornado moved toward the north-northeast, damaging mainly trees, outbuildings and barns as it tracked towards Sumac Road and 330th Street. At this point, according to radar and storm damage indicators, the tornado rapidly intensified. An outbuilding was totally destroyed near Sycamore Road, and the tornado caused extensive tree damage east of 330th Road, south of Minden. The tornado intensified further, and widened to approximately 1200 yards as it impacted the town of Minden. Video and spotter reports indicate that there were multiple vortices within the tornado near Minden
Other notable tornado 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.