Path length: 15.3 miles
Width: 400 yards
An estimated F4 tornado made its way from Ankeny, IA (northern Des Moines suburb), and moved southeast, ending near Runnels. It was a devastating event for the town of Ankeny. Two people were killed in their homes, and there were at least 50 injuries. Approx. 100 homes, a church, a drive-in restaurant, and a shopping center was destroyed. The path length was recorded in the SPC database as 15.3 miles; the Storm Data Narrative listed a 25-mile path.
We gathered information for this event from the SPC & NCDC Databases, the June 1974 Storm Data Publication and Thomas Grazulis in Significant Tornadoes and found the following differences:
- SPC/NCDC have a 15.3 mile path length.
- Storm Data has the length at 25 miles.
- Grazulis has a 19 mile length.