MAPLETON, Iowa -- The National Weather Service has completed an initial damage assessment of the storm that tore through Mapleton, Iowa, on Saturday evening.
The National Weather Service says the storm's path length was 3.5 miles with a maximum width of 3/4 of a mile.
Monona County Emergency Management has estimated 12-14 injuries as a result of the storm, according to the NWS, the worst of which was a broken leg.
An EF3 storm is characterized by winds between 136 and 165 mph.