Harrison Township, IA is a Very High Risk area for tornados. According to records, the largest tornado in the Harrison Township area was an F5 in 2008 that caused 70 injuries and 9 deaths. *Tornado risk is calculated from the destruction path that has occured within 30 miles of the location.
Risk Level: Very High
Yearly Avg. of Tornados in Harrison Township, IA
Yearly Avg. of Fatalities in Harrison Township, IA