I remember this one for sure it was a wild day. The tornado outbreak in Indiana on Sept. 20th 2002.
A humid day with dew points in the low 70s made for unusual weather conditions in September of 2002. This environment combined with an approaching low pressure system would lead to significant severe weather that afternoon, including several tornadoes within central Indiana.
Fall is not known as the primary season for impactful severe thunderstorms, but they are still prominent and cannot be ignored. We must use past events, like this, as a way to prepare for the uncertainty of fall weather in the future.
You can read more about the 9/20/02 Tornado outbreak here.