Hi, since you're interested in prehistory particularly, it would be worth x-posting to our sister sub, /r/AskAnthropology. While there are some anthropologists here, there are more there.

Regardless, "tornadoes" happen to be one of this sub's more popular subjects, so you can get started in the FAQ section on Natural Disasters:

• How did Native Americans deal with massive hurricanes? answered by /u/irishpatobie and /u/rioabajo.
• How did people know about hurricanes or monsoons before modern weather tracking? answered by /u/Valmyr5
• When and how did people first notice that hurricanes have a spiral shape with an eye in the middle? answered by /u/changoplatanero
• The news is reporting Irma is the 'worst storm in the history of the Atlantic' - how far back does that documented history go, where can I find it? answered by /u/EatinToasterStrudel et. al.
• What did Native Americans (or other peoples that didn't have 'strong' structures) do in case of a hail storm? answered by /u/jschooltiger and /u/Reedstilt, see also here
• How did Pre-Contact Polynesian peoples deal with hurricanes/typhoons answered by [deleted]
• During the age of sail, what was the procedure for a reasonably sized ship to weather a hurricane?
• As a category 4 hurricane bears down on Florida, I wonder: how (if at all) did native Americans forecast/predict hurricanes? by /u/ohmytit