On the Web version -- I don't have the app handy -- there's a search box at upper right. If you enter "tornado", the hits include

How did pre-colonization, Midwest, Native Americans deal with tornados? Did they write any records of these types of storms?. EDITED to give credit after AutoModerator bot prodding: with pertinent answers by /u/SEpdx, /u/honeydoesntgobad, /u/ahalenia, /u/MomentOfArt, /u/Fizzygoo, /u/ThePostItNote, /u/contrarian_barbarian, /u/TheKolbrin, and /u/KingOfNipples69. (And some side discussion about the adoption of horses and use of tobacco, which I found interesting.)

That's in the FAQ (linked to in the sidebar of this page), Daily Life in the Past - Natural Disasters.

Also other posts that I didn't look at:

• How did Native Americans View Tornados?
• What did Native Americans (specifically those who lived on the Great Plains) do when a tornado came?
• What did Native Americans think of tornados?

et cetera.

But this is not to discourage further discussion. Since that discussion is archived, you won't be able to vote or reply there, so please feel free to ask more questions in this thread or another.