I am linking an article that has an instagram video embedded in it. It shows what they describe as a dustnado. About 15 years ago I was playing in a slow pitch tournament here in Lincoln and saw this type of occurrence as well. it started around the backstop fence and blew away all the waiver sheets we had to sign. All of us just stood there for about 5 minutes watching those papers disappear into the sky.
https://www.msn.com/en-us/sports/ml...p&cvid=aad5fe2e324a4b4e9ebdf3e47baf1134&ei=63
https://www.msn.com/en-us/sports/ml...p&cvid=aad5fe2e324a4b4e9ebdf3e47baf1134&ei=63