Tornado Ghost Towns p3 (Fan Edition!) And why some towns survive devastation

Thurman, Colorado. Last Chance, Colorado. Mose, North Dakota. Udall, Kansas. Hallam, Nebraska. (and a quick stop in Glazier, TX). Towns that didn't survive severe weather events.

Thurman, A Mennonite community declined soon after several families were devastated by an F4 Tornado.
Last Chance is famous for Tornadoes, including one near the end of its life. However it was a fire the ultimately doomed Last Chance.
Mose, ND didn't survive a major severe weather event. Was it a tornado? It's not conclusive.
Udall, KS and Hallam, NE seemed to have survived due to lucky distance from major metro areas, among other things.

What is a Derecho, and what could happen in a major event like with Mose?, or the recent example in central Iowa.

Why do large tornadoes seem to have wild variation within the parent tornado? El Reno and Hallam have some similarities here.

Dean Gill, Last Chance 1993 https://www.youtube.com/watch?v=WYhXI...
William Reid, Last Chance 2010. https://www.youtube.com/watch?v=u2jBK...
DevinWxChase: https://www.youtube.com/channel/UCd6X...
Skip Talbot: https://www.youtube.com/user/SkipTalbot and http://skip.cc

Griggs County Historical Society: https://www.griggscountyhistoricalsoc...

Udall Story: https://youtu.be/qU8nqsudXMU
Harrison Cater: https://www.youtube.com/channel/UCIpe...