Submitted by UnsubstantiatedHuman t3_123mo9b in askscience
Tornadoes are devastating and they flatten entire towns. But I don't recall them flattening entire cities.
Is there something about heat production in the massed area? Is it that there is wind disturbance by skyscrapers? Could pollution actually be saving cities from the wind? Is there some weather thing nudging tornadoes away from major cities?
I don't know anything about the actual science of meteorology, so I hope if there is answer, it isn't too complicated.