
It was one supercell producing at least two strong tornadoes.
Our tornado was rated EF-3. Ratings refer to the highest damage reported; this one had EF-0, EF-1, EF-2, and EF-3 damage at various points, but it’s called “EF-3” because that got the highest rating. EF-3 damage was in Germantown, Donelson, and East Nashville. Here’s the zoom on Nashville/Davidson County: