this is the damage that different tornado strengths do:
EF0 small objects blown around, light damage to roofs.
EF1 severe roof damage, windows broken and mobile homes overturned, and trees get knocked.
EF2 roofs ripped away, cars overturned and mobile homes get destroyed.
EF3 outer walls collapsed, trucks and cars are tossed and weak homes get swept away.
EF4 inner walls collapsed, cars and trucks thrown far, and some homes get destroyed.
EF5 ground scouring, homes are swept clean and trees are ripped out of the ground.