Why do tornadoes cause so much damage?

Winds in tornadoes are extremely fast. Strong tornadoes can produce winds in excess of 120 mph, which can cause major damage to most structures and produce flying debris that can cause damage on impact.

The very strongest of tornadoes produce winds in excess of 200 or even 300 mph. Man-made structures cannot withstand such winds.
Winds in tornadoes are extremely fast. Strong tornadoes can produce winds in excess of 120 mph, which can cause major damage to most structures and produce flying debris that can cause damage on impact.

The very strongest of tornadoes produce winds in excess of 200 or even 300 mph. Man-made structures cannot withstand such winds.