No. Buildings in Tornado-prone areas must be built with tornado shelters. Those are rooms within the building that are designed to withstand both a hit from a

No. Buildings in Tornado-prone areas must be built with tornado shelters. Those are rooms within the building that are designed to withstand both a hit from a tornado, and the debris. To be clear, the entire building does not need to be a tornado shelter. Just enough space within the building to hold its occupants.