Where do people go missing in tornadoes?

There are a number of reasons. People may have to leave their destroyed homes, but in the chaos either forget or are unable to contact friends and family. This can be further complicated by the fact the tornadoes can disrupt communications by destroying phone lines and cell towers.

Additionally some people, both dead and alive, can be buried in the rubble of their homes and it can take time to find them. In stronger tornadoes bodies may be blown away.