Why are tornadoes so difficult predict why this considered a problem?

There are two major reasons. The first is that we do not fully understand how tornadoes work. We do not know why some storms produce tornadoes while others don't.

Second, tornadoes are small-scale, short-lived weather phenomena, and so are influenced by small-scale minute influences in the atmosphere that are difficult or impossible to measure. A small shift in the wind a mile above the ground can affect where a tornado will touch down.

This is a problem because the difficulty in predicting tornadoes makes it difficult to send out accurate warnings. If an area is not warned properly or early enough, some people might not make it to safety in time, which can lead to more people being killed or injured. In addition, there are many false alarms, which leads to people not heeding warnings, thus putting themselves at greater risk.