In some places they would have to many tornado's around their place. Also tornado's can cause a lot of injury's to many people, they also could get hurt. so if there is a tornado make sure you take cover but stay away from all window's. The best place to tale cover is you basement because it's safe than on the top.
Some tornado's can be this dangerous but some can be more dangerous like they could be bigger huger like five football fields. Also some can cause more injury's to one personor more a lot of men, and women lost their family's from that tornado. It can touch down for a few second's or it could grid across the earth for mile's.
People will be warn if there is a tornado dy the poplice or if their is any one that saw the tornado. If you watch the NEW's they will warn you on there to but first they will look at the wether then they would tell you. They will tell you to take cover in your basement if you don't then find a place that you'll be safe in or pretected from the tornado, so you wont fly away.