Because - at the centre of a tornado (or hurricane) is an area of low pressure. Wind is 'sucked' into the centre in an attempt to equalise the pressure.
When a tornado hits the ground, it produces an extremely loud and distinct sound, often described as a continuous roaring or freight train-like noise. This sound is caused by the powerful winds swirling and causing destruction, along with the debris and objects being picked up and thrown around by the tornado.
There is no set distance, especially since a tornado does not have a definite edge. In the weakest tornadoes even the most intense winds of the cores are not strong enough to lift a person off the ground, though they may knock you over. Large, violent tornadoes may pull you in from hundreds of yards away from the visible funnel. The greatest danger from a tornado, however, is not being sucked up but getting hit by flying or falling debris.
There are a couple sources of sound that are readily apparent. First there is the sound that made by the powerful wind as it moves across the ground, trees, and buildings. Some times you can also hear the sound of buildings being torn apart.
Being in a classroom during a tornado can be dangerous, but the likelihood of being killed depends on various factors such as the building's construction, the intensity of the tornado, and your proximity to windows or doors. It is generally safer to stay away from windows, seek shelter in an interior room, and follow safety protocols advised by authorities in such situations.
The exact causes of the sound is not entirely known. Part of the sound is simply produced as the strong wind moves along the ground and other objects, just as you might hear on turing other windstorms. Depending on where the tornado is and how strong it is, some of the sound may come from buildings and trees being torn apart.
Most tornadoes don't pick up, kill , or injure anyone. When it does happen it is usually no more than a few people; most tornado deaths are from being hit o crushed by debris. Exact figure are difficult to determine as this is not the sort of thing of which extensive records are kept.
You would most likely be killed by flying debris and assuming you actually made it into the vortex you could be lifted anywhere from tens to hundreds of feet in the air before being ejected sideways out of the funnel.
depends on the strength of it. if your sheltered, you should be fine. but if your outside during a tornado it's possible. **The odds are good if you are caught without cover underground in a F3 tornado. You do not actually get sucked up but blown away in the strong wind. Reports say that the actual danger does not come from being carried away by the winds but having being hit by large flying stuff picked up also.
To prevent debris and small stones being sucked into it.
Most deaths and injuries of a tornado are the result of people being hit by flying or falling debris.
That can help, but there are better things you can do to increase you chances of survival. The biggest danger in a tornado is not being sucked up but being hit by debris. The best idea is to get to the lowest floor of a sturdy building, especially and undergroudn basement or cellar. Try to put as many walls between yourself and the outside as possible.
Air in and near a tornado spirals inward and upward very rapidly. The strong winds can pick up objects to carry with them.
Most often, tornado victims are killed by flying debris, or being crushed by collapsing structures. Flying debris from even an EF3 or EF4 tornado can cause almost the same damage to a human being as a speeding bullet would.
If you are picked up by a tornado it is most likely that you will be thrown by it and most likely die on impact. However, in a few cases people have survived being carried by tornadoes with only minor injuries.
As the saying goes, it's not the fall that kills you; it's the landing. People who are picked up by tornadoes are likely to strike the ground with a signficant amount of force when they fall back down, often causing serious injury or death. In addtion a person caught in a tornado in any sort of structure is liket to be hit by flying debris. Most deaths in tornadoes are caused by debris, not from being picked up.
Yes. The funnel of a tornado does not have to reach the ground for the circulation to touch down. If there is swirling debris on the ground beneath a funnel cloud then the tornado has touched down and, if it is more than just dirt being lifted, is probably doing damage.
If you mean the debris being carried by a tornado, if it hasn't already been thrown out of the tornado it simply gets dropped to the ground once the tornado is no longer strong enough to carry it.