How Do They Form?
A Tornado usually starts out as a developing thunder cloud (Cumulonimbus) with a weak updraft. Warm humid air moves upward into the cloud creating a strong updraft which expands the top of the cloud. In order to have these weather conditions, there must be low air pressure levels. A cold front and a warm front collide and blow at different levels which causes the air to rotate. The faster the wind speed, the faster the rotation, and a tornado is formed.
One tornado that happened in the last decade was the Stoughton tornado which occured in 2005. It was an F3 tornado and it had winds that went up to 200 mph. It destroyed a 10 mile long strip of land in northern Stoughton. Many houses were torn down, many people were injured, and one person died.
The Tri-state tornado is known for holding many records. It holds the record for longest tornado track (219 mi), most deaths from a tornado, and most injuries from a tornado. This dangerous storm happened in 1925 and it killed 695 people. It injured 13,000 people and it caused $17 million in property damage. wiped out a large area of southern Illinois. Its average speed was 62 mph. I think we can all say this storm was truly devastating.
Impact on Human Life
Ways people can stay safe in during tornadoes are to watch the news and see what the weather man has to say, listen for tornado sirens to know when to duck and cover, find a room in a basement with no windows, or look on weather websites on the internet to look at your local radar. All of these will prevent things like severe injuries, or even death.