Today you are going to learn about Tornadoes.
Tornadoes are a violent roatating coloumn or air coming from a thunderstorm to the ground. Tornadoes are very dangerous. They are sometimes fatal. Wind speeds must be at least 40-70 miles to form.
There are 2 types of scale to measure tornadoes. One measures the wind damaage which is called the EF scale. Another one measures the Fujita scale. The Fujita scale measures