We just learned about what a Wall Cloud is.
Tornadoes are measured in science using something called the Fujita Scale which goes from F0 to F5, and stands for how much damage a tornado does.
![fujita scale](https://upload.wikimedia.org/wikipedia/commons/thumb/c/cf/Fujita_scale_technical.svg/428px-Fujita_scale_technical.svg.png)
(from: wikipedia - fujita scale)
Kid Facts - Blast from the past: Stratus Clouds