How Stuff Works: Tornado
http://science.howstuffworks.com/nature/climate-weather/storms/tornado.htmIllustrated basics about tornadoes and how they are rated.
Submitted in section: Weather Phenomena: Tornadoes: How Stuff Works: Tornado
Illustrated basics about tornadoes and how they are rated.
Submitted in section: Weather Phenomena: Tornadoes: How Stuff Works: Tornado