Discovery Tornadoes 101 Scott Admin posted on 3 years ago — updated on 1 second ago 437 views Tornadoes are some of the most destructive forces of nature. Learn how tornadoes form, how they are rated, and the country where the most intense tornadoes occur. science discovery National Geographic tornado Scott Follow Author, educator, musician, dancer and all around creative type. Founder of "The Happy Now" website and the online jewelry store "Silver and Sage".