GEOLOGY

Detailed explanation-1: -The Tri-State Tornado of March 25, 1925. The Monster Tornado of April 9, 1947. The Tupelo, Mississippi F5 of April 5, 1936. The Joplin, Missouri, Twister of May 22, 2011. The New Richmond, Wisconsin “Circus Tornado” of June 12, 1899.

Detailed explanation-2: -The scale ranks tornadoes from F0 to F5, with F0 being the least intense and F5 being the most intense.

Detailed explanation-3: -Only two tornadoes, the 1970 Lubbock, Texas and 1974 Xenia, Ohio were ever rated F6.

Detailed explanation-4: -The original Fujita Scale actually goes up to F12. An F12 tornado would have winds of about 740 MPH, the speed of sound. Roughly 3/4 of all tornadoes are EF0 or EF1 tornadoes and have winds that are less than 100 MPH.

Detailed explanation-5: -The Deadliest and Fastest Tornado Ever The deadliest tornado ever happened on March 18, 1925. It is called the Tri-State Tornado because it occurred in three different states: Missouri, Illinois, and Indiana. The F5 tornado, which is also the longest ever, stretched for 219 miles across these three states.