Has there ever been a f6 tornado?

Related questions

1. What is the heaviest thing a tornado has picked up?
2. Can you feel a skyscraper sway?
3. Are Quonset huts tornado proof?
4. Are there tornado proof houses?
5. What's the worst tornado in history?
6. Can a skyscraper survive a tornado?
7. Can tornado destroy concrete house?
8. How much are steel master buildings?
9. Why is it called a Nissen hut?
10. Why is it called a Quonset hut?

Tags

1. #rating
2. #would
3. #unlikely
4. #impossible
5. #thing
6. #plotted
7. #which
8. #though
9. #ground
10. #tornado
11. #fujita
12. #winds
13. #level
14. #there
15. #tornados
16. #rated
17. #scale