What is the heaviest thing a tornado has picked up?

Related questions

1. Is it safe to be in a high rise during a tornado?
2. What's the worst tornado in history?
3. Can tornado destroy concrete house?
4. How much is a Kwanzaa Hut?
5. Who invented the Quonset hut?
6. Where does the name Quonset hut come from?
7. How much does a steel garage cost?
8. How much are steel master buildings?
9. What is a Quonset hut used for?
10. Is it safe to hide under stairs in a tornado?

Tags

1. #thing
2. #pounds
3. #moved
4. #tornado
5. #weighted
6. #pampa
7. #heaviest
8. #picked
9. #texas
10. #machinery