how a tornado forms

4:12

1:16

6:58

5:25

13:41

5:10

5:32

4:56

2:27

31:35

6:46

3:48

2:47

2:21

1:51

5:52

5:35

6:34

3:06

15:15

4:01

5:51

1:00

1:43

5:08

1:45

3:02

2:36

4:37

2:43

2:06

1:58

4:02

2:51

1:38

17:04

3:39

3:51

42:20

3:46

2:23

1:04

2:08

10:05

15:11

15:21

00:53

7:09

2:45

11:04

1:01

1:16

00:06

30:25

1:10

10:02

1:40

3:06

5:42

4:09