Catnado

The Catnado is a supernatural, and unusual form of weather that the Cat sisters have the power to form.

Phenomenon
The Catnado is formed whenever Oliver's sisters have an equal set of emotions together. They all summon miniature tornadoes, and combine them into one tornado that is small enough to fit inside the house. It appears in the episode Heavy Meddle.

Appearance
The Catnado has strong levels of wind in a matter of rotation. The faces of Oliver's sisters are visible on its surface.

Known occurrences
The Catnado's first appearance was in the episode "Heavy Meddle". Oliver had made several weather reports to the viewers about his state in trying to avoid letting his sisters find out that he was being picked on by somebody at school so they wouldn't meddle. It seemed sunny and clear at first, but as soon as they found out, Oliver made an update that a storm would be approaching. It was then that the sisters found out that Oliver's bully was a girl skunk and assumed that her picking on him was a sign of romance. They all got so excited that they all got together and Oliver reported that they had formed the legendary Catnado. It would not cease until the sisters' wish for their brother to kiss his bully would come to fruition. Oliver had gotten caught in the eye of the "Her-ricane" and sought shelter in the bathroom, trying to deny their beliefs that the bully wanted to be his girlfriend, but soon came to concede to their beliefs. He faced the Catnado and stopped it by telling his sisters that he is ready to kiss his bully, and they had all turned back to normal.

It is unknown if Oliver's sisters really did form a tornado, or if it was part of his imagination, but when he got sucked into it could show that they did become a tornado for real which could probably be not really conform if that proves if it was real if the whole Catnado thing did really happen or not.