GREENSBORO, N.C. — If you’ve ever looked up and seen a dark, menacing cloud stretching across the sky like a giant wedge, you’ve likely witnessed a shelf cloud. With their dramatic appearance and ...

We have another question to answer! Jim asks: "Hey, Ray, I recently heard about shelf clouds. They are an eerie sight indeed! Can you give a brief synopsis of how these fronts form?" Shelf clouds do ...

MADISON, Wis. - Both are ominous looking clouds that are sometimes present with thunderstorms and are often confused for each other. Let's take a look at a shelf cloud, a wall cloud and discuss how ...

Footage shows a rotating wall cloud above homes in Omaha, Nebraska, amid tornadoes in the region. The twister was part of an intense cluster of thunderstorms that struck eastern Nebraska and western ...