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 ...

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 ...

A scary mass of clouds that looked like a tsunami hovering over a city was seen in Thailand. Footage shows the wall cloud shaped like tidal waves about to engulf the area in Sisaket province on July ...