Not all scary, suspicious clouds looming beneath a storm are an indication that a tornado is imminent. The Weather Network meteorologist Jaclyn Whittal explains scud clouds. Denmark privately sent ...

Maybe even a bit scary. But what is a thunderstorm ... Thunderstorms start in clouds. Inside a storm cloud, bits of ice move up and down and bump into each other. And just like when you rub ...

"That's cold air coming down, out of the storm itself, moving ahead of [it]." He said other types of clouds, like lenticular clouds, could also present in a unique shape — but this particular ...