Thunderstorms often begin to develop early in the day when the sun heats the air near the ground and pockets of warmer air start to rise in the atmosphere. When these pockets of air reach a certain ...

A clap of thunder can come as a surprise in the steady calm of falling snow. Here’s what causes it. By Camille Baker The major storm sweeping ice, snow and sleet across the Eastern United States this ...

More than 230 million people across the United States are at risk this weekend of impacts from a major winter storm or the bitter cold, according to the National Weather Service. Disruptive snowfall ...