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 ...

An intense thunderstorm system brought rain and lightning to California's Coachella Valley. Dry lightning from these storms can spark wildfires, especially when vegetation is parched. Lightning is ...

The latest in what appears to be an unending stream of storms thundered through the Bay Area on Tuesday, producing violent claps of thunder and lightning bright enough to light up momentarily the gray ...