A thunderstorm with cloud to ground lightning rages during the day in China on July 21, 2025. CREDIT: Photo by Liu Wei/Xinhua via Getty Images. Get the Popular Science daily newsletter💡 Breakthroughs ...
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 ...