A derecho is a large line or band of powerful or severe thunderstorms that creates a wind damage area more than 400 miles long and more than 60 miles wide. The thunderstorms in a derecho produce downbursts and sometimes tornadoes. Winds...

Lightning is spectacular, from a distance. It's nature's way of transferring electricity within the sky, or between the sky and the ground. When lightning is nearby, it is a threat to safety. People are struck by lightning, in many cases...

Lightning is spectacular, from a distance. It's nature's way of transferring electricity within the sky, or between the sky and the ground. When lightning is nearby, it is a threat to safety. People are struck by lightning, in many cases...

Lightning is spectacular, from a distance. It's nature's way of transferring electricity within the sky, or between the sky and the ground. When lightning is nearby, it is a threat to safety. People are struck by lightning, in many cases...

All thunderstorms create hazards of lightning. Some thunderstorms result in flash flooding, large hail, damaging wind or a tornado. See how to prepare for these threats at school, at home, or outside. Understand the difference between a...

Lightning is spectacular, from a distance. It's nature's way of transferring electricity within the sky, or between the sky and the ground. When lightning is nearby, it is a threat to safety. People are struck by lightning, in many cases...