Lightning is an electrical discharge. Thunder is the resulting soundwave from the rapid expansion & contraction of the air surrounding that channel of discharge.

What causes thunder? Without lightning, there is no thunder. Thunder is simply the sound created by a bolt of lightning. When lightning occurs, it's about 50,000 degrees Fahrenheit.

A thunderstorm is one of the most energetic weather phenomena we see here in the UK. Helen Willetts explains the science ...

It takes approximately five seconds for the sound of thunder to travel one mile. That means yes, you can use thunder to estimate how far away a lightning strike was.

This time of year is when we get those garden-variety thunderstorms. But how exactly does lightning form, and what is the sound of thunder? I’ll take you through step by step.

The Central Valley was hit with heavy storms on Tuesday as the area also deals with near triple-digit temperatures.

What comes first, the thunder or the lightning? Thunder and lightning actually occur at the same time. But, light travels faster than sound, so we see the lightning first.

Weather Lightning before the thunder: Everything you need to know about nature's light show Learn more about lightning and thunderstorms as the weather transitions into spring's iconic showers.

IN-DEPTH: A lightning bolt’s flash will always be seen before its thunder is heard because light travels faster than sound. Lightning is an electrical discharge.

Lightning is an electrical discharge. Thunder is the resulting soundwave from the rapid expansion & contraction of the air surrounding that channel of discharge.

Sounds of thunder A “ crack ” is typically indicative of a nearby or relatively close thunderstorm and/or with a strike perpendicular to a person (ex. lightning bolt stretching from the cloud ...

AUSTIN (KXAN) – Have you ever wondered why thunder can have different sounds? A crack versus a rumble? Startlingly loud versus calmingly low? Let’s dive in … The basics: what is thunder ...