Cumulonimbus clouds shoot up through the atmosphere, creating a tower known as an anvil - a clear sign thunderstorms are in the forecast. Their pouch-like appearance will make you do a double take ...

To simplify, a single cloud could weigh as many as a hundred elephants or about 12 fully loaded semi-trailer trucks. Cumulonimbus clouds, or rain clouds, are significantly denser and larger.

In Spring Hill, Tennessee, residents captured timelapse footage of a large storm cloud developing. This is what meteorologists call a cumulonimbus cloud - one of the most destructive - that leads ...

However, if the air is particularly warm and humid, and the atmosphere above is much colder, cumulus clouds can rapidly grow vertically into cumulonimbus. When the edges of these clouds look ...

Thunderstorms are produced in cumulonimbus clouds, which are some of the largest clouds in the atmosphere. The base of these clouds is usually between 300m metres and 1km above the ground ...