Clouds are categorized into three main groups based on their altitude: cirrus, cumulus, and stratus. Cirrus clouds are high-altitude clouds, often appearing as thin, wispy strands. They are ...

PREMIUM Where are they going? They just won’t say: Cumulus clouds race across the sky. (Shutterstock) At any given moment, the sky over two-thirds of the planet’s surface is covered by clouds.

cumulus clouds can rapidly grow vertically into cumulonimbus. When the edges of these clouds look especially crisp, it’s a sign that heavy rain or snow may be imminent. Wispy cirrus are ice ...

Clouds that look like cartoon cotton balls or cauliflower are made up of tiny liquid water droplets and are called cumulus clouds ... enough for ice clouds, or cirrus, to form.

Clouds that look like cartoon cotton balls or cauliflower are made up of tiny liquid water droplets and are called cumulus clouds ... enough for ice clouds, or cirrus, to form.

Curious about whether the clouds you see mean sunny skies, roaring storms or a stunning sunset? Here’s your guide to the different types of clouds and what they mean for you.