Dark blue cloudy sky

What is Cumulus?

Large, fluffy white clouds with flat bases, typically indicating fair weather, though they can develop into storm clouds under the right conditions.

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Glossary

The mass of air surrounding the earth and bound to it more or less permanently by the earth's gravitational attraction.

A cold front is the leading edge of a cold air mass that replaces a warmer air mass. It is typically associated with sudden...

A storm characterized by the presence of lightning and its acoustic effect on the Earth's atmosphere known as thunder.

A sudden electrostatic discharge during a thunderstorm between electrically charged regions of a cloud, between clouds, or...

The formation of fog when warm and moist air passes over a cool or cold surface or, conversely, when cold air passes over...

A thin, white cloud layer that is intertwined or separate, arranged in regular order, and does not cast a shadow.

Cloud or rain droplets containing pollutants, such as oxides of sulfur and nitrogen, to make them acidic.

An elongated area of relatively low atmospheric pressure, often associated with unsettled weather conditions like storms...

Air laden with sand and dust, common in areas devoid of permanent vegetation, especially deserts.

Precipitation in the form of small balls or lumps of ice that form in thunderstorm updrafts and fall to the ground.