Dark blue cloudy sky

What is Lightning?

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

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Glossary

Ball lightning appears during thunderstorms, taking the shape of glowing, electric orbs in the sky. It can appear in a variety...

The lowest level of a given cloud or cloud layer in the atmosphere, relative to the observer's position above the ground.

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

The amount of radiation, heat, or light passing through or flowing from a unit area of a surface.

A cloud of irregular appearance, composed of irregular cloud fragments.

The expected rate of temperature decrease in an adiabatically rising air parcel when there is no heat exchange with the environment....

A cold core high is a high-pressure system with cold air at its center. These systems are typically associated with clear...

A drainage wind that flows downhill due to gravity, often associated with cold air descending from elevated regions.

A large body of air having similar horizontal temperature and moisture characteristics.

The jet stream forming the boundary between tropical air and sub-tropical air, characterized by isothermal compression and...