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

A fixed potential temperature line on adiabats, or the process of thermodynamic changes within a system without any exchange...

Any form of water - liquid or solid - that falls from the atmosphere to the Earth's surface, including rain, snow, sleet,...

The term used for turbulence occurring in the absence of clouds or cloud-like elements in the visible area. It is often observed...

A mass of very cold, dry air that mostly originates over the Arctic Ocean.

Condensation pressure deficit refers to the difference between the actual vapor pressure and the saturation vapor pressure...

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

Although it is also used for light winds, it is the general name given to the daily cyclical winds that occur mostly between...

An anvil is a cloud mostly composed of ice particles. Otherwise known as a cumulonimbus cloud, an anvil has reached the stratospheric...

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

Jet streams are strong, fast-flowing air currents in the upper levels of the atmosphere. They form when warm air masses meet...