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

Considerable cloudiness refers to weather conditions where a large portion of the sky is covered with clouds, but some clear...

Anticyclones are areas of high atmospheric pressure that bring hot, dry weather in the summer and cold fronts in the winter.

A body that has the property of absorbing all electromagnetic radiation falling on it, and therefore is the theoretical body...

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

Occurs when centers of high pressure and/or low pressure set up over a region in such a way that they prevent other weather...

Thermodynamic changes occurring within a system without any exchange of heat with the surroundings. In the atmosphere, changes...

The decrease in temperature with height in an adiabatically rising air parcel (lapse rate). For dry air, this value is 1...

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

A continental air mass is a large body of air that forms over land, characterized by dry conditions due to the lack of moisture...

A prefix used in cloud nomenclature to describe middle-altitude clouds that form between 6,500 and 20,000 feet, such as altostratus...