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

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

Nor'easter is a meteorological event commonly observed in the Northeastern United States and typically occurs during the...

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 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 measurement determined by the wave lengths and sea conditions caused by the effect of wind, and by the movement of tree...

The process by which a solid changes directly into a gas without first becoming a liquid, such as ice turning into water...

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

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

In a severe storm, with a swirling motion in its left rear quadrant, a vertically rotating column of air, often seen with...