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 deviation from the normal or expected value in atmospheric or climatic conditions, often used in meteorology to identify...

An image on the weather radar that is convex to the direction of movement and resembles an arc shape, caused by mesoscale...

A condition in which the stratification of the atmosphere depends on both air temperature and pressure, and where surfaces...

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

The amount of water vapor present in the air, which can affect comfort levels and weather conditions.

A cloud that develops from Cirrus, completely or partially covering the sky, creating a halo effect, thin, sheet-like, milky...

A cold core low is a low-pressure system where the coldest temperatures are found near the center. These systems are often...

A term used to identify clouds with a base height below 6,000 feet in the observer's direction. Stratiform clouds consist...

Ice forms on the surface of highways in a very thin layer that is difficult to distinguish from the color of the asphalt...

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