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 upward movement of air caused by a topographic barrier, such as a mountain, which can lead to cloud formation and precipitation.

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

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

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

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

A thick cloud of tiny water droplets suspended in the atmosphere near the Earth's surface, significantly reducing visibility.

The formation of ice crystals on surfaces when the temperature drops below freezing, typically overnight, causing potential...

A tropical cyclone, also called a hurricane, is a severe tropical storm with wind speeds in excess of 74 mph. Known as a...

A line on a weather map connecting points of equal atmospheric pressure, used to identify high and low-pressure systems.

A low-pressure area with converging winds, rotating counterclockwise in the Northern Hemisphere and clockwise in the Southern...