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 drainage wind that flows downhill due to gravity, often associated with cold air descending from elevated regions.

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

An instrument for measuring atmospheric pressure.

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

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

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

The situation where there is no advection because the constant pressure surfaces and temperature surfaces in the atmosphere...

A thin, white cloud layer that is intertwined or separate, arranged in regular order, and does not cast a shadow.

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

The lowest level of a given cloud or cloud layer in the atmosphere, relative to the observer's position above the ground.