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 towering cloud that often reaches great altitudes and is associated with thunderstorms, heavy rain, and sometimes severe...

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

Conduction is the transfer of heat or electricity through a material without the material itself moving. This occurs when...

Cloud condensation nuclei are tiny particles in the atmosphere, such as dust, salt, or pollutants, that provide surfaces...

The names given to the winds blowing from the four cardinal directions (north, east, south, and west - N, E, S, W) on a compass.

Observation of the sky from the observer's location where there are no clouds, and there is no obstruction to visibility....

A polar vortex is a circulating mass of air in the atmosphere, typically found in polar regions. This rotating air mass occurs...

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

Particles such as pollen, grass seeds, or dust in the air that cause allergies and are transported by winds.

An instrument that continuously records atmospheric pressure over time. It uses a barometer to measure pressure and creates...