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

Convection is the vertical movement of air caused by temperature differences, where warm air rises and cool air sinks. It...

Condensation is the process by which water vapor in the air cools and changes into liquid water. This process is crucial...

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

A large, organized thunderstorm with a rotating updraft, often producing severe weather such as tornadoes, hail, and heavy...

Local winds that blow from slopes to peaks as a result of the heating of the top slopes without being affected by general...

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

Frozen drizzle is a dangerous type of frozen rain. It’s a light rain that falls in very fine drops, which freezes on contact...

Cloud or rain droplets containing pollutants, such as oxides of sulfur and nitrogen, to make them acidic.

The formation of fog when warm and moist air passes over a cool or cold surface or, conversely, when cold air passes over...

The mass of air surrounding the earth and bound to it more or less permanently by the earth's gravitational attraction.