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

Coastal flooding occurs when water from the ocean, sea, or large lakes inundates land areas along the coast, usually due...

A periodic warming of sea surface temperatures in the central and eastern Pacific Ocean, significantly influencing global...

The reflectance rate of a surface, indicating the amount of electromagnetic radiation reflected from the surface. It depends...

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

Confluence refers to the area where two or more air streams or bodies of water meet and combine. In meteorology, it often...

The occurrence of storms resulting from the horizontal advection of cold air at high levels or the horizontal advection of...

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

Ball lightning appears during thunderstorms, taking the shape of glowing, electric orbs in the sky. It can appear in a variety...

A weather system refers to the movement of warm and cold air across the globe, usually in a recurring pattern. Systems can...