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 large-scale movement of air that distributes heat and moisture around the Earth, influencing weather patterns and climatic...

A strong wind typically ranging from 34 to 40 knots (39 to 46 miles per hour) and often associated with rough seas and stormy...

A small, intense downdraft that produces damaging winds at the surface, typically lasting a few minutes and often associated...

Considerable cloudiness refers to weather conditions where a large portion of the sky is covered with clouds, but some clear...

A very cold high pressure that originates over the Arctic Ocean.

A thermodynamic change process in the system without any exchange of heat or transfer of energy between systems. This process...

The term used for semi-stationary high-pressure centers such as the Azores and North Pacific Highs, which occur in the narrow...

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

A middle cloud type within the B family in the international cloud classification. These clouds consist of water droplets...

An instrument used to measure the speed, force, and sometimes the direction of the wind. It can be cup or pressure tube anemometers....