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 line of severe thunderstorms that can form along or ahead of a cold front, often producing strong winds and heavy rain.

The state of the atmosphere when it contains the maximum amount of water vapor possible at a given temperature and pressure.

A periodic cooling of sea surface temperatures in the central and eastern Pacific Ocean, often leading to altered global...

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

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

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

A tropical cyclone, also called a hurricane, is a severe tropical storm with wind speeds in excess of 74 mph. Known as a...

A fixed potential temperature line on adiabats, or the process of thermodynamic changes within a system without any exchange...

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

Nor'easter is a meteorological event commonly observed in the Northeastern United States and typically occurs during the...