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

An anvil is a cloud mostly composed of ice particles. Otherwise known as a cumulonimbus cloud, an anvil has reached the stratospheric...

The decrease in temperature with height in an adiabatically rising air parcel (lapse rate). For dry air, this value is 1...

A deviation from the normal or expected value in atmospheric or climatic conditions, often used in meteorology to identify...

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

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

A measure of how hot it feels when relative humidity is combined with the actual air temperature, often referred to as the...

Weather intelligence is technology that provides predictive and actionable insights, allowing businesses to adapt to weather-related...

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

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

A tropical cyclone with sustained winds of at least 74 miles per hour, characterized by a central eye, strong winds, and...