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 narrow band of strong winds in the upper atmosphere, typically flowing from west to east and influencing weather patterns.

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

The formation of ice crystals on surfaces when the temperature drops below freezing, typically overnight, causing potential...

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

Occurs when centers of high pressure and/or low pressure set up over a region in such a way that they prevent other weather...

A prefix used in cloud nomenclature to describe middle-altitude clouds that form between 6,500 and 20,000 feet, such as altostratus...

A rapidly rotating column of air extending from a thunderstorm to the ground, capable of causing significant damage.

A sudden electrostatic discharge during a thunderstorm between electrically charged regions of a cloud, between clouds, or...

A line on a weather map connecting points of equal atmospheric pressure, used to identify high and low-pressure systems.

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