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 middle cloud type within the B family in the international cloud classification. These are shaded clouds that can be white...

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

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

Nimbostratus clouds are thick, dark, gray clouds associated with rainy and gloomy days that block the Sun. These clouds,...

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

Anticyclones are areas of high atmospheric pressure that bring hot, dry weather in the summer and cold fronts in the winter.

An instrument for measuring atmospheric pressure.

The horizontal transport of any feature within the atmosphere due to the movement of air (wind). This includes phenomena...

A weather warning means that a weather hazard is occurring, imminent, or likely. In other words, severe weather is happening...

Snow that rises to 8 feet or higher.