Dark blue cloudy sky

What is Cumulonimbus?

A towering cloud that often reaches great altitudes and is associated with thunderstorms, heavy rain, and sometimes severe weather like hail or tornadoes.

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Glossary

The amount of radiation, heat, or light passing through or flowing from a unit area of a surface.

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

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

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

A cloud that develops from Cirrus, completely or partially covering the sky, creating a halo effect, thin, sheet-like, milky...

A blizzard is a storm that lasts 3 hours or more, with persistent winds/frequent gusts of 35 mph or more along with significant...

The percentage of water vapor in the air relative to the maximum amount of water vapor the air can hold at a given temperature.

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

The mass of air surrounding the earth and bound to it more or less permanently by the earth's gravitational attraction.

An elongated area of relatively low atmospheric pressure, often associated with unsettled weather conditions like storms...