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

A mass of very cold, dry air that mostly originates over the Arctic Ocean.

Coastal flooding occurs when water from the ocean, sea, or large lakes inundates land areas along the coast, usually due...

The temperature at which air becomes saturated with moisture and water vapor begins to condense into liquid form, leading...

The term used for turbulence occurring in the absence of clouds or cloud-like elements in the visible area. It is often observed...

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

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

A strong, downward wind caused by a localized column of air sinking rapidly, often resulting in damage similar to that caused...

Ice forms on the surface of highways in a very thin layer that is difficult to distinguish from the color of the asphalt...

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

An instrument used to measure the speed, force, and sometimes the direction of the wind. It can be cup or pressure tube anemometers....