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

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

Any form of water - liquid or solid - that falls from the atmosphere to the Earth's surface, including rain, snow, sleet,...

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

A fixed potential temperature line on adiabats, or the process of thermodynamic changes within a system without any exchange...

Although it is also used for light winds, it is the general name given to the daily cyclical winds that occur mostly between...

A thick cloud of tiny water droplets suspended in the atmosphere near the Earth's surface, significantly reducing visibility.

A strong wind typically ranging from 34 to 40 knots (39 to 46 miles per hour) and often associated with rough seas and stormy...

Jet streams are strong, fast-flowing air currents in the upper levels of the atmosphere. They form when warm air masses meet...

Particles such as pollen, grass seeds, or dust in the air that cause allergies and are transported by winds.

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