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

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

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

The state of the atmosphere when it contains the maximum amount of water vapor possible at a given temperature and pressure.

A thin, white cloud layer that is intertwined or separate, arranged in regular order, and does not cast a shadow.

The situation where there is no advection because the constant pressure surfaces and temperature surfaces in the atmosphere...

The term used for semi-stationary high-pressure centers such as the Azores and North Pacific Highs, which occur in the narrow...

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

The process by which a solid changes directly into a gas without first becoming a liquid, such as ice turning into water...

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