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 expected rate of temperature decrease in an adiabatically rising air parcel when there is no heat exchange with the environment....

The occurrence of storms resulting from the horizontal advection of cold air at high levels or the horizontal advection of...

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

The decrease in temperature with height in an adiabatically rising air parcel (lapse rate). For dry air, this value is 1...

The measure of the water vapor or moisture content in the air, expressed as the mass of water vapor per unit volume of air....

A thermodynamic change process in the system without any exchange of heat or transfer of energy between systems. This process...

A polar vortex is a circulating mass of air in the atmosphere, typically found in polar regions. This rotating air mass occurs...

Condensation pressure deficit refers to the difference between the actual vapor pressure and the saturation vapor pressure...

A type of cloud consisting mostly of small particles such as ice particles.

A cold core low is a low-pressure system where the coldest temperatures are found near the center. These systems are often...