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 formation of fog when warm and moist air passes over a cool or cold surface or, conversely, when cold air passes over...

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

A weather front formed when a cold front overtakes a warm front, lifting the warm air off the ground and resulting in a mix...

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

Temperature scale, abbreviated as °C, found by accepting the freezing point of water at one atmospheric pressure as zero...

The reflectance rate of a surface, indicating the amount of electromagnetic radiation reflected from the surface. It depends...

A weather warning means that a weather hazard is occurring, imminent, or likely. In other words, severe weather is happening...

Nor'easter is a meteorological event commonly observed in the Northeastern United States and typically occurs during the...

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