Dark blue cloudy sky

What is Sublimation?

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

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Glossary

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

A scale for estimating wind speed based on observed conditions of the sea or land. It ranges from 0 (calm) to 12 (hurricane)...

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

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

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

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

The term 'cloudy' refers to weather conditions characterized by a significant amount of cloud cover in the sky. This may...

A towering cloud that often reaches great altitudes and is associated with thunderstorms, heavy rain, and sometimes severe...

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

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