Dark blue cloudy sky

What is Relative Humidity?

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

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Glossary

The branch of science dealing with the laws of motion of air or other gases.

Large, fluffy white clouds with flat bases, typically indicating fair weather, though they can develop into storm clouds...

Condensation is the process by which water vapor in the air cools and changes into liquid water. This process is crucial...

The lowest level of a given cloud or cloud layer in the atmosphere, relative to the observer's position above the ground.

Considerable cloudiness refers to weather conditions where a large portion of the sky is covered with clouds, but some clear...

Confluence refers to the area where two or more air streams or bodies of water meet and combine. In meteorology, it often...

A line of severe thunderstorms that can form along or ahead of a cold front, often producing strong winds and heavy rain.

A line on a weather map connecting points of equal atmospheric pressure, used to identify high and low-pressure systems.

Convection is the vertical movement of air caused by temperature differences, where warm air rises and cool air sinks. It...

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