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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

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

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

A deviation from the normal or expected value in atmospheric or climatic conditions, often used in meteorology to identify...

A cloud that develops from Cirrus, completely or partially covering the sky, creating a halo effect, thin, sheet-like, milky...

A sudden electrostatic discharge during a thunderstorm between electrically charged regions of a cloud, between clouds, or...

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

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

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

Weather conditions are the components that comprise the state of the atmosphere. The six main weather conditions are temperature,...

The trapping of heat in the Earth's atmosphere due to greenhouse gases, such as carbon dioxide and methane, which allows...