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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

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

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 tropical cyclone, also called a hurricane, is a severe tropical storm with wind speeds in excess of 74 mph. Known as a...

The scientific study of climate, focusing on the analysis of long-term weather patterns and trends over time.

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

A weather system refers to the movement of warm and cold air across the globe, usually in a recurring pattern. Systems can...

Coastal flooding occurs when water from the ocean, sea, or large lakes inundates land areas along the coast, usually due...

The horizontal transport of any feature within the atmosphere due to the movement of air (wind). This includes phenomena...

A drainage wind that flows downhill due to gravity, often associated with cold air descending from elevated regions.

An anvil is a cloud mostly composed of ice particles. Otherwise known as a cumulonimbus cloud, an anvil has reached the stratospheric...