What is Celsius?

Temperature scale, abbreviated as °C, found by accepting the freezing point of water at one atmospheric pressure as zero and the evaporation point as 100.

Glossary

The temperature at which air becomes saturated with moisture and water vapor begins to condense into liquid form, leading...

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

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

A bomb cyclone is a large mid-latitude storm that forms when a storm’s central pressure drops (i.e. “bombs out”), resulting...

The jet stream forming the boundary between tropical air and sub-tropical air, characterized by isothermal compression and...

A cold front is the leading edge of a cold air mass that replaces a warmer air mass. It is typically associated with sudden...

A polar vortex is a circulating mass of air in the atmosphere, typically found in polar regions. This rotating air mass occurs...

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

A cold core high is a high-pressure system with cold air at its center. These systems are typically associated with clear...

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

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