What is Arctic High?

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

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

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

Cloud or rain droplets containing pollutants, such as oxides of sulfur and nitrogen, to make them acidic.

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

The amount of radiation, heat, or light passing through or flowing from a unit area of a surface.

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

A rapidly rotating column of air extending from a thunderstorm to the ground, capable of causing significant damage.

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