What is Arctic Air?
A mass of very cold, dry air that mostly originates over the Arctic Ocean.
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A low-pressure area with converging winds, rotating counterclockwise in the Northern Hemisphere and clockwise in the Southern...
An anvil is a cloud mostly composed of ice particles. Otherwise known as a cumulonimbus cloud, an anvil has reached the stratospheric...
A polar vortex is a circulating mass of air in the atmosphere, typically found in polar regions. This rotating air mass occurs...
A sudden and rapid flow of snow masses accumulated on the slopes of mountainous areas under the influence of gravity or a...
The jet stream forming the boundary between tropical air and sub-tropical air, characterized by isothermal compression and...
The expected rate of temperature decrease in an adiabatically rising air parcel when there is no heat exchange with the environment....
A line on a weather map connecting points of equal atmospheric pressure, used to identify high and low-pressure systems.
Cloud or rain droplets containing pollutants, such as oxides of sulfur and nitrogen, to make them acidic.
A cold core high is a high-pressure system with cold air at its center. These systems are typically associated with clear...
The occurrence of storms resulting from the horizontal advection of cold air at high levels or the horizontal advection of...