What is Arctic Air?
A mass of very cold, dry air that mostly originates over the Arctic Ocean.
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Jet streams are strong, fast-flowing air currents in the upper levels of the atmosphere. They form when warm air masses meet...
Temperature scale, abbreviated as °C, found by accepting the freezing point of water at one atmospheric pressure as zero...
Occurs when centers of high pressure and/or low pressure set up over a region in such a way that they prevent other weather...
A polar vortex is a circulating mass of air in the atmosphere, typically found in polar regions. This rotating air mass occurs...
A towering cloud that often reaches great altitudes and is associated with thunderstorms, heavy rain, and sometimes severe...
The state of the atmosphere when it contains the maximum amount of water vapor possible at a given temperature and pressure.
In a severe storm, with a swirling motion in its left rear quadrant, a vertically rotating column of air, often seen with...
The formation of fog when warm and moist air passes over a cool or cold surface or, conversely, when cold air passes over...
Cloud condensation nuclei are tiny particles in the atmosphere, such as dust, salt, or pollutants, that provide surfaces...
The formation of ice crystals on surfaces when the temperature drops below freezing, typically overnight, causing potential...