What is Arctic Air?
A mass of very cold, dry air that mostly originates over the Arctic Ocean.
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A line of severe thunderstorms that can form along or ahead of a cold front, often producing strong winds and heavy rain.
A rapidly rotating column of air extending from a thunderstorm to the ground, capable of causing significant damage.
The mass of air surrounding the earth and bound to it more or less permanently by the earth's gravitational attraction.
A weather system refers to the movement of warm and cold air across the globe, usually in a recurring pattern. Systems can...
The process by which a solid changes directly into a gas without first becoming a liquid, such as ice turning into water...
In a severe storm, with a swirling motion in its left rear quadrant, a vertically rotating column of air, often seen with...
A middle cloud type within the B family in the international cloud classification. These clouds consist of water droplets...
A cold core high is a high-pressure system with cold air at its center. These systems are typically associated with clear...
A type of cloud consisting mostly of small particles such as ice particles.
A closed low, also known as a cut-off low, is a low-pressure system that is entirely isolated from the main atmospheric circulation...

