What is Arctic Air?

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...