What is Arctic Air?

A mass of very cold, dry air that mostly originates over the Arctic Ocean.

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Ball lightning appears during thunderstorms, taking the shape of glowing, electric orbs in the sky. It can appear in a variety...

A sudden electrostatic discharge during a thunderstorm between electrically charged regions of a cloud, between clouds, or...

Large, fluffy white clouds with flat bases, typically indicating fair weather, though they can develop into storm clouds...

An instrument that continuously records atmospheric pressure over time. It uses a barometer to measure pressure and creates...

The formation of ice crystals on surfaces when the temperature drops below freezing, typically overnight, causing potential...

A body that has the property of absorbing all electromagnetic radiation falling on it, and therefore is the theoretical body...

A distinct layer in a body of water where the temperature changes rapidly with depth, separating warmer surface water from...

A fixed potential temperature line on adiabats, or the process of thermodynamic changes within a system without any exchange...

A middle cloud type within the B family in the international cloud classification. These clouds consist of water droplets...

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