Dark blue cloudy sky

What is Arctic Air?

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

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Glossary

The jet stream forming the boundary between tropical air and sub-tropical air, characterized by isothermal compression and...

A deviation from the normal or expected value in atmospheric or climatic conditions, often used in meteorology to identify...

A towering cloud that often reaches great altitudes and is associated with thunderstorms, heavy rain, and sometimes severe...

The belt between 50-70 ° N and S latitudes in the Northern and Southern Hemispheres, adjacent to the Polar Region. Although...

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

The measure of the water vapor or moisture content in the air, expressed as the mass of water vapor per unit volume of air....

The narrow region between 35-40 ° N and S latitudes in the Northern and Southern Hemispheres, lying between the tropical...

An anvil is a cloud mostly composed of ice particles. Otherwise known as a cumulonimbus cloud, an anvil has reached the stratospheric...

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

An image on the weather radar that is convex to the direction of movement and resembles an arc shape, caused by mesoscale...