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 situation where there is no advection because the constant pressure surfaces and temperature surfaces in the atmosphere...

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

A low-pressure area with converging winds, rotating counterclockwise in the Northern Hemisphere and clockwise in the Southern...

Frozen drizzle is a dangerous type of frozen rain. It’s a light rain that falls in very fine drops, which freezes on contact...

Convection is the vertical movement of air caused by temperature differences, where warm air rises and cool air sinks. It...

A narrow band of strong winds in the upper atmosphere, typically flowing from west to east and influencing weather patterns.

Local winds that blow from slopes to peaks as a result of the heating of the top slopes without being affected by general...

Indicates the amount of water the soil can absorb/retain through percolation. This capacity is around 7% in sandy soil and...

The lowest level of a given cloud or cloud layer in the atmosphere, relative to the observer's position above the ground.

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