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 scientific study of climate, focusing on the analysis of long-term weather patterns and trends over time.

A weather watch means there is a risk of weather hazards in the near future, which could pose a threat to life/property....

Jet streams are strong, fast-flowing air currents in the upper levels of the atmosphere. They form when warm air masses meet...

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

Snow that rises to 8 feet or higher.

A type of low-altitude cloud that forms in uniform layers, often covering the entire sky and producing overcast conditions.

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

Considerable cloudiness refers to weather conditions where a large portion of the sky is covered with clouds, but some clear...

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

Perhaps you have come across them, maybe you are seeing them for the first time. These clouds, known as wave clouds, resemble...