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What is Convection?

Convection is the vertical movement of air caused by temperature differences, where warm air rises and cool air sinks. It is a key process in cloud formation and weather dynamics.

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Glossary

A bomb cyclone is a large mid-latitude storm that forms when a storm’s central pressure drops (i.e. “bombs out”), resulting...

A sudden and rapid flow of snow masses accumulated on the slopes of mountainous areas under the influence of gravity or a...

A polar vortex is a circulating mass of air in the atmosphere, typically found in polar regions. This rotating air mass occurs...

A weather front where two air masses meet but neither is strong enough to move the other, often resulting in prolonged periods...

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

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

Thermodynamic changes occurring within a system without any exchange of heat with the surroundings. In the atmosphere, changes...

The upward movement of air caused by a topographic barrier, such as a mountain, which can lead to cloud formation and precipitation.

The term 'cloudy' refers to weather conditions characterized by a significant amount of cloud cover in the sky. This may...

A rapidly rotating column of air extending from a thunderstorm to the ground, capable of causing significant damage.