What is Arctic Air?

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

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

Confluence refers to the area where two or more air streams or bodies of water meet and combine. In meteorology, it often...

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

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

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

A storm characterized by the presence of lightning and its acoustic effect on the Earth's atmosphere known as thunder.

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

A prefix used in cloud nomenclature to describe middle-altitude clouds that form between 6,500 and 20,000 feet, such as altostratus...

Cloud condensation nuclei are tiny particles in the atmosphere, such as dust, salt, or pollutants, that provide surfaces...