Dark blue cloudy sky

What is Hail?

Precipitation in the form of small balls or lumps of ice that form in thunderstorm updrafts and fall to the ground.

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Glossary

A term used to identify clouds with a base height below 6,000 feet in the observer's direction. Stratiform clouds consist...

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

A condition in which the stratification of the atmosphere depends on both air temperature and pressure, and where surfaces...

A thermodynamic change process in the system without any exchange of heat or transfer of energy between systems. This process...

A cloud of irregular appearance, composed of irregular cloud fragments.

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

CONQ is a meteorological abbreviation for significant convection observed in a specific area, often indicating unstable atmospheric...

A drainage wind that flows downhill due to gravity, often associated with cold air descending from elevated regions.

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

In a severe storm, with a swirling motion in its left rear quadrant, a vertically rotating column of air, often seen with...