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

The large-scale movement of air that distributes heat and moisture around the Earth, influencing weather patterns and climatic...

The percentage of water vapor in the air relative to the maximum amount of water vapor the air can hold at a given temperature.

Occurs when centers of high pressure and/or low pressure set up over a region in such a way that they prevent other weather...

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

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

A very cold high pressure that originates over the Arctic Ocean.

The process by which a solid changes directly into a gas without first becoming a liquid, such as ice turning into water...

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

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