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 cloud of irregular appearance, composed of irregular cloud fragments.

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

The decrease in temperature with height in an adiabatically rising air parcel (lapse rate). For dry air, this value is 1...

A type of cloud consisting mostly of small particles such as ice particles.

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

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

A closed low, also known as a cut-off low, is a low-pressure system that is entirely isolated from the main atmospheric circulation...

The situation where there is no advection because the constant pressure surfaces and temperature surfaces in the atmosphere...

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

The amount of water vapor present in the air, which can affect comfort levels and weather conditions.