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

Ball lightning appears during thunderstorms, taking the shape of glowing, electric orbs in the sky. It can appear in a variety...

The expected rate of temperature decrease in an adiabatically rising air parcel when there is no heat exchange with the environment....

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

Condensation pressure deficit refers to the difference between the actual vapor pressure and the saturation vapor pressure...

Cloud or rain droplets containing pollutants, such as oxides of sulfur and nitrogen, to make them acidic.

The heating of the Earth by the sun causes daily changes in both the direction and speed of the wind. During the day, ground...

Frozen drizzle is a dangerous type of frozen rain. It’s a light rain that falls in very fine drops, which freezes on contact...

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

Conduction is the transfer of heat or electricity through a material without the material itself moving. This occurs when...