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

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

A weather warning means that a weather hazard is occurring, imminent, or likely. In other words, severe weather is happening...

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

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

Weather conditions are the components that comprise the state of the atmosphere. The six main weather conditions are temperature,...

A cloud that develops from Cirrus, completely or partially covering the sky, creating a halo effect, thin, sheet-like, milky...

A cold front is the leading edge of a cold air mass that replaces a warmer air mass. It is typically associated with sudden...

A continental air mass is a large body of air that forms over land, characterized by dry conditions due to the lack of moisture...

The occurrence of storms resulting from the horizontal advection of cold air at high levels or the horizontal advection of...

A distinct layer in a body of water where the temperature changes rapidly with depth, separating warmer surface water from...