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

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

The horizontal transport of any feature within the atmosphere due to the movement of air (wind). This includes phenomena...

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

A line of severe thunderstorms that can form along or ahead of a cold front, often producing strong winds and heavy rain.

Ice forms on the surface of highways in a very thin layer that is difficult to distinguish from the color of the asphalt...

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 measure of the water vapor or moisture content in the air, expressed as the mass of water vapor per unit volume of air....

An instrument that continuously records atmospheric pressure over time. It uses a barometer to measure pressure and creates...

An anvil is a cloud mostly composed of ice particles. Otherwise known as a cumulonimbus cloud, an anvil has reached the stratospheric...

A blizzard is a storm that lasts 3 hours or more, with persistent winds/frequent gusts of 35 mph or more along with significant...