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 term used to identify clouds with a base height below 6,000 feet in the observer's direction. Stratiform clouds consist...

A thermodynamic change process in the system without any exchange of heat or transfer of energy between systems. This process...

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

A body that has the property of absorbing all electromagnetic radiation falling on it, and therefore is the theoretical body...

A measure of how hot it feels when relative humidity is combined with the actual air temperature, often referred to as the...

Any form of water - liquid or solid - that falls from the atmosphere to the Earth's surface, including rain, snow, sleet,...

A line on a weather map connecting points of equal atmospheric pressure, used to identify high and low-pressure systems.

Although it is also used for light winds, it is the general name given to the daily cyclical winds that occur mostly between...

A towering cloud that often reaches great altitudes and is associated with thunderstorms, heavy rain, and sometimes severe...

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