What is Hail?

Precipitation in the form of small balls or lumps of ice that form in thunderstorm updrafts and fall to the ground.

Glossary

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

A measurement determined by the wave lengths and sea conditions caused by the effect of wind, and by the movement of tree...

The state of the atmosphere when it contains the maximum amount of water vapor possible at a given temperature and pressure.

Considerable cloudiness refers to weather conditions where a large portion of the sky is covered with clouds, but some clear...

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

The temperature at which air becomes saturated with moisture and water vapor begins to condense into liquid form, leading...

The formation of ice crystals on surfaces when the temperature drops below freezing, typically overnight, causing potential...

Snow that rises to 8 feet or higher.

The reflectance rate of a surface, indicating the amount of electromagnetic radiation reflected from the surface. It depends...

A rapidly rotating column of air extending from a thunderstorm to the ground, capable of causing significant damage.

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