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 amount of radiation, heat, or light passing through or flowing from a unit area of a surface.

A strong wind typically ranging from 34 to 40 knots (39 to 46 miles per hour) and often associated with rough seas and stormy...

A condition in which the stratification of the atmosphere depends on both air temperature and pressure, and where surfaces...

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

The formation of fog when warm and moist air passes over a cool or cold surface or, conversely, when cold air passes over...

Thermodynamic changes occurring within a system without any exchange of heat with the surroundings. In the atmosphere, changes...

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

Perhaps you have come across them, maybe you are seeing them for the first time. These clouds, known as wave clouds, resemble...

The lowest level of a given cloud or cloud layer in the atmosphere, relative to the observer's position above the ground.

In a severe storm, with a swirling motion in its left rear quadrant, a vertically rotating column of air, often seen with...