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 prefix used in cloud nomenclature to describe middle-altitude clouds that form between 6,500 and 20,000 feet, such as altostratus...

A very cold high pressure that originates over the Arctic Ocean.

Nor'easter is a meteorological event commonly observed in the Northeastern United States and typically occurs during the...

Air laden with sand and dust, common in areas devoid of permanent vegetation, especially deserts.

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

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

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 middle cloud type within the B family in the international cloud classification. These clouds consist of water droplets...

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

Cloud condensation nuclei are tiny particles in the atmosphere, such as dust, salt, or pollutants, that provide surfaces...