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

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

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

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

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

Condensation pressure deficit refers to the difference between the actual vapor pressure and the saturation vapor pressure...

The expected rate of temperature decrease in an adiabatically rising air parcel when there is no heat exchange with the environment....

Large, fluffy white clouds with flat bases, typically indicating fair weather, though they can develop into storm clouds...

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

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 bomb cyclone is a large mid-latitude storm that forms when a storm’s central pressure drops (i.e. “bombs out”), resulting...