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 water vapor present in the air, which can affect comfort levels and weather conditions.

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

An elongated area of relatively low atmospheric pressure, often associated with unsettled weather conditions like storms...

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

A long, narrow region in the atmosphere that transport water vapor, like a river in the sky.

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

A drainage wind that flows downhill due to gravity, often associated with cold air descending from elevated regions.

A sudden electrostatic discharge during a thunderstorm between electrically charged regions of a cloud, between clouds, or...

A periodic cooling of sea surface temperatures in the central and eastern Pacific Ocean, often leading to altered global...

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