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

An instrument for measuring atmospheric pressure.

Confluence refers to the area where two or more air streams or bodies of water meet and combine. In meteorology, it often...

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

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

A measure of how hot it feels when relative humidity is combined with the actual air temperature, often referred to as the...

An instrument that continuously records atmospheric pressure over time. It uses a barometer to measure pressure and creates...

The branch of science dealing with the laws of motion of air or other gases.

A storm characterized by the presence of lightning and its acoustic effect on the Earth's atmosphere known as thunder.

Jet streams are strong, fast-flowing air currents in the upper levels of the atmosphere. They form when warm air masses meet...

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