Dark blue cloudy sky

What is Squall Line?

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

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Glossary

A continental air mass is a large body of air that forms over land, characterized by dry conditions due to the lack of moisture...

Particles such as pollen, grass seeds, or dust in the air that cause allergies and are transported by winds.

An instrument used to measure the speed, force, and sometimes the direction of the wind. It can be cup or pressure tube anemometers....

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

The jet stream forming the boundary between tropical air and sub-tropical air, characterized by isothermal compression and...

The process by which a solid changes directly into a gas without first becoming a liquid, such as ice turning into water...

A term used to identify clouds with a base height below 6,000 feet in the observer's direction. Stratiform clouds consist...

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

A weather front formed when a cold front overtakes a warm front, lifting the warm air off the ground and resulting in a mix...

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