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

Weather is the day-to-day meteorological conditions that happen in our atmosphere. Weather can change within minutes, which...

The amount of radiation, heat, or light passing through or flowing from a unit area of a surface.

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

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

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

Cloud or rain droplets containing pollutants, such as oxides of sulfur and nitrogen, to make them acidic.

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

Ball lightning appears during thunderstorms, taking the shape of glowing, electric orbs in the sky. It can appear in a variety...

In a severe storm, with a swirling motion in its left rear quadrant, a vertically rotating column of air, often seen with...

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