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 prefix used in cloud nomenclature to describe middle-altitude clouds that form between 6,500 and 20,000 feet, such as altostratus...

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 sudden and rapid flow of snow masses accumulated on the slopes of mountainous areas under the influence of gravity or a...

An instrument for measuring atmospheric pressure.

A line on a weather map connecting points of equal atmospheric pressure, used to identify high and low-pressure systems.

Occurs when centers of high pressure and/or low pressure set up over a region in such a way that they prevent other weather...

The measure of the water vapor or moisture content in the air, expressed as the mass of water vapor per unit volume of air....

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

A middle cloud type within the B family in the international cloud classification. These are shaded clouds that can be white...

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