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What is Cold Front?

A cold front is the leading edge of a cold air mass that replaces a warmer air mass. It is typically associated with sudden drops in temperature, thunderstorms, and heavy rain as the colder air forces the warmer air upward.

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Glossary

The mass of air surrounding the earth and bound to it more or less permanently by the earth's gravitational attraction.

The term used for semi-stationary high-pressure centers such as the Azores and North Pacific Highs, which occur in the narrow...

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

A cold core high is a high-pressure system with cold air at its center. These systems are typically associated with clear...

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

Temperature scale, abbreviated as °C, found by accepting the freezing point of water at one atmospheric pressure as zero...

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

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

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

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