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What is Celsius?

Temperature scale, abbreviated as °C, found by accepting the freezing point of water at one atmospheric pressure as zero and the evaporation point as 100.

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Glossary

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

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

The formation of fog when warm and moist air passes over a cool or cold surface or, conversely, when cold air passes over...

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

A weather system refers to the movement of warm and cold air across the globe, usually in a recurring pattern. Systems can...

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

The decrease in temperature with height in an adiabatically rising air parcel (lapse rate). For dry air, this value is 1...

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 body that has the property of absorbing all electromagnetic radiation falling on it, and therefore is the theoretical body...

A large, organized thunderstorm with a rotating updraft, often producing severe weather such as tornadoes, hail, and heavy...