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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

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 warning means that a weather hazard is occurring, imminent, or likely. In other words, severe weather is happening...

The percentage of water vapor in the air relative to the maximum amount of water vapor the air can hold at a given temperature.

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

A mass of very cold, dry air that mostly originates over the Arctic Ocean.

A distinct layer in a body of water where the temperature changes rapidly with depth, separating warmer surface water from...

Precipitation in the form of small balls or lumps of ice that form in thunderstorm updrafts and fall to the ground.

A small, intense downdraft that produces damaging winds at the surface, typically lasting a few minutes and often associated...

A weather watch means there is a risk of weather hazards in the near future, which could pose a threat to life/property....

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