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

A thin, white cloud layer that is intertwined or separate, arranged in regular order, and does not cast a shadow.

Observation of the sky from the observer's location where there are no clouds, and there is no obstruction to visibility....

Conduction is the transfer of heat or electricity through a material without the material itself moving. This occurs when...

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

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

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

Weather conditions are the components that comprise the state of the atmosphere. The six main weather conditions are temperature,...

A closed low, also known as a cut-off low, is a low-pressure system that is entirely isolated from the main atmospheric circulation...

The reflectance rate of a surface, indicating the amount of electromagnetic radiation reflected from the surface. It depends...