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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A polar vortex is a circulating mass of air in the atmosphere, typically found in polar regions. This rotating air mass occurs...
A cold front is the leading edge of a cold air mass that replaces a warmer air mass. It is typically associated with sudden...
A prefix used in cloud nomenclature to describe middle-altitude clouds that form between 6,500 and 20,000 feet, such as altostratus...
Frozen drizzle is a dangerous type of frozen rain. It’s a light rain that falls in very fine drops, which freezes on contact...
A strong wind typically ranging from 34 to 40 knots (39 to 46 miles per hour) and often associated with rough seas and stormy...
Precipitation in the form of small balls or lumps of ice that form in thunderstorm updrafts and fall to the ground.
Jet streams are strong, fast-flowing air currents in the upper levels of the atmosphere. They form when warm air masses meet...
The term used for semi-stationary high-pressure centers such as the Azores and North Pacific Highs, which occur in the narrow...
The reflectance rate of a surface, indicating the amount of electromagnetic radiation reflected from the surface. It depends...
A long, narrow region in the atmosphere that transport water vapor, like a river in the sky.