What is Polar Vortex?
A polar vortex is a circulating mass of air in the atmosphere, typically found in polar regions. This rotating air mass occurs in both the stratosphere and troposphere at high latitudes, close to the poles. It is formed by the rotation of cold, dense air.
Glossary
A weather warning means that a weather hazard is occurring, imminent, or likely. In other words, severe weather is happening...
A towering cloud that often reaches great altitudes and is associated with thunderstorms, heavy rain, and sometimes severe...
A sudden and rapid flow of snow masses accumulated on the slopes of mountainous areas under the influence of gravity or a...
The mass of air surrounding the earth and bound to it more or less permanently by the earth's gravitational attraction.
A tropical cyclone with sustained winds of at least 74 miles per hour, characterized by a central eye, strong winds, and...
The amount of water vapor present in the air, which can affect comfort levels and weather conditions.
The temperature at which air becomes saturated with moisture and water vapor begins to condense into liquid form, leading...
Cloud or rain droplets containing pollutants, such as oxides of sulfur and nitrogen, to make them acidic.
A sudden electrostatic discharge during a thunderstorm between electrically charged regions of a cloud, between clouds, or...
A tropical cyclone, also called a hurricane, is a severe tropical storm with wind speeds in excess of 74 mph. Known as a...
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