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What is Weather System?

A weather system refers to the movement of warm and cold air across the globe, usually in a recurring pattern. Systems can be comprised of low pressure, which is associated with inclement weather, and high pressure, which typically brings more stable, pleasant weather.

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Glossary

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

A polar vortex is a circulating mass of air in the atmosphere, typically found in polar regions. This rotating air mass occurs...

The occurrence of storms resulting from the horizontal advection of cold air at high levels or the horizontal advection of...

An image on the weather radar that is convex to the direction of movement and resembles an arc shape, caused by mesoscale...

Frozen drizzle is a dangerous type of frozen rain. It’s a light rain that falls in very fine drops, which freezes on contact...

The heating of the Earth by the sun causes daily changes in both the direction and speed of the wind. During the day, ground...

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

A deviation from the normal or expected value in atmospheric or climatic conditions, often used in meteorology to identify...

A term used to identify clouds with a base height below 6,000 feet in the observer's direction. Stratiform clouds consist...

A measure of how hot it feels when relative humidity is combined with the actual air temperature, often referred to as the...