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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

A type of low-altitude cloud that forms in uniform layers, often covering the entire sky and producing overcast conditions.

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

The mass of air surrounding the earth and bound to it more or less permanently by the earth's gravitational attraction.

The term 'cloudy' refers to weather conditions characterized by a significant amount of cloud cover in the sky. This may...

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

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

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

Convection is the vertical movement of air caused by temperature differences, where warm air rises and cool air sinks. It...

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