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What is Advection?

The horizontal transport of any feature within the atmosphere due to the movement of air (wind). This includes phenomena such as temperature and humidity advection. In simple terms, it is the horizontal movement of heat from one region to another.

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Glossary

Precipitation in the form of small balls or lumps of ice that form in thunderstorm updrafts and fall to the ground.

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

A prefix used in cloud nomenclature to describe middle-altitude clouds that form between 6,500 and 20,000 feet, such as altostratus...

Nimbostratus clouds are thick, dark, gray clouds associated with rainy and gloomy days that block the Sun. These clouds,...

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

An elongated area of relatively low atmospheric pressure, often associated with unsettled weather conditions like storms...

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

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

Confluence refers to the area where two or more air streams or bodies of water meet and combine. In meteorology, it often...