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What is Warning?

A weather warning means that a weather hazard is occurring, imminent, or likely. In other words, severe weather is happening now, developing as we speak, and is minutes away. This weather hazard poses a threat to life and property.

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Glossary

A fixed potential temperature line on adiabats, or the process of thermodynamic changes within a system without any exchange...

A narrow band of strong winds in the upper atmosphere, typically flowing from west to east and influencing weather patterns.

Thermodynamic changes occurring within a system without any exchange of heat with the surroundings. In the atmosphere, changes...

A continental air mass is a large body of air that forms over land, characterized by dry conditions due to the lack of moisture...

The measure of the water vapor or moisture content in the air, expressed as the mass of water vapor per unit volume of air....

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

The term used for turbulence occurring in the absence of clouds or cloud-like elements in the visible area. It is often observed...

A low-pressure area with converging winds, rotating counterclockwise in the Northern Hemisphere and clockwise in the Southern...

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

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