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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 large, organized thunderstorm with a rotating updraft, often producing severe weather such as tornadoes, hail, and heavy...

The situation where there is no advection because the constant pressure surfaces and temperature surfaces in the atmosphere...

A tropical cyclone with sustained winds of at least 74 miles per hour, characterized by a central eye, strong winds, and...

A sudden electrostatic discharge during a thunderstorm between electrically charged regions of a cloud, between clouds, or...

The trapping of heat in the Earth's atmosphere due to greenhouse gases, such as carbon dioxide and methane, which allows...

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

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

A line on a weather map connecting points of equal atmospheric pressure, used to identify high and low-pressure systems.

The names given to the winds blowing from the four cardinal directions (north, east, south, and west - N, E, S, W) on a compass.

The jet stream forming the boundary between tropical air and sub-tropical air, characterized by isothermal compression and...