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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

The temperature at which air becomes saturated with moisture and water vapor begins to condense into liquid form, leading...

A long, narrow region in the atmosphere that transport water vapor, like a river in the sky.

The process by which a solid changes directly into a gas without first becoming a liquid, such as ice turning into water...

The expected rate of temperature decrease in an adiabatically rising air parcel when there is no heat exchange with the environment....

A small, intense downdraft that produces damaging winds at the surface, typically lasting a few minutes and often associated...

An instrument used to measure the speed, force, and sometimes the direction of the wind. It can be cup or pressure tube anemometers....

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

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

Jet streams are strong, fast-flowing air currents in the upper levels of the atmosphere. They form when warm air masses meet...

A middle cloud type within the B family in the international cloud classification. These are shaded clouds that can be white...