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

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

The large-scale movement of air that distributes heat and moisture around the Earth, influencing weather patterns and climatic...

Ice forms on the surface of highways in a very thin layer that is difficult to distinguish from the color of the asphalt...

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

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

The amount of radiation, heat, or light passing through or flowing from a unit area of a surface.

A scale for estimating wind speed based on observed conditions of the sea or land. It ranges from 0 (calm) to 12 (hurricane)...

A strong, downward wind caused by a localized column of air sinking rapidly, often resulting in damage similar to that caused...

A distinct layer in a body of water where the temperature changes rapidly with depth, separating warmer surface water from...