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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

Considerable cloudiness refers to weather conditions where a large portion of the sky is covered with clouds, but some clear...

An anvil is a cloud mostly composed of ice particles. Otherwise known as a cumulonimbus cloud, an anvil has reached the stratospheric...

A condition in which the stratification of the atmosphere depends on both air temperature and pressure, and where surfaces...

A thin, white cloud layer that is intertwined or separate, arranged in regular order, and does not cast a shadow.

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

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

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

A sudden and rapid flow of snow masses accumulated on the slopes of mountainous areas under the influence of gravity or a...

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...