Dark blue cloudy sky

What is Ceiling?

The lowest level of a given cloud or cloud layer in the atmosphere, relative to the observer's position above the ground.

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Glossary

Precipitation in the form of small balls or lumps of ice that form in thunderstorm updrafts and fall to the ground.

A very cold high pressure that originates over the Arctic Ocean.

Local winds that blow from slopes to peaks as a result of the heating of the top slopes without being affected by general...

Condensation is the process by which water vapor in the air cools and changes into liquid water. This process is crucial...

Although it is also used for light winds, it is the general name given to the daily cyclical winds that occur mostly between...

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

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

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

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

Cloud or rain droplets containing pollutants, such as oxides of sulfur and nitrogen, to make them acidic.