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

Condensation pressure deficit refers to the difference between the actual vapor pressure and the saturation vapor pressure...

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

A periodic warming of sea surface temperatures in the central and eastern Pacific Ocean, significantly influencing global...

A cold core high is a high-pressure system with cold air at its center. These systems are typically associated with clear...

Coastal flooding occurs when water from the ocean, sea, or large lakes inundates land areas along the coast, usually due...

A thick cloud of tiny water droplets suspended in the atmosphere near the Earth's surface, significantly reducing visibility.

A weather warning means that a weather hazard is occurring, imminent, or likely. In other words, severe weather is happening...

A low-pressure area with converging winds, rotating counterclockwise in the Northern Hemisphere and clockwise in the Southern...

A weather system refers to the movement of warm and cold air across the globe, usually in a recurring pattern. Systems can...

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