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

Nor'easter is a meteorological event commonly observed in the Northeastern United States and typically occurs during the...

Confluence refers to the area where two or more air streams or bodies of water meet and combine. In meteorology, it often...

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

Frozen drizzle is a dangerous type of frozen rain. It’s a light rain that falls in very fine drops, which freezes on contact...

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

The amount of water vapor present in the air, which can affect comfort levels and weather conditions.

Observation of the sky from the observer's location where there are no clouds, and there is no obstruction to visibility....

A strong wind typically ranging from 34 to 40 knots (39 to 46 miles per hour) and often associated with rough seas and stormy...

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

Cloud condensation nuclei are tiny particles in the atmosphere, such as dust, salt, or pollutants, that provide surfaces...