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

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

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

A middle cloud type within the B family in the international cloud classification. These clouds consist of water droplets...

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

Conduction is the transfer of heat or electricity through a material without the material itself moving. This occurs when...

A blizzard is a storm that lasts 3 hours or more, with persistent winds/frequent gusts of 35 mph or more along with significant...

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

The reflectance rate of a surface, indicating the amount of electromagnetic radiation reflected from the surface. It depends...

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

The term used for semi-stationary high-pressure centers such as the Azores and North Pacific Highs, which occur in the narrow...