Dark blue cloudy sky

What is Clear?

Observation of the sky from the observer's location where there are no clouds, and there is no obstruction to visibility. Clear sky. In meteorology, this term is also used when the cloud cover is less than 1/8 during the day or at the observation hour.

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Glossary

A cloud of irregular appearance, composed of irregular cloud fragments.

A body that has the property of absorbing all electromagnetic radiation falling on it, and therefore is the theoretical body...

A long, narrow region in the atmosphere that transport water vapor, like a river in the sky.

A middle cloud type within the B family in the international cloud classification. These are shaded clouds that can be white...

The term used for turbulence occurring in the absence of clouds or cloud-like elements in the visible area. It is often observed...

A mass of very cold, dry air that mostly originates over the Arctic Ocean.

A weather front formed when a cold front overtakes a warm front, lifting the warm air off the ground and resulting in a mix...

An image on the weather radar that is convex to the direction of movement and resembles an arc shape, caused by mesoscale...

Weather conditions are the components that comprise the state of the atmosphere. The six main weather conditions are temperature,...

Any form of water - liquid or solid - that falls from the atmosphere to the Earth's surface, including rain, snow, sleet,...