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.

Glossary

The situation where there is no advection because the constant pressure surfaces and temperature surfaces in the atmosphere...

An instrument for measuring atmospheric pressure.

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

A line on a weather map connecting points of equal atmospheric pressure, used to identify high and low-pressure systems.

A rapidly rotating column of air extending from a thunderstorm to the ground, capable of causing significant damage.

CONQ is a meteorological abbreviation for significant convection observed in a specific area, often indicating unstable atmospheric...

Air laden with sand and dust, common in areas devoid of permanent vegetation, especially deserts.

Ball lightning appears during thunderstorms, taking the shape of glowing, electric orbs in the sky. It can appear in a variety...

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

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

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