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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A rapidly rotating column of air extending from a thunderstorm to the ground, capable of causing significant damage.
A type of low-altitude cloud that forms in uniform layers, often covering the entire sky and producing overcast conditions.
A thick cloud of tiny water droplets suspended in the atmosphere near the Earth's surface, significantly reducing visibility.
The formation of fog when warm and moist air passes over a cool or cold surface or, conversely, when cold air passes over...
A narrow band of strong winds in the upper atmosphere, typically flowing from west to east and influencing weather patterns.
A low-pressure area with converging winds, rotating counterclockwise in the Northern Hemisphere and clockwise in the Southern...
A long, narrow region in the atmosphere that transport water vapor, like a river in the sky.
A thermodynamic change process in the system without any exchange of heat or transfer of energy between systems. This process...
Confluence refers to the area where two or more air streams or bodies of water meet and combine. In meteorology, it often...
A closed low, also known as a cut-off low, is a low-pressure system that is entirely isolated from the main atmospheric circulation...