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 prefix used in cloud nomenclature to describe middle-altitude clouds that form between 6,500 and 20,000 feet, such as altostratus...
The term used for turbulence occurring in the absence of clouds or cloud-like elements in the visible area. It is often observed...
A strong, downward wind caused by a localized column of air sinking rapidly, often resulting in damage similar to that caused...
A very cold high pressure that originates over the Arctic Ocean.
A closed low, also known as a cut-off low, is a low-pressure system that is entirely isolated from the main atmospheric circulation...
A large body of air having similar horizontal temperature and moisture characteristics.
A thick cloud of tiny water droplets suspended in the atmosphere near the Earth's surface, significantly reducing visibility.
Ball lightning appears during thunderstorms, taking the shape of glowing, electric orbs in the sky. It can appear in a variety...
The horizontal transport of any feature within the atmosphere due to the movement of air (wind). This includes phenomena...
A large, organized thunderstorm with a rotating updraft, often producing severe weather such as tornadoes, hail, and heavy...