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 distinct layer in a body of water where the temperature changes rapidly with depth, separating warmer surface water from...
A strong, downward wind caused by a localized column of air sinking rapidly, often resulting in damage similar to that caused...
A mass of very cold, dry air that mostly originates over the Arctic Ocean.
A very cold high pressure that originates over the Arctic Ocean.
The heating of the Earth by the sun causes daily changes in both the direction and speed of the wind. During the day, ground...
The formation of fog when warm and moist air passes over a cool or cold surface or, conversely, when cold air passes over...
Conduction is the transfer of heat or electricity through a material without the material itself moving. This occurs when...
The term used for turbulence occurring in the absence of clouds or cloud-like elements in the visible area. It is often observed...
Large, fluffy white clouds with flat bases, typically indicating fair weather, though they can develop into storm clouds...
A periodic cooling of sea surface temperatures in the central and eastern Pacific Ocean, often leading to altered global...