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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Cloud condensation nuclei are tiny particles in the atmosphere, such as dust, salt, or pollutants, that provide surfaces...
Occurs when centers of high pressure and/or low pressure set up over a region in such a way that they prevent other weather...
A storm characterized by the presence of lightning and its acoustic effect on the Earth's atmosphere known as thunder.
A measurement determined by the wave lengths and sea conditions caused by the effect of wind, and by the movement of tree...
The term used for turbulence occurring in the absence of clouds or cloud-like elements in the visible area. It is often observed...
A scale for estimating wind speed based on observed conditions of the sea or land. It ranges from 0 (calm) to 12 (hurricane)...
A middle cloud type within the B family in the international cloud classification. These clouds consist of water droplets...
A thin, white cloud layer that is intertwined or separate, arranged in regular order, and does not cast a shadow.
A rapidly rotating column of air extending from a thunderstorm to the ground, capable of causing significant damage.
A line on a weather map connecting points of equal atmospheric pressure, used to identify high and low-pressure systems.