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 closed low, also known as a cut-off low, is a low-pressure system that is entirely isolated from the main atmospheric circulation...
A body that has the property of absorbing all electromagnetic radiation falling on it, and therefore is the theoretical body...
A bomb cyclone is a large mid-latitude storm that forms when a storm’s central pressure drops (i.e. “bombs out”), resulting...
A very cold high pressure that originates over the Arctic Ocean.
The names given to the winds blowing from the four cardinal directions (north, east, south, and west - N, E, S, W) on a compass.
The mass of air surrounding the earth and bound to it more or less permanently by the earth's gravitational attraction.
Large, fluffy white clouds with flat bases, typically indicating fair weather, though they can develop into storm clouds...
Temperature scale, abbreviated as °C, found by accepting the freezing point of water at one atmospheric pressure as zero...
A storm characterized by the presence of lightning and its acoustic effect on the Earth's atmosphere known as thunder.
A type of cloud consisting mostly of small particles such as ice particles.