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 bomb cyclone is a large mid-latitude storm that forms when a storm’s central pressure drops (i.e. “bombs out”), resulting...
A weather front where two air masses meet but neither is strong enough to move the other, often resulting in prolonged periods...
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The mass of air surrounding the earth and bound to it more or less permanently by the earth's gravitational attraction.
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Considerable cloudiness refers to weather conditions where a large portion of the sky is covered with clouds, but some clear...
A line of severe thunderstorms that can form along or ahead of a cold front, often producing strong winds and heavy rain.
A cloud that develops from Cirrus, completely or partially covering the sky, creating a halo effect, thin, sheet-like, milky...