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 cloud that develops from Cirrus, completely or partially covering the sky, creating a halo effect, thin, sheet-like, milky...
Snow that rises to 8 feet or higher.
A weather front where two air masses meet but neither is strong enough to move the other, often resulting in prolonged periods...
The formation of fog when warm and moist air passes over a cool or cold surface or, conversely, when cold air passes over...
The term used for turbulence occurring in the absence of clouds or cloud-like elements in the visible area. It is often observed...
Observation of the sky from the observer's location where there are no clouds, and there is no obstruction to visibility....
A weather front formed when a cold front overtakes a warm front, lifting the warm air off the ground and resulting in a mix...
Any form of water - liquid or solid - that falls from the atmosphere to the Earth's surface, including rain, snow, sleet,...
A prefix used in cloud nomenclature to describe middle-altitude clouds that form between 6,500 and 20,000 feet, such as altostratus...
Frozen drizzle is a dangerous type of frozen rain. It’s a light rain that falls in very fine drops, which freezes on contact...