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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An instrument for measuring atmospheric pressure.
The horizontal transport of any feature within the atmosphere due to the movement of air (wind). This includes phenomena...
The situation where there is no advection because the constant pressure surfaces and temperature surfaces in the atmosphere...
The process by which a solid changes directly into a gas without first becoming a liquid, such as ice turning into water...
Ice forms on the surface of highways in a very thin layer that is difficult to distinguish from the color of the asphalt...
Observation of the sky from the observer's location where there are no clouds, and there is no obstruction to visibility....
A prefix used in cloud nomenclature to describe middle-altitude clouds that form between 6,500 and 20,000 feet, such as altostratus...
The temperature at which air becomes saturated with moisture and water vapor begins to condense into liquid form, leading...
Precipitation in the form of small balls or lumps of ice that form in thunderstorm updrafts and fall to the ground.
Jet streams are strong, fast-flowing air currents in the upper levels of the atmosphere. They form when warm air masses meet...