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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The horizontal transport of any feature within the atmosphere due to the movement of air (wind). This includes phenomena...
The names given to the winds blowing from the four cardinal directions (north, east, south, and west - N, E, S, W) on a compass.
A bomb cyclone is a large mid-latitude storm that forms when a storm’s central pressure drops (i.e. “bombs out”), resulting...
Air laden with sand and dust, common in areas devoid of permanent vegetation, especially deserts.
Nimbostratus clouds are thick, dark, gray clouds associated with rainy and gloomy days that block the Sun. These clouds,...
Considerable cloudiness refers to weather conditions where a large portion of the sky is covered with clouds, but some clear...
A small, intense downdraft that produces damaging winds at the surface, typically lasting a few minutes and often associated...
The decrease in temperature with height in an adiabatically rising air parcel (lapse rate). For dry air, this value is 1...
A fixed potential temperature line on adiabats, or the process of thermodynamic changes within a system without any exchange...
The temperature at which air becomes saturated with moisture and water vapor begins to condense into liquid form, leading...