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 weather front formed when a cold front overtakes a warm front, lifting the warm air off the ground and resulting in a mix...
Temperature scale, abbreviated as °C, found by accepting the freezing point of water at one atmospheric pressure as zero...
A thermodynamic change process in the system without any exchange of heat or transfer of energy between systems. This process...
The decrease in temperature with height in an adiabatically rising air parcel (lapse rate). For dry air, this value is 1...
The formation of ice crystals on surfaces when the temperature drops below freezing, typically overnight, causing potential...
Ball lightning appears during thunderstorms, taking the shape of glowing, electric orbs in the sky. It can appear in a variety...
The trapping of heat in the Earth's atmosphere due to greenhouse gases, such as carbon dioxide and methane, which allows...
A drainage wind that flows downhill due to gravity, often associated with cold air descending from elevated regions.
A weather system refers to the movement of warm and cold air across the globe, usually in a recurring pattern. Systems can...
The horizontal transport of any feature within the atmosphere due to the movement of air (wind). This includes phenomena...