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 storm characterized by the presence of lightning and its acoustic effect on the Earth's atmosphere known as thunder.
Although it is also used for light winds, it is the general name given to the daily cyclical winds that occur mostly between...
The expected rate of temperature decrease in an adiabatically rising air parcel when there is no heat exchange with the environment....
A large, organized thunderstorm with a rotating updraft, often producing severe weather such as tornadoes, hail, and heavy...
The trapping of heat in the Earth's atmosphere due to greenhouse gases, such as carbon dioxide and methane, which allows...
The amount of water vapor present in the air, which can affect comfort levels and weather conditions.
A weather system refers to the movement of warm and cold air across the globe, usually in a recurring pattern. Systems can...
The measure of the water vapor or moisture content in the air, expressed as the mass of water vapor per unit volume of air....
The lowest level of a given cloud or cloud layer in the atmosphere, relative to the observer's position above the ground.
Cloud condensation nuclei are tiny particles in the atmosphere, such as dust, salt, or pollutants, that provide surfaces...