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 measure of the water vapor or moisture content in the air, expressed as the mass of water vapor per unit volume of air....
A cold core high is a high-pressure system with cold air at its center. These systems are typically associated with clear...
The heating of the Earth by the sun causes daily changes in both the direction and speed of the wind. During the day, ground...
A cloud that develops from Cirrus, completely or partially covering the sky, creating a halo effect, thin, sheet-like, milky...
A measure of how hot it feels when relative humidity is combined with the actual air temperature, often referred to as the...
Ball lightning appears during thunderstorms, taking the shape of glowing, electric orbs in the sky. It can appear in a variety...
The lowest level of a given cloud or cloud layer in the atmosphere, relative to the observer's position above the ground.
A line on a weather map connecting points of equal atmospheric pressure, used to identify high and low-pressure systems.
The amount of water vapor present in the air, which can affect comfort levels and weather conditions.
The expected rate of temperature decrease in an adiabatically rising air parcel when there is no heat exchange with the environment....