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 cold core high is a high-pressure system with cold air at its center. These systems are typically associated with clear...
A condition in which the stratification of the atmosphere depends on both air temperature and pressure, and where surfaces...
Meteorology is the scientific study of the atmosphere and weather processes. It involves observing, analyzing, and forecasting...
The decrease in temperature with height in an adiabatically rising air parcel (lapse rate). For dry air, this value is 1...
A scale for estimating wind speed based on observed conditions of the sea or land. It ranges from 0 (calm) to 12 (hurricane)...
A measurement determined by the wave lengths and sea conditions caused by the effect of wind, and by the movement of tree...
Snow that rises to 8 feet or higher.
The term used for turbulence occurring in the absence of clouds or cloud-like elements in the visible area. It is often observed...
A polar vortex is a circulating mass of air in the atmosphere, typically found in polar regions. This rotating air mass occurs...
The percentage of water vapor in the air relative to the maximum amount of water vapor the air can hold at a given temperature.