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 type of cloud consisting mostly of small particles such as ice particles.
Nor'easter is a meteorological event commonly observed in the Northeastern United States and typically occurs during the...
A periodic cooling of sea surface temperatures in the central and eastern Pacific Ocean, often leading to altered global...
The process by which a solid changes directly into a gas without first becoming a liquid, such as ice turning into water...
Confluence refers to the area where two or more air streams or bodies of water meet and combine. In meteorology, it often...
The percentage of water vapor in the air relative to the maximum amount of water vapor the air can hold at a given temperature.
A polar vortex is a circulating mass of air in the atmosphere, typically found in polar regions. This rotating air mass occurs...
Thermodynamic changes occurring within a system without any exchange of heat with the surroundings. In the atmosphere, changes...
Weather conditions are the components that comprise the state of the atmosphere. The six main weather conditions are temperature,...