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 very cold high pressure that originates over the Arctic Ocean.
The percentage of water vapor in the air relative to the maximum amount of water vapor the air can hold at a given temperature.
Ball lightning appears during thunderstorms, taking the shape of glowing, electric orbs in the sky. It can appear in a variety...
The formation of ice crystals on surfaces when the temperature drops below freezing, typically overnight, causing potential...
Meteorology is the scientific study of the atmosphere and weather processes. It involves observing, analyzing, and forecasting...
A cloud of irregular appearance, composed of irregular cloud fragments.
A line of severe thunderstorms that can form along or ahead of a cold front, often producing strong winds and heavy rain.
The large-scale movement of air that distributes heat and moisture around the Earth, influencing weather patterns and climatic...
Occurs when centers of high pressure and/or low pressure set up over a region in such a way that they prevent other weather...
An instrument for measuring atmospheric pressure.