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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Ball lightning appears during thunderstorms, taking the shape of glowing, electric orbs in the sky. It can appear in a variety...
The branch of science dealing with the laws of motion of air or other gases.
An image on the weather radar that is convex to the direction of movement and resembles an arc shape, caused by mesoscale...
A large body of air having similar horizontal temperature and moisture characteristics.
A towering cloud that often reaches great altitudes and is associated with thunderstorms, heavy rain, and sometimes severe...
An instrument used to measure the speed, force, and sometimes the direction of the wind. It can be cup or pressure tube anemometers....
The amount of water vapor present in the air, which can affect comfort levels and weather conditions.
The percentage of water vapor in the air relative to the maximum amount of water vapor the air can hold at a given temperature.
Frozen drizzle is a dangerous type of frozen rain. It’s a light rain that falls in very fine drops, which freezes on contact...
A low-pressure area with converging winds, rotating counterclockwise in the Northern Hemisphere and clockwise in the Southern...