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 large body of air having similar horizontal temperature and moisture characteristics.
The jet stream forming the boundary between tropical air and sub-tropical air, characterized by isothermal compression and...
The decrease in temperature with height in an adiabatically rising air parcel (lapse rate). For dry air, this value is 1...
An instrument used to measure the speed, force, and sometimes the direction of the wind. It can be cup or pressure tube anemometers....
A cloud of irregular appearance, composed of irregular cloud fragments.
A tropical cyclone with sustained winds of at least 74 miles per hour, characterized by a central eye, strong winds, and...
Ice forms on the surface of highways in a very thin layer that is difficult to distinguish from the color of the asphalt...
The large-scale movement of air that distributes heat and moisture around the Earth, influencing weather patterns and climatic...
Air laden with sand and dust, common in areas devoid of permanent vegetation, especially deserts.
The names given to the winds blowing from the four cardinal directions (north, east, south, and west - N, E, S, W) on a compass.