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 tropical cyclone, also called a hurricane, is a severe tropical storm with wind speeds in excess of 74 mph. Known as a...
A thick cloud of tiny water droplets suspended in the atmosphere near the Earth's surface, significantly reducing visibility.
The measure of the water vapor or moisture content in the air, expressed as the mass of water vapor per unit volume of air....
Jet streams are strong, fast-flowing air currents in the upper levels of the atmosphere. They form when warm air masses meet...
A distinct layer in a body of water where the temperature changes rapidly with depth, separating warmer surface water from...
A long, narrow region in the atmosphere that transport water vapor, like a river in the sky.
The term used for turbulence occurring in the absence of clouds or cloud-like elements in the visible area. It is often observed...
A towering cloud that often reaches great altitudes and is associated with thunderstorms, heavy rain, and sometimes severe...
A line on a weather map connecting points of equal atmospheric pressure, used to identify high and low-pressure systems.
The temperature at which air becomes saturated with moisture and water vapor begins to condense into liquid form, leading...