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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The decrease in temperature with height in an adiabatically rising air parcel (lapse rate). For dry air, this value is 1...
A deviation from the normal or expected value in atmospheric or climatic conditions, often used in meteorology to identify...
A tropical cyclone, also called a hurricane, is a severe tropical storm with wind speeds in excess of 74 mph. Known as a...
An instrument used to measure the speed, force, and sometimes the direction of the wind. It can be cup or pressure tube anemometers....
Large, fluffy white clouds with flat bases, typically indicating fair weather, though they can develop into storm clouds...
A continental air mass is a large body of air that forms over land, characterized by dry conditions due to the lack of moisture...
A middle cloud type within the B family in the international cloud classification. These clouds consist of water droplets...
An anvil is a cloud mostly composed of ice particles. Otherwise known as a cumulonimbus cloud, an anvil has reached the stratospheric...
A fixed potential temperature line on adiabats, or the process of thermodynamic changes within a system without any exchange...
An instrument for measuring atmospheric pressure.