What is Heat Index?
A measure of how hot it feels when relative humidity is combined with the actual air temperature, often referred to as the 'apparent temperature.'
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A mass of very cold, dry air that mostly originates over the Arctic Ocean.
The horizontal transport of any feature within the atmosphere due to the movement of air (wind). This includes phenomena...
An image on the weather radar that is convex to the direction of movement and resembles an arc shape, caused by mesoscale...
Local winds that blow from slopes to peaks as a result of the heating of the top slopes without being affected by general...
A prefix used in cloud nomenclature to describe middle-altitude clouds that form between 6,500 and 20,000 feet, such as altostratus...
The lowest level of a given cloud or cloud layer in the atmosphere, relative to the observer's position above the ground.
A body that has the property of absorbing all electromagnetic radiation falling on it, and therefore is the theoretical body...
An anvil is a cloud mostly composed of ice particles. Otherwise known as a cumulonimbus cloud, an anvil has reached the stratospheric...
A closed low, also known as a cut-off low, is a low-pressure system that is entirely isolated from the main atmospheric circulation...
The decrease in temperature with height in an adiabatically rising air parcel (lapse rate). For dry air, this value is 1...