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 cold core high is a high-pressure system with cold air at its center. These systems are typically associated with clear...
The lowest level of a given cloud or cloud layer in the atmosphere, relative to the observer's position above the ground.
A small, intense downdraft that produces damaging winds at the surface, typically lasting a few minutes and often associated...
A line on a weather map connecting points of equal atmospheric pressure, used to identify high and low-pressure systems.
A polar vortex is a circulating mass of air in the atmosphere, typically found in polar regions. This rotating air mass occurs...
Cloud condensation nuclei are tiny particles in the atmosphere, such as dust, salt, or pollutants, that provide surfaces...
The horizontal transport of any feature within the atmosphere due to the movement of air (wind). This includes phenomena...
The term 'cloudy' refers to weather conditions characterized by a significant amount of cloud cover in the sky. This may...
A body that has the property of absorbing all electromagnetic radiation falling on it, and therefore is the theoretical body...
Considerable cloudiness refers to weather conditions where a large portion of the sky is covered with clouds, but some clear...