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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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Glossary

The amount of radiation, heat, or light passing through or flowing from a unit area of a surface.

Meteorology is the scientific study of the atmosphere and weather processes. It involves observing, analyzing, and forecasting...

A low-pressure area with converging winds, rotating counterclockwise in the Northern Hemisphere and clockwise in the Southern...

The names given to the winds blowing from the four cardinal directions (north, east, south, and west - N, E, S, W) on a compass.

The upward movement of air caused by a topographic barrier, such as a mountain, which can lead to cloud formation and precipitation.

Thermodynamic changes occurring within a system without any exchange of heat with the surroundings. In the atmosphere, changes...

A term used to identify clouds with a base height below 6,000 feet in the observer's direction. Stratiform clouds consist...

A sudden and rapid flow of snow masses accumulated on the slopes of mountainous areas under the influence of gravity or a...

An instrument used to measure the speed, force, and sometimes the direction of the wind. It can be cup or pressure tube anemometers....

The lowest level of a given cloud or cloud layer in the atmosphere, relative to the observer's position above the ground.