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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

A weather system refers to the movement of warm and cold air across the globe, usually in a recurring pattern. Systems can...

A prefix used in cloud nomenclature to describe middle-altitude clouds that form between 6,500 and 20,000 feet, such as altostratus...

The large-scale movement of air that distributes heat and moisture around the Earth, influencing weather patterns and climatic...

Considerable cloudiness refers to weather conditions where a large portion of the sky is covered with clouds, but some clear...

The belt between 50-70 ° N and S latitudes in the Northern and Southern Hemispheres, adjacent to the Polar Region. Although...

Indicates the amount of water the soil can absorb/retain through percolation. This capacity is around 7% in sandy soil and...

The reflectance rate of a surface, indicating the amount of electromagnetic radiation reflected from the surface. It depends...

The state of the atmosphere when it contains the maximum amount of water vapor possible at a given temperature and pressure.

A cold front is the leading edge of a cold air mass that replaces a warmer air mass. It is typically associated with sudden...

In a severe storm, with a swirling motion in its left rear quadrant, a vertically rotating column of air, often seen with...