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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

An elongated area of relatively low atmospheric pressure, often associated with unsettled weather conditions like storms...

The temperature at which air becomes saturated with moisture and water vapor begins to condense into liquid form, leading...

An image on the weather radar that is convex to the direction of movement and resembles an arc shape, caused by mesoscale...

A line on a weather map connecting points of equal atmospheric pressure, used to identify high and low-pressure systems.

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

A towering cloud that often reaches great altitudes and is associated with thunderstorms, heavy rain, and sometimes severe...

Confluence refers to the area where two or more air streams or bodies of water meet and combine. In meteorology, it often...

A narrow band of strong winds in the upper atmosphere, typically flowing from west to east and influencing weather patterns.

A closed low, also known as a cut-off low, is a low-pressure system that is entirely isolated from the main atmospheric circulation...

Large, fluffy white clouds with flat bases, typically indicating fair weather, though they can develop into storm clouds...