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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 formation of fog when warm and moist air passes over a cool or cold surface or, conversely, when cold air passes over...

A type of low-altitude cloud that forms in uniform layers, often covering the entire sky and producing overcast conditions.

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

A periodic cooling of sea surface temperatures in the central and eastern Pacific Ocean, often leading to altered global...

A cloud that develops from Cirrus, completely or partially covering the sky, creating a halo effect, thin, sheet-like, milky...

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

A continental air mass is a large body of air that forms over land, characterized by dry conditions due to the lack of moisture...

A blizzard is a storm that lasts 3 hours or more, with persistent winds/frequent gusts of 35 mph or more along with significant...

A weather front formed when a cold front overtakes a warm front, lifting the warm air off the ground and resulting in a mix...

A tropical cyclone, also called a hurricane, is a severe tropical storm with wind speeds in excess of 74 mph. Known as a...