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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

Ice forms on the surface of highways in a very thin layer that is difficult to distinguish from the color of the asphalt...

An instrument that continuously records atmospheric pressure over time. It uses a barometer to measure pressure and creates...

The expected rate of temperature decrease in an adiabatically rising air parcel when there is no heat exchange with the environment....

An instrument for measuring atmospheric pressure.

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

A small, intense downdraft that produces damaging winds at the surface, typically lasting a few minutes and often associated...

A tropical cyclone with sustained winds of at least 74 miles per hour, characterized by a central eye, strong winds, and...

The percentage of water vapor in the air relative to the maximum amount of water vapor the air can hold at a given temperature.

The term used for semi-stationary high-pressure centers such as the Azores and North Pacific Highs, which occur in the narrow...

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