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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 branch of science dealing with the laws of motion of air or other gases.

A condition in which the stratification of the atmosphere depends on both air temperature and pressure, and where surfaces...

Observation of the sky from the observer's location where there are no clouds, and there is no obstruction to visibility....

Nimbostratus clouds are thick, dark, gray clouds associated with rainy and gloomy days that block the Sun. These clouds,...

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

A measurement determined by the wave lengths and sea conditions caused by the effect of wind, and by the movement of tree...

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

The horizontal transport of any feature within the atmosphere due to the movement of air (wind). This includes phenomena...

Weather is the day-to-day meteorological conditions that happen in our atmosphere. Weather can change within minutes, which...

The process by which a solid changes directly into a gas without first becoming a liquid, such as ice turning into water...