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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 fixed potential temperature line on adiabats, or the process of thermodynamic changes within a system without any exchange...

The measure of the water vapor or moisture content in the air, expressed as the mass of water vapor per unit volume of air....

A deviation from the normal or expected value in atmospheric or climatic conditions, often used in meteorology to identify...

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

A thermodynamic change process in the system without any exchange of heat or transfer of energy between systems. This process...

The trapping of heat in the Earth's atmosphere due to greenhouse gases, such as carbon dioxide and methane, which allows...

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

Any form of water - liquid or solid - that falls from the atmosphere to the Earth's surface, including rain, snow, sleet,...

Local winds that blow from slopes to peaks as a result of the heating of the top slopes without being affected by general...

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