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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 line of severe thunderstorms that can form along or ahead of a cold front, often producing strong winds and heavy rain.

A mass of very cold, dry air that mostly originates over the Arctic Ocean.

Air laden with sand and dust, common in areas devoid of permanent vegetation, especially deserts.

A weather front where two air masses meet but neither is strong enough to move the other, often resulting in prolonged periods...

Conduction is the transfer of heat or electricity through a material without the material itself moving. This occurs when...

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

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

The term used for turbulence occurring in the absence of clouds or cloud-like elements in the visible area. It is often observed...

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

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