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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 sudden electrostatic discharge during a thunderstorm between electrically charged regions of a cloud, between clouds, or...

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

A very cold high pressure that originates over the Arctic Ocean.

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

A storm characterized by the presence of lightning and its acoustic effect on the Earth's atmosphere known as thunder.

A scale for estimating wind speed based on observed conditions of the sea or land. It ranges from 0 (calm) to 12 (hurricane)...

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

The scientific study of climate, focusing on the analysis of long-term weather patterns and trends over time.

The heating of the Earth by the sun causes daily changes in both the direction and speed of the wind. During the day, ground...

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