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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...

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

The lowest level of a given cloud or cloud layer in the atmosphere, relative to the observer's position above the ground.

Meteorology is the scientific study of the atmosphere and weather processes. It involves observing, analyzing, and forecasting...

A body that has the property of absorbing all electromagnetic radiation falling on it, and therefore is the theoretical body...

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

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

The occurrence of storms resulting from the horizontal advection of cold air at high levels or the horizontal advection of...

Jet streams are strong, fast-flowing air currents in the upper levels of the atmosphere. They form when warm air masses meet...

Anticyclones are areas of high atmospheric pressure that bring hot, dry weather in the summer and cold fronts in the winter.