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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 cold core high is a high-pressure system with cold air at its center. These systems are typically associated with clear...

The temperature at which air becomes saturated with moisture and water vapor begins to condense into liquid form, leading...

A polar vortex is a circulating mass of air in the atmosphere, typically found in polar regions. This rotating air mass occurs...

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

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

Weather intelligence is technology that provides predictive and actionable insights, allowing businesses to adapt to weather-related...

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

A strong, downward wind caused by a localized column of air sinking rapidly, often resulting in damage similar to that caused...

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

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