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

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

Frozen drizzle is a dangerous type of frozen rain. It’s a light rain that falls in very fine drops, which freezes on contact...

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

A periodic cooling of sea surface temperatures in the central and eastern Pacific Ocean, often leading to altered global...

A large body of air having similar horizontal temperature and moisture characteristics.

A weather watch means there is a risk of weather hazards in the near future, which could pose a threat to life/property....

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

Precipitation in the form of small balls or lumps of ice that form in thunderstorm updrafts and fall to the ground.

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

The term used for semi-stationary high-pressure centers such as the Azores and North Pacific Highs, which occur in the narrow...