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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

Coastal flooding occurs when water from the ocean, sea, or large lakes inundates land areas along the coast, usually due...

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

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

Although it is also used for light winds, it is the general name given to the daily cyclical winds that occur mostly between...

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

The reflectance rate of a surface, indicating the amount of electromagnetic radiation reflected from the surface. It depends...

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

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

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

A strong wind typically ranging from 34 to 40 knots (39 to 46 miles per hour) and often associated with rough seas and stormy...