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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 and rapid flow of snow masses accumulated on the slopes of mountainous areas under the influence of gravity or a...

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

Nor'easter is a meteorological event commonly observed in the Northeastern United States and typically occurs during the...

The formation of ice crystals on surfaces when the temperature drops below freezing, typically overnight, causing potential...

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

The process by which a solid changes directly into a gas without first becoming a liquid, such as ice turning into water...

Bright and dark rays with changing colors and contrast in the sky. These rays become visible due to the reflection of atmospheric...

Occurs when centers of high pressure and/or low pressure set up over a region in such a way that they prevent other weather...

A prefix used in cloud nomenclature to describe middle-altitude clouds that form between 6,500 and 20,000 feet, such as altostratus...

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