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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 front is the leading edge of a cold air mass that replaces a warmer air mass. It is typically associated with sudden...

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

In a severe storm, with a swirling motion in its left rear quadrant, a vertically rotating column of air, often seen with...

A measure of how hot it feels when relative humidity is combined with the actual air temperature, often referred to as the...

A distinct layer in a body of water where the temperature changes rapidly with depth, separating warmer surface water from...

A narrow band of strong winds in the upper atmosphere, typically flowing from west to east and influencing weather patterns.

A measurement determined by the wave lengths and sea conditions caused by the effect of wind, and by the movement of tree...

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

A tropical cyclone with sustained winds of at least 74 miles per hour, characterized by a central eye, strong winds, and...

A tropical cyclone, also called a hurricane, is a severe tropical storm with wind speeds in excess of 74 mph. Known as a...