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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 thick cloud of tiny water droplets suspended in the atmosphere near the Earth's surface, significantly reducing visibility.

A bomb cyclone is a large mid-latitude storm that forms when a storm’s central pressure drops (i.e. “bombs out”), resulting...

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

The lowest level of a given cloud or cloud layer in the atmosphere, relative to the observer's position above the ground.

The measure of the water vapor or moisture content in the air, expressed as the mass of water vapor per unit volume of air....

Weather is the day-to-day meteorological conditions that happen in our atmosphere. Weather can change within minutes, which...

A condition in which the stratification of the atmosphere depends on both air temperature and pressure, and where surfaces...

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

Weather conditions are the components that comprise the state of the atmosphere. The six main weather conditions are temperature,...

A cold core low is a low-pressure system where the coldest temperatures are found near the center. These systems are often...