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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

The amount of radiation, heat, or light passing through or flowing from a unit area of a surface.

An instrument that continuously records atmospheric pressure over time. It uses a barometer to measure pressure and creates...

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

The belt between 50-70 ° N and S latitudes in the Northern and Southern Hemispheres, adjacent to the Polar Region. Although...

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

A scale for estimating wind speed based on observed conditions of the sea or land. It ranges from 0 (calm) to 12 (hurricane)...

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

Ball lightning appears during thunderstorms, taking the shape of glowing, electric orbs in the sky. It can appear in a variety...

A blizzard is a storm that lasts 3 hours or more, with persistent winds/frequent gusts of 35 mph or more along with significant...

A cloud of irregular appearance, composed of irregular cloud fragments.