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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...

A type of low-altitude cloud that forms in uniform layers, often covering the entire sky and producing overcast conditions.

A long, narrow region in the atmosphere that transport water vapor, like a river in the sky.

Anticyclones are areas of high atmospheric pressure that bring hot, dry weather in the summer and cold fronts in the winter.

The branch of science dealing with the laws of motion of air or other gases.

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

The horizontal transport of any feature within the atmosphere due to the movement of air (wind). This includes phenomena...

The mass of air surrounding the earth and bound to it more or less permanently by the earth's gravitational attraction.

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

A term used to identify clouds with a base height below 6,000 feet in the observer's direction. Stratiform clouds consist...