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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A body that has the property of absorbing all electromagnetic radiation falling on it, and therefore is the theoretical body...
A scale for estimating wind speed based on observed conditions of the sea or land. It ranges from 0 (calm) to 12 (hurricane)...
A long, narrow region in the atmosphere that transport water vapor, like a river in the sky.
Precipitation in the form of small balls or lumps of ice that form in thunderstorm updrafts and fall to the ground.
The formation of ice crystals on surfaces when the temperature drops below freezing, typically overnight, causing potential...
An instrument that continuously records atmospheric pressure over time. It uses a barometer to measure pressure and creates...
The mass of air surrounding the earth and bound to it more or less permanently by the earth's gravitational attraction.
A drainage wind that flows downhill due to gravity, often associated with cold air descending from elevated regions.
The lowest level of a given cloud or cloud layer in the atmosphere, relative to the observer's position above the ground.
A weather system refers to the movement of warm and cold air across the globe, usually in a recurring pattern. Systems can...