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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The mass of air surrounding the earth and bound to it more or less permanently by the earth's gravitational attraction.
A type of low-altitude cloud that forms in uniform layers, often covering the entire sky and producing overcast conditions.
Condensation pressure deficit refers to the difference between the actual vapor pressure and the saturation vapor pressure...
The reflectance rate of a surface, indicating the amount of electromagnetic radiation reflected from the surface. It depends...
A long, narrow region in the atmosphere that transport water vapor, like a river in the sky.
A weather front where two air masses meet but neither is strong enough to move the other, often resulting in prolonged periods...
The decrease in temperature with height in an adiabatically rising air parcel (lapse rate). For dry air, this value is 1...
An instrument for measuring atmospheric pressure.
A cloud of irregular appearance, composed of irregular cloud fragments.
A rapidly rotating column of air extending from a thunderstorm to the ground, capable of causing significant damage.