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 heating of the Earth by the sun causes daily changes in both the direction and speed of the wind. During the day, ground...
A type of cloud consisting mostly of small particles such as ice particles.
A measure of how hot it feels when relative humidity is combined with the actual air temperature, often referred to as the...
A very cold high pressure that originates over the Arctic Ocean.
The reflectance rate of a surface, indicating the amount of electromagnetic radiation reflected from the surface. It depends...
A body that has the property of absorbing all electromagnetic radiation falling on it, and therefore is the theoretical body...
The mass of air surrounding the earth and bound to it more or less permanently by the earth's gravitational attraction.
A prefix used in cloud nomenclature to describe middle-altitude clouds that form between 6,500 and 20,000 feet, such as altostratus...
In a severe storm, with a swirling motion in its left rear quadrant, a vertically rotating column of air, often seen with...
A rapidly rotating column of air extending from a thunderstorm to the ground, capable of causing significant damage.