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 thin, white cloud layer that is intertwined or separate, arranged in regular order, and does not cast a shadow.
The process by which a solid changes directly into a gas without first becoming a liquid, such as ice turning into water...
Conduction is the transfer of heat or electricity through a material without the material itself moving. This occurs when...
Precipitation in the form of small balls or lumps of ice that form in thunderstorm updrafts and fall to the ground.
A mass of very cold, dry air that mostly originates over the Arctic Ocean.
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 term used to identify clouds with a base height below 6,000 feet in the observer's direction. Stratiform clouds consist...
In a severe storm, with a swirling motion in its left rear quadrant, a vertically rotating column of air, often seen with...
Local winds that blow from slopes to peaks as a result of the heating of the top slopes without being affected by general...