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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Considerable cloudiness refers to weather conditions where a large portion of the sky is covered with clouds, but some clear...
Thermodynamic changes occurring within a system without any exchange of heat with the surroundings. In the atmosphere, changes...
The mass of air surrounding the earth and bound to it more or less permanently by the earth's gravitational attraction.
In a severe storm, with a swirling motion in its left rear quadrant, a vertically rotating column of air, often seen with...
A line of severe thunderstorms that can form along or ahead of a cold front, often producing strong winds and heavy rain.
The branch of science dealing with the laws of motion of air or other gases.
The measure of the water vapor or moisture content in the air, expressed as the mass of water vapor per unit volume of air....
A strong wind typically ranging from 34 to 40 knots (39 to 46 miles per hour) and often associated with rough seas and stormy...
A thin, white cloud layer that is intertwined or separate, arranged in regular order, and does not cast a shadow.
Although it is also used for light winds, it is the general name given to the daily cyclical winds that occur mostly between...