What is Relative Humidity?
The percentage of water vapor in the air relative to the maximum amount of water vapor the air can hold at a given temperature.
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A towering cloud that often reaches great altitudes and is associated with thunderstorms, heavy rain, and sometimes severe...
A narrow band of strong winds in the upper atmosphere, typically flowing from west to east and influencing weather patterns.
A polar vortex is a circulating mass of air in the atmosphere, typically found in polar regions. This rotating air mass occurs...
A line on a weather map connecting points of equal atmospheric pressure, used to identify high and low-pressure systems.
Snow that rises to 8 feet or higher.
The heating of the Earth by the sun causes daily changes in both the direction and speed of the wind. During the day, ground...
Considerable cloudiness refers to weather conditions where a large portion of the sky is covered with clouds, but some clear...
In a severe storm, with a swirling motion in its left rear quadrant, a vertically rotating column of air, often seen with...
The lowest level of a given cloud or cloud layer in the atmosphere, relative to the observer's position above the ground.
The horizontal transport of any feature within the atmosphere due to the movement of air (wind). This includes phenomena...