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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The lowest level of a given cloud or cloud layer in the atmosphere, relative to the observer's position above the ground.
A large body of air having similar horizontal temperature and moisture characteristics.
A small, intense downdraft that produces damaging winds at the surface, typically lasting a few minutes and often associated...
A tropical cyclone, also called a hurricane, is a severe tropical storm with wind speeds in excess of 74 mph. Known as a...
The reflectance rate of a surface, indicating the amount of electromagnetic radiation reflected from the surface. It depends...
A weather warning means that a weather hazard is occurring, imminent, or likely. In other words, severe weather is happening...
A rapidly rotating column of air extending from a thunderstorm to the ground, capable of causing significant damage.
Considerable cloudiness refers to weather conditions where a large portion of the sky is covered with clouds, but some clear...
A measurement determined by the wave lengths and sea conditions caused by the effect of wind, and by the movement of tree...
A deviation from the normal or expected value in atmospheric or climatic conditions, often used in meteorology to identify...